/usr/include/pango-1.0/pango/pango-types.h is in libpango1.0-dev 1.36.3-1ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | /* Pango
* pango-types.h:
*
* Copyright (C) 1999 Red Hat Software
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __PANGO_TYPES_H__
#define __PANGO_TYPES_H__
#include <glib.h>
#include <glib-object.h>
G_BEGIN_DECLS
typedef struct _PangoLogAttr PangoLogAttr;
typedef struct _PangoEngineLang PangoEngineLang;
typedef struct _PangoEngineShape PangoEngineShape;
typedef struct _PangoFont PangoFont;
typedef struct _PangoFontMap PangoFontMap;
typedef struct _PangoRectangle PangoRectangle;
/* A index of a glyph into a font. Rendering system dependent */
/**
* PangoGlyph:
*
* A #PangoGlyph represents a single glyph in the output form of a string.
*/
typedef guint32 PangoGlyph;
/**
* PANGO_SCALE:
*
* The %PANGO_SCALE macro represents the scale between dimensions used
* for Pango distances and device units. (The definition of device
* units is dependent on the output device; it will typically be pixels
* for a screen, and points for a printer.) %PANGO_SCALE is currently
* 1024, but this may be changed in the future.
*
* When setting font sizes, device units are always considered to be
* points (as in "12 point font"), rather than pixels.
*/
/**
* PANGO_PIXELS:
* @d: a dimension in Pango units.
*
* Converts a dimension to device units by rounding.
*
* Return value: rounded dimension in device units.
*/
/**
* PANGO_PIXELS_FLOOR:
* @d: a dimension in Pango units.
*
* Converts a dimension to device units by flooring.
*
* Return value: floored dimension in device units.
* Since: 1.14
*/
/**
* PANGO_PIXELS_CEIL:
* @d: a dimension in Pango units.
*
* Converts a dimension to device units by ceiling.
*
* Return value: ceiled dimension in device units.
* Since: 1.14
*/
#define PANGO_SCALE 1024
#define PANGO_PIXELS(d) (((int)(d) + 512) >> 10)
#define PANGO_PIXELS_FLOOR(d) (((int)(d)) >> 10)
#define PANGO_PIXELS_CEIL(d) (((int)(d) + 1023) >> 10)
/* The above expressions are just slightly wrong for floating point d;
* For example we'd expect PANGO_PIXELS(-512.5) => -1 but instead we get 0.
* That's unlikely to matter for practical use and the expression is much
* more compact and faster than alternatives that work exactly for both
* integers and floating point.
*
* PANGO_PIXELS also behaves differently for +512 and -512.
*/
/**
* PANGO_UNITS_ROUND:
* @d: a dimension in Pango units.
*
* Rounds a dimension to whole device units, but does not
* convert it to device units.
*
* Return value: rounded dimension in Pango units.
* Since: 1.18
*/
#define PANGO_UNITS_ROUND(d) \
(((d) + (PANGO_SCALE >> 1)) & ~(PANGO_SCALE - 1))
int pango_units_from_double (double d) G_GNUC_CONST;
double pango_units_to_double (int i) G_GNUC_CONST;
/**
* PangoRectangle:
* @x: X coordinate of the left side of the rectangle.
* @y: Y coordinate of the the top side of the rectangle.
* @width: width of the rectangle.
* @height: height of the rectangle.
*
* The #PangoRectangle structure represents a rectangle. It is frequently
* used to represent the logical or ink extents of a single glyph or section
* of text. (See, for instance, pango_font_get_glyph_extents())
*
*/
struct _PangoRectangle
{
int x;
int y;
int width;
int height;
};
/* Macros to translate from extents rectangles to ascent/descent/lbearing/rbearing
*/
/**
* PANGO_ASCENT:
* @rect: a #PangoRectangle
*
* Extracts the <firstterm>ascent</firstterm> from a #PangoRectangle
* representing glyph extents. The ascent is the distance from the
* baseline to the highest point of the character. This is positive if the
* glyph ascends above the baseline.
*/
/**
* PANGO_DESCENT:
* @rect: a #PangoRectangle
*
* Extracts the <firstterm>descent</firstterm> from a #PangoRectangle
* representing glyph extents. The descent is the distance from the
* baseline to the lowest point of the character. This is positive if the
* glyph descends below the baseline.
*/
/**
* PANGO_LBEARING:
* @rect: a #PangoRectangle
*
* Extracts the <firstterm>left bearing</firstterm> from a #PangoRectangle
* representing glyph extents. The left bearing is the distance from the
* horizontal origin to the farthest left point of the character.
* This is positive for characters drawn completely to the right of the
* glyph origin.
*/
/**
* PANGO_RBEARING:
* @rect: a #PangoRectangle
*
* Extracts the <firstterm>right bearing</firstterm> from a #PangoRectangle
* representing glyph extents. The right bearing is the distance from the
* horizontal origin to the farthest right point of the character.
* This is positive except for characters drawn completely to the left of the
* horizontal origin.
*/
#define PANGO_ASCENT(rect) (-(rect).y)
#define PANGO_DESCENT(rect) ((rect).y + (rect).height)
#define PANGO_LBEARING(rect) ((rect).x)
#define PANGO_RBEARING(rect) ((rect).x + (rect).width)
void pango_extents_to_pixels (PangoRectangle *inclusive,
PangoRectangle *nearest);
#include <pango/pango-gravity.h>
#include <pango/pango-language.h>
#include <pango/pango-matrix.h>
#include <pango/pango-script.h>
#include <pango/pango-bidi-type.h>
G_END_DECLS
#endif /* __PANGO_TYPES_H__ */
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