예제 #1
0
void
gimp_font_list_restore (GimpFontList *list)
{
  PangoFontMap *fontmap;
  PangoContext *context;

  g_return_if_fail (GIMP_IS_FONT_LIST (list));

  fontmap = pango_cairo_font_map_new_for_font_type (CAIRO_FONT_TYPE_FT);
  if (! fontmap)
    g_error ("You are using a Pango that has been built against a cairo "
             "that lacks the Freetype font backend");

  pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (fontmap),
                                       list->yresolution);
  context = pango_font_map_create_context (fontmap);
  g_object_unref (fontmap);

  gimp_container_freeze (GIMP_CONTAINER (list));

  gimp_font_list_load_names (list, PANGO_FONT_MAP (fontmap), context);
  g_object_unref (context);

  gimp_list_sort_by_name (GIMP_LIST (list));

  gimp_container_thaw (GIMP_CONTAINER (list));
}
예제 #2
0
/**
 * pango_cairo_font_map_create_context: (skip):
 * @fontmap: a #PangoCairoFontMap
 *
 * Create a #PangoContext for the given fontmap.
 *
 * Return value: the newly created context; free with g_object_unref().
 *
 * Since: 1.10
 *
 * Deprecated: 1.22: Use pango_font_map_create_context() instead.
 **/
PangoContext *
pango_cairo_font_map_create_context (PangoCairoFontMap *fontmap)
{
  g_return_val_if_fail (PANGO_IS_CAIRO_FONT_MAP (fontmap), NULL);

  return pango_font_map_create_context (PANGO_FONT_MAP (fontmap));
}
예제 #3
0
void gtk_glwidget_create_font(){
	PangoFontDescription *font_desc;
	PangoLayout *layout;
	PangoRectangle log_rect;
	int font_ascent_pango_units;
	int font_descent_pango_units;

	if ( _debug_font_created ) {
		Error( "Programming error: gtk_glwidget_create_font() was already called; "
			   "you must call gtk_glwidget_destroy_font() before creating font again" );
	}
	_debug_font_created = 1;

	font_map = pango_ft2_font_map_new();
	pango_ft2_font_map_set_resolution( PANGO_FT2_FONT_MAP( font_map ), 72, 72 );
	ft2_context = pango_font_map_create_context( PANGO_FONT_MAP( font_map ));

	font_desc = pango_font_description_from_string( font_string );
	pango_font_description_set_size( font_desc, font_height * PANGO_SCALE );
	pango_context_set_font_description( ft2_context, font_desc );
	pango_font_description_free( font_desc );

	layout = pango_layout_new( ft2_context );

	// I don't believe that's standard preprocessor syntax?
#if !PANGO_VERSION_CHECK( 1,22,0 )
	PangoLayoutIter *iter;
	iter = pango_layout_get_iter( layout );
	font_ascent_pango_units = pango_layout_iter_get_baseline( iter );
	pango_layout_iter_free( iter );
#else
	font_ascent_pango_units = pango_layout_get_baseline( layout );
#endif

	pango_layout_get_extents( layout, NULL, &log_rect );
	g_object_unref( G_OBJECT( layout ) );
	font_descent_pango_units = log_rect.height - font_ascent_pango_units;

	font_ascent = PANGO_PIXELS_CEIL( font_ascent_pango_units );
	font_descent = PANGO_PIXELS_CEIL( font_descent_pango_units );
	y_offset_bitmap_render_pango_units = ( font_ascent * PANGO_SCALE ) - font_ascent_pango_units;
}
예제 #4
0
파일: style.c 프로젝트: nzinfo/gnumeric
/**
 * gnm_pango_context_get:
 *
 * Simple wrapper to handle windowless operation
 * Returns: (transfer full):
 **/
PangoContext *
gnm_pango_context_get (void)
{
	if (!context) {
		GdkScreen *screen = gdk_screen_get_default ();

		if (screen != NULL) {
			context = gdk_pango_context_get_for_screen (screen);
		} else {
			if (!fontmap)
				fontmap = pango_cairo_font_map_new ();
			pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (fontmap), 96);
			context = pango_font_map_create_context (PANGO_FONT_MAP (fontmap));
		}
		pango_context_set_language (context, gtk_get_default_language ());
		pango_context_set_base_dir (context, PANGO_DIRECTION_LTR);
	}

	return g_object_ref (context);
}
예제 #5
0
static void
settings_update_fontmap (ClutterSettings *self,
                         guint            stamp)
{
  if (self->backend == NULL)
    return;

