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