📄 mydrawview.cpp
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// MyDrawView.cpp : implementation of the CMyDrawView class
//
#include "stdafx.h"
#include "MyDraw.h"
#include "MyDrawDoc.h"
#include "MyDrawView.h"
#include "Ellipse.h"
#include "Line.h"
#include "LineProperties.h"
#include "EllipseProperties.h"
#include "Rectangle.h"
#include "Text.h"
#include "TextProperties.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CMyDrawView
IMPLEMENT_DYNCREATE(CMyDrawView, CView)
BEGIN_MESSAGE_MAP(CMyDrawView, CView)
//{{AFX_MSG_MAP(CMyDrawView)
ON_WM_LBUTTONDOWN()
ON_WM_SETCURSOR()
ON_WM_LBUTTONDBLCLK()
ON_COMMAND(ID_BUTTON_LINE, OnButtonLine)
ON_COMMAND(ID_BUTTON_ELLIPSE, OnButtonEllipse)
ON_COMMAND(ID_BUTTON_RECTANGLE, OnButtonRectangle)
ON_COMMAND(ID_BUTTON_ARC, OnButtonArc)
ON_WM_KEYUP()
ON_COMMAND(ID_BUTTON_TEXT, OnButtonText)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDrawView construction/destruction
CMyDrawView::CMyDrawView()
{
// TODO: add construction code here
m_tracker.m_nStyle=CRectTracker::resizeInside|
CRectTracker::dottedLine;
m_tracker.m_rect.SetRect(0,0,0,0);
m_tracker.m_nHandleSize=8;
}
CMyDrawView::~CMyDrawView()
{
}
BOOL CMyDrawView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CMyDrawView drawing
void CMyDrawView::OnDraw(CDC* pDC)
{
CMyDrawDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here
POSITION pos = m_ObjectList.GetHeadPosition();
CEllipse* pEllipse = NULL;
CLine* pLine=NULL;
CRectangle* pRectangle=NULL;
CArc* pArc=NULL;
CText* pText=NULL;
CObject* pObject=NULL;
while(pos != NULL)
{
pObject=(CObject*)m_ObjectList.GetNext(pos);
if (pObject->IsKindOf(RUNTIME_CLASS(CEllipse)))
{
pEllipse = (CEllipse*)pObject;
if(pEllipse != NULL)
{
if (pEllipse->bIsSelected)
{
pEllipse->startX=m_tracker.m_rect.left;
pEllipse->startY=m_tracker.m_rect.top;
pEllipse->endX=m_tracker.m_rect.right;
pEllipse->endY=m_tracker.m_rect.bottom;
}
DrawEllipse(pDC,pEllipse);
if (pEllipse->bIsSelected)
{
m_tracker.Draw(pDC);
}
}
}
else if (pObject->IsKindOf(RUNTIME_CLASS(CLine)))
{
pLine = (CLine*)pObject;
if(pLine != NULL)
{
if (pLine->bIsSelected)
{
pLine->startX=m_tracker.m_rect.left;
pLine->startY=m_tracker.m_rect.top;
pLine->endX=m_tracker.m_rect.right;
pLine->endY=m_tracker.m_rect.bottom;
}
DrawLine(pDC,pLine);
if (pLine->bIsSelected)
{
m_tracker.Draw(pDC);
}
}
}
else if (pObject->IsKindOf(RUNTIME_CLASS(CArc)))
{
pArc = (CArc*)pObject;
if(pArc != NULL)
{
if (pArc->bIsSelected)
{
pArc->startX=m_tracker.m_rect.left;
pArc->startY=m_tracker.m_rect.top;
pArc->endX=m_tracker.m_rect.right;
pArc->endY=m_tracker.m_rect.bottom;
}
DrawArc(pDC,pArc);
if (pArc->bIsSelected)
{
m_tracker.Draw(pDC);
}
}
}
else if (pObject->IsKindOf(RUNTIME_CLASS(CText)))
{
pText = (CText*)pObject;
if(pText != NULL)
{
if (pText->bIsSelected)
{
pText->startX=m_tracker.m_rect.left;
pText->startY=m_tracker.m_rect.top;
pText->endX=m_tracker.m_rect.right;
pText->endY=m_tracker.m_rect.bottom;
