Dogcows Code - chaz/openbox/blob - render/render.h

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    render.h for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6    Copyright (c) 2003        Derek Foreman
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    See the COPYING file for a copy of the GNU General Public License.
  19 */
  20
  21 #ifndef __render_h
  22 #define __render_h
  23
  24 #include "geom.h"
  25 #include "render/version.h"
  26
  27 #include <X11/Xlib.h> /* some platforms dont include this as needed for Xft */
  28 #include <pango/pangoxft.h>
  29 #include <glib.h>
  30
  31 G_BEGIN_DECLS
  32
  33 typedef union  _RrTextureData      RrTextureData;
  34 typedef struct _RrAppearance       RrAppearance;
  35 typedef struct _RrSurface          RrSurface;
  36 typedef struct _RrFont             RrFont;
  37 typedef struct _RrTexture          RrTexture;
  38 typedef struct _RrTextureMask      RrTextureMask;
  39 typedef struct _RrTextureRGBA      RrTextureRGBA;
  40 typedef struct _RrTextureText      RrTextureText;
  41 typedef struct _RrTextureLineArt   RrTextureLineArt;
  42 typedef struct _RrPixmapMask       RrPixmapMask;
  43 typedef struct _RrInstance         RrInstance;
  44 typedef struct _RrColor            RrColor;
  45
  46 typedef guint32 RrPixel32;
  47 typedef guint16 RrPixel16;
  48 typedef guchar  RrPixel8;
  49
  50 typedef enum {
  51     RR_RELIEF_FLAT,
  52     RR_RELIEF_RAISED,
  53     RR_RELIEF_SUNKEN
  54 } RrReliefType;
  55
  56 typedef enum {
  57     RR_BEVEL_1,
  58     RR_BEVEL_2
  59 } RrBevelType;
  60
  61 typedef enum {
  62     RR_SURFACE_NONE,
  63     RR_SURFACE_PARENTREL,
  64     RR_SURFACE_SOLID,
  65     RR_SURFACE_SPLIT_VERTICAL,
  66     RR_SURFACE_HORIZONTAL,
  67     RR_SURFACE_VERTICAL,
  68     RR_SURFACE_DIAGONAL,
  69     RR_SURFACE_CROSS_DIAGONAL,
  70     RR_SURFACE_PYRAMID,
  71     RR_SURFACE_MIRROR_HORIZONTAL
  72 } RrSurfaceColorType;
  73
  74 typedef enum {
  75     RR_TEXTURE_NONE,
  76     RR_TEXTURE_MASK,
  77     RR_TEXTURE_TEXT,
  78     RR_TEXTURE_LINE_ART,
  79     RR_TEXTURE_RGBA
  80 } RrTextureType;
  81
  82 typedef enum {
  83     RR_JUSTIFY_LEFT,
  84     RR_JUSTIFY_CENTER,
  85     RR_JUSTIFY_RIGHT
  86 } RrJustify;
  87
  88 /* Put middle first so it's the default */
  89 typedef enum {
  90     RR_ELLIPSIZE_MIDDLE,
  91     RR_ELLIPSIZE_NONE,
  92     RR_ELLIPSIZE_START,
  93     RR_ELLIPSIZE_END
  94 } RrEllipsizeMode;
  95
  96 typedef enum {
  97     RR_FONTWEIGHT_LIGHT,
  98     RR_FONTWEIGHT_NORMAL,
  99     RR_FONTWEIGHT_SEMIBOLD,
 100     RR_FONTWEIGHT_BOLD,
 101     RR_FONTWEIGHT_ULTRABOLD
 102 } RrFontWeight;
 103
 104 typedef enum {
 105     RR_FONTSLANT_NORMAL,
 106     RR_FONTSLANT_ITALIC,
 107     RR_FONTSLANT_OBLIQUE
 108 } RrFontSlant;
 109
 110 struct _RrSurface {
 111     RrSurfaceColorType grad;
 112     RrReliefType relief;
 113     RrBevelType bevel;
 114     RrColor *primary;
 115     RrColor *secondary;
 116     RrColor *border_color;
 117     RrColor *bevel_dark;
 118     RrColor *bevel_light;
 119     RrColor *interlace_color;
 120     gboolean interlaced;
 121     gboolean border;
 122     RrAppearance *parent;
 123     gint parentx;
 124     gint parenty;
 125     RrPixel32 *pixel_data;
 126     gint bevel_dark_adjust;  /* 0-255, default is 64 */
 127     gint bevel_light_adjust; /* 0-255, default is 128 */
 128     RrColor *split_primary;
 129     RrColor *split_secondary;
 130 };
 131
 132 struct _RrTextureText {
 133     RrFont *font;
 134     RrJustify justify;
 135     RrColor *color;
 136     const gchar *string;
 137     gint shadow_offset_x;
 138     gint shadow_offset_y;
 139     RrColor *shadow_color;
 140     guchar shadow_alpha;
 141     gboolean shortcut; /*!< Underline a character */
 142     guint shortcut_pos; /*!< Position in bytes of the character to underline */
 143     RrEllipsizeMode ellipsize;
 144     gboolean flow; /* allow multiple lines.  must set maxwidth below */
 145     gint maxwidth;
 146 };
 147
 148 struct _RrPixmapMask {
 149     const RrInstance *inst;
 150     Pixmap mask;
 151     gint width;
 152     gint height;
 153     gchar *data;
 154 };
 155
 156 struct _RrTextureMask {
 157     RrColor *color;
 158     RrPixmapMask *mask;
 159 };
 160
 161 struct _RrTextureRGBA {
 162     gint width;
 163     gint height;
 164     gint alpha;
 165     RrPixel32 *data;
 166 /* cached scaled so we don't have to scale often */
 167     gint cwidth;
 168     gint cheight;
 169     RrPixel32 *cache;
