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125 lines
3.6 KiB
125 lines
3.6 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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// Code by: Jeremy Moles (cubicool) 2007-2008 |
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#ifndef OSGWIDGET_VIEWER_EVENT_HANDLERS |
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#define OSGWIDGET_VIEWER_EVENT_HANDLERS |
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#include <osgGA/GUIEventAdapter> |
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#include <osgGA/GUIEventHandler> |
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#include <osgWidget/WindowManager> |
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// NOTE! These are all just examples of some default event handlers--they are not |
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// required. You are more than welcome to provide your own even handlers that |
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// communicate with a WindowManager using it's public API. |
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namespace osgWidget { |
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// This handles the pressing/moving of mouse buttons, etc. |
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class OSGWIDGET_EXPORT MouseHandler: public osgGA::GUIEventHandler |
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{ |
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public: |
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MouseHandler(WindowManager*); |
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virtual bool handle( |
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const osgGA::GUIEventAdapter&, |
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osgGA::GUIActionAdapter&, |
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osg::Object*, |
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osg::NodeVisitor* |
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); |
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typedef bool (MouseHandler::*MouseAction)(float, float, int); |
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typedef bool (WindowManager::*MouseEvent)(float, float); |
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protected: |
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osg::observer_ptr<WindowManager> _wm; |
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bool _handleMousePush (float, float, int); |
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bool _handleMouseRelease (float, float, int); |
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bool _handleMouseDoubleClick (float, float, int); |
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bool _handleMouseDrag (float, float, int); |
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bool _handleMouseMove (float, float, int); |
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bool _handleMouseScroll (float, float, int); |
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MouseAction _isMouseEvent (osgGA::GUIEventAdapter::EventType) const; |
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bool _doMouseEvent (float, float, MouseEvent); |
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}; |
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// This handles the forwarding of keypress events. |
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class OSGWIDGET_EXPORT KeyboardHandler: public osgGA::GUIEventHandler |
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{ |
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public: |
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KeyboardHandler(WindowManager*); |
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virtual bool handle( |
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const osgGA::GUIEventAdapter&, |
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osgGA::GUIActionAdapter&, |
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osg::Object*, |
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osg::NodeVisitor* |
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); |
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protected: |
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osg::observer_ptr<WindowManager> _wm; |
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}; |
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// This class offers a default kind of handling for resizing. |
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class OSGWIDGET_EXPORT ResizeHandler: public osgGA::GUIEventHandler |
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{ |
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public: |
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ResizeHandler(WindowManager*, osg::Camera* = 0); |
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virtual bool handle( |
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const osgGA::GUIEventAdapter&, |
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osgGA::GUIActionAdapter&, |
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osg::Object*, |
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osg::NodeVisitor* |
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); |
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protected: |
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osg::observer_ptr<WindowManager> _wm; |
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osg::observer_ptr<osg::Camera> _camera; |
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}; |
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// This class provides a hotkey that lets you toggle back and forth between |
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// a camera and setting the CameraManipulator's home point. |
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class OSGWIDGET_EXPORT CameraSwitchHandler: public osgGA::GUIEventHandler |
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{ |
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public: |
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CameraSwitchHandler(WindowManager*, osg::Camera*); |
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virtual bool handle( |
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const osgGA::GUIEventAdapter&, |
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osgGA::GUIActionAdapter&, |
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osg::Object*, |
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osg::NodeVisitor* |
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); |
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protected: |
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osg::observer_ptr<WindowManager> _wm; |
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osg::observer_ptr<osg::Camera> _camera; |
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osg::ref_ptr<osg::Node> _oldNode; |
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}; |
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} |
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#endif
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