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RenderPickingPlugin.cc
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49 
50 #include "RenderPickingPlugin.hh"
51 
54 
55 #include <QGLFormat>
56 #include <QMenu>
57 
58 #if QT_VERSION >= 0x050000
59 #include <QtWidgets>
60 #else
61 #include <QtGui>
62 #endif
63 
64 void RenderPickingPlugin::initializePlugin()
65 {
66  pickRendererMode_ = ACG::SceneGraph::PICK_ANYTHING;
67 }
68 
70 
71  QMenu* menu = new QMenu("Picking Renderer Target");
72 
73  // Recreate actionGroup
74  QActionGroup* pickingTargetsGroup = new QActionGroup( this );
75  pickingTargetsGroup->setExclusive( true );
76 
77  // Always set PickAnything ( will be overridden by others)
78  QAction * action = new QAction("PICK_ANYTHING" , pickingTargetsGroup );
79  action->setCheckable( true );
80  action->setChecked(true);
81 
82  action = new QAction("PICK_VERTEX" , pickingTargetsGroup );
83  action->setCheckable( true );
84  if (pickRendererMode_ == ACG::SceneGraph::PICK_VERTEX)
85  action->setChecked(true);
86 
87  action = new QAction("PICK_EDGE" , pickingTargetsGroup );
88  action->setCheckable( true );
89  if (pickRendererMode_ == ACG::SceneGraph::PICK_EDGE)
90  action->setChecked(true);
91 
92  action = new QAction("PICK_SPLINE" , pickingTargetsGroup );
93  action->setCheckable( true );
94  if (pickRendererMode_ == ACG::SceneGraph::PICK_SPLINE)
95  action->setChecked(true);
96 
97  action = new QAction("PICK_FACE" , pickingTargetsGroup );
98  action->setCheckable( true );
99  if (pickRendererMode_ == ACG::SceneGraph::PICK_FACE)
100  action->setChecked(true);
101 
102  action = new QAction("PICK_FRONT_VERTEX" , pickingTargetsGroup );
103  action->setCheckable( true );
104  if (pickRendererMode_ == ACG::SceneGraph::PICK_FRONT_VERTEX)
105  action->setChecked(true);
106 
107  action = new QAction("PICK_FRONT_EDGE" , pickingTargetsGroup );
108  action->setCheckable( true );
109  if (pickRendererMode_ == ACG::SceneGraph::PICK_FRONT_EDGE)
110  action->setChecked(true);
111 
112  action = new QAction("PICK_CELL" , pickingTargetsGroup );
113  action->setCheckable( true );
114  if (pickRendererMode_ == ACG::SceneGraph::PICK_CELL)
115  action->setChecked(true);
116 
117  menu->addActions(pickingTargetsGroup->actions());
118 
119  connect(pickingTargetsGroup,SIGNAL(triggered( QAction * )),this,SLOT(slotPickTargetChanged( QAction * )));
120 
121  return menu->menuAction();
122 }
123 
124 void RenderPickingPlugin::slotPickTargetChanged( QAction * _action) {
125 
126  // Prepare Picking Debugger Flag
127  if ( _action->text() == "PICK_ANYTHING") {
128  pickRendererMode_ = ACG::SceneGraph::PICK_ANYTHING;
129  } else if ( _action->text() == "PICK_VERTEX") {
130  pickRendererMode_ = ACG::SceneGraph::PICK_VERTEX;
131  } else if ( _action->text() == "PICK_EDGE") {
132  pickRendererMode_ = ACG::SceneGraph::PICK_EDGE;
133  } else if ( _action->text() == "PICK_SPLINE") {
134  pickRendererMode_ = ACG::SceneGraph::PICK_SPLINE;
135  } else if ( _action->text() == "PICK_FACE") {
136  pickRendererMode_ = ACG::SceneGraph::PICK_FACE;
137  } else if ( _action->text() == "PICK_FRONT_VERTEX") {
138  pickRendererMode_ = ACG::SceneGraph::PICK_FRONT_VERTEX;
139  } else if ( _action->text() == "PICK_FRONT_EDGE") {
140  pickRendererMode_ = ACG::SceneGraph::PICK_FRONT_EDGE;
141  } else if ( _action->text() == "PICK_CELL") {
142  pickRendererMode_ = ACG::SceneGraph::PICK_CELL;
143  } else {
144  std::cerr << "Error : optionHandling unable to find pick mode!!! " << _action->text().toStdString() << std::endl;
145  pickRendererMode_ = ACG::SceneGraph::PICK_ANYTHING;
146  }
147 
148 }
149 
150 QString RenderPickingPlugin::rendererName() {
151  return QString("Picking renderer");
152 }
153 
154 void RenderPickingPlugin::supportedDrawModes(ACG::SceneGraph::DrawModes::DrawMode& _mode) {
156 }
157 
158 
159 void RenderPickingPlugin::render(ACG::GLState* _glState, Viewer::ViewerProperties& _properties) {
160 
161  ACG::GLState::disable(GL_LIGHTING);
162  ACG::GLState::disable(GL_BLEND);
163  glClear(GL_DEPTH_BUFFER_BIT);
164 
165  // do the picking
166  _glState->pick_init (true);
167  ACG::SceneGraph::PickAction action(*_glState, pickRendererMode_, _properties.drawMode());
169 
170  ACG::GLState::enable(GL_LIGHTING);
171  ACG::GLState::enable(GL_BLEND);
172 
173 }
174 
175 QString RenderPickingPlugin::checkOpenGL() {
176  if (!ACG::openGLVersion(2, 0))
177  return QString("Insufficient OpenGL Version! OpenGL 2.0 or higher required");
178 
179  return QString("");
180 }
181 
182 
183 #if QT_VERSION < 0x050000
184  Q_EXPORT_PLUGIN2( renderpickingplugin , RenderPickingPlugin );
185 #endif
186 
Pick spline curve or surface (picks u or u,v coords respectively)
Definition: BaseNode.hh:118
static void enable(GLenum _cap)
replaces glEnable, but supports locking
Definition: GLState.cc:1490
DrawMode DEFAULT
use the default (global) draw mode and not the node's own.
Definition: DrawModes.cc:78
picks faces (should be implemented for all nodes)
Definition: BaseNode.hh:104
pick any of the prior targets (should be implemented for all nodes)
Definition: BaseNode.hh:110
void drawMode(ACG::SceneGraph::DrawModes::DrawMode _mode)
set draw mode (No test if this mode is available!)
bool openGLVersion(const int _major, const int _minor)
Definition: gl.cc:95
void traverse_multipass(BaseNode *_node, Action &_action, const unsigned int &_pass)
Definition: SceneGraph.hh:260
ACG::SceneGraph::BaseNode * getSceneGraphRootNode()
get scenegraph root node
QAction * optionsAction()
Return options menu.
picks verices (may not be implemented for all nodes)
Definition: BaseNode.hh:108
picks edges (may not be implemented for all nodes)
Definition: BaseNode.hh:106
picks only visible front verices (may not be implemented for all nodes)
Definition: BaseNode.hh:115
void pick_init(bool _color)
initialize name/color picking stack (like glInitNames())
Definition: GLState.cc:1039
picks faces (may not be implemented for all nodes)
Definition: BaseNode.hh:102
static void disable(GLenum _cap)
replaces glDisable, but supports locking
Definition: GLState.cc:1504
picks only visible front edges (may not be implemented for all nodes)
Definition: BaseNode.hh:113