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 const char *debugstr_pointf(CONST PointF* pt);
  84
  85 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
  86     BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
  87
  88 extern GpStatus convert_pixels(UINT width, UINT height,
  89     INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
  90     INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette);
  91
  92 struct GpPen{
  93     UINT style;
  94     GpUnit unit;
  95     REAL width;
  96     GpLineCap endcap;
  97     GpLineCap startcap;
  98     GpDashCap dashcap;
  99     GpCustomLineCap *customstart;
 100     GpCustomLineCap *customend;
 101     GpLineJoin join;
 102     REAL miterlimit;
 103     GpDashStyle dash;
 104     REAL *dashes;
 105     INT numdashes;
 106     REAL offset;    /* dash offset */
 107     GpBrush *brush;
 108     GpPenAlignment align;
 109 };
 110
 111 struct GpGraphics{
 112     HDC hdc;
 113     HWND hwnd;
 114     BOOL owndc;
 115     SmoothingMode smoothing;
 116     CompositingQuality compqual;
 117     InterpolationMode interpolation;
 118     PixelOffsetMode pixeloffset;
 119     CompositingMode compmode;
 120     TextRenderingHint texthint;
 121     GpUnit unit;    /* page unit */
 122     REAL scale;     /* page scale */
 123     GpMatrix * worldtrans; /* world transform */
 124     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 125     GpRegion *clip;
 126     UINT textcontrast; /* not used yet. get/set only */
 127     struct list containers;
 128     GraphicsContainer contid; /* last-issued container ID */
 129 };
 130
 131 struct GpBrush{
 132     HBRUSH gdibrush;
 133     GpBrushType bt;
 134     LOGBRUSH lb;
 135 };
 136
 137 struct GpHatch{
 138     GpBrush brush;
 139     HatchStyle hatchstyle;
 140     ARGB forecol;
 141     ARGB backcol;
 142 };
 143
 144 struct GpSolidFill{
 145     GpBrush brush;
 146     ARGB color;
 147     HBITMAP bmp;
 148 };
 149
 150 struct GpPathGradient{
 151     GpBrush brush;
 152     PathData pathdata;
 153     ARGB centercolor;
 154     GpWrapMode wrap;
 155     BOOL gamma;
 156     GpPointF center;
 157     GpPointF focus;
 158     REAL* blendfac;  /* blend factors */
 159     REAL* blendpos;  /* blend positions */
 160     INT blendcount;
 161 };
 162
 163 struct GpLineGradient{
 164     GpBrush brush;
 165     GpPointF startpoint;
 166     GpPointF endpoint;
 167     ARGB startcolor;
 168     ARGB endcolor;
 169     RectF rect;
 170     GpWrapMode wrap;
 171     BOOL gamma;
 172     REAL* blendfac;  /* blend factors */
 173     REAL* blendpos;  /* blend positions */
 174     INT blendcount;
 175     ARGB* pblendcolor; /* preset blend colors */
 176     REAL* pblendpos; /* preset blend positions */
 177     INT pblendcount;
 178 };
 179
 180 struct GpTexture{
 181     GpBrush brush;
 182     GpMatrix *transform;
 183     GpImage *image;
 184     WrapMode wrap;  /* not used yet */
 185 };
 186
 187 struct GpPath{
 188     GpFillMode fill;
 189     GpPathData pathdata;
 190     BOOL newfigure; /* whether the next drawing action starts a new figure */
 191     INT datalen; /* size of the arrays in pathdata */
 192 };
 193
 194 struct GpMatrix{
 195     REAL matrix[6];
 196 };
 197
 198 struct GpPathIterator{
 199     GpPathData pathdata;
 200     INT subpath_pos;    /* for NextSubpath methods */
 201     INT marker_pos;     /* for NextMarker methods */
 202     INT pathtype_pos;   /* for NextPathType methods */
 203 };
 204
 205 struct GpCustomLineCap{
 206     GpPathData pathdata;
 207     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 208     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 209     REAL inset;     /* how much to adjust the end of the line */
