CSize CChartAxis::GetLargestTick(CDC* pDC)
{
CFont NewFont;
NewFont.CreatePointFont(m_nFontSize,m_strFontName.c_str(),pDC);
CFont* pOldFont = pDC->SelectObject(&NewFont);
CSize MaxSize(0,0);
if (m_MaxValue == m_MinValue)
{
TChartString strLabel = GetTickLabel(m_MinValue);
MaxSize = pDC->GetTextExtent(strLabel.c_str(),strLabel.size());
}
else
{
double TickValue = GetFirstTickValue();
do
{
if (IsLabelOnAxis(TickValue))
{
TChartString strLabel = GetTickLabel(TickValue);
CSize TextSize = pDC->GetTextExtent(strLabel.c_str(),strLabel.size());
if (TextSize.cy > MaxSize.cy)
MaxSize.cy = TextSize.cy;
if (TextSize.cx > MaxSize.cx)
MaxSize.cx = TextSize.cx;
}
} while (GetNextTickValue(TickValue, TickValue));
}
pDC->SelectObject(pOldFont);
NewFont.DeleteObject();
return MaxSize;
}
void CRegisterValueAnalyzerDlg::OnBnClickedTopaxisRadio()
{
CChartAxis* pAxis = m_ChartCtrl.GetTopAxis();
if (pAxis->IsVisible())
((CButton*)GetDlgItem(IDC_AXISVISIBLE_CHECK))->SetCheck(1);
else
((CButton*)GetDlgItem(IDC_AXISVISIBLE_CHECK))->SetCheck(0);
if (pAxis->GetGrid()->IsVisible())
((CButton*)GetDlgItem(IDC_AXISGRIDVIS_CHECK))->SetCheck(1);
else
((CButton*)GetDlgItem(IDC_AXISGRIDVIS_CHECK))->SetCheck(0);
if (pAxis->IsAutomatic())
((CButton*)GetDlgItem(IDC_AXISAUTOMATIC_CHECK))->SetCheck(1);
else
((CButton*)GetDlgItem(IDC_AXISAUTOMATIC_CHECK))->SetCheck(0);
if (pAxis->IsInverted())
((CButton*)GetDlgItem(IDC_AXISINVERTED_CHECK))->SetCheck(1);
else
((CButton*)GetDlgItem(IDC_AXISINVERTED_CHECK))->SetCheck(0);
if (pAxis->ScrollBarEnabled())
((CButton*)GetDlgItem(IDC_AXISSCROLLBAR_CHECK))->SetCheck(1);
else
((CButton*)GetDlgItem(IDC_AXISSCROLLBAR_CHECK))->SetCheck(0);
TChartString AxisLabel = pAxis->GetLabel()->GetText();
GetDlgItem(IDC_AXISLABEL_EDIT)->SetWindowText(AxisLabel.c_str());
double Min=0, Max=0;
CString strBuff;
pAxis->GetMinMax(Min,Max);
strBuff.Format(_T("%.2f"),Min);
GetDlgItem(IDC_AXISMINVAL_EDIT)->SetWindowText(strBuff);
strBuff.Format(_T("%.2f"),Max);
GetDlgItem(IDC_AXISMAXVAL_EDIT)->SetWindowText(strBuff);
}
void CChartCtrl::SaveAsImage(const TChartString& strFilename,
const CRect& rect,
int nBPP,
REFGUID guidFileType)
{
//AFX_MANAGE_STATE(AfxGetStaticModuleState());
CImage chartImage;
CRect chartRect = rect;
if (chartRect.IsRectEmpty())
{
GetClientRect(&chartRect);
}
chartImage.Create(chartRect.Width(), chartRect.Height(), nBPP);
CDC newDC;
newDC.Attach(chartImage.GetDC());
DrawBackground(&newDC, chartRect);
chartRect.DeflateRect(3,3);
DrawChart(&newDC, chartRect);
newDC.Detach();
chartImage.Save(strFilename.c_str(), guidFileType);
chartImage.ReleaseDC();
}
void CChartCtrl::Print(const TChartString& strTitle, CPrintDialog* pPrntDialog)
{
