1 /* testbox.c
2 *
3 * Copyright (C) 2010 Benjamin Otte <otte@gnome.ogr>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #include "config.h"
19 #include <gtk/gtk.h>
20
21 /* This is exactly the style information you've been looking for */
22 #define GTK_STYLE_PROVIDER_PRIORITY_FORCE G_MAXUINT
23
24 #define DEFAULT_CSS \
25 ".play {\n" \
26 " engine: none;\n" \
27 " background-image: none;\n" \
28 " background-color: red;\n" \
29 " border-color: black;\n" \
30 " border-radius: 0;\n" \
31 "}\n" \
32 "\n" \
33 ".play:nth-child(even) {\n" \
34 " background-color: yellow;\n" \
35 " color: green;\n" \
36 "}\n" \
37 "\n" \
38 ".play:nth-child(first) {\n" \
39 " border-radius: 5 0 0 5;\n" \
40 "}\n" \
41 "\n" \
42 ".play:nth-child(last) {\n" \
43 " border-radius: 0 5 5 0;\n" \
44 "}\n" \
45 "\n"
46
47 static void
show_parsing_error(GtkCssProvider * provider,GtkCssSection * section,const GError * error,GtkTextBuffer * buffer)48 show_parsing_error (GtkCssProvider *provider,
49 GtkCssSection *section,
50 const GError *error,
51 GtkTextBuffer *buffer)
52 {
53 GtkTextIter start, end;
54 const char *tag_name;
55
56 gtk_text_buffer_get_iter_at_line_index (buffer,
57 &start,
58 gtk_css_section_get_start_line (section),
59 gtk_css_section_get_start_position (section));
60 gtk_text_buffer_get_iter_at_line_index (buffer,
61 &end,
62 gtk_css_section_get_end_line (section),
63 gtk_css_section_get_end_position (section));
64
65 if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
66 tag_name = "warning";
67 else
68 tag_name = "error";
69
70 gtk_text_buffer_apply_tag_by_name (buffer, tag_name, &start, &end);
71 }
72
73 static void
css_text_changed(GtkTextBuffer * buffer,GtkCssProvider * provider)74 css_text_changed (GtkTextBuffer *buffer,
75 GtkCssProvider *provider)
76 {
77 GtkTextIter start, end;
78 char *text;
79
80 gtk_text_buffer_get_start_iter (buffer, &start);
81 gtk_text_buffer_get_end_iter (buffer, &end);
82 gtk_text_buffer_remove_all_tags (buffer, &start, &end);
83
84 text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
85 gtk_css_provider_load_from_data (provider, text, -1, NULL);
86 g_free (text);
87
88 gtk_style_context_reset_widgets (gdk_screen_get_default ());
89 }
90
91 static void
remove_widget(GtkWidget * widget)92 remove_widget (GtkWidget *widget)
93 {
94 gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (widget)), widget);
95 }
96
97 static int count = 0;
98
99 static void
add_button(GtkBox * box)100 add_button (GtkBox *box)
101 {
102 GtkWidget* button;
103 char *text;
104
105 text = g_strdup_printf ("Remove %d", ++count);
106 button = (GtkWidget *)gtk_button_new_with_label (text);
107 g_free (text);
108 gtk_style_context_add_class (gtk_widget_get_style_context (button), "play");
109 g_signal_connect_swapped (button,
110 "clicked",
111 G_CALLBACK (remove_widget),
112 button);
113 gtk_widget_show (button);
114 gtk_container_add (GTK_CONTAINER (box), button);
115 }
116
117 static void
add_toolbutton(GtkToolbar * toolbar)118 add_toolbutton (GtkToolbar *toolbar)
119 {
120 GtkWidget* button;
121 char *text;
122
123 text = g_strdup_printf ("Remove %d", ++count);
124 button = (GtkWidget *)gtk_tool_button_new (NULL, text);
125 g_free (text);
126 gtk_style_context_add_class (gtk_widget_get_style_context (button), "play");
127 g_signal_connect_swapped (button,
128 "clicked",
129 G_CALLBACK (remove_widget),
130 button);
131 gtk_widget_show (button);
132 gtk_container_add (GTK_CONTAINER (toolbar), button);
133 }
134
135 static void
set_orientation(GtkSwitch * switch_)136 set_orientation (GtkSwitch *switch_)
137 {
