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Added signal to track cursor movements\nMoved the curor painting function into the class functions so it can be sub-classed

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This commit is contained in:
Neil J. Patel 2007-06-01 15:18:05 +00:00
parent d82c068faf
commit 214a2ead22
6 changed files with 154 additions and 21 deletions
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13
ChangeLog
View File

@ -1,4 +1,15 @@
2007-06-01 Tomas Frydrych <tf@openedhand.com>
2007-06-01 Neil J. Patel <njp@o-hand.com>
* clutter/clutter-entry.c: (clutter_entry_ensure_cursor_position),
(clutter_entry_clear_cursor_position),
(clutter_entry_paint_cursor), (clutter_entry_paint),
(clutter_entry_class_init), (clutter_entry_set_text),
(clutter_entry_set_position):
* clutter/clutter-entry.h:
Added a signla to track cursor movements.
Moved the sursor painting function so it can be subclassed.
007-06-01 Tomas Frydrych <tf@openedhand.com>
* clutter/clutter-actor.c:
(clutter_actor_get_transformed_point):

87
clutter/clutter-entry.c
View File

@ -39,12 +39,14 @@
#include "clutter-enum-types.h"
#include "clutter-keysyms.h"
#include "clutter-main.h"
#include "clutter-marshal.h"
#include "clutter-private.h"
#include "clutter-rectangle.h"
#include "clutter-units.h"
#include "pangoclutter.h"
#define DEFAULT_FONT_NAME "Sans 10"
#define ENTRY_CURSOR_WIDTH 1
G_DEFINE_TYPE (ClutterEntry, clutter_entry, CLUTTER_TYPE_ACTOR);
@ -66,6 +68,7 @@ enum
enum
{
TEXT_CHANGED,
CURSOR_EVENT,
LAST_SIGNAL
};
@ -102,7 +105,7 @@ struct _ClutterEntryPrivate
PangoLayout *layout;
gint width_chars;
PangoRectangle cursor_pos;
ClutterGeometry cursor_pos;
ClutterActor *cursor;
gboolean show_cursor;
};
@ -239,6 +242,7 @@ clutter_entry_ensure_cursor_position (ClutterEntry *entry)
{
ClutterEntryPrivate *priv;
gint index;
PangoRectangle rect;
priv = entry->priv;
@ -247,15 +251,43 @@ clutter_entry_ensure_cursor_position (ClutterEntry *entry)
else
index = priv->position;
pango_layout_get_cursor_pos (priv->layout, index,
&priv->cursor_pos, NULL);
if (priv->cursor_pos.width == 0)
{
pango_layout_get_cursor_pos (priv->layout, index, &rect, NULL);
priv->cursor_pos.x = rect.x / PANGO_SCALE;
priv->cursor_pos.y = rect.y / PANGO_SCALE;
priv->cursor_pos.width = ENTRY_CURSOR_WIDTH;
priv->cursor_pos.height = rect.height / PANGO_SCALE;
g_signal_emit (entry, entry_signals[CURSOR_EVENT], 0, &priv->cursor_pos);
}
}
static void
clutter_entry_clear_cursor_position (ClutterEntry *entry)
{
entry->priv->cursor_pos.width = 0;
}
void
clutter_entry_paint_cursor (ClutterEntry *entry)
{
ClutterEntryPrivate *priv;
priv = entry->priv;
if (priv->show_cursor)
{
clutter_actor_set_size (CLUTTER_ACTOR (priv->cursor),
1, priv->cursor_pos.height/ PANGO_SCALE);
priv->cursor_pos.width,
priv->cursor_pos.height);
clutter_actor_set_position (priv->cursor,
priv->cursor_pos.x/ PANGO_SCALE,
priv->cursor_pos.y/ PANGO_SCALE);
priv->cursor_pos.x,
priv->cursor_pos.y);
clutter_actor_paint (priv->cursor);
}
}
void
@ -277,14 +309,14 @@ clutter_entry_paint (ClutterActor *self)
}
clutter_entry_ensure_layout (entry, clutter_actor_get_width(self));
clutter_entry_ensure_cursor_position (entry);
priv->fgcol.alpha = clutter_actor_get_opacity(self);
pango_clutter_render_layout (priv->layout, 0, 0, &priv->fgcol, 0);
if (priv->show_cursor)
if (CLUTTER_ENTRY_GET_CLASS (entry)->paint_cursor != NULL)
{
clutter_entry_ensure_cursor_position (entry);
clutter_actor_paint (priv->cursor);
CLUTTER_ENTRY_GET_CLASS (entry)->paint_cursor (entry);
}
}
@ -343,6 +375,8 @@ clutter_entry_class_init (ClutterEntryClass *klass)
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
klass->paint_cursor = clutter_entry_paint_cursor;
actor_class->paint = clutter_entry_paint;
actor_class->request_coords = clutter_entry_request_coords;
@ -384,6 +418,11 @@ clutter_entry_class_init (ClutterEntryClass *klass)
PANGO_ALIGN_LEFT,
CLUTTER_PARAM_READWRITE));
/**
* ClutterEntry:position
*
* The current input cursor position. -1 is taken to be the end of the text
*/
g_object_class_install_property
(gobject_class, PROP_POSITION,
g_param_spec_int ( "position",
@ -393,11 +432,16 @@ clutter_entry_class_init (ClutterEntryClass *klass)
-1,
CLUTTER_PARAM_READWRITE));
/**
* ClutterEntry:cursor-visible
*
* Whether the input cursor is visible
*/
g_object_class_install_property
(gobject_class, PROP_CURSOR,
g_param_spec_boolean ( "cursor-visible",
"Cursor Visible",
"Whether the input cursor is visible ",
"Whether the input cursor is visible",
TRUE,
CLUTTER_PARAM_READWRITE));
@ -417,6 +461,26 @@ clutter_entry_class_init (ClutterEntryClass *klass)
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* ClutterEntry::cursor-event:
* @entry: the actor which received the event
* @geometry: a #ClutterGeometry
*
* The ::cursor-event signal is emitted each time the input cursors geometry
* changes, this could be a positional or size change. If you would like to
* implement your own input cursor, set the cursor-visible property to FALSE,
* and connect to this signal to position and size your own cursor.
*/
entry_signals[CURSOR_EVENT] =
g_signal_new ("cursor-event",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ClutterEntryClass, cursor_event),
NULL, NULL,
clutter_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
CLUTTER_TYPE_GEOMETRY | G_SIGNAL_TYPE_STATIC_SCOPE);
g_type_class_add_private (gobject_class, sizeof (ClutterEntryPrivate));
}
@ -563,6 +627,7 @@ clutter_entry_set_text (ClutterEntry *entry,
priv->text = g_strdup (text);
clutter_entry_clear_layout (entry);
clutter_entry_clear_cursor_position (entry);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(entry)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(entry));
@ -819,6 +884,8 @@ clutter_entry_set_position (ClutterEntry *entry, gint position)
else
priv->position = position;
clutter_entry_clear_cursor_position (entry);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(entry)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(entry));
}

