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mutter/clutter/clutter-drag-action.c

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action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author:
* Emmanuele Bassi <ebassi@linux.intel.com>
*/
/**
Miscellaneous documentation fixes
2010-05-19 15:10:05 +00:00
* SECTION:clutter-drag-action
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
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* @Title: ClutterDragAction
* @Short_Description: Action enabling dragging on actors
*
* #ClutterDragAction is a sub-class of #ClutterAction that implements
* all the necessary logic for dragging actors.
*
* The simplest usage of #ClutterDragAction consists in adding it to
docs: Fix DragAction documentation The ::drag-motion signal does not have a ModifierType argument; also, there's no need to connect to the ::drag-motion signal any more.
2010-05-25 12:10:38 +00:00
* a #ClutterActor and setting it as reactive; for instance, the following
* code:
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
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*
* |[
docs: Fix DragAction documentation The ::drag-motion signal does not have a ModifierType argument; also, there's no need to connect to the ::drag-motion signal any more.
2010-05-25 12:10:38 +00:00
* clutter_actor_add_action (actor, clutter_drag_action_new ());
* clutter_actor_set_reactive (actor, TRUE);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
* ]|
*
docs: Fix DragAction documentation The ::drag-motion signal does not have a ModifierType argument; also, there's no need to connect to the ::drag-motion signal any more.
2010-05-25 12:10:38 +00:00
* will automatically result in the actor moving to follow the pointer
* whenever the pointer's button is pressed over the actor and moved
* across the stage.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
docs: Fix DragAction documentation The ::drag-motion signal does not have a ModifierType argument; also, there's no need to connect to the ::drag-motion signal any more.
2010-05-25 12:10:38 +00:00
* The #ClutterDragAction will signal the begin and the end of a dragging
* through the #ClutterDragAction::drag-begin and #ClutterDragAction::drag-end
* signals, respectively. Each pointer motion during a drag will also result
* in the #ClutterDragAction::drag-motion signal to be emitted.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
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*
* It is also possible to set another #ClutterActor as the dragged actor
* by calling clutter_drag_action_set_drag_handle() from within a handle
* of the #ClutterDragAction::drag-begin signal. The drag handle must be
* parented and exist between the emission of #ClutterDragAction::drag-begin
* and #ClutterDragAction::drag-end.
*
* #ClutterDragAction is available since Clutter 1.4
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "clutter-drag-action.h"
#include "clutter-debug.h"
#include "clutter-enum-types.h"
#include "clutter-marshal.h"
#include "clutter-private.h"
drag-action: Use per-stage motion event toggle Similar to what we did for the ClutterDeviceManager, use per-stage granularity when toggling the motion event delivery while dragging.
2011-02-18 19:28:48 +00:00
#include "clutter-stage-private.h"
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
struct _ClutterDragActionPrivate
{
drag-action: Use per-stage motion event toggle Similar to what we did for the ClutterDeviceManager, use per-stage granularity when toggling the motion event delivery while dragging.
2011-02-18 19:28:48 +00:00
ClutterStage *stage;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
gint x_drag_threshold;
gint y_drag_threshold;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
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ClutterActor *drag_handle;
ClutterDragAxis drag_axis;
Support multiple pointers in ClutterDragAction. https://bugzilla.gnome.org/show_bug.cgi?id=653066
2011-06-21 13:17:51 +00:00
ClutterInputDevice *device;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
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gulong button_press_id;
gulong capture_id;
gfloat press_x;
gfloat press_y;
ClutterModifierType press_state;
gfloat last_motion_x;
gfloat last_motion_y;
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
ClutterModifierType last_motion_state;
ClutterInputDevice *last_motion_device;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
gfloat transformed_press_x;
gfloat transformed_press_y;
drag-action: Disable picking during drag While dragging we don't need to perform picking to determine the actor underneath the pointer, for two reasons: • we use a capture on the stage to determine the motion delta. • we know the actor underneath the pointer because that's the actor we are dragging around. This change should make dragging actors in complex scenes a bit faster.
2010-06-22 15:12:53 +00:00
guint emit_delayed_press : 1;
guint in_drag : 1;
guint motion_events_enabled : 1;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
};
enum
{
PROP_0,
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
PROP_X_DRAG_THRESHOLD,
PROP_Y_DRAG_THRESHOLD,
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
PROP_DRAG_HANDLE,
Conditionally use g_object_notify_by_pspec This adds a wrapper macro to clutter-private that will use g_object_notify_by_pspec if it's compiled against a version of GLib that is sufficiently new. Otherwise it will notify by the property name as before by extracting the name from the pspec. The objects can then store a static array of GParamSpecs and notify using those as suggested in the documentation for g_object_notify_by_pspec. Note that the name of the variable used for storing the array of GParamSpecs is obj_props instead of properties as used in the documentation because some places in Clutter uses 'properties' as the name of a local variable. Mose of the classes in Clutter have been converted using the script in the bug report. Some classes have not been modified even though the script picked them up as described here: json-generator: We probably don't want to modify the internal copy of JSON behaviour-depth: rectangle: score: stage-manager: These aren't using the separate GParamSpec* variable style. blur-effect: win32/device-manager: Don't actually define any properties even though it has the enum. box-layout: flow-layout: Have some per-child properties that don't work automatically with the script. clutter-model: The script gets confused with ClutterModelIter stage: Script gets confused because PROP_USER_RESIZE doesn't match "user-resizable" test-layout: Don't really want to modify the tests http://bugzilla.clutter-project.org/show_bug.cgi?id=2150
2010-06-21 09:20:32 +00:00
PROP_DRAG_AXIS,
PROP_LAST
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
};
Wrap g_object_class_install_properties() GObject ≥ 2.26.0 added a nice convenience call for installing properties from an array of GParamSpec. Since we're already storing all GParamSpec in an array in order to use them with g_object_notify_by_pspec(), this turns out nicely for us. Since we do not depend on GLib 2.26 (yet), we need to provide a simple private wrapper that implements the fall back to the default g_object_class_install_property() call. ClutterDragAction has been converted as a proof of concept.
