1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
22 static void gtk_paned_class_init (GtkPanedClass *klass);
23 static void gtk_paned_init (GtkPaned *paned);
24 static void gtk_paned_realize (GtkWidget *widget);
25 static void gtk_paned_map (GtkWidget *widget);
26 static void gtk_paned_unmap (GtkWidget *widget);
27 static void gtk_paned_unrealize (GtkWidget *widget);
28 static gint gtk_paned_expose (GtkWidget *widget,
29 GdkEventExpose *event);
30 static void gtk_paned_add (GtkContainer *container,
32 static void gtk_paned_remove (GtkContainer *container,
34 static void gtk_paned_forall (GtkContainer *container,
35 gboolean include_internals,
37 gpointer callback_data);
38 static GtkType gtk_paned_child_type (GtkContainer *container);
41 static GtkContainerClass *parent_class = NULL;
45 gtk_paned_get_type (void)
47 static GtkType paned_type = 0;
51 static const GtkTypeInfo paned_info =
55 sizeof (GtkPanedClass),
56 (GtkClassInitFunc) gtk_paned_class_init,
57 (GtkObjectInitFunc) gtk_paned_init,
58 /* reserved_1 */ NULL,
59 /* reserved_2 */ NULL,
60 (GtkClassInitFunc) NULL,
63 paned_type = gtk_type_unique (GTK_TYPE_CONTAINER, &paned_info);
70 gtk_paned_class_init (GtkPanedClass *class)
72 GtkObjectClass *object_class;
73 GtkWidgetClass *widget_class;
74 GtkContainerClass *container_class;
76 object_class = (GtkObjectClass*) class;
77 widget_class = (GtkWidgetClass*) class;
78 container_class = (GtkContainerClass*) class;
80 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
82 widget_class->realize = gtk_paned_realize;
83 widget_class->map = gtk_paned_map;
84 widget_class->unmap = gtk_paned_unmap;
85 widget_class->unrealize = gtk_paned_unrealize;
86 widget_class->expose_event = gtk_paned_expose;
88 container_class->add = gtk_paned_add;
89 container_class->remove = gtk_paned_remove;
90 container_class->forall = gtk_paned_forall;
91 container_class->child_type = gtk_paned_child_type;
95 gtk_paned_child_type (GtkContainer *container)
97 if (!GTK_PANED (container)->child1 || !GTK_PANED (container)->child2)
98 return GTK_TYPE_WIDGET;
100 return GTK_TYPE_NONE;
104 gtk_paned_init (GtkPaned *paned)
106 GTK_WIDGET_UNSET_FLAGS (paned, GTK_NO_WINDOW);
108 paned->child1 = NULL;
109 paned->child2 = NULL;
110 paned->handle = NULL;
111 paned->xor_gc = NULL;
113 paned->handle_size = 10;
114 paned->gutter_size = 6;
115 paned->position_set = FALSE;
116 paned->in_drag = FALSE;
118 paned->handle_xpos = -1;
119 paned->handle_ypos = -1;
124 gtk_paned_realize (GtkWidget *widget)
127 GdkWindowAttr attributes;
128 gint attributes_mask;
130 g_return_if_fail (widget != NULL);
131 g_return_if_fail (GTK_IS_PANED (widget));
133 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
134 paned = GTK_PANED (widget);
136 attributes.x = widget->allocation.x;
137 attributes.y = widget->allocation.y;
138 attributes.width = widget->allocation.width;
139 attributes.height = widget->allocation.height;
140 attributes.window_type = GDK_WINDOW_CHILD;
141 attributes.wclass = GDK_INPUT_OUTPUT;
142 attributes.visual = gtk_widget_get_visual (widget);
143 attributes.colormap = gtk_widget_get_colormap (widget);
144 attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
145 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
147 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
148 &attributes, attributes_mask);
149 gdk_window_set_user_data (widget->window, paned);
151 attributes.x = paned->handle_xpos;
152 attributes.y = paned->handle_ypos;
153 attributes.width = paned->handle_size;
154 attributes.height = paned->handle_size;
155 attributes.cursor = gdk_cursor_new (GDK_CROSS);
156 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
157 GDK_BUTTON_RELEASE_MASK |
158 GDK_POINTER_MOTION_MASK |
159 GDK_POINTER_MOTION_HINT_MASK);
160 attributes_mask |= GDK_WA_CURSOR;
162 paned->handle = gdk_window_new (widget->window,
163 &attributes, attributes_mask);
164 gdk_window_set_user_data (paned->handle, paned);
165 gdk_cursor_destroy (attributes.cursor);
167 widget->style = gtk_style_attach (widget->style, widget->window);
169 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
170 gtk_style_set_background (widget->style, paned->handle, GTK_STATE_NORMAL);
172 gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
174 gdk_window_show (paned->handle);
178 gtk_paned_map (GtkWidget *widget)
182 g_return_if_fail (widget != NULL);
183 g_return_if_fail (GTK_IS_PANED (widget));
185 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
186 paned = GTK_PANED (widget);
188 gdk_window_show (widget->window);
191 GTK_WIDGET_VISIBLE (paned->child1) &&
192 !GTK_WIDGET_MAPPED (paned->child1))
193 gtk_widget_map (paned->child1);
195 GTK_WIDGET_VISIBLE (paned->child2) &&
196 !GTK_WIDGET_MAPPED (paned->child2))
197 gtk_widget_map (paned->child2);
201 gtk_paned_unmap (GtkWidget *widget)
203 g_return_if_fail (widget != NULL);
