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 static inline INT roundr(REAL x)
  58 {
  59     return (INT) floorf(x + 0.5);
  60 }
  61
  62 static inline REAL deg2rad(REAL degrees)
  63 {
  64     return M_PI * degrees / 180.0;
  65 }
  66
  67 struct GpPen{
  68     UINT style;
  69     GpUnit unit;
  70     REAL width;
  71     GpLineCap endcap;
  72     GpLineCap startcap;
  73     GpDashCap dashcap;
  74     GpCustomLineCap *customstart;
  75     GpCustomLineCap *customend;
  76     GpLineJoin join;
  77     REAL miterlimit;
  78     GpDashStyle dash;
  79     REAL *dashes;
  80     INT numdashes;
  81     REAL offset;    /* dash offset */
  82     GpBrush *brush;
  83     GpPenAlignment align;
  84 };
  85
  86 struct GpGraphics{
  87     HDC hdc;
  88     HWND hwnd;
  89     SmoothingMode smoothing;
  90     CompositingQuality compqual;
  91     InterpolationMode interpolation;
  92     PixelOffsetMode pixeloffset;
  93     CompositingMode compmode;
  94     TextRenderingHint texthint;
  95     GpUnit unit;    /* page unit */
  96     REAL scale;     /* page scale */
  97     GpMatrix * worldtrans; /* world transform */
  98     BOOL busy;      /* hdc handle obtained by GdipGetDC */
  99 };
 100
 101 struct GpBrush{
 102     HBRUSH gdibrush;
 103     GpBrushType bt;
 104     LOGBRUSH lb;
 105 };
 106
 107 struct GpSolidFill{
 108     GpBrush brush;
 109     ARGB color;
 110 };
 111
 112 struct GpPathGradient{
 113     GpBrush brush;
 114     PathData pathdata;
 115     ARGB centercolor;
 116     GpWrapMode wrap;
 117     BOOL gamma;
 118     GpPointF center;
 119     GpPointF focus;
 120     REAL* blendfac;  /* blend factors */
 121     REAL* blendpos;  /* blend positions */
 122     INT blendcount;
 123 };
 124
 125 struct GpLineGradient{
 126     GpBrush brush;
 127     GpPointF startpoint;
 128     GpPointF endpoint;
 129     ARGB startcolor;
 130     ARGB endcolor;
 131     GpWrapMode wrap;
 132     BOOL gamma;
 133 };
 134
 135 struct GpTexture{
 136     GpBrush brush;
 137 };
 138
 139 struct GpPath{
 140     GpFillMode fill;
 141     GpPathData pathdata;
 142     BOOL newfigure; /* whether the next drawing action starts a new figure */
 143     INT datalen; /* size of the arrays in pathdata */
 144 };
 145
 146 struct GpMatrix{
 147     REAL matrix[6];
 148 };
 149
 150 struct GpPathIterator{
 151     GpPathData pathdata;
 152     INT subpath_pos;    /* for NextSubpath methods */
 153     INT marker_pos;     /* for NextMarker methods */
 154     INT pathtype_pos;   /* for NextPathType methods */
 155 };
 156
 157 struct GpCustomLineCap{
 158     GpPathData pathdata;
 159     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 160     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 161     REAL inset;     /* how much to adjust the end of the line */
 162     GpLineJoin join;
 163     REAL scale;
 164 };
 165
 166 struct GpImage{
 167     IPicture* picture;
 168     ImageType type;
 169     UINT flags;
 170 };
 171
 172 struct GpMetafile{
 173     GpImage image;
 174     GpRectF bounds;
 175     GpUnit unit;
 176 };
 177
 178 struct GpBitmap{
 179     GpImage image;
 180     INT width;
 181     INT height;
 182     PixelFormat format;
 183     ImageLockMode lockmode;
 184     INT numlocks;
 185     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 186 };
 187
 188 struct GpImageAttributes{
 189     WrapMode wrap;
 190 };
 191
 192 struct GpFont{
 193     LOGFONTW lfw;
 194     REAL emSize;
 195     Unit unit;
 196 };
 197
 198 struct GpStringFormat{
 199     INT attr;
 200     LANGID lang;
 201     LANGID digitlang;
 202     StringAlignment align;
 203     StringTrimming trimming;
 204     HotkeyPrefix hkprefix;
 205     StringAlignment vertalign;
 206     StringDigitSubstitute digitsub;
 207     INT tabcount;
 208     REAL firsttab;
 209     REAL *tabs;
 210 };
 211
 212 struct GpFontCollection{
 213     GpFontFamily* FontFamilies;
 214 };
 215
 216 struct GpFontFamily{
 217     NEWTEXTMETRICW tmw;
 218     WCHAR FamilyName[LF_FACESIZE];
 219 };
 220
 221 typedef struct region_element
 222 {
 223     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 224     union
 225     {
 226         GpRectF rect;
 227         struct
 228         {
 229             GpPath* path;
 230             struct
 231             {
 232                 DWORD size;
 233                 DWORD magic;
 234                 DWORD count;
 235                 DWORD flags;
 236             } pathheader;
 237         } pathdata;
 238         struct
 239         {
 240             struct region_element *left;  /* the original region */
 241             struct region_element *right; /* what *left was combined with */
 242         } combine;
 243     } elementdata;
 244 } region_element;
 245
 246 struct GpRegion{
 247     struct
 248     {
 249         DWORD size;
 250         DWORD checksum;
 251         DWORD magic;
 252         DWORD num_children;
 253     } header;
 254     region_element node;
 255 };
 256
 257 #endif