| 1 | // Created on: 2011-09-20 |
| 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 | |
| 20 | |
| 21 | #include <OpenGl_GlCore11.hxx> |
| 22 | |
| 23 | #include <OpenGl_View.hxx> |
| 24 | |
| 25 | #include <OpenGl_Workspace.hxx> |
| 26 | #include <OpenGl_Display.hxx> |
| 27 | |
| 28 | #include <OpenGl_Display.hxx> |
| 29 | #include <OpenGl_Trihedron.hxx> |
| 30 | #include <OpenGl_GraduatedTrihedron.hxx> |
| 31 | |
| 32 | #include <OpenGl_transform_persistence.hxx> |
| 33 | |
| 34 | #include <GL/glu.h> // gluUnProject() |
| 35 | |
| 36 | IMPLEMENT_STANDARD_HANDLE(OpenGl_View,MMgt_TShared) |
| 37 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_View,MMgt_TShared) |
| 38 | |
| 39 | /*----------------------------------------------------------------------*/ |
| 40 | |
| 41 | static const OPENGL_BG_TEXTURE myDefaultBgTexture = { 0, 0, 0, Aspect_FM_CENTERED }; |
| 42 | static const OPENGL_BG_GRADIENT myDefaultBgGradient = { {{ 0.F, 0.F, 0.F, 1.F }}, {{ 0.F, 0.F, 0.F, 1.F }}, Aspect_GFM_NONE }; |
| 43 | static const Tmatrix3 myDefaultMatrix = { { 1.F, 0.F, 0.F, 0.F }, { 0.F, 1.F, 0.F, 0.F }, { 0.F, 0.F, 1.F, 0.F }, { 0.F, 0.F, 0.F, 1.F } }; |
| 44 | static const OPENGL_ZCLIP myDefaultZClip = { { Standard_True, 0.F }, { Standard_True, 1.F } }; |
| 45 | static const OPENGL_EXTRA_REP myDefaultExtra = |
| 46 | { |
| 47 | //vrp |
| 48 | { 0.F, 0.F, 0.F }, |
| 49 | //vpn |
| 50 | { 0.F, 0.F, 1.F }, |
| 51 | //vup |
| 52 | { 0.F, 1.F, 0.F }, |
| 53 | //map |
| 54 | { |
| 55 | //window |
| 56 | { 0.F, 0.F, 1.F, 1.F }, |
| 57 | //viewport |
| 58 | { 0.F, 0.F, 0.F, 1.F, 1.F, 1.F }, |
| 59 | //proj |
| 60 | TelParallel, |
| 61 | //prp |
| 62 | { 0.F, 0.F, 0.F }, |
| 63 | //vpd |
| 64 | 0.F, |
| 65 | //fpd |
| 66 | 0.F, |
| 67 | //bpd |
| 68 | -1.F |
| 69 | }, |
| 70 | //scaleFactors |
| 71 | { 1.F, 1.F, 1.F } |
| 72 | }; |
| 73 | |
| 74 | static const OPENGL_FOG myDefaultFog = { Standard_False, 0.F, 1.F, { { 0.F, 0.F, 0.F, 1.F } } }; |
| 75 | static const TEL_TRANSFORM_PERSISTENCE myDefaultTransPers = { 0, 0.F, 0.F, 0.F }; |
| 76 | |
| 77 | /*----------------------------------------------------------------------*/ |
| 78 | |
| 79 | OpenGl_View::OpenGl_View (const CALL_DEF_VIEWCONTEXT &AContext) |
| 80 | : myTextureEnv(0), |
| 81 | mySurfaceDetail(Visual3d_TOD_NONE), |
| 82 | myBackfacing(0), |
| 83 | myBgTexture(myDefaultBgTexture), |
| 84 | myBgGradient(myDefaultBgGradient), |
| 85 | //myOrientationMatrix(myDefaultMatrix), |
| 86 | //myMappingMatrix(myDefaultMatrix), |
| 87 | //shield_indicator = TOn, |
| 88 | //shield_colour = { { 0.F, 0.F, 0.F, 1.F } }, |
| 89 | //border_indicator = TOff, |
| 90 | //border_colour = { { 0.F, 0.F, 0.F, 1.F } }, |
| 91 | //active_status = TOn, |
| 92 | myZClip(myDefaultZClip), |
| 93 | myExtra(myDefaultExtra), |
| 94 | myFog(myDefaultFog), |
| 95 | myVisualization(AContext.Visualization), |
