ColourValue StringTools::ConvertToColourValue(const String& ToConvert)
{
CountedPtr<StringVector> Digits = Split(ToConvert);
if(4 == Digits->size())
{
return ColourValue(ConvertToReal(Digits->at(0)),ConvertToReal(Digits->at(1)),ConvertToReal(Digits->at(2)),ConvertToReal(Digits->at(3)));
}else{
MEZZ_EXCEPTION(Exception::PARAMETERS_EXCEPTION,"String does not contain 4 digits when attempting to convert.");
}
}
void CProgressCtrlX::DrawClippedText(const CDrawInfo& info, const CRect& rcClip, CString& sText, const CPoint& ptWndOrg)
{
CDC *pDC = info.pDC;
CRgn rgn;
CRect rc = ConvertToReal(info, rcClip);
rc.OffsetRect(-ptWndOrg);
rgn.CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
pDC->SelectClipRgn(&rgn);
pDC->TextOut (0, 0, sText);
rgn.DeleteObject();
}
void CProgressCtrlX::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: Add your message handler code here
CDrawInfo info;
GetClientRect(&info.rcClient);
// retrieve current position and range
info.nCurPos = GetPos();
GetRange(info.nLower, info.nUpper);
// Draw to memory DC
CMemDC memDC(&dc);
info.pDC = &memDC;
// fill background
if(m_pbrBk)
memDC.FillRect(&info.rcClient, m_pbrBk);
else
memDC.FillSolidRect(&info.rcClient, m_clrBk);
// apply borders
info.rcClient.DeflateRect(m_rcBorders);
// if current pos is out of range return
if (info.nCurPos < info.nLower || info.nCurPos > info.nUpper)
return;
info.dwStyle = GetStyle();
BOOL fVert = info.dwStyle&PBS_VERTICAL;
BOOL fSnake = info.dwStyle&PBS_SNAKE;
BOOL fRubberBar = info.dwStyle&PBS_RUBBER_BAR;
// calculate visible gradient width
CRect rcBar(0,0,0,0);
CRect rcMax(0,0,0,0);
rcMax.right = fVert ? info.rcClient.Height() : info.rcClient.Width();
rcBar.right = (int)((float)(info.nCurPos-info.nLower) * rcMax.right / ((info.nUpper-info.nLower == 0) ? 1 : info.nUpper-info.nLower));
if(fSnake)
rcBar.left = (int)((float)(m_nTail-info.nLower) * rcMax.right / ((info.nUpper-info.nLower == 0) ? 1 : info.nUpper-info.nLower));
// draw bar
if(m_pbrBar)
memDC.FillRect(&ConvertToReal(info, rcBar), m_pbrBar);
else
DrawMultiGradient(info, fRubberBar ? rcBar : rcMax, rcBar);
// Draw text
DrawText(info, rcMax, rcBar);
// Do not call CProgressCtrl::OnPaint() for painting messages
}
void CProgressCtrlX::DrawText(const CDrawInfo& info, const CRect &rcMax, const CRect &rcBar)
{
if(!(info.dwStyle&PBS_TEXTMASK))
return;
BOOL fVert = info.dwStyle&PBS_VERTICAL;
CDC *pDC = info.pDC;
int nValue = 0;
CString sFormat;
GetWindowText(sFormat);
switch(info.dwStyle&PBS_TEXTMASK)
{
case PBS_SHOW_PERCENT:
if(sFormat.IsEmpty())
sFormat = _T("%d%%");
// retrieve current position and range
nValue = (int)((float)(info.nCurPos-info.nLower) * 100 / ((info.nUpper-info.nLower == 0) ? 1 : info.nUpper-info.nLower));
break;
case PBS_SHOW_POSITION:
if(sFormat.IsEmpty())
sFormat = _T("%d");
// retrieve current position
nValue = info.nCurPos;
break;
}
if (sFormat.IsEmpty())
return;
CFont* pFont = GetFont();
CSelFont sf(pDC, pFont);
CSelTextColor tc(pDC, m_clrTextOnBar);
CSelBkMode bm(pDC, TRANSPARENT);
CSelTextAlign ta(pDC, TA_BOTTOM|TA_CENTER);
CPoint ptOrg = pDC->GetWindowOrg();
CString sText;
sText.Format(sFormat, nValue);
LONG grad = 0;
if(pFont)
{
LOGFONT lf;
pFont->GetLogFont(&lf);
grad = lf.lfEscapement/10;
}
int x = 0, y = 0, dx = 0, dy = 0;
CSize sizText = pDC->GetTextExtent(sText);
if(grad == 0) { x = sizText.cx; y = sizText.cy; dx = 0; dy = sizText.cy;}
