658f15e488e988341cef95e4ff3390a45367ab4e
[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
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 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
58
59 typedef struct region_element region_element;
60 extern inline void delete_element(region_element *element);
61
62 static inline INT roundr(REAL x)
63 {
64 return (INT) floor(x + 0.5);
65 }
66
67 static inline REAL deg2rad(REAL degrees)
68 {
69 return M_PI * degrees / 180.0;
70 }
71
72 struct GpPen{
73 UINT style;
74 GpUnit unit;
75 REAL width;
76 GpLineCap endcap;
77 GpLineCap startcap;
78 GpDashCap dashcap;
79 GpCustomLineCap *customstart;
80 GpCustomLineCap *customend;
81 GpLineJoin join;
82 REAL miterlimit;
83 GpDashStyle dash;
84 REAL *dashes;
85 INT numdashes;
86 REAL offset; /* dash offset */
87 GpBrush *brush;
88 GpPenAlignment align;
89 };
90
91 struct GpGraphics{
92 HDC hdc;
93 HWND hwnd;
94 SmoothingMode smoothing;
95 CompositingQuality compqual;
96 InterpolationMode interpolation;
97 PixelOffsetMode pixeloffset;
98 CompositingMode compmode;
99 TextRenderingHint texthint;
100 GpUnit unit; /* page unit */
101 REAL scale; /* page scale */
102 GpMatrix * worldtrans; /* world transform */
103 BOOL busy; /* hdc handle obtained by GdipGetDC */
104 GpRegion *clip;
105 UINT textcontrast; /* not used yet. get/set only */
106 };
107
108 struct GpBrush{
109 HBRUSH gdibrush;
110 GpBrushType bt;
111 LOGBRUSH lb;
112 };
113
114 struct GpHatch{
115 GpBrush brush;
116 HatchStyle hatchstyle;
117 ARGB forecol;
118 ARGB backcol;
119 };
120
121 struct GpSolidFill{
122 GpBrush brush;
123 ARGB color;
124 };
125
126 struct GpPathGradient{
127 GpBrush brush;
128 PathData pathdata;
129 ARGB centercolor;
130 GpWrapMode wrap;
131 BOOL gamma;
132 GpPointF center;
133 GpPointF focus;
134 REAL* blendfac; /* blend factors */
135 REAL* blendpos; /* blend positions */
136 INT blendcount;
137 };
138
139 struct GpLineGradient{
140 GpBrush brush;
141 GpPointF startpoint;
142 GpPointF endpoint;
143 ARGB startcolor;
144 ARGB endcolor;
145 GpWrapMode wrap;
146 BOOL gamma;
147 };
148
149 struct GpTexture{
150 GpBrush brush;
151 GpMatrix *transform;
152 WrapMode wrap; /* not used yet */
153 };
154
155 struct GpPath{
156 GpFillMode fill;
157 GpPathData pathdata;
158 BOOL newfigure; /* whether the next drawing action starts a new figure */
159 INT datalen; /* size of the arrays in pathdata */
160 };
161
162 struct GpMatrix{
163 REAL matrix[6];
164 };
165
166 struct GpPathIterator{
167 GpPathData pathdata;
168 INT subpath_pos; /* for NextSubpath methods */
169 INT marker_pos; /* for NextMarker methods */
170 INT pathtype_pos; /* for NextPathType methods */
171 };
172
173 struct GpCustomLineCap{
174 GpPathData pathdata;
175 BOOL fill; /* TRUE for fill, FALSE for stroke */
176 GpLineCap cap; /* as far as I can tell, this value is ignored */
177 REAL inset; /* how much to adjust the end of the line */
178 GpLineJoin join;
179 REAL scale;
180 };
181
182 struct GpAdustableArrowCap{
183 GpCustomLineCap cap;
184 };
185
186 struct GpImage{
187 IPicture* picture;
188 ImageType type;
189 UINT flags;
190 };
191
192 struct GpMetafile{
193 GpImage image;
194 GpRectF bounds;
195 GpUnit unit;
196 };
197
198 struct GpBitmap{
199 GpImage image;
200 INT width;
201 INT height;
202 PixelFormat format;
203 ImageLockMode lockmode;
204 INT numlocks;
205 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
206 };
207
208 struct GpCachedBitmap{
209 GpImage *image;
210 };
211
212 struct GpImageAttributes{
213 WrapMode wrap;
214 };
215
216 struct GpFont{
217 LOGFONTW lfw;
218 REAL emSize;
219 UINT height;
220 LONG line_spacing;
221 Unit unit;
222 };
223
224 struct GpStringFormat{
225 INT attr;
226 LANGID lang;
227 LANGID digitlang;
228 StringAlignment align;
229 StringTrimming trimming;
230 HotkeyPrefix hkprefix;
231 StringAlignment vertalign;
232 StringDigitSubstitute digitsub;
233 INT tabcount;
234 REAL firsttab;
235 REAL *tabs;
236 };
237
238 struct GpFontCollection{
239 GpFontFamily **FontFamilies;
240 INT count;
241 };
242
243 struct GpFontFamily{
244 NEWTEXTMETRICW tmw;
245 WCHAR FamilyName[LF_FACESIZE];
246 };
247
248 /* internal use */
249 typedef enum RegionType
250 {
251 RegionDataRect = 0x10000000,
252 RegionDataPath = 0x10000001,
253 RegionDataEmptyRect = 0x10000002,
254 RegionDataInfiniteRect = 0x10000003,
255 } RegionType;
256
257 struct region_element
258 {
259 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
260 union
261 {
262 GpRectF rect;
263 struct
264 {
265 GpPath* path;
266 struct
267 {
268 DWORD size;
269 DWORD magic;
270 DWORD count;
271 DWORD flags;
272 } pathheader;
273 } pathdata;
274 struct
275 {
276 struct region_element *left; /* the original region */
277 struct region_element *right; /* what *left was combined with */
278 } combine;
279 } elementdata;
280 };
281
282 struct GpRegion{
283 struct
284 {
285 DWORD size;
286 DWORD checksum;
287 DWORD magic;
288 DWORD num_children;
289 } header;
290 region_element node;
291 };
292
293 #endif