From 046c3fca7a1847bd3b7fcf92a2d64f80a83ce613 Mon Sep 17 00:00:00 2001 From: Robert Osfield Date: Tue, 7 May 2013 14:43:36 +0000 Subject: [PATCH] Cleaned up event handler and namespaces in prep for integrating keystone functionality into osgViewer --- examples/osgkeystone/osgkeystone.cpp | 218 ++++++++++++++------------- 1 file changed, 113 insertions(+), 105 deletions(-) diff --git a/examples/osgkeystone/osgkeystone.cpp b/examples/osgkeystone/osgkeystone.cpp index c48d758b7..cdb4f1669 100644 --- a/examples/osgkeystone/osgkeystone.cpp +++ b/examples/osgkeystone/osgkeystone.cpp @@ -30,7 +30,10 @@ #include -class Keystone : public osg::Referenced +namespace osg +{ + +class Keystone : public osg::Object { public: Keystone(): @@ -41,6 +44,16 @@ public: top_left(-1.0,1.0), top_right(1.0,1.0) {} + Keystone(const Keystone& rhs, const osg::CopyOp&): + keystoneEditingEnabled(rhs.keystoneEditingEnabled), + gridColour(rhs.gridColour), + bottom_left(rhs.bottom_left), + bottom_right(rhs.bottom_right), + top_left(rhs.top_left), + top_right(rhs.top_right) {} + + META_Object(osg, Keystone) + void reset() { bottom_left.set(-1.0,-1.0); @@ -89,15 +102,22 @@ public: br = osg::Vec3(screenWidth*0.5*bottom_right.x(), screenHeight*0.5*bottom_right.y(), -screenDistance)*r_right*r_bottom; bl = osg::Vec3(screenWidth*0.5*bottom_left.x(), screenHeight*0.5*bottom_left.y(), -screenDistance)*r_left*r_bottom; } + +protected: + + virtual ~Keystone() {} + + }; +} class KeystoneHandler : public osgGA::GUIEventHandler { public: - KeystoneHandler(Keystone* keystone); + KeystoneHandler(osg::Keystone* keystone); ~KeystoneHandler() {} @@ -127,22 +147,22 @@ public: protected: - osg::ref_ptr _keystone; + osg::ref_ptr _keystone; - osg::Vec2d _defaultIncrement; - osg::Vec2d _ctrlIncrement; - osg::Vec2d _shiftIncrement; - osg::Vec2d _keyIncrement; + osg::Vec2d _defaultIncrement; + osg::Vec2d _ctrlIncrement; + osg::Vec2d _shiftIncrement; + osg::Vec2d _keyIncrement; - osg::Vec2d _startPosition; - osg::ref_ptr _startControlPoints; + osg::Vec2d _startPosition; + osg::ref_ptr _startControlPoints; - Region _selectedRegion; - osg::ref_ptr _currentControlPoints; + Region _selectedRegion; + osg::ref_ptr _currentControlPoints; }; -KeystoneHandler::KeystoneHandler(Keystone* keystone): +KeystoneHandler::KeystoneHandler(osg::Keystone* keystone): _keystone(keystone), _defaultIncrement(0.0,0.0), _ctrlIncrement(1.0,1.0), @@ -150,7 +170,7 @@ KeystoneHandler::KeystoneHandler(Keystone* keystone): _keyIncrement(0.005, 0.005), _selectedRegion(NONE_SELECTED) { - _startControlPoints = new Keystone; + _startControlPoints = new osg::Keystone; _currentControlPoints = keystone; //new Keystone; } @@ -239,6 +259,15 @@ bool KeystoneHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionA if (!viewport) return false; + if (ea.getEventType()==osgGA::GUIEventAdapter::KEYDOWN) + { + if (ea.getUnmodifiedKey()=='g' && (ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_LEFT_CTRL || ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_RIGHT_CTRL)) + { + setKeystoneEditingEnabled(!getKeystoneEditingEnabled()); + return true; + } + } + bool haveCameraMatch = false; float x = ea.getXnormalized(); float y = ea.getYnormalized(); @@ -254,103 +283,82 @@ bool KeystoneHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionA } } - - if (!haveCameraMatch) return false; + if (!haveCameraMatch || !getKeystoneEditingEnabled()) return false; switch(ea.getEventType()) { case(osgGA::GUIEventAdapter::PUSH): { - if (getKeystoneEditingEnabled()) + osg::Vec2d scale = incrementScale(ea); + if (scale.length2()!=0.0) { - osg::Vec2d scale = incrementScale(ea); - if (scale.length2()!=0.0) - { - _selectedRegion = computeRegion(ea); - (*_startControlPoints) = (*_currentControlPoints); - _startPosition.set(x,y); - } - else - { - _selectedRegion = NONE_SELECTED; - } + _selectedRegion = computeRegion(ea); + (*_startControlPoints) = (*_currentControlPoints); + _startPosition.set(x,y); } - return false; - } - case(osgGA::GUIEventAdapter::DRAG): - { - if (getKeystoneEditingEnabled()) - { - if (_selectedRegion!