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 Lesser 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 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser 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.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
33 #include "gtkwidget.h"
34 #include "gtkwindow.h"
35 #include "gtksignal.h"
37 #include "gtktooltips.h"
40 #define DEFAULT_DELAY 500 /* Default delay in ms */
42 static void gtk_tooltips_class_init (GtkTooltipsClass *klass);
43 static void gtk_tooltips_init (GtkTooltips *tooltips);
44 static void gtk_tooltips_destroy (GtkObject *object);
46 static gint gtk_tooltips_event_handler (GtkWidget *widget,
48 static void gtk_tooltips_widget_unmap (GtkWidget *widget,
50 static void gtk_tooltips_widget_remove (GtkWidget *widget,
52 static void gtk_tooltips_set_active_widget (GtkTooltips *tooltips,
54 static gint gtk_tooltips_timeout (gpointer data);
56 static gint gtk_tooltips_paint_window (GtkTooltips *tooltips);
57 static void gtk_tooltips_draw_tips (GtkTooltips *tooltips);
59 static GtkDataClass *parent_class;
60 static const gchar *tooltips_data_key = "_GtkTooltipsData";
63 gtk_tooltips_get_type (void)
65 static GtkType tooltips_type = 0;
69 static const GtkTypeInfo tooltips_info =
73 sizeof (GtkTooltipsClass),
74 (GtkClassInitFunc) gtk_tooltips_class_init,
75 (GtkObjectInitFunc) gtk_tooltips_init,
76 /* reserved_1 */ NULL,
77 /* reserved_2 */ NULL,
78 (GtkClassInitFunc) NULL,
81 tooltips_type = gtk_type_unique (GTK_TYPE_DATA, &tooltips_info);
88 gtk_tooltips_class_init (GtkTooltipsClass *class)
90 GtkObjectClass *object_class;
92 object_class = (GtkObjectClass*) class;
93 parent_class = gtk_type_class (GTK_TYPE_DATA);
95 object_class->destroy = gtk_tooltips_destroy;
99 gtk_tooltips_init (GtkTooltips *tooltips)
101 tooltips->tip_window = NULL;
102 tooltips->active_tips_data = NULL;
103 tooltips->tips_data_list = NULL;
105 tooltips->delay = DEFAULT_DELAY;
106 tooltips->enabled = TRUE;
107 tooltips->timer_tag = 0;
111 gtk_tooltips_new (void)
113 return gtk_type_new (GTK_TYPE_TOOLTIPS);
117 gtk_tooltips_destroy_data (GtkTooltipsData *tooltipsdata)
119 g_free (tooltipsdata->tip_text);
120 g_free (tooltipsdata->tip_private);
121 gtk_signal_disconnect_by_data (GTK_OBJECT (tooltipsdata->widget),
122 (gpointer) tooltipsdata);
123 gtk_object_remove_data (GTK_OBJECT (tooltipsdata->widget), tooltips_data_key);
124 gtk_widget_unref (tooltipsdata->widget);
125 g_free (tooltipsdata);
129 gtk_tooltips_destroy (GtkObject *object)
131 GtkTooltips *tooltips = GTK_TOOLTIPS (object);
133 GtkTooltipsData *tooltipsdata;
135 g_return_if_fail (tooltips != NULL);
137 if (tooltips->timer_tag)
139 gtk_timeout_remove (tooltips->timer_tag);
140 tooltips->timer_tag = 0;
143 if (tooltips->tips_data_list != NULL)
145 current = g_list_first (tooltips->tips_data_list);
146 while (current != NULL)
148 tooltipsdata = (GtkTooltipsData*) current->data;
149 current = current->next;
150 gtk_tooltips_widget_remove (tooltipsdata->widget, tooltipsdata);
154 if (tooltips->tip_window)
155 gtk_widget_destroy (tooltips->tip_window);
159 gtk_tooltips_force_window (GtkTooltips *tooltips)
161 g_return_if_fail (tooltips != NULL);
162 g_return_if_fail (GTK_IS_TOOLTIPS (tooltips));
164 if (!tooltips->tip_window)
166 tooltips->tip_window = gtk_window_new (GTK_WINDOW_POPUP);