| 96 | myIntShadingMethod(TEL_SM_GOURAUD), |
| 97 | myAntiAliasing(Standard_False), |
| 98 | myAnimationListIndex(0), |
| 99 | myAnimationListReady(Standard_False), |
| 100 | myTransPers(&myDefaultTransPers), |
| 101 | myIsTransPers(Standard_False), |
| 102 | myResetFLIST(Standard_False) |
| 103 | { |
| 104 | // Initialize matrices |
| 105 | memcpy(myOrientationMatrix,myDefaultMatrix,sizeof(Tmatrix3)); |
| 106 | memcpy(myMappingMatrix,myDefaultMatrix,sizeof(Tmatrix3)); |
| 107 | |
| 108 | // Shading method |
| 109 | switch (AContext.Model) |
| 110 | { |
| 111 | case 1 : /* VISUAL3D_TOM_INTERP_COLOR */ |
| 112 | case 3 : /* VISUAL3D_TOM_VERTEX */ |
| 113 | myIntShadingMethod = TEL_SM_GOURAUD; |
| 114 | break; |
| 115 | default : |
| 116 | myIntShadingMethod = TEL_SM_FLAT; |
| 117 | break; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /*----------------------------------------------------------------------*/ |
| 122 | |
| 123 | OpenGl_View::~OpenGl_View () |
| 124 | { |
| 125 | if (myAnimationListIndex) |
| 126 | glDeleteLists((GLuint)myAnimationListIndex,1); |
| 127 | |
| 128 | if ( myBgTexture.TexId != 0 ) |
| 129 | glDeleteTextures( 1, (GLuint*)&(myBgTexture.TexId) ); |
| 130 | } |
| 131 | |
| 132 | /*----------------------------------------------------------------------*/ |
| 133 | |
| 134 | void OpenGl_View::SetBackfacing (const Standard_Integer AMode) |
| 135 | { |
| 136 | myBackfacing = AMode; |
| 137 | myResetFLIST = Standard_True; |
| 138 | } |
| 139 | |
| 140 | /*----------------------------------------------------------------------*/ |
| 141 | |
| 142 | //call_togl_setlight |
| 143 | void OpenGl_View::SetLights (const CALL_DEF_VIEWCONTEXT &AContext) |
| 144 | { |
| 145 | myLights.Clear(); |
| 146 | |
| 147 | const int nb_lights = AContext.NbActiveLight; |
| 148 | |
| 149 | int i = 0; |
| 150 | const CALL_DEF_LIGHT *alight = &(AContext.ActiveLight[0]); |
| 151 | for ( ; i < nb_lights; i++, alight++ ) |
| 152 | { |
| 153 | OpenGl_Light rep; |
| 154 | |
| 155 | switch( alight->LightType ) |
| 156 | { |
| 157 | case 0 : /* TOLS_AMBIENT */ |
| 158 | rep.type = TLightAmbient; |
| 159 | rep.col.rgb[0] = alight->Color.r; |
| 160 | rep.col.rgb[1] = alight->Color.g; |
| 161 | rep.col.rgb[2] = alight->Color.b; |
| 162 | break; |
| 163 | |
| 164 | case 1 : /* TOLS_DIRECTIONAL */ |
| 165 | rep.type = TLightDirectional; |
| 166 | rep.col.rgb[0] = alight->Color.r; |
| 167 | rep.col.rgb[1] = alight->Color.g; |
| 168 | rep.col.rgb[2] = alight->Color.b; |
| 169 | rep.dir[0] = alight->Direction.x; |
| 170 | rep.dir[1] = alight->Direction.y; |
| 171 | rep.dir[2] = alight->Direction.z; |
| 172 | break; |
| 173 | |
| 174 | case 2 : /* TOLS_POSITIONAL */ |
| 175 | rep.type = TLightPositional; |
| 176 | rep.col.rgb[0] = alight->Color.r; |
| 177 | rep.col.rgb[1] = alight->Color.g; |
