kev/Drawer/Module/GeoSigmaDraw/PanMotionGraphDrawer.cpp

#include "stdafx.h"
#include "PanMotionGraphDrawer.h"
#include "SelectedItemMotionGraphDrawer.h"

void PanMotionGraphDrawer::FirstDraw(CDC * pDC, Gdiplus::Matrix * matrix, int mouseX, int mouseY)
{
	CPoint mousePt(mouseX, mouseY);
	m_rubberLine.SetOriginPoint(mousePt);

	CopyMatrix(matrix);
	if (m_pSIMGDrawer != NULL)
	{
		m_pSIMGDrawer->Translate(m_matrix); //绘制变换之后的图元
		m_pSIMGDrawer->Draw(pDC);
	}
	DrawBoundShape(pDC);
}

void PanMotionGraphDrawer::Draw(CDC * pDC, Gdiplus::Matrix * matrix, int mouseX, int mouseY)
{
	CPoint moustPt(mouseX, mouseY);
	m_rubberLine.Draw(pDC, moustPt);

	if (m_pSIMGDrawer != NULL)
	{
		m_pSIMGDrawer->Translate(m_matrix); //擦除老的图元
		m_pSIMGDrawer->Draw(pDC);
	}
	DrawBoundShape(pDC);

	CopyMatrix(matrix);
	if (m_pSIMGDrawer != NULL)
	{
		m_pSIMGDrawer->Translate(m_matrix); //绘制变换之后的图元
		m_pSIMGDrawer->Draw(pDC);
	}
	DrawBoundShape(pDC);
}

//修复Bug:区域截屏时，平移截图区域。点击截图之后，截图区域矩形没有消失。
//出现这个Bug的原因是，平移选择框时，未擦除外包矩形。
//Tracker的外包矩形和TransformMotiveGraphDrawer的外包矩形绘制的颜色不一样。
//导致Tracker擦除不了此类生成的外包矩形
void PanMotionGraphDrawer::Erease(CDC * pDC)
{
	m_rubberLine.Erease(pDC);
	DrawBoundShape(pDC);
}