=NONE_SELECTED) - { - (*_currentControlPoints) = (*_startControlPoints); - osg::Vec2d currentPosition(x, y); - osg::Vec2d delta(currentPosition-_startPosition); - osg::Vec2d scale = incrementScale(ea); - move(_selectedRegion, osg::Vec2d(delta.x()*scale.x(), delta.y()*scale.y()) ); - return true; - } - } - return false; - } - case(osgGA::GUIEventAdapter::RELEASE): - { - if (getKeystoneEditingEnabled()) + else { _selectedRegion = NONE_SELECTED; } return false; } + case(osgGA::GUIEventAdapter::DRAG): + { + if (_selectedRegion!=NONE_SELECTED) + { + (*_currentControlPoints) = (*_startControlPoints); + osg::Vec2d currentPosition(x, y); + osg::Vec2d delta(currentPosition-_startPosition); + osg::Vec2d scale = incrementScale(ea); + move(_selectedRegion, osg::Vec2d(delta.x()*scale.x(), delta.y()*scale.y()) ); + return true; + } + return false; + } + case(osgGA::GUIEventAdapter::RELEASE): + { + _selectedRegion = NONE_SELECTED; + return false; + } case(osgGA::GUIEventAdapter::KEYDOWN): { - if (getKeystoneEditingEnabled()) + if (ea.getKey()=='r') { - if (ea.getUnmodifiedKey()=='g' && (ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_LEFT_CTRL || ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_RIGHT_CTRL)) - { - setKeystoneEditingEnabled(false); - } - else if (ea.getKey()=='r') - { - _selectedRegion = NONE_SELECTED; - _startControlPoints->reset(); - _currentControlPoints->reset(); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Up) - { - move(computeRegion(ea), osg::Vec2d(0.0, _keyIncrement.y()*incrementScale(ea).y()) ); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Down) - { - move(computeRegion(ea), osg::Vec2d(0.0, -_keyIncrement.y()*incrementScale(ea).y()) ); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left) - { - move(computeRegion(ea), osg::Vec2d(-_keyIncrement.x()*incrementScale(ea).x(), 0.0) ); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right) - { - move(computeRegion(ea), osg::Vec2d(_keyIncrement.x()*incrementScale(ea).x(), 0.0) ); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_7 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Home) - { - _currentControlPoints->top_left.set(x, y); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_9 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Page_Up) - { - _currentControlPoints->top_right.set(x, y); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_3 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Page_Down) - { - _currentControlPoints->bottom_right.set(x, y); - } - else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_1 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_End) - { - _currentControlPoints->bottom_left.set(x, y); - } + _selectedRegion = NONE_SELECTED; + _startControlPoints->reset(); + _currentControlPoints->reset(); } - else if (ea.getUnmodifiedKey()=='g' && (ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_LEFT_CTRL || ea.getModKeyMask()==osgGA::GUIEventAdapter::MODKEY_RIGHT_CTRL)) + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Up) { - setKeystoneEditingEnabled(true); + move(computeRegion(ea), osg::Vec2d(0.0, _keyIncrement.y()*incrementScale(ea).y()) ); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Down) + { + move(computeRegion(ea), osg::Vec2d(0.0, -_keyIncrement.y()*incrementScale(ea).y()) ); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left) + { + move(computeRegion(ea), osg::Vec2d(-_keyIncrement.x()*incrementScale(ea).x(), 0.0) ); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right) + { + move(computeRegion(ea), osg::Vec2d(_keyIncrement.x()*incrementScale(ea).x(), 0.0) ); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_7 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Home) + { + _currentControlPoints->top_left.set(x, y); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_9 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Page_Up) + { + _currentControlPoints->top_right.set(x, y); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_3 