| 178 | rep.col.rgb[2] = alight->Color.b; |
| 179 | rep.pos[0] = alight->Position.x; |
| 180 | rep.pos[1] = alight->Position.y; |
| 181 | rep.pos[2] = alight->Position.z; |
| 182 | rep.atten[0] = alight->Attenuation[0]; |
| 183 | rep.atten[1] = alight->Attenuation[1]; |
| 184 | break; |
| 185 | |
| 186 | case 3 : /* TOLS_SPOT */ |
| 187 | rep.type = TLightSpot; |
| 188 | rep.col.rgb[0] = alight->Color.r; |
| 189 | rep.col.rgb[1] = alight->Color.g; |
| 190 | rep.col.rgb[2] = alight->Color.b; |
| 191 | rep.pos[0] = alight->Position.x; |
| 192 | rep.pos[1] = alight->Position.y; |
| 193 | rep.pos[2] = alight->Position.z; |
| 194 | rep.dir[0] = alight->Direction.x; |
| 195 | rep.dir[1] = alight->Direction.y; |
| 196 | rep.dir[2] = alight->Direction.z; |
| 197 | rep.shine = alight->Concentration; |
| 198 | rep.atten[0] = alight->Attenuation[0]; |
| 199 | rep.atten[1] = alight->Attenuation[1]; |
| 200 | rep.angle = alight->Angle; |
| 201 | break; |
| 202 | } |
| 203 | |
| 204 | rep.HeadLight = alight->Headlight; |
| 205 | |
| 206 | myLights.Append(rep); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | /*----------------------------------------------------------------------*/ |
| 211 | |
| 212 | //call_togl_setplane |
| 213 | void OpenGl_View::SetClippingPlanes (const CALL_DEF_VIEWCONTEXT &AContext) |
| 214 | { |
| 215 | // clear clipping planes information |
| 216 | myClippingPlanes.Clear(); |
| 217 | // update information |
| 218 | int i = 0; |
| 219 | for (; i < AContext.NbActivePlane; i++) |
| 220 | { |
| 221 | const CALL_DEF_PLANE &aCPlane = AContext.ActivePlane[i]; |
| 222 | if ( aCPlane.Active && aCPlane.PlaneId > 0 ) |
| 223 | { |
| 224 | OPENGL_CLIP_REP aPlane; |
| 225 | aPlane.equation[0] = aCPlane.CoefA; |
| 226 | aPlane.equation[1] = aCPlane.CoefB; |
| 227 | aPlane.equation[2] = aCPlane.CoefC; |
| 228 | aPlane.equation[3] = aCPlane.CoefD; |
| 229 | myClippingPlanes.Append( aPlane ); |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | /*----------------------------------------------------------------------*/ |
| 235 | |
| 236 | //call_togl_setvisualisation |
| 237 | void OpenGl_View::SetVisualisation (const CALL_DEF_VIEWCONTEXT &AContext) |
| 238 | { |
| 239 | myVisualization = AContext.Visualization; |
| 240 | // Shading method |
| 241 | switch (AContext.Model) |
| 242 | { |
| 243 | case 1 : /* VISUAL3D_TOM_INTERP_COLOR */ |
| 244 | case 3 : /* VISUAL3D_TOM_VERTEX */ |
| 245 | myIntShadingMethod = TEL_SM_GOURAUD; |
| 246 | break; |
| 247 | default : |
| 248 | myIntShadingMethod = TEL_SM_FLAT; |
| 249 | break; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | /*----------------------------------------------------------------------*/ |
| 254 | |
| 255 | //call_togl_cliplimit |
| 256 | void OpenGl_View::SetClipLimit (const CALL_DEF_VIEW &ACView) |
| 257 | { |
| 258 | myZClip.Back.Limit = |