}
DrawMyText(pDC,pText);
if (pText->bIsSelected)
{
m_tracker.Draw(pDC);
}
}
}
else if (pObject->IsKindOf(RUNTIME_CLASS(CRectangle)))
{
pRectangle = (CRectangle*)pObject;
if(pRectangle != NULL)
{
if (pRectangle->bIsSelected)
{
pRectangle->startX=m_tracker.m_rect.left;
pRectangle->startY=m_tracker.m_rect.top;
pRectangle->endX=m_tracker.m_rect.right;
pRectangle->endY=m_tracker.m_rect.bottom;
}
DrawRectangle(pDC,pRectangle);
if (pRectangle->bIsSelected)
{
m_tracker.Draw(pDC);
}
}
}
}
}
/////////////////////////////////////////////////////////////////////////////
// CMyDrawView diagnostics
#ifdef _DEBUG
void CMyDrawView::AssertValid() const
{
CView::AssertValid();
}
void CMyDrawView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CMyDrawDoc* CMyDrawView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDrawDoc)));
return (CMyDrawDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CMyDrawView message handlers
void CMyDrawView::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
CEllipse* pEllipse = NULL;
CLine* pLine=NULL;
CRectangle* pRectangle=NULL;
CArc* pArc=NULL;
CText* pText=NULL;
POSITION pos = m_ObjectList.GetHeadPosition();
CObject* pHitItem;
while(pos != NULL)
{
pHitItem=(CObject*)m_ObjectList.GetNext(pos);
if (pHitItem->IsKindOf(RUNTIME_CLASS(CEllipse)))
{
pEllipse = (CEllipse*)pHitItem;
if(pEllipse != NULL)
{
CRect rc;
rc.left=pEllipse->startX;
rc.top=pEllipse->startY;
rc.right=pEllipse->endX;
rc.bottom=pEllipse->endY;
if (rc.PtInRect(point))
{
ClearSelection();
pEllipse->bIsSelected=true;
m_tracker.m_rect.SetRect(pEllipse->startX,pEllipse->startY,
pEllipse->endX,pEllipse->endY);
}
else
{
pEllipse->bIsSelected=false;
}
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CLine)))
{
pLine = (CLine*)pHitItem;
if(pLine != NULL)
{
CRect rc(pLine->startX,pLine->startY,pLine->endX,pLine->endY);
if (rc.PtInRect(point))
{
ClearSelection();
pLine->bIsSelected=true;
m_tracker.m_rect.SetRect(pLine->startX,pLine->startY,
pLine->endX,pLine->endY);
}
else
{
pLine->bIsSelected=false;
}
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CArc)))
{
pArc = (CArc*)pHitItem;
if(pArc != NULL)
{
CRect rc(pArc->startX,pArc->startY,pArc->endX,pArc->endY);
if (rc.PtInRect(point))
{
ClearSelection();
pArc->bIsSelected=true;
m_tracker.m_rect.SetRect(pArc->startX,pArc->startY,
pArc->endX,pArc->endY);
}
else
{
pArc->bIsSelected=false;
}
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CText)))
{
pText = (CText*)pHitItem;
if(pText != NULL)
{
CRect rc(pText->startX,pText->startY,pText->endX,pText->endY);
if (rc.PtInRect(point))
{
ClearSelection();
pText->bIsSelected=true;
m_tracker.m_rect.SetRect(pText->startX,pText->startY,
pText->endX,pText->endY);
}
else
{
pText->bIsSelected=false;
}
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CRectangle)))
{
pRectangle = (CRectangle*)pHitItem;
if(pRectangle != NULL)
{
CRect rc;
rc.left=pRectangle->startX;
rc.top=pRectangle->startY;
