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authorMatthew Barnes <mbarnes@redhat.com>2010-08-13 03:05:34 +0800
committerMatthew Barnes <mbarnes@redhat.com>2010-08-13 03:41:02 +0800
commit6caf022926a6dc7ae0a84e514510def0de87109a (patch)
tree02e11a04238d2d0aa77cea2ef01b69069ebc1f89 /widgets/misc
parent5f49fa2561433c08a1f0450365b764ebfff3f611 (diff)
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ECanvas cleanups.
Diffstat (limited to 'widgets/misc')
-rw-r--r--widgets/misc/e-calendar.c2
-rw-r--r--widgets/misc/e-canvas.c689
-rw-r--r--widgets/misc/e-canvas.h125
3 files changed, 410 insertions, 406 deletions
diff --git a/widgets/misc/e-calendar.c b/widgets/misc/e-calendar.c
index fd8f882b25..bf556ae657 100644
--- a/widgets/misc/e-calendar.c
+++ b/widgets/misc/e-calendar.c
@@ -97,7 +97,7 @@ static void e_calendar_start_auto_move (ECalendar *cal,
static gboolean e_calendar_auto_move_handler (gpointer data);
static void e_calendar_stop_auto_move (ECalendar *cal);
-G_DEFINE_TYPE (ECalendar, e_calendar, E_CANVAS_TYPE)
+G_DEFINE_TYPE (ECalendar, e_calendar, E_TYPE_CANVAS)
static void
e_calendar_class_init (ECalendarClass *class)
diff --git a/widgets/misc/e-canvas.c b/widgets/misc/e-canvas.c
index 3b8d5ed57f..8d4336e4dd 100644
--- a/widgets/misc/e-canvas.c
+++ b/widgets/misc/e-canvas.c
@@ -28,24 +28,6 @@
#include "e-canvas.h"
-static void e_canvas_dispose (GObject *object);
-static void e_canvas_realize (GtkWidget *widget);
-static void e_canvas_unrealize (GtkWidget *widget);
-static gint e_canvas_key (GtkWidget *widget,
- GdkEventKey *event);
-static gint e_canvas_button (GtkWidget *widget,
- GdkEventButton *event);
-
-static gint e_canvas_focus_in (GtkWidget *widget,
- GdkEventFocus *event);
-static gint e_canvas_focus_out (GtkWidget *widget,
- GdkEventFocus *event);
-
-static void e_canvas_style_set (GtkWidget *widget,
- GtkStyle *previous_style);
-
-static gint emit_event (GnomeCanvas *canvas, GdkEvent *event);
-
#define d(x)
enum {
@@ -53,95 +35,15 @@ enum {
LAST_SIGNAL
};
-static guint e_canvas_signals [LAST_SIGNAL] = { 0, };
+static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE (ECanvas, e_canvas, GNOME_TYPE_CANVAS)
-static void
-e_canvas_class_init (ECanvasClass *klass)
-{
- GObjectClass *object_class;
- GtkWidgetClass *widget_class;
-
- object_class = (GObjectClass*) klass;
- widget_class = (GtkWidgetClass *) klass;
-
- object_class->dispose = e_canvas_dispose;
-
- widget_class->key_press_event = e_canvas_key;
- widget_class->key_release_event = e_canvas_key;
- widget_class->button_press_event = e_canvas_button;
- widget_class->button_release_event = e_canvas_button;
- widget_class->focus_in_event = e_canvas_focus_in;
- widget_class->focus_out_event = e_canvas_focus_out;
- widget_class->style_set = e_canvas_style_set;
- widget_class->realize = e_canvas_realize;
- widget_class->unrealize = e_canvas_unrealize;
-
- klass->reflow = NULL;
-
- e_canvas_signals [REFLOW] =
- g_signal_new ("reflow",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ECanvasClass, reflow),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-}
-
-static void
-e_canvas_init (ECanvas *canvas)
-{
- canvas->selection = NULL;
- canvas->cursor = NULL;
- canvas->im_context = gtk_im_multicontext_new ();
- canvas->tooltip_window = NULL;
-}
-
-static void
-e_canvas_dispose (GObject *object)
-{
- ECanvas *canvas = E_CANVAS(object);
-
- if (canvas->idle_id)
- g_source_remove(canvas->idle_id);
- canvas->idle_id = 0;
-
- if (canvas->grab_cancelled_check_id)
- g_source_remove (canvas->grab_cancelled_check_id);
- canvas->grab_cancelled_check_id = 0;
-
- if (canvas->toplevel) {
- if (canvas->visibility_notify_id)
- g_signal_handler_disconnect (canvas->toplevel,
- canvas->visibility_notify_id);
- canvas->visibility_notify_id = 0;
-
- g_object_unref (canvas->toplevel);
- canvas->toplevel = NULL;
- }
-
- if (canvas->im_context) {
- g_object_unref (canvas->im_context);
- canvas->im_context = NULL;
- }
-
- if ((G_OBJECT_CLASS (e_canvas_parent_class))->dispose)
- (*(G_OBJECT_CLASS (e_canvas_parent_class))->dispose) (object);
-}
-
-GtkWidget *
-e_canvas_new (void)
-{
- return GTK_WIDGET (g_object_new (E_CANVAS_TYPE, NULL));
-}
-
-/* Emits an event for an item in the canvas, be it the current item, grabbed
- * item, or focused item, as appropriate.
