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b311480e | 1 | // Created on: 2011-10-20 |
2 | // Created by: Sergey ZERCHANINOV | |
3 | // Copyright (c) 2011-2012 OPEN CASCADE SAS | |
4 | // | |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
7fd59977 | 20 | |
5f8b738e | 21 | #include <OpenGl_GlCore11.hxx> |
22 | ||
2166f0fa | 23 | #include <OpenGl_GraphicDriver.hxx> |
7fd59977 | 24 | |
2166f0fa | 25 | #include <OSD_FontAspect.hxx> |
7fd59977 | 26 | |
2166f0fa SK |
27 | #include <OpenGl_Display.hxx> |
28 | #include <OpenGl_AspectText.hxx> | |
29 | #include <OpenGl_TextParam.hxx> | |
7fd59977 | 30 | |
d64e6d05 | 31 | #include <GL/glu.h> |
32 | ||
2166f0fa | 33 | /*----------------------------------------------------------------------*/ |
7fd59977 | 34 | |
2166f0fa SK |
35 | struct OpenGl_LAYER_PROP |
36 | { | |
37 | int ListId; | |
7fd59977 | 38 | |
2166f0fa SK |
39 | TEL_COLOUR Color; |
40 | int NbPoints; | |
41 | int LineType; | |
42 | float LineWidth; | |
43 | int FontCurrent; | |
7fd59977 | 44 | |
2166f0fa | 45 | Standard_Boolean FontChanged; |
7fd59977 | 46 | |
2166f0fa SK |
47 | OpenGl_AspectText AspectText; |
48 | OpenGl_TextParam TextParam; | |
49 | }; | |
7fd59977 | 50 | |
2166f0fa | 51 | /*----------------------------------------------------------------------*/ |
7fd59977 | 52 | |
2166f0fa SK |
53 | static const TEL_COLOUR myDefaultColor = {{ 1.F, 1.F, 1.F, 1.F }}; |
54 | static const CALL_DEF_CONTEXTTEXT myDefaultContextText = | |
55 | { | |
56 | 1, //IsDef | |
57 | 1, //IsSet | |
58 | "Courier", //Font | |
59 | 0.3F, //Space | |
60 | 1.F, //Expan | |
61 | { 1.F, 1.F, 1.F }, //Color | |
62 | (int)Aspect_TOST_NORMAL, //Style | |
63 | (int)Aspect_TODT_NORMAL, //DisplayType | |
64 | { 1.F, 1.F, 1.F }, //ColorSubTitle | |
65 | 0, //TextZoomable | |
66 | 0.F, //TextAngle | |
67 | (int)OSD_FA_Regular //TextFontAspect | |
68 | }; | |
69 | ||
70 | static Standard_Boolean TheLayerIsOpen = Standard_False; | |
71 | static OpenGl_LAYER_PROP TheLayerProp; | |
72 | ||
73 | /*----------------------------------------------------------------------*/ | |
74 | ||
75 | void InitLayerProp (const int AListId) | |
76 | { | |
77 | TheLayerProp.ListId = AListId; | |
7fd59977 | 78 | |
2166f0fa SK |
79 | if (AListId) |
80 | { | |
81 | TheLayerProp.Color = myDefaultColor; | |
82 | TheLayerProp.NbPoints = 0; | |
83 | TheLayerProp.LineType = -1; | |
84 | TheLayerProp.LineWidth = -1.F; | |
85 | TheLayerProp.FontCurrent = 0; | |
7fd59977 | 86 | |
2166f0fa | 87 | TheLayerProp.FontChanged = Standard_False; |
7fd59977 | 88 | |
2166f0fa | 89 | TheLayerProp.AspectText.SetContext(myDefaultContextText); |
7fd59977 | 90 | |
2166f0fa SK |
91 | TheLayerProp.TextParam.Height = -1; |
92 | TheLayerProp.TextParam.HAlign = Graphic3d_HTA_LEFT; | |
93 | TheLayerProp.TextParam.VAlign = Graphic3d_VTA_BOTTOM; | |
7fd59977 | 94 | } |
7fd59977 | 95 | } |
96 | ||
2166f0fa | 97 | /*----------------------------------------------------------------------*/ |
7fd59977 | 98 | |
2166f0fa SK |
