gdiplus: Implement GetDC for metafiles.
[wine.git] / dlls / gdiplus / gdiplus_private.h
blobd6888d99396fcf064e0830d181410fa7162766aa
1 /*
2 * Copyright (C) 2007 Google (Evan Stade)
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.
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.
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
19 #ifndef __WINE_GP_PRIVATE_H_
20 #define __WINE_GP_PRIVATE_H_
22 #include <math.h>
23 #include <stdarg.h>
25 #include "windef.h"
26 #include "wingdi.h"
27 #include "winbase.h"
28 #include "winuser.h"
30 #include "objbase.h"
31 #include "ocidl.h"
32 #include "wine/list.h"
34 #include "gdiplus.h"
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)
41 #define VERSION_MAGIC 0xdbc01001
42 #define TENSION_CONST (0.3)
44 COLORREF ARGB2COLORREF(ARGB color) DECLSPEC_HIDDEN;
45 HBITMAP ARGB2BMP(ARGB color) DECLSPEC_HIDDEN;
46 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
47 REAL startAngle, REAL sweepAngle) DECLSPEC_HIDDEN;
48 extern REAL gdiplus_atan2(REAL dy, REAL dx) DECLSPEC_HIDDEN;
49 extern GpStatus hresult_to_status(HRESULT res) DECLSPEC_HIDDEN;
50 extern REAL convert_unit(REAL logpixels, GpUnit unit) DECLSPEC_HIDDEN;
52 extern GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics) DECLSPEC_HIDDEN;
54 extern GpStatus METAFILE_GetGraphicsContext(GpMetafile* metafile, GpGraphics **result) DECLSPEC_HIDDEN;
55 extern GpStatus METAFILE_GetDC(GpMetafile* metafile, HDC *hdc) DECLSPEC_HIDDEN;
56 extern GpStatus METAFILE_ReleaseDC(GpMetafile* metafile, HDC hdc) DECLSPEC_HIDDEN;
57 extern GpStatus METAFILE_GraphicsDeleted(GpMetafile* metafile) DECLSPEC_HIDDEN;
59 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
60 REAL *y1, REAL *x2, REAL *y2) DECLSPEC_HIDDEN;
61 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
62 REAL tension, REAL *x, REAL *y) DECLSPEC_HIDDEN;
64 extern void free_installed_fonts(void) DECLSPEC_HIDDEN;
66 extern void get_font_hfont(GpGraphics *graphics, GDIPCONST GpFont *font, HFONT *hfont) DECLSPEC_HIDDEN;
68 extern BOOL lengthen_path(GpPath *path, INT len) DECLSPEC_HIDDEN;
70 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path) DECLSPEC_HIDDEN;
72 typedef struct region_element region_element;
73 extern void delete_element(region_element *element) DECLSPEC_HIDDEN;
75 extern GpStatus get_hatch_data(HatchStyle hatchstyle, const char **result) DECLSPEC_HIDDEN;
77 static inline INT roundr(REAL x)
79 return (INT) floorf(x + 0.5);
82 static inline INT ceilr(REAL x)
84 return (INT) ceilf(x);
87 static inline REAL deg2rad(REAL degrees)
89 return M_PI * degrees / 180.0;
92 static inline ARGB color_over(ARGB bg, ARGB fg)
94 BYTE b, g, r, a;
95 BYTE bg_alpha, fg_alpha;
97 fg_alpha = (fg>>24)&0xff;
99 if (fg_alpha == 0xff) return fg;
101 if (fg_alpha == 0) return bg;
103 bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
105 if (bg_alpha == 0) return fg;
107 a = bg_alpha + fg_alpha;
108 b = ((bg&0xff)*bg_alpha + (fg&0xff)*fg_alpha)/a;
109 g = (((bg>>8)&0xff)*bg_alpha + ((fg>>8)&0xff)*fg_alpha)/a;
110 r = (((bg>>16)&0xff)*bg_alpha + ((fg>>16)&0xff)*fg_alpha)/a;
112 return (a<<24)|(r<<16)|(g<<8)|b;
115 extern const char *debugstr_rectf(CONST RectF* rc) DECLSPEC_HIDDEN;
117 extern const char *debugstr_pointf(CONST PointF* pt) DECLSPEC_HIDDEN;
119 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
120 BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride) DECLSPEC_HIDDEN;
122 extern GpStatus convert_pixels(INT width, INT height,