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Page_Down) + { + _currentControlPoints->bottom_right.set(x, y); + } + else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_1 || ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_End) + { + _currentControlPoints->bottom_left.set(x, y); } return false; } @@ -360,7 +368,7 @@ bool KeystoneHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionA } struct KeystoneCullCallback : public osg::Drawable::CullCallback { - KeystoneCullCallback(Keystone* keystone=0):_keystone(keystone) {} + KeystoneCullCallback(osg::Keystone* keystone=0):_keystone(keystone) {} KeystoneCullCallback(const KeystoneCullCallback&, const osg::CopyOp&) {} META_Object(osg,KeystoneCullCallback); @@ -371,13 +379,13 @@ struct KeystoneCullCallback : public osg::Drawable::CullCallback return _keystone.valid() ? !_keystone->keystoneEditingEnabled : true; } - osg::ref_ptr _keystone; + osg::ref_ptr _keystone; }; struct KeystoneUpdateCallback : public osg::Drawable::UpdateCallback { - KeystoneUpdateCallback(Keystone* keystone=0):_keystone(keystone) {} + KeystoneUpdateCallback(osg::Keystone* keystone=0):_keystone(keystone) {} KeystoneUpdateCallback(const KeystoneUpdateCallback&, const osg::CopyOp&) {} META_Object(osg,KeystoneUpdateCallback); @@ -414,11 +422,11 @@ struct KeystoneUpdateCallback : public osg::Drawable::UpdateCallback geometry->dirtyBound(); } - osg::ref_ptr _keystone; + osg::ref_ptr _keystone; }; -osg::Geode* createKeystoneDistortionMesh(Keystone* keystone) +osg::Geode* createKeystoneDistortionMesh(osg::Keystone* keystone) { osg::ref_ptr geode = new osg::Geode; @@ -483,7 +491,7 @@ osg::Geode* createKeystoneDistortionMesh(Keystone* keystone) return geode.release(); } -osg::Node* createGrid(Keystone* keystone, const osg::Vec4& colour) +osg::Node* createGrid(osg::Keystone* keystone, const osg::Vec4& colour) { osg::ref_ptr geode = new osg::Geode; @@ -623,7 +631,7 @@ osg::Camera* assignKeystoneRenderToTextureCamera(osgViewer::View* view, osg::Gra return camera.release(); } -osg::Camera* assignKeystoneDistortionCamera(osgViewer::View* view, osg::DisplaySettings* ds, osg::GraphicsContext* gc, int x, int y, int width, int height, GLenum buffer, osg::Texture* texture, Keystone* keystone) +osg::Camera* assignKeystoneDistortionCamera(osgViewer::View* view, osg::DisplaySettings* ds, osg::GraphicsContext* gc, int x, int y, int width, int height, GLenum buffer, osg::Texture* texture, osg::Keystone* keystone) { double screenDistance = ds->getScreenDistance(); double screenWidth = ds->getScreenWidth(); @@ -845,7 +853,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds) ds->setUseSceneViewForStereoHint(false); - osg::ref_ptr keystone = new Keystone; + osg::ref_ptr keystone = new osg::Keystone; // set up view's main camera @@ -1114,7 +1122,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds) left_keystone_camera->addEventCallback(new KeystoneHandler(keystone.get())); - osg::ref_ptr right_keystone = new Keystone; + osg::ref_ptr right_keystone = new osg::Keystone; right_keystone->gridColour.set(0.0f,1.0f,0.0,1.0); // create Keystone right distortion camera @@ -1207,7 +1215,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds) left_keystone_camera->addEventCallback(new KeystoneHandler(keystone.get())); - osg::ref_ptr right_keystone = new Keystone; + osg::ref_ptr right_keystone = new osg::Keystone; right_keystone->gridColour.set(0.0f,1.0f,0.0,1.0); // create Keystone right distortion camera @@ -1399,7 +1407,7 @@ void setUpViewForStereo(osgViewer::View* view, osg::DisplaySettings* ds) } -void setUpViewForKeystone(osgViewer::View* view, Keystone* keystone) +void setUpViewForKeystone(osgViewer::View* view, osg::Keystone* keystone) { int screenNum = 0; @@ -1501,7 +1509,7 @@ int main( int argc, char **argv ) } else { - setUpViewForKeystone(&viewer, new Keystone); + setUpViewForKeystone(&viewer, new osg::Keystone); } viewer.realize();