99 | void OpenGl_GraphicDriver::Layer (Aspect_CLayer2d& ACLayer) |
100 | { | |
9d35f668 | 101 | ACLayer.ptrLayer = new CALL_DEF_PTRLAYER(); |
2166f0fa | 102 | ACLayer.ptrLayer->listIndex = glGenLists(1); |
7fd59977 | 103 | } |
104 | ||
2166f0fa SK |
105 | /*----------------------------------------------------------------------*/ |
106 | ||
107 | void OpenGl_GraphicDriver::RemoveLayer (const Aspect_CLayer2d& ACLayer) | |
108 | { | |
109 | if (!ACLayer.ptrLayer) return; | |
110 | if (!ACLayer.ptrLayer->listIndex) return; | |
111 | if (TheLayerProp.ListId == ACLayer.ptrLayer->listIndex) | |
112 | EndLayer(); | |
113 | glDeleteLists (ACLayer.ptrLayer->listIndex, 1); | |
114 | ACLayer.ptrLayer->listIndex = 0; | |
115 | //szvgl: memory leak here? | |
116 | //free ( ACLayer.ptrLayer ); | |
117 | //ACLayer.ptrLayer = NULL; | |
7fd59977 | 118 | } |
119 | ||
2166f0fa SK |
120 | /*----------------------------------------------------------------------*/ |
121 | ||
122 | void OpenGl_GraphicDriver::BeginLayer (const Aspect_CLayer2d& ACLayer) | |
123 | { | |
124 | call_def_ptrLayer ptrLayer = (call_def_ptrLayer) ACLayer.ptrLayer; | |
125 | if (!ptrLayer) return; | |
126 | ||
127 | InitLayerProp(ptrLayer->listIndex); | |
128 | if (!TheLayerProp.ListId) return; | |
129 | ||
130 | glEnable(GL_TEXTURE_2D); | |
131 | //GLboolean stat = glIsEnabled( GL_TEXTURE_2D ); | |
132 | ||
133 | glNewList (TheLayerProp.ListId, GL_COMPILE); | |
134 | TheLayerIsOpen = Standard_True; | |
7fd59977 | 135 | } |
136 | ||
2166f0fa SK |
137 | void OpenGl_GraphicDriver::BeginPolygon2d () |
138 | { | |
139 | if (!TheLayerProp.ListId) return; | |
140 | TheLayerProp.NbPoints = 0; | |
141 | glBegin (GL_POLYGON); | |
142 | } | |
7fd59977 | 143 | |
2166f0fa SK |
144 | void OpenGl_GraphicDriver::BeginPolyline2d () |
145 | { | |
146 | if (!TheLayerProp.ListId) return; | |
147 | TheLayerProp.NbPoints = 0; | |
148 | glBegin (GL_LINE_STRIP); | |
7fd59977 | 149 | } |
150 | ||
2166f0fa SK |
151 | void OpenGl_GraphicDriver::ClearLayer (const Aspect_CLayer2d& ACLayer) |
152 | { | |
153 | if (!ACLayer.ptrLayer) return; | |
154 | ||
155 | InitLayerProp(ACLayer.ptrLayer->listIndex); | |
156 | if (!TheLayerProp.ListId) return; | |
157 | ||
158 | glNewList (TheLayerProp.ListId, GL_COMPILE); | |
159 | glEndList (); | |
7fd59977 | 160 | } |
161 | ||
2166f0fa SK |
162 | void OpenGl_GraphicDriver::Draw (const Standard_ShortReal X, const Standard_ShortReal Y) |
163 | { | |
164 | if (!TheLayerProp.ListId) return; | |
165 | TheLayerProp.NbPoints++; | |
166 | glVertex3f (X, Y, 0.F); | |
7fd59977 | 167 | } |
168 | ||
2166f0fa SK |
169 | void OpenGl_GraphicDriver::Edge (const Standard_ShortReal X, const Standard_ShortReal Y) |
170 | { | |
171 | if (!TheLayerProp.ListId) return; | |
172 | TheLayerProp.NbPoints++; | |
173 | glVertex3f (X, Y, 0.F); | |
7fd59977 | 174 | } |
175 | ||
2166f0fa SK |
176 | void OpenGl_GraphicDriver::EndLayer () |
177 | { | |
178 | if (!TheLayerProp.ListId) return; | |
179 | if (TheLayerIsOpen) | |
180 | { | |
181 | glEndList(); | |
