gui_geometrydata.cpp

来自「linux下一款GIS程序源码」· C++ 代码 · 共 117 行

/*  gui_geometrydata.cpp  */

#include "gui_geometrydata.h"

#include "KitSrc/ugkglobal.h"
#include "KitSrc/ugk_errhandle.h"
#include "KitSrc/ugk_memopr.h"


/*******************************************
           类GUI_GeometryPoint
*******************************************/

GUI_GeometryPoint::GUI_GeometryPoint()
{
    m_geoNum = 0;
    m_geoPoints = NULL;
}

GUI_GeometryPoint::~GUI_GeometryPoint()
{
    if(m_geoPoints)
    {
	UGK_Free(m_geoPoints);
    }
}

void GUI_GeometryPoint::setGeoNum(int num)
{    
    if(m_geoPoints)
	UGK_Free(m_geoPoints);
    m_geoPoints = (RawPoint *)UGK_Calloc( num,sizeof(RawPoint) );
    // 错误已经在UGK_Calloc()中报告了
    if(m_geoPoints)
	m_geoNum = num;
}

void GUI_GeometryPoint::addPoint(int idx,double x, double y)
{
    if((idx<0)||(idx>=m_geoNum))
    {
	UGKError(ET_Failure,UGKErr_IllegalArg,"GUI_GeometryPoint::addPoint(),Invalid param idx:%d",idx);
	return;
    }
    (m_geoPoints+idx)->x = x;
    (m_geoPoints+idx)->y = y;
    
}

RawPoint* GUI_GeometryPoint::getPoint(int idx)
{
    
    if((idx<0)||(idx>m_geoNum))
    {
	UGKError(ET_Failure,UGKErr_IllegalArg,
		 "GUI_GeometryPoint::getPoint(),Invalid param idx:%d",idx);
	return 0;
    }   
    return m_geoPoints+idx;
}

/********************************************
            类GUI_GeometryLine
********************************************/

GUI_GeometryLine::GUI_GeometryLine()
{
    m_geoNum = 0;
    m_geoLines = NULL;
}

GUI_GeometryLine::~GUI_GeometryLine()
{
    if(m_geoNum>0)
    {
	for(int i=0;i<m_geoNum;i++)
	{
	    RawPoint *tmp =(m_geoLines+i)->Points;
	    UGK_Free(tmp);
	}
	UGK_Free(m_geoLines);
    }
}

void GUI_GeometryLine::setGeoNum(int num)
{
    if(m_geoLines)
	UGK_Free(m_geoLines);
    m_geoLines = (RawLine *)UGK_Calloc(num,sizeof(RawLine));
    // 错误已经在UGK_Calloc()中报告了
    if(m_geoLines)
	m_geoNum = num;
}
// pts分配的内存最终由GUI_GeometryLine来释放
void GUI_GeometryLine::addLine(int idx, RawPoint *pts,int ptNum)
{
    if((idx<0)||(idx>m_geoNum))
    {
	UGKError(ET_Failure,UGKErr_IllegalArg,
		 "GUI_GeometryLine::addLine(),Invalid param idx:%d",idx);
	return;
    }
    (m_geoLines+idx)->numPoint = ptNum;
    (m_geoLines+idx)->Points = pts;
}

RawLine* GUI_GeometryLine::getLine(int idx)
{
    if((idx<0)||(idx>m_geoNum))
    {
	UGKError(ET_Failure,UGKErr_IllegalArg,
		 "GUI_GeometryLine::getLine(),Invalid param idx:%d",idx);
	return 0;
    }
    return (m_geoLines+idx);
}