else if(grad == 90) { x = sizText.cy; y = sizText.cx; dx = sizText.cy; dy = 0;}
else if(grad == 180) { x = sizText.cx; y = sizText.cy; dx = 0; dy = -sizText.cy;}
else if(grad == 270) { x = sizText.cy; y = sizText.cx; dx = -sizText.cy; dy = 0;}
else ASSERT(0); // angle not supported
CPoint pt = pDC->GetViewportOrg();
if(info.dwStyle&PBS_TIED_TEXT)
{
CRect rcFill(ConvertToReal(info, rcBar));
if((fVert ? y : x) <= rcBar.Width())
{
pDC->SetViewportOrg(rcFill.left + (rcFill.Width() + dx)/2,
rcFill.top + (rcFill.Height() + dy)/2);
DrawClippedText(info, rcBar, sText, ptOrg);
}
}
else
{
pDC->SetViewportOrg(info.rcClient.left + (info.rcClient.Width() + dx)/2,
info.rcClient.top + (info.rcClient.Height() + dy)/2);
if(m_clrTextOnBar == m_clrTextOnBk)
// if the same color for bar and background draw text once
DrawClippedText(info, rcMax, sText, ptOrg);
else
{
// else, draw clipped parts of text
// draw text on gradient
if(rcBar.left != rcBar.right)
DrawClippedText(info, rcBar, sText, ptOrg);
// draw text out of gradient
if(rcMax.right > rcBar.right)
{
tc.Select(m_clrTextOnBk);
CRect rc(rcMax);
rc.left = rcBar.right;
DrawClippedText(info, rc, sText, ptOrg);
}
if(rcMax.left < rcBar.left)
{
tc.Select(m_clrTextOnBk);
CRect rc(rcMax);
rc.right = rcBar.left;
DrawClippedText(info, rc, sText, ptOrg);
}
}
}
pDC->SetViewportOrg(pt);
}
void CProgressCtrlX::DrawGradient(const CDrawInfo& info, const CRect &rcGrad, const CRect &rcClip, COLORREF clrStart, COLORREF clrEnd)
{
// Split colors to RGB chanels, find chanel with maximum difference
// between the start and end colors. This distance will determine
// number of steps of gradient
int r = (GetRValue(clrEnd) - GetRValue(clrStart));
int g = (GetGValue(clrEnd) - GetGValue(clrStart));
int b = (GetBValue(clrEnd) - GetBValue(clrStart));
int nSteps = max(abs(r), max(abs(g), abs(b)));
// if number of pixels in gradient less than number of steps -
// use it as numberof steps
int nPixels = rcGrad.Width();
nSteps = min(nPixels, nSteps);
if(nSteps == 0) nSteps = 1;
float rStep = (float)r/nSteps;
float gStep = (float)g/nSteps;
float bStep = (float)b/nSteps;
r = GetRValue(clrStart);
g = GetGValue(clrStart);
b = GetBValue(clrStart);
BOOL fLowColor = info.pDC->GetDeviceCaps(RASTERCAPS) & RC_PALETTE;
if(!fLowColor && nSteps > 1)
if(info.pDC->GetDeviceCaps(BITSPIXEL)*info.pDC->GetDeviceCaps(PLANES) < 8)
nSteps = 1; // for 16 colors no gradient
float nWidthPerStep = (float)rcGrad.Width() / nSteps;
CRect rcFill(rcGrad);
CBrush br;
// Start filling
for (int i = 0; i < nSteps; i++)
{
rcFill.left = rcGrad.left + (int)(nWidthPerStep * i);
rcFill.right = rcGrad.left + (int)(nWidthPerStep * (i+1));
if(i == nSteps-1) //last step (because of problems with float)
rcFill.right = rcGrad.right;
if(rcFill.right < rcClip.left)
continue; // skip - band before cliping rect
// clip it
if(rcFill.left < rcClip.left)
rcFill.left = rcClip.left;
if(rcFill.right > rcClip.right)
rcFill.right = rcClip.right;
COLORREF clrFill = RGB(r + (int)(i * rStep),
g + (int)(i * gStep),
b + (int)(i * bStep));
if(fLowColor)
{
br.CreateSolidBrush(clrFill);
// CDC::FillSolidRect is faster, but it does not handle 8-bit color depth
info.pDC->FillRect(&ConvertToReal(info, rcFill), &br);
br.DeleteObject();
}
else
info.pDC->FillSolidRect(&ConvertToReal(info, rcFill), clrFill);
if(rcFill.right >= rcClip.right)
break; // stop filling if we reach current position
}
}
