dll/win32/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 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 INT ceilr(REAL x)
  72 {
  73     return (INT) ceilf(x);
  74 }
  75
  76 static inline REAL deg2rad(REAL degrees)
  77 {
  78     return M_PI * degrees / 180.0;
  79 }
  80
  81 extern const char *debugstr_rectf(CONST RectF* rc);
  82
  83 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
  84     BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
  85
  86 struct GpPen{
  87     UINT style;
  88     GpUnit unit;
  89     REAL width;
  90     GpLineCap endcap;
  91     GpLineCap startcap;
  92     GpDashCap dashcap;
  93     GpCustomLineCap *customstart;
  94     GpCustomLineCap *customend;
  95     GpLineJoin join;
  96     REAL miterlimit;
  97     GpDashStyle dash;
  98     REAL *dashes;
  99     INT numdashes;
 100     REAL offset;    /* dash offset */
 101     GpBrush *brush;
 102     GpPenAlignment align;
 103 };
 104
 105 struct GpGraphics{
 106     HDC hdc;
 107     HWND hwnd;
 108     BOOL owndc;
 109     SmoothingMode smoothing;
 110     CompositingQuality compqual;
 111     InterpolationMode interpolation;
 112     PixelOffsetMode pixeloffset;
 113     CompositingMode compmode;
 114     TextRenderingHint texthint;
 115     GpUnit unit;    /* page unit */
 116     REAL scale;     /* page scale */
 117     GpMatrix * worldtrans; /* world transform */
 118     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 119     GpRegion *clip;
 120     UINT textcontrast; /* not used yet. get/set only */
 121     struct list containers;
 122     GraphicsContainer contid; /* last-issued container ID */
 123 };
 124
 125 struct GpBrush{
 126     HBRUSH gdibrush;
 127     GpBrushType bt;
 128     LOGBRUSH lb;
 129 };
 130
 131 struct GpHatch{
 132     GpBrush brush;
 133     HatchStyle hatchstyle;
 134     ARGB forecol;
 135     ARGB backcol;
 136 };
 137
 138 struct GpSolidFill{
 139     GpBrush brush;
 140     ARGB color;
 141     HBITMAP bmp;
 142 };
 143
 144 struct GpPathGradient{
 145     GpBrush brush;
 146     PathData pathdata;
 147     ARGB centercolor;
 148     GpWrapMode wrap;
 149     BOOL gamma;
 150     GpPointF center;
 151     GpPointF focus;
 152     REAL* blendfac;  /* blend factors */
 153     REAL* blendpos;  /* blend positions */
 154     INT blendcount;
 155 };
 156
 157 struct GpLineGradient{
 158     GpBrush brush;
 159     GpPointF startpoint;
 160     GpPointF endpoint;
 161     ARGB startcolor;
 162     ARGB endcolor;
 163     RectF rect;
 164     GpWrapMode wrap;
 165     BOOL gamma;
 166     REAL* blendfac;  /* blend factors */
 167     REAL* blendpos;  /* blend positions */
 168     INT blendcount;
 169     ARGB* pblendcolor; /* preset blend colors */
 170     REAL* pblendpos; /* preset blend positions */
 171     INT pblendcount;
 172 };
 173
 174 struct GpTexture{
 175     GpBrush brush;
 176     GpMatrix *transform;
 177     WrapMode wrap;  /* not used yet */
 178 };
 179
 180 struct GpPath{
 181     GpFillMode fill;
 182     GpPathData pathdata;
 183     BOOL newfigure; /* whether the next drawing action starts a new figure */
 184     INT datalen; /* size of the arrays in pathdata */
 185 };
 186
 187 struct GpMatrix{
 188     REAL matrix[6];
 189 };
 190
 191 struct GpPathIterator{
 192     GpPathData pathdata;
 193     INT subpath_pos;    /* for NextSubpath methods */
 194     INT marker_pos;     /* for NextMarker methods */
 195     INT pathtype_pos;   /* for NextPathType methods */
 196 };
 197
 198 struct GpCustomLineCap{
 199     GpPathData pathdata;
 200     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 201     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 202     REAL inset;     /* how much to adjust the end of the line */
 203     GpLineJoin join;
 204     REAL scale;
 205 };
 206
 207 struct GpAdustableArrowCap{
 208     GpCustomLineCap cap;
 209 };
 210
 211 struct GpImage{
 212     IPicture* picture;
 213     ImageType type;
 214     GUID format;
 215     UINT flags;
 216     UINT palette_flags;
 217     UINT palette_count;
 218     UINT palette_size;
 219     ARGB *palette_entries;
 220 };
 221
 222 struct GpMetafile{
 223     GpImage image;
 224     GpRectF bounds;
 225     GpUnit unit;
 226 };
 227
 228 struct GpBitmap{
 229     GpImage image;
 230     INT width;
 231     INT height;
 232     PixelFormat format;
 233     ImageLockMode lockmode;
 234     INT numlocks;
 235     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 236     HBITMAP hbitmap;
 237     HDC hdc;
 238     BYTE *bits; /* actual image bits if this is a DIB */
 239     INT stride; /* stride of bits if this is a DIB */
 240 };
 241
 242 struct GpCachedBitmap{
 243     GpImage *image;
 244 };
 245
 246 struct color_key{
 247     BOOL enabled;
 248     ARGB low;
 249     ARGB high;
 250 };
 251
 252 struct GpImageAttributes{
 253     WrapMode wrap;
 254     struct color_key colorkeys[ColorAdjustTypeCount];
 255 };
 256
 257 struct GpFont{
 258     LOGFONTW lfw;
 259     REAL emSize;
 260     UINT height;
 261     LONG line_spacing;
 262     Unit unit;
 263 };
 264
 265 struct GpStringFormat{
 266     INT attr;
 267     LANGID lang;
 268     LANGID digitlang;
 269     StringAlignment align;
 270     StringTrimming trimming;
 271     HotkeyPrefix hkprefix;
 272     StringAlignment vertalign;
 273     StringDigitSubstitute digitsub;
 274     INT tabcount;
 275     REAL firsttab;
 276     REAL *tabs;
 277 };
 278
 279 struct GpFontCollection{
 280     GpFontFamily **FontFamilies;
 281     INT count;
 282     INT allocated;
 283 };
 284
 285 struct GpFontFamily{
 286     NEWTEXTMETRICW tmw;
 287     WCHAR FamilyName[LF_FACESIZE];
 288 };
 289
 290 /* internal use */
 291 typedef enum RegionType
 292 {
 293     RegionDataRect          = 0x10000000,
 294     RegionDataPath          = 0x10000001,
 295     RegionDataEmptyRect     = 0x10000002,
 296     RegionDataInfiniteRect  = 0x10000003,
 297 } RegionType;
 298
 299 struct region_element
 300 {
 301     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 302     union
 303     {
 304         GpRectF rect;
 305         struct
 306         {
 307             GpPath* path;
 308             struct
 309             {
 310                 DWORD size;
 311                 DWORD magic;
 312                 DWORD count;
 313                 DWORD flags;
 314             } pathheader;
 315         } pathdata;
 316         struct
 317         {
 318             struct region_element *left;  /* the original region */
 319             struct region_element *right; /* what *left was combined with */
 320         } combine;
 321     } elementdata;
 322 };
 323
 324 struct GpRegion{
 325     struct
 326     {
 327         DWORD size;
 328         DWORD checksum;
 329         DWORD magic;
 330         DWORD num_children;
 331     } header;
 332     region_element node;
 333 };
 334
 335 #endif