Panda3D
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00001 // Filename: pgTop.h 00002 // Created by: drose (13Mar02) 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 PGTOP_H 00016 #define PGTOP_H 00017 00018 #include "pandabase.h" 00019 00020 #include "pgMouseWatcherGroup.h" 00021 00022 #include "pandaNode.h" 00023 #include "mouseWatcher.h" 00024 #include "pointerTo.h" 00025 00026 class GraphicsStateGuardian; 00027 class PGMouseWatcherGroup; 00028 00029 //////////////////////////////////////////////////////////////////// 00030 // Class : PGTop 00031 // Description : The "top" node of the new Panda GUI system. This 00032 // node must be parented to the 2-d scene graph, and all 00033 // PG objects should be parented to this node or 00034 // somewhere below it. PG objects not parented within 00035 // this hierarchy will not be clickable. 00036 // 00037 // This node begins the special traversal of the PG 00038 // objects that registers each node within the 00039 // MouseWatcher and forces everything to render in a 00040 // depth-first, left-to-right order, appropriate for 2-d 00041 // objects. 00042 //////////////////////////////////////////////////////////////////// 00043 class EXPCL_PANDA_PGUI PGTop : public PandaNode { 00044 PUBLISHED: 00045 PGTop(const string &name); 00046 virtual ~PGTop(); 00047 00048 protected: 00049 INLINE PGTop(const PGTop ©); 00050 00051 public: 00052 virtual PandaNode *make_copy() const; 00053 virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data); 00054 virtual bool is_renderable() const; 00055 00056 PUBLISHED: 00057 void set_mouse_watcher(MouseWatcher *watcher); 00058 INLINE MouseWatcher *get_mouse_watcher() const; 00059 INLINE MouseWatcherGroup *get_group() const; 00060 00061 INLINE void set_start_sort(int start_sort); 00062 INLINE int get_start_sort() const; 00063 00064 public: 00065 // These methods duplicate the functionality of MouseWatcherGroup. 00066 INLINE void add_region(MouseWatcherRegion *region); 00067 INLINE void clear_regions(); 00068 00069 private: 00070 PT(MouseWatcher) _watcher; 00071 PT(PGMouseWatcherGroup) _watcher_group; 00072 int _start_sort; 00073 00074 public: 00075 static TypeHandle get_class_type() { 00076 return _type_handle; 00077 } 00078 static void init_type() { 00079 PandaNode::init_type(); 00080 register_type(_type_handle, "PGTop", 00081 PandaNode::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 friend class PGMouseWatcherGroup; 00092 }; 00093 00094 #include "pgTop.I" 00095 00096 #endif