Source/Contrib/ComplexSceneManager/OSGCSMTrackball.cpp

   1 /*---------------------------------------------------------------------------*\
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   5  *               Copyright (C) 2000-2006 by the OpenSG Forum                 *
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  15  * This library is free software; you can redistribute it and/or modify it   *
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  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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  37 \*---------------------------------------------------------------------------*/
  38
  39 //---------------------------------------------------------------------------
  40 //  Includes
  41 //---------------------------------------------------------------------------
  42
  43 #include <cstdlib>
  44 #include <cstdio>
  45
  46 #include "OSGConfig.h"
  47
  48 #include "OSGCSMTrackball.h"
  49 #include "OSGWindow.h"
  50 #include "OSGViewport.h"
  51
  52 OSG_BEGIN_NAMESPACE
  53
  54 // Documentation for this class is emitted in the
  55 // OSGCSMTrackballBase.cpp file.
  56 // To modify it, please change the .fcd file (OSGCSMTrackball.fcd) and
  57 // regenerate the base file.
  58
  59 /***************************************************************************\
  60  *                           Class variables                               *
  61 \***************************************************************************/
  62
  63 /***************************************************************************\
  64  *                           Class methods                                 *
  65 \***************************************************************************/
  66
  67 void CSMTrackball::initMethod(InitPhase ePhase)
  68 {
  69     Inherited::initMethod(ePhase);
  70
  71     if(ePhase == TypeObject::SystemPost)
  72     {
  73     }
  74 }
  75
  76
  77 /***************************************************************************\
  78  *                           Instance methods                              *
  79 \***************************************************************************/
  80
  81 /*-------------------------------------------------------------------------*\
  82  -  private                                                                 -
  83 \*-------------------------------------------------------------------------*/
  84
  85 /*----------------------- constructors & destructors ----------------------*/
  86
  87 CSMTrackball::CSMTrackball(void) :
  88      Inherited    (  ),
  89     _oTrackball   (  ),
  90     _iLastX       (-1),
  91     _iLastY       (-1),
  92     _iMouseButtons( 0)
  93
  94 {
  95     _oTrackball.setStartPosition(0, 0, 10, true);
  96     _oTrackball.setTranslationScale(1.f);
  97
  98     _oTrackball.setMode            (Trackball::OSGObject);
  99     _oTrackball.setSum             (true                );
 100     _oTrackball.setTranslationMode (Trackball::OSGFree  );
 101 }
 102
 103 CSMTrackball::CSMTrackball(const CSMTrackball &source) :
 104      Inherited    (source),
 105     _oTrackball   (      ),
 106     _iLastX       (-1    ),
 107     _iLastY       (-1    ),
 108     _iMouseButtons( 0    )
 109
 110 {
 111     _oTrackball.setStartPosition(0, 0, 10, true);
 112     _oTrackball.setTranslationScale(1.f);
 113
 114     _oTrackball.setMode            (Trackball::OSGObject);
 115     _oTrackball.setSum             (true                );
 116     _oTrackball.setTranslationMode (Trackball::OSGFree  );
 117 }
 118
 119 CSMTrackball::~CSMTrackball(void)
 120 {
 121 }
 122
 123 /*----------------------------- class specific ----------------------------*/
 124
 125 void CSMTrackball::changed(ConstFieldMaskArg whichField,
 126                            UInt32            origin,
 127                            BitVector         details)
 128 {
 129     if(0x0000 != (whichField & MouseDataFieldMask))
 130     {
 131         const MouseData &mData = _sfMouseData.getValue();
 132
 133         if((0x0000 != (mData.getModifier() & _sfModifierMask.getValue())) ||
 134            (_sfProcessing.getValue() == 0x01))
 135         {
 136             if(mData.getButton() != -1)
 137             {
 138                 if(mData.getState() == Int32(MouseData::ButtonDown))
 139                 {
