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3a4a858ce3
This macro was introduced so as to be able to be built without GLib. However, this feature was long ago removed, and in Mutter we depend on it anyway, so let's get rid of it in favor of more consistency.
300 lines
9.4 KiB
C
300 lines
9.4 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2008 OpenedHand
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* Copyright (C) 2012 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Neil Roberts <neil@linux.intel.com>
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* Robert Bragg <robert@linux.intel.com>
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* Matthew Allum <mallum@openedhand.com>
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*/
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#ifndef __COGL_PANGO_H__
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#define __COGL_PANGO_H__
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#include <glib-object.h>
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#include <pango/pango.h>
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#include <pango/pangocairo.h>
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/* XXX: Currently this header may be included both as an internal
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* header (within the cogl-pango implementation) and as a public
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* header.
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*
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* Since <cogl/cogl.h> should not be included for internal use we
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* determine the current context and switch between including cogl.h
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* or specific internal cogl headers here...
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*/
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#ifndef COGL_COMPILATION
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#include <cogl/cogl.h>
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#else
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#include "cogl/cogl-context.h"
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#include "cogl/cogl-macros.h"
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#endif
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G_BEGIN_DECLS
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/* It's too difficult to actually subclass the pango cairo font
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* map. Instead we just make a fake set of macros that actually just
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* directly use the original type
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*/
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#define COGL_PANGO_TYPE_FONT_MAP PANGO_TYPE_CAIRO_FONT_MAP
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#define COGL_PANGO_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), COGL_PANGO_TYPE_FONT_MAP, CoglPangoFontMap))
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#define COGL_PANGO_IS_FONT_MAP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), COGL_PANGO_TYPE_FONT_MAP))
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typedef PangoCairoFontMap CoglPangoFontMap;
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/**
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* cogl_pango_font_map_new:
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*
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* Creates a new font map.
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*
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* Return value: (transfer full): the newly created #PangoFontMap
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*
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* Since: 1.14
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*/
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PangoFontMap *
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cogl_pango_font_map_new (void);
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/**
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* cogl_pango_font_map_create_context:
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* @font_map: a #CoglPangoFontMap
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*
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* Create a #PangoContext for the given @font_map.
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*
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* Returns: (transfer full): the newly created context: free with g_object_unref().
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*/
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PangoContext *
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cogl_pango_font_map_create_context (CoglPangoFontMap *font_map);
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/**
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* cogl_pango_font_map_set_resolution:
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* @font_map: a #CoglPangoFontMap
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* @dpi: The resolution in "dots per inch". (Physical inches aren't
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* actually involved; the terminology is conventional.)
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*
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* Sets the resolution for the @font_map. This is a scale factor
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* between points specified in a #PangoFontDescription and Cogl units.
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* The default value is %96, meaning that a 10 point font will be 13
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* units high. (10 * 96. / 72. = 13.3).
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*
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* Since: 1.14
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*/
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void
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cogl_pango_font_map_set_resolution (CoglPangoFontMap *font_map,
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double dpi);
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/**
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* cogl_pango_font_map_clear_glyph_cache:
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* @font_map: a #CoglPangoFontMap
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*
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* Clears the glyph cache for @font_map.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_font_map_clear_glyph_cache (CoglPangoFontMap *font_map);
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/**
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* cogl_pango_ensure_glyph_cache_for_layout:
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* @layout: A #PangoLayout
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*
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* This updates any internal glyph cache textures as necessary to be
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* able to render the given @layout.
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*
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* This api should be used to avoid mid-scene modifications of
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* glyph-cache textures which can lead to undefined rendering results.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_ensure_glyph_cache_for_layout (PangoLayout *layout);
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/**
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* cogl_pango_font_map_set_use_mipmapping:
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* @font_map: a #CoglPangoFontMap
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* @value: %TRUE to enable the use of mipmapping
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*
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* Sets whether the renderer for the passed font map should use
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* mipmapping when rendering a #PangoLayout.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_font_map_set_use_mipmapping (CoglPangoFontMap *font_map,
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CoglBool value);
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/**
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* cogl_pango_font_map_get_use_mipmapping:
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* @font_map: a #CoglPangoFontMap
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*
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* Retrieves whether the #CoglPangoRenderer used by @font_map will use
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* mipmapping when rendering the glyphs.
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*
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* Return value: %TRUE if mipmapping is used, %FALSE otherwise.
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*
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* Since: 1.0
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*/
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CoglBool
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cogl_pango_font_map_get_use_mipmapping (CoglPangoFontMap *font_map);
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/**
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* cogl_pango_font_map_get_renderer:
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* @font_map: a #CoglPangoFontMap
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*
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* Retrieves the #CoglPangoRenderer for the passed @font_map.