2010-09-30 09:29:00 +00:00
static GParamSpec *drag_props[PROP_LAST] = { NULL, };
Conditionally use g_object_notify_by_pspec This adds a wrapper macro to clutter-private that will use g_object_notify_by_pspec if it's compiled against a version of GLib that is sufficiently new. Otherwise it will notify by the property name as before by extracting the name from the pspec. The objects can then store a static array of GParamSpecs and notify using those as suggested in the documentation for g_object_notify_by_pspec. Note that the name of the variable used for storing the array of GParamSpecs is obj_props instead of properties as used in the documentation because some places in Clutter uses 'properties' as the name of a local variable. Mose of the classes in Clutter have been converted using the script in the bug report. Some classes have not been modified even though the script picked them up as described here: json-generator: We probably don't want to modify the internal copy of JSON behaviour-depth: rectangle: score: stage-manager: These aren't using the separate GParamSpec* variable style. blur-effect: win32/device-manager: Don't actually define any properties even though it has the enum. box-layout: flow-layout: Have some per-child properties that don't work automatically with the script. clutter-model: The script gets confused with ClutterModelIter stage: Script gets confused because PROP_USER_RESIZE doesn't match "user-resizable" test-layout: Don't really want to modify the tests http://bugzilla.clutter-project.org/show_bug.cgi?id=2150
2010-06-21 09:20:32 +00:00
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
enum
{
DRAG_BEGIN,
DRAG_MOTION,
DRAG_END,
LAST_SIGNAL
};
static guint drag_signals[LAST_SIGNAL] = { 0, };
/* forward declaration */
static gboolean on_captured_event (ClutterActor *stage,
ClutterEvent *event,
ClutterDragAction *action);
G_DEFINE_TYPE (ClutterDragAction, clutter_drag_action, CLUTTER_TYPE_ACTION);
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
static void
get_drag_threshold (ClutterDragAction *action,
gint *x_threshold,
gint *y_threshold)
{
ClutterDragActionPrivate *priv = action->priv;
ClutterSettings *settings = clutter_settings_get_default ();
gint x_res, y_res, default_threshold;
g_object_get (settings, "dnd-drag-threshold", &default_threshold, NULL);
if (priv->x_drag_threshold < 0)
x_res = default_threshold;
else
x_res = priv->x_drag_threshold;
if (priv->y_drag_threshold < 0)
y_res = default_threshold;
else
y_res = priv->y_drag_threshold;
if (x_threshold != NULL)
*x_threshold = x_res;
if (y_threshold != NULL)
*y_threshold = y_res;
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
static void
emit_drag_begin (ClutterDragAction *action,
ClutterActor *actor,
ClutterEvent *event)
{
ClutterDragActionPrivate *priv = action->priv;
drag-action: Use per-stage motion event toggle Similar to what we did for the ClutterDeviceManager, use per-stage granularity when toggling the motion event delivery while dragging.
2011-02-18 19:28:48 +00:00
if (priv->stage != NULL)
drag-action: Use the dragged actor private API Use the newly added private API on ClutterStage to track the currently dragged actor. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:52:25 +00:00
{
clutter_stage_set_motion_events_enabled (priv->stage, FALSE);
_clutter_stage_add_drag_actor (priv->stage,
clutter_event_get_device (event),
priv->drag_handle != NULL
? priv->drag_handle
: actor);
}
drag-action: Disable picking during drag While dragging we don't need to perform picking to determine the actor underneath the pointer, for two reasons: • we use a capture on the stage to determine the motion delta. • we know the actor underneath the pointer because that's the actor we are dragging around. This change should make dragging actors in complex scenes a bit faster.
