139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
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/* Benchmark/Themes
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*
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* This demo continuously switches themes, like some of you.
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*
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* Warning: This demo involves rapidly flashing changes and may
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* be hazardous to photosensitive viewers.
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*/
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#include <gtk/gtk.h>
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static guint tick_cb;
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typedef struct {
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const char *name;
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gboolean dark;
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} Theme;
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static Theme themes[] = {
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{ "Adwaita", FALSE },
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{ "Adwaita", TRUE },
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{ "HighContrast", FALSE },
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{ "HighContrastInverse", FALSE }
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};
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static int theme;
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static gboolean
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change_theme (GtkWidget *widget,
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GdkFrameClock *frame_clock,
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gpointer data)
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{
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GtkWidget *label = data;
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Theme next = themes[theme++ % G_N_ELEMENTS (themes)];
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char *name;
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g_object_set (gtk_settings_get_default (),
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"gtk-theme-name", next.name,
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"gtk-application-prefer-dark-theme", next.dark,
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NULL);
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name = g_strconcat (next.name, next.dark ? " (dark)" : NULL, NULL);
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gtk_window_set_title (GTK_WINDOW (widget), name);
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g_free (name);
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if (frame_clock)
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{
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char *fps;
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fps = g_strdup_printf ("%.2f fps", gdk_frame_clock_get_fps (frame_clock));
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gtk_label_set_label (GTK_LABEL (label), fps);
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g_free (fps);
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}
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else
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gtk_label_set_label (GTK_LABEL (label), "");
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return G_SOURCE_CONTINUE;
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}
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static void
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toggle_cycle (GObject *button,
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GParamSpec *pspec,
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gpointer data)
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{
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GtkWidget *warning = data;
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gboolean active;
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GtkWidget *window;
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g_object_get (button, "active", &active, NULL);
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window = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_WINDOW);
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if (active && !tick_cb)
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{
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gtk_window_present (GTK_WINDOW (warning));
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}
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else if (!active && tick_cb)
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{
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gtk_widget_remove_tick_callback (window, tick_cb);
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tick_cb = 0;
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}
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}
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static void
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warning_closed (GtkDialog *warning,
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int response_id,
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gpointer data)
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{
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GtkWidget *window;
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GtkWidget *button;
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gtk_widget_set_visible (GTK_WIDGET (warning), FALSE);
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window = gtk_widget_get_ancestor (GTK_WIDGET (data), GTK_TYPE_WINDOW);
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button = GTK_WIDGET (g_object_get_data (G_OBJECT (window), "button"));
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if (response_id == GTK_RESPONSE_OK)
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tick_cb = gtk_widget_add_tick_callback (window, change_theme, data, NULL);
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else
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), FALSE);
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}
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GtkWidget *
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do_themes (GtkWidget *do_widget)
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{
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static GtkWidget *window = NULL;
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if (!window)
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{
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GtkBuilder *builder;
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GtkWidget *button;
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GtkWidget *label;
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GtkWidget *warning;
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builder = gtk_builder_new_from_resource ("/themes/themes.ui");
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window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
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g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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label = GTK_WIDGET (gtk_builder_get_object (builder, "fps"));
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warning = GTK_WIDGET (gtk_builder_get_object (builder, "warning"));
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g_signal_connect (warning, "response", G_CALLBACK (warning_closed), label);
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button = GTK_WIDGET (gtk_builder_get_object (builder, "toggle"));
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g_object_set_data (G_OBJECT (window), "button", button);
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g_signal_connect (button, "notify::active", G_CALLBACK (toggle_cycle), warning);
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gtk_widget_realize (window);
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g_object_unref (builder);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_set_visible (window, TRUE);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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