1 /* this file is part of evince, a gnome document viewer
3 * Copyright (C) 2004 Red Hat, Inc.
6 * Jonathan Blandford <jrb@alum.mit.edu>
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 0
33 #define STICKY_REVERT_DELAY 1000
35 struct _EvTooltipPrivate {
37 GTimeVal last_deactivate;
42 G_DEFINE_TYPE (EvTooltip, ev_tooltip, GTK_TYPE_WINDOW)
44 #define EV_TOOLTIP_GET_PRIVATE(object) \
45 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_TOOLTIP, EvTooltipPrivate))
48 ev_tooltip_expose_event (GtkWidget *widget,
49 GdkEventExpose *event)
51 gtk_paint_flat_box (widget->style, widget->window,
52 GTK_STATE_NORMAL, GTK_SHADOW_OUT,
53 NULL, widget, "tooltip", 0, 0,
54 widget->allocation.width, widget->allocation.height);
56 return GTK_WIDGET_CLASS (ev_tooltip_parent_class)->expose_event (widget, event);
60 ev_tooltip_dispose (GObject *object)
62 EvTooltip *tooltip = EV_TOOLTIP (object);
64 if (tooltip->priv->timer_tag) {
65 g_source_remove (tooltip->priv->timer_tag);
66 tooltip->priv->timer_tag = 0;
71 ev_tooltip_class_init (EvTooltipClass *class)
73 GObjectClass *g_object_class = G_OBJECT_CLASS (class);
74 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
76 g_object_class->dispose = ev_tooltip_dispose;
77 widget_class->expose_event = ev_tooltip_expose_event;
79 g_type_class_add_private (g_object_class, sizeof (EvTooltipPrivate));
83 ev_tooltip_init (EvTooltip *tooltip)
85 GtkWidget *window = GTK_WIDGET (tooltip);
88 tooltip->priv = EV_TOOLTIP_GET_PRIVATE (tooltip);
90 gtk_widget_set_name (window, "gtk-tooltips");
92 label = gtk_label_new (NULL);
93 gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
94 gtk_container_add (GTK_CONTAINER (window), label);
95 gtk_container_set_border_width (GTK_CONTAINER (window), 3);
96 tooltip->priv->label = label;
98 gtk_widget_show (label);
101 /* Public functions */
104 ev_tooltip_new (GtkWidget *parent)
109 tooltip = g_object_new (EV_TYPE_TOOLTIP, NULL);
111 GTK_WINDOW (tooltip)->type = GTK_WINDOW_POPUP;
112 EV_TOOLTIP (tooltip)->parent = parent;
114 toplevel = gtk_widget_get_toplevel (parent);
115 gtk_window_set_transient_for (GTK_WINDOW (tooltip), GTK_WINDOW (toplevel));
121 ev_tooltip_set_text (EvTooltip *tooltip, const char *text)
123 gtk_label_set_text (GTK_LABEL (tooltip->priv->label), text);
127 ev_tooltip_set_position (EvTooltip *tooltip, int x, int y)
129 int root_x = 0, root_y = 0;
131 if (tooltip->parent != NULL) {
132 gdk_window_get_origin (tooltip->parent->window, &root_x, &root_y);
135 gtk_window_move (GTK_WINDOW (tooltip), x + root_x, y + root_y);
139 ev_tooltip_recently_shown (EvTooltip *tooltip)
144 g_get_current_time (&now);
146 msec = (now.tv_sec - tooltip->priv->last_deactivate.tv_sec) * 1000 +
147 (now.tv_usec - tooltip->priv->last_deactivate.tv_usec) / 1000;
149 return (msec < STICKY_REVERT_DELAY);
153 ev_tooltip_timeout (gpointer data)
155 GtkWidget *tooltip = GTK_WIDGET (data);
157 gtk_widget_show (tooltip);
163 ev_tooltip_activate (EvTooltip *tooltip)
167 if (tooltip->priv->active) {
170 tooltip->priv->active = TRUE;
173 if (ev_tooltip_recently_shown (tooltip)) {
174 delay = STICKY_DELAY;
176 delay = DEFAULT_DELAY;
179 tooltip->priv->timer_tag = g_timeout_add (delay, ev_tooltip_timeout,
184 ev_tooltip_deactivate (EvTooltip *tooltip)
186 if (!tooltip->priv->active) {
189 tooltip->priv->active = FALSE;
192 if (tooltip->priv->timer_tag) {
193 g_source_remove (tooltip->priv->timer_tag);
194 tooltip->priv->timer_tag = 0;
197 gtk_widget_hide (GTK_WIDGET (tooltip));
199 g_get_current_time (&tooltip->priv->last_deactivate);