dlls/gdiplus/gdiplus_private.h

   1 /*
   2  * Copyright (C) 2007 Google (Evan Stade)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #ifndef __WINE_GP_PRIVATE_H_
  20 #define __WINE_GP_PRIVATE_H_
  21
  22 #include <math.h>
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "wingdi.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29
  30 #include "objbase.h"
  31 #include "ocidl.h"
  32 #include "wine/list.h"
  33
  34 #include "gdiplus.h"
  35
  36 #define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
  37 #define MAX_ARC_PTS (13)
  38 #define MAX_DASHLEN (16) /* this is a limitation of gdi */
  39 #define INCH_HIMETRIC (2540)
  40
  41 #define VERSION_MAGIC 0xdbc01001
  42 #define TENSION_CONST (0.3)
  43
  44 COLORREF ARGB2COLORREF(ARGB color);
  45 HBITMAP ARGB2BMP(ARGB color);
  46 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
  47     REAL startAngle, REAL sweepAngle);
  48 extern REAL gdiplus_atan2(REAL dy, REAL dx);
  49 extern GpStatus hresult_to_status(HRESULT res);
  50 extern REAL convert_unit(HDC hdc, GpUnit unit);
  51
  52 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
  53     REAL *y1, REAL *x2, REAL *y2);
  54 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
  55     REAL tension, REAL *x, REAL *y);
  56
  57 extern void free_installed_fonts(void);
  58
  59 extern BOOL lengthen_path(GpPath *path, INT len);
  60
  61 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
  62
  63 typedef struct region_element region_element;
  64 extern inline void delete_element(region_element *element);
  65
  66 static inline INT roundr(REAL x)
  67 {
  68     return (INT) floorf(x + 0.5);
  69 }
  70
  71 static inline REAL deg2rad(REAL degrees)
  72 {
  73     return M_PI * degrees / 180.0;
  74 }
  75
  76 extern const char *debugstr_rectf(CONST RectF* rc);
  77
  78 struct GpPen{
  79     UINT style;
  80     GpUnit unit;
  81     REAL width;
  82     GpLineCap endcap;
  83     GpLineCap startcap;
  84     GpDashCap dashcap;
  85     GpCustomLineCap *customstart;
  86     GpCustomLineCap *customend;
  87     GpLineJoin join;
  88     REAL miterlimit;
  89     GpDashStyle dash;
  90     REAL *dashes;
  91     INT numdashes;
  92     REAL offset;    /* dash offset */
  93     GpBrush *brush;
  94     GpPenAlignment align;
  95 };
  96
  97 struct GpGraphics{
  98     HDC hdc;
  99     HWND hwnd;
 100     BOOL owndc;
 101     SmoothingMode smoothing;
 102     CompositingQuality compqual;
 103     InterpolationMode interpolation;
 104     PixelOffsetMode pixeloffset;
 105     CompositingMode compmode;
 106     TextRenderingHint texthint;
 107     GpUnit unit;    /* page unit */
 108     REAL scale;     /* page scale */
 109     GpMatrix * worldtrans; /* world transform */
 110     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 111     GpRegion *clip;
 112     UINT textcontrast; /* not used yet. get/set only */
 113     struct list containers;
 114     GraphicsContainer contid; /* last-issued container ID */
 115 };
 116
 117 struct GpBrush{
 118     HBRUSH gdibrush;
 119     GpBrushType bt;
 120     LOGBRUSH lb;
 121 };
 122
 123 struct GpHatch{
 124     GpBrush brush;
 125     HatchStyle hatchstyle;
 126     ARGB forecol;
 127     ARGB backcol;
 128 };
 129
 130 struct GpSolidFill{
 131     GpBrush brush;
 132     ARGB color;
 133     HBITMAP bmp;
 134 };
 135
 136 struct GpPathGradient{
 137     GpBrush brush;
 138     PathData pathdata;
 139     ARGB centercolor;
 140     GpWrapMode wrap;
 141     BOOL gamma;
 142     GpPointF center;
 143     GpPointF focus;
 144     REAL* blendfac;  /* blend factors */
 145     REAL* blendpos;  /* blend positions */
 146     INT blendcount;
 147 };
 148
 149 struct GpLineGradient{
 150     GpBrush brush;
 151     GpPointF startpoint;
 152     GpPointF endpoint;
 153     ARGB startcolor;
 154     ARGB endcolor;
 155     RectF rect;
 156     GpWrapMode wrap;