| 259 | ( ACView.Context.ZClipBackPlane - ACView.Mapping.BackPlaneDistance ) / |
| 260 | ( ACView.Mapping.FrontPlaneDistance - ACView.Mapping.BackPlaneDistance ); |
| 261 | myZClip.Front.Limit = |
| 262 | ( ACView.Context.ZClipFrontPlane - ACView.Mapping.BackPlaneDistance ) / |
| 263 | ( ACView.Mapping.FrontPlaneDistance - ACView.Mapping.BackPlaneDistance ); |
| 264 | if ( myZClip.Back.Limit < 0.F ) |
| 265 | myZClip.Back.Limit = 0.F; |
| 266 | if ( myZClip.Front.Limit > 1.F ) |
| 267 | myZClip.Front.Limit = 1.F; |
| 268 | if ( myZClip.Back.Limit > myZClip.Front.Limit ) |
| 269 | { |
| 270 | myZClip.Back.Limit = 0.F; |
| 271 | myZClip.Front.Limit = 1.F; |
| 272 | } |
| 273 | |
| 274 | myZClip.Back.IsOn = (ACView.Context.BackZClipping != 0); |
| 275 | myZClip.Front.IsOn = (ACView.Context.FrontZClipping != 0); |
| 276 | } |
| 277 | |
| 278 | /*----------------------------------------------------------------------*/ |
| 279 | |
| 280 | //call_togl_viewmapping |
| 281 | void OpenGl_View::SetMapping (const CALL_DEF_VIEW &ACView) |
| 282 | { |
| 283 | const float ratio = ACView.DefWindow.dy / ACView.DefWindow.dx; |
| 284 | const float r_ratio = ACView.DefWindow.dx / ACView.DefWindow.dy; |
| 285 | |
| 286 | TEL_VIEW_MAPPING Map; |
| 287 | |
| 288 | Map.window.xmin = ACView.Mapping.WindowLimit.um; |
| 289 | Map.window.ymin = ACView.Mapping.WindowLimit.vm; |
| 290 | Map.window.xmax = ACView.Mapping.WindowLimit.uM; |
| 291 | Map.window.ymax = ACView.Mapping.WindowLimit.vM; |
| 292 | |
| 293 | Map.viewport.xmin = 0.F; |
| 294 | Map.viewport.xmax = ( 1.F < r_ratio ? 1.F : r_ratio ); |
| 295 | Map.viewport.ymin = 0.F; |
| 296 | Map.viewport.ymax = ( 1.F < ratio ? 1.F : ratio ); |
| 297 | Map.viewport.zmin = 0.F; |
| 298 | Map.viewport.zmax = 1.F; |
| 299 | |
| 300 | /* projection type */ |
| 301 | switch( ACView.Mapping.Projection ) |
| 302 | { |
| 303 | case 0 : |
| 304 | Map.proj = TelPerspective; |
| 305 | break; |
| 306 | case 1 : |
| 307 | Map.proj = TelParallel; |
| 308 | break; |
| 309 | } |
| 310 | |
| 311 | /* projection reference point */ |
| 312 | Map.prp[0] = ACView.Mapping.ProjectionReferencePoint.x; |
| 313 | Map.prp[1] = ACView.Mapping.ProjectionReferencePoint.y; |
| 314 | Map.prp[2] = ACView.Mapping.ProjectionReferencePoint.z; |
| 315 | if (!openglDisplay.IsNull() && !openglDisplay->Walkthrough()) |
| 316 | Map.prp[2] += ACView.Mapping.FrontPlaneDistance; |
| 317 | |
| 318 | /* view plane distance */ |
| 319 | Map.vpd = ACView.Mapping.ViewPlaneDistance; |
| 320 | |
| 321 | /* back plane distance */ |
| 322 | Map.bpd = ACView.Mapping.BackPlaneDistance; |
| 323 | |
| 324 | /* front plane distance */ |
| 325 | Map.fpd = ACView.Mapping.FrontPlaneDistance; |
| 326 | |
| 327 | Tint err_ind = 0; |
| 328 | |
| 329 | /* use user-defined matrix */ |
| 330 | if ( ACView.Mapping.IsCustomMatrix ) |
| 331 | { |