123 INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
124 INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette) DECLSPEC_HIDDEN;
126 struct GpPen{
127 UINT style;
128 GpUnit unit;
129 REAL width;
130 GpLineCap endcap;
131 GpLineCap startcap;
132 GpDashCap dashcap;
133 GpCustomLineCap *customstart;
134 GpCustomLineCap *customend;
135 GpLineJoin join;
136 REAL miterlimit;
137 GpDashStyle dash;
138 REAL *dashes;
139 INT numdashes;
140 REAL offset; /* dash offset */
141 GpBrush *brush;
142 GpPenAlignment align;
145 struct GpGraphics{
146 HDC hdc;
147 HWND hwnd;
148 BOOL owndc;
149 GpImage *image;
150 SmoothingMode smoothing;
151 CompositingQuality compqual;
152 InterpolationMode interpolation;
153 PixelOffsetMode pixeloffset;
154 CompositingMode compmode;
155 TextRenderingHint texthint;
156 GpUnit unit; /* page unit */
157 REAL scale; /* page scale */
158 GpMatrix * worldtrans; /* world transform */
159 BOOL busy; /* hdc handle obtained by GdipGetDC */
160 GpRegion *clip;
161 UINT textcontrast; /* not used yet. get/set only */
162 struct list containers;
163 GraphicsContainer contid; /* last-issued container ID */
164 /* For giving the caller an HDC when we technically can't: */
165 HBITMAP temp_hbitmap;
166 int temp_hbitmap_width;
167 int temp_hbitmap_height;
168 BYTE *temp_bits;
169 HDC temp_hdc;
172 struct GpBrush{
173 HBRUSH gdibrush;
174 GpBrushType bt;
175 LOGBRUSH lb;
178 struct GpHatch{
179 GpBrush brush;
180 HatchStyle hatchstyle;
181 ARGB forecol;
182 ARGB backcol;
185 struct GpSolidFill{
186 GpBrush brush;
187 ARGB color;
188 HBITMAP bmp;
191 struct GpPathGradient{
192 GpBrush brush;
193 PathData pathdata;
194 ARGB centercolor;
195 GpWrapMode wrap;
196 BOOL gamma;
197 GpPointF center;
198 GpPointF focus;
199 REAL* blendfac; /* blend factors */
200 REAL* blendpos; /* blend positions */
201 INT blendcount;
204 struct GpLineGradient{
205 GpBrush brush;
206 GpPointF startpoint;
207 GpPointF endpoint;
208 ARGB startcolor;
209 ARGB endcolor;
210 RectF rect;
211 GpWrapMode wrap;
212 BOOL gamma;
213 REAL* blendfac; /* blend factors */
214 REAL* blendpos; /* blend positions */
215 INT blendcount;
216 ARGB* pblendcolor; /* preset blend colors */
217 REAL* pblendpos; /* preset blend positions */
218 INT pblendcount;
221 struct GpTexture{
222 GpBrush brush;
223 GpMatrix *transform;
224 GpImage *image;
225 GpImageAttributes *imageattributes;
226 BYTE *bitmap_bits; /* image bits converted to ARGB and run through imageattributes */
229 struct GpPath{
230 GpFillMode fill;
231 GpPathData pathdata;
232 BOOL newfigure; /* whether the next drawing action starts a new figure */
233 INT datalen; /* size of the arrays in pathdata */
236 struct GpMatrix{
237 REAL matrix[6];
240 struct GpPathIterator{
241 GpPathData pathdata;
242 INT subpath_pos; /* for NextSubpath methods */
243 INT marker_pos; /* for NextMarker methods */
244 INT pathtype_pos; /* for NextPathType methods */
247 struct GpCustomLineCap{
248 GpPathData pathdata;
249 BOOL fill; /* TRUE for fill, FALSE for stroke */
250 GpLineCap cap; /* as far as I can tell, this value is ignored */
251 REAL inset; /* how much to adjust the end of the line */
252 GpLineJoin join;
253 REAL scale;
256 struct GpAdustableArrowCap{
257 GpCustomLineCap cap;
260 struct GpImage{
261 IPicture* picture;
262 ImageType type;
263 GUID format;
264 UINT flags;
265 UINT palette_flags;
266 UINT palette_count;
267 UINT palette_size;
