SUMO - Simulation of Urban MObility
GUIDanielPerspectiveChanger.h
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00001 /****************************************************************************/
00009 // A class that allows to steer the visual output in dependence to
00010 /****************************************************************************/
00011 // SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
00012 // Copyright (C) 2001-2012 DLR (http://www.dlr.de/) and contributors
00013 /****************************************************************************/
00014 //
00015 //   This file is part of SUMO.
00016 //   SUMO is free software: you can redistribute it and/or modify
00017 //   it under the terms of the GNU General Public License as published by
00018 //   the Free Software Foundation, either version 3 of the License, or
00019 //   (at your option) any later version.
00020 //
00021 /****************************************************************************/
00022 #ifndef GUIDanielPerspectiveChanger_h
00023 #define GUIDanielPerspectiveChanger_h
00024 
00025 
00026 // ===========================================================================
00027 // included modules
00028 // ===========================================================================
00029 #ifdef _MSC_VER
00030 #include <windows_config.h>
00031 #else
00032 #include <config.h>
00033 #endif
00034 
00035 #include <utils/geom/Position.h>
00036 #include "GUIPerspectiveChanger.h"
00037 
00038 
00039 // ===========================================================================
00040 // class declarations
00041 // ===========================================================================
00042 class Boundary;
00043 
00044 
00045 // ===========================================================================
00046 // class definitions
00047 // ===========================================================================
00058 class GUIDanielPerspectiveChanger : public GUIPerspectiveChanger {
00059 public:
00060     /* Constructor
00061      * @param[in] callBack The view to be udpated upon changes
00062      */
00063     GUIDanielPerspectiveChanger(GUISUMOAbstractView& callBack, const Boundary& viewPort);
00064 
00066     ~GUIDanielPerspectiveChanger();
00067 
00068     void onLeftBtnPress(void* data);
00069     bool onLeftBtnRelease(void* data);
00070     void onRightBtnPress(void* data);
00071     bool onRightBtnRelease(void* data);
00072     void onMouseWheel(void* data);
00073     void onMouseMove(void* data);
00074 
00076     virtual SUMOReal getRotation() const;
00077 
00079     virtual SUMOReal getXPos() const;
00080 
00082     virtual SUMOReal getYPos() const;
00083 
00085     virtual SUMOReal getZoom() const;
00086 
00088     void centerTo(const Position& pos, SUMOReal radius, bool applyZoom = true);
00089 
00091     void setViewport(SUMOReal zoom, SUMOReal xPos, SUMOReal yPos);
00092 
00093 
00094     /* @brief Adapts the viewport so that a change in canvass size keeps most of the
00095      * view intact (by showing more / less instead of zooming)
00096      * The canvass is clipped/enlarged on the left side of the screen
00097      *
00098      * @param[in] change The horizontal change in canvas size in pixels
00099      */
00100     void changeCanvassLeft(int change);
00101 
00102     /* @brief avoid unwanted flicker
00103      * @param[in] delay The minimum time delay in nanoseconds after
00104      *   mouseDown after which mouse-movements should be interpreted as zoom/drag
00105      */
00106     void setDragDelay(FXTime delay) {
00107         myDragDelay = delay;
00108     }
00109 
00110 private:
00111     /* Performs the view movement
00112      * @param[in] xdiff the change to myViewCenter in pixel
00113      * @param[in] ydiff the change to myViewCenter in pixel
00114      */
00115     void move(int xdiff, int ydiff);
00116 
00118     void zoom(SUMOReal factor);
00119 
00121     void rotate(int diff);
00122 
00123 private:
00125     SUMOReal myOrigWidth, myOrigHeight;
00126 
00128     SUMOReal myRotation;
00129 
00131     int myMouseButtonState;
00132 
00134     bool myMoveOnClick;
00135 
00137     Position myZoomBase;
00138 
00140     FXTime myDragDelay;
00141     FXTime myMouseDownTime;
00142 };
00143 
00144 
00145 #endif
00146 
00147 /****************************************************************************/
00148 
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