Method OnDraw

Src/LocationView.cpp:346–519

* @brief Draw maps of files. * * Draws maps of differences in files. Difference list is walked and * every difference is drawn with same colors as in editview. * @note We MUST use doubles when calculating coords to avoid rounding * to integers. Rounding causes miscalculation of coords. * @sa CLocationView::DrawRect() */

 * @sa CLocationView::DrawRect()
 */
void CLocationView::OnDraw(CDC* pDC)
{
	CMergeDoc *pDoc = GetDocument();
	int nGroup = pDoc->GetActiveMergeView()->m_nThisGroup;
	if (pDoc->GetView(nGroup, 0) == nullptr)
		return;

	if (!pDoc->GetView(nGroup, 0)->IsInitialized()) return;

	bool bEditedAfterRescan = false;
	int nPaneNotModified = -1;
	for (int pane = 0; pane < pDoc->m_nBuffers; pane++)
	{
		if (!pDoc->IsEditedAfterRescan(pane))
			nPaneNotModified = pane;
		else
			bEditedAfterRescan = true;
	}

	CRect rc;
	GetClientRect(&rc);

	CMyMemDC dc(pDC, &rc);

	CEColor cr[3] = {CLR_NONE, CLR_NONE, CLR_NONE};
	CEColor crt = CLR_NONE; // Text color
	bool bwh = false;

	m_movedLines.RemoveAll();

	CalculateBars();
	DrawBackground(&dc);

	COLORREF clrFace    = GetBackgroundColor();
	COLORREF clrShadow  = GetSysColor(COLOR_BTNSHADOW);
	COLORREF clrShadow2 = CEColor::GetIntermediateColor(clrFace, clrShadow, 0.9f);
	COLORREF clrShadow3 = CEColor::GetIntermediateColor(clrFace, clrShadow2, 0.5f);
	COLORREF clrShadow4 = CEColor::GetIntermediateColor(clrFace, clrShadow3, 0.5f);
	COLORREF clrShadow5 = CEColor::GetIntermediateColor(clrFace, clrShadow4, 0.5f);

	// Draw bar outlines
	CPen* oldObj = (CPen*)dc.SelectStockObject(NULL_PEN);
	CBrush brush(pDoc->GetView(nGroup, 0)->GetColor(COLORINDEX_WHITESPACE));
	CBrush* oldBrush = (CBrush*)dc.SelectObject(&brush);
	for (int pane = 0; pane < pDoc->m_nBuffers; pane++)
	{
		CBrush *pOldBrush = nullptr;
		if (pDoc->IsEditedAfterRescan(pane))
			pOldBrush = (CBrush *)dc.SelectStockObject(HOLLOW_BRUSH);
		dc.Rectangle(m_bar[pane]);
		if (pOldBrush != nullptr)
			dc.SelectObject(pOldBrush);

		CRect rect = m_bar[pane];
		rect.InflateRect(1, 1);
		dc.Draw3dRect(rect, clrShadow5, clrShadow4);
		rect.InflateRect(-1, -1);
		dc.Draw3dRect(rect, clrShadow3, clrShadow2);