182 | TheLayerIsOpen = Standard_False; | |
7fd59977 | 183 | } |
2166f0fa | 184 | TheLayerProp.ListId = 0; |
7fd59977 | 185 | } |
186 | ||
2166f0fa SK |
187 | void OpenGl_GraphicDriver::EndPolygon2d () |
188 | { | |
189 | if (!TheLayerProp.ListId) return; | |
190 | glEnd (); | |
7fd59977 | 191 | } |
192 | ||
2166f0fa SK |
193 | void OpenGl_GraphicDriver::EndPolyline2d () |
194 | { | |
195 | if (!TheLayerProp.ListId) return; | |
196 | glEnd (); | |
7fd59977 | 197 | } |
198 | ||
2166f0fa SK |
199 | void OpenGl_GraphicDriver::Move (const Standard_ShortReal X, const Standard_ShortReal Y) |
200 | { | |
201 | if (!TheLayerProp.ListId) return; | |
202 | if (TheLayerProp.NbPoints) | |
203 | { | |
204 | glEnd (); | |
205 | TheLayerProp.NbPoints = 0; | |
206 | glBegin (GL_LINE_STRIP); | |
7fd59977 | 207 | } |
2166f0fa SK |
208 | TheLayerProp.NbPoints++; |
209 | glVertex3f (X, Y, 0.F); | |
7fd59977 | 210 | } |
211 | ||
2166f0fa SK |
212 | void OpenGl_GraphicDriver::Rectangle (const Standard_ShortReal X, const Standard_ShortReal Y, const Standard_ShortReal Width, const Standard_ShortReal Height) |
213 | { | |
214 | if (!TheLayerProp.ListId) return; | |
215 | glRectf (X, Y, X + Width, Y + Height); | |
7fd59977 | 216 | } |
217 | ||
2166f0fa SK |
218 | void OpenGl_GraphicDriver::SetColor (const Standard_ShortReal R, const Standard_ShortReal G, const Standard_ShortReal B) |
219 | { | |
220 | if (!TheLayerProp.ListId) return; | |
221 | TheLayerProp.Color.rgb[0] = R; | |
222 | TheLayerProp.Color.rgb[1] = G; | |
223 | TheLayerProp.Color.rgb[2] = B; | |
224 | glColor3fv (TheLayerProp.Color.rgb); | |
7fd59977 | 225 | } |
226 | ||
2166f0fa SK |
227 | void OpenGl_GraphicDriver::SetTransparency (const Standard_ShortReal ATransparency) |
228 | { | |
229 | if (!TheLayerProp.ListId) return; | |
230 | TheLayerProp.Color.rgb[3] = ATransparency; | |
231 | glEnable (GL_BLEND); | |
232 | glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | |
233 | glColor4fv (TheLayerProp.Color.rgb); | |
234 | } | |
235 | ||
236 | void OpenGl_GraphicDriver::UnsetTransparency () | |
237 | { | |
238 | if (!TheLayerProp.ListId) return; | |
239 | TheLayerProp.Color.rgb[3] = 1.F; | |
240 | glDisable (GL_BLEND); | |
7fd59977 | 241 | } |
242 | ||
2166f0fa SK |
243 | void OpenGl_GraphicDriver::SetLineAttributes (const Standard_Integer Type, const Standard_ShortReal Width) |
244 | { | |
245 | if (!TheLayerProp.ListId || openglDisplay.IsNull()) return; | |
246 | ||
247 | if (TheLayerProp.LineType != Type) | |
248 | { | |
249 | TheLayerProp.LineType = Type; | |
250 | openglDisplay->SetTypeOfLine((Aspect_TypeOfLine) Type); | |
251 | } | |
252 | if (TheLayerProp.LineWidth != Width) | |
253 | { | |
254 | TheLayerProp.LineWidth = Width; | |
255 | glLineWidth ((GLfloat) Width); | |
7fd59977 | 256 | } |
7fd59977 | 257 | } |
258 | ||
2166f0fa SK |
259 | void OpenGl_GraphicDriver::SetTextAttributes (const Standard_CString Font, const Standard_Integer AType, const Standard_ShortReal R, const Standard_ShortReal G, const Standard_ShortReal B) |