| 332 | int i, j; |
| 333 | for( i = 0; i < 4; i++ ) |
| 334 | for( j = 0; j < 4; j++ ) |
| 335 | myMappingMatrix[i][j] = ACView.Mapping.ProjectionMatrix[i][j]; |
| 336 | } |
| 337 | else |
| 338 | TelEvalViewMappingMatrix( &Map, &err_ind, myMappingMatrix ); |
| 339 | |
| 340 | if ( !err_ind ) |
| 341 | myExtra.map = Map; |
| 342 | } |
| 343 | |
| 344 | /*----------------------------------------------------------------------*/ |
| 345 | |
| 346 | //call_togl_vieworientation |
| 347 | void OpenGl_View::SetOrientation (const CALL_DEF_VIEW &ACView) |
| 348 | { |
| 349 | Tfloat Vrp[3]; |
| 350 | Tfloat Vpn[3]; |
| 351 | Tfloat Vup[3]; |
| 352 | Tfloat ScaleFactors[3]; |
| 353 | |
| 354 | Vrp[0] = ACView.Orientation.ViewReferencePoint.x; |
| 355 | Vrp[1] = ACView.Orientation.ViewReferencePoint.y; |
| 356 | Vrp[2] = ACView.Orientation.ViewReferencePoint.z; |
| 357 | |
| 358 | Vpn[0] = ACView.Orientation.ViewReferencePlane.x; |
| 359 | Vpn[1] = ACView.Orientation.ViewReferencePlane.y; |
| 360 | Vpn[2] = ACView.Orientation.ViewReferencePlane.z; |
| 361 | |
| 362 | Vup[0] = ACView.Orientation.ViewReferenceUp.x; |
| 363 | Vup[1] = ACView.Orientation.ViewReferenceUp.y; |
| 364 | Vup[2] = ACView.Orientation.ViewReferenceUp.z; |
| 365 | |
| 366 | ScaleFactors[0] = ACView.Orientation.ViewScaleX; |
| 367 | ScaleFactors[1] = ACView.Orientation.ViewScaleY; |
| 368 | ScaleFactors[2] = ACView.Orientation.ViewScaleZ; |
| 369 | |
| 370 | Tint err_ind = 0; |
| 371 | |
| 372 | // use user-defined matrix |
| 373 | if ( ACView.Orientation.IsCustomMatrix ) |
| 374 | { |
| 375 | int i, j; |
| 376 | for( i = 0; i < 4; i++ ) |
| 377 | for( j = 0; j < 4; j++ ) |
| 378 | myOrientationMatrix[i][j] = ACView.Orientation.ModelViewMatrix[i][j]; |
| 379 | } |
| 380 | else |
| 381 | TelEvalViewOrientationMatrix( Vrp, Vpn, Vup, ScaleFactors, &err_ind, myOrientationMatrix ); |
| 382 | |
| 383 | if ( !err_ind ) |
| 384 | { |
| 385 | myExtra.vrp[0] = Vrp[0]; |
| 386 | myExtra.vrp[1] = Vrp[1]; |
| 387 | myExtra.vrp[2] = Vrp[2]; |
| 388 | |
| 389 | myExtra.vpn[0] = Vpn[0]; |
| 390 | myExtra.vpn[1] = Vpn[1]; |
| 391 | myExtra.vpn[2] = Vpn[2]; |
| 392 | |
| 393 | myExtra.vup[0] = Vup[0]; |
| 394 | myExtra.vup[1] = Vup[1]; |
| 395 | myExtra.vup[2] = Vup[2]; |
| 396 | |
| 397 | myExtra.scaleFactors[0] = ScaleFactors[0], |
| 398 | myExtra.scaleFactors[1] = ScaleFactors[1], |
| 399 | myExtra.scaleFactors[2] = ScaleFactors[2]; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | /*----------------------------------------------------------------------*/ |
| 404 | |
| 405 | void OpenGl_View::SetFog (const CALL_DEF_VIEW &ACView, const Standard_Boolean AFlag) |
| 406 | { |
| 407 | if( !AFlag ) |
| 408 | { |
| 409 | myFog.IsOn = Standard_False; |
| 410 | } |
| 411 | else |
| 412 | { |
| 413 | myFog.IsOn = Standard_True; |
| 414 | |
| 415 | myFog.Front = |