2010-06-22 15:12:53 +00:00
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
g_signal_emit (action, drag_signals[DRAG_BEGIN], 0,
actor,
priv->press_x, priv->press_y,
priv->press_state);
}
static void
emit_drag_motion (ClutterDragAction *action,
ClutterActor *actor,
ClutterEvent *event)
{
ClutterDragActionPrivate *priv = action->priv;
ClutterActor *drag_handle = NULL;
gfloat delta_x, delta_y;
gfloat motion_x, motion_y;
clutter_event_get_coords (event, &priv->last_motion_x, &priv->last_motion_y);
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
priv->last_motion_state = clutter_event_get_state (event);
priv->last_motion_device = clutter_event_get_device (event);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
if (priv->drag_handle != NULL && !priv->emit_delayed_press)
drag_handle = priv->drag_handle;
else
drag_handle = actor;
motion_x = motion_y = 0.0f;
clutter_actor_transform_stage_point (drag_handle,
priv->last_motion_x,
priv->last_motion_y,
&motion_x, &motion_y);
delta_x = delta_y = 0.0f;
switch (priv->drag_axis)
{
case CLUTTER_DRAG_AXIS_NONE:
delta_x = motion_x - priv->transformed_press_x;
delta_y = motion_y - priv->transformed_press_y;
break;
case CLUTTER_DRAG_X_AXIS:
delta_x = motion_x - priv->transformed_press_x;
break;
case CLUTTER_DRAG_Y_AXIS:
delta_y = motion_y - priv->transformed_press_y;
break;
default:
g_assert_not_reached ();
return;
}
if (priv->emit_delayed_press)
{
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
gint x_drag_threshold, y_drag_threshold;
get_drag_threshold (action, &x_drag_threshold, &y_drag_threshold);
if (ABS (delta_x) >= x_drag_threshold ||
ABS (delta_y) >= y_drag_threshold)
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
{
priv->emit_delayed_press = FALSE;
emit_drag_begin (action, actor, NULL);
}
else
return;
}
g_signal_emit (action, drag_signals[DRAG_MOTION], 0,
actor,
delta_x, delta_y);
}
static void
emit_drag_end (ClutterDragAction *action,
ClutterActor *actor,
ClutterEvent *event)
{
ClutterDragActionPrivate *priv = action->priv;
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
/* if we have an event, update our own state, otherwise we'll
* just use the currently stored state when emitting the ::drag-end
* signal
*/
if (event != NULL)
{
clutter_event_get_coords (event, &priv->last_motion_x, &priv->last_motion_y);
priv->last_motion_state = clutter_event_get_state (event);
priv->last_motion_device = clutter_event_get_device (event);
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/* we might not have emitted ::drag-begin yet */
if (!priv->emit_delayed_press)
g_signal_emit (action, drag_signals[DRAG_END], 0,
actor,
priv->last_motion_x, priv->last_motion_y,
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
priv->last_motion_state);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/* disconnect the capture */
if (priv->capture_id != 0)
{
g_signal_handler_disconnect (priv->stage, priv->capture_id);
priv->capture_id = 0;
}
stage: Make per-actor motion event delivery accessors public Complete the quest of commit bc548dc86271d38918d310c26c9c59de76218d16 by making the ClutterStage methods for controlling the per-actor motion and crossing event delivery public, and deprecating the global ones.
2011-06-20 10:41:28 +00:00
clutter_stage_set_motion_events_enabled (priv->stage,
priv->motion_events_enabled);
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
if (priv->last_motion_device != NULL)
_clutter_stage_remove_drag_actor (priv->stage, priv->last_motion_device);
drag-action: Disable picking during drag While dragging we don't need to perform picking to determine the actor underneath the pointer, for two reasons: • we use a capture on the stage to determine the motion delta. • we know the actor underneath the pointer because that's the actor we are dragging around. This change should make dragging actors in complex scenes a bit faster.
2010-06-22 15:12:53 +00:00
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv->in_drag = FALSE;
}
static gboolean
on_captured_event (ClutterActor *stage,
ClutterEvent *event,
ClutterDragAction *action)
{
ClutterDragActionPrivate *priv = action->priv;
ClutterActor *actor;
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (action));
if (!priv->in_drag)
return FALSE;
Support multiple pointers in ClutterDragAction. https://bugzilla.gnome.org/show_bug.cgi?id=653066
2011-06-21 13:17:51 +00:00
if (clutter_event_get_device (event) != priv->device)
return FALSE;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
switch (clutter_event_type (event))
{
case CLUTTER_MOTION:
{
ClutterModifierType mods = clutter_event_get_state (event);
/* we might miss a button-release event in case of grabs,
* so we need to check whether the button is still down
* during a motion event
*/
if (mods & CLUTTER_BUTTON1_MASK)
emit_drag_motion (action, actor, event);
else
emit_drag_end (action, actor, event);
}
break;
case CLUTTER_BUTTON_RELEASE:
if (priv->in_drag)
emit_drag_end (action, actor, event);
break;
drag-action: Capture ENTER when dragging This completes commit 9ab83cebf.
2010-08-12 07:53:06 +00:00
case CLUTTER_ENTER:
drag-action: Capture stage leave If we are dragging, we don't want the drag handle to emit a ::leave-event even if the pointer left the stage.
2010-08-11 13:42:56 +00:00
case CLUTTER_LEAVE:
if (priv->in_drag)
return TRUE;
break;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
default:
break;
}
return FALSE;
}
static gboolean
on_button_press (ClutterActor *actor,
ClutterEvent *event,
ClutterDragAction *action)
{
ClutterDragActionPrivate *priv = action->priv;
if (!clutter_actor_meta_get_enabled (CLUTTER_ACTOR_META (action)))
return FALSE;
drag-action: Remove the press event button Both ::drag-begin and ::drag-end have a "button" argument - even though we assume internally, and externally, that dragging can only be the result of a primary button operation.
2010-06-12 16:45:54 +00:00
if (clutter_event_get_button (event) != 1)
return FALSE;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
if (priv->stage == NULL)
drag-action: Use per-stage motion event toggle Similar to what we did for the ClutterDeviceManager, use per-stage granularity when toggling the motion event delivery while dragging.
2011-02-18 19:28:48 +00:00
priv->stage = CLUTTER_STAGE (clutter_actor_get_stage (actor));
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
clutter_event_get_coords (event, &priv->press_x, &priv->press_y);
priv->press_state = clutter_event_get_state (event);
Support multiple pointers in ClutterDragAction. https://bugzilla.gnome.org/show_bug.cgi?id=653066
2011-06-21 13:17:51 +00:00
priv->device = clutter_event_get_device (event);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv->last_motion_x = priv->press_x;
priv->last_motion_y = priv->press_y;
priv->transformed_press_x = priv->press_x;
priv->transformed_press_y = priv->press_y;
clutter_actor_transform_stage_point (actor, priv->press_x, priv->press_y,
&priv->transformed_press_x,
&priv->transformed_press_y);
drag-action: Use per-stage motion event toggle Similar to what we did for the ClutterDeviceManager, use per-stage granularity when toggling the motion event delivery while dragging.
