diff options
Diffstat (limited to 'e-util/e-canvas.c')
| -rw-r--r-- | e-util/e-canvas.c | 102 |
1 files changed, 72 insertions, 30 deletions
diff --git a/e-util/e-canvas.c b/e-util/e-canvas.c index 5b843bf5b8..0da4dade28 100644 --- a/e-util/e-canvas.c +++ b/e-util/e-canvas.c @@ -1,5 +1,5 @@ /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* +/* * e-canvas.c * Copyright (C) 2000 Helix Code, Inc. * Author: Chris Lahey <clahey@helixcode.com> @@ -26,6 +26,7 @@ static void e_canvas_init (ECanvas *card); static void e_canvas_destroy (GtkObject *object); static void e_canvas_class_init (ECanvasClass *klass); static void e_canvas_realize (GtkWidget *widget); +static void e_canvas_unrealize (GtkWidget *widget); static gint e_canvas_key (GtkWidget *widget, GdkEventKey *event); @@ -49,7 +50,7 @@ GtkType e_canvas_get_type (void) { static GtkType canvas_type = 0; - + if (!canvas_type) { static const GtkTypeInfo canvas_info = @@ -63,10 +64,10 @@ e_canvas_get_type (void) /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; - + canvas_type = gtk_type_unique (gnome_canvas_get_type (), &canvas_info); } - + return canvas_type; } @@ -76,11 +77,11 @@ e_canvas_class_init (ECanvasClass *klass) GtkObjectClass *object_class; GnomeCanvasClass *canvas_class; GtkWidgetClass *widget_class; - + object_class = (GtkObjectClass*) klass; canvas_class = (GnomeCanvasClass *) klass; widget_class = (GtkWidgetClass *) klass; - + parent_class = gtk_type_class (gnome_canvas_get_type ()); object_class->destroy = e_canvas_destroy; @@ -90,7 +91,8 @@ e_canvas_class_init (ECanvasClass *klass) widget_class->focus_in_event = e_canvas_focus_in; widget_class->focus_out_event = e_canvas_focus_out; widget_class->realize = e_canvas_realize; - + widget_class->unrealize = e_canvas_unrealize; + klass->reflow = NULL; e_canvas_signals [REFLOW] = @@ -109,6 +111,8 @@ e_canvas_init (ECanvas *canvas) { canvas->selection = NULL; canvas->cursor = NULL; + canvas->ic = NULL; + canvas->ic_attr = NULL; } static void @@ -307,13 +311,13 @@ e_canvas_item_grab_focus (GnomeCanvasItem *item) if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET(item->canvas))) { gtk_widget_grab_focus (GTK_WIDGET (item->canvas)); } - + if (focused_item) { ev.focus_change.type = GDK_FOCUS_CHANGE; ev.focus_change.window = GTK_LAYOUT (item->canvas)->bin_window; ev.focus_change.send_event = FALSE; ev.focus_change.in = TRUE; - + emit_event (item->canvas, &ev); } } @@ -323,11 +327,16 @@ static gint e_canvas_focus_in (GtkWidget *widget, GdkEventFocus *event) { GnomeCanvas *canvas; + ECanvas *ecanvas; canvas = GNOME_CANVAS (widget); + ecanvas = E_CANVAS (widget); GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS); + if (ecanvas->ic) + gdk_im_begin (ecanvas->ic, canvas->layout.bin_window); + if (canvas->focused_item) return emit_event (canvas, (GdkEvent *) event); else @@ -344,6 +353,8 @@ e_canvas_focus_out (GtkWidget *widget, GdkEventFocus *event) GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS); + gdk_im_end (); + if (canvas->focused_item) return emit_event (canvas, (GdkEvent *) event); else @@ -353,10 +364,52 @@ e_canvas_focus_out (GtkWidget *widget, GdkEventFocus *event) static void e_canvas_realize (GtkWidget *widget) { + ECanvas *ecanvas = E_CANVAS (widget); + if (GTK_WIDGET_CLASS (parent_class)->realize) (* GTK_WIDGET_CLASS (parent_class)->realize) (widget); - + gdk_window_set_back_pixmap (GTK_LAYOUT (widget)->bin_window, NULL, FALSE); + + if (gdk_im_ready () && (ecanvas->ic_attr = gdk_ic_attr_new ()) != NULL) { + GdkEventMask mask; + GdkICAttr *attr = ecanvas->ic_attr; + GdkICAttributesType attrmask = GDK_IC_ALL_REQ; + GdkIMStyle style; + GdkIMStyle supported_style = GDK_IM_PREEDIT_NONE | + GDK_IM_PREEDIT_NOTHING | + GDK_IM_STATUS_NONE | + GDK_IM_STATUS_NOTHING; + + attr->style = style = gdk_im_decide_style (supported_style); + attr->client_window = ecanvas->parent.layout.bin_window; + + ecanvas->ic = gdk_ic_new (attr, attrmask); + if (ecanvas->ic != NULL) { + mask = gdk_window_get_events (attr->client_window); + mask |= gdk_ic_get_events (ecanvas->ic); + gdk_window_set_events (attr->client_window, mask); + + if (GTK_WIDGET_HAS_FOCUS (widget)) + gdk_im_begin (ecanvas->ic, attr->client_window); + } else + g_warning ("Can't create input context."); + } + +} + +static void +e_canvas_unrealize (GtkWidget *widget) +{ + ECanvas * ecanvas = E_CANVAS (widget); + if (ecanvas->ic) { + gdk_ic_destroy (ecanvas->ic); + ecanvas->ic = NULL; + } + if (ecanvas->ic_attr) { + gdk_ic_attr_destroy (ecanvas->ic_attr); + ecanvas->ic_attr = NULL; + } } static void @@ -374,7 +427,7 @@ e_canvas_item_invoke_reflow (GnomeCanvasItem *item, int flags) e_canvas_item_invoke_reflow (child, flags); } } - + if (item->object.flags & E_CANVAS_ITEM_NEEDS_REFLOW) { ECanvasItemReflowFunc func; func = gtk_object_get_data (GTK_OBJECT (item), @@ -504,16 +557,16 @@ e_canvas_item_set_cursor (GnomeCanvasItem *item, gpointer id) canvas->selection = NULL; gnome_canvas_item_grab_focus(item); - + info = g_new(ECanvasSelectionInfo, 1); info->item = item; info->id = id; - + flags = E_CANVAS_ITEM_SELECTION_SELECT | E_CANVAS_ITEM_SELECTION_CURSOR; func = gtk_object_get_data(GTK_OBJECT(item), "ECanvasItem::selection_callback"); if (func) func(item, flags, id); - + canvas->selection = g_list_prepend(canvas->selection, info); canvas->cursor = info; } @@ -535,16 +588,16 @@ e_canvas_item_add_selection (GnomeCanvasItem *item, gpointer id) g_return_if_fail(GNOME_IS_CANVAS_ITEM(item)); g_return_if_fail(item->canvas != NULL); g_return_if_fail(E_IS_CANVAS(item->canvas)); - + flags = E_CANVAS_ITEM_SELECTION_SELECT; canvas = E_CANVAS(item->canvas); - + if (canvas->cursor) { func = gtk_object_get_data(GTK_OBJECT(canvas->cursor->item), "ECanvasItem::selection_callback"); if (func) func(canvas->cursor->item, flags, canvas->cursor->id); } - + gnome_canvas_item_grab_focus(item); flags = E_CANVAS_ITEM_SELECTION_SELECT | E_CANVAS_ITEM_SELECTION_CURSOR; @@ -556,7 +609,7 @@ e_canvas_item_add_selection (GnomeCanvasItem *item, gpointer id) func = gtk_object_get_data(GTK_OBJECT(item), "ECanvasItem::selection_callback"); if (func) func(item, flags, id); - + canvas->selection = g_list_prepend(canvas->selection, info); canvas->cursor = info; } @@ -579,7 +632,7 @@ e_canvas_item_remove_selection (GnomeCanvasItem *item, gpointer id) for (list = canvas->selection; list; list = g_list_next(list)) { info = list->data; - + if (info->item == item) { ECanvasItemSelectionCompareFunc compare_func; compare_func = gtk_object_get_data(GTK_OBJECT(info->item), "ECanvasItem::selection_compare_callback"); @@ -601,14 +654,3 @@ e_canvas_item_remove_selection (GnomeCanvasItem *item, gpointer id) } } } - - - - - - - - - - - |