 140                     switch(mData.getButton())
 141                     {
 142                         case MouseData::LeftButton :
 143                             break;
 144
 145                         case MouseData::MiddleButton :
 146                             _oTrackball.setAutoPosition(true);
 147                             break;
 148
 149                         case MouseData::RightButton :
 150                             _oTrackball.setAutoPositionNeg(true);
 151                             break;
 152
 153                         case MouseData::WheelDownButton:
 154                         {
 155                             _oTrackball.setAutoPositionNeg(true);
 156
 157                             Real32 a,b,c,d;
 158
 159                             a = 0.f;
 160                             b = 0.f;
 161
 162                             c = 0.f;
 163                             d = 0.1f;
 164
 165                             _oTrackball.updatePositionNeg(a, b, c, d);
 166
 167                             editSFMatrixResult()->setValue(
 168                                 _oTrackball.getFullTrackballMatrix());
 169
 170                             editSFRotationMatrixResult()->setValue(
 171                                 _oTrackball.getRotationMatrix());
 172                         }
 173                         break;
 174
 175                         case MouseData::WheelUpButton:
 176                         {
 177                             _oTrackball.setAutoPositionNeg(true);
 178
 179                             Real32 a,b,c,d;
 180
 181                             a = 0.f;
 182                             b = 0.f;
 183
 184                             c = 0.f;
 185                             d = -0.1f;
 186
 187                             _oTrackball.updatePositionNeg(a, b, c, d);
 188
 189                             editSFMatrixResult()->setValue(
 190                                 _oTrackball.getFullTrackballMatrix());
 191
 192                             editSFRotationMatrixResult()->setValue(
 193                                 _oTrackball.getRotationMatrix());
 194                         }
 195                         break;
 196                     }
 197
 198                     _iMouseButtons |= 1 << mData.getButton();
 199
 200                     editSFProcessing()->setValue(true);
 201                 }
 202                 else
 203                 {
 204                     switch(mData.getButton())
 205                     {
 206                         case MouseData::LeftButton :
 207                             break;
 208
 209                         case MouseData::MiddleButton :
 210                             _oTrackball.setAutoPosition(false);
 211                             break;
 212
 213                         case MouseData::RightButton :
 214                         case MouseData::WheelDownButton:
 215                         case MouseData::WheelUpButton:
 216                             _oTrackball.setAutoPositionNeg(false);
 217                             break;
 218                     }
 219
 220                     _iMouseButtons &= ~(1 << mData.getButton());
 221
 222                     editSFProcessing()->setValue(false);
 223                 }
 224             }
 225             else
 226             {
 227                 if(_sfProcessing.getValue() == 0x01)
 228                 {
 229                     Real32 a,b,c,d;
 230
 231                     if(mData.getMode() == MouseData::RelValues)
 232                     {
 233                         a = 0.f;
 234                         b = 0.f;
 235
 236                         c = mData.getX();
 237                         d = mData.getY();
 238                     }
 239                     else
 240                     {
 241 //                        Real32 w = mData.getWindow()->getWidth ();
 242 //                        Real32 h = mData.getWindow()->getHeight();
 243
 244                         Real32 w = 0.f;
 245                         Real32 h = 0.f;
 246
 247                         if(mData.getViewport() != NULL)
 248                         {
 249                             w = mData.getViewport()->calcPixelWidth ();
 250                             h = mData.getViewport()->calcPixelHeight();
 251                         }
 252                         else