- */
+/* Emits an event for an item in the canvas, be it the current
+ * item, grabbed item, or focused item, as appropriate. */
static gint
-emit_event (GnomeCanvas *canvas, GdkEvent *event)
+canvas_emit_event (GnomeCanvas *canvas,
+ GdkEvent *event)
{
GdkEvent *ev;
gint finished;
@@ -166,77 +68,77 @@ emit_event (GnomeCanvas *canvas, GdkEvent *event)
if (canvas->grabbed_item) {
switch (event->type) {
- case GDK_ENTER_NOTIFY:
- mask = GDK_ENTER_NOTIFY_MASK;
- break;
+ case GDK_ENTER_NOTIFY:
+ mask = GDK_ENTER_NOTIFY_MASK;
+ break;
+
+ case GDK_LEAVE_NOTIFY:
+ mask = GDK_LEAVE_NOTIFY_MASK;
+ break;
+
+ case GDK_MOTION_NOTIFY:
+ mask = GDK_POINTER_MOTION_MASK;
+ break;
+
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ mask = GDK_BUTTON_PRESS_MASK;
+ break;
+
+ case GDK_BUTTON_RELEASE:
+ mask = GDK_BUTTON_RELEASE_MASK;
+ break;
+
+ case GDK_KEY_PRESS:
+ mask = GDK_KEY_PRESS_MASK;
+ break;
+
+ case GDK_KEY_RELEASE:
+ mask = GDK_KEY_RELEASE_MASK;
+ break;
+
+ default:
+ mask = 0;
+ break;
+ }
+
+ if (!(mask & canvas->grabbed_event_mask))
+ return FALSE;
+ }
+
+ /* Convert to world coordinates -- we have two cases because of
+ * different offsets of the fields in the event structures. */
+
+ ev = gdk_event_copy (event);
+ switch (ev->type) {
+ case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
- mask = GDK_LEAVE_NOTIFY_MASK;
+ gnome_canvas_window_to_world (
+ canvas,
+ ev->crossing.x, ev->crossing.y,
+ &ev->crossing.x, &ev->crossing.y);
break;
case GDK_MOTION_NOTIFY:
- mask = GDK_POINTER_MOTION_MASK;
- break;
-
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
- mask = GDK_BUTTON_PRESS_MASK;
- break;
-
case GDK_BUTTON_RELEASE:
- mask = GDK_BUTTON_RELEASE_MASK;
- break;
-
- case GDK_KEY_PRESS:
- mask = GDK_KEY_PRESS_MASK;
- break;
-
- case GDK_KEY_RELEASE:
- mask = GDK_KEY_RELEASE_MASK;
+ gnome_canvas_window_to_world (
+ canvas,
+ ev->motion.x, ev->motion.y,
+ &ev->motion.x, &ev->motion.y);
break;
default:
- mask = 0;
break;
- }
-
- if (!(mask & canvas->grabbed_event_mask))
- return FALSE;
- }
-
- /* Convert to world coordinates -- we have two cases because of diferent
- * offsets of the fields in the event structures.
- */
-
- ev = gdk_event_copy (event);
-
- switch (ev->type) {
- case GDK_ENTER_NOTIFY:
- case GDK_LEAVE_NOTIFY:
- gnome_canvas_window_to_world (canvas,
- ev->crossing.x, ev->crossing.y,
- &ev->crossing.x, &ev->crossing.y);
- break;
-
- case GDK_MOTION_NOTIFY:
- case GDK_BUTTON_PRESS:
- case GDK_2BUTTON_PRESS:
- case GDK_3BUTTON_PRESS:
- case GDK_BUTTON_RELEASE:
- gnome_canvas_window_to_world (canvas,
- ev->motion.x, ev->motion.y,
- &ev->motion.x, &ev->motion.y);
- break;
-
- default:
- break;
}
- /* The event is propagated up the hierarchy (for if someone connected to
- * a group instead of a leaf event), and emission is stopped if a
- * handler returns TRUE, just like for GtkWidget events.