138 gtk_widget_set_default_direction (gtk_switch_get_active (switch_) ? GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL);
139 }
140
141 gint
main(gint argc,gchar ** argv)142 main (gint argc, gchar **argv)
143 {
144 GtkWidget *window, *main_box, *container, *child;
145 GtkWidget *box, *toolbar;
146 GtkStyleProvider *provider;
147 GtkTextBuffer *css;
148
149 gtk_init (&argc, &argv);
150
151 css = gtk_text_buffer_new (NULL);
152 gtk_text_buffer_create_tag (css,
153 "warning",
154 "background", "rgba(255,255,0,0.3)",
155 NULL);
156 gtk_text_buffer_create_tag (css,
157 "error",
158 "background", "rgba(255,0,0,0.3)",
159 NULL);
160
161 provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
162 gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
163 provider,
164 GTK_STYLE_PROVIDER_PRIORITY_FORCE);
165
166 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
167
168 g_signal_connect (window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
169 g_signal_connect (window, "delete_event", G_CALLBACK (gtk_main_quit), NULL);
170
171 main_box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
172 gtk_container_add (GTK_CONTAINER (window), main_box);
173
174 toolbar = gtk_toolbar_new ();
175 gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), GTK_TOOLBAR_TEXT);
176 gtk_box_pack_start (GTK_BOX (main_box), toolbar, FALSE, TRUE, 0);
177
178 box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
179 gtk_box_pack_start (GTK_BOX (main_box), box, FALSE, TRUE, 0);
180
181 container = gtk_scrolled_window_new (NULL, NULL);
182 gtk_scrolled_window_set_min_content_width (GTK_SCROLLED_WINDOW (container), 200);
183 gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (container), 200);
184 gtk_box_pack_start (GTK_BOX (main_box), container, TRUE, TRUE, 0);
185 child = gtk_text_view_new_with_buffer (css);
186 gtk_container_add (GTK_CONTAINER (container), child);
187 g_signal_connect (css,
188 "changed",
189 G_CALLBACK (css_text_changed),
190 provider);
191 gtk_text_buffer_set_text (css,
192 DEFAULT_CSS,
193 -1);
194 g_signal_connect (provider,
195 "parsing-error",
196 G_CALLBACK (show_parsing_error),
197 gtk_text_view_get_buffer (GTK_TEXT_VIEW (child)));
198
199 container = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
200 gtk_box_pack_start (GTK_BOX (main_box), container, FALSE, TRUE, 0);
201 child = gtk_switch_new ();
202 gtk_switch_set_active (GTK_SWITCH (child), gtk_widget_get_default_direction () == GTK_TEXT_DIR_LTR);
203 g_signal_connect (child,
204 "notify::active",
205 G_CALLBACK (set_orientation),
206 NULL);
207 gtk_box_pack_start (GTK_BOX (container), child, FALSE, FALSE, 0);
208 child = gtk_label_new ("left-to-right");
209 gtk_box_pack_start (GTK_BOX (container), child, FALSE, FALSE, 0);
210 child = gtk_button_new_with_label ("Add button");
211 g_signal_connect_swapped (child,
212 "clicked",
213 G_CALLBACK (add_button),
214 box);
215 gtk_box_pack_end (GTK_BOX (container), child, FALSE, FALSE, 0);
216 child = gtk_button_new_with_label ("Add toolbutton");
217 g_signal_connect_swapped (child,
218 "clicked",
219 G_CALLBACK (add_toolbutton),
220 toolbar);
221 gtk_box_pack_end (GTK_BOX (container), child, FALSE, FALSE, 0);
222
223 add_toolbutton (GTK_TOOLBAR (toolbar));
224 add_toolbutton (GTK_TOOLBAR (toolbar));
225 add_toolbutton (GTK_TOOLBAR (toolbar));
226 add_toolbutton (GTK_TOOLBAR (toolbar));
227
228 add_button (GTK_BOX (box));
229 add_button (GTK_BOX (box));
230 add_button (GTK_BOX (box));
231 add_button (GTK_BOX (box));
232
233 gtk_widget_show_all (window);
234
235 gtk_main ();
236
237 return 0;
238 }
239