lwq6231view.cpp

简单画图

void CLWQ6231View::OnColorPink() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_PINK;	
}

void CLWQ6231View::OnColorRed() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_RED;	
}

void CLWQ6231View::OnColorWhite() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_WHITE;	
}

void CLWQ6231View::OnColorYellow() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_YELLOW;
}

void CLWQ6231View::OnUpdateEditCut(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(virtualline);
}

void CLWQ6231View::OnUpdateEditPaste(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_bClip);
}

void CLWQ6231View::OnUpdateEditCopy(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(virtualline);
}

void CLWQ6231View::Selected_Copy()
{	
	if (showgrid)
		Grid();
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	GetWindowRect(rect);
	long  width = m_pSelect->GetWidth();
	long  height = m_pSelect->GetHeight();
	long x = m_pSelect->GetX();
	long y = m_pSelect->GetY();
	memDC.CreateCompatibleDC(&dc);
	dc.OffsetViewportOrg(x, y);
	m_pSelect->map_select.CreateCompatibleBitmap(&dc, width, height);
	CBitmap* pOldBitmap = memDC.SelectObject(&m_pSelect->map_select);
	memDC.BitBlt(0, 0, width, height, &dc, 0, 0, SRCCOPY);

	memDC.SelectObject(pOldBitmap);
	if(showgrid)
		Grid();	

				

}

void CLWQ6231View::Back_Copy()
{
	if (showgrid)
		Grid();
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	GetWindowRect(rect);
	CBitmap *pOldBitmap;
	memDC.CreateCompatibleDC(&dc);
	m_pSelect->backmap.CreateCompatibleBitmap(&dc, rect.Width(),rect.Height());
	pOldBitmap = memDC.SelectObject(&m_pSelect->backmap);
	memDC.BitBlt(0, 0, rect.Width(),rect.Height(), &dc, 0, 0, SRCCOPY);
	
	memDC.SelectObject(pOldBitmap);
	if(showgrid)
		Grid();	

}

void CLWQ6231View::Back_CutCopy()
{
	if (showgrid)
		Grid();
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	GetWindowRect(rect);
	CBitmap *pOldBitmap;

	long  width = m_pSelect->GetWidth();
	long  height = m_pSelect->GetHeight();
	long x = m_pSelect->GetX();
	long y = m_pSelect->GetY();

	memDC.CreateCompatibleDC(&dc);
	m_pSelect->backmap.CreateCompatibleBitmap(&dc, rect.Width(),rect.Height());
	pOldBitmap = memDC.SelectObject(&m_pSelect->backmap);
	memDC.BitBlt(0, 0, rect.Width(),rect.Height(), &dc, 0, 0, SRCCOPY);
 	memDC.BitBlt(x, y, width, height, &dc, 0, 0, WHITENESS);

		
	memDC.SelectObject(pOldBitmap);
	if(showgrid)
		Grid();	


}

void CLWQ6231View::OnUpdateSelect(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_nMouseMode==IDT_SELECT);// TODO: Add your command update UI handler code here
	
}

void CLWQ6231View::SaveInStack()
{
		if(m_pSelect)
	{
		if (virtualline)
		{
			m_pSelect->Clear(GetDC());
			
		}
		
	}
	
	
	if (showgrid)
		Grid();
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	CBitmap     bitmap,b1;
//	b1=bitmap;
	HBITMAP      bm;
	GetWindowRect(rect);
	CBitmap *pOldBitmap;
	memDC.CreateCompatibleDC(&dc);
	bitmap.CreateCompatibleBitmap(&dc, rect.Width(),rect.Height());
	pOldBitmap = memDC.SelectObject(&bitmap);
	memDC.BitBlt(0, 0, rect.Width(),rect.Height(), &dc, 0, 0, SRCCOPY);
	

	bm=(HBITMAP)bitmap.GetSafeHandle();
//	bitmap.Attach();
	m_pStack->Add(bm);
	memDC.SelectObject(pOldBitmap);
	bitmap.Detach();
	if(showgrid)
		Grid();	
		if(m_pSelect)
	{
		if (virtualline)
		{
			m_pSelect->Clear(GetDC());
			
		}
		
	}


}

void CLWQ6231View::OnEditRedo() 
{	
//释放选中的对象，销去虚线框
	if(m_pSelect)
	{
		if (virtualline)
			m_pSelect->Clear(GetDC());
		delete m_pSelect;
		m_pSelect=NULL;
	}
	virtualline=false;
//////////////////////////	
	if (showgrid)
		Grid();

	CDC  dc;
	CDC * pDC = GetDC();
	if(!dc.CreateCompatibleDC(pDC))
		return;
	BITMAP  bm;
	CBitmap cb1;
	cb1.Attach(m_pStack->Redo());
	cb1.GetBitmap(&bm);
	dc.SelectObject(&cb1);
	pDC->BitBlt(0,0, bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);
	cb1.Detach();
}

void CLWQ6231View::OnEditUndo() 
{
//释放选中的对象，销去虚线框
	if(m_pSelect)
	{
		if (virtualline)
			m_pSelect->Clear(GetDC());
		delete m_pSelect;
		m_pSelect=NULL;
	}
	virtualline=false;
///////////////////////////////////

	if (showgrid)
		Grid();
	CDC  dc;
	CDC * pDC = GetDC();
	if(!dc.CreateCompatibleDC(pDC))
		return;
	BITMAP  bm;
	CBitmap cb1;
	cb1.Attach(m_pStack->Undo());
	cb1.GetBitmap(&bm);
	dc.SelectObject(&cb1);
	pDC->BitBlt(0,0, bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);
	cb1.Detach();