268 ARGB *palette_entries;
269 REAL xres, yres;
272 struct GpMetafile{
273 GpImage image;
274 GpRectF bounds;
275 GpUnit unit;
276 MetafileType metafile_type;
277 HDC record_dc;
278 GpGraphics *record_graphics;
279 BYTE *comment_data;
280 DWORD comment_data_size;
281 DWORD comment_data_length;
282 HENHMETAFILE hemf;
285 struct GpBitmap{
286 GpImage image;
287 INT width;
288 INT height;
289 PixelFormat format;
290 ImageLockMode lockmode;
291 INT numlocks;
292 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
293 HBITMAP hbitmap;
294 HDC hdc;
295 BYTE *bits; /* actual image bits if this is a DIB */
296 INT stride; /* stride of bits if this is a DIB */
297 BYTE *own_bits; /* image bits that need to be freed with this object */
298 INT lockx, locky; /* X and Y coordinates of the rect when a bitmap is locked for writing. */
301 struct GpCachedBitmap{
302 GpImage *image;
305 struct color_key{
306 BOOL enabled;
307 ARGB low;
308 ARGB high;
311 struct color_matrix{
312 BOOL enabled;
313 ColorMatrixFlags flags;
314 ColorMatrix colormatrix;
315 ColorMatrix graymatrix;
318 struct color_remap_table{
319 BOOL enabled;
320 INT mapsize;
321 GDIPCONST ColorMap *colormap;
324 struct GpImageAttributes{
325 WrapMode wrap;
326 ARGB outside_color;
327 BOOL clamp;
328 struct color_key colorkeys[ColorAdjustTypeCount];
329 struct color_matrix colormatrices[ColorAdjustTypeCount];
330 struct color_remap_table colorremaptables[ColorAdjustTypeCount];
331 BOOL gamma_enabled[ColorAdjustTypeCount];
332 REAL gamma[ColorAdjustTypeCount];
335 struct GpFont{
336 LOGFONTW lfw;
337 REAL emSize;
338 REAL pixel_size;
339 UINT height;
340 LONG line_spacing;
341 Unit unit;
344 struct GpStringFormat{
345 INT attr;
346 LANGID lang;
347 LANGID digitlang;
348 StringAlignment align;
349 StringTrimming trimming;
350 HotkeyPrefix hkprefix;
351 StringAlignment vertalign;
352 StringDigitSubstitute digitsub;
353 INT tabcount;
354 REAL firsttab;
355 REAL *tabs;
356 CharacterRange *character_ranges;
357 INT range_count;
360 struct GpFontCollection{
361 GpFontFamily **FontFamilies;
362 INT count;
363 INT allocated;
366 struct GpFontFamily{
367 NEWTEXTMETRICW tmw;
368 WCHAR FamilyName[LF_FACESIZE];
371 /* internal use */
372 typedef enum RegionType
374 RegionDataRect = 0x10000000,
375 RegionDataPath = 0x10000001,
376 RegionDataEmptyRect = 0x10000002,
377 RegionDataInfiniteRect = 0x10000003,
378 } RegionType;
380 struct region_element
382 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
383 union
385 GpRectF rect;
386 struct
388 GpPath* path;
389 struct
391 DWORD size;
392 DWORD magic;
393 DWORD count;
394 DWORD flags;
395 } pathheader;
396 } pathdata;
397 struct
399 struct region_element *left; /* the original region */
400 struct region_element *right; /* what *left was combined with */
401 } combine;
402 } elementdata;
405 struct GpRegion{
406 struct
408 DWORD size;
409 DWORD checksum;
410 DWORD magic;
411 DWORD num_children;
412 } header;
413 region_element node;
416 typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
417 GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
418 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
419 INT lineno, const RectF *bounds, void *user_data);
421 GpStatus gdip_format_string(HDC hdc,
422 GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
423 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
424 gdip_format_string_callback callback, void *user_data) DECLSPEC_HIDDEN;
426 #endif