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