239 lines
7.9 KiB
C
239 lines
7.9 KiB
C
/* testbox.c
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*
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* Copyright (C) 2010 Benjamin Otte <otte@gnome.ogr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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/* This is exactly the style information you've been looking for */
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#define GTK_STYLE_PROVIDER_PRIORITY_FORCE G_MAXUINT
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#define DEFAULT_CSS \
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".play {\n" \
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" engine: none;\n" \
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" background-image: none;\n" \
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" background-color: red;\n" \
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" border-color: black;\n" \
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" border-radius: 0;\n" \
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"}\n" \
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"\n" \
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".play:nth-child(even) {\n" \
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" background-color: yellow;\n" \
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" color: green;\n" \
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"}\n" \
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"\n" \
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".play:nth-child(first) {\n" \
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" border-radius: 5 0 0 5;\n" \
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"}\n" \
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"\n" \
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".play:nth-child(last) {\n" \
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" border-radius: 0 5 5 0;\n" \
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"}\n" \
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"\n"
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static void
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show_parsing_error (GtkCssProvider *provider,
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GtkCssSection *section,
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const GError *error,
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GtkTextBuffer *buffer)
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{
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GtkTextIter start, end;
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const char *tag_name;
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gtk_text_buffer_get_iter_at_line_index (buffer,
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&start,
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gtk_css_section_get_start_line (section),
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gtk_css_section_get_start_position (section));
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gtk_text_buffer_get_iter_at_line_index (buffer,
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&end,
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gtk_css_section_get_end_line (section),
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gtk_css_section_get_end_position (section));
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if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
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tag_name = "warning";
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else
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tag_name = "error";
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gtk_text_buffer_apply_tag_by_name (buffer, tag_name, &start, &end);
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}
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static void
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css_text_changed (GtkTextBuffer *buffer,
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GtkCssProvider *provider)
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{
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GtkTextIter start, end;
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char *text;
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gtk_text_buffer_get_start_iter (buffer, &start);
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gtk_text_buffer_get_end_iter (buffer, &end);
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gtk_text_buffer_remove_all_tags (buffer, &start, &end);
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text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
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gtk_css_provider_load_from_data (provider, text, -1, NULL);
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g_free (text);
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gtk_style_context_reset_widgets (gdk_screen_get_default ());
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}
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static void
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remove_widget (GtkWidget *widget)
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{
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gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (widget)), widget);
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}
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static int count = 0;
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static void
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add_button (GtkBox *box)
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{
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GtkWidget* button;
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char *text;
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text = g_strdup_printf ("Remove %d", ++count);
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button = (GtkWidget *)gtk_button_new_with_label (text);
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g_free (text);
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gtk_style_context_add_class (gtk_widget_get_style_context (button), "play");
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g_signal_connect_swapped (button,
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"clicked",
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G_CALLBACK (remove_widget),
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button);
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gtk_widget_show (button);
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gtk_container_add (GTK_CONTAINER (box), button);
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}
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static void
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add_toolbutton (GtkToolbar *toolbar)
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{
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GtkWidget* button;
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char *text;
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text = g_strdup_printf ("Remove %d", ++count);
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button = (GtkWidget *)gtk_tool_button_new (NULL, text);
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g_free (text);
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gtk_style_context_add_class (gtk_widget_get_style_context (button), "play");
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g_signal_connect_swapped (button,
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"clicked",
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G_CALLBACK (remove_widget),
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button);
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gtk_widget_show (button);
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gtk_container_add (GTK_CONTAINER (toolbar), button);
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}
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static void
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set_orientation (GtkSwitch *switch_)
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{
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gtk_widget_set_default_direction (gtk_switch_get_active (switch_) ? GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL);
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}
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gint
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main (gint argc, gchar **argv)
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{
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GtkWidget *window, *main_box, *container, *child;
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GtkWidget *box, *toolbar;
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GtkStyleProvider *provider;
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GtkTextBuffer *css;
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gtk_init (&argc, &argv);
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css = gtk_text_buffer_new (NULL);
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gtk_text_buffer_create_tag (css,
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"warning",
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"background", "rgba(255,255,0,0.3)",
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NULL);
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gtk_text_buffer_create_tag (css,
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"error",
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"background", "rgba(255,0,0,0.3)",
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NULL);
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provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
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gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
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provider,
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GTK_STYLE_PROVIDER_PRIORITY_FORCE);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
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g_signal_connect (window, "delete_event", G_CALLBACK (gtk_main_quit), NULL);
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main_box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add (GTK_CONTAINER (window), main_box);
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toolbar = gtk_toolbar_new ();
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gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), GTK_TOOLBAR_TEXT);
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gtk_box_pack_start (GTK_BOX (main_box), toolbar, FALSE, TRUE, 0);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_box_pack_start (GTK_BOX (main_box), box, FALSE, TRUE, 0);
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container = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_min_content_width (GTK_SCROLLED_WINDOW (container), 200);
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gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (container), 200);
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gtk_box_pack_start (GTK_BOX (main_box), container, TRUE, TRUE, 0);
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child = gtk_text_view_new_with_buffer (css);
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gtk_container_add (GTK_CONTAINER (container), child);
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g_signal_connect (css,
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"changed",
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G_CALLBACK (css_text_changed),
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provider);
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gtk_text_buffer_set_text (css,
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DEFAULT_CSS,
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-1);
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g_signal_connect (provider,
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"parsing-error",
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G_CALLBACK (show_parsing_error),
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gtk_text_view_get_buffer (GTK_TEXT_VIEW (child)));
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container = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_box_pack_start (GTK_BOX (main_box), container, FALSE, TRUE, 0);
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child = gtk_switch_new ();
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gtk_switch_set_active (GTK_SWITCH (child), gtk_widget_get_default_direction () == GTK_TEXT_DIR_LTR);
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g_signal_connect (child,
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"notify::active",
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G_CALLBACK (set_orientation),
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NULL);
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gtk_box_pack_start (GTK_BOX (container), child, FALSE, FALSE, 0);
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child = gtk_label_new ("left-to-right");
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gtk_box_pack_start (GTK_BOX (container), child, FALSE, FALSE, 0);
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child = gtk_button_new_with_label ("Add button");
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g_signal_connect_swapped (child,
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"clicked",
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G_CALLBACK (add_button),
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box);
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gtk_box_pack_end (GTK_BOX (container), child, FALSE, FALSE, 0);
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child = gtk_button_new_with_label ("Add toolbutton");
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g_signal_connect_swapped (child,
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"clicked",
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G_CALLBACK (add_toolbutton),
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toolbar);
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gtk_box_pack_end (GTK_BOX (container), child, FALSE, FALSE, 0);
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add_toolbutton (GTK_TOOLBAR (toolbar));
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add_toolbutton (GTK_TOOLBAR (toolbar));
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add_toolbutton (GTK_TOOLBAR (toolbar));
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add_toolbutton (GTK_TOOLBAR (toolbar));
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add_button (GTK_BOX (box));
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add_button (GTK_BOX (box));
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add_button (GTK_BOX (box));
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add_button (GTK_BOX (box));
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gtk_widget_show_all (window);
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gtk_main ();
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return 0;
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}
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