| 416 | (ACView.Context.DepthFrontPlane - ACView.Mapping.BackPlaneDistance) / |
| 417 | (ACView.Mapping.FrontPlaneDistance - ACView.Mapping.BackPlaneDistance); |
| 418 | |
| 419 | myFog.Back = |
| 420 | (ACView.Context.DepthBackPlane - ACView.Mapping.BackPlaneDistance) / |
| 421 | (ACView.Mapping.FrontPlaneDistance - ACView.Mapping.BackPlaneDistance); |
| 422 | |
| 423 | if (myFog.Front < 0.F) |
| 424 | myFog.Front = 0.F; |
| 425 | else if (myFog.Front > 1.F) |
| 426 | myFog.Front = 1.F; |
| 427 | |
| 428 | if (myFog.Back < 0.F) |
| 429 | myFog.Back = 0.F; |
| 430 | else if (myFog.Back > 1.F) |
| 431 | myFog.Back = 1.F; |
| 432 | |
| 433 | if (myFog.Back > myFog.Front) |
| 434 | { |
| 435 | myFog.Front = 1.F; |
| 436 | myFog.Back = 0.F; |
| 437 | } |
| 438 | |
| 439 | myFog.Color.rgb[0] = ACView.DefWindow.Background.r; |
| 440 | myFog.Color.rgb[1] = ACView.DefWindow.Background.g; |
| 441 | myFog.Color.rgb[2] = ACView.DefWindow.Background.b; |
| 442 | myFog.Color.rgb[3] = 1.F; |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | /*----------------------------------------------------------------------*/ |
| 447 | |
| 448 | void OpenGl_View::TriedronDisplay (const Aspect_TypeOfTriedronPosition APosition, const Quantity_NameOfColor AColor, |
| 449 | const Standard_Real AScale, const Standard_Boolean AsWireframe) |
| 450 | { |
| 451 | myTrihedron = new OpenGl_Trihedron (APosition, AColor, AScale, AsWireframe); |
| 452 | } |
| 453 | |
| 454 | /*----------------------------------------------------------------------*/ |
| 455 | |
| 456 | void OpenGl_View::TriedronErase () |
| 457 | { |
| 458 | myTrihedron.Nullify(); |
| 459 | } |
| 460 | |
| 461 | /*----------------------------------------------------------------------*/ |
| 462 | |
| 463 | void OpenGl_View::GraduatedTrihedronDisplay (const Graphic3d_CGraduatedTrihedron &data) |
| 464 | { |
| 465 | myGraduatedTrihedron = new OpenGl_GraduatedTrihedron(data); |
| 466 | } |
| 467 | |
| 468 | /*----------------------------------------------------------------------*/ |
| 469 | |
| 470 | void OpenGl_View::GraduatedTrihedronErase () |
| 471 | { |
| 472 | myGraduatedTrihedron.Nullify(); |
| 473 | } |
| 474 | |
| 475 | /*----------------------------------------------------------------------*/ |
| 476 | |
| 477 | //transform_persistence_end |
| 478 | void OpenGl_View::EndTransformPersistence () |
| 479 | { |
| 480 | if ( myIsTransPers ) |
| 481 | { |
| 482 | /* restore matrix */ |
| 483 | glMatrixMode (GL_PROJECTION); |
| 484 | glPopMatrix (); |
| 485 | glMatrixMode (GL_MODELVIEW); |
| 486 | glPopMatrix (); |
| 487 | myIsTransPers = Standard_False; |
| 488 | } |
| 489 | } |
| 490 | |
| 491 | /*----------------------------------------------------------------------*/ |
| 492 | |
| 493 | //transform_persistence_begin |