#ifdef HAVE_PANGO_FT2
  CLUTTER_NOTE (BACKEND, "Update fontmaps (stamp: %d)", stamp);

  if (self->last_fontconfig_timestamp != stamp)
    {
      ClutterMainContext *context;
      gboolean update_needed = FALSE;

      context = _clutter_context_get_default ();

      /* If there is no font map yet then we don't need to do anything
       * because the config for fontconfig will be read when it is
       * created */
      if (context->font_map)
        {
          PangoFontMap *fontmap = PANGO_FONT_MAP (context->font_map);

          if (PANGO_IS_FC_FONT_MAP (fontmap) &&
              !FcConfigUptoDate (NULL))
            {
              pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (fontmap));

              if (FcInitReinitialize ())
                update_needed = TRUE;
            }
        }

      self->last_fontconfig_timestamp = stamp;

      if (update_needed)
        g_signal_emit_by_name (self->backend, "font-changed");
    }
#endif /* HAVE_PANGO_FT2 */
}
예제 #6
0
int
main (int argc, char **argv)
{
  CoglContext *ctx;
  CoglOnscreen *onscreen;
  CoglFramebuffer *fb;
  GError *error = NULL;
  Data data;
  PangoRectangle hello_label_size;
  float fovy, aspect, z_near, z_2d, z_far;
  CoglDepthState depth_state;
  CoglBool has_swap_notify;

  ctx = cogl_context_new (NULL, &error);
  if (!ctx) {
      fprintf (stderr, "Failed to create context: %s\n", error->message);
      return 1;
  }

  onscreen = cogl_onscreen_new (ctx, 640, 480);
  fb = COGL_FRAMEBUFFER (onscreen);
  data.fb = fb;
  data.framebuffer_width = cogl_framebuffer_get_width (fb);
  data.framebuffer_height = cogl_framebuffer_get_height (fb);

  data.timer = g_timer_new ();

  cogl_onscreen_show (onscreen);

  cogl_framebuffer_set_viewport (fb,
                                 0, 0,
                                 data.framebuffer_width,
                                 data.framebuffer_height);

  fovy = 60; /* y-axis field of view */
  aspect = (float)data.framebuffer_width/(float)data.framebuffer_height;
  z_near = 0.1; /* distance to near clipping plane */
  z_2d = 1000; /* position to 2d plane */
  z_far = 2000; /* distance to far clipping plane */

  cogl_framebuffer_perspective (fb, fovy, aspect, z_near, z_far);

  /* Since the pango renderer emits geometry in pixel/device coordinates
   * and the anti aliasing is implemented with the assumption that the
   * geometry *really* does end up pixel aligned, we setup a modelview
   * matrix so that for geometry in the plane z = 0 we exactly map x
   * coordinates in the range [0,stage_width] and y coordinates in the
   * range [0,stage_height] to the framebuffer extents with (0,0) being
   * the top left.
   *
   * This is roughly what Clutter does for a ClutterStage, but this
   * demonstrates how it is done manually using Cogl.
   */
  cogl_matrix_init_identity (&data.view);
  cogl_matrix_view_2d_in_perspective (&data.view, fovy, aspect, z_near, z_2d,
                                      data.framebuffer_width,
                                      data.framebuffer_height);
  cogl_framebuffer_set_modelview_matrix (fb, &data.view);

  /* Initialize some convenient constants */
  cogl_matrix_init_identity (&identity);
  cogl_color_set_from_4ub (&white, 0xff, 0xff, 0xff, 0xff);