//AFX_MANAGE_STATE(AfxGetStaticModuleState());
CDC dc;
if (pPrntDialog == NULL)
{
CPrintDialog printDlg(FALSE);
if (printDlg.DoModal() != IDOK) // Get printer settings from user
return;
dc.Attach(printDlg.GetPrinterDC()); // attach a printer DC
}
else
dc.Attach(pPrntDialog->GetPrinterDC()); // attach a printer DC
dc.m_bPrinting = TRUE;
DOCINFO di; // Initialise print doc details
memset(&di, 0, sizeof (DOCINFO));
di.cbSize = sizeof (DOCINFO);
di.lpszDocName = strTitle.c_str();
BOOL bPrintingOK = dc.StartDoc(&di); // Begin a new print job
CPrintInfo Info;
Info.m_rectDraw.SetRect(0,0, dc.GetDeviceCaps(HORZRES), dc.GetDeviceCaps(VERTRES));
OnBeginPrinting(&dc, &Info); // Initialise printing
for (UINT page = Info.GetMinPage(); page <= Info.GetMaxPage() && bPrintingOK; page++)
{
dc.StartPage(); // begin new page
Info.m_nCurPage = page;
OnPrint(&dc, &Info); // Print page
bPrintingOK = (dc.EndPage() > 0); // end page
}
OnEndPrinting(&dc, &Info); // Clean up after printing
if (bPrintingOK)
dc.EndDoc(); // end a print job
else
dc.AbortDoc(); // abort job.
dc.Detach(); // detach the printer DC
}
void CChartAxis::DrawTick(CDC* pDC,
double dTickVal)
{
long TickPos = GetTickPos(dTickVal);
long lLabelPos = ValueToScreen(dTickVal);
TChartString strBuffer = GetTickLabel(dTickVal);
CSize TextSize = pDC->GetTextExtent(strBuffer.c_str());
CSize LabelSize = m_pAxisLabel->GetSize(pDC);
bool bLabelOnAxis = IsLabelOnAxis(dTickVal);
bool bTickOnAxis = true;
if (m_bIsHorizontal)
{
if (TickPos<m_StartPos || TickPos>m_EndPos)
bTickOnAxis = false;
if (!m_bIsSecondary)
{
if (bTickOnAxis)
{
pDC->MoveTo(TickPos,m_AxisRect.top+1);
pDC->LineTo(TickPos,m_AxisRect.top+4);
}
if (bLabelOnAxis)
{
pDC->ExtTextOut(lLabelPos-TextSize.cx/2,m_AxisRect.top+5,
ETO_CLIPPED|ETO_OPAQUE,NULL,strBuffer.c_str(),NULL);
}
}
else
{
if (bTickOnAxis)
{
pDC->MoveTo(TickPos,m_AxisRect.bottom-1);
pDC->LineTo(TickPos,m_AxisRect.bottom-4);
}
if (bLabelOnAxis)
{
pDC->ExtTextOut(lLabelPos-TextSize.cx/2,m_AxisRect.bottom-5-TextSize.cy,
ETO_CLIPPED|ETO_OPAQUE,NULL,strBuffer.c_str(),NULL);
}
}
}
else
{
if (TickPos>m_StartPos || TickPos<m_EndPos)
bTickOnAxis = false;
if (!m_bIsSecondary)
{
if (bTickOnAxis)
{
pDC->MoveTo(m_AxisRect.right-1,TickPos);
pDC->LineTo(m_AxisRect.right-4,TickPos);
}
if (bLabelOnAxis)
{
pDC->ExtTextOut(m_AxisRect.left+LabelSize.cx+4,lLabelPos-TextSize.cy/2,
ETO_CLIPPED|ETO_OPAQUE,NULL,strBuffer.c_str(),NULL);
}
}
else
{
if (bTickOnAxis)
{
pDC->MoveTo(m_AxisRect.left+1,TickPos);
pDC->LineTo(m_AxisRect.left+4,TickPos);
}
if (bLabelOnAxis)
{
pDC->ExtTextOut(m_AxisRect.left+6,lLabelPos-TextSize.cy/2,
ETO_CLIPPED|ETO_OPAQUE,NULL,strBuffer.c_str(),NULL);
}
}
}
m_pAxisGrid->AddTick(TickPos);
}
