VOID CColorPage::OnPaint()
{
CRect rcBack, rcGrid;
CPaintDC dc(this);
CPaintDC dcBack(&BackColor());
CPaintDC dcGrid(&GridColor());
rcBack.CopyRect(&(dcBack.m_ps.rcPaint));
rcGrid.CopyRect(&(dcGrid.m_ps.rcPaint));
dcBack.FillSolidRect(&rcBack, m_lBackColor);
dcGrid.FillSolidRect(&rcGrid, m_lGridColor);
CPropertyPage::OnPaint();
}
void COScopeCtrl::RecreateGrid()
{
// There is a lot of drawing going on here - particularly in terms of
// drawing the grid. Don't panic, this is all being drawn (only once)
// to a bitmap. The result is then BitBlt'd to the control whenever needed.
bRecreateGrid = false;
if (m_rectClient.GetWidth() == 0 || m_rectClient.GetHeight() == 0) {
return;
}
wxMemoryDC dcGrid(m_bmapGrid);
wxPen solidPen = *(wxThePenList->FindOrCreatePen(m_gridColour, 1, wxSOLID));
wxString strTemp;
// fill the grid background
dcGrid.SetBrush(brushBack);
dcGrid.SetPen(*wxTRANSPARENT_PEN);
dcGrid.DrawRectangle(m_rectClient);
// adjust the plot rectangle dimensions
// assume 6 pixels per character (this may need to be adjusted)
m_rectPlot.x = m_rectClient.GetLeft() + 6*7+4;
// draw the plot rectangle
dcGrid.SetPen(solidPen);
dcGrid.DrawRectangle(m_rectPlot.x - 1, m_rectPlot.y - 1, m_rectPlot.GetWidth() + 2, m_rectPlot.GetHeight() + 2);
dcGrid.SetPen(wxNullPen);
// create some fonts (horizontal and vertical)
wxFont axisFont(10, wxSWISS, wxNORMAL, wxNORMAL, false);
dcGrid.SetFont(axisFont);
// y max
dcGrid.SetTextForeground(m_gridColour);
if( strYMax.IsEmpty() ) {
strTemp = wxString::Format(wxT("%.*f"), nYDecimals, pdsTrends[ 0 ].fUpperLimit);
} else {
strTemp = strYMax;
}
wxCoord sizX,sizY;
dcGrid.GetTextExtent(strTemp,&sizX,&sizY);
dcGrid.DrawText(strTemp,m_rectPlot.GetLeft()-4-sizX,m_rectPlot.GetTop()-7);
// y min
if( strYMin.IsEmpty() ) {
strTemp = wxString::Format(wxT("%.*f"), nYDecimals, pdsTrends[ 0 ].fLowerLimit) ;
} else {
strTemp = strYMin;
}
dcGrid.GetTextExtent(strTemp,&sizX,&sizY);
dcGrid.DrawText(strTemp,m_rectPlot.GetLeft()-4-sizX, m_rectPlot.GetBottom());
// x units
strTemp = CastSecondsToHM((m_rectPlot.GetWidth()/nShiftPixels) * (int)floor(sLastPeriod+0.5));
// floor(x + 0.5) is a way of doing round(x) that works with gcc < 3 ...
if (bStopped) {
strXUnits = CFormat( _("Disabled [%s]") ) % strTemp;
} else {
strXUnits = strTemp;
}
dcGrid.GetTextExtent(strXUnits,&sizX,&sizY);
dcGrid.DrawText(strXUnits,(m_rectPlot.GetLeft() + m_rectPlot.GetRight())/2-sizX/2,m_rectPlot.GetBottom()+4);
// y units
if (!strYUnits.IsEmpty()) {
dcGrid.GetTextExtent(strYUnits,&sizX,&sizY);
dcGrid.DrawText(strYUnits, m_rectPlot.GetLeft()-4-sizX, (m_rectPlot.GetTop()+m_rectPlot.GetBottom())/2-sizY/2);
}
// no more drawing to this bitmap is needed until the setting are changed
if (bRecreateGraph) {
RecreateGraph(false);
}
// finally, force the plot area to redraw
Refresh(false);
}
