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SceneGraph.cc
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44 * $Revision$ *
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48 \*===========================================================================*/
49
50
51
52
53 //=============================================================================
54 //
55 // CLASS SceneGraph - IMPLEMENTATION
56 //
57 //=============================================================================
58
59 //== INCLUDES =================================================================
60
61
62 #include <ACG/Scenegraph/SceneGraph.hh>
63
64
65 //== NAMESPACES ==============================================================
66
67 namespace ACG {
68 namespace SceneGraph {
69
70
71 //== IMPLEMENTATION ==========================================================
72
83 BaseNode* find_node(BaseNode* _root, unsigned int _node_idx)
84 {
85 FindNodeAction action(_node_idx);
86 traverse(_root, action);
87 return action.node_ptr();
88 }
89
90
91 //----------------------------------------------------------------------------
92
99 BaseNode* find_hidden_node(BaseNode* _root, unsigned int _node_idx)
100 {
101 FindNodeAction action(_node_idx);
102 traverse_all(_root, action);
103 return action.node_ptr();
104 }
105
106
107 //----------------------------------------------------------------------------
108
109
110 bool PickAction::operator()(BaseNode* _node)
111 {
112 // If picking is disabled for the given Node, return here
113 // As this is not a failure return true;
114 if ( !_node->pickingEnabled() )
115 return true;
116
117 ACG::GLState::disable(GL_LIGHTING);
118 ACG::GLState::disable(GL_DITHER);
119 ACG::GLState::shadeModel(GL_FLAT);
120
121 state_.pick_push_name ((GLuint) _node->id());
122
123 _node->pick(state_, pickTarget_);
124
125 state_.pick_pop_name ();
126 return true;
127 }
128
129 bool PickAction::operator()(BaseNode* _node, GLState& /*_state*/) {
130 return operator()(_node);
131 }
132
133
134 //=============================================================================
135 } // namespace SceneGraph
136 } // namespace ACG
137 //=============================================================================
ACG::SceneGraph::PickAction::operator()
bool operator()(BaseNode *_node)
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:135
ACG::SceneGraph::ACG::GLState::disable
static void disable(GLenum _cap)
replaces glDisable, but supports locking
ACG::SceneGraph::ACG::GLState
Definition: MeshNode2T.cc:220
ACG::SceneGraph::ACG::SceneGraph::BaseNode::pickingEnabled
bool pickingEnabled()
Definition: MeshNode2T.cc:245
ACG::SceneGraph::ACG::GLState::shadeModel
static void shadeModel(GLenum _mode)
replaces glShadeModel, supports locking
ACG::SceneGraph::ACG::SceneGraph::BaseNode::pick
virtual void pick(GLState &, PickTarget)
Definition: MeshNode2T.cc:230
ACG::SceneGraph::ACG::SceneGraph::BaseNode::id
unsigned int id() const
Definition: MeshNode2T.cc:399
ACG::SceneGraph::FindNodeAction::node_ptr
BaseNode * node_ptr()
Get the pointer of the node (is 0 if node was not found)
Definition: SceneGraph.hh:548
ACG::GLState::pick_push_name
void pick_push_name(unsigned int _idx)
creates a new name the stack (like glPushName())
Definition: GLState.cc:1073
SceneGraph.hh
ACG::SceneGraph::find_hidden_node
BaseNode * find_hidden_node(BaseNode *_root, unsigned int _node_idx)
Find a node in the scene graph.
Definition: SceneGraph.cc:99
ACG::SceneGraph::traverse_all
void traverse_all(BaseNode *_node, Action &_action)
Definition: SceneGraph.hh:208
ACG::SceneGraph::find_node
BaseNode * find_node(BaseNode *_root, unsigned int _node_idx)
Find a node in the scene graph.
Definition: SceneGraph.cc:83
ACG::SceneGraph::FindNodeAction
Definition: SceneGraph.hh:529
ACG::SceneGraph::ACG::SceneGraph::BaseNode
Definition: MeshNode2T.cc:135
ACG::SceneGraph::traverse
void traverse(BaseNode *_node, Action &_action)
Definition: SceneGraph.hh:143
ACG::GLState::pick_pop_name
void pick_pop_name()
pops the current name from the stack (like glPopName())
Definition: GLState.cc:1080