- */
+ /* The event is propagated up the hierarchy (for if someone connected
+ * to a group instead of a leaf event), and emission is stopped if a
+ * handler returns TRUE, just like for GtkWidget events. */
finished = FALSE;
@@ -256,28 +158,10 @@ emit_event (GnomeCanvas *canvas, GdkEvent *event)
return finished;
}
-/* Key event handler for the canvas */
-static gint
-e_canvas_key (GtkWidget *widget, GdkEventKey *event)
-{
- GnomeCanvas *canvas;
- GdkEvent full_event;
-
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GNOME_IS_CANVAS (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- canvas = GNOME_CANVAS (widget);
-
- full_event.key = *event;
-
- return emit_event (canvas, &full_event);
-}
-
-/* This routine invokes the point method of the item. The argument x, y should
- * be in the parent's item-relative coordinate system. This routine applies the
- * inverse of the item's transform, maintaining the affine invariant.
- */
+/* This routine invokes the point method of the item. The argument x, y
+ * should be in the parent's item-relative coordinate system. This routine
+ * applies the inverse of the item's transform, maintaining the affine
+ * invariant. */
#define HACKISH_AFFINE
static double
@@ -423,11 +307,12 @@ pick_current_item (GnomeCanvas *canvas, GdkEvent *event)
new_event.crossing.detail = GDK_NOTIFY_ANCESTOR;
new_event.crossing.subwindow = NULL;
canvas->in_repick = TRUE;
- retval = emit_event (canvas, &new_event);
+ retval = canvas_emit_event (canvas, &new_event);
canvas->in_repick = FALSE;
}
- /* new_current_item may have been set to NULL during the call to emit_event() above */
+ /* new_current_item may have been set to NULL during
+ * the call to canvas_emit_event() above. */
if ((canvas->new_current_item != canvas->current_item) && button_down) {
canvas->left_grabbed_item = TRUE;
@@ -446,22 +331,117 @@ pick_current_item (GnomeCanvas *canvas, GdkEvent *event)
new_event.type = GDK_ENTER_NOTIFY;
new_event.crossing.detail = GDK_NOTIFY_ANCESTOR;
new_event.crossing.subwindow = NULL;
- retval = emit_event (canvas, &new_event);
+ retval = canvas_emit_event (canvas, &new_event);
}
return retval;
}
-/* Button event handler for the canvas */
+static void
+canvas_style_set_recursive (GnomeCanvasItem *item,
+ GtkStyle *previous_style)
+{
+ guint signal_id = g_signal_lookup ("style_set", G_OBJECT_TYPE (item));
+ if (signal_id >= 1) {
+ GSignalQuery query;
+ g_signal_query (signal_id, &query);
+ if (query.return_type == G_TYPE_NONE &&
+ query.n_params == 1 &&
+ query.param_types[0] == GTK_TYPE_STYLE) {
+ g_signal_emit (item, signal_id, 0, previous_style);
+ }
+ }
+
+ if (GNOME_IS_CANVAS_GROUP (item) ) {
+ GList *items = GNOME_CANVAS_GROUP (item)->item_list;
+ for (; items; items = items->next)
+ canvas_style_set_recursive (
+ items->data, previous_style);
+ }
+}
+
+static void
+canvas_dispose (GObject *object)
+{
+ ECanvas *canvas = E_CANVAS(object);
+
+ if (canvas->idle_id)
+ g_source_remove(canvas->idle_id);
+ canvas->idle_id = 0;
+
+ if (canvas->grab_cancelled_check_id)
+ g_source_remove (canvas->grab_cancelled_check_id);
+ canvas->grab_cancelled_check_id = 0;
+
+ if (canvas->toplevel) {
+ if (canvas->visibility_notify_id)
+ g_signal_handler_disconnect (canvas->toplevel,
+ canvas->visibility_notify_id);
+ canvas->visibility_notify_id = 0;
+
+ g_object_unref (canvas->toplevel);
+ canvas->toplevel = NULL;
+ }
+
+ if (canvas->im_context) {
+ g_object_unref (canvas->im_context);
+ canvas->im_context = NULL;
+ }
+
+ /* Chain up to parent's dispose() method. */
+ G_OBJECT_CLASS (e_canvas_parent_class)->dispose (object);
+}
+
+static void
+canvas_realize (GtkWidget *widget)
+{
+ ECanvas *ecanvas = E_CANVAS (widget);
+ GdkWindow *window;
+
+ /* Chain up to parent's realize() method. */
