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592 lines
14 KiB
592 lines
14 KiB
//-*-C++-*-
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/*
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**************************************************************************
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description
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--------------------
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copyright : (C) 2000-2003 by Andreas Zehender
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email : zehender@kde.org
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**************************************************************************
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**************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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**************************************************************************/
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#ifndef PMGLVIEW_H
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#define PMGLVIEW_H
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <tqwidget.h>
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#include <tqpoint.h>
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#include <tqdatetime.h>
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#include <tqtimer.h>
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#include <tqpixmap.h>
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#include "pmviewbase.h"
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#include "pmviewfactory.h"
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#include "pmcontrolpoint.h"
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#include "pmvector.h"
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#include "pmmatrix.h"
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#include "pmobjectaction.h"
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const int controlPointSize = 7;
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class PMObject;
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class PMPart;
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class PMCamera;
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class TDEConfig;
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class TQComboBox;
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/**
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* Widget for rendering the scene with OpenGL
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*/
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class PMGLView : public PMViewBase
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{
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Q_OBJECT
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public:
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/**
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* Type of the view
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*/
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enum PMViewType { PMViewPosX, PMViewNegX, PMViewPosY, PMViewNegY,
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PMViewPosZ, PMViewNegZ, PMViewCamera };
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/**
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* Constructor
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*/
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PMGLView( PMPart* part, PMViewType t,
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TQWidget* parent = 0, const char* name = 0, WFlags f = 0 );
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/**
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* Destructor
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*/
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~PMGLView( );
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/** */
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virtual TQString viewType( ) const { return TQString( "glview" ); }
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/** */
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virtual TQString description( ) const;
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/** */
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virtual void restoreViewConfig( PMViewOptions* );
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/** */
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virtual void saveViewConfig( PMViewOptions* ) const;
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/**
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* Enables/disables translating the view with the mouse
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*/
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void enableTranslateMode( bool yes = true );
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/**
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* Enables/disables scaling the view with the mouse
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*/
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void enableScaleMode( bool yes = true );
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/**
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* Returns true if the opengl projection is up to date
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*/
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bool isProjectionUpToDate( ) const { return m_projectionUpToDate; }
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/**
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* Sets the projection up to date flag
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*/
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void setProjectionUpToDate( bool yes ) { m_projectionUpToDate = yes; }
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/**
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* Sets the scale
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*/
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void setScale( double scale );
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/**
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* Returns the scale
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*/
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double scale( ) const { return m_dScale; }
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/**
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* Sets the views translation in x direction
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*/
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void setTranslationX( double d );
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/**
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* Returns the views translation in x direction
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*/
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double translationX( ) const { return m_dTransX; }
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/**
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* Sets the views translation in y direction
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*/
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void setTranslationY( double d );
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/**
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* Returns the views translation in y direction
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*/
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double translationY( ) const { return m_dTransY; }
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/**
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* Returns the 2D control points position in the view
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*/
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const TQPtrList<PMVector>& controlPointsPosition( ) const
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{
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return m_controlPointsPosition;
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}
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/**
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* Returns the last right mouse click position
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*/
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PMVector contextClickPosition( ) const { return m_contextClickPosition; }
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/**
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* Returns the view type
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*/
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PMViewType type( ) const { return m_type; }
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/**
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* Sets the view type
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*/
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void setType( PMViewType t );
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/**
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* Sets the camera
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*/
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void setCamera( PMCamera* c );
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/**
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* Returns the camera
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*/
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PMCamera* camera( ) const { return m_pCamera; }
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/**
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* Saves the configuration
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*/
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static void saveConfig( TDEConfig* cfg );
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/**
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* Restores the configuration
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*/
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static void restoreConfig( TDEConfig* cfg );
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/**
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* Returns true if the glx stuff was initialized successfully
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*/
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bool isValid( ) const;
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/**
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* Sets this view as the current rendering view
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*/
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void makeCurrent( );
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/**
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* Swaps the opengl buffers
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*/
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void swapBuffers( );
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/**
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* Returns the view type as string
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*/
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static TQString viewTypeAsString( PMViewType t );
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/**
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* Sets the direct rendering flag
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*/
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static void enableDirectRendering( bool yes ) { s_bDirect = yes; }
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/**
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* Returns the direct rendering flag
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*/
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static bool isDirectRenderingEnabled( ) { return s_bDirect; }
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public slots:
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/**
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* Sets the view normal vector to the positive x-axes
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*/
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void slotSetTypePosX( ) { setType( PMViewPosX ); }
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/**
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* Sets the view normal vector to the negative x-axes
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*/
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void slotSetTypeNegX( ) { setType( PMViewNegX ); }
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/**
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* Sets the view normal vector to the positive y-axes
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*/
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void slotSetTypePosY( ) { setType( PMViewPosY ); }
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/**
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* Sets the view normal vector to the negative y-axes
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*/
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void slotSetTypeNegY( ) { setType( PMViewNegY ); }
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/**
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* Sets the view normal vector to the positive z-axes
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*/
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void slotSetTypePosZ( ) { setType( PMViewPosZ ); }
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/**
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* Sets the view normal vector to the negative z-axes
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*/
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void slotSetTypeNegZ( ) { setType( PMViewNegZ ); }
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/**
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* Called when an object is changed.