2011-02-18 19:28:48 +00:00
priv->motion_events_enabled =
stage: Make per-actor motion event delivery accessors public Complete the quest of commit bc548dc86271d38918d310c26c9c59de76218d16 by making the ClutterStage methods for controlling the per-actor motion and crossing event delivery public, and deprecating the global ones.
2011-06-20 10:41:28 +00:00
clutter_stage_get_motion_events_enabled (priv->stage);
drag-action: fix case where motion events are indefinitely disabled When drag threshold is not reached, emit_drag_begin() is not called causing default value of priv->motion_events_enabled (false) to used to restore motion events enabled state in Clutter. This causes drag action to indefinitely disable motion events. The current value of motion events enabled state is now queried on button press which guarantees that the state will be restored with the correct value in emit_drag_end() http://bugzilla.clutter-project.org/show_bug.cgi?id=2522
2011-01-17 18:28:49 +00:00
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
if (priv->x_drag_threshold == 0 || priv->y_drag_threshold == 0)
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
emit_drag_begin (action, actor, event);
else
priv->emit_delayed_press = TRUE;
priv->in_drag = TRUE;
priv->capture_id = g_signal_connect_after (priv->stage, "captured-event",
G_CALLBACK (on_captured_event),
action);
return FALSE;
}
static void
clutter_drag_action_set_actor (ClutterActorMeta *meta,
ClutterActor *actor)
{
ClutterDragActionPrivate *priv = CLUTTER_DRAG_ACTION (meta)->priv;
if (priv->button_press_id != 0)
{
ClutterActor *old_actor;
old_actor = clutter_actor_meta_get_actor (meta);
g_signal_handler_disconnect (old_actor, priv->button_press_id);
priv->button_press_id = 0;
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
if (priv->capture_id != 0 && priv->stage != NULL)
{
g_signal_handler_disconnect (priv->stage, priv->capture_id);
priv->capture_id = 0;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv->stage = NULL;
}
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
clutter_drag_action_set_drag_handle (CLUTTER_DRAG_ACTION (meta), NULL);
priv->in_drag = FALSE;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
if (actor != NULL)
priv->button_press_id = g_signal_connect (actor, "button-press-event",
G_CALLBACK (on_button_press),
meta);
CLUTTER_ACTOR_META_CLASS (clutter_drag_action_parent_class)->set_actor (meta, actor);
}
drag: Add a default drag-motion behaviour The DragAction should, by default, drag the actor to which it has been applied, instead of delegating what to do to the developer. If custom code need to override it, g_signal_stop_emission_by_name() can be called to stop the default handler to ever running.
2010-05-25 10:01:46 +00:00
static void
clutter_drag_action_real_drag_motion (ClutterDragAction *action,
ClutterActor *actor,
gfloat delta_x,
gfloat delta_y)
{
ClutterActor *drag_handle;
if (action->priv->drag_handle != NULL)
drag_handle = action->priv->drag_handle;
else
drag_handle = actor;
clutter_actor_move_by (drag_handle, delta_x, delta_y);
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
static void
clutter_drag_action_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ClutterDragAction *action = CLUTTER_DRAG_ACTION (gobject);
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
ClutterDragActionPrivate *priv = action->priv;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
switch (prop_id)
{
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
case PROP_X_DRAG_THRESHOLD:
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
clutter_drag_action_set_drag_threshold (action,
g_value_get_int (value),
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
priv->y_drag_threshold);
break;
case PROP_Y_DRAG_THRESHOLD:
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
clutter_drag_action_set_drag_threshold (action,
priv->x_drag_threshold,
g_value_get_int (value));
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
break;
case PROP_DRAG_HANDLE:
clutter_drag_action_set_drag_handle (action, g_value_get_object (value));
break;
case PROP_DRAG_AXIS:
clutter_drag_action_set_drag_axis (action, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
clutter_drag_action_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterDragActionPrivate *priv = CLUTTER_DRAG_ACTION (gobject)->priv;
switch (prop_id)
{
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
case PROP_X_DRAG_THRESHOLD:
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
{
gint threshold;
get_drag_threshold (CLUTTER_DRAG_ACTION (gobject), &threshold, NULL);
g_value_set_int (value, threshold);
}
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
break;
case PROP_Y_DRAG_THRESHOLD:
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
{
gint threshold;
get_drag_threshold (CLUTTER_DRAG_ACTION (gobject), NULL, &threshold);
g_value_set_int (value, threshold);
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
break;
case PROP_DRAG_HANDLE:
g_value_set_object (value, priv->drag_handle);
break;
case PROP_DRAG_AXIS:
g_value_set_enum (value, priv->drag_axis);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
clutter_drag_action_dispose (GObject *gobject)
{
ClutterDragActionPrivate *priv = CLUTTER_DRAG_ACTION (gobject)->priv;
if (priv->capture_id != 0)
{
if (priv->stage != NULL)
g_signal_handler_disconnect (priv->stage, priv->capture_id);
priv->capture_id = 0;
priv->stage = NULL;
}
if (priv->button_press_id != 0)
{
ClutterActor *actor;
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (gobject));
g_signal_handler_disconnect (actor, priv->button_press_id);
priv->button_press_id = 0;
}
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
clutter_drag_action_set_drag_handle (CLUTTER_DRAG_ACTION (gobject), NULL);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
G_OBJECT_CLASS (clutter_drag_action_parent_class)->dispose (gobject);
}
static void
clutter_drag_action_class_init (ClutterDragActionClass *klass)
{
ClutterActorMetaClass *meta_class = CLUTTER_ACTOR_META_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (ClutterDragActionPrivate));
meta_class->set_actor = clutter_drag_action_set_actor;
drag: Add a default drag-motion behaviour The DragAction should, by default, drag the actor to which it has been applied, instead of delegating what to do to the developer. If custom code need to override it, g_signal_stop_emission_by_name() can be called to stop the default handler to ever running.