  /* rectangle indices allow the GPU to interpret a list of quads (the
   * faces of our cube) as a list of triangles.
   *
   * Since this is a very common thing to do
   * cogl_get_rectangle_indices() is a convenience function for
   * accessing internal index buffers that can be shared.
   */
  data.indices = cogl_get_rectangle_indices (ctx, 6 /* n_rectangles */);
  data.prim = cogl_primitive_new_p3t2 (ctx, COGL_VERTICES_MODE_TRIANGLES,
                                       G_N_ELEMENTS (vertices),
                                       vertices);
  /* Each face will have 6 indices so we have 6 * 6 indices in total... */
  cogl_primitive_set_indices (data.prim,
                              data.indices,
                              6 * 6);

  /* Load a jpeg crate texture from a file */
  printf ("crate.jpg (CC by-nc-nd http://bit.ly/9kP45T) ShadowRunner27 http://bit.ly/m1YXLh\n");
  data.texture = cogl_texture_new_from_file (COGL_EXAMPLES_DATA "crate.jpg",
                                             COGL_TEXTURE_NO_SLICING,
                                             COGL_PIXEL_FORMAT_ANY,
                                             &error);
  if (!data.texture)
    g_error ("Failed to load texture: %s", error->message);

  /* a CoglPipeline conceptually describes all the state for vertex
   * processing, fragment processing and blending geometry. When
   * drawing the geometry for the crate this pipeline says to sample a
   * single texture during fragment processing... */
  data.crate_pipeline = cogl_pipeline_new (ctx);
  cogl_pipeline_set_layer_texture (data.crate_pipeline, 0, data.texture);

  /* Since the box is made of multiple triangles that will overlap
   * when drawn and we don't control the order they are drawn in, we
   * enable depth testing to make sure that triangles that shouldn't
   * be visible get culled by the GPU. */
  cogl_depth_state_init (&depth_state);
  cogl_depth_state_set_test_enabled (&depth_state, TRUE);

  cogl_pipeline_set_depth_state (data.crate_pipeline, &depth_state, NULL);

  /* Setup a Pango font map and context */

  data.pango_font_map = COGL_PANGO_FONT_MAP (cogl_pango_font_map_new (ctx));

  cogl_pango_font_map_set_use_mipmapping (data.pango_font_map, TRUE);

  data.pango_context =
    pango_font_map_create_context (PANGO_FONT_MAP (data.pango_font_map));

  data.pango_font_desc = pango_font_description_new ();
  pango_font_description_set_family (data.pango_font_desc, "Sans");
  pango_font_description_set_size (data.pango_font_desc, 30 * PANGO_SCALE);

  /* Setup the "Hello Cogl" text */

  data.hello_label = pango_layout_new (data.pango_context);
  pango_layout_set_font_description (data.hello_label, data.pango_font_desc);
  pango_layout_set_text (data.hello_label, "Hello Cogl", -1);

  pango_layout_get_extents (data.hello_label, NULL, &hello_label_size);
  data.hello_label_width = PANGO_PIXELS (hello_label_size.width);
  data.hello_label_height = PANGO_PIXELS (hello_label_size.height);

  data.swap_ready = TRUE;

  has_swap_notify =
    cogl_has_feature (ctx, COGL_FEATURE_ID_SWAP_BUFFERS_EVENT);

  if (has_swap_notify)
    cogl_onscreen_add_swap_buffers_callback (COGL_ONSCREEN (fb),
                                             swap_notify_cb,
                                             &data);

  while (1)
    {
      CoglPollFD *poll_fds;
      int n_poll_fds;
      int64_t timeout;

      if (data.swap_ready)
        {
          paint (&data);
          cogl_onscreen_swap_buffers (COGL_ONSCREEN (fb));
        }

      cogl_poll_get_info (ctx, &poll_fds, &n_poll_fds, &timeout);

      if (!has_swap_notify)
        {
          /* If the winsys doesn't support swap event notification
             then we'll just redraw constantly */
          data.swap_ready = TRUE;
          timeout = 0;
        }

      g_poll ((GPollFD *) poll_fds, n_poll_fds,
              timeout == -1 ? -1 : timeout / 1000);

      cogl_poll_dispatch (ctx, poll_fds, n_poll_fds);
    }

  return 0;
}
예제 #7
0
static PangoContext *
pangoft2_view_get_context (gpointer instance)
{
  return pango_font_map_create_context (PANGO_FONT_MAP (instance));
}