diff options
Diffstat (limited to 'demos/gtk-demo/foreigndrawing.c')
| -rw-r--r-- | demos/gtk-demo/foreigndrawing.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/demos/gtk-demo/foreigndrawing.c b/demos/gtk-demo/foreigndrawing.c index 5a7a3f32d1..db4d2462f2 100644 --- a/demos/gtk-demo/foreigndrawing.c +++ b/demos/gtk-demo/foreigndrawing.c @@ -6,7 +6,8 @@ * * This demo shows how to use GtkStyleContext and the gtk_render_ APIs * to achieve this. Note that this is a very simple, non-interactive - * example. + * example. Also note that the application is responsible for choosing + * suitable sizes for the rendered components. */ #include <gtk/gtk.h> @@ -271,6 +272,40 @@ draw_radio (GtkWidget *widget, } +static void +draw_progress (GtkWidget *widget, + cairo_t *cr, + gint x, + gint y, + gint width, + gint height, + gint position) +{ + GtkStyleContext *bar_context; + GtkStyleContext *trough_context; + GtkStyleContext *progress_context; + + /* This information is taken from the GtkProgressBar docs, see "CSS nodes" */ + const char *path[3] = { + "progressbar", + "trough", + "progress" + }; + + bar_context = get_style (NULL, path[0]); + trough_context = get_style (bar_context, path[1]); + progress_context = get_style (trough_context, path[2]); + + gtk_render_background (trough_context, cr, x, y, width, height); + gtk_render_frame (trough_context, cr, x, y, width, height); + gtk_render_background (progress_context, cr, x, y, position, height); + gtk_render_frame (progress_context, cr, x, y, position, height); + + g_object_unref (progress_context); + g_object_unref (trough_context); + g_object_unref (bar_context); +} + static gboolean draw_cb (GtkWidget *widget, cairo_t *cr) @@ -295,6 +330,7 @@ draw_cb (GtkWidget *widget, draw_check (widget, cr, 40, 130, GTK_STATE_FLAG_CHECKED); draw_radio (widget, cr, 70, 130, GTK_STATE_FLAG_NORMAL); draw_radio (widget, cr, 100, 130, GTK_STATE_FLAG_CHECKED); + draw_progress (widget, cr, 10, 160, width - 20, 6, 50); return FALSE; } |