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 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) floor(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 };
 142
 143 struct GpPath{
 144     GpFillMode fill;
 145     GpPathData pathdata;
 146     BOOL newfigure; /* whether the next drawing action starts a new figure */
 147     INT datalen; /* size of the arrays in pathdata */
 148 };
 149
 150 struct GpMatrix{
 151     REAL matrix[6];
 152 };
 153
 154 struct GpPathIterator{
 155     GpPathData pathdata;
 156     INT subpath_pos;    /* for NextSubpath methods */
 157     INT marker_pos;     /* for NextMarker methods */
 158     INT pathtype_pos;   /* for NextPathType methods */
 159 };
 160
 161 struct GpCustomLineCap{
 162     GpPathData pathdata;
 163     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 164     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 165     REAL inset;     /* how much to adjust the end of the line */
 166     GpLineJoin join;
 167     REAL scale;
 168 };
 169
 170 struct GpAdustableArrowCap{
 171     GpCustomLineCap cap;
 172 };
 173
 174 struct GpImage{
 175     IPicture* picture;
 176     ImageType type;
 177     UINT flags;
 178 };
 179
 180 struct GpMetafile{
 181     GpImage image;
 182     GpRectF bounds;
 183     GpUnit unit;
 184 };
 185
 186 struct GpBitmap{
 187     GpImage image;
 188     INT width;
 189     INT height;
 190     PixelFormat format;
 191     ImageLockMode lockmode;
 192     INT numlocks;
 193     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 194 };
 195
 196 struct GpImageAttributes{
 197     WrapMode wrap;
 198 };
 199
 200 struct GpFont{
 201     LOGFONTW lfw;
 202     REAL emSize;
 203     Unit unit;
 204 };
 205
 206 struct GpStringFormat{
 207     INT attr;
 208     LANGID lang;
 209     LANGID digitlang;
 210     StringAlignment align;
 211     StringTrimming trimming;
 212     HotkeyPrefix hkprefix;
 213     StringAlignment vertalign;
 214     StringDigitSubstitute digitsub;
 215     INT tabcount;
 216     REAL firsttab;
 217     REAL *tabs;
 218 };
 219
 220 struct GpFontCollection{
 221     GpFontFamily* FontFamilies;
 222 };
 223
 224 struct GpFontFamily{
 225     NEWTEXTMETRICW tmw;
 226     WCHAR FamilyName[LF_FACESIZE];
 227 };
 228
 229 /* internal use */
 230 typedef enum RegionType
 231 {
 232     RegionDataRect          = 0x10000000,
 233     RegionDataPath          = 0x10000001,
 234     RegionDataEmptyRect     = 0x10000002,
 235     RegionDataInfiniteRect  = 0x10000003,
 236 } RegionType;
 237
 238 struct region_element
 239 {
 240     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 241     union
 242     {
 243         GpRectF rect;
 244         struct
 245         {
 246             GpPath* path;
 247             struct
 248             {
 249                 DWORD size;
 250                 DWORD magic;
 251                 DWORD count;
 252                 DWORD flags;
 253             } pathheader;
 254         } pathdata;
 255         struct
 256         {
 257             struct region_element *left;  /* the original region */
 258             struct region_element *right; /* what *left was combined with */
 259         } combine;
 260     } elementdata;
 261 };
 262
 263 struct GpRegion{
 264     struct
 265     {
 266         DWORD size;
 267         DWORD checksum;
 268         DWORD magic;
 269         DWORD num_children;
 270     } header;
 271     region_element node;
 272 };
 273
 274 #endif