+ GTK_WIDGET_CLASS (e_canvas_parent_class)->realize (widget);
+
+ window = gtk_layout_get_bin_window (GTK_LAYOUT (widget));
+ gdk_window_set_back_pixmap (window, NULL, FALSE);
+
+ window = gtk_widget_get_window (widget);
+ gtk_im_context_set_client_window (ecanvas->im_context, window);
+}
+
+static void
+canvas_unrealize (GtkWidget *widget)
+{
+ ECanvas * ecanvas = E_CANVAS (widget);
+
+ if (ecanvas->idle_id) {
+ g_source_remove(ecanvas->idle_id);
+ ecanvas->idle_id = 0;
+ }
+
+ gtk_im_context_set_client_window (ecanvas->im_context, NULL);
+
+ /* Chain up to parent's unrealize() method. */
+ GTK_WIDGET_CLASS (e_canvas_parent_class)->unrealize (widget);
+}
+
+static void
+canvas_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ canvas_style_set_recursive (
+ GNOME_CANVAS_ITEM (gnome_canvas_root (
+ GNOME_CANVAS (widget))), previous_style);
+}
+
static gint
-e_canvas_button (GtkWidget *widget, GdkEventButton *event)
+canvas_button_event (GtkWidget *widget,
+ GdkEventButton *event)
{
GnomeCanvas *canvas;
GdkWindow *bin_window;
gint mask;
gint retval;
- g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GNOME_IS_CANVAS (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
@@ -482,109 +462,75 @@ e_canvas_button (GtkWidget *widget, GdkEventButton *event)
return retval;
switch (event->button) {
- case 1:
- mask = GDK_BUTTON1_MASK;
- break;
- case 2:
- mask = GDK_BUTTON2_MASK;
- break;
- case 3:
- mask = GDK_BUTTON3_MASK;
- break;
- case 4:
- mask = GDK_BUTTON4_MASK;
- break;
- case 5:
- mask = GDK_BUTTON5_MASK;
- break;
- default:
- mask = 0;
+ case 1:
+ mask = GDK_BUTTON1_MASK;
+ break;
+ case 2:
+ mask = GDK_BUTTON2_MASK;
+ break;
+ case 3:
+ mask = GDK_BUTTON3_MASK;
+ break;
+ case 4:
+ mask = GDK_BUTTON4_MASK;
+ break;
+ case 5:
+ mask = GDK_BUTTON5_MASK;
+ break;
+ default:
+ mask = 0;
}
switch (event->type) {
- case GDK_BUTTON_PRESS:
- case GDK_2BUTTON_PRESS:
- case GDK_3BUTTON_PRESS:
- /* Pick the current item as if the button were not pressed, and
- * then process the event.
- */
- canvas->state = event->state;
- pick_current_item (canvas, (GdkEvent *) event);
- canvas->state ^= mask;
- retval = emit_event (canvas, (GdkEvent *) event);
- break;
-
- case GDK_BUTTON_RELEASE:
- /* Process the event as if the button were pressed, then repick
- * after the button has been released
- */
- canvas->state = event->state;
- retval = emit_event (canvas, (GdkEvent *) event);
- event->state ^= mask;
- canvas->state = event->state;
- pick_current_item (canvas, (GdkEvent *) event);
- event->state ^= mask;
- break;
-
- default:
- g_return_val_if_reached(0);
+ case GDK_BUTTON_PRESS:
+ case GDK_2BUTTON_PRESS:
+ case GDK_3BUTTON_PRESS:
+ /* Pick the current item as if the button were not
+ * pressed, and then process the event. */
+ canvas->state = event->state;
+ pick_current_item (canvas, (GdkEvent *) event);
+ canvas->state ^= mask;
+ retval = canvas_emit_event (canvas, (GdkEvent *) event);
+ break;
+
+ case GDK_BUTTON_RELEASE:
+ /* Process the event as if the button were pressed,
+ * then repick after the button has been released. */
+ canvas->state = event->state;
+ retval = canvas_emit_event (canvas, (GdkEvent *) event);
+ event->state ^= mask;
+ canvas->state = event->state;
+ pick_current_item (canvas, (GdkEvent *) event);
+ event->state ^= mask;
+ break;
+
+ default:
+ g_return_val_if_reached (0);
}
return retval;
}
-/**
- * e_canvas_item_grab_focus:
- * @item: A canvas item.
- * @widget_too: Whether or not to grab the widget-level focus too
- *
- * Makes the specified item take the keyboard focus, so all keyboard
- * events will be sent to it. If the canvas widget itself did not have
- * the focus and @widget_too is %TRUE, it grabs that focus as well.
