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     UINT textcontrast; /* not used yet. get/set only */
 104 };
 105
 106 struct GpBrush{
 107     HBRUSH gdibrush;
 108     GpBrushType bt;
 109     LOGBRUSH lb;
 110 };
 111
 112 struct GpSolidFill{
 113     GpBrush brush;
 114     ARGB color;
 115 };
 116
 117 struct GpPathGradient{
 118     GpBrush brush;
 119     PathData pathdata;
 120     ARGB centercolor;
 121     GpWrapMode wrap;
 122     BOOL gamma;
 123     GpPointF center;
 124     GpPointF focus;
 125     REAL* blendfac;  /* blend factors */
 126     REAL* blendpos;  /* blend positions */
 127     INT blendcount;
 128 };
 129
 130 struct GpLineGradient{
 131     GpBrush brush;
 132     GpPointF startpoint;
 133     GpPointF endpoint;
 134     ARGB startcolor;
 135     ARGB endcolor;
 136     GpWrapMode wrap;
 137     BOOL gamma;
 138 };
 139
 140 struct GpTexture{
 141     GpBrush brush;
 142     GpMatrix *transform;
 143     WrapMode wrap;  /* not used yet */
 144 };
 145
 146 struct GpPath{
 147     GpFillMode fill;
 148     GpPathData pathdata;
 149     BOOL newfigure; /* whether the next drawing action starts a new figure */
 150     INT datalen; /* size of the arrays in pathdata */
 151 };
 152
 153 struct GpMatrix{
 154     REAL matrix[6];
 155 };
 156
 157 struct GpPathIterator{
 158     GpPathData pathdata;
 159     INT subpath_pos;    /* for NextSubpath methods */
 160     INT marker_pos;     /* for NextMarker methods */
 161     INT pathtype_pos;   /* for NextPathType methods */
 162 };
 163
 164 struct GpCustomLineCap{
 165     GpPathData pathdata;
 166     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 167     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 168     REAL inset;     /* how much to adjust the end of the line */
 169     GpLineJoin join;
 170     REAL scale;
 171 };
 172
 173 struct GpAdustableArrowCap{
 174     GpCustomLineCap cap;
 175 };
 176
 177 struct GpImage{
 178     IPicture* picture;
 179     ImageType type;
 180     UINT flags;
 181 };
 182
 183 struct GpMetafile{
 184     GpImage image;
 185     GpRectF bounds;
 186     GpUnit unit;
 187 };
 188
 189 struct GpBitmap{
 190     GpImage image;
 191     INT width;
 192     INT height;
 193     PixelFormat format;
 194     ImageLockMode lockmode;
 195     INT numlocks;
 196     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 197 };
 198
 199 struct GpCachedBitmap{
 200     GpBitmap *bmp;
 201 };
 202
 203 struct GpImageAttributes{
 204     WrapMode wrap;
 205 };
 206
 207 struct GpFont{
 208     LOGFONTW lfw;
 209     REAL emSize;
 210     Unit unit;
 211 };
 212
 213 struct GpStringFormat{
 214     INT attr;
 215     LANGID lang;
 216     LANGID digitlang;
 217     StringAlignment align;
 218     StringTrimming trimming;
 219     HotkeyPrefix hkprefix;
 220     StringAlignment vertalign;
 221     StringDigitSubstitute digitsub;
 222     INT tabcount;
 223     REAL firsttab;
 224     REAL *tabs;
 225 };
 226
 227 struct GpFontCollection{
 228     GpFontFamily* FontFamilies;
 229 };
 230
 231 struct GpFontFamily{
 232     NEWTEXTMETRICW tmw;
 233     WCHAR FamilyName[LF_FACESIZE];
 234 };
 235
 236 /* internal use */
 237 typedef enum RegionType
 238 {
 239     RegionDataRect          = 0x10000000,
 240     RegionDataPath          = 0x10000001,
 241     RegionDataEmptyRect     = 0x10000002,
 242     RegionDataInfiniteRect  = 0x10000003,
 243 } RegionType;
 244
 245 struct region_element
 246 {
 247     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 248     union
 249     {
 250         GpRectF rect;
 251         struct
 252         {
 253             GpPath* path;
 254             struct
 255             {
 256                 DWORD size;
 257                 DWORD magic;
 258                 DWORD count;
 259                 DWORD flags;
 260             } pathheader;
 261         } pathdata;
 262         struct
 263         {
 264             struct region_element *left;  /* the original region */
 265             struct region_element *right; /* what *left was combined with */
 266         } combine;
 267     } elementdata;
 268 };
 269
 270 struct GpRegion{
 271     struct
 272     {
 273         DWORD size;
 274         DWORD checksum;
 275         DWORD magic;
 276         DWORD num_children;
 277     } header;
 278     region_element node;
 279 };
 280
 281 #endif