diff options
Diffstat (limited to 'e-util/e-canvas.h')
| -rw-r--r-- | e-util/e-canvas.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/e-util/e-canvas.h b/e-util/e-canvas.h new file mode 100644 index 0000000000..8d704b963c --- /dev/null +++ b/e-util/e-canvas.h @@ -0,0 +1,141 @@ +/* + * This program 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) version 3. + * + * This program 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 the program; if not, see <http://www.gnu.org/licenses/> + * + * + * Authors: + * Chris Lahey <clahey@ximian.com> + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION) +#error "Only <e-util/e-util.h> should be included directly." +#endif + +#ifndef E_CANVAS_H +#define E_CANVAS_H + +#include <gtk/gtk.h> +#include <libgnomecanvas/gnome-canvas.h> + +/* ECanvas - A class derived from canvas for the purpose of adding + * 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)) + +G_BEGIN_DECLS + +typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item, + gint flags); + +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 struct _ECanvas ECanvas; +typedef struct _ECanvasClass ECanvasClass; + +/* Object flags for items */ +enum { + E_CANVAS_ITEM_NEEDS_REFLOW = 1 << 13, + E_CANVAS_ITEM_DESCENDENT_NEEDS_REFLOW = 1 << 14 +}; + +typedef struct { + GnomeCanvasItem *item; + gpointer id; +} ECanvasSelectionInfo; + +typedef void (*ECanvasItemGrabCancelled) (ECanvas *canvas, + GnomeCanvasItem *item, + gpointer data); + +struct _ECanvas { + GnomeCanvas parent; + + gint idle_id; + GList *selection; + ECanvasSelectionInfo *cursor; + + GtkWidget *tooltip_window; + gint visibility_notify_id; + GtkWidget *toplevel; + + /* Input context for dead key support */ + GtkIMContext *im_context; + + ECanvasItemGrabCancelled grab_cancelled_cb; + guint grab_cancelled_check_id; + guint32 grab_cancelled_time; + gpointer grab_cancelled_data; +}; + +struct _ECanvasClass { + GnomeCanvasClass parent_class; + + void (*reflow) (ECanvas *canvas); +}; + +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, + GdkDevice *device, + 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 */ |