lwq6231view.cpp

简单画图

void CLWQ6231View::OnInitialUpdate() 
{
	CView::OnInitialUpdate();
	
	// TODO: Add your specialized code here and/or call the base class
	CSize size(1280, 1024);//设置绘图区范围为：1280*1024
//	SetScrollSizes(MM_TEXT, size);
}

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

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

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

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

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

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

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

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

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

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

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

void CLWQ6231View::OnFont() 
{
	// TODO: Add your command handler code here
	CDC*  pDC = GetDC();
	LOGFONT  m_lFont;
	COLORREF  m_cTextColor;
	CFont  myFont;
	CFont* pOldFont;

	CFontDialog  FontDlg;
	FontDlg.m_cf.lpLogFont = &m_lFont;
	FontDlg.m_cf.rgbColors = m_cTextColor;
	FontDlg.m_cf.Flags != CF_INITTOLOGFONTSTRUCT;

	if( FontDlg.DoModal() == IDOK )
	{
		FontDlg.GetCurrentFont(&m_lFont);
		m_cTextColor = FontDlg.GetColor();
	}

	CString str;
	CTextDlg   TextDlg;
//	CRect rect(TextDlg.m_ctrEdit.GetClientRect());

	if( TextDlg.DoModal() == IDOK )
	{
		CRect rect(TextDlg.m_iPosX, TextDlg.m_iPosY,
			TextDlg.m_iPosX + 100, TextDlg.m_iPosY + 100);
		str = TextDlg.m_sText;
		myFont.CreateFontIndirect(&m_lFont);
		pOldFont = pDC->SelectObject(&myFont);
		pDC->SetTextColor(m_cTextColor);
		pDC->DrawText(str, rect, 0);
		pDC->SelectObject(pOldFont);

		SaveInStack();

	}
}

void CLWQ6231View::OnFileNew() 
{
	// TODO: Add your command handler code here
//	m_strName = name;

	m_usrCurrentObject = NULL;
//	m_pStack->Clear();

	m_bDrawing=false;
	m_nMouseMode = IDT_LINE;
	m_usrCurrentObject = NULL;
	m_nCurrentColor = UD_RED;
	m_iPenWidth = WIDTH_THIN;
	m_bFill = false;
	m_pSelect = NULL;              //没有选中区域
	m_bClip = false;               //剪贴扳为空 
	virtualline=false;
	delete m_pStack;
	m_pStack =new Stack(3);        //栈的大小
	m_bFirstSave = true;           //可以保存空白屏幕
	showgrid = false;

	CDC* pDC = GetDC();
	CRect rect;
	GetClientRect(&rect);
	pDC->BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, WHITENESS);
	OnPaint();


}

void CLWQ6231View::OnUpdateDelete(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_nMouseMode == IDT_ARROW && m_usrCurrentObject != NULL);
	//当选中图元时，才可使用删除功能
}

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

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

	if (showgrid) 
		Grid();
	if( !m_pSelect )
		return;
	m_bClip = true;
	CBitmap 	bitmap;
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		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+1, y+1);
	bitmap.CreateCompatibleBitmap(&dc, width-1, height-1);
	
	CBitmap* pOldBitmap = memDC.SelectObject(&bitmap);
	memDC.BitBlt(0, 0, width, height, &dc, 0, 0, SRCCOPY);

	OpenClipboard();
	EmptyClipboard();
	SetClipboardData(CF_BITMAP, bitmap.GetSafeHandle());
	CloseClipboard();

	//m_pSelect->copied=true;

	memDC.SelectObject(pOldBitmap);
	bitmap.Detach();
	virtualline=true;
	if (showgrid) Grid();

}

void CLWQ6231View::OnEditCut()
{
	if (showgrid) Grid();
	if( !m_pSelect )
		return;
	CDC *pdc = GetDC();
	m_bClip = true;
	CBitmap 	bitmap;
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	GetWindowRect(rect);

	m_pSelect->Clear(pdc);
	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);
	bitmap.CreateCompatibleBitmap(&dc, width, height);
		
	CBitmap* pOldBitmap = memDC.SelectObject(&bitmap);
	memDC.BitBlt(0, 0, width, height, &dc, 0, 0, SRCCOPY);

	OpenClipboard();
	EmptyClipboard();
	SetClipboardData (CF_BITMAP, bitmap.GetSafeHandle() );
	CloseClipboard();

    dc.OffsetViewportOrg(-x, -y);
	
	if (!(m_pSelect->copied))//如果剪切的还没复制过就变白
	{
		pdc->BitBlt(x, y, width+1, height+1, &dc, 0, 0, WHITENESS);

		Back_Copy();
		memDC.SelectObject(pOldBitmap);
		bitmap.Detach();
		//bit1=bitmap;
	
	}
	else	//如果剪切的已经复制，不变白
	{		
		CDC* pDC = GetDC();
		CDC  dc;
		CClientDC pdc(this);
		if(!dc.CreateCompatibleDC(pDC))
			return;
		BITMAP  bm;	
		m_pSelect->backmap.GetBitmap(&bm);
		CBitmap *pOldBitmap=dc.SelectObject(&m_pSelect->backmap);
		pdc.BitBlt(0,0,bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);
		dc.SelectObject(&pOldBitmap);
	}
	m_pSelect->Set(pdc,-width,-height,width,height);
	if (showgrid) 
		Grid();
	virtualline=false;
	SaveInStack();

