Panda3D
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00001 // Filename: ButtonNode.h 00002 // Created by: drose (12Mar02) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef BUTTONNODE_H 00016 #define BUTTONNODE_H 00017 00018 #include "pandabase.h" 00019 00020 #include "clientBase.h" 00021 #include "clientButtonDevice.h" 00022 #include "dataNode.h" 00023 #include "buttonEventList.h" 00024 00025 00026 //////////////////////////////////////////////////////////////////// 00027 // Class : ButtonNode 00028 // Description : This is the primary interface to on/off button 00029 // devices associated with a ClientBase. This creates a 00030 // node that connects to the named button device, if it 00031 // exists, and provides hooks to the user to read the 00032 // state of any of the sequentially numbered buttons 00033 // associated with that device. 00034 // 00035 // It also can associate an arbitrary ButtonHandle with 00036 // each button; when buttons are associated with 00037 // ButtonHandles, this node will put appropriate up and 00038 // down events on the data graph for each button state 00039 // change. 00040 //////////////////////////////////////////////////////////////////// 00041 class EXPCL_PANDA_DEVICE ButtonNode : public DataNode { 00042 PUBLISHED: 00043 ButtonNode(ClientBase *client, const string &device_name); 00044 virtual ~ButtonNode(); 00045 00046 INLINE bool is_valid() const; 00047 00048 INLINE int get_num_buttons() const; 00049 00050 INLINE void set_button_map(int index, ButtonHandle button); 00051 INLINE ButtonHandle get_button_map(int index) const; 00052 00053 INLINE bool get_button_state(int index) const; 00054 INLINE bool is_button_known(int index) const; 00055 00056 public: 00057 virtual void output(ostream &out) const; 00058 virtual void write(ostream &out, int indent_level = 0) const; 00059 00060 private: 00061 PT(ClientButtonDevice) _button; 00062 00063 protected: 00064 // Inherited from DataNode 00065 virtual void do_transmit_data(DataGraphTraverser *trav, 00066 const DataNodeTransmit &input, 00067 DataNodeTransmit &output); 00068 00069 private: 00070 // outputs 00071 int _button_events_output; 00072 PT(ButtonEventList) _button_events; 00073 00074 public: 00075 static TypeHandle get_class_type() { 00076 return _type_handle; 00077 } 00078 static void init_type() { 00079 DataNode::init_type(); 00080 register_type(_type_handle, "ButtonNode", 00081 DataNode::get_class_type()); 00082 } 00083 virtual TypeHandle get_type() const { 00084 return get_class_type(); 00085 } 00086 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00087 00088 private: 00089 static TypeHandle _type_handle; 00090 }; 00091 00092 #include "buttonNode.I" 00093 00094 #endif