C++ (Cpp) gdk_pango_renderer_set_drawable Examples

Example #1

File: rbgdkpangorenderer.c Project: masaakiaoyagi/ruby-gnome2

static VALUE
rg_set_drawable(VALUE self, VALUE drawable)
{
    gdk_pango_renderer_set_drawable(_SELF(self), 
                                    GDK_DRAWABLE(RVAL2GOBJ(drawable)));
    return self;
}

Example #2

File: fonts.c Project: Zak-Olyarnik/CS-281

static int setup_fonts(void)
{
  int width, height;
  GdkDrawable *drawable=GDK_DRAWABLE(gtk_widget_get_root_window(GTK_WIDGET(GLOBALS->mainwindow)));
  GdkScreen *fonts_screen = gdk_drawable_get_screen (drawable);
  GLOBALS->fonts_renderer = gdk_pango_renderer_get_default (fonts_screen);
  gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (GLOBALS->fonts_renderer), drawable);

  GLOBALS->fonts_gc = gdk_gc_new (drawable);
  gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (GLOBALS->fonts_renderer), GLOBALS->fonts_gc);

  gdk_drawable_get_size (drawable, &width, &height);

  GLOBALS->fonts_context = gdk_pango_context_get_for_screen (fonts_screen);
  GLOBALS->fonts_layout = pango_layout_new (GLOBALS->fonts_context);

  return 0;
}

Example #3

File: gui_util.c Project: bert/fped

void render_text(GdkDrawable *da, GdkGC *gc, int x, int y, double angle,
    const char *s, const char *font, double xalign, double yalign,
    int xmax, int ymax)
{
	GdkScreen *screen;
	PangoRenderer *renderer;
	PangoContext *context;
	PangoLayout *layout;
	PangoFontDescription *desc;
	int width, height;
	PangoMatrix m = PANGO_MATRIX_INIT;
	double f_min, f;

	/* set up the renderer */

	screen = gdk_drawable_get_screen(da);
	renderer = gdk_pango_renderer_get_default(screen);
	gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), da);
	gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), gc);

	/* start preparing the layout */

	context = gdk_pango_context_get_for_screen(screen);
	layout = pango_layout_new(context);
	pango_layout_set_text(layout, s, -1);

	/* apply the font */

	desc = pango_font_description_from_string(font);
	pango_layout_set_font_description(layout, desc);
	pango_font_description_free(desc);

	/* align and position the text */

	pango_layout_get_size(layout, &width, &height);
	f_min = 1.0;
	if (xmax) {
		f = xmax/((double) width/PANGO_SCALE);
		if (f < f_min)
			f_min = f;
	}
	if (ymax) {
		f = ymax/((double) height/PANGO_SCALE);
		if (f < f_min)
			f_min = f;
	}
	if (f_min < MIN_FONT_SCALE)
		f_min = MIN_FONT_SCALE;
	pango_matrix_translate(&m, x, y);
	pango_matrix_rotate(&m, angle);
	pango_matrix_translate(&m,
	    -xalign*f_min*width/PANGO_SCALE,
	    (yalign-1)*f_min*height/PANGO_SCALE);
	pango_matrix_scale(&m, f_min, f_min);

	pango_context_set_matrix(context, &m);
	pango_layout_context_changed(layout);
	pango_renderer_draw_layout(renderer, layout, 0, 0);

	/* clean up renderer */

	gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer), NULL);
	gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer), NULL);

	/* free objects */

	g_object_unref(layout);
	g_object_unref(context);
}