- **/
-void
-e_canvas_item_grab_focus (GnomeCanvasItem *item, gboolean widget_too)
+static gint
+canvas_key_event (GtkWidget *widget,
+ GdkEventKey *event)
{
- GnomeCanvasItem *focused_item;
- GdkWindow *bin_window;
- GdkEvent ev;
-
- g_return_if_fail (item != NULL);
- g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
- g_return_if_fail (gtk_widget_get_can_focus (GTK_WIDGET (item->canvas)));
-
- bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (item->canvas));
-
- focused_item = item->canvas->focused_item;
-
- if (focused_item) {
- ev.focus_change.type = GDK_FOCUS_CHANGE;
- ev.focus_change.window = bin_window;
- ev.focus_change.send_event = FALSE;
- ev.focus_change.in = FALSE;
-
- emit_event (item->canvas, &ev);
- }
+ GnomeCanvas *canvas;
+ GdkEvent full_event;
- item->canvas->focused_item = item;
+ g_return_val_if_fail (GNOME_IS_CANVAS (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
- if (widget_too && !gtk_widget_has_focus (GTK_WIDGET(item->canvas))) {
- gtk_widget_grab_focus (GTK_WIDGET (item->canvas));
- }
+ canvas = GNOME_CANVAS (widget);
- if (item) {
- ev.focus_change.type = GDK_FOCUS_CHANGE;
- ev.focus_change.window = bin_window;
- ev.focus_change.send_event = FALSE;
- ev.focus_change.in = TRUE;
+ full_event.key = *event;
- emit_event (item->canvas, &ev);
- }
+ return canvas_emit_event (canvas, &full_event);
}
-/* Focus in handler for the canvas */
static gint
-e_canvas_focus_in (GtkWidget *widget, GdkEventFocus *event)
+canvas_focus_in_event (GtkWidget *widget,
+ GdkEventFocus *event)
{
GnomeCanvas *canvas;
ECanvas *ecanvas;
@@ -603,15 +549,15 @@ e_canvas_focus_in (GtkWidget *widget, GdkEventFocus *event)
if (canvas->focused_item) {
full_event.focus_change = *event;
- return emit_event (canvas, &full_event);
+ return canvas_emit_event (canvas, &full_event);
} else {
return FALSE;
}
}
-/* Focus out handler for the canvas */
static gint
-e_canvas_focus_out (GtkWidget *widget, GdkEventFocus *event)
+canvas_focus_out_event (GtkWidget *widget,
+ GdkEventFocus *event)
{
GnomeCanvas *canvas;
ECanvas *ecanvas;
@@ -630,75 +576,106 @@ e_canvas_focus_out (GtkWidget *widget, GdkEventFocus *event)
if (canvas->focused_item) {
full_event.focus_change = *event;
- return emit_event (canvas, &full_event);
+ return canvas_emit_event (canvas, &full_event);
} else {
return FALSE;
}
}
static void
-ec_style_set_recursive (GnomeCanvasItem *item, GtkStyle *previous_style)
+e_canvas_class_init (ECanvasClass *class)
{
- guint signal_id = g_signal_lookup ("style_set", G_OBJECT_TYPE (item));
- if (signal_id >= 1) {
- GSignalQuery query;
- g_signal_query (signal_id, &query);
- if (query.return_type == G_TYPE_NONE &&
- query.n_params == 1 &&
- query.param_types[0] == GTK_TYPE_STYLE) {
- g_signal_emit (item, signal_id, 0, previous_style);
- }
- }
+ GObjectClass *object_class;
+ GtkWidgetClass *widget_class;
- if (GNOME_IS_CANVAS_GROUP (item) ) {
- GList *items = GNOME_CANVAS_GROUP (item)->item_list;
- for (; items; items = items->next)
- ec_style_set_recursive (items->data, previous_style);
- }
+ object_class = G_OBJECT_CLASS (class);
+ object_class->dispose = canvas_dispose;
+
+ widget_class = GTK_WIDGET_CLASS (class);
+ widget_class->realize = canvas_realize;
+ widget_class->unrealize = canvas_unrealize;
+ widget_class->style_set = canvas_style_set;
+ widget_class->button_press_event = canvas_button_event;
+ widget_class->button_release_event = canvas_button_event;
+ widget_class->key_press_event = canvas_key_event;
+ widget_class->key_release_event = canvas_key_event;
+ widget_class->focus_in_event = canvas_focus_in_event;
+ widget_class->focus_out_event = canvas_focus_out_event;
+
+ signals[REFLOW] = g_signal_new (
+ "reflow",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (ECanvasClass, reflow),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
}
static void
-e_canvas_style_set (GtkWidget *widget, GtkStyle *previous_style)
+e_canvas_init (ECanvas *canvas)
{
- ec_style_set_recursive (
- GNOME_CANVAS_ITEM (gnome_canvas_root (GNOME_CANVAS (widget))),
- previous_style);
+ canvas->im_context = gtk_im_multicontext_new ();
}
-static void
-e_canvas_realize (GtkWidget *widget)
+GtkWidget *
+e_canvas_new (void)
{
- ECanvas *ecanvas = E_CANVAS (widget);
- GdkWindow *window;
+ return g_object_new (E_TYPE_CANVAS, NULL);
+}
- if (GTK_WIDGET_CLASS (e_canvas_parent_class)->realize)
- (* GTK_WIDGET_CLASS (e_canvas_parent_class)->realize) (widget);
+/**
+ * e_canvas_item_grab_focus:
+ * @item: A canvas item.