260 | { | |
261 | if (!TheLayerProp.ListId || openglDisplay.IsNull()) return; | |
262 | ||
25289ec1 | 263 | // get current subtitle text color |
264 | const TEL_COLOUR &aSubColor = TheLayerProp.AspectText.SubtitleColor (); | |
265 | ||
266 | // update if there are any modifications | |
267 | if (strcmp (TheLayerProp.AspectText.Font(), Font) != 0 || | |
268 | (int)TheLayerProp.AspectText.DisplayType() != AType || | |
269 | aSubColor.rgb[0] != (float)R || | |
270 | aSubColor.rgb[1] != (float)G || | |
271 | aSubColor.rgb[2] != (float)B) | |
2166f0fa SK |
272 | { |
273 | CALL_DEF_CONTEXTTEXT aContextText = myDefaultContextText; | |
274 | ||
c320e557 | 275 | aContextText.Font = Font; |
2166f0fa | 276 | aContextText.DisplayType = AType; |
25289ec1 | 277 | aContextText.ColorSubTitle.r = R; |
278 | aContextText.ColorSubTitle.g = G; | |
279 | aContextText.ColorSubTitle.b = B; | |
2166f0fa | 280 | TheLayerProp.AspectText.SetContext(aContextText); |
2166f0fa | 281 | TheLayerProp.FontChanged = Standard_True; |
7fd59977 | 282 | } |
2166f0fa | 283 | } |
7fd59977 | 284 | |
2166f0fa | 285 | void OpenGl_GraphicDriver::Text (const Standard_CString AText, const Standard_ShortReal X, const Standard_ShortReal Y, const Standard_ShortReal AHeight) |
13a22457 | 286 | { |
2166f0fa SK |
287 | if (!TheLayerProp.ListId || openglDisplay.IsNull()) return; |
288 | ||
289 | const Standard_ShortReal height = (AHeight < 0)? DefaultTextHeight() : AHeight; | |
290 | ||
291 | if ( TheLayerProp.TextParam.Height != height || TheLayerProp.FontChanged || TheLayerProp.FontCurrent == 0 ) | |
292 | { | |
293 | TheLayerProp.TextParam.Height = (int )height; | |
294 | TheLayerProp.FontCurrent = openglDisplay->FindFont(TheLayerProp.AspectText.Font(), TheLayerProp.AspectText.FontAspect(), (int )height); | |
25289ec1 | 295 | TheLayerProp.FontChanged = Standard_False; |
7fd59977 | 296 | } |
2166f0fa | 297 | |
25289ec1 | 298 | TCollection_ExtendedString aExtStr(AText); |
299 | const Techar *aTChStr = (const Techar *)aExtStr.ToExtString(); | |
2166f0fa SK |
300 | |
301 | //szv: conversion of Techar to wchar_t | |
25289ec1 | 302 | wchar_t *aWChStr = (wchar_t*)aTChStr; |
2166f0fa SK |
303 | if (sizeof(Techar) != sizeof(wchar_t)) |
304 | { | |
25289ec1 | 305 | Tint i = 0; while (aTChStr[i++]); |
306 | aWChStr = new wchar_t[i]; | |
307 | i = 0; while (aWChStr[i++] = (wchar_t)(*aTChStr++)); | |
308 | } | |
309 | ||
310 | const Aspect_TypeOfDisplayText aDispType = | |
311 | TheLayerProp.AspectText.DisplayType(); | |
312 | ||
313 | // display type of text | |
314 | if (aDispType != Aspect_TODT_NORMAL) | |
315 | { | |
316 | switch (aDispType) | |
317 | { | |
318 | // blend type | |
319 | case Aspect_TODT_BLEND: | |
320 | { | |
321 | glEnable(GL_COLOR_LOGIC_OP); | |
322 | glLogicOp(GL_XOR); | |
323 | } | |
324 | break; | |
325 | ||
326 | // subtitle type | |
327 | case Aspect_TODT_SUBTITLE: | |
328 | { | |
329 | GLint aViewport[4]; | |
330 | GLdouble aModelMatrix[16], aProjMatrix[16]; | |
331 | glGetIntegerv (GL_VIEWPORT, aViewport); | |
