OSGScreenGroup.cpp
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00043 #include <stdlib.h>
00044 #include <stdio.h>
00045
00046 #include <OSGConfig.h>
00047
00048 #include "OSGScreenGroup.h"
00049 #include "OSGIntersectAction.h"
00050 #include "OSGRenderAction.h"
00051 #include "OSGViewport.h"
00052 #include "OSGCamera.h"
00053
00054 OSG_BEGIN_NAMESPACE
00055
00056
00057
00058
00059
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00067
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00069
00070
00071 void ScreenGroup::initMethod(InitPhase ePhase)
00072 {
00073 Inherited::initMethod(ePhase);
00074
00075 if(ePhase == TypeObject::SystemPost)
00076 {
00077 IntersectAction::registerEnterDefault(
00078 ScreenGroup::getClassType(),
00079 reinterpret_cast<Action::Callback>(&ScreenGroup::intersectEnter));
00080
00081 IntersectAction::registerLeaveDefault(
00082 ScreenGroup::getClassType(),
00083 reinterpret_cast<Action::Callback>(&ScreenGroup::intersectLeave));
00084
00085 RenderAction::registerEnterDefault(
00086 ScreenGroup::getClassType(),
00087 reinterpret_cast<Action::Callback>(&ScreenGroup::renderEnter));
00088
00089 RenderAction::registerLeaveDefault(
00090 ScreenGroup::getClassType(),
00091 reinterpret_cast<Action::Callback>(&ScreenGroup::renderLeave));
00092 }
00093 }
00094
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00105
00106 ScreenGroup::ScreenGroup(void) :
00107 Inherited()
00108 {
00109 }
00110
00111 ScreenGroup::ScreenGroup(const ScreenGroup &source) :
00112 Inherited(source)
00113 {
00114 }
00115
00116 ScreenGroup::~ScreenGroup(void)
00117 {
00118 }
00119
00120
00121
00122 void ScreenGroup::changed(BitVector whichField,
00123 UInt32 origin,
00124 BitVector details)
00125 {
00126 Inherited::changed(whichField, origin, details);
00127 }
00128
00129 void ScreenGroup::dump( UInt32 ,
00130 const BitVector ) const
00131 {
00132 SLOG << "Dump ScreenGroup NI" << std::endl;
00133 }
00134
00135
00136
00137
00138 void ScreenGroup::adjustVolume(Volume &volume)
00139 {
00140 volume.transform(_camTransform);
00141 }
00142
00143 void ScreenGroup::accumulateMatrix(Matrix &result)
00144 {
00145 result.mult(_camTransform);
00146 }
00147
00148 void ScreenGroup::calcMatrix( RenderAction *pAction,
00149 const Matrix &mToWorld,
00150 Matrix &mResult )
00151 {
00152 const DrawEnv &oEnv = pAction->getActivePartition()->getDrawEnv();
00153
00154 Matrix mToScreen = oEnv.getVPWorldToScreen();
00155
00156 #if 0
00157 Viewport *viewport = pAction->getViewport();
00158 pAction->getCamera()->getWorldToScreen(mToScreen, *viewport);
00159 #endif
00160
00161 mToScreen.mult(mToWorld);
00162
00163 Pnt3f origin(0.f, 0.f, 0.f);
00164
00165 mToScreen.multFull(origin, origin);
00166
00167 Pnt3f xAxis(1.f, 0.f, 0.f);
00168
00169 mToScreen.multFull(xAxis, xAxis);
00170
00171 Real32 scaleX =
00172 2.f / oEnv.getPixelWidth() / (xAxis - origin).length();
00173
00174 Pnt3f yAxis(0.f, 1.f, 0.f);
00175
00176 mToScreen.multFull(yAxis, yAxis);
00177
00178 Real32 scaleY =
00179 2.f / oEnv.getPixelHeight() / (yAxis - origin).length();
00180
00181 mResult.setScale (scaleX, scaleY, 1.f);
00182 mResult.setTranslate(0.375 * scaleX, 0.375 * scaleY, 0.f);
00183
00184 bool equal = mResult.equals(_camTransform, 0.00001f);
00185
00186 _camTransform = mResult;
00187
00188 if(!equal)
00189 this->invalidateVolume();
00190 }
00191
00192
00193
00194
00195 Action::ResultE ScreenGroup::intersectEnter(Action *action)
00196 {
00197 #if 0
00198 IntersectAction *ia = dynamic_cast<IntersectAction *>(action);
00199 Matrix m(_camTransform);
00200
00201 m.invert();
00202
00203 Pnt3f pos;
00204 Vec3f dir;
00205
00206 #ifndef OSG_2_PREP
00207 m.multFullMatrixPnt(ia->getLine().getPosition (), pos);
00208 m.multMatrixVec (ia->getLine().getDirection(), dir);
00209 #else
00210 m.multFull(ia->getLine().getPosition (), pos);
00211 m.mult (ia->getLine().getDirection(), dir);
00212 #endif
00213
00214 ia->setLine(Line(pos, dir), ia->getMaxDist());
00215 ia->scale(dir.length());
00216 #endif
00217
00218 return Action::Continue;
00219 }
00220
00221 Action::ResultE ScreenGroup::intersectLeave(Action *action)
00222 {
00223 #if 0
00224 IntersectAction *ia = dynamic_cast<IntersectAction *>(action);
00225 Matrix m(_camTransform);
00226
00227 Pnt3f pos;
00228 Vec3f dir;
00229
00230 #ifndef OSG_2_PREP
00231 m.multFullMatrixPnt(ia->getLine().getPosition (), pos);
00232 m.multMatrixVec (ia->getLine().getDirection(), dir);
00233 #else
00234 m.multFull(ia->getLine().getPosition (), pos);
00235 m.mult (ia->getLine().getDirection(), dir);
00236 #endif
00237
00238 ia->setLine(Line(pos, dir), ia->getMaxDist());
00239 ia->scale(dir.length());
00240 #endif
00241
00242 return Action::Continue;
00243 }
00244
00245
00246
00247
00248 Action::ResultE ScreenGroup::renderEnter(Action *action)
00249 {
00250 RenderAction *pAction = dynamic_cast<RenderAction *>(action);
00251
00252 Matrix mMat;
00253
00254 #if 0
00255 if(!pAction->getEffectsPass())
00256 calcMatrix(pAction, pAction->top_matrix(), mMat);
00257 else
00258 mMat = _camTransform;
00259 #else
00260 calcMatrix(pAction, pAction->topMatrix(), mMat);
00261 #endif
00262
00263 pAction->pushMatrix(mMat);
00264
00265
00266
00267
00268 return Action::Continue;
00269 }
00270
00271 Action::ResultE ScreenGroup::renderLeave(Action *action)
00272 {
00273 RenderAction *pAction = dynamic_cast<RenderAction *>(action);
00274
00275 pAction->popMatrix();
00276
00277 return Action::Continue;
00278 }
00279
00280 OSG_END_NAMESPACE
00281