rc.right=pRectangle->endX;
rc.bottom=pRectangle->endY;
if (rc.PtInRect(point))
{
ClearSelection();
pRectangle->bIsSelected=true;
m_tracker.m_rect.SetRect(pRectangle->startX,
pRectangle->startY,pRectangle->endX,pRectangle->endY);
}
else
{
pRectangle->bIsSelected=false;
}
}
}
}
m_tracker.Track(this,point);//显示调节框
Invalidate();
}
BOOL CMyDrawView::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
// TODO: Add your message handler code here and/or call default
//鼠标移动到调节框范围内时，改变鼠标指针形状，指示可以拖动或改变绘图元素
if(m_tracker.SetCursor(pWnd,nHitTest))
return true;
return CView::OnSetCursor(pWnd, nHitTest, message);
}
void CMyDrawView::ClearSelection()
{
CObject* pHitItem=NULL;
POSITION pos = m_ObjectList.GetHeadPosition();
CEllipse* pEllipse = NULL;
CLine* pLine=NULL;
CRectangle* pRectangle=NULL;
CArc* pArc=NULL;
CText* pText=NULL;
while(pos != NULL)
{
pHitItem=(CObject*)m_ObjectList.GetNext(pos);
if (pHitItem->IsKindOf(RUNTIME_CLASS(CEllipse)))
{
pEllipse = (CEllipse*)pHitItem;
if(pEllipse != NULL)
{
pEllipse->bIsSelected=false;
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CLine)))
{
pLine = (CLine*)pHitItem;
if(pLine != NULL)
{
pLine->bIsSelected=false;
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CRectangle)))
{
pRectangle = (CRectangle*)pHitItem;
if(pRectangle != NULL)
{
pRectangle->bIsSelected=false;
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CArc)))
{
pArc = (CArc*)pHitItem;
if(pArc != NULL)
{
pArc->bIsSelected=false;
}
}
else if (pHitItem->IsKindOf(RUNTIME_CLASS(CText)))
{
pText = (CText*)pHitItem;
if(pText != NULL)
{
pText->bIsSelected=false;
}
}
}
return;
}
void CMyDrawView::DrawLine(CDC *pDC, CLine *pLine)
{
CPen cMyPen;
CPen* pOldPen;
cMyPen.CreatePenIndirect(&pLine->LinePen);
pOldPen=pDC->SelectObject(&cMyPen);
pDC->MoveTo(pLine->startX,pLine->startY);
pDC->LineTo(pLine->endX,pLine->endY);
pDC->SelectObject(pOldPen);
}
void CMyDrawView::DrawArc(CDC *pDC, CArc *pArc)
{
CPen cMyPen;
CPen* pOldPen;
cMyPen.CreatePenIndirect(&pArc->LinePen);
pOldPen=pDC->SelectObject(&cMyPen);
if(pArc->Direction)
{
pDC->Arc(pArc->startX,pArc->startY,pArc->endX,pArc->endY,
pArc->startX,pArc->startY,pArc->endX,pArc->endY);
}
else
{
pDC->Arc(pArc->endX,pArc->endY,pArc->startX,pArc->startY,
pArc->endX,pArc->endY,
pArc->startX,pArc->startY);
}
pDC->SelectObject(pOldPen);
}
void CMyDrawView::DrawMyText(CDC *pDC, CText *pText)
{
CFont cMyFont;
CFont* pOldFont;
cMyFont.CreateFontIndirect(&pText->MyFont);
pOldFont=pDC->SelectObject(&cMyFont);
pDC->SetBkMode(pText->BkMode);
pDC->SetTextColor(pText->MyColor);
pDC->DrawText(pText->MyText,CRect(pText->startX,pText->startY,
pText->endX,pText->endY),DT_LEFT);
pDC->SelectObject(pOldFont);
}
void CMyDrawView::DrawEllipse(CDC *pDC, CEllipse *pEllipse)
{
CPen cMyPen;
CPen* pOldPen;
cMyPen.CreatePenIndirect(&pEllipse->LinePen);
pOldPen=pDC->SelectObject(&cMyPen);
CBrush cMyBrush;
CBrush* pOldBrush;
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