332 | glGetDoublev (GL_MODELVIEW_MATRIX, aModelMatrix); | |
333 | glGetDoublev (GL_PROJECTION_MATRIX, aProjMatrix); | |
334 | ||
335 | int aWidth, anAscent, aDescent; | |
336 | openglDisplay->StringSize(aWChStr, aWidth, anAscent, aDescent); | |
337 | ||
338 | GLdouble aWinX, aWinY, aWinZ; | |
339 | gluProject ((GLdouble)X, (GLdouble)Y, 0.0, aModelMatrix, | |
340 | aProjMatrix, aViewport, &aWinX, &aWinY, &aWinZ); | |
341 | ||
342 | // project coordinates | |
343 | GLdouble aCoordX[4]; | |
344 | GLdouble aCoordY[4]; | |
345 | GLdouble aCoordZ[4]; | |
346 | ||
347 | // left bottom corner | |
348 | gluUnProject (aWinX, aWinY + aDescent, aWinZ, aModelMatrix, | |
349 | aProjMatrix, aViewport, &aCoordX[0], &aCoordY[0], &aCoordZ[0]); | |
350 | ||
351 | // right bottom corner | |
352 | gluUnProject (aWinX + aWidth, aWinY + aDescent, aWinZ, aModelMatrix, | |
353 | aProjMatrix, aViewport, &aCoordX[1], &aCoordY[1], &aCoordZ[1]); | |
354 | ||
355 | // right top corner | |
356 | gluUnProject (aWinX + aWidth, aWinY + anAscent, aWinZ, aModelMatrix, | |
357 | aProjMatrix, aViewport, &aCoordX[2], &aCoordY[2], &aCoordZ[2]); | |
358 | ||
359 | // left top corner | |
360 | gluUnProject (aWinX, aWinY + anAscent, aWinZ, aModelMatrix, | |
361 | aProjMatrix, aViewport, &aCoordX[3], &aCoordY[3], &aCoordZ[3]); | |
362 | ||
363 | // draw colored plane and reset the color | |
364 | glColor3fv (TheLayerProp.AspectText.SubtitleColor ().rgb); | |
365 | glBegin(GL_POLYGON); | |
366 | glVertex3d(aCoordX[0], aCoordY[0], aCoordZ[0]); | |
367 | glVertex3d(aCoordX[1], aCoordY[1], aCoordZ[1]); | |
368 | glVertex3d(aCoordX[2], aCoordY[2], aCoordZ[2]); | |
369 | glVertex3d(aCoordX[3], aCoordY[3], aCoordZ[3]); | |
370 | glEnd(); | |
371 | glColor3fv (TheLayerProp.Color.rgb); | |
372 | } | |
373 | break; | |
374 | ||
375 | case Aspect_TODT_DEKALE: | |
376 | { | |
377 | GLint aViewport[4]; | |
378 | GLdouble aModelMatrix[16], aProjMatrix[16]; | |
379 | glGetIntegerv (GL_VIEWPORT, aViewport); | |
380 | glGetDoublev (GL_MODELVIEW_MATRIX, aModelMatrix); | |
381 | glGetDoublev (GL_PROJECTION_MATRIX, aProjMatrix); | |
382 | ||
383 | GLdouble aWinX, aWinY, aWinZ; | |
384 | gluProject ((GLdouble)X, (GLdouble)Y, 0.0, aModelMatrix, | |
385 | aProjMatrix, aViewport, &aWinX, &aWinY, &aWinZ); | |
386 | ||
387 | GLdouble aProjX, aProjY, aProjZ; | |
388 | ||
389 | gluUnProject (aWinX + 1, aWinY + 1, aWinZ, aModelMatrix, | |
390 | aProjMatrix, aViewport, &aProjX, &aProjY, &aProjZ); | |
391 | ||
392 | // draw a decal | |
393 | glColor3fv (TheLayerProp.AspectText.SubtitleColor ().rgb); | |
394 | openglDisplay->RenderText (aWChStr, 1, (float)aProjX, (float)aProjY, | |
395 | (float)aProjZ, &TheLayerProp.AspectText, &TheLayerProp.TextParam); | |
396 | ||
397 | gluUnProject (aWinX, aWinY, aWinZ, aModelMatrix, aProjMatrix, | |
398 | aViewport, &aProjX, &aProjY, &aProjZ); | |
399 | ||
400 | gluUnProject (aWinX - 1, aWinY - 1, aWinZ, aModelMatrix, aProjMatrix, | |
401 | aViewport, &aProjX, &aProjY, &aProjZ); | |
402 | ||
