[gdiplus]
[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 void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
84 BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
85
86 struct GpPen{
87 UINT style;
88 GpUnit unit;
89 REAL width;
90 GpLineCap endcap;
91 GpLineCap startcap;
92 GpDashCap dashcap;
93 GpCustomLineCap *customstart;
94 GpCustomLineCap *customend;
95 GpLineJoin join;
96 REAL miterlimit;
97 GpDashStyle dash;
98 REAL *dashes;
99 INT numdashes;
100 REAL offset; /* dash offset */
101 GpBrush *brush;
102 GpPenAlignment align;
103 };
104
105 struct GpGraphics{
106 HDC hdc;
107 HWND hwnd;
108 BOOL owndc;
109 SmoothingMode smoothing;
110 CompositingQuality compqual;
111 InterpolationMode interpolation;
112 PixelOffsetMode pixeloffset;
113 CompositingMode compmode;
114 TextRenderingHint texthint;
115 GpUnit unit; /* page unit */
116 REAL scale; /* page scale */
117 GpMatrix * worldtrans; /* world transform */
118 BOOL busy; /* hdc handle obtained by GdipGetDC */
119 GpRegion *clip;
120 UINT textcontrast; /* not used yet. get/set only */
121 struct list containers;
122 GraphicsContainer contid; /* last-issued container ID */
123 };
124
125 struct GpBrush{
126 HBRUSH gdibrush;
127 GpBrushType bt;
128 LOGBRUSH lb;
129 };
130
131 struct GpHatch{
132 GpBrush brush;
133 HatchStyle hatchstyle;
134 ARGB forecol;
135 ARGB backcol;
136 };
137
138 struct GpSolidFill{
139 GpBrush brush;
140 ARGB color;
141 HBITMAP bmp;
142 };
143
144 struct GpPathGradient{
145 GpBrush brush;
146 PathData pathdata;
147 ARGB centercolor;
148 GpWrapMode wrap;
149 BOOL gamma;
150 GpPointF center;
151 GpPointF focus;
152 REAL* blendfac; /* blend factors */
153 REAL* blendpos; /* blend positions */
154 INT blendcount;
155 };
156
157 struct GpLineGradient{
158 GpBrush brush;
159 GpPointF startpoint;
160 GpPointF endpoint;
161 ARGB startcolor;
162 ARGB endcolor;
163 RectF rect;
164 GpWrapMode wrap;
165 BOOL gamma;
166 REAL* blendfac; /* blend factors */
167 REAL* blendpos; /* blend positions */
168 INT blendcount;
169 ARGB* pblendcolor; /* preset blend colors */
170 REAL* pblendpos; /* preset blend positions */
171 INT pblendcount;
172 };
173
174 struct GpTexture{
175 GpBrush brush;
176 GpMatrix *transform;
177 WrapMode wrap; /* not used yet */
178 };
179
180 struct GpPath{
181 GpFillMode fill;
182 GpPathData pathdata;
183 BOOL newfigure; /* whether the next drawing action starts a new figure */
184 INT datalen; /* size of the arrays in pathdata */
185 };
186
187 struct GpMatrix{
188 REAL matrix[6];
189 };
190
191 struct GpPathIterator{
192 GpPathData pathdata;
193 INT subpath_pos; /* for NextSubpath methods */
194 INT marker_pos; /* for NextMarker methods */
195 INT pathtype_pos; /* for NextPathType methods */
196 };
197
198 struct GpCustomLineCap{
199 GpPathData pathdata;
200 BOOL fill; /* TRUE for fill, FALSE for stroke */
201 GpLineCap cap; /* as far as I can tell, this value is ignored */
202 REAL inset; /* how much to adjust the end of the line */
203 GpLineJoin join;
204 REAL scale;
205 };
206
207 struct GpAdustableArrowCap{
208 GpCustomLineCap cap;
209 };
210
211 struct GpImage{
212 IPicture* picture;
213 ImageType type;
214 GUID format;
215 UINT flags;
216 };
217
218 struct GpMetafile{
219 GpImage image;
220 GpRectF bounds;
221 GpUnit unit;
222 };
223
224 struct GpBitmap{
225 GpImage image;
226 INT width;
227 INT height;
228 PixelFormat format;
229 ImageLockMode lockmode;
230 INT numlocks;
231 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
232 HBITMAP hbitmap;
233 HDC hdc;
234 BYTE *bits; /* actual image bits if this is a DIB */
235 INT stride; /* stride of bits if this is a DIB */
236 };
237
238 struct GpCachedBitmap{
239 GpImage *image;
240 };
241
242 struct color_key{
243 BOOL enabled;
244 ARGB low;
245 ARGB high;
246 };
247
248 struct GpImageAttributes{
249 WrapMode wrap;
250 struct color_key colorkeys[ColorAdjustTypeCount];
251 };
252
253 struct GpFont{
254 LOGFONTW lfw;
255 REAL emSize;
256 UINT height;
257 LONG line_spacing;
258 Unit unit;
259 };
260
261 struct GpStringFormat{
262 INT attr;
263 LANGID lang;
264 LANGID digitlang;
265 StringAlignment align;
266 StringTrimming trimming;
267 HotkeyPrefix hkprefix;
268 StringAlignment vertalign;
269 StringDigitSubstitute digitsub;
270 INT tabcount;
271 REAL firsttab;
272 REAL *tabs;
273 };
274
275 struct GpFontCollection{
276 GpFontFamily **FontFamilies;
277 INT count;
278 INT allocated;
279 };
280
281 struct GpFontFamily{
282 NEWTEXTMETRICW tmw;
283 WCHAR FamilyName[LF_FACESIZE];
284 };
285
286 /* internal use */
287 typedef enum RegionType
288 {
289 RegionDataRect = 0x10000000,
290 RegionDataPath = 0x10000001,
291 RegionDataEmptyRect = 0x10000002,
292 RegionDataInfiniteRect = 0x10000003,
293 } RegionType;
294
295 struct region_element
296 {
297 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
298 union
299 {
300 GpRectF rect;
301 struct
302 {
303 GpPath* path;
304 struct
305 {
306 DWORD size;
307 DWORD magic;
308 DWORD count;
309 DWORD flags;
310 } pathheader;
311 } pathdata;
312 struct
313 {
314 struct region_element *left; /* the original region */
315 struct region_element *right; /* what *left was combined with */
316 } combine;
317 } elementdata;
318 };
319
320 struct GpRegion{
321 struct
322 {
323 DWORD size;
324 DWORD checksum;
325 DWORD magic;
326 DWORD num_children;
327 } header;
328 region_element node;
329 };
330
331 #endif