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 };
  99
 100 struct GpBrush{
 101     HBRUSH gdibrush;
 102     GpBrushType bt;
 103     LOGBRUSH lb;
 104 };
 105
 106 struct GpSolidFill{
 107     GpBrush brush;
 108     ARGB color;
 109 };
 110
 111 struct GpPathGradient{
 112     GpBrush brush;
 113     PathData pathdata;
 114     ARGB centercolor;
 115     GpWrapMode wrap;
 116     BOOL gamma;
 117     GpPointF center;
 118     GpPointF focus;
 119     REAL* blendfac;  /* blend factors */
 120     REAL* blendpos;  /* blend positions */
 121     INT blendcount;
 122 };
 123
 124 struct GpLineGradient{
 125     GpBrush brush;
 126     GpPointF startpoint;
 127     GpPointF endpoint;
 128     ARGB startcolor;
 129     ARGB endcolor;
 130     GpWrapMode wrap;
 131     BOOL gamma;
 132 };
 133
 134 struct GpTexture{
 135     GpBrush brush;
 136 };
 137
 138 struct GpPath{
 139     GpFillMode fill;
 140     GpPathData pathdata;
 141     BOOL newfigure; /* whether the next drawing action starts a new figure */
 142     INT datalen; /* size of the arrays in pathdata */
 143 };
 144
 145 struct GpMatrix{
 146     REAL matrix[6];
 147 };
 148
 149 struct GpPathIterator{
 150     GpPathData pathdata;
 151     INT subpath_pos;    /* for NextSubpath methods */
 152     INT marker_pos;     /* for NextMarker methods */
 153     INT pathtype_pos;   /* for NextPathType methods */
 154 };
 155
 156 struct GpCustomLineCap{
 157     GpPathData pathdata;
 158     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 159     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 160     REAL inset;     /* how much to adjust the end of the line */
 161     GpLineJoin join;
 162     REAL scale;
 163 };
 164
 165 struct GpImage{
 166     IPicture* picture;
 167     ImageType type;
 168     UINT flags;
 169 };
 170
 171 struct GpMetafile{
 172     GpImage image;
 173     GpRectF bounds;
 174     GpUnit unit;
 175 };
 176
 177 struct GpBitmap{
 178     GpImage image;
 179     INT width;
 180     INT height;
 181     PixelFormat format;
 182     ImageLockMode lockmode;
 183     INT numlocks;
 184     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 185 };
 186
 187 struct GpImageAttributes{
 188     WrapMode wrap;
 189 };
 190
 191 struct GpFont{
 192     LOGFONTW lfw;
 193     REAL emSize;
 194     Unit unit;
 195 };
 196
 197 struct GpStringFormat{
 198     INT attr;
 199     LANGID lang;
 200     LANGID digitlang;
 201     StringAlignment align;
 202     StringTrimming trimming;
 203     HotkeyPrefix hkprefix;
 204     StringAlignment vertalign;
 205     StringDigitSubstitute digitsub;
 206     INT tabcount;
 207     REAL firsttab;
 208     REAL *tabs;
 209 };
 210
 211 struct GpFontCollection{
 212     GpFontFamily* FontFamilies;
 213 };
 214
 215 struct GpFontFamily{
 216     NEWTEXTMETRICW tmw;
 217     WCHAR FamilyName[LF_FACESIZE];
 218 };
 219
 220 typedef struct region_element
 221 {
 222     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 223     union
 224     {
 225         GpRectF rect;
 226         struct
 227         {
 228             GpPath* path;
 229             struct
 230             {
 231                 DWORD size;
 232                 DWORD magic;
 233                 DWORD count;
 234                 DWORD flags;
 235             } pathheader;
 236         } pathdata;
 237         struct
 238         {
 239             struct region_element *left;  /* the original region */
 240             struct region_element *right; /* what *left was combined with */
 241         } combine;
 242     } elementdata;
 243 } region_element;
 244
 245 struct GpRegion{
 246     struct
 247     {
 248         DWORD size;
 249         DWORD checksum;
 250         DWORD magic;
 251         DWORD num_children;
 252     } header;
 253     region_element node;
 254 };
 255
 256 #endif