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ea15e4c7f0
It should be possible render a single PangoLayout with different colors without recalculating the layout. This was not working because the color used at the first edit was being stored in the display list. This broke changing the opacity on a ClutterText. Now each node in the display list has a 'color override' flag which marks whether it should use the base color or not. The base color is now passed in from _cogl_pango_display_list_render_texture. The alpha value is always taken from the base color.
71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Neil Roberts <neil@linux.intel.com>
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*
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* Copyright (C) 2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __COGL_PANGO_DISPLAY_LIST_H__
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#define __COGL_PANGO_DISPLAY_LIST_H__
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#include <glib.h>
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#include <cogl/cogl.h>
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G_BEGIN_DECLS
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typedef struct _CoglPangoDisplayList CoglPangoDisplayList;
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CoglPangoDisplayList *_cogl_pango_display_list_new (void);
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void _cogl_pango_display_list_set_color_override (CoglPangoDisplayList *dl,
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const CoglColor *color);
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void _cogl_pango_display_list_remove_color_override (CoglPangoDisplayList *dl);
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void _cogl_pango_display_list_add_texture (CoglPangoDisplayList *dl,
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CoglHandle texture,
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float x_1, float y_1,
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float x_2, float y_2,
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float tx_1, float ty_1,
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float tx_2, float ty_2);
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void _cogl_pango_display_list_add_rectangle (CoglPangoDisplayList *dl,
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float x_1, float y_1,
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float x_2, float y_2);
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void _cogl_pango_display_list_add_trapezoid (CoglPangoDisplayList *dl,
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float y_1,
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float x_11,
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float x_21,
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float y_2,
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float x_12,
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float x_22);
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void _cogl_pango_display_list_render (CoglPangoDisplayList *dl,
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const CoglColor *color,
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CoglHandle glyph_material,
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CoglHandle solid_material);
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void _cogl_pango_display_list_clear (CoglPangoDisplayList *dl);
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void _cogl_pango_display_list_free (CoglPangoDisplayList *dl);
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G_END_DECLS
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#endif /* __COGL_PANGO_DISPLAY_LIST_H__ */
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