204 g_return_if_fail (GTK_IS_PANED (widget));
206 GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
208 gdk_window_hide (widget->window);
212 gtk_paned_unrealize (GtkWidget *widget)
216 g_return_if_fail (widget != NULL);
217 g_return_if_fail (GTK_IS_PANED (widget));
219 paned = GTK_PANED (widget);
223 gdk_gc_destroy (paned->xor_gc);
224 paned->xor_gc = NULL;
229 gdk_window_set_user_data (paned->handle, NULL);
230 gdk_window_destroy (paned->handle);
231 paned->handle = NULL;
234 if (GTK_WIDGET_CLASS (parent_class)->unrealize)
235 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
239 gtk_paned_expose (GtkWidget *widget,
240 GdkEventExpose *event)
243 GdkEventExpose child_event;
245 g_return_val_if_fail (widget != NULL, FALSE);
246 g_return_val_if_fail (GTK_IS_PANED (widget), FALSE);
247 g_return_val_if_fail (event != NULL, FALSE);
249 if (GTK_WIDGET_DRAWABLE (widget))
251 paned = GTK_PANED (widget);
253 /* An expose event for the handle */
254 if (event->window == paned->handle)
256 gtk_paint_box (widget->style, paned->handle,
257 GTK_WIDGET_STATE(widget),
259 &event->area, widget, "paned",
261 paned->handle_size, paned->handle_size);
265 child_event = *event;
267 GTK_WIDGET_NO_WINDOW (paned->child1) &&
268 gtk_widget_intersect (paned->child1, &event->area, &child_event.area))
269 gtk_widget_event (paned->child1, (GdkEvent*) &child_event);
272 GTK_WIDGET_NO_WINDOW (paned->child2) &&
273 gtk_widget_intersect (paned->child2, &event->area, &child_event.area))
274 gtk_widget_event (paned->child2, (GdkEvent*) &child_event);
276 /* redraw the groove if necessary */
277 if (gdk_rectangle_intersect (&paned->groove_rectangle,
280 gtk_widget_draw (widget, &child_event.area);
287 gtk_paned_add1 (GtkPaned *paned,
290 g_return_if_fail (widget != NULL);
294 gtk_widget_set_parent (widget, GTK_WIDGET (paned));
296 if (GTK_WIDGET_VISIBLE (widget->parent))
298 if (GTK_WIDGET_REALIZED (widget->parent) &&
299 !GTK_WIDGET_REALIZED (widget))
300 gtk_widget_realize (widget);
302 if (GTK_WIDGET_MAPPED (widget->parent) &&
303 !GTK_WIDGET_MAPPED (widget))
304 gtk_widget_map (widget);
307 paned->child1 = widget;
309 if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
310 gtk_widget_queue_resize (widget);
315 gtk_paned_add2 (GtkPaned *paned,
318 g_return_if_fail (widget != NULL);
322 gtk_widget_set_parent (widget, GTK_WIDGET (paned));
324 if (GTK_WIDGET_VISIBLE (widget->parent))
326 if (GTK_WIDGET_REALIZED (widget->parent) &&
327 !GTK_WIDGET_REALIZED (widget))
328 gtk_widget_realize (widget);
330 if (GTK_WIDGET_MAPPED (widget->parent) &&
331 !GTK_WIDGET_MAPPED (widget))
332 gtk_widget_map (widget);
335 paned->child2 = widget;
337 if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (paned))
338 gtk_widget_queue_resize (widget);
343 gtk_paned_add (GtkContainer *container,
348 g_return_if_fail (container != NULL);
349 g_return_if_fail (GTK_IS_PANED (container));
350 g_return_if_fail (widget != NULL);
352 paned = GTK_PANED (container);
355 gtk_paned_add1 (GTK_PANED (container),widget);
356 else if (!paned->child2)
357 gtk_paned_add2 (GTK_PANED (container),widget);
361 gtk_paned_remove (GtkContainer *container,
365 gboolean was_visible;
367 g_return_if_fail (container != NULL);
368 g_return_if_fail (GTK_IS_PANED (container));
369 g_return_if_fail (widget != NULL);
371 paned = GTK_PANED (container);
372 was_visible = GTK_WIDGET_VISIBLE (widget);
374 if (paned->child1 == widget)
376 gtk_widget_unparent (widget);
378 paned->child1 = NULL;
380 if (was_visible && GTK_WIDGET_VISIBLE (container))
381 gtk_widget_queue_resize (GTK_WIDGET (container));
383 else if (paned->child2 == widget)
385 gtk_widget_unparent (widget);
387 paned->child2 = NULL;
389 if (was_visible && GTK_WIDGET_VISIBLE (container))
390 gtk_widget_queue_resize (GTK_WIDGET (container));
395 gtk_paned_forall (GtkContainer *container,
396 gboolean include_internals,
397 GtkCallback callback,
398 gpointer callback_data)
402 g_return_if_fail (container != NULL);
403 g_return_if_fail (GTK_IS_PANED (container));
404 g_return_if_fail (callback != NULL);
406 paned = GTK_PANED (container);
409 (* callback) (paned->child1, callback_data);
411 (* callback) (paned->child2, callback_data);
415 gtk_paned_set_handle_size (GtkPaned *paned,
420 g_return_if_fail (paned != NULL);
421 g_return_if_fail (GTK_IS_PANED (paned));
425 gdk_window_get_geometry (paned->handle, &x, &y, NULL, NULL, NULL);
426 gdk_window_move_resize (paned->handle,
427 x + paned->handle_size / 2 - size / 2,
428 y + paned->handle_size / 2 - size / 2,
431 paned->handle_size = size;
435 gtk_paned_set_gutter_size (GtkPaned *paned,
438 g_return_if_fail (paned != NULL);
439 g_return_if_fail (GTK_IS_PANED (paned));
441 paned->gutter_size = size;
443 if (GTK_WIDGET_VISIBLE (GTK_WIDGET (paned)))
444 gtk_widget_queue_resize (GTK_WIDGET (paned));