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* @see PMPart::objectChanged( )
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*/
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void slotObjectChanged( PMObject* obj, const int mode, TQObject* sender );
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/**
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* Restarts rendering
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*/
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void slotRefresh( );
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/**
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* Clears all data
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*/
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void slotClear( );
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/**
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* Stops rendering
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*/
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void slotStopRendering( );
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/**
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* Repaints the view if it is a camera view
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*/
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void slotActiveRenderModeChanged( );
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/**
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* Connected to the render manager
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*/
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void slotRenderingStarted( PMGLView* view );
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/**
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* Connected to the render manager
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*/
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void slotAboutToUpdate( PMGLView* view );
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/**
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* Connected to the render manager
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*/
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void slotRenderingFinished( PMGLView* view );
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protected slots:
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/**
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* Sets the view type to camera view
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*/
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void slotCameraView( int id );
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/**
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* Called when an object action was selected in the context menu
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*/
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void slotObjectAction( int id );
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/**
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* Called when a control point was selected in the context menu
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*/
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void slotControlPoint( int id );
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/**
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* Aligns the selected control points to the grid
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*/
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void slotSnapToGrid( );
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void slotMouseChangeTimer( );
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void slotAutoScroll( );
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signals:
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/**
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* Emitted when rendering has to be restarted
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*/
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void refresh( PMGLView* w );
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/**
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* Emitted when an object is changed
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*/
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void objectChanged( PMObject* obj, const int mode, TQObject* sender );
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/**
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* Emitted when the mouse is over a control point
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*/
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void controlPointMessage( const TQString& msg );
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/**
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* Emitted in the destructor
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*/
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void destroyed( PMGLView* v );
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/**
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* Emitted when the view type changes
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*/
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void viewTypeChanged( const TQString& str );
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protected:
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/**
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* Initializes the glx stuff
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*/
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virtual void initializeGL( );
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/** */
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virtual void resizeEvent( TQResizeEvent* e );
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/** */
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virtual void paintEvent( TQPaintEvent* e );
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/** */
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virtual void mousePressEvent( TQMouseEvent* e );
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/** */
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virtual void mouseReleaseEvent( TQMouseEvent* e );
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/** */
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virtual void mouseMoveEvent( TQMouseEvent* e );
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/** */
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virtual void keyPressEvent( TQKeyEvent* e );
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/**
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* Event to zoom in / zoom out the viewport by mouse wheel
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*/
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virtual void wheelEvent( TQWheelEvent* e );
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private:
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/**
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* Updates the control points
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*/
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void updateControlPoints( );
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/**
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* Recalculates the position of the control points on the screen
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*/
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void recalculateControlPointPosition( );
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/**
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* Recalculates m_controlPointsTransformation and
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* m_inversePointsTransformation
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*/
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void recalculateTransformations( );
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/**
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* Returns the mouse 3D position, when the control point cp is selected
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*
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* x and y are the screen coordinates of the mouse.
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*/
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PMVector mousePosition( PMControlPoint* cp, int x, int y );
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/**
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* Checks if a control point is under the mouse
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*/
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void checkUnderMouse( int x, int y );
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/**
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* Repaints the view
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*/
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void repaint( bool graphicalChange = false );
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/**
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* Starts a graphical change
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*/
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void startChange( const TQPoint& mousePos );
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/**
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* Graphical Change
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*/
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void graphicalChange( const TQPoint& mousePos );
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/**
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* Selects/deselecs the control point. If cp is 0, all control points are
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* selected/deselected.
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*/
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void selectControlPoint( PMControlPoint* cp, bool select, bool deselectOthers = true );
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/**
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* Invalidates the projection and repaints the view
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*/
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void invalidateProjection( bool graphicaChange = false );
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/**
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* Starts multiple selection mode
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*/
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void startSelection( );
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/**
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* Restores the widget under the selection rect
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*/
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void restoreSelectionBox( );
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/**
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* Saves the widget under the selection rect
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*/
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void saveSelectionBox( );
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/**
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* Paints the selection box
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*/
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void paintSelectionBox( );
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/**
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* Calculates the selection box
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*/
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void calculateSelectionBox( int& sx, int& sy, int& ex, int& ey, int& w, int& h );
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double screenToInternalX( int x ) const;
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double screenToInternalY( int y ) const;
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/**
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* Returns the top level object for rendering (a declaration or the scene)
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*/
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PMObject* topLevelRenderingObject( PMObject* obj ) const;
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/**
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* Displays the context menu
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*/
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void contextMenu( );
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/**
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* Type of the view (camera, xy, ... )
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*/
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PMViewType m_type;
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/**
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* Pointer to the part
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*/
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PMPart* m_pPart;
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/**
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* True if "scale view" is active
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*/
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bool m_bScaleMode;
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double m_scaleIntX, m_scaleIntY;
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/**
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* true if "translate view" is active
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*/
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bool m_bTranslateMode;
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/**
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* True if "scale view" or "translate view" is active and the left
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* mouse button is pressed.
