126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
/* -*-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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