}

void CLWQ6231View::OnUpdateEditUndo(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_pStack->CanUndo());
}

void CLWQ6231View::OnUpdateEditRedo(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_pStack->CanRedo());
}

void CLWQ6231View::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	// Do not call CView::OnPaint() for painting messages
	if(m_bFirstSave)
	{
		SaveInStack();

		m_bFirstSave = false;
	}
	
	CDC*  pDC = GetDC();
	if( m_pStack->CanUndo() )
	{
		CDC  dc;
		if(!dc.CreateCompatibleDC(pDC))
			return;
		BITMAP  bm;
		CBitmap cb;
		cb.Attach(m_pStack->Pop());
		cb.GetBitmap(&bm);
		dc.SelectObject(&cb);
		pDC->BitBlt(0,0, bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);
		cb.Detach();
	}
//如果以前选中并有虚线，则再现窗口时出现虚线
	if (m_pSelect&&virtualline)
		m_pSelect->Clear(pDC);
/////////////////////////////////////////
	if(showgrid) Grid();

}

void CLWQ6231View::OnCurve() 
{
	// TODO: Add your command handler code here
	m_nMouseMode = IDT_CURVE;
	::SetClassLong(GetSafeHwnd(), GCL_HCURSOR, (LONG)m_hcurArrow);//修改缺省光标
}

void CLWQ6231View::OnPoly() 
{
	// TODO: Add your command handler code here
	m_nMouseMode = IDT_POLY;
	::SetClassLong(GetSafeHwnd(), GCL_HCURSOR, (LONG)m_hcurCross);//修改缺省光标
}


void CLWQ6231View::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CLWQ6231Doc* pDoc = GetDocument();
	CDC* pDC = GetDC();//获得DC

	if(m_nMouseMode == IDT_POLY && m_usrCurrentObject)
	{
		m_usrCurrentObject->EndPoint(pDC);
		
		SaveInStack();
		
		::ClipCursor(NULL);//释放鼠标锁定
		delete m_usrCurrentObject;
		m_bDrawing = false;
		m_usrCurrentObject = NULL;
	}
	ReleaseDC(pDC);//释放DC资源
	
	CView::OnLButtonDblClk(nFlags, point);
}

void CLWQ6231View::OnWidthNormal() 
{
	// TODO: Add your command handler code here
	m_iPenWidth = WIDTH_NORMAL;
}

void CLWQ6231View::OnWidthThin()
{
	// TODO: Add your command handler code here
	m_iPenWidth = WIDTH_THIN;
}

void CLWQ6231View::OnWidthWide() 
{
	// TODO: Add your command handler code here
	m_iPenWidth = WIDTH_WIDE;
}

void CLWQ6231View::OnFillFalse() 
{
	// TODO: Add your command handler code here
	m_bFill = false;
}

void CLWQ6231View::OnFillTrue() 
{
	// TODO: Add your command handler code here
	m_bFill = true;
}

void CLWQ6231View::OnUpdateWidthNormal(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_iPenWidth == WIDTH_NORMAL);	
}

void CLWQ6231View::OnUpdateWidthThin(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_iPenWidth == WIDTH_THIN);	
}

void CLWQ6231View::OnUpdateWidthWide(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_iPenWidth == WIDTH_WIDE);
}

void CLWQ6231View::OnUpdateFillFalse(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_bFill == false);	
}

void CLWQ6231View::OnUpdateFillTrue(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_bFill == true);
}

void CLWQ6231View::OnExamineColor() 
{
	// TODO: Add your command handler code here
	
}

void CLWQ6231View::OnExamineTool() 
{
	// TODO: Add your command handler code here
	
}

void CLWQ6231View::Grid()
{
//	m_pStack->New();
	CDC *pdc = GetDC();
	CRect		rect;
	GetWindowRect(rect);
	int w=rect.Width();
	int h=rect.Height();

	COLORREF XorColor = pdc->GetBkColor()^RGB(128,128,128) ;
	CPen pen(PS_SOLID, 1, XorColor), *oldpen;
	int oldmode = pdc->GetROP2();
	oldpen = pdc->SelectObject(&pen);
	pdc->SetROP2(R2_XORPEN);

	for(int i=0;i<12;i++)
	{
		pdc->MoveTo(0,(i*w)/12);
		pdc->LineTo(w,i*w/12);
    	pdc->MoveTo(w*i/12,0);
		pdc->LineTo(w*i/12,h);

	}

	//以下恢复DC
	pdc->SetROP2(oldmode);
	pdc->SelectObject(oldpen);
	pen.DeleteObject();//释放笔资源
	







}

void CLWQ6231View::Ongrid() 
{
	// TODO: Add your command handler code here
	Grid();
	showgrid=showgrid?false:true;


}

void CLWQ6231View::OnUpdateColorRed(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetCheck(m_nCurrentColor == UD_RED);		
}