+ * @widget_too: Whether or not to grab the widget-level focus too
+ *
+ * Makes the specified item take the keyboard focus, so all keyboard
+ * events will be sent to it. If the canvas widget itself did not have
+ * the focus and @widget_too is %TRUE, it grabs that focus as well.
+ **/
+void
+e_canvas_item_grab_focus (GnomeCanvasItem *item,
+ gboolean widget_too)
+{
+ GnomeCanvasItem *focused_item;
+ GdkWindow *bin_window;
+ GdkEvent ev;
- window = gtk_layout_get_bin_window (GTK_LAYOUT (widget));
- gdk_window_set_back_pixmap (window, NULL, FALSE);
+ g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
+ g_return_if_fail (gtk_widget_get_can_focus (GTK_WIDGET (item->canvas)));
- window = gtk_widget_get_window (widget);
- gtk_im_context_set_client_window (ecanvas->im_context, window);
-}
+ bin_window = gtk_layout_get_bin_window (GTK_LAYOUT (item->canvas));
-static void
-e_canvas_unrealize (GtkWidget *widget)
-{
- ECanvas * ecanvas = E_CANVAS (widget);
+ focused_item = item->canvas->focused_item;
- if (ecanvas->idle_id) {
- g_source_remove(ecanvas->idle_id);
- ecanvas->idle_id = 0;
+ if (focused_item) {
+ ev.focus_change.type = GDK_FOCUS_CHANGE;
+ ev.focus_change.window = bin_window;
+ ev.focus_change.send_event = FALSE;
+ ev.focus_change.in = FALSE;
+
+ canvas_emit_event (item->canvas, &ev);
}
- gtk_im_context_set_client_window (ecanvas->im_context, NULL);
+ item->canvas->focused_item = item;
+
+ if (widget_too && !gtk_widget_has_focus (GTK_WIDGET(item->canvas))) {
+ gtk_widget_grab_focus (GTK_WIDGET (item->canvas));
+ }
- if (GTK_WIDGET_CLASS (e_canvas_parent_class)->unrealize)
- (* GTK_WIDGET_CLASS (e_canvas_parent_class)->unrealize) (widget);
+ if (item) {
+ ev.focus_change.type = GDK_FOCUS_CHANGE;
+ ev.focus_change.window = bin_window;
+ ev.focus_change.send_event = FALSE;
+ ev.focus_change.in = TRUE;
+
+ canvas_emit_event (item->canvas, &ev);
+ }
}
static void
-e_canvas_item_invoke_reflow (GnomeCanvasItem *item, gint flags)
+e_canvas_item_invoke_reflow (GnomeCanvasItem *item,
+ gint flags)
{
GnomeCanvasGroup *group;
GList *list;
@@ -747,8 +724,7 @@ idle_handler (gpointer data)
/* Reset idle id */
canvas->idle_id = 0;
- g_signal_emit (canvas,
- e_canvas_signals [REFLOW], 0);
+ g_signal_emit (canvas, signals [REFLOW], 0);
GDK_THREADS_LEAVE();
@@ -780,6 +756,8 @@ e_canvas_item_descendent_needs_reflow (GnomeCanvasItem *item)
void
e_canvas_item_request_reflow (GnomeCanvasItem *item)
{
+ g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
+
if (item->flags & GNOME_CANVAS_ITEM_REALIZED) {
item->flags |= E_CANVAS_ITEM_NEEDS_REFLOW;
e_canvas_item_descendent_needs_reflow(item);
@@ -790,15 +768,21 @@ e_canvas_item_request_reflow (GnomeCanvasItem *item)
void
e_canvas_item_request_parent_reflow (GnomeCanvasItem *item)
{
- g_return_if_fail(item != NULL);
- g_return_if_fail(GNOME_IS_CANVAS_ITEM(item));
