Esempio n. 1
0
void CChartLegend::Draw(CDC *pDC)
{
	if (!pDC->GetSafeHdc())
		return;
	if (!m_bIsVisible)
		return;

	int YPos = 2;
	int MaxBitmapWidth = 0;
	bool bDraw = false;

	size_t SeriesCount = m_pParent->GetSeriesCount();
	size_t i=0;
	for (i=0;i<SeriesCount;i++)
	{
		CChartSerie* pSerie = m_pParent->GetSerie(i);
		if ( (pSerie->GetName() == _T("")) || !pSerie->IsVisible() )
			continue;

		bDraw = true;
		CSize BitmapSize = pSerie->GetLegendSize();
		if (BitmapSize.cx > MaxBitmapWidth)
			MaxBitmapWidth = BitmapSize.cx;
	}

	if (!bDraw)
		return;

	CPen SolidPen(PS_SOLID,0,RGB(0,0,0));
	CPen* pOldPen;
	CFont* pOldFont;
	CFont NewFont;
	NewFont.CreatePointFont(m_iFontSize,(LPCTSTR)m_strFontName.c_str(),pDC);

	//Fill back color
	CBrush m_BrushBack;
	m_BrushBack.CreateSolidBrush(m_ObjectColor) ;
	pDC->FillRect(m_ObjectRect,&m_BrushBack);
	COLORREF OldColor = pDC->SetBkColor(m_ObjectColor);

	pOldFont = pDC->SelectObject(&NewFont);
	pOldPen = pDC->SelectObject(&SolidPen);

	//Draw rectangle:
	pDC->MoveTo(m_ObjectRect.left,m_ObjectRect.top);
	pDC->LineTo(m_ObjectRect.right,m_ObjectRect.top);
	pDC->LineTo(m_ObjectRect.right,m_ObjectRect.bottom);
	pDC->LineTo(m_ObjectRect.left,m_ObjectRect.bottom);
	pDC->LineTo(m_ObjectRect.left,m_ObjectRect.top);

	CPoint UpperLeft;
	UpperLeft.x = m_ObjectRect.left;
	UpperLeft.y = m_ObjectRect.top + 4;
	for (i=0;i<SeriesCount;i++)
	{
		CChartSerie* pSerie = m_pParent->GetSerie(i);

		int NewHeight = pSerie->DrawLegend(pDC,UpperLeft,MaxBitmapWidth);
		UpperLeft.y += NewHeight+2;
	}

	pDC->SelectObject(pOldFont);
	DeleteObject(NewFont);
	pDC->SelectObject(pOldPen);
	DeleteObject(SolidPen);
	pDC->SetBkColor(OldColor);
}
Esempio n. 2
0
void CChartLegend::Draw(CDC *pDC)
{
	if (!pDC->GetSafeHdc())
		return;
	if (!m_bIsVisible)
		return;
	if (m_ObjectRect.IsRectEmpty())
		return;

	CPen SolidPen(PS_SOLID,0,RGB(0,0,0));
	CPen* pOldPen;
	CFont* pOldFont;
	CFont NewFont;
	NewFont.CreatePointFont(m_iFontSize,m_strFontName.c_str(),pDC);

	// Draw the shadow
	if (m_bShadow)
	{
		CRect ShadowRect = m_ObjectRect;
		ShadowRect.OffsetRect(m_iShadowDepth,m_iShadowDepth);
		CBrush BrushShadow;
		BrushShadow.CreateSolidBrush(m_ShadowColor) ;
		pDC->FillRect(ShadowRect,&BrushShadow);
	}

	if (!m_bIsTransparent)
	{
		//Fill back color
		CBrush BrushBack;
		BrushBack.CreateSolidBrush(m_ObjectColor) ;
		pDC->FillRect(m_ObjectRect,&BrushBack);
	}

	pOldFont = pDC->SelectObject(&NewFont);
	pOldPen = pDC->SelectObject(&SolidPen);

	//Draw rectangle:
	pDC->MoveTo(m_ObjectRect.left,m_ObjectRect.top);
	pDC->LineTo(m_ObjectRect.right,m_ObjectRect.top);
	pDC->LineTo(m_ObjectRect.right,m_ObjectRect.bottom);
	pDC->LineTo(m_ObjectRect.left,m_ObjectRect.bottom);
	pDC->LineTo(m_ObjectRect.left,m_ObjectRect.top);

	int iPrevMode = pDC->SetBkMode(TRANSPARENT);
	CRect rectBitmap(m_ObjectRect.left+2,m_ObjectRect.top+5,
					 m_ObjectRect.left+2+m_BitmapSize.cx,
					 m_ObjectRect.top+6+m_BitmapSize.cy);
	int SeriesCount = m_pParent->GetSeriesCount();
	for (int i=0;i<SeriesCount;i++)
	{
		CChartSerie* pSerie = m_pParent->GetSerie(i);
		if ( (pSerie->GetName() == _T("")) || !pSerie->IsVisible() )
			continue;

		int MaxHeight = 0;
		CSize TextSize = pDC->GetTextExtent(pSerie->GetName().c_str());
		if (TextSize.cy > m_BitmapSize.cy)
		{
			pDC->ExtTextOut(rectBitmap.right+4,rectBitmap.top,ETO_CLIPPED,NULL,pSerie->GetName().c_str(),NULL);
			CRect rectTemp(rectBitmap);
			int YOffset = TextSize.cy/2 - rectBitmap.Height()/2;
			rectTemp.OffsetRect(0,YOffset);
			pSerie->DrawLegend(pDC,rectTemp);
			MaxHeight = TextSize.cy;
		}
		else
		{
			int YOffset = rectBitmap.CenterPoint().y - TextSize.cy/2;
			pDC->ExtTextOut(rectBitmap.right+4,YOffset,ETO_CLIPPED,NULL,pSerie->GetName().c_str(),NULL);
			MaxHeight = m_BitmapSize.cy;
			pSerie->DrawLegend(pDC,rectBitmap);
		}
		

		if (!m_bIsHorizontal)
			rectBitmap.OffsetRect(0,MaxHeight+2);
		else
			rectBitmap.OffsetRect(m_BitmapSize.cx+4+TextSize.cx+10,0);
	}

	pDC->SetBkMode(iPrevMode);
	pDC->SelectObject(pOldFont);
	DeleteObject(NewFont);
	pDC->SelectObject(pOldPen);
	DeleteObject(SolidPen);
}