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gnome-shell/src/tidy/tidy-button.c
Owen Taylor f8db7689af Experimentally add build infrastructure and a few Tidy widgets 
For experimenting with using tidy, import TidyButton and TidyGrid
(+ dependencies) into our source tree and set up build machinery
to build them and build a typelib for them.

The sources are build right into libgnome-shell.so, so the Shell.gir
and Tidy.gir actually point to the same shared library.

src/Makefile-tidy.am: Build libtidy-1.0.la
src/Makefile.am: Include built tidy into gnome-shell.la and
  build Tidy-1.0.typelib

src/tidy/*: Add some source files from Tidy

svn path=/trunk/; revision=42
2008-11-12 21:09:27 +00:00

375 lines
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/* tidy-button.c: Plain button actor
*
* Copyright (C) 2007 OpenedHand
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Written by: Emmanuele Bassi <ebassi@openedhand.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <clutter/clutter.h>
#include "tidy-button.h"
#include "tidy-debug.h"
#include "tidy-marshal.h"
#include "tidy-stylable.h"
enum
{
PROP_0,
PROP_LABEL
};
enum
{
CLICKED,
LAST_SIGNAL
};
#define TIDY_BUTTON_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), TIDY_TYPE_BUTTON, TidyButtonPrivate))
struct _TidyButtonPrivate
{
gchar *text;
ClutterTimeline *timeline;
ClutterEffectTemplate *press_tmpl;
guint8 old_opacity;
guint is_pressed : 1;
};
static guint button_signals[LAST_SIGNAL] = { 0, };
G_DEFINE_TYPE (TidyButton, tidy_button, TIDY_TYPE_FRAME);
static void
tidy_button_real_pressed (TidyButton *button)
{
TidyButtonPrivate *priv = button->priv;
ClutterActor *actor = CLUTTER_ACTOR (button);
if (G_UNLIKELY (!priv->press_tmpl))
{
priv->timeline = clutter_timeline_new_for_duration (250);
priv->press_tmpl = clutter_effect_template_new (priv->timeline,
clutter_sine_inc_func);
clutter_effect_template_set_timeline_clone (priv->press_tmpl, FALSE);
}
if (clutter_timeline_is_playing (priv->timeline))
{
clutter_timeline_stop (priv->timeline);
clutter_actor_set_opacity (actor, priv->old_opacity);
}
priv->old_opacity = clutter_actor_get_opacity (actor);
clutter_effect_fade (priv->press_tmpl, actor,
0x44,
NULL, NULL);
}
static void
tidy_button_real_released (TidyButton *button)
{
TidyButtonPrivate *priv = button->priv;
ClutterActor *actor = CLUTTER_ACTOR (button);
if (G_UNLIKELY (!priv->press_tmpl))
{
priv->timeline = clutter_timeline_new_for_duration (250);
priv->press_tmpl = clutter_effect_template_new (priv->timeline,
clutter_sine_inc_func);
clutter_effect_template_set_timeline_clone (priv->press_tmpl, FALSE);
}
if (clutter_timeline_is_playing (priv->timeline))
clutter_timeline_stop (priv->timeline);
clutter_effect_fade (priv->press_tmpl, actor,
priv->old_opacity,
NULL, NULL);
}
static void
tidy_button_construct_child (TidyButton *button)
{
TidyButtonPrivate *priv = button->priv;
gchar *font_name;
ClutterColor *text_color;
ClutterActor *label;
if (!priv->text)
return;
tidy_stylable_get (TIDY_STYLABLE (button),
"font-name", &font_name,
"text-color", &text_color,
NULL);
label = g_object_new (CLUTTER_TYPE_LABEL,
"font-name", font_name,
"text", priv->text,
"color", text_color,
"alignment", PANGO_ALIGN_CENTER,
"ellipsize", PANGO_ELLIPSIZE_MIDDLE,
"use-markup", TRUE,
"wrap", FALSE,
NULL);
clutter_actor_show (label);
clutter_container_add_actor (CLUTTER_CONTAINER (button), label);
clutter_color_free (text_color);
g_free (font_name);
}
static gboolean
tidy_button_button_press (ClutterActor *actor,
ClutterButtonEvent *event)
{
if (event->button == 1 &&
event->click_count == 1)
{
TidyButton *button = TIDY_BUTTON (actor);
TidyButtonClass *klass = TIDY_BUTTON_GET_CLASS (button);