7
clutter/clutter-entry.h
View File

@ -74,8 +74,13 @@ struct _ClutterEntryClass
/*< private >*/
ClutterActorClass parent_class;
/* vfuncs, not signals */
void (* paint_cursor) (ClutterEntry *entry);
/* signals */
void (* text_changed) (ClutterEntry *stage);
void (* text_changed) (ClutterEntry *entry);
void (* cursor_event) (ClutterEntry *entry,
ClutterGeometry *geometry);
/* padding for future */
void (*_clutter_entry_1) (void);

5
doc/reference/ChangeLog
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@ -1,3 +1,8 @@
2007-06-01 Neil J. Patel <njp@o-hand.com>
* clutter.types:
* tmpl/clutter-entry.sgml:
Updated for new signals/properties.
2007-06-01 Neil J. Patel <njp@o-hand.com>
* clutter-sections.txt:

1
doc/reference/clutter.types
View File

@ -19,3 +19,4 @@ clutter_behaviour_rotate_get_type
clutter_behaviour_scale_get_type
clutter_backend_get_type
clutter_vertices_get_type
clutter_entry_get_type

46
doc/reference/tmpl/clutter-entry.sgml
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@ -22,7 +22,51 @@ ClutterEntry
</para>
@parent:
<!-- ##### SIGNAL ClutterEntry::cursor-event ##### -->
<para>
</para>
@clutterentry: the object which received the signal.
@arg1:
<!-- ##### SIGNAL ClutterEntry::text-changed ##### -->
<para>
</para>
@clutterentry: the object which received the signal.
<!-- ##### ARG ClutterEntry:alignment ##### -->
<para>
</para>
<!-- ##### ARG ClutterEntry:color ##### -->
<para>
</para>
<!-- ##### ARG ClutterEntry:cursor-visible ##### -->
<para>
</para>
<!-- ##### ARG ClutterEntry:font-name ##### -->
<para>
</para>
<!-- ##### ARG ClutterEntry:position ##### -->
<para>
</para>
<!-- ##### ARG ClutterEntry:text ##### -->
<para>
</para>
<!-- ##### STRUCT ClutterEntryClass ##### -->
<para>