 210     GpLineJoin join;
 211     REAL scale;
 212 };
 213
 214 struct GpAdustableArrowCap{
 215     GpCustomLineCap cap;
 216 };
 217
 218 struct GpImage{
 219     IPicture* picture;
 220     ImageType type;
 221     GUID format;
 222     UINT flags;
 223     UINT palette_flags;
 224     UINT palette_count;
 225     UINT palette_size;
 226     ARGB *palette_entries;
 227     REAL xres, yres;
 228 };
 229
 230 struct GpMetafile{
 231     GpImage image;
 232     GpRectF bounds;
 233     GpUnit unit;
 234 };
 235
 236 struct GpBitmap{
 237     GpImage image;
 238     INT width;
 239     INT height;
 240     PixelFormat format;
 241     ImageLockMode lockmode;
 242     INT numlocks;
 243     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 244     HBITMAP hbitmap;
 245     HDC hdc;
 246     BYTE *bits; /* actual image bits if this is a DIB */
 247     INT stride; /* stride of bits if this is a DIB */
 248 };
 249
 250 struct GpCachedBitmap{
 251     GpImage *image;
 252 };
 253
 254 struct color_key{
 255     BOOL enabled;
 256     ARGB low;
 257     ARGB high;
 258 };
 259
 260 struct color_matrix{
 261     BOOL enabled;
 262     ColorMatrixFlags flags;
 263     ColorMatrix colormatrix;
 264     ColorMatrix graymatrix;
 265 };
 266
 267 struct color_remap_table{
 268     BOOL enabled;
 269     INT mapsize;
 270     GDIPCONST ColorMap *colormap;
 271 };
 272
 273 struct GpImageAttributes{
 274     WrapMode wrap;
 275     struct color_key colorkeys[ColorAdjustTypeCount];
 276     struct color_matrix colormatrices[ColorAdjustTypeCount];
 277     struct color_remap_table colorremaptables[ColorAdjustTypeCount];
 278     BOOL gamma_enabled[ColorAdjustTypeCount];
 279     REAL gamma[ColorAdjustTypeCount];
 280 };
 281
 282 struct GpFont{
 283     LOGFONTW lfw;
 284     REAL emSize;
 285     UINT height;
 286     LONG line_spacing;
 287     Unit unit;
 288 };
 289
 290 struct GpStringFormat{
 291     INT attr;
 292     LANGID lang;
 293     LANGID digitlang;
 294     StringAlignment align;
 295     StringTrimming trimming;
 296     HotkeyPrefix hkprefix;
 297     StringAlignment vertalign;
 298     StringDigitSubstitute digitsub;
 299     INT tabcount;
 300     REAL firsttab;
 301     REAL *tabs;
 302     CharacterRange *character_ranges;
 303     INT range_count;
 304 };
 305
 306 struct GpFontCollection{
 307     GpFontFamily **FontFamilies;
 308     INT count;
 309     INT allocated;
 310 };
 311
 312 struct GpFontFamily{
 313     NEWTEXTMETRICW tmw;
 314     WCHAR FamilyName[LF_FACESIZE];
 315 };
 316
 317 /* internal use */
 318 typedef enum RegionType
 319 {
 320     RegionDataRect          = 0x10000000,
 321     RegionDataPath          = 0x10000001,
 322     RegionDataEmptyRect     = 0x10000002,
 323     RegionDataInfiniteRect  = 0x10000003,
 324 } RegionType;
 325
 326 struct region_element
 327 {
 328     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 329     union
 330     {
 331         GpRectF rect;
 332         struct
 333         {
 334             GpPath* path;
 335             struct
 336             {
 337                 DWORD size;
 338                 DWORD magic;
 339                 DWORD count;
 340                 DWORD flags;
 341             } pathheader;
 342         } pathdata;
 343         struct
 344         {
 345             struct region_element *left;  /* the original region */
 346             struct region_element *right; /* what *left was combined with */
 347         } combine;
 348     } elementdata;
 349 };
 350
 351 struct GpRegion{
 352     struct
 353     {
 354         DWORD size;
 355         DWORD checksum;
 356         DWORD magic;
 357         DWORD num_children;
 358     } header;
 359     region_element node;
 360 };
 361
 362 #endif