- e_canvas_item_request_reflow(item->parent);
+ g_return_if_fail (GNOME_IS_CANVAS_ITEM(item));
+
+ e_canvas_item_request_reflow (item->parent);
}
void
-e_canvas_item_set_reflow_callback (GnomeCanvasItem *item, ECanvasItemReflowFunc func)
+e_canvas_item_set_reflow_callback (GnomeCanvasItem *item,
+ ECanvasItemReflowFunc func)
{
- g_object_set_data(G_OBJECT(item), "ECanvasItem::reflow_callback", (gpointer) func);
+ g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
+ g_return_if_fail (func != NULL);
+
+ g_object_set_data (
+ G_OBJECT(item), "ECanvasItem::reflow_callback",
+ (gpointer) func);
}
static gboolean
@@ -833,38 +817,43 @@ grab_cancelled_check (gpointer data)
gint
e_canvas_item_grab (ECanvas *canvas,
- GnomeCanvasItem *item,
- guint event_mask,
- GdkCursor *cursor,
- guint32 etime,
- ECanvasItemGrabCancelled cancelled_cb,
- gpointer cancelled_data)
+ GnomeCanvasItem *item,
+ guint event_mask,
+ GdkCursor *cursor,
+ guint32 etime,
+ ECanvasItemGrabCancelled cancelled_cb,
+ gpointer cancelled_data)
{
- if (gtk_grab_get_current ()) {
+ gint ret_val;
+
+ g_return_val_if_fail (E_IS_CANVAS (canvas), -1);
+ g_return_val_if_fail (GNOME_IS_CANVAS_ITEM (item), -1);
+
+ if (gtk_grab_get_current ())
return GDK_GRAB_ALREADY_GRABBED;
- } else {
- gint ret_val = gnome_canvas_item_grab (item, event_mask, cursor, etime);
- if (ret_val == GDK_GRAB_SUCCESS) {
- canvas->grab_cancelled_cb = cancelled_cb;
- canvas->grab_cancelled_check_id =
- g_timeout_add_full (G_PRIORITY_LOW,
- 100,
- grab_cancelled_check,
- canvas,
- NULL);
- canvas->grab_cancelled_time = etime;
- canvas->grab_cancelled_data = cancelled_data;
- }
- return ret_val;
+ ret_val = gnome_canvas_item_grab (
+ item, event_mask, cursor, etime);
+ if (ret_val == GDK_GRAB_SUCCESS) {
+ canvas->grab_cancelled_cb = cancelled_cb;
+ canvas->grab_cancelled_check_id = g_timeout_add_full (
+ G_PRIORITY_LOW, 100,
+ grab_cancelled_check, canvas, NULL);
+ canvas->grab_cancelled_time = etime;
+ canvas->grab_cancelled_data = cancelled_data;
}
+
+ return ret_val;
}
void
e_canvas_item_ungrab (ECanvas *canvas,
- GnomeCanvasItem *item,
- guint32 etime)
+ GnomeCanvasItem *item,
+ guint32 etime)
{
+ g_return_if_fail (E_IS_CANVAS (canvas));
+ g_return_if_fail (GNOME_IS_CANVAS_ITEM (item));
+
if (canvas->grab_cancelled_check_id) {
g_source_remove (canvas->grab_cancelled_check_id);
canvas->grab_cancelled_cb = NULL;
diff --git a/widgets/misc/e-canvas.h b/widgets/misc/e-canvas.h
index ea2364c749..fbcdd44981 100644
--- a/widgets/misc/e-canvas.h
+++ b/widgets/misc/e-canvas.h
@@ -20,38 +20,51 @@
*
*/
-#ifndef __E_CANVAS_H__
-#define __E_CANVAS_H__
+#ifndef E_CANVAS_H
+#define E_CANVAS_H
#include <gtk/gtk.h>
#include <libgnomecanvas/gnome-canvas.h>
-G_BEGIN_DECLS
-
/* ECanvas - A class derived from canvas for the purpose of adding
- * evolution specific canvas hacks.
