reactos/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
  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 HBITMAP ARGB2BMP(ARGB color);
  45 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
  46     REAL startAngle, REAL sweepAngle);
  47 extern REAL gdiplus_atan2(REAL dy, REAL dx);
  48 extern GpStatus hresult_to_status(HRESULT res);
  49 extern REAL convert_unit(HDC hdc, GpUnit unit);
  50
  51 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
  52     REAL *y1, REAL *x2, REAL *y2);
  53 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
  54     REAL tension, REAL *x, REAL *y);
  55
  56 extern void free_installed_fonts(void);
  57
  58 extern BOOL lengthen_path(GpPath *path, INT len);
  59
  60 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
  61
  62 typedef struct region_element region_element;
  63 extern inline void delete_element(region_element *element);
  64
  65 static inline INT roundr(REAL x)
  66 {
  67     return (INT) floorf(x + 0.5);
  68 }
  69
  70 static inline REAL deg2rad(REAL degrees)
  71 {
  72     return M_PI * degrees / 180.0;
  73 }
  74
  75 extern const char *debugstr_rectf(CONST RectF* rc);
  76
  77 struct GpPen{
  78     UINT style;
  79     GpUnit unit;
  80     REAL width;
  81     GpLineCap endcap;
  82     GpLineCap startcap;
  83     GpDashCap dashcap;
  84     GpCustomLineCap *customstart;
  85     GpCustomLineCap *customend;
  86     GpLineJoin join;
  87     REAL miterlimit;
  88     GpDashStyle dash;
  89     REAL *dashes;
  90     INT numdashes;
  91     REAL offset;    /* dash offset */
  92     GpBrush *brush;
  93     GpPenAlignment align;
  94 };
  95
  96 struct GpGraphics{
  97     HDC hdc;
  98     HWND hwnd;
  99     BOOL owndc;
 100     SmoothingMode smoothing;
 101     CompositingQuality compqual;
 102     InterpolationMode interpolation;
 103     PixelOffsetMode pixeloffset;
 104     CompositingMode compmode;
 105     TextRenderingHint texthint;
 106     GpUnit unit;    /* page unit */
 107     REAL scale;     /* page scale */
 108     GpMatrix * worldtrans; /* world transform */
 109     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 110     GpRegion *clip;
 111     UINT textcontrast; /* not used yet. get/set only */
 112 };
 113
 114 struct GpBrush{
 115     HBRUSH gdibrush;
 116     GpBrushType bt;
 117     LOGBRUSH lb;
 118 };
 119
 120 struct GpHatch{
 121     GpBrush brush;
 122     HatchStyle hatchstyle;
 123     ARGB forecol;
 124     ARGB backcol;
 125 };
 126
 127 struct GpSolidFill{
 128     GpBrush brush;
 129     ARGB color;
 130     HBITMAP bmp;
 131 };
 132
 133 struct GpPathGradient{
 134     GpBrush brush;
 135     PathData pathdata;
 136     ARGB centercolor;
 137     GpWrapMode wrap;
 138     BOOL gamma;
 139     GpPointF center;
 140     GpPointF focus;
 141     REAL* blendfac;  /* blend factors */
 142     REAL* blendpos;  /* blend positions */
 143     INT blendcount;
 144 };
 145
 146 struct GpLineGradient{
 147     GpBrush brush;
 148     GpPointF startpoint;
 149     GpPointF endpoint;
 150     ARGB startcolor;
 151     ARGB endcolor;
 152     RectF rect;
 153     GpWrapMode wrap;
 154     BOOL gamma;
 155     REAL* blendfac;  /* blend factors */
 156     REAL* blendpos;  /* blend positions */
 157     INT blendcount;
 158 };
 159
 160 struct GpTexture{
 161     GpBrush brush;
 162     GpMatrix *transform;
 163     WrapMode wrap;  /* not used yet */
 164 };
 165
 166 struct GpPath{
 167     GpFillMode fill;
 168     GpPathData pathdata;
 169     BOOL newfigure; /* whether the next drawing action starts a new figure */
 170     INT datalen; /* size of the arrays in pathdata */
 171 };
 172
 173 struct GpMatrix{
 174     REAL matrix[6];
 175 };
 176
 177 struct GpPathIterator{
 178     GpPathData pathdata;
 179     INT subpath_pos;    /* for NextSubpath methods */
 180     INT marker_pos;     /* for NextMarker methods */
 181     INT pathtype_pos;   /* for NextPathType methods */
 182 };
 183
 184 struct GpCustomLineCap{
 185     GpPathData pathdata;
 186     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 187     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 188     REAL inset;     /* how much to adjust the end of the line */
 189     GpLineJoin join;
 190     REAL scale;
 191 };
 192
 193 struct GpAdustableArrowCap{
 194     GpCustomLineCap cap;
 195 };
 196
 197 struct GpImage{
 198     IPicture* picture;
 199     ImageType type;
 200     UINT flags;
 201 };
 202
 203 struct GpMetafile{
 204     GpImage image;
 205     GpRectF bounds;
 206     GpUnit unit;
 207 };
 208
 209 struct GpBitmap{
 210     GpImage image;
 211     INT width;
 212     INT height;
 213     PixelFormat format;
 214     ImageLockMode lockmode;
 215     INT numlocks;
 216     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 217 };
 218
 219 struct GpCachedBitmap{
 220     GpImage *image;
 221 };
 222
 223 struct GpImageAttributes{
 224     WrapMode wrap;
 225 };
 226
 227 struct GpFont{
 228     LOGFONTW lfw;
 229     REAL emSize;
 230     UINT height;
 231     LONG line_spacing;
 232     Unit unit;
 233 };
 234
 235 struct GpStringFormat{
 236     INT attr;
 237     LANGID lang;
 238     LANGID digitlang;
 239     StringAlignment align;
 240     StringTrimming trimming;
 241     HotkeyPrefix hkprefix;
 242     StringAlignment vertalign;
 243     StringDigitSubstitute digitsub;
 244     INT tabcount;
 245     REAL firsttab;
 246     REAL *tabs;
 247 };
 248
 249 struct GpFontCollection{
 250     GpFontFamily **FontFamilies;
 251     INT count;
 252     INT allocated;
 253 };
 254
 255 struct GpFontFamily{
 256     NEWTEXTMETRICW tmw;
 257     WCHAR FamilyName[LF_FACESIZE];
 258 };
 259
 260 /* internal use */
 261 typedef enum RegionType
 262 {
 263     RegionDataRect          = 0x10000000,
 264     RegionDataPath          = 0x10000001,
 265     RegionDataEmptyRect     = 0x10000002,
 266     RegionDataInfiniteRect  = 0x10000003,
 267 } RegionType;
 268
 269 struct region_element
 270 {
 271     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 272     union
 273     {
 274         GpRectF rect;
 275         struct
 276         {
 277             GpPath* path;
 278             struct
 279             {
 280                 DWORD size;
 281                 DWORD magic;
 282                 DWORD count;
 283                 DWORD flags;
 284             } pathheader;
 285         } pathdata;
 286         struct
 287         {
 288             struct region_element *left;  /* the original region */
 289             struct region_element *right; /* what *left was combined with */
 290         } combine;
 291     } elementdata;
 292 };
 293
 294 struct GpRegion{
 295     struct
 296     {
 297         DWORD size;
 298         DWORD checksum;
 299         DWORD magic;
 300         DWORD num_children;
 301     } header;
 302     region_element node;
 303 };
 304
 305 #endif