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*/
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bool m_bMousePressed;
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/**
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* MidButton pressed
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*/
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bool m_bMidMousePressed;
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/**
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* True if a graphical change is active
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*/
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bool m_bGraphicalChangeMode;
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bool m_bMementoCreated;
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/**
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* The old mouse position
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*/
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TQPoint m_mousePos;
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TQPoint m_changeStartPos;
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TQPoint m_currentMousePos;
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TQTimer m_startTimer;
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TQTime m_changeStartTime;
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bool m_bDeselectUnderMouse;
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bool m_bSelectUnderMouse;
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/**
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* Member variables for multiple selection mode
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*/
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TQPixmap m_selectionPixmap[4];
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TQPoint m_selectionStart, m_selectionEnd;
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bool m_bMultipleSelectionMode;
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bool m_bSelectionStarted;
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/**
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* Member variables for autoscroll
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*/
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bool m_bAutoScroll;
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double m_autoScrollSpeed;
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TQTimer m_autoScrollTimer;
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TQTime m_lastAutoScrollUpdate;
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int m_autoScrollDirectionX, m_autoScrollDirectionY;
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/**
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* Rendering
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*/
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bool m_bAboutToUpdate;
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/**
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* Scale of the view
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*/
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double m_dScale;
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/**
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* X-translation of the view
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*/
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double m_dTransX;
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/**
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* Y-translation of the view
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*/
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double m_dTransY;
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/**
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* Control points of the active object
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*/
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PMControlPointList m_controlPoints;
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/**
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* Control point under the mouse
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*/
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PMControlPoint* m_pUnderMouse;
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/**
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* Position of the control points on the screen
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*/
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TQPtrList<PMVector> m_controlPointsPosition;
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/**
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* Position of the last right mouse click
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*/
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PMVector m_contextClickPosition;
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/**
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* Transformation of the control points
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*
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* Always m_viewTransformation * m_objectsTransformation.
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*/
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PMMatrix m_controlPointsTransformation;
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/**
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* Inverse of m_controlPointsTransformation
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*/
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PMMatrix m_inversePointsTransformation;
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/**
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* True if m_inversePointsTransformation is valid
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*/
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bool m_bInverseValid;
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/**
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* Normal vector of the view
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*/
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PMVector m_normal;
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/**
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* Transformation of the view (scale and translation)
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*/
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PMMatrix m_viewTransformation;
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/**
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* Transformation of the active object
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*/
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PMMatrix m_objectsTransformation;
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/**
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* The camera
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*/
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PMCamera* m_pCamera;
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PMObject* m_pActiveObject;
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/**
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* true if the opengl projection is up to date
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*/
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bool m_projectionUpToDate;
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int m_visibilityLevel;
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/**
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* The current object actions
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*/
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TQPtrList<PMObjectAction> m_objectActions;
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static bool s_bDirect;
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};
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/**
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* Options class for the opengl view
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*/
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class PMGLViewOptions : public PMViewOptions
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{
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public:
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PMGLViewOptions( )
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{
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m_glViewType = PMGLView::PMViewPosX;
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}
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PMGLViewOptions( PMGLView::PMViewType t )
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{
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m_glViewType = t;
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}
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virtual PMViewOptions* copy( ) const { return new PMGLViewOptions( *this ); }
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virtual TQString viewType( ) const { return TQString( "glview" ); }
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PMGLView::PMViewType glViewType( ) const { return m_glViewType; }
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void setGLViewType( PMGLView::PMViewType t ) { m_glViewType = t; }
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virtual void loadData( TQDomElement& e );
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virtual void saveData( TQDomElement& e );
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private:
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PMGLView::PMViewType m_glViewType;
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};
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/**
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* Factory class for 3d views
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*/
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class PMGLViewFactory : public PMViewTypeFactory
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{
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public:
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PMGLViewFactory( ) { }
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virtual TQString viewType( ) const { return TQString( "glview" ); }
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virtual TQString description( ) const;
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virtual TQString description( PMViewOptions* ) const;
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virtual TQString iconName( ) const { return TQString( "pmglview" ); }
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virtual PMViewBase* newInstance( TQWidget* parent, PMPart* part ) const
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{
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return new PMGLView( part, PMGLView::PMViewPosX, parent );
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}
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virtual PMViewOptions* newOptionsInstance( ) const;
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virtual PMViewOptionsWidget* newOptionsWidget( TQWidget*, PMViewOptions* );
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};
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/**
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* Configuration widget for the view layout settings dialog
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*/
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class PMGLViewOptionsWidget : public PMViewOptionsWidget
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{
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Q_OBJECT
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public:
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/**
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* Default constructor
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*/
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PMGLViewOptionsWidget( TQWidget* parent, PMViewOptions* o );
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protected slots:
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void slotGLViewTypeChanged( int );
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private:
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PMGLViewOptions* m_pOptions;
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TQComboBox* m_pGLViewType;
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};
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#endif
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