C++ (Cpp) pango_attr_shape_new_with_data Beispiele

Beispiel #1

Datei: um-utils.c Projekt: endlessm/gnome-control-center

static PangoAttrList *
create_shape_attr_list_for_layout (PangoLayout   *layout,
                                   IconShapeData *data)
{
        PangoAttrList *attrs;
        PangoFontMetrics *metrics;
        gint ascent, descent;
        PangoRectangle ink_rect, logical_rect;
        const gchar *p;
        const gchar *text;
        gint placeholder_len;

        /* Get font metrics and prepare fancy shape size */
        metrics = pango_context_get_metrics (pango_layout_get_context (layout),
                                             pango_layout_get_font_description (layout),
                                             NULL);
        ascent = pango_font_metrics_get_ascent (metrics);
        descent = pango_font_metrics_get_descent (metrics);
        pango_font_metrics_unref (metrics);

        logical_rect.x = 0;
        logical_rect.y = - ascent;
        logical_rect.width = ascent + descent;
        logical_rect.height = ascent + descent;

        ink_rect = logical_rect;

        attrs = pango_attr_list_new ();
        text = pango_layout_get_text (layout);
        placeholder_len = strlen (data->placeholder_str);
        for (p = text; (p = strstr (p, data->placeholder_str)); p += placeholder_len) {
                PangoAttribute *attr;

                attr = pango_attr_shape_new_with_data (&ink_rect,
                                                       &logical_rect,
                                                       GUINT_TO_POINTER (g_utf8_get_char (p)),
                                                       NULL, NULL);

                attr->start_index = p - text;
                attr->end_index = attr->start_index + placeholder_len;

                pango_attr_list_insert (attrs, attr);
        }

        return attrs;
}

Beispiel #2

Datei: cairoshape.c Projekt: alexp-sssup/pango

static PangoLayout *
get_layout (cairo_t *cr)
{
  PangoLayout *layout;
  PangoAttrList *attrs;
  PangoRectangle ink_rect     = {1 * PANGO_SCALE, -11 * PANGO_SCALE,  8 * PANGO_SCALE, 10 * PANGO_SCALE};
  PangoRectangle logical_rect = {0 * PANGO_SCALE, -12 * PANGO_SCALE, 10 * PANGO_SCALE, 12 * PANGO_SCALE};
  const char *p;

  /* Create a PangoLayout, set the font and text */
  layout = pango_cairo_create_layout (cr);

  pango_cairo_context_set_shape_renderer (pango_layout_get_context (layout),
					  mini_svg_shape_renderer, NULL, NULL);

  pango_layout_set_text (layout, text, -1);

  attrs = pango_attr_list_new ();

  /* Set gnome shape attributes for all bullets */
  for (p = text; (p = strstr (p, BULLET)); p += strlen (BULLET))
    {
      PangoAttribute *attr;
      
      attr = pango_attr_shape_new_with_data (&ink_rect,
					     &logical_rect,
					     &GnomeFootLogo,
					     NULL, NULL);

      attr->start_index = p - text;
      attr->end_index = attr->start_index + strlen (BULLET);

      pango_attr_list_insert (attrs, attr);
    }

  pango_layout_set_attributes (layout, attrs);
  pango_attr_list_unref (attrs);

  return layout;
}

Beispiel #3

PangoAttrList *
create_fancy_attr_list_for_layout (PangoLayout *layout)
{
  PangoAttrList *attrs;
  PangoFontMetrics *metrics;
  int ascent;
  PangoRectangle ink_rect, logical_rect;
  const char *p;

  /* Get font metrics and prepare fancy shape size */
  metrics = pango_context_get_metrics (pango_layout_get_context (layout),
                                       pango_layout_get_font_description (layout),
                                       NULL);
  ascent = pango_font_metrics_get_ascent (metrics);
  logical_rect.x = 0;
  logical_rect.width = ascent;
  logical_rect.y = -ascent;
  logical_rect.height = ascent;
  ink_rect = logical_rect;
  pango_font_metrics_unref (metrics);

  /* Set fancy shape attributes for all hearts */
  attrs = pango_attr_list_new ();
  for (p = text; (p = strstr (p, HEART)); p += strlen (HEART))
    {
      PangoAttribute *attr;

      attr = pango_attr_shape_new_with_data (&ink_rect,
                                             &logical_rect,
                                             GUINT_TO_POINTER (g_utf8_get_char (p)),
                                             NULL, NULL);

      attr->start_index = p - text;
      attr->end_index = attr->start_index + strlen (HEART);

      pango_attr_list_insert (attrs, attr);
    }

  return attrs;
}