 157     BOOL gamma;
 158     REAL* blendfac;  /* blend factors */
 159     REAL* blendpos;  /* blend positions */
 160     INT blendcount;
 161 };
 162
 163 struct GpTexture{
 164     GpBrush brush;
 165     GpMatrix *transform;
 166     WrapMode wrap;  /* not used yet */
 167 };
 168
 169 struct GpPath{
 170     GpFillMode fill;
 171     GpPathData pathdata;
 172     BOOL newfigure; /* whether the next drawing action starts a new figure */
 173     INT datalen; /* size of the arrays in pathdata */
 174 };
 175
 176 struct GpMatrix{
 177     REAL matrix[6];
 178 };
 179
 180 struct GpPathIterator{
 181     GpPathData pathdata;
 182     INT subpath_pos;    /* for NextSubpath methods */
 183     INT marker_pos;     /* for NextMarker methods */
 184     INT pathtype_pos;   /* for NextPathType methods */
 185 };
 186
 187 struct GpCustomLineCap{
 188     GpPathData pathdata;
 189     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 190     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 191     REAL inset;     /* how much to adjust the end of the line */
 192     GpLineJoin join;
 193     REAL scale;
 194 };
 195
 196 struct GpAdustableArrowCap{
 197     GpCustomLineCap cap;
 198 };
 199
 200 struct GpImage{
 201     IPicture* picture;
 202     ImageType type;
 203     UINT flags;
 204 };
 205
 206 struct GpMetafile{
 207     GpImage image;
 208     GpRectF bounds;
 209     GpUnit unit;
 210 };
 211
 212 struct GpBitmap{
 213     GpImage image;
 214     INT width;
 215     INT height;
 216     PixelFormat format;
 217     ImageLockMode lockmode;
 218     INT numlocks;
 219     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 220 };
 221
 222 struct GpCachedBitmap{
 223     GpImage *image;
 224 };
 225
 226 struct color_key{
 227     BOOL enabled;
 228     ARGB low;
 229     ARGB high;
 230 };
 231
 232 struct GpImageAttributes{
 233     WrapMode wrap;
 234     struct color_key colorkeys[ColorAdjustTypeCount];
 235 };
 236
 237 struct GpFont{
 238     LOGFONTW lfw;
 239     REAL emSize;
 240     UINT height;
 241     LONG line_spacing;
 242     Unit unit;
 243 };
 244
 245 struct GpStringFormat{
 246     INT attr;
 247     LANGID lang;
 248     LANGID digitlang;
 249     StringAlignment align;
 250     StringTrimming trimming;
 251     HotkeyPrefix hkprefix;
 252     StringAlignment vertalign;
 253     StringDigitSubstitute digitsub;
 254     INT tabcount;
 255     REAL firsttab;
 256     REAL *tabs;
 257 };
 258
 259 struct GpFontCollection{
 260     GpFontFamily **FontFamilies;
 261     INT count;
 262     INT allocated;
 263 };
 264
 265 struct GpFontFamily{
 266     NEWTEXTMETRICW tmw;
 267     WCHAR FamilyName[LF_FACESIZE];
 268 };
 269
 270 /* internal use */
 271 typedef enum RegionType
 272 {
 273     RegionDataRect          = 0x10000000,
 274     RegionDataPath          = 0x10000001,
 275     RegionDataEmptyRect     = 0x10000002,
 276     RegionDataInfiniteRect  = 0x10000003,
 277 } RegionType;
 278
 279 struct region_element
 280 {
 281     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 282     union
 283     {
 284         GpRectF rect;
 285         struct
 286         {
 287             GpPath* path;
 288             struct
 289             {
 290                 DWORD size;
 291                 DWORD magic;
 292                 DWORD count;
 293                 DWORD flags;
 294             } pathheader;
 295         } pathdata;
 296         struct
 297         {
 298             struct region_element *left;  /* the original region */
 299             struct region_element *right; /* what *left was combined with */
 300         } combine;
 301     } elementdata;
 302 };
 303
 304 struct GpRegion{
 305     struct
 306     {
 307         DWORD size;
 308         DWORD checksum;
 309         DWORD magic;
 310         DWORD num_children;
 311     } header;
 312     region_element node;
 313 };
 314
 315 #endif