 170 /* size and position to draw at */
 171     gint tx;
 172     gint ty;
 173     gint twidth;
 174     gint theight;
 175 };
 176
 177 struct _RrTextureLineArt {
 178     RrColor *color;
 179     gint x1;
 180     gint y1;
 181     gint x2;
 182     gint y2;
 183 };
 184
 185 union _RrTextureData {
 186     RrTextureRGBA rgba;
 187     RrTextureText text;
 188     RrTextureMask mask;
 189     RrTextureLineArt lineart;
 190 };
 191
 192 struct _RrTexture {
 193     RrTextureType type;
 194     RrTextureData data;
 195 };
 196
 197 struct _RrAppearance {
 198     const RrInstance *inst;
 199
 200     RrSurface surface;
 201     gint textures;
 202     RrTexture *texture;
 203     Pixmap pixmap;
 204     XftDraw *xftdraw;
 205
 206     /* cached for internal use */
 207     gint w, h;
 208 };
 209
 210 /* these are the same on all endian machines because it seems to be dependant
 211    on the endianness of the gfx card, not the cpu. */
 212 #define RrDefaultAlphaOffset 24
 213 #define RrDefaultRedOffset 16
 214 #define RrDefaultGreenOffset 8
 215 #define RrDefaultBlueOffset 0
 216
 217 #define RrDefaultFontFamily       "arial,sans"
 218 #define RrDefaultFontSize         8
 219 #define RrDefaultFontWeight       RR_FONTWEIGHT_NORMAL
 220 #define RrDefaultFontSlant        RR_FONTSLANT_NORMAL
 221
 222 RrInstance* RrInstanceNew (Display *display, gint screen);
 223 void        RrInstanceFree (RrInstance *inst);
 224
 225 Display* RrDisplay      (const RrInstance *inst);
 226 gint     RrScreen       (const RrInstance *inst);
 227 Window   RrRootWindow   (const RrInstance *inst);
 228 Visual*  RrVisual       (const RrInstance *inst);
 229 gint     RrDepth        (const RrInstance *inst);
 230 Colormap RrColormap     (const RrInstance *inst);
 231 gint     RrRedOffset    (const RrInstance *inst);
 232 gint     RrGreenOffset  (const RrInstance *inst);
 233 gint     RrBlueOffset   (const RrInstance *inst);
 234 gint     RrRedShift     (const RrInstance *inst);
 235 gint     RrGreenShift   (const RrInstance *inst);
 236 gint     RrBlueShift    (const RrInstance *inst);
 237 gint     RrRedMask      (const RrInstance *inst);
 238 gint     RrGreenMask    (const RrInstance *inst);
 239 gint     RrBlueMask     (const RrInstance *inst);
 240
 241 RrColor *RrColorNew   (const RrInstance *inst, gint r, gint g, gint b);
 242 RrColor *RrColorParse (const RrInstance *inst, gchar *colorname);
 243 void     RrColorFree  (RrColor *in);
 244
 245 gint     RrColorRed   (const RrColor *c);
 246 gint     RrColorGreen (const RrColor *c);
 247 gint     RrColorBlue  (const RrColor *c);
 248 gulong   RrColorPixel (const RrColor *c);
 249 GC       RrColorGC    (RrColor *c);
 250
 251 RrAppearance *RrAppearanceNew  (const RrInstance *inst, gint numtex);
 252 RrAppearance *RrAppearanceCopy (RrAppearance *a);
 253 void          RrAppearanceFree (RrAppearance *a);
 254 void          RrAppearanceRemoveTextures(RrAppearance *a);
 255 void          RrAppearanceAddTextures(RrAppearance *a, gint numtex);
 256
 257 RrFont *RrFontOpen          (const RrInstance *inst, const gchar *name,
 258                              gint size, RrFontWeight weight, RrFontSlant slant);
 259 RrFont *RrFontOpenDefault   (const RrInstance *inst);
 260 void    RrFontClose         (RrFont *f);
 261 RrSize *RrFontMeasureString (const RrFont *f, const gchar *str,
 262                              gint shadow_offset_x, gint shadow_offset_y,
 263                              gboolean flow, gint maxwidth);
 264 gint    RrFontHeight        (const RrFont *f, gint shadow_offset_y);
 265 gint    RrFontMaxCharWidth  (const RrFont *f);
 266
 267 /* Paint into the appearance. The old pixmap is returned (if there was one). It
 268    is the responsibility of the caller to call XFreePixmap on the return when
 269    it is non-null. */
 270 Pixmap RrPaintPixmap (RrAppearance *a, gint w, gint h);
 271 void   RrPaint       (RrAppearance *a, Window win, gint w, gint h);
 272 void   RrMinSize     (RrAppearance *a, gint *w, gint *h);
 273 gint   RrMinWidth    (RrAppearance *a);
 274 /* For text textures, if flow is TRUE, then the string must be set before
 275    calling this, otherwise it doesn't need to be */
 276 gint   RrMinHeight   (RrAppearance *a);
 277 void   RrMargins     (RrAppearance *a, gint *l, gint *t, gint *r, gint *b);
 278
 279 gboolean RrPixmapToRGBA(const RrInstance *inst,
 280                         Pixmap pmap, Pixmap mask,
 281                         gint *w, gint *h, RrPixel32 **data);
 282
 283 G_END_DECLS
 284
 285 #endif /*__render_h*/