8e26eb18db96ace90248d48c16353547379b70fa
[reactos.git] / reactos / 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 #include "wine/list.h"
33
34 #include "gdiplus.h"
35
36 #define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
37 #define MAX_ARC_PTS (13)
38 #define MAX_DASHLEN (16) /* this is a limitation of gdi */
39 #define INCH_HIMETRIC (2540)
40
41 #define VERSION_MAGIC 0xdbc01001
42 #define TENSION_CONST (0.3)
43
44 COLORREF ARGB2COLORREF(ARGB color);
45 HBITMAP ARGB2BMP(ARGB color);
46 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
47 REAL startAngle, REAL sweepAngle);
48 extern REAL gdiplus_atan2(REAL dy, REAL dx);
49 extern GpStatus hresult_to_status(HRESULT res);
50 extern REAL convert_unit(HDC hdc, GpUnit unit);
51
52 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
53 REAL *y1, REAL *x2, REAL *y2);
54 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
55 REAL tension, REAL *x, REAL *y);
56
57 extern void free_installed_fonts(void);
58
59 extern BOOL lengthen_path(GpPath *path, INT len);
60
61 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
62
63 typedef struct region_element region_element;
64 extern void delete_element(region_element *element);
65
66 static inline INT roundr(REAL x)
67 {
68 return (INT) floorf(x + 0.5);
69 }
70
71 static inline INT ceilr(REAL x)
72 {
73 return (INT) ceilf(x);
74 }
75
76 static inline REAL deg2rad(REAL degrees)
77 {
78 return M_PI * degrees / 180.0;
79 }
80
81 extern const char *debugstr_rectf(CONST RectF* rc);
82
83 extern const char *debugstr_pointf(CONST PointF* pt);
84
85 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
86 BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
87
88 extern GpStatus convert_pixels(UINT width, UINT height,
89 INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
90 INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette);
91
92 struct GpPen{
93 UINT style;
94 GpUnit unit;
95 REAL width;
96 GpLineCap endcap;
97 GpLineCap startcap;
98 GpDashCap dashcap;
99 GpCustomLineCap *customstart;
100 GpCustomLineCap *customend;
101 GpLineJoin join;
102 REAL miterlimit;
103 GpDashStyle dash;
104 REAL *dashes;
105 INT numdashes;
106 REAL offset; /* dash offset */
107 GpBrush *brush;
108 GpPenAlignment align;
109 };
110
111 struct GpGraphics{
112 HDC hdc;
113 HWND hwnd;
114 BOOL owndc;
115 SmoothingMode smoothing;
116 CompositingQuality compqual;
117 InterpolationMode interpolation;
118 PixelOffsetMode pixeloffset;
119 CompositingMode compmode;
120 TextRenderingHint texthint;
121 GpUnit unit; /* page unit */
122 REAL scale; /* page scale */
123 GpMatrix * worldtrans; /* world transform */
124 BOOL busy; /* hdc handle obtained by GdipGetDC */
125 GpRegion *clip;
126 UINT textcontrast; /* not used yet. get/set only */
127 struct list containers;
128 GraphicsContainer contid; /* last-issued container ID */
129 };
130
131 struct GpBrush{
132 HBRUSH gdibrush;
133 GpBrushType bt;
134 LOGBRUSH lb;
135 };
136
137 struct GpHatch{
138 GpBrush brush;
139 HatchStyle hatchstyle;
140 ARGB forecol;
141 ARGB backcol;
142 };
143
144 struct GpSolidFill{
145 GpBrush brush;
146 ARGB color;
147 HBITMAP bmp;
148 };
149
150 struct GpPathGradient{
151 GpBrush brush;
152 PathData pathdata;
153 ARGB centercolor;
154 GpWrapMode wrap;
155 BOOL gamma;
156 GpPointF center;
157 GpPointF focus;
158 REAL* blendfac; /* blend factors */
159 REAL* blendpos; /* blend positions */
160 INT blendcount;
161 };
162
163 struct GpLineGradient{
164 GpBrush brush;
165 GpPointF startpoint;
166 GpPointF endpoint;
167 ARGB startcolor;
168 ARGB endcolor;
169 RectF rect;
170 GpWrapMode wrap;
171 BOOL gamma;
172 REAL* blendfac; /* blend factors */
173 REAL* blendpos; /* blend positions */
174 INT blendcount;
175 ARGB* pblendcolor; /* preset blend colors */