167 gtk_widget_set_app_paintable (tooltips->tip_window, TRUE);
168 gtk_window_set_policy (GTK_WINDOW (tooltips->tip_window), FALSE, FALSE, TRUE);
169 gtk_widget_set_name (tooltips->tip_window, "gtk-tooltips");
170 gtk_container_set_border_width (GTK_CONTAINER (tooltips->tip_window), 4);
172 gtk_signal_connect_object (GTK_OBJECT (tooltips->tip_window),
174 GTK_SIGNAL_FUNC (gtk_tooltips_paint_window),
175 GTK_OBJECT (tooltips));
177 tooltips->tip_label = gtk_label_new (NULL);
178 gtk_label_set_line_wrap (GTK_LABEL (tooltips->tip_label), TRUE);
179 gtk_misc_set_alignment (GTK_MISC (tooltips->tip_label), 0.5, 0.5);
180 gtk_widget_show (tooltips->tip_label);
182 gtk_container_add (GTK_CONTAINER (tooltips->tip_window), tooltips->tip_label);
184 gtk_signal_connect (GTK_OBJECT (tooltips->tip_window),
186 gtk_widget_destroyed,
187 &tooltips->tip_window);
192 gtk_tooltips_enable (GtkTooltips *tooltips)
194 g_return_if_fail (tooltips != NULL);
196 tooltips->enabled = TRUE;
200 gtk_tooltips_disable (GtkTooltips *tooltips)
202 g_return_if_fail (tooltips != NULL);
204 gtk_tooltips_set_active_widget (tooltips, NULL);
206 tooltips->enabled = FALSE;
210 gtk_tooltips_set_delay (GtkTooltips *tooltips,
213 g_return_if_fail (tooltips != NULL);
215 tooltips->delay = delay;
219 gtk_tooltips_data_get (GtkWidget *widget)
221 g_return_val_if_fail (widget != NULL, NULL);
223 return gtk_object_get_data ((GtkObject*) widget, tooltips_data_key);
227 gtk_tooltips_set_tip (GtkTooltips *tooltips,
229 const gchar *tip_text,
230 const gchar *tip_private)
232 GtkTooltipsData *tooltipsdata;
234 g_return_if_fail (tooltips != NULL);
235 g_return_if_fail (GTK_IS_TOOLTIPS (tooltips));
236 g_return_if_fail (widget != NULL);
238 tooltipsdata = gtk_tooltips_data_get (widget);
240 gtk_tooltips_widget_remove (tooltipsdata->widget, tooltipsdata);
245 tooltipsdata = g_new0 (GtkTooltipsData, 1);
247 if (tooltipsdata != NULL)
249 tooltipsdata->tooltips = tooltips;
250 tooltipsdata->widget = widget;
251 gtk_widget_ref (widget);
253 tooltipsdata->tip_text = g_strdup (tip_text);
254 tooltipsdata->tip_private = g_strdup (tip_private);
256 tooltips->tips_data_list = g_list_append (tooltips->tips_data_list,
258 gtk_signal_connect_after(GTK_OBJECT (widget), "event",
259 (GtkSignalFunc) gtk_tooltips_event_handler,
260 (gpointer) tooltipsdata);
262 gtk_object_set_data (GTK_OBJECT (widget), tooltips_data_key,
263 (gpointer) tooltipsdata);
265 gtk_signal_connect (GTK_OBJECT (widget), "unmap",
266 (GtkSignalFunc) gtk_tooltips_widget_unmap,
267 (gpointer) tooltipsdata);
269 gtk_signal_connect (GTK_OBJECT (widget), "unrealize",
270 (GtkSignalFunc) gtk_tooltips_widget_unmap,
271 (gpointer) tooltipsdata);
273 gtk_signal_connect (GTK_OBJECT (widget), "destroy",
274 (GtkSignalFunc) gtk_tooltips_widget_remove,
275 (gpointer) tooltipsdata);
280 gtk_tooltips_set_colors (GtkTooltips *tooltips,
281 GdkColor *background,
282 GdkColor *foreground)
284 g_return_if_fail (tooltips != NULL);
286 g_warning ("gtk_tooltips_set_colors is deprecated and does nothing.\n"
287 "The colors for tooltips are now taken from the style.");
291 gtk_tooltips_paint_window (GtkTooltips *tooltips)
293 gtk_paint_flat_box(tooltips->tip_window->style, tooltips->tip_window->window,
294 GTK_STATE_NORMAL, GTK_SHADOW_OUT,
295 NULL, GTK_WIDGET(tooltips->tip_window), "tooltip",
302 gtk_tooltips_draw_tips (GtkTooltips * tooltips)