2010-05-25 10:01:46 +00:00
klass->drag_motion = clutter_drag_action_real_drag_motion;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/**
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* ClutterDragAction:x-drag-threshold:
*
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* The horizontal threshold, in pixels, that the cursor must travel
* in order to begin a drag action.
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
*
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* When set to a positive value, #ClutterDragAction will only emit
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* #ClutterDragAction::drag-begin if the pointer has moved
* horizontally at least of the given amount of pixels since
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* the button press event.
*
* When set to -1, #ClutterDragAction will use the default threshold
* stored in the #ClutterSettings:dnd-drag-threshold property of
* #ClutterSettings.
*
* When read, this property will always return a valid drag
* threshold, either as set or the default one.
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
*
* Since: 1.4
*/
Wrap g_object_class_install_properties() GObject ≥ 2.26.0 added a nice convenience call for installing properties from an array of GParamSpec. Since we're already storing all GParamSpec in an array in order to use them with g_object_notify_by_pspec(), this turns out nicely for us. Since we do not depend on GLib 2.26 (yet), we need to provide a simple private wrapper that implements the fall back to the default g_object_class_install_property() call. ClutterDragAction has been converted as a proof of concept.
2010-09-30 09:29:00 +00:00
drag_props[PROP_X_DRAG_THRESHOLD] =
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
g_param_spec_int ("x-drag-threshold",
P_("Horizontal Drag Threshold"),
P_("The horizontal amount of pixels required to start dragging"),
-1, G_MAXINT,
0,
CLUTTER_PARAM_READWRITE);
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
/**
* ClutterDragAction:y-drag-threshold:
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* The vertical threshold, in pixels, that the cursor must travel
* in order to begin a drag action.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* When set to a positive value, #ClutterDragAction will only emit
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* #ClutterDragAction::drag-begin if the pointer has moved
* vertically at least of the given amount of pixels since
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* the button press event.
*
* When set to -1, #ClutterDragAction will use the value stored
* in the #ClutterSettings:dnd-drag-threshold property of
* #ClutterSettings.
*
* When read, this property will always return a valid drag
* threshold, either as set or the default one.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
* Since: 1.4
*/
Wrap g_object_class_install_properties() GObject ≥ 2.26.0 added a nice convenience call for installing properties from an array of GParamSpec. Since we're already storing all GParamSpec in an array in order to use them with g_object_notify_by_pspec(), this turns out nicely for us. Since we do not depend on GLib 2.26 (yet), we need to provide a simple private wrapper that implements the fall back to the default g_object_class_install_property() call. ClutterDragAction has been converted as a proof of concept.
2010-09-30 09:29:00 +00:00
drag_props[PROP_Y_DRAG_THRESHOLD] =
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
g_param_spec_int ("y-drag-threshold",
P_("Vertical Drag Threshold"),
P_("The vertical amount of pixels required to start dragging"),
-1, G_MAXINT,
0,
CLUTTER_PARAM_READWRITE);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/**
* ClutterDragAction:drag-handle:
*
* The #ClutterActor that is effectively being dragged
*
docs: Fixes to avoid gtk-doc warnings
2010-08-17 13:54:20 +00:00
* A #ClutterDragAction will, be default, use the #ClutterActor that
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
* has been attached to the action; it is possible to create a
* separate #ClutterActor and use it instead.
*
* Setting this property has no effect on the #ClutterActor argument
* passed to the #ClutterDragAction signals
*
* Since: 1.4
*/
Wrap g_object_class_install_properties() GObject ≥ 2.26.0 added a nice convenience call for installing properties from an array of GParamSpec. Since we're already storing all GParamSpec in an array in order to use them with g_object_notify_by_pspec(), this turns out nicely for us. Since we do not depend on GLib 2.26 (yet), we need to provide a simple private wrapper that implements the fall back to the default g_object_class_install_property() call. ClutterDragAction has been converted as a proof of concept.
2010-09-30 09:29:00 +00:00
drag_props[PROP_DRAG_HANDLE] =
g_param_spec_object ("drag-handle",
P_("Drag Handle"),
P_("The actor that is being dragged"),
CLUTTER_TYPE_ACTOR,
CLUTTER_PARAM_READWRITE);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/**
* ClutterDragAction:drag-axis:
*
* Constraints the dragging action to the specified axis
*
* Since: 1.4
*/
Wrap g_object_class_install_properties() GObject ≥ 2.26.0 added a nice convenience call for installing properties from an array of GParamSpec. Since we're already storing all GParamSpec in an array in order to use them with g_object_notify_by_pspec(), this turns out nicely for us. Since we do not depend on GLib 2.26 (yet), we need to provide a simple private wrapper that implements the fall back to the default g_object_class_install_property() call. ClutterDragAction has been converted as a proof of concept.
