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 };
 143
 144 struct GpPath{
 145     GpFillMode fill;
 146     GpPathData pathdata;
 147     BOOL newfigure; /* whether the next drawing action starts a new figure */
 148     INT datalen; /* size of the arrays in pathdata */
 149 };
 150
 151 struct GpMatrix{
 152     REAL matrix[6];
 153 };
 154
 155 struct GpPathIterator{
 156     GpPathData pathdata;
 157     INT subpath_pos;    /* for NextSubpath methods */
 158     INT marker_pos;     /* for NextMarker methods */
 159     INT pathtype_pos;   /* for NextPathType methods */
 160 };
 161
 162 struct GpCustomLineCap{
 163     GpPathData pathdata;
 164     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 165     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 166     REAL inset;     /* how much to adjust the end of the line */
 167     GpLineJoin join;
 168     REAL scale;
 169 };
 170
 171 struct GpAdustableArrowCap{
 172     GpCustomLineCap cap;
 173 };
 174
 175 struct GpImage{
 176     IPicture* picture;
 177     ImageType type;
 178     UINT flags;
 179 };
 180
 181 struct GpMetafile{
 182     GpImage image;
 183     GpRectF bounds;
 184     GpUnit unit;
 185 };
 186
 187 struct GpBitmap{
 188     GpImage image;
 189     INT width;
 190     INT height;
 191     PixelFormat format;
 192     ImageLockMode lockmode;
 193     INT numlocks;
 194     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 195 };
 196
 197 struct GpImageAttributes{
 198     WrapMode wrap;
 199 };
 200
 201 struct GpFont{
 202     LOGFONTW lfw;
 203     REAL emSize;
 204     Unit unit;
 205 };
 206
 207 struct GpStringFormat{
 208     INT attr;
 209     LANGID lang;
 210     LANGID digitlang;
 211     StringAlignment align;
 212     StringTrimming trimming;
 213     HotkeyPrefix hkprefix;
 214     StringAlignment vertalign;
 215     StringDigitSubstitute digitsub;
 216     INT tabcount;
 217     REAL firsttab;
 218     REAL *tabs;
 219 };
 220
 221 struct GpFontCollection{
 222     GpFontFamily* FontFamilies;
 223 };
 224
 225 struct GpFontFamily{
 226     NEWTEXTMETRICW tmw;
 227     WCHAR FamilyName[LF_FACESIZE];
 228 };
 229
 230 /* internal use */
 231 typedef enum RegionType
 232 {
 233     RegionDataRect          = 0x10000000,
 234     RegionDataPath          = 0x10000001,
 235     RegionDataEmptyRect     = 0x10000002,
 236     RegionDataInfiniteRect  = 0x10000003,
 237 } RegionType;
 238
 239 struct region_element
 240 {
 241     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 242     union
 243     {
 244         GpRectF rect;
 245         struct
 246         {
 247             GpPath* path;
 248             struct
 249             {
 250                 DWORD size;
 251                 DWORD magic;
 252                 DWORD count;
 253                 DWORD flags;
 254             } pathheader;
 255         } pathdata;
 256         struct
 257         {
 258             struct region_element *left;  /* the original region */
 259             struct region_element *right; /* what *left was combined with */
 260         } combine;
 261     } elementdata;
 262 };
 263
 264 struct GpRegion{
 265     struct
 266     {
 267         DWORD size;
 268         DWORD checksum;
 269         DWORD magic;
 270         DWORD num_children;
 271     } header;
 272     region_element node;
 273 };
 274
 275 #endif