 253                         {
 254                             w = mData.getWindow()->getWidth ();
 255                             h = mData.getWindow()->getHeight();
 256                         }
 257
 258                         Real32 x = mData.getX();
 259                         Real32 y = mData.getY();
 260
 261                         a = -2.0 * (_iLastX / w - 0.5);
 262                         b = -2.0 * (0.5 - _iLastY / h);
 263                         c = -2.0 * (  x / w - 0.5   );
 264                         d = -2.0 * (0.5 - y / h     );
 265                     }
 266
 267                     if(_iMouseButtons & (1 << MouseData::LeftButton))
 268                     {
 269                         _oTrackball.updateRotation(a, b, c, d);
 270                     }
 271                     else if(_iMouseButtons & (1 << MouseData::MiddleButton))
 272                     {
 273                         _oTrackball.updatePosition(a, b, c, d);
 274                     }
 275                     else if(_iMouseButtons & (1 << MouseData::RightButton))
 276                     {
 277                         _oTrackball.updatePositionNeg(a, b, c, d);
 278                     }
 279
 280                     editSFMatrixResult()->setValue(
 281                         _oTrackball.getFullTrackballMatrix());
 282
 283                     editSFRotationMatrixResult()->setValue(
 284                         _oTrackball.getRotationMatrix());
 285                 }
 286             }
 287
 288             _iLastX = mData.getX();
 289             _iLastY = mData.getY();
 290         }
 291     }
 292
 293     if(0x0000 != (whichField & ReferencePositionFieldMask))
 294     {
 295         _oTrackball.setStartPosition(_sfReferencePosition.getValue()[0],
 296                                      _sfReferencePosition.getValue()[1],
 297                                      _sfReferencePosition.getValue()[2],
 298                                       true                             );
 299
 300         editSFMatrixResult()->setValue(_oTrackball.getFullTrackballMatrix());
 301
 302         editSFRotationMatrixResult()->setValue(_oTrackball.getRotationMatrix());
 303     }
 304
 305     if(0x0000 != (whichField & ReferenceMatrixFieldMask))
 306     {
 307         Matrix m;
 308
 309         m.setValue(&(_sfReferenceMatrix.getValue()[0][0]));
 310
 311         Quaternion so;
 312         Vec3f      s;
 313         Vec3f      trans;
 314         Quaternion ro;
 315         Vec3f      cnt;
 316
 317         cnt[0] = _sfTransformCenter.getValue()[0];
 318         cnt[1] = _sfTransformCenter.getValue()[1];
 319         cnt[2] = _sfTransformCenter.getValue()[2];
 320
 321         m.getTransform(trans, ro, s, so, cnt);
 322
 323         _oTrackball.setStartRotation(ro, true);
 324
 325         ro.invert();
 326         ro.multVec(trans, trans);
 327
 328         _oTrackball.setStartPosition(trans[0],
 329                                      trans[1],
 330                                      trans[2],
 331                                      true);
 332
 333         editSFMatrixResult()->setValue(_oTrackball.getFullTrackballMatrix());
 334         editSFRotationMatrixResult()->setValue(_oTrackball.getRotationMatrix());
 335     }
 336
 337     if(0x0000 != (whichField & TransformCenterFieldMask))
 338     {
 339         _oTrackball.setRotationCenter(_sfTransformCenter.getValue());
 340     }
 341
 342     if(0x0000 != (whichField & WorldDiagFieldMask))
 343     {
 344         _oTrackball.setTranslationScale(((_sfWorldDiag.getValue()[0] +
 345                                           _sfWorldDiag.getValue()[1] +
 346                                           _sfWorldDiag.getValue()[2]) / 5.f) *
 347                                         _sfTranslationScaleFactor.getValue());
 348     }
 349
 350     if(0x0000 != (whichField & ResetFieldMask))
 351     {
 352         _oTrackball.reset();
 353
 354         editSFMatrixResult()->setValue(_oTrackball.getFullTrackballMatrix());
 355         editSFRotationMatrixResult()->setValue(_oTrackball.getRotationMatrix());
 356     }
 357
 358     Inherited::changed(whichField, origin, details);
 359 }
 360
 361 void CSMTrackball::dump(      UInt32    ,
 362                          const BitVector ) const
 363 {
 364     SLOG << "Dump CSMTrackball NI" << std::endl;
 365 }
 366
 367 OSG_END_NAMESPACE