2010-09-30 09:29:00 +00:00
drag_props[PROP_DRAG_AXIS] =
g_param_spec_enum ("drag-axis",
P_("Drag Axis"),
P_("Constraints the dragging to an axis"),
CLUTTER_TYPE_DRAG_AXIS,
CLUTTER_DRAG_AXIS_NONE,
CLUTTER_PARAM_READWRITE);
Remove conditional wrappers for property installation/notification For the time being, just keep the #define's.
2010-10-08 13:49:47 +00:00
gobject_class->set_property = clutter_drag_action_set_property;
gobject_class->get_property = clutter_drag_action_get_property;
gobject_class->dispose = clutter_drag_action_dispose;
Remove private helper #define's Finish off the second half of 09a830d294. http://bugzilla.clutter-project.org/show_bug.cgi?id=2596
2011-03-03 11:35:46 +00:00
g_object_class_install_properties (gobject_class,
PROP_LAST,
drag_props);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/**
* ClutterDragAction::drag-begin:
* @action: the #ClutterDragAction that emitted the signal
* @actor: the #ClutterActor attached to the action
* @event_x: the X coordinate (in stage space) of the press event
* @event_y: the Y coordinate (in stage space) of the press event
* @modifiers: the modifiers of the press event
*
* The ::drag-begin signal is emitted when the #ClutterDragAction
* starts the dragging
*
* The emission of this signal can be delayed by using the
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* #ClutterDragAction:x-drag-threshold and
* #ClutterDragAction:y-drag-threshold properties
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
* Since: 1.4
*/
drag_signals[DRAG_BEGIN] =
g_signal_new (I_("drag-begin"),
CLUTTER_TYPE_DRAG_ACTION,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterDragActionClass, drag_begin),
NULL, NULL,
drag-action: Remove the press event button Both ::drag-begin and ::drag-end have a "button" argument - even though we assume internally, and externally, that dragging can only be the result of a primary button operation.
2010-06-12 16:45:54 +00:00
_clutter_marshal_VOID__OBJECT_FLOAT_FLOAT_FLAGS,
G_TYPE_NONE, 4,
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
CLUTTER_TYPE_ACTOR,
G_TYPE_FLOAT,
G_TYPE_FLOAT,
CLUTTER_TYPE_MODIFIER_TYPE);
/**
* ClutterDragAction::drag-motion
* @action: the #ClutterDragAction that emitted the signal
* @actor: the #ClutterActor attached to the action
* @delta_x: the X component of the distance between the press event
* that began the dragging and the current position of the pointer,
* as of the latest motion event
* @delta_y: the Y component of the distance between the press event
* that began the dragging and the current position of the pointer,
* as of the latest motion event
*
* The ::drag-motion signal is emitted for each motion event after
* the #ClutterDragAction::drag-begin signal has been emitted.
*
* The components of the distance between the press event and the
* latest motion event are computed in the actor's coordinate space,
* to take into account eventual transformations. If you want the
* stage coordinates of the latest motion event you can use
* clutter_drag_action_get_motion_coords().
*
drag: Add a default drag-motion behaviour The DragAction should, by default, drag the actor to which it has been applied, instead of delegating what to do to the developer. If custom code need to override it, g_signal_stop_emission_by_name() can be called to stop the default handler to ever running.
2010-05-25 10:01:46 +00:00
* The default handler of the signal will call clutter_actor_move_by()
* either on @actor or, if set, of #ClutterDragAction:drag-handle using
* the @delta_x and @delta_y components of the dragging motion. If you
* want to override the default behaviour, you can connect to this
* signal and call g_signal_stop_emission_by_name() from within your
* callback.
*
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
* Since: 1.4
*/
drag_signals[DRAG_MOTION] =
g_signal_new (I_("drag-motion"),
CLUTTER_TYPE_DRAG_ACTION,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterDragActionClass, drag_motion),
NULL, NULL,
Hide the marshallers The marshallers we use for the signals are declared in a private header, and it stands to reason that they should also be hidden in the shared object by using the common '_' prefix. We are also using some direct g_cclosure_marshal_* symbol from GLib, instead of consistently use the clutter_marshal_* symbol.
2010-06-11 14:49:46 +00:00
_clutter_marshal_VOID__OBJECT_FLOAT_FLOAT,
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
G_TYPE_NONE, 3,
CLUTTER_TYPE_ACTOR,
G_TYPE_FLOAT,
G_TYPE_FLOAT);
/**
* ClutterDragAction::drag-end:
* @action: the #ClutterDragAction that emitted the signal
* @actor: the #ClutterActor attached to the action
* @event_x: the X coordinate (in stage space) of the release event
* @event_y: the Y coordinate (in stage space) of the release event
* @modifiers: the modifiers of the release event
*
* The ::drag-end signal is emitted at the end of the dragging,
* when the pointer button's is released
*
* This signal is emitted if and only if the #ClutterDragAction::drag-begin
* signal has been emitted first
*
* Since: 1.4
*/
drag_signals[DRAG_END] =
g_signal_new (I_("drag-end"),
CLUTTER_TYPE_DRAG_ACTION,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterDragActionClass, drag_end),
NULL, NULL,
drag-action: Remove the press event button Both ::drag-begin and ::drag-end have a "button" argument - even though we assume internally, and externally, that dragging can only be the result of a primary button operation.
