1 /* this file is part of evince, a gnome document viewer
3 * Copyright (C) 2004 Red Hat, Inc.
6 * Marco Pesenti Gritti <marco@gnome.org>
8 * Evince is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * Evince is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
27 #include "ev-tooltip.h"
29 #include <gtk/gtklabel.h>
31 #define DEFAULT_DELAY 500
32 #define STICKY_DELAY 500
33 #define STICKY_REVERT_DELAY 1000
34 #define SPACE_FROM_CURSOR 10
36 struct _EvTooltipPrivate {
38 GTimeVal last_deactivate;
43 G_DEFINE_TYPE (EvTooltip, ev_tooltip, GTK_TYPE_WINDOW)
45 #define EV_TOOLTIP_GET_PRIVATE(object) \
46 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_TOOLTIP, EvTooltipPrivate))
49 ev_tooltip_expose_event (GtkWidget *widget,
50 GdkEventExpose *event)
52 gtk_paint_flat_box (widget->style, widget->window,
53 GTK_STATE_NORMAL, GTK_SHADOW_OUT,
54 NULL, widget, "tooltip", 0, 0,
55 widget->allocation.width, widget->allocation.height);
57 return GTK_WIDGET_CLASS (ev_tooltip_parent_class)->expose_event (widget, event);
61 ev_tooltip_dispose (GObject *object)
63 EvTooltip *tooltip = EV_TOOLTIP (object);
65 if (tooltip->priv->timer_tag) {
66 g_source_remove (tooltip->priv->timer_tag);
67 tooltip->priv->timer_tag = 0;
72 ev_tooltip_class_init (EvTooltipClass *class)
74 GObjectClass *g_object_class = G_OBJECT_CLASS (class);
75 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
77 g_object_class->dispose = ev_tooltip_dispose;
78 widget_class->expose_event = ev_tooltip_expose_event;
80 g_type_class_add_private (g_object_class, sizeof (EvTooltipPrivate));
84 ev_tooltip_init (EvTooltip *tooltip)
86 GtkWidget *window = GTK_WIDGET (tooltip);
89 tooltip->priv = EV_TOOLTIP_GET_PRIVATE (tooltip);
91 gtk_widget_set_app_paintable (GTK_WIDGET (tooltip), TRUE);
92 gtk_window_set_resizable (GTK_WINDOW (tooltip), FALSE);
93 gtk_widget_set_name (window, "gtk-tooltips");
95 label = gtk_label_new (NULL);
96 gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
97 gtk_container_add (GTK_CONTAINER (window), label);
98 gtk_container_set_border_width (GTK_CONTAINER (window), 3);
99 tooltip->priv->label = label;
101 gtk_widget_show (label);
104 /* Public functions */
107 ev_tooltip_new (GtkWidget *parent)
112 tooltip = g_object_new (EV_TYPE_TOOLTIP, NULL);
114 GTK_WINDOW (tooltip)->type = GTK_WINDOW_POPUP;
115 EV_TOOLTIP (tooltip)->parent = parent;
117 toplevel = gtk_widget_get_toplevel (parent);
118 gtk_window_set_transient_for (GTK_WINDOW (tooltip), GTK_WINDOW (toplevel));
124 ev_tooltip_set_text (EvTooltip *tooltip, const char *text)
126 gtk_label_set_text (GTK_LABEL (tooltip->priv->label), text);
130 ev_tooltip_set_position (EvTooltip *tooltip, int x, int y)
134 if (tooltip->parent != NULL) {
135 gdk_window_get_origin (tooltip->parent->window, &root_x, &root_y);
138 gtk_window_move (GTK_WINDOW (tooltip),
139 x + root_x + SPACE_FROM_CURSOR,
140 y + root_y + SPACE_FROM_CURSOR);
144 ev_tooltip_recently_shown (EvTooltip *tooltip)
149 g_get_current_time (&now);
151 msec = (now.tv_sec - tooltip->priv->last_deactivate.tv_sec) * 1000 +
152 (now.tv_usec - tooltip->priv->last_deactivate.tv_usec) / 1000;
154 return (msec < STICKY_REVERT_DELAY);
158 ev_tooltip_timeout (gpointer data)
160 GtkWidget *tooltip = GTK_WIDGET (data);
162 gtk_widget_show (tooltip);
168 ev_tooltip_activate (EvTooltip *tooltip)
172 if (tooltip->priv->active) {
175 tooltip->priv->active = TRUE;
178 if (ev_tooltip_recently_shown (tooltip)) {
179 delay = STICKY_DELAY;
181 delay = DEFAULT_DELAY;
184 tooltip->priv->timer_tag = g_timeout_add (delay, ev_tooltip_timeout,
189 ev_tooltip_deactivate (EvTooltip *tooltip)
191 if (!tooltip->priv->active) {
194 tooltip->priv->active = FALSE;
197 if (tooltip->priv->timer_tag) {
198 g_source_remove (tooltip->priv->timer_tag);
199 tooltip->priv->timer_tag = 0;
202 gtk_widget_hide (GTK_WIDGET (tooltip));
204 g_get_current_time (&tooltip->priv->last_deactivate);