- */
+ * evolution specific canvas hacks. */
+
+/* Standard GObject macros */
+#define E_TYPE_CANVAS \
+ (e_canvas_get_type ())
+#define E_CANVAS(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST \
+ ((obj), E_TYPE_CANVAS, ECanvas))
+#define E_CANVAS_CLASS(cls) \
+ (G_TYPE_CHECK_CLASS_CAST \
+ ((cls), E_TYPE_CANVAS, ECanvasClass))
+#define E_IS_CANVAS(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE \
+ ((obj), E_TYPE_CANVAS))
+#define E_IS_CANVAS_CLASS(cls) \
+ (G_TYPE_CHECK_CLASS_TYPE \
+ ((cls), E_TYPE_CANVAS))
+#define E_CANVAS_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS \
+ ((obj), E_TYPE_CANVAS, ECanvasClass))
-#define E_CANVAS_TYPE (e_canvas_get_type ())
-#define E_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), E_CANVAS_TYPE, ECanvas))
-#define E_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), E_CANVAS_TYPE, ECanvasClass))
-#define E_IS_CANVAS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), E_CANVAS_TYPE))
-#define E_IS_CANVAS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((obj), E_CANVAS_TYPE))
+G_BEGIN_DECLS
-typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item,
- gint flags);
+typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item,
+ gint flags);
-typedef void (*ECanvasItemSelectionFunc) (GnomeCanvasItem *item,
- gint flags,
- gpointer user_data);
+typedef void (*ECanvasItemSelectionFunc) (GnomeCanvasItem *item,
+ gint flags,
+ gpointer user_data);
/* Returns the same as strcmp does. */
-typedef gint (*ECanvasItemSelectionCompareFunc) (GnomeCanvasItem *item,
- gpointer data1,
- gpointer data2,
- gint flags);
+typedef gint (*ECanvasItemSelectionCompareFunc)
+ (GnomeCanvasItem *item,
+ gpointer data1,
+ gpointer data2,
+ gint flags);
-typedef struct _ECanvas ECanvas;
-typedef struct _ECanvasClass ECanvasClass;
+typedef struct _ECanvas ECanvas;
+typedef struct _ECanvasClass ECanvasClass;
/* Object flags for items */
enum {
@@ -70,18 +83,20 @@ typedef struct {
gpointer id;
} ECanvasSelectionInfo;
-typedef void (*ECanvasItemGrabCancelled) (ECanvas *canvas, GnomeCanvasItem *item, gpointer data);
+typedef void (*ECanvasItemGrabCancelled) (ECanvas *canvas,
+ GnomeCanvasItem *item,
+ gpointer data);
-struct _ECanvas
-{
+struct _ECanvas {
GnomeCanvas parent;
- gint idle_id;
- GList *selection;
+
+ gint idle_id;
+ GList *selection;
ECanvasSelectionInfo *cursor;
- GtkWidget *tooltip_window;
- gint visibility_notify_id;
- GtkWidget *toplevel;
+ GtkWidget *tooltip_window;
+ gint visibility_notify_id;
+ GtkWidget *toplevel;
/* Input context for dead key support */
GtkIMContext *im_context;
@@ -92,36 +107,36 @@ struct _ECanvas
gpointer grab_cancelled_data;
};
-struct _ECanvasClass
-{
+struct _ECanvasClass {
GnomeCanvasClass parent_class;
- void (* reflow) (ECanvas *canvas);
+
+ void (*reflow) (ECanvas *canvas);
};
-GType e_canvas_get_type (void);
-GtkWidget *e_canvas_new (void);
+GType e_canvas_get_type (void);
+GtkWidget * e_canvas_new (void);
/* Used to send all of the keystroke events to a specific item as well as
- * GDK_FOCUS_CHANGE events.
- */
-void e_canvas_item_grab_focus (GnomeCanvasItem *item,
- gboolean widget_too);
-void e_canvas_item_request_reflow (GnomeCanvasItem *item);
-void e_canvas_item_request_parent_reflow (GnomeCanvasItem *item);
-void e_canvas_item_set_reflow_callback (GnomeCanvasItem *item,
- ECanvasItemReflowFunc func);
-
-gint e_canvas_item_grab (ECanvas *canvas,
- GnomeCanvasItem *item,
- guint event_mask,
- GdkCursor *cursor,
- guint32 etime,
- ECanvasItemGrabCancelled cancelled,
- gpointer cancelled_data);
-void e_canvas_item_ungrab (ECanvas *canvas,
- GnomeCanvasItem *item,
- guint32 etime);
+ * GDK_FOCUS_CHANGE events. */
+void e_canvas_item_grab_focus (GnomeCanvasItem *item,
+ gboolean widget_too);
+void e_canvas_item_request_reflow (GnomeCanvasItem *item);
+void e_canvas_item_request_parent_reflow
+ (GnomeCanvasItem *item);
+void e_canvas_item_set_reflow_callback
+ (GnomeCanvasItem *item,
+ ECanvasItemReflowFunc func);
+gint e_canvas_item_grab (ECanvas *canvas,
+ GnomeCanvasItem *item,
+ guint event_mask,
+ GdkCursor *cursor,
+ guint32 etime,
+ ECanvasItemGrabCancelled cancelled,
+ gpointer cancelled_data);
+void e_canvas_item_ungrab (ECanvas *canvas,
+ GnomeCanvasItem *item,
+ guint32 etime);
G_END_DECLS
-#endif /* __E_CANVAS_H__ */
+#endif /* E_CANVAS_H */