176 REAL* pblendpos; /* preset blend positions */
177 INT pblendcount;
178 };
179
180 struct GpTexture{
181 GpBrush brush;
182 GpMatrix *transform;
183 GpImage *image;
184 WrapMode wrap; /* not used yet */
185 };
186
187 struct GpPath{
188 GpFillMode fill;
189 GpPathData pathdata;
190 BOOL newfigure; /* whether the next drawing action starts a new figure */
191 INT datalen; /* size of the arrays in pathdata */
192 };
193
194 struct GpMatrix{
195 REAL matrix[6];
196 };
197
198 struct GpPathIterator{
199 GpPathData pathdata;
200 INT subpath_pos; /* for NextSubpath methods */
201 INT marker_pos; /* for NextMarker methods */
202 INT pathtype_pos; /* for NextPathType methods */
203 };
204
205 struct GpCustomLineCap{
206 GpPathData pathdata;
207 BOOL fill; /* TRUE for fill, FALSE for stroke */
208 GpLineCap cap; /* as far as I can tell, this value is ignored */
209 REAL inset; /* how much to adjust the end of the line */
210 GpLineJoin join;
211 REAL scale;
212 };
213
214 struct GpAdustableArrowCap{
215 GpCustomLineCap cap;
216 };
217
218 struct GpImage{
219 IPicture* picture;
220 ImageType type;
221 GUID format;
222 UINT flags;
223 UINT palette_flags;
224 UINT palette_count;
225 UINT palette_size;
226 ARGB *palette_entries;
227 REAL xres, yres;
228 };
229
230 struct GpMetafile{
231 GpImage image;
232 GpRectF bounds;
233 GpUnit unit;
234 };
235
236 struct GpBitmap{
237 GpImage image;
238 INT width;
239 INT height;
240 PixelFormat format;
241 ImageLockMode lockmode;
242 INT numlocks;
243 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
244 HBITMAP hbitmap;
245 HDC hdc;
246 BYTE *bits; /* actual image bits if this is a DIB */
247 INT stride; /* stride of bits if this is a DIB */
248 };
249
250 struct GpCachedBitmap{
251 GpImage *image;
252 };
253
254 struct color_key{
255 BOOL enabled;
256 ARGB low;
257 ARGB high;
258 };
259
260 struct color_matrix{
261 BOOL enabled;
262 ColorMatrixFlags flags;
263 ColorMatrix colormatrix;
264 ColorMatrix graymatrix;
265 };
266
267 struct GpImageAttributes{
268 WrapMode wrap;
269 struct color_key colorkeys[ColorAdjustTypeCount];
270 struct color_matrix colormatrices[ColorAdjustTypeCount];
271 BOOL gamma_enabled[ColorAdjustTypeCount];
272 REAL gamma[ColorAdjustTypeCount];
273 };
274
275 struct GpFont{
276 LOGFONTW lfw;
277 REAL emSize;
278 UINT height;
279 LONG line_spacing;
280 Unit unit;
281 };
282
283 struct GpStringFormat{
284 INT attr;
285 LANGID lang;
286 LANGID digitlang;
287 StringAlignment align;
288 StringTrimming trimming;
289 HotkeyPrefix hkprefix;
290 StringAlignment vertalign;
291 StringDigitSubstitute digitsub;
292 INT tabcount;
293 REAL firsttab;
294 REAL *tabs;
295 CharacterRange *character_ranges;
296 INT range_count;
297 };
298
299 struct GpFontCollection{
300 GpFontFamily **FontFamilies;
301 INT count;
302 INT allocated;
303 };
304
305 struct GpFontFamily{
306 NEWTEXTMETRICW tmw;
307 WCHAR FamilyName[LF_FACESIZE];
308 };
309
310 /* internal use */
311 typedef enum RegionType
312 {
313 RegionDataRect = 0x10000000,
314 RegionDataPath = 0x10000001,
315 RegionDataEmptyRect = 0x10000002,
316 RegionDataInfiniteRect = 0x10000003,
317 } RegionType;
318
319 struct region_element
320 {
321 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
322 union
323 {
324 GpRectF rect;
325 struct
326 {
327 GpPath* path;
328 struct
329 {
330 DWORD size;
331 DWORD magic;
332 DWORD count;
333 DWORD flags;
334 } pathheader;
335 } pathdata;
336 struct
337 {
338 struct region_element *left; /* the original region */
339 struct region_element *right; /* what *left was combined with */
340 } combine;
341 } elementdata;
342 };
343
344 struct GpRegion{
345 struct
346 {
347 DWORD size;
348 DWORD checksum;
349 DWORD magic;
350 DWORD num_children;
351 } header;
352 region_element node;
353 };
354
355 #endif