gui_manager.h

linux下一款GIS程序源码

/*  gui_manager.h  */
/*
   图形界面管理器,负责管理图形界面的视野 各个图层的纵向的位置
*/
#ifndef GUI_MANAGER_H
#define GUI_MANAGER_H

#include "gui_layer.h"

class GUI_Manager
{
public:
    GUI_Manager();
    virtual ~GUI_Manager();
    
    
    int  GetLayerNum(){return m_NumLayer;};
    GUI_Layer   *GetLayerRef(int );
    GUI_Layer   *GetLayerRef(const char *);
    GUI_Layer   *GetLayerRefByZpos(int);
    void AddLayer(GUI_Layer *);
    void RemoveLayer(int );
    
    void setCenter(double cx, double cy);
    void getCenter(double &cx, double &cy);
    void setView(double vx, double vy);
    void getView(double &vx, double &vy);
    
    int  getLayerNum(){return m_NumLayer;};
    void setPaintRect( int top,int left,int pw,int ph);
    void PrintInfo();
    void InitAllLayers();
    
    void Draw(QPaintDevice *);
    
private:
    double m_BoundLeft;
    double m_BoundRight;
    double m_BoundTop;
    double m_BoundBottom;
    double m_XCenter;
    double m_YCenter;
    double m_Xview;
    double m_Yview;
    double m_DistperPixel;
    
    int  m_NumLayer;
    int  m_AllocLayer;
    GUI_Layer  **m_Layers;
    
    int   m_paintTop ;  //绘图区域上边沿
    int   m_paintLeft ;  //绘图区域左边沿
    int   m_paintWidth;  //绘图区域宽度
    int   m_paintHeight;  //绘图区域高度
    
    void UpdateBound(double minX,double maxX,double minY,double maxY);
    void ComputerDistperPixel();
};

#endif