2010-06-12 16:45:54 +00:00
_clutter_marshal_VOID__OBJECT_FLOAT_FLOAT_FLAGS,
G_TYPE_NONE, 4,
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
CLUTTER_TYPE_ACTOR,
G_TYPE_FLOAT,
G_TYPE_FLOAT,
CLUTTER_TYPE_MODIFIER_TYPE);
}
static void
clutter_drag_action_init (ClutterDragAction *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, CLUTTER_TYPE_DRAG_ACTION,
ClutterDragActionPrivate);
}
/**
* clutter_drag_action_new:
*
* Creates a new #ClutterDragAction instance
*
* Return value: the newly created #ClutterDragAction
*
* Since: 1.4
*/
ClutterAction *
clutter_drag_action_new (void)
{
return g_object_new (CLUTTER_TYPE_DRAG_ACTION, NULL);
}
/**
* clutter_drag_action_set_drag_threshold:
* @action: a #ClutterDragAction
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* @x_threshold: a distance on the horizontal axis, in pixels, or
* -1 to use the default drag threshold from #ClutterSettings
* @y_threshold: a distance on the vertical axis, in pixels, or
* -1 to use the default drag threshold from #ClutterSettings
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* Sets the horizontal and vertical drag thresholds that must be
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* cleared by the pointer before @action can begin the dragging.
*
* If @x_threshold or @y_threshold are set to -1 then the default
* drag threshold stored in the #ClutterSettings:dnd-drag-threshold
* property of #ClutterSettings will be used.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
* Since: 1.4
*/
void
clutter_drag_action_set_drag_threshold (ClutterDragAction *action,
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
gint x_threshold,
gint y_threshold)
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
{
ClutterDragActionPrivate *priv;
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
GObject *self;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
self = G_OBJECT (action);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv = action->priv;
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
g_object_freeze_notify (self);
if (priv->x_drag_threshold != x_threshold)
{
priv->x_drag_threshold = x_threshold;
Remove private helper #define's Finish off the second half of 09a830d294. http://bugzilla.clutter-project.org/show_bug.cgi?id=2596
2011-03-03 11:35:46 +00:00
g_object_notify_by_pspec (self, drag_props[PROP_X_DRAG_THRESHOLD]);
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
if (priv->y_drag_threshold != y_threshold)
{
priv->y_drag_threshold = y_threshold;
Remove private helper #define's Finish off the second half of 09a830d294. http://bugzilla.clutter-project.org/show_bug.cgi?id=2596
2011-03-03 11:35:46 +00:00
g_object_notify_by_pspec (self, drag_props[PROP_Y_DRAG_THRESHOLD]);
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
g_object_thaw_notify (self);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
}
/**
* clutter_drag_action_get_drag_threshold:
* @action: a #ClutterDragAction
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
* @x_threshold: (out): return location for the horizontal drag
* threshold value, in pixels
* @y_threshold: (out): return location for the vertical drag
* threshold value, in pixels
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
* Retrieves the values set by clutter_drag_action_set_drag_threshold().
*
* If the #ClutterDragAction:x-drag-threshold property or the
* #ClutterDragAction:y-drag-threshold property have been set to -1 then
* this function will return the default drag threshold value as stored
* by the #ClutterSettings:dnd-drag-threshold property of #ClutterSettings.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
* Since: 1.4
*/
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
void
clutter_drag_action_get_drag_threshold (ClutterDragAction *action,
guint *x_threshold,
drag-action: Allow using settings for the drag threshold ClutterDragAction should be able to use the newly added ClutterSettings property exposing the system's drag threshold. Currently, the x-drag-threshold and the y-drag-threshold properties (and relative accessors) use an unsigned integer for their values; we should be able to safely expand the range to include -1 as the minimum value, and use this new value to tell the ClutterDragAction that it should query the ClutterSettings object for the drag threshold. The storage of the properties has been changed, albeit in a compatible way, as GObject installs a uint ↔ int transformation function for GValue automatically. The setter for the drag thresholds has been changes to use a signed integer, but the getter has been updated to always Do The Right Thing™: it never returns -1 but, instead, will return the valid drag threshold, either from the value set or from the Settings singleton. This change is ABI compatible. http://bugzilla.clutter-project.org/show_bug.cgi?id=2583
2011-02-28 17:47:50 +00:00
guint *y_threshold)
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
{
drag-action: Fix a compiler warning Use arguments of the right signedness when passing pointers.
2011-03-21 12:41:40 +00:00
gint x_res, y_res;
drag-action: Added x-drag-threshold and y-drag-threshold properties *** This is an API change *** Replaced the original drag-threshold property with two separate horizontal (x-drag-threshold) and vertical (y-drag-threshold) thresholds. It is some times necessary to have different drag thresholds for the horizontal and vertical axes. For example, when a draggable actor is inside a horizontal scrolling area, only vertical movement must begin dragging. That can be achieved by setting the x-drag-threshold to G_MAXUINT while y-drag-threshold is something usual, say, 20 pixels. This is different than drag axis, because after the threshold has been cleared by the pointer, the draggable actor can be dragged along both axes (if allowed by the drag-axis property). http://bugzilla.clutter-project.org/show_bug.cgi?id=2291 Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-03 17:00:40 +00:00
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
drag-action: Fix a compiler warning Use arguments of the right signedness when passing pointers.
2011-03-21 12:41:40 +00:00
get_drag_threshold (action, &x_res, &y_res);
if (x_threshold != NULL)
*x_threshold = x_res;
if (y_threshold != NULL)
*y_threshold = y_res;
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
}
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
static void
on_drag_handle_destroy (ClutterActor *actor,
ClutterDragAction *action)
{
actions/drag: Be more reliable when destroying the drag handle Whenever the drag handle gets destroyed mid-drag we need to cancel any current drag operation and reset the state of the DragAction. https://bugzilla.gnome.org/show_bug.cgi?id=657681
2011-08-30 09:47:12 +00:00
ClutterDragActionPrivate *priv = action->priv;
/* make sure we reset the state */
if (priv->in_drag)
emit_drag_end (action, actor, NULL);
priv->drag_handle = NULL;
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
}
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
/**
* clutter_drag_action_set_drag_handle:
docs: Fix some wrong function/signal/property names
2010-11-18 14:14:37 +00:00
* @action: a #ClutterDragAction
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
* @handle: (allow-none): a #ClutterActor, or %NULL to unset
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
* Sets the actor to be used as the drag handle.
