coMousePointer.h

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/* This file is part of COVISE.
 
   You can use it under the terms of the GNU Lesser General Public License
   version 2.1 or later, see lgpl-2.1.txt.
 
 * License: LGPL 2+ */
 
/************************************************************************
 *                                  *
 *                                          *
 *                            (C) 2001                  *
 *              Computer Centre University of Stuttgart         *
 *                         Allmandring 30               *
 *                       D-70550 Stuttgart              *
 *                            Germany                   *
 *                                  *
 *                                  *
 *  File            coMousePointer.h (Performer 2.0)    *
 *                                  *
 *  Description     Mouse support for COVER
 *                                  *
 *  Author      Uwe Woessner                *
 *                                  *
 *  Date            19.09.2001              *
 *                                  *
 *  Status          none                    *
 *                                  *
 ************************************************************************/
 
#ifndef MOUSE_POINTER_H
#define MOUSE_POINTER_H
 
#include <util/common.h>
#include <osg/Matrix>
 
namespace opencover
{
 
class ButtonDevice;
class TrackingBody;
 
struct MouseEvent
{
    int type, state, code;
};
 
class COVEREXPORT coMousePointer
{
    friend class Input;
 
private:
    coMousePointer();
    ~coMousePointer();
 
    float width, height;
    int xres, yres, xori, yori;
    float screenX, screenY, screenZ;
    float screenH, screenP, screenR;
 
    int wheelCounter[2], newWheelCounter[2]; // vertical and horizontal
    float mouseX, mouseY;
    typedef std::deque<MouseEvent> EventQueue;
    EventQueue eventQueue;
    double mouseTime, mouseButtonTime;
    void queueEvent(int type, int state, int code);
    void processEvents();
 
    ButtonDevice *buttons = nullptr;
    TrackingBody *body = nullptr;
    bool buttonPressed = false;
 
public:
    // frame time of last mouse event
    double eventTime() const;
 
    // process mouse events
    void handleEvent(int type, int state, int code, bool queue = true);
 
    void update();
#if 0
    void setMatrix(const osg::Matrix &mat);
#endif
    const osg::Matrix &getMatrix() const;
 
    float x() const;
 
    float y() const;
 
    float winWidth() const;
 
    float winHeight() const;
 
    float screenWidth() const;
 
    float screenHeight() const;
 
    int wheel(size_t num = 0) const;
 
    unsigned int buttonState() const;
};
}
#endif