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*
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* Return value: (transfer none): a #PangoRenderer
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*
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* Since: 1.0
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*/
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PangoRenderer *
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cogl_pango_font_map_get_renderer (CoglPangoFontMap *font_map);
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/**
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* cogl_pango_show_layout: (skip)
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* @framebuffer: A #CoglFramebuffer to draw too.
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* @layout: a #PangoLayout
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* @x: X coordinate to render the layout at
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* @y: Y coordinate to render the layout at
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* @color: color to use when rendering the layout
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*
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* Draws a solidly coloured @layout on the given @framebuffer at (@x,
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* @y) within the @framebuffer<!-- -->'s current model-view coordinate
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* space.
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*
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* Since: 1.14
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*/
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void
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cogl_pango_show_layout (CoglFramebuffer *framebuffer,
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PangoLayout *layout,
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float x,
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float y,
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const CoglColor *color);
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/**
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* cogl_pango_show_layout_line: (skip)
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* @framebuffer: A #CoglFramebuffer to draw too.
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* @line: a #PangoLayoutLine
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* @x: X coordinate to render the line at
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* @y: Y coordinate to render the line at
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* @color: color to use when rendering the line
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*
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* Draws a solidly coloured @line on the given @framebuffer at (@x,
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* @y) within the @framebuffer<!-- -->'s current model-view coordinate
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* space.
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*
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* Since: 1.14
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*/
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void
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cogl_pango_show_layout_line (CoglFramebuffer *framebuffer,
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PangoLayoutLine *line,
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float x,
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float y,
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const CoglColor *color);
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#define COGL_PANGO_TYPE_RENDERER (cogl_pango_renderer_get_type ())
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#define COGL_PANGO_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), COGL_PANGO_TYPE_RENDERER, CoglPangoRenderer))
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#define COGL_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), COGL_PANGO_TYPE_RENDERER, CoglPangoRendererClass))
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#define COGL_PANGO_IS_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), COGL_PANGO_TYPE_RENDERER))
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#define COGL_PANGO_IS_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), COGL_PANGO_TYPE_RENDERER))
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#define COGL_PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), COGL_PANGO_TYPE_RENDERER, CoglPangoRendererClass))
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/* opaque types */
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typedef struct _CoglPangoRenderer CoglPangoRenderer;
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typedef struct _CoglPangoRendererClass CoglPangoRendererClass;
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GType cogl_pango_renderer_get_type (void) G_GNUC_CONST;
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/**
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* cogl_pango_render_layout_subpixel:
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* @layout: a #PangoLayout
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* @x: X coordinate (in Pango units) to render the layout at
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* @y: Y coordinate (in Pango units) to render the layout at
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* @color: color to use when rendering the layout
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* @flags:
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*
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* Draws a solidly coloured @layout on the given @framebuffer at (@x,
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* @y) within the @framebuffer<!-- -->'s current model-view coordinate
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* space.
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*
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* Since: 1.0
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* Deprecated: 1.16: Use cogl_pango_show_layout() instead
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*/
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COGL_DEPRECATED_FOR (cogl_pango_show_layout)
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void
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cogl_pango_render_layout_subpixel (PangoLayout *layout,
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int x,
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int y,
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const CoglColor *color,
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int flags);
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/**
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* cogl_pango_render_layout:
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* @layout: a #PangoLayout
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* @x: X coordinate to render the layout at
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* @y: Y coordinate to render the layout at
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* @color: color to use when rendering the layout
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* @flags:
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*
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* Draws a solidly coloured @layout on the given @framebuffer at (@x,
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* @y) within the @framebuffer<!-- -->'s current model-view coordinate
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* space.
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*
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* Since: 1.0
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* Deprecated: 1.16: Use cogl_pango_show_layout() instead
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*/
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COGL_DEPRECATED_FOR (cogl_pango_show_layout)
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void
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cogl_pango_render_layout (PangoLayout *layout,
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int x,
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int y,
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const CoglColor *color,
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int flags);
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/**
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* cogl_pango_render_layout_line:
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* @line: a #PangoLayoutLine
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* @x: X coordinate to render the line at
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* @y: Y coordinate to render the line at
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* @color: color to use when rendering the line
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*
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* Renders @line at the given coordinates using the given color.
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*
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* Since: 1.0
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* Deprecated: 1.16: Use cogl_pango_show_layout() instead
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*/
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COGL_DEPRECATED_FOR (cogl_pango_show_layout_line)
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void
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cogl_pango_render_layout_line (PangoLayoutLine *line,
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int x,
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int y,
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const CoglColor *color);
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G_END_DECLS
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#endif /* __COGL_PANGO_H__ */
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