304 GtkRequisition requisition;
307 gint x, y, w, h, scr_w, scr_h;
308 GtkTooltipsData *data;
310 if (!tooltips->tip_window)
311 gtk_tooltips_force_window (tooltips);
312 else if (GTK_WIDGET_VISIBLE (tooltips->tip_window))
313 gtk_widget_hide (tooltips->tip_window);
315 gtk_widget_ensure_style (tooltips->tip_window);
316 style = tooltips->tip_window->style;
318 widget = tooltips->active_tips_data->widget;
320 scr_w = gdk_screen_width ();
321 scr_h = gdk_screen_height ();
323 data = tooltips->active_tips_data;
325 gtk_label_set_text (GTK_LABEL (tooltips->tip_label), data->tip_text);
327 gtk_widget_size_request (tooltips->tip_window, &requisition);
328 w = requisition.width;
329 h = requisition.height;
331 gdk_window_get_pointer (NULL, &x, NULL, NULL);
332 gdk_window_get_origin (widget->window, NULL, &y);
333 if (GTK_WIDGET_NO_WINDOW (widget))
334 y += widget->allocation.y;
339 x -= (x + w) - scr_w;
343 if ((y + h + widget->allocation.height + 4) > scr_h)
346 y = y + widget->allocation.height + 4;
348 gtk_widget_popup (tooltips->tip_window, x, y);
352 gtk_tooltips_timeout (gpointer data)
354 GtkTooltips *tooltips = (GtkTooltips *) data;
356 GDK_THREADS_ENTER ();
358 if (tooltips->active_tips_data != NULL &&
359 GTK_WIDGET_DRAWABLE (tooltips->active_tips_data->widget))
360 gtk_tooltips_draw_tips (tooltips);
362 GDK_THREADS_LEAVE ();
368 gtk_tooltips_set_active_widget (GtkTooltips *tooltips,
371 if (tooltips->tip_window)
372 gtk_widget_hide (tooltips->tip_window);
373 if (tooltips->timer_tag)
375 gtk_timeout_remove (tooltips->timer_tag);
376 tooltips->timer_tag = 0;
379 tooltips->active_tips_data = NULL;
385 for (list = tooltips->tips_data_list; list; list = list->next)
387 GtkTooltipsData *tooltipsdata;
389 tooltipsdata = list->data;
391 if (tooltipsdata->widget == widget &&
392 GTK_WIDGET_DRAWABLE (widget))
394 tooltips->active_tips_data = tooltipsdata;
402 gtk_tooltips_event_handler (GtkWidget *widget,
405 GtkTooltips *tooltips;
406 GtkTooltipsData *old_tips_data;
407 GtkWidget *event_widget;
409 if ((event->type == GDK_LEAVE_NOTIFY || event->type == GDK_ENTER_NOTIFY) &&
410 event->crossing.detail == GDK_NOTIFY_INFERIOR)
413 event_widget = gtk_get_event_widget (event);
414 if (event_widget != widget)
417 old_tips_data = gtk_tooltips_data_get (widget);
418 tooltips = old_tips_data->tooltips;
422 case GDK_MOTION_NOTIFY:
427 case GDK_ENTER_NOTIFY:
428 old_tips_data = tooltips->active_tips_data;
429 if (tooltips->enabled &&
430 (!old_tips_data || old_tips_data->widget != widget))
432 gtk_tooltips_set_active_widget (tooltips, widget);
434 tooltips->timer_tag = gtk_timeout_add (tooltips->delay,
435 gtk_tooltips_timeout,
436 (gpointer) tooltips);
441 gtk_tooltips_set_active_widget (tooltips, NULL);
449 gtk_tooltips_widget_unmap (GtkWidget *widget,
452 GtkTooltipsData *tooltipsdata = (GtkTooltipsData *)data;
453 GtkTooltips *tooltips = tooltipsdata->tooltips;
455 if (tooltips->active_tips_data &&
456 (tooltips->active_tips_data->widget == widget))
457 gtk_tooltips_set_active_widget (tooltips, NULL);
461 gtk_tooltips_widget_remove (GtkWidget *widget,
464 GtkTooltipsData *tooltipsdata = (GtkTooltipsData*) data;
465 GtkTooltips *tooltips = tooltipsdata->tooltips;
467 gtk_tooltips_widget_unmap (widget, data);
468 tooltips->tips_data_list = g_list_remove (tooltips->tips_data_list,
470 gtk_tooltips_destroy_data (tooltipsdata);