}

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

	CDC  dc;
	CDC * pDC = GetDC();

	if (virtualline)
		if (m_pSelect) 
			m_pSelect->Clear(pDC);
	
	

	m_pSelect = new CDrawSelect(m_nCurrentColor);

	
	Back_Copy();//保存背景图
	

	if(!dc.CreateCompatibleDC(pDC))
		return;
	BITMAP  bm;
	HBITMAP  hBitmap;

	OpenClipboard();
	hBitmap = (HBITMAP)GetClipboardData(CF_BITMAP);

    m_pSelect->map_select.Detach();

	m_pSelect->map_select.Attach(hBitmap);
	m_pSelect->map_select.GetBitmap(&bm);
	dc.SelectObject(&m_pSelect->map_select);
	pDC->BitBlt(0, 0, bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);
	CloseClipboard();

	m_pSelect->Set(pDC,0,0,bm.bmWidth,bm.bmHeight);
	m_bDrawing=false;
	m_pSelect->copied=true;


	
	virtualline=true;


}

void CLWQ6231View::OnFileSave() 
{
	// TODO: Add your command handler code here
	CClientDC	dc(this);
	CDC 		memDC;
	CRect		rect;
	GetClientRect(rect);

	memDC.CreateCompatibleDC(&dc);
	CBitmap bm;
	int Width = rect.Width();
	int Height = rect.Height();
	bm.CreateCompatibleBitmap(&dc, Width, Height);
	CBitmap*  pOld = memDC.SelectObject(&bm);
	memDC.BitBlt(0, 0, Width, Height, &dc, 0, 0, SRCCOPY);
	memDC.SelectObject(pOld);
	BITMAP  btm;
	bm.GetBitmap(&btm);
	DWORD  size = btm.bmWidthBytes * btm.bmHeight;
	LPSTR lpData = (LPSTR)GlobalAllocPtr(GPTR, size);
	BITMAPFILEHEADER   bfh;
	/////////////////////////////////////////////
	BITMAPINFOHEADER  bih;
	bih.biBitCount = btm.bmBitsPixel;
	bih.biClrImportant = 0;
	bih.biClrUsed = 0;
	bih.biCompression = 0;
	bih.biHeight = btm.bmHeight;
	bih.biPlanes = 1;
	bih.biSize = sizeof(BITMAPINFOHEADER);
	bih.biSizeImage = size;
	bih.biWidth = btm.bmWidth;
	bih.biXPelsPerMeter = 0;
	bih.biYPelsPerMeter = 0;
	GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS);
	//bm.GetBitmapBits(size,lpData);//此函数在处理5-5-5模式的16位色下会出现颜色混乱
	bfh.bfReserved1 = bfh.bfReserved2 = 0;
	bfh.bfType = ((WORD)('M'<< 8)|'B');
	bfh.bfSize = 54 + size;
	bfh.bfOffBits = 54;

	CFileDialog dlg(false,_T("BMP"),_T("*.bmp"),OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,_T("*.bmp|*.bmp|*.*|*.*|"));
	if (dlg.DoModal()!=IDOK)
		return;

	CFile  bf;

	CString ss=dlg.GetPathName();
	if(bf.Open(ss, CFile::modeCreate | CFile::modeWrite))
	{
		bf.WriteHuge(&bfh, sizeof(BITMAPFILEHEADER));
		bf.WriteHuge(&bih, sizeof(BITMAPINFOHEADER));
		bf.WriteHuge(lpData, size);
		bf.Close();
		AfxMessageBox("保存成功");
	}
	GlobalFreePtr(lpData);
	
}

void CLWQ6231View::OnFileOpen() 
{
	// TODO: Add your command handler code here
	CDC  dc;
	CDC * pDC = GetDC();
	if(!dc.CreateCompatibleDC(pDC))
		return;
	CBitmap b;
	BITMAP  bm;
	CString  path;
	CFileDialog dlg(true,_T("BMP"),_T("*.bmp"),OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,_T("*.bmp|*.bmp|*.*|*.*|"));
	if (dlg.DoModal()==IDOK)
	{
		path =dlg.GetPathName();
	}
	else 
		return;
	HBITMAP  hbmp = (HBITMAP)LoadImage(NULL, _T(path), IMAGE_BITMAP,
		0, 0, LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE);
	b.Attach(hbmp);

	b.GetBitmap(&bm);
	dc.SelectObject(&b);
	pDC->BitBlt(0, 0, bm.bmWidth, bm.bmHeight, &dc, 0, 0, SRCCOPY);

}

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

void CLWQ6231View::OnColorBlue() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_BLUE;
	if(m_usrCurrentObject && m_usrCurrentObject->m_bSelected)
	{//更新当前选择图元的显示
		m_usrCurrentObject->SetPenColor(m_nCurrentColor);
		Invalidate();
	}
}

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

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

void CLWQ6231View::OnColorGreen() 
{
	// TODO: Add your command handler code here
	m_nCurrentColor = UD_GREEN;
	if(m_usrCurrentObject && m_usrCurrentObject->m_bSelected)
	{//更新当前选择图元的显示
		m_usrCurrentObject->SetPenColor(m_nCurrentColor);
		Invalidate();
	}	
}