| 494 | const TEL_TRANSFORM_PERSISTENCE * OpenGl_View::BeginTransformPersistence (const TEL_TRANSFORM_PERSISTENCE *ATransPers) |
| 495 | { |
| 496 | const TEL_TRANSFORM_PERSISTENCE *TransPers_old = myTransPers; |
| 497 | |
| 498 | myTransPers = ATransPers; |
| 499 | |
| 500 | if ( ATransPers->mode == 0 ) |
| 501 | { |
| 502 | EndTransformPersistence(); |
| 503 | return TransPers_old; |
| 504 | } |
| 505 | |
| 506 | GLint viewport[4]; |
| 507 | glGetIntegerv (GL_VIEWPORT, viewport); |
| 508 | GLdouble modelMatrix[4][4]; |
| 509 | glGetDoublev( GL_MODELVIEW_MATRIX, (GLdouble *) modelMatrix ); |
| 510 | GLdouble projMatrix[4][4]; |
| 511 | glGetDoublev( GL_PROJECTION_MATRIX, (GLdouble *) projMatrix ); |
| 512 | |
| 513 | double W = viewport[2]; |
| 514 | double H = viewport[3]; |
| 515 | |
| 516 | if ( myIsTransPers ) |
| 517 | { |
| 518 | /* restore matrix */ |
| 519 | glMatrixMode (GL_PROJECTION); |
| 520 | glPopMatrix (); |
| 521 | glMatrixMode (GL_MODELVIEW); |
| 522 | glPopMatrix (); |
| 523 | } |
| 524 | else |
| 525 | myIsTransPers = Standard_True; |
| 526 | |
| 527 | glMatrixMode( GL_MODELVIEW ); |
| 528 | glPushMatrix(); |
| 529 | glLoadIdentity(); |
| 530 | |
| 531 | glMatrixMode( GL_PROJECTION ); |
| 532 | glPushMatrix(); |
| 533 | glLoadIdentity(); |
| 534 | |
| 535 | /*pre loading matrix*/ |
| 536 | if( ATransPers->mode & TPF_PAN ) |
| 537 | /* Annulate translate matrix */ |
| 538 | { |
| 539 | modelMatrix[3][0] = 0.; |
| 540 | modelMatrix[3][1] = 0.; |
| 541 | modelMatrix[3][2] = 0.; |
| 542 | projMatrix[3][0] = 0.; |
| 543 | projMatrix[3][1] = 0.; |
| 544 | projMatrix[3][2] = 0.; |
| 545 | } |
| 546 | |
| 547 | if( ATransPers->mode & TPF_ZOOM ) |
| 548 | /* Annulate zoom matrix */ |
| 549 | { |
| 550 | const double scaleX = myExtra.scaleFactors[0]; |
| 551 | const double scaleY = myExtra.scaleFactors[1]; |
| 552 | const double scaleZ = myExtra.scaleFactors[2]; |
| 553 | |
| 554 | for (int i = 0; i < 3; ++i) |
| 555 | { |
| 556 | modelMatrix[0][i] /= scaleX; |
| 557 | modelMatrix[1][i] /= scaleY; |
| 558 | modelMatrix[2][i] /= scaleZ; |
| 559 | } |
| 560 | |
| 561 | const double det2 = 0.002 / ( W > H ? projMatrix[1][1] : projMatrix[0][0]); |
| 562 | projMatrix[0][0] *= det2; |
| 563 | projMatrix[1][1] *= det2; |
| 564 | } |
| 565 | |
| 566 | if( ATransPers->mode & TPF_ROTATE ) |
| 567 | /* Annulate rotate matrix */ |
| 568 | { |
| 569 | modelMatrix[0][0] = 1.; |
| 570 | modelMatrix[1][1] = 1.; |
| 571 | modelMatrix[2][2] = 1.; |
| 572 | |
| 573 | modelMatrix[1][0] = 0.; |
| 574 | modelMatrix[2][0] = 0.; |
| 575 | modelMatrix[0][1] = 0.; |
| 576 | modelMatrix[2][1] = 0.; |
| 577 | modelMatrix[0][2] = 0.; |
| 578 | modelMatrix[1][2] = 0.; |
| 579 | } |
| 580 | else if( ATransPers->mode & TPF_RELATIVE_ROTATE ) |
| 581 | /* Initialize relative rotate matrix*/ |
| 582 | { |
| 583 | modelMatrix[3][0] = 0.; |
| 584 | modelMatrix[3][1] = 0.; |
