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
  33 #include "gdiplus.h"
  34
  35 #define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
  36 #define MAX_ARC_PTS (13)
  37 #define MAX_DASHLEN (16) /* this is a limitation of gdi */
  38 #define INCH_HIMETRIC (2540)
  39
  40 #define VERSION_MAGIC 0xdbc01001
  41 #define TENSION_CONST (0.3)
  42
  43 COLORREF ARGB2COLORREF(ARGB color);
  44 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
  45     REAL startAngle, REAL sweepAngle);
  46 extern REAL gdiplus_atan2(REAL dy, REAL dx);
  47 extern GpStatus hresult_to_status(HRESULT res);
  48 extern REAL convert_unit(HDC hdc, GpUnit unit);
  49
  50 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
  51     REAL *y1, REAL *x2, REAL *y2);
  52 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
  53     REAL tension, REAL *x, REAL *y);
  54
  55 extern BOOL lengthen_path(GpPath *path, INT len);
  56
  57 typedef struct region_element region_element;
  58 extern inline void delete_element(region_element *element);
  59
  60 static inline INT roundr(REAL x)
  61 {
  62     return (INT) floorf(x + 0.5);
  63 }
  64
  65 static inline REAL deg2rad(REAL degrees)
  66 {
  67     return M_PI * degrees / 180.0;
  68 }
  69
  70 struct GpPen{
  71     UINT style;
  72     GpUnit unit;
  73     REAL width;
  74     GpLineCap endcap;
  75     GpLineCap startcap;
  76     GpDashCap dashcap;
  77     GpCustomLineCap *customstart;
  78     GpCustomLineCap *customend;
  79     GpLineJoin join;
  80     REAL miterlimit;
  81     GpDashStyle dash;
  82     REAL *dashes;
  83     INT numdashes;
  84     REAL offset;    /* dash offset */
  85     GpBrush *brush;
  86     GpPenAlignment align;
  87 };
  88
  89 struct GpGraphics{
  90     HDC hdc;
  91     HWND hwnd;
  92     SmoothingMode smoothing;
  93     CompositingQuality compqual;
  94     InterpolationMode interpolation;
  95     PixelOffsetMode pixeloffset;
  96     CompositingMode compmode;
  97     TextRenderingHint texthint;
  98     GpUnit unit;    /* page unit */
  99     REAL scale;     /* page scale */
 100     GpMatrix * worldtrans; /* world transform */
 101     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 102     GpRegion *clip;
 103 };
 104
 105 struct GpBrush{
 106     HBRUSH gdibrush;
 107     GpBrushType bt;
 108     LOGBRUSH lb;
 109 };
 110
 111 struct GpSolidFill{
 112     GpBrush brush;
 113     ARGB color;
 114 };
 115
 116 struct GpPathGradient{
 117     GpBrush brush;
 118     PathData pathdata;
 119     ARGB centercolor;
 120     GpWrapMode wrap;
 121     BOOL gamma;
 122     GpPointF center;
 123     GpPointF focus;
 124     REAL* blendfac;  /* blend factors */
 125     REAL* blendpos;  /* blend positions */
 126     INT blendcount;
 127 };
 128
 129 struct GpLineGradient{
 130     GpBrush brush;
 131     GpPointF startpoint;
 132     GpPointF endpoint;
 133     ARGB startcolor;
 134     ARGB endcolor;
 135     GpWrapMode wrap;
 136     BOOL gamma;
 137 };
 138
 139 struct GpTexture{
 140     GpBrush brush;
 141     GpMatrix *transform;
 142     WrapMode wrap;  /* not used yet */
 143 };
 144
 145 struct GpPath{
 146     GpFillMode fill;
 147     GpPathData pathdata;
 148     BOOL newfigure; /* whether the next drawing action starts a new figure */
 149     INT datalen; /* size of the arrays in pathdata */
 150 };
 151
 152 struct GpMatrix{
 153     REAL matrix[6];
 154 };
 155
 156 struct GpPathIterator{
 157     GpPathData pathdata;
 158     INT subpath_pos;    /* for NextSubpath methods */
 159     INT marker_pos;     /* for NextMarker methods */
 160     INT pathtype_pos;   /* for NextPathType methods */
 161 };
 162
 163 struct GpCustomLineCap{
 164     GpPathData pathdata;
 165     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 166     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 167     REAL inset;     /* how much to adjust the end of the line */
 168     GpLineJoin join;
 169     REAL scale;
 170 };
 171
 172 struct GpAdustableArrowCap{
 173     GpCustomLineCap cap;
 174 };
 175
 176 struct GpImage{
 177     IPicture* picture;
 178     ImageType type;
 179     UINT flags;
 180 };
 181
 182 struct GpMetafile{
 183     GpImage image;
 184     GpRectF bounds;
 185     GpUnit unit;
 186 };
 187
 188 struct GpBitmap{
 189     GpImage image;
 190     INT width;
 191     INT height;
 192     PixelFormat format;
 193     ImageLockMode lockmode;
 194     INT numlocks;
 195     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 196 };
 197
 198 struct GpCachedBitmap{
 199     GpBitmap *bmp;
 200 };
 201
 202 struct GpImageAttributes{
 203     WrapMode wrap;
 204 };
 205
 206 struct GpFont{
 207     LOGFONTW lfw;
 208     REAL emSize;
 209     Unit unit;
 210 };
 211
 212 struct GpStringFormat{
 213     INT attr;
 214     LANGID lang;
 215     LANGID digitlang;
 216     StringAlignment align;
 217     StringTrimming trimming;
 218     HotkeyPrefix hkprefix;
 219     StringAlignment vertalign;
 220     StringDigitSubstitute digitsub;
 221     INT tabcount;
 222     REAL firsttab;
 223     REAL *tabs;
 224 };
 225
 226 struct GpFontCollection{
 227     GpFontFamily* FontFamilies;
 228 };
 229
 230 struct GpFontFamily{
 231     NEWTEXTMETRICW tmw;
 232     WCHAR FamilyName[LF_FACESIZE];
 233 };
 234
 235 /* internal use */
 236 typedef enum RegionType
 237 {
 238     RegionDataRect          = 0x10000000,
 239     RegionDataPath          = 0x10000001,
 240     RegionDataEmptyRect     = 0x10000002,
 241     RegionDataInfiniteRect  = 0x10000003,
 242 } RegionType;
 243
 244 struct region_element
 245 {
 246     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 247     union
 248     {
 249         GpRectF rect;
 250         struct
 251         {
 252             GpPath* path;
 253             struct
 254             {
 255                 DWORD size;
 256                 DWORD magic;
 257                 DWORD count;
 258                 DWORD flags;
 259             } pathheader;
 260         } pathdata;
 261         struct
 262         {
 263             struct region_element *left;  /* the original region */
 264             struct region_element *right; /* what *left was combined with */
 265         } combine;
 266     } elementdata;
 267 };
 268
 269 struct GpRegion{
 270     struct
 271     {
 272         DWORD size;
 273         DWORD checksum;
 274         DWORD magic;
 275         DWORD num_children;
 276     } header;
 277     region_element node;
 278 };
 279
 280 #endif