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
*
* Since: 1.4
*/
void
clutter_drag_action_set_drag_handle (ClutterDragAction *action,
ClutterActor *handle)
{
ClutterDragActionPrivate *priv;
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
g_return_if_fail (handle == NULL || CLUTTER_IS_ACTOR (handle));
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv = action->priv;
if (priv->drag_handle == handle)
return;
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
if (priv->drag_handle != NULL)
g_signal_handlers_disconnect_by_func (priv->drag_handle,
G_CALLBACK (on_drag_handle_destroy),
action);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
priv->drag_handle = handle;
drag-action: Remove the drag handle on destruction When the drag handle actor is destroyed we should unset the field inside the DragAction, to avoid having stale pointers lying around. https://bugzilla.gnome.org/show_bug.cgi?id=652842
2011-06-17 15:53:22 +00:00
if (priv->drag_handle != NULL)
g_signal_connect (priv->drag_handle, "destroy",
G_CALLBACK (on_drag_handle_destroy),
action);
Remove private helper #define's Finish off the second half of 09a830d294. http://bugzilla.clutter-project.org/show_bug.cgi?id=2596
2011-03-03 11:35:46 +00:00
g_object_notify_by_pspec (G_OBJECT (action), drag_props[PROP_DRAG_HANDLE]);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
}
/**
* clutter_drag_action_get_drag_handle:
* @action: a #ClutterDragAction
*
* Retrieves the drag handle set by clutter_drag_action_set_drag_handle()
*
* Return value: (transfer none): a #ClutterActor, used as the drag
* handle, or %NULL if none was set
*
* Since: 1.4
*/
ClutterActor *
clutter_drag_action_get_drag_handle (ClutterDragAction *action)
{
g_return_val_if_fail (CLUTTER_IS_DRAG_ACTION (action), NULL);
return action->priv->drag_handle;
}
/**
* clutter_drag_action_set_drag_axis:
* @action: a #ClutterDragAction
* @axis: the axis to constraint the dragging to
*
* Restricts the dragging action to a specific axis
*
* Since: 1.4
*/
void
clutter_drag_action_set_drag_axis (ClutterDragAction *action,
ClutterDragAxis axis)
{
ClutterDragActionPrivate *priv;
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
g_return_if_fail (axis >= CLUTTER_DRAG_AXIS_NONE &&
axis <= CLUTTER_DRAG_Y_AXIS);
priv = action->priv;
if (priv->drag_axis == axis)
return;
priv->drag_axis = axis;
Remove private helper #define's Finish off the second half of 09a830d294. http://bugzilla.clutter-project.org/show_bug.cgi?id=2596
2011-03-03 11:35:46 +00:00
g_object_notify_by_pspec (G_OBJECT (action), drag_props[PROP_DRAG_AXIS]);
action: Add DragAction, an action implementing drag capabilities DragAction is an Action sub-class that provides dragging capabilities to any actor. DragAction has: • drag-begin, drag-motion and drag-end signals, relaying the event information like coordinates, button and modifiers to user code; • drag-threshold property, for delaying the drag start by a given amount of pixels; • drag-handle property, to allow using other actors as the drag handle. • drag-axis property, to allow constraining the dragging to a specific axis. An interactive test demonstrating the various features is also provided.
2010-05-12 11:00:33 +00:00
}
/**
* clutter_drag_action_get_drag_axis:
* @action: a #ClutterDragAction
*
* Retrieves the axis constraint set by clutter_drag_action_set_drag_axis()
*
* Return value: the axis constraint
*
* Since: 1.4
*/
ClutterDragAxis
clutter_drag_action_get_drag_axis (ClutterDragAction *action)
{
g_return_val_if_fail (CLUTTER_IS_DRAG_ACTION (action),
CLUTTER_DRAG_AXIS_NONE);
return action->priv->drag_axis;
}
/**
* clutter_drag_action_get_press_coords:
* @action: a #ClutterDragAction
* @press_x: (out): return location for the press event's X coordinate
* @press_y: (out): return location for the press event's Y coordinate
*
* Retrieves the coordinates, in stage space, of the press event
* that started the dragging
*
* Since: 1.4
*/
void
clutter_drag_action_get_press_coords (ClutterDragAction *action,
gfloat *press_x,
gfloat *press_y)
{
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
if (press_x)
*press_x = action->priv->press_x;
if (press_y)
*press_y = action->priv->press_y;
}
/**
* clutter_drag_action_get_motion_coords:
* @action: a #ClutterDragAction
* @motion_x: (out): return location for the latest motion
* event's X coordinate
* @motion_y: (out): return location for the latest motion
* event's Y coordinate
*
* Retrieves the coordinates, in stage space, of the latest motion
* event during the dragging
*
* Since: 1.4
*/
void
clutter_drag_action_get_motion_coords (ClutterDragAction *action,
gfloat *motion_x,
gfloat *motion_y)
{
g_return_if_fail (CLUTTER_IS_DRAG_ACTION (action));
if (motion_x)
*motion_x = action->priv->last_motion_x;
if (motion_y)
*motion_y = action->priv->last_motion_y;
}
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