button->priv->is_pressed = TRUE;
clutter_grab_pointer (actor);
if (klass->pressed)
klass->pressed (button);
return TRUE;
}
return FALSE;
}
static gboolean
tidy_button_button_release (ClutterActor *actor,
ClutterButtonEvent *event)
{
if (event->button == 1)
{
TidyButton *button = TIDY_BUTTON (actor);
TidyButtonClass *klass = TIDY_BUTTON_GET_CLASS (button);
if (!button->priv->is_pressed)
return FALSE;
clutter_ungrab_pointer ();
button->priv->is_pressed = FALSE;
if (klass->released)
klass->released (button);
g_signal_emit (button, button_signals[CLICKED], 0);
return TRUE;
}
return FALSE;
}
static gboolean
tidy_button_leave (ClutterActor *actor,
ClutterCrossingEvent *event)
{
TidyButton *button = TIDY_BUTTON (actor);
if (button->priv->is_pressed)
{
TidyButtonClass *klass = TIDY_BUTTON_GET_CLASS (button);
clutter_ungrab_pointer ();
button->priv->is_pressed = FALSE;
if (klass->released)
klass->released (button);
}
return FALSE;
}
static void
tidy_button_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
TidyButton *button = TIDY_BUTTON (gobject);
switch (prop_id)
{
case PROP_LABEL:
tidy_button_set_label (button, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
tidy_button_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
TidyButtonPrivate *priv = TIDY_BUTTON (gobject)->priv;
switch (prop_id)
{
case PROP_LABEL:
g_value_set_string (value, priv->text);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
tidy_button_finalize (GObject *gobject)
{
TidyButtonPrivate *priv = TIDY_BUTTON (gobject)->priv;
g_free (priv->text);
G_OBJECT_CLASS (tidy_button_parent_class)->finalize (gobject);
}
static void
tidy_button_dispose (GObject *gobject)
{
TidyButtonPrivate *priv = TIDY_BUTTON (gobject)->priv;
if (priv->press_tmpl)
{
g_object_unref (priv->press_tmpl);
g_object_unref (priv->timeline);
priv->press_tmpl = NULL;
priv->timeline = NULL;
}
G_OBJECT_CLASS (tidy_button_parent_class)->dispose (gobject);
}
static void
tidy_button_class_init (TidyButtonClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
g_type_class_add_private (klass, sizeof (TidyButtonPrivate));
klass->pressed = tidy_button_real_pressed;
klass->released = tidy_button_real_released;
gobject_class->set_property = tidy_button_set_property;
gobject_class->get_property = tidy_button_get_property;
gobject_class->dispose = tidy_button_dispose;
gobject_class->finalize = tidy_button_finalize;
actor_class->button_press_event = tidy_button_button_press;
actor_class->button_release_event = tidy_button_button_release;
actor_class->leave_event = tidy_button_leave;
g_object_class_install_property (gobject_class,
PROP_LABEL,
g_param_spec_string ("label",
"Label",
"Label of the button",
NULL,
G_PARAM_READWRITE));
button_signals[CLICKED] =
g_signal_new ("clicked",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (TidyButtonClass, clicked),
NULL, NULL,
_tidy_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
tidy_button_init (TidyButton *button)
{
button->priv = TIDY_BUTTON_GET_PRIVATE (button);
}
ClutterActor *
tidy_button_new (void)
{
return g_object_new (TIDY_TYPE_BUTTON, NULL);
}
ClutterActor *
tidy_button_new_with_label (const gchar *text)
{
return g_object_new (TIDY_TYPE_BUTTON, "label", text, NULL);
}
G_CONST_RETURN gchar *
tidy_button_get_label (TidyButton *button)
{
g_return_val_if_fail (TIDY_IS_BUTTON (button), NULL);
return button->priv->text;
}
void
tidy_button_set_label (TidyButton *button,
const gchar *text)
{
TidyButtonPrivate *priv;
g_return_if_fail (TIDY_IS_BUTTON (button));
priv = button->priv;
g_free (priv->text);
priv->text = g_strdup (text);
tidy_button_construct_child (button);
g_object_notify (G_OBJECT (button), "label");
}
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