403 | openglDisplay->RenderText(aWChStr, 1, (float)aProjX, (float)aProjY, | |
404 | (float)aProjZ, &TheLayerProp.AspectText, &TheLayerProp.TextParam); | |
405 | ||
406 | gluUnProject (aWinX - 1, aWinY + 1, aWinZ, aModelMatrix, aProjMatrix, | |
407 | aViewport, &aProjX, &aProjY, &aProjZ); | |
408 | ||
409 | openglDisplay->RenderText(aWChStr, 1, (float)aProjX, (float)aProjY, | |
410 | (float)aProjZ, &TheLayerProp.AspectText, &TheLayerProp.TextParam); | |
411 | ||
412 | gluUnProject (aWinX + 1, aWinY - 1, aWinZ, aModelMatrix, aProjMatrix, | |
413 | aViewport, &aProjX, &aProjY, &aProjZ); | |
414 | ||
415 | openglDisplay->RenderText(aWChStr, 1, (float)aProjX, (float)aProjY, | |
416 | (float)aProjZ, &TheLayerProp.AspectText, &TheLayerProp.TextParam); | |
417 | glColor3fv (TheLayerProp.Color.rgb); | |
418 | } | |
419 | break; | |
420 | } | |
2166f0fa SK |
421 | } |
422 | ||
25289ec1 | 423 | openglDisplay->RenderText(aWChStr, 1, (float)X, (float)Y, 0.F, |
424 | &TheLayerProp.AspectText, &TheLayerProp.TextParam); | |
425 | ||
426 | if (aDispType == Aspect_TODT_BLEND) | |
427 | glDisable(GL_COLOR_LOGIC_OP); | |
2166f0fa SK |
428 | |
429 | //szv: delete temporary wide string | |
430 | if (sizeof(Techar) != sizeof(wchar_t)) | |
25289ec1 | 431 | delete[] aWChStr; |
7fd59977 | 432 | } |
433 | ||
13a22457 S |
434 | void OpenGl_GraphicDriver::TextSize (const Standard_CString AText, const Standard_ShortReal AHeight, Standard_ShortReal& AWidth, Standard_ShortReal& AnAscent, Standard_ShortReal& ADescent) const |
435 | { | |
2166f0fa SK |
436 | if (!TheLayerProp.ListId || openglDisplay.IsNull()) return; |
437 | ||
438 | const Standard_ShortReal height = (AHeight < 0)? DefaultTextHeight() : AHeight; | |
439 | ||
440 | if ( TheLayerProp.TextParam.Height != height || TheLayerProp.FontChanged || TheLayerProp.FontCurrent == 0 ) | |
441 | { | |
442 | TheLayerProp.TextParam.Height = (int )height; | |
443 | TheLayerProp.FontCurrent = openglDisplay->FindFont(TheLayerProp.AspectText.Font(), TheLayerProp.AspectText.FontAspect(), (int )height); | |
25289ec1 | 444 | TheLayerProp.FontChanged = Standard_False; |
2166f0fa SK |
445 | } |
446 | ||
13a22457 | 447 | TCollection_ExtendedString estr(AText); |
2166f0fa SK |
448 | const Techar *s = (const Techar *)estr.ToExtString(); |
449 | ||
450 | //szv: conversion of Techar to wchar_t | |
451 | wchar_t *s1 = (wchar_t*)s; | |
452 | if (sizeof(Techar) != sizeof(wchar_t)) | |
453 | { | |
454 | Tint i = 0; while (s[i++]); | |
455 | s1 = new wchar_t[i]; | |
456 | i = 0; while (s1[i++] = (wchar_t)(*s++)); | |
7fd59977 | 457 | } |
2166f0fa SK |
458 | |
459 | int aWidth = 0, anAscent = 0, aDescent = 0; | |
460 | openglDisplay->StringSize(s1, aWidth, anAscent, aDescent); | |
461 | ||
462 | //szv: delete temporary wide string | |
463 | if (sizeof(Techar) != sizeof(wchar_t)) | |
464 | delete[] s1; | |
465 | ||
466 | AWidth = (Standard_ShortReal) aWidth; | |
467 | AnAscent = (Standard_ShortReal) anAscent; | |
468 | ADescent = (Standard_ShortReal) aDescent; | |
7fd59977 | 469 | } |