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https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-10 10:50:10 +00:00
gtk-demo: Redo viewing of resources
1. Don't rely on GtkImage as a detector of file type anymore. Instead, hardcode all extensions that are in use. 2. Add a display method for videos.
This commit is contained in:
Benjamin Otte
parent
3eddbdc191
commit
fb33110fd1
@ -532,7 +532,106 @@ fontify (GtkTextBuffer *source_buffer)
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}
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}
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static GtkWidget *create_text (GtkWidget **text_view, gboolean is_source);
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static GtkWidget *
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display_image (const char *resource)
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{
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GtkWidget *sw, *image;
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image = gtk_image_new_from_resource (resource);
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gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
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gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_container_add (GTK_CONTAINER (sw), image);
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return sw;
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}
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static GtkWidget *
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display_text (const char *resource)
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{
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GtkTextBuffer *buffer;
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GtkWidget *textview, *sw;
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GBytes *bytes;
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bytes = g_resources_lookup_data (resource, 0, NULL);
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g_assert (bytes);
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g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
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textview = gtk_text_view_new ();
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g_object_set (textview,
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"left-margin", 20,
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"right-margin", 20,
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"top-margin", 20,
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"bottom-margin", 20,
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NULL);
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gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
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gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
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/* Make it a bit nicer for text. */
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gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
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gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
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gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
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buffer = gtk_text_buffer_new (NULL);
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gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
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if (g_str_has_suffix (resource, ".c"))
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fontify (buffer);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
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g_bytes_unref (bytes);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
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GTK_SHADOW_NONE);
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gtk_container_add (GTK_CONTAINER (sw), textview);
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return sw;
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}
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static GtkWidget *
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display_video (const char *resource)
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{
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GtkWidget *video;
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video = gtk_video_new_for_resource (resource);
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gtk_video_set_loop (GTK_VIDEO (video), TRUE);
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return video;
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}
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static GtkWidget *
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display_nothing (const char *resource)
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{
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GtkWidget *widget;
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char *str;
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str = g_strdup_printf ("The lazy GTK developers forgot to add a way to display the resource '%s'", resource);
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widget = gtk_label_new (str);
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gtk_label_set_line_wrap (GTK_LABEL (widget), TRUE);
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g_free (str);
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return widget;
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}
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static struct {
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const char *extension;
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GtkWidget * (* display_func) (const char *resource);
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} display_funcs[] = {
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{ ".gif", display_image },
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{ ".jpg", display_image },
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{ ".png", display_image },
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{ ".c", display_text },
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{ ".css", display_text },
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{ ".glsl", display_text },
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{ ".h", display_text },
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{ ".txt", display_text },
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{ ".ui", display_text },
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{ ".webm", display_video }
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};
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static void
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add_data_tab (const gchar *demoname)
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@ -540,7 +639,7 @@ add_data_tab (const gchar *demoname)
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gchar *resource_dir, *resource_name;
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gchar **resources;
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GtkWidget *widget, *label;
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guint i;
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guint i, j;
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resource_dir = g_strconcat ("/", demoname, NULL);
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resources = g_resources_enumerate_children (resource_dir, 0, NULL);
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@ -554,58 +653,22 @@ add_data_tab (const gchar *demoname)
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{
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resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
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widget = gtk_image_new_from_resource (resource_name);
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if (gtk_image_get_paintable (GTK_IMAGE (widget)) == NULL)
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for (j = 0; j < G_N_ELEMENTS(display_funcs); j++)
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{
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GBytes *bytes;
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/* So we've used the best API available to figure out it's
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* not an image. Let's try something else then.
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*/
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g_object_ref_sink (widget);
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g_object_unref (widget);
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bytes = g_resources_lookup_data (resource_name, 0, NULL);
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g_assert (bytes);
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if (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
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{
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/* Looks like it parses as text. Dump it into a textview then! */
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GtkTextBuffer *buffer;
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GtkWidget *textview;
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widget = create_text (&textview, FALSE);
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buffer = gtk_text_buffer_new (NULL);
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gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
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if (g_str_has_suffix (resource_name, ".c"))
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fontify (buffer);
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gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
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}
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else
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{
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g_warning ("Don't know how to display resource '%s'", resource_name);
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widget = NULL;
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}
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g_bytes_unref (bytes);
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if (g_str_has_suffix (resource_name, display_funcs[j].extension))
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break;
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}
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if (GTK_IS_IMAGE (widget))
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{
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GtkWidget *sw;
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gtk_widget_set_halign (widget, GTK_ALIGN_CENTER);
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gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_container_add (GTK_CONTAINER (sw), widget);
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widget = sw;
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}
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if (j < G_N_ELEMENTS(display_funcs))
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widget = display_funcs[j].display_func (resource_name);
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else
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widget = display_nothing (resource_name);
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label = gtk_label_new (resources[i]);
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gtk_widget_show (label);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
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gtk_container_child_set (GTK_CONTAINER (notebook),
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GTK_WIDGET (widget),
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widget,
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"tab-expand", TRUE,
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NULL);
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@ -825,49 +888,6 @@ selection_cb (GtkTreeSelection *selection,
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g_free (filename);
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}
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static GtkWidget *
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create_text (GtkWidget **view,
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gboolean is_source)
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{
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GtkWidget *scrolled_window;
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GtkWidget *text_view;
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scrolled_window = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
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GTK_SHADOW_NONE);
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*view = text_view = gtk_text_view_new ();
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g_object_set (text_view,
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"left-margin", 20,
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"right-margin", 20,
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"top-margin", 20,
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"bottom-margin", 20,
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NULL);
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gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
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gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
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gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
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if (is_source)
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{
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gtk_text_view_set_monospace (GTK_TEXT_VIEW (text_view), TRUE);
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gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_NONE);
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}
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else
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{
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/* Make it a bit nicer for text. */
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gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
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gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 2);
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gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (text_view), 2);
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}
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return scrolled_window;
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}
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static void
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populate_model (GtkTreeModel *model)
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{
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