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 Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
21 * file for a list of people on the GTK+ Team. See the ChangeLog
22 * files for a list of changes. These files are distributed with
23 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 redraw_event_box (GtkWidget *widget)
33 if (GTK_IS_EVENT_BOX (widget))
35 gtk_widget_queue_draw (widget);
39 widget = gtk_widget_get_parent (widget);
44 combo_changed_cb (GtkWidget *combo,
47 GtkWidget *label = GTK_WIDGET (data);
50 active = gtk_combo_box_get_active (GTK_COMBO_BOX (combo));
51 gtk_label_set_ellipsize (GTK_LABEL (label), (PangoEllipsizeMode)active);
52 redraw_event_box (label);
56 scale_changed_cb (GtkRange *range,
59 double angle = gtk_range_get_value (range);
60 GtkWidget *label = GTK_WIDGET (data);
62 gtk_label_set_angle (GTK_LABEL (label), angle);
63 redraw_event_box (label);
67 ebox_draw_cb (GtkWidget *widget,
72 const double dashes[] = { 6, 18 };
73 GtkAllocation label_allocation;
74 GtkRequisition minimum_size, natural_size;
75 GtkWidget *label = data;
78 cairo_translate (cr, -0.5, -0.5);
79 cairo_set_line_width (cr, 1);
81 cairo_set_source_rgb (cr, 1, 1, 1);
84 gtk_widget_translate_coordinates (label, widget, 0, 0, &x, &y);
85 layout = gtk_widget_create_pango_layout (widget, "");
87 gtk_widget_get_preferred_size (label, &minimum_size, &natural_size);
89 pango_layout_set_markup (layout,
90 "<span color='#c33'>\342\227\217 requisition</span>\n"
91 "<span color='#3c3'>\342\227\217 natural size</span>\n"
92 "<span color='#33c'>\342\227\217 allocation</span>", -1);
94 pango_cairo_show_layout (cr, layout);
95 g_object_unref (layout);
97 gtk_widget_get_allocation (label, &label_allocation);
100 x + 0.5 * (label_allocation.width - minimum_size.width),
101 y + 0.5 * (label_allocation.height - minimum_size.height),
102 minimum_size.width, minimum_size.height);
103 cairo_set_source_rgb (cr, 0.8, 0.2, 0.2);
104 cairo_set_dash (cr, NULL, 0, 0);
107 cairo_rectangle (cr, x, y, label_allocation.width, label_allocation.height);
108 cairo_set_source_rgb (cr, 0.2, 0.2, 0.8);
109 cairo_set_dash (cr, dashes, 2, 0.5);
113 x + 0.5 * (label_allocation.width - natural_size.width),
114 y + 0.5 * (label_allocation.height - natural_size.height),
115 natural_size.width, natural_size.height);
116 cairo_set_source_rgb (cr, 0.2, 0.8, 0.2);
117 cairo_set_dash (cr, dashes, 2, 12.5);
124 main (int argc, char *argv[])
126 GtkWidget *window, *vbox, *label;
127 GtkWidget *combo, *scale, *align, *ebox;
129 gtk_init (&argc, &argv);
131 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
132 gtk_container_set_border_width (GTK_CONTAINER (window), 12);
133 gtk_window_set_default_size (GTK_WINDOW (window), 400, 300);
134 g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
136 vbox = gtk_vbox_new (FALSE, 6);
137 gtk_container_add (GTK_CONTAINER (window), vbox);
139 combo = gtk_combo_box_new_text ();
140 scale = gtk_hscale_new_with_range (0, 360, 1);
141 label = gtk_label_new ("This label may be ellipsized\nto make it fit.");
143 gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "NONE");
144 gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "START");
145 gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "MIDDLE");
146 gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "END");
147 gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 0);
149 align = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
150 gtk_container_add (GTK_CONTAINER (align), label);
152 ebox = gtk_event_box_new ();
153 gtk_widget_set_app_paintable (ebox, TRUE);
154 gtk_container_add (GTK_CONTAINER (ebox), align);
156 gtk_box_pack_start (GTK_BOX (vbox), combo, FALSE, TRUE, 0);
157 gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, TRUE, 0);
158 gtk_box_pack_start (GTK_BOX (vbox), ebox, TRUE, TRUE, 0);
160 g_object_set_data (G_OBJECT (label), "combo", combo);
162 g_signal_connect (combo, "changed", G_CALLBACK (combo_changed_cb), label);
163 g_signal_connect (scale, "value-changed", G_CALLBACK (scale_changed_cb), label);
164 g_signal_connect (ebox, "draw", G_CALLBACK (ebox_draw_cb), label);
166 gtk_widget_show_all (window);