| 585 | modelMatrix[3][2] = 0.; |
| 586 | |
| 587 | glMatrixMode( GL_MODELVIEW ); |
| 588 | glLoadIdentity(); |
| 589 | glTranslated( ATransPers->pointX, ATransPers->pointY, ATransPers->pointZ ); |
| 590 | } |
| 591 | |
| 592 | if( ATransPers->mode == TPF_TRIEDRON ) |
| 593 | { |
| 594 | /* Annulate translation matrix */ |
| 595 | modelMatrix[3][0] = 0.; |
| 596 | modelMatrix[3][1] = 0.; |
| 597 | modelMatrix[3][2] = 0.; |
| 598 | |
| 599 | projMatrix[3][0] = 0.; |
| 600 | projMatrix[3][1] = 0.; |
| 601 | projMatrix[3][2] = 0.; |
| 602 | |
| 603 | const double det2 = 0.002 / ( W > H ? projMatrix[1][1] : projMatrix[0][0]); |
| 604 | projMatrix[0][0] *= det2; |
| 605 | projMatrix[1][1] *= det2; |
| 606 | } |
| 607 | |
| 608 | /* load matrix */ |
| 609 | glMatrixMode (GL_MODELVIEW); |
| 610 | glMultMatrixd ((GLdouble *) modelMatrix); |
| 611 | |
| 612 | glMatrixMode (GL_PROJECTION); |
| 613 | glMultMatrixd ((GLdouble *) projMatrix); |
| 614 | |
| 615 | /*post loading matrix*/ |
| 616 | if( ATransPers->mode == TPF_TRIEDRON ) |
| 617 | { |
| 618 | glMatrixMode( GL_PROJECTION ); |
| 619 | |
| 620 | double winx, winy, winz; |
| 621 | const GLdouble idenMatrix[4][4] = { {1.,0.,0.,0.}, {0.,1.,0.,0.}, {0.,0.,1.,0.}, {0.,0.,0.,1.} }; |
| 622 | |
| 623 | gluUnProject( W/2., H/2., 0., (GLdouble*)idenMatrix, (GLdouble*)projMatrix, (GLint*)viewport, &winx, &winy, &winz); |
| 624 | double W1, H1; |
| 625 | W1 = winx; |
| 626 | H1 = winy; |
| 627 | gluUnProject( -W/2., -H/2., 0., (GLdouble*)idenMatrix, (GLdouble*)projMatrix, (GLint*)viewport, &winx, &winy, &winz); |
| 628 | double W2, H2; |
| 629 | W2 = winx; |
| 630 | H2 = winy; |
| 631 | |
| 632 | if( ATransPers->pointX == 0. && ATransPers->pointY == 0. ) |
| 633 | { |
| 634 | /*center*/ |
| 635 | } |
| 636 | else if( ATransPers->pointX > 0. && ATransPers->pointY > 0. ) |
| 637 | { |
| 638 | /*right upper*/ |
| 639 | glTranslated( 0.5*(W1 - W2 - ATransPers->pointZ), 0.5*(H1 - H2 - ATransPers->pointZ), 0. ); |
| 640 | } |
| 641 | else if( ATransPers->pointX > 0. && ATransPers->pointY < 0. ) |
| 642 | { |
| 643 | /*right lower*/ |
| 644 | glTranslated( 0.5*(W1 - W2 - ATransPers->pointZ), 0.5*(H2 - H1 + ATransPers->pointZ), 0. ); |
| 645 | } |
| 646 | else if( ATransPers->pointX < 0. && ATransPers->pointY > 0. ) |
| 647 | { |
| 648 | /*left upper*/ |
| 649 | glTranslated( 0.5*(W2 - W1 + ATransPers->pointZ), 0.5*(H1 - H2 - ATransPers->pointZ), 0. ); |
| 650 | } |
| 651 | else if( ATransPers->pointX < 0 && ATransPers->pointY < 0 ) |
| 652 | { |
| 653 | /*left lower*/ |
| 654 | glTranslated( -(W1 - W2)/2. + ATransPers->pointZ/2., -(H1-H2)/2. + ATransPers->pointZ/2., 0. ); |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | return TransPers_old; |
| 659 | } |
| 660 | |
| 661 | /*----------------------------------------------------------------------*/ |