mdi doc_view study - yamaumima/hello.github.io GitHub Wiki

void CSquaresView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CView::OnLButtonDown(nFlags, point);

	//
	// Convert click coordinates to MM_LOENGLISH units.
	//
	CClientDC dc (this);
	dc.SetMapMode (MM_LOENGLISH);
	CPoint pos = point;
	dc.DPtoLP (&pos);

	//
	// If a square was clicked, set its color to the current color.
	//
	if (pos.x >= 35 && pos.x <= 315 && pos.y <= -35 && pos.y >= -315) {
		int i = (-pos.y - 35) / 70;
		int j = (pos.x - 35) / 70;
		CSquaresDoc* pDoc = GetDocument ();
		COLORREF clrCurrentColor = pDoc->GetCurrentColor ();
		pDoc->SetSquare (i, j, clrCurrentColor);
	}
}

void CSquaresView::OnDraw(CDC* pDC)
{
	CSquaresDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	//
	// Set the mapping mode to MM_LOENGLISH.
	//
	pDC->SetMapMode (MM_LOENGLISH);

	//
	// Draw the 16 squares.
	//
	for (int i=0; i<4; i++) {
		for (int j=0; j<4; j++) {
			COLORREF color = pDoc->GetSquare (i, j);
			CBrush brush (color);
			int x1 = (j * 70) + 35;
			int y1 = (i * -70) - 35;
			int x2 = x1 + 70;
			int y2 = y1 - 70;
			CRect rect (x1, y1, x2, y2);
			pDC->FillRect (rect, &brush);
		}
	}

	//
	// Then draw the grid lines surrounding them.
	//
	for (int x=35; x<=315; x+=70) {
		pDC->MoveTo (x, -35);
		pDC->LineTo (x, -315);
	}

	for (int y=-35; y>=-315; y-=70) {
		pDC->MoveTo (35, y);
		pDC->LineTo (315, y);
	}
}

BOOL CSquaresDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	for (int i=0; i<4; i++)
		for (int j=0; j<4; j++)
			m_clrGrid[i][j] = RGB (255, 255, 255);

	m_clrCurrentColor = RGB (255, 0, 0);
	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CSquaresDoc serialization

void CSquaresDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		for (int i=0; i<4; i++)
			for (int j=0; j<4; j++)
				ar << m_clrGrid[i][j];
		ar << m_clrCurrentColor;
	}
	else
	{
		for (int i=0; i<4; i++)
			for (int j=0; j<4; j++)
				ar >> m_clrGrid[i][j];
		ar >> m_clrCurrentColor;
	}
}

COLORREF CSquaresDoc::GetCurrentColor()
{
	return m_clrCurrentColor;
}

COLORREF CSquaresDoc::GetSquare(int i, int j)
{
	ASSERT (i >= 0 && i <= 3 && j >= 0 && j <= 3);
	return m_clrGrid[i][j];
}

void CSquaresDoc::SetSquare(int i, int j, COLORREF color)
{
	ASSERT (i >= 0 && i <= 3 && j >= 0 && j <= 3);
	m_clrGrid[i][j] = color;
	SetModifiedFlag (TRUE);
	UpdateAllViews (NULL);
}

void CSquaresDoc::OnColorRed() 
{
	m_clrCurrentColor = RGB (255, 0, 0);	
}

void CSquaresDoc::OnColorYellow() 
{
	m_clrCurrentColor = RGB (255, 255, 0);	
}

void CSquaresDoc::OnColorGreen() 
{
	m_clrCurrentColor = RGB (0, 255, 0);	
}

void CSquaresDoc::OnColorCyan() 
{
	m_clrCurrentColor = RGB (0, 255, 255);	
}

void CSquaresDoc::OnColorBlue() 
{
	m_clrCurrentColor = RGB (0, 0, 255);	
}

void CSquaresDoc::OnColorWhite() 
{
	m_clrCurrentColor = RGB (255, 255, 255);	
}

void CSquaresDoc::OnUpdateColorRed(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (255, 0, 0));	
}

void CSquaresDoc::OnUpdateColorYellow(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (255, 255, 0));	
}

void CSquaresDoc::OnUpdateColorGreen(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (0, 255, 0));	
}

void CSquaresDoc::OnUpdateColorCyan(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (0, 255, 255));	
}

void CSquaresDoc::OnUpdateColorBlue(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (0, 0, 255));	
}

void CSquaresDoc::OnUpdateColorWhite(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio (m_clrCurrentColor == RGB (255, 255, 255));	
}