CGlowingRingPainter::CGlowingRingPainter (CG32bitImage &Dest, int iRadius, int iWidth, const TArray<CG32bitPixel> &ColorRamp, BYTE byOpacity) :
m_Dest(Dest),
m_rcClip(Dest.GetClipRect()),
m_iRadius(iRadius),
m_iWidth(iWidth)
// CGlowingRingPainter constructor
{
int i;
// Pre-multiply the color ramp
m_ColorRamp.InsertEmpty(ColorRamp.GetCount());
m_pColorRamp = &m_ColorRamp;
if (byOpacity == 0xff)
{
for (i = 0; i < m_ColorRamp.GetCount(); i++)
m_ColorRamp[i] = CG32bitPixel::PreMult(ColorRamp[i]);
}
else
{
for (i = 0; i < m_ColorRamp.GetCount(); i++)
{
CG32bitPixel rgbPreMult = CG32bitPixel::PreMult(ColorRamp[i]);
m_ColorRamp[i] = CG32bitPixel(CG32bitPixel::Blend(0, rgbPreMult, byOpacity), CG32bitPixel::BlendAlpha(rgbPreMult.GetAlpha(), byOpacity));
}
}
}
CGlowingRingPainter::CGlowingRingPainter (CG32bitImage &Dest, int iRadius, int iWidth, CG32bitPixel rgbColor) :
m_Dest(Dest),
m_rcClip(Dest.GetClipRect()),
m_iRadius(iRadius),
m_iWidth(iWidth)
// CGlowingRingPainter constructor
{
int i;
if (m_iWidth <= 0)
{
m_pColorRamp = NULL;
return;
}
// Generate a color ramp
int iCenter = m_iWidth / 2;
int iExtra = m_iWidth % 2;
int iOuter = iCenter - 1;
int iInner = iCenter + iExtra;
m_ColorRamp.InsertEmpty(m_iWidth);
// We expect the color ramp to be pre-multiplied
CG32bitPixel rgbPreMult = CG32bitPixel::PreMult(rgbColor);
// Init the center
if (iExtra)
m_ColorRamp[iCenter] = rgbPreMult;
// Edges
for (i = 0; i < iCenter; i++)
{
ASSERT(iOuter >= 0 && iOuter < m_iWidth);
ASSERT(iInner >=0 && iInner < m_iWidth);
BYTE byAlpha = (BYTE)Min((WORD)0xff, (WORD)(rgbPreMult.GetAlpha() * (iCenter - i) / (iCenter + 1)));
BYTE byRed = (BYTE)Min((WORD)0xff, (WORD)(rgbPreMult.GetRed() * (iCenter - i) / (iCenter + 1)));
BYTE byGreen = (BYTE)Min((WORD)0xff, (WORD)(rgbPreMult.GetGreen() * (iCenter - i) / (iCenter + 1)));
BYTE byBlue = (BYTE)Min((WORD)0xff, (WORD)(rgbPreMult.GetBlue() * (iCenter - i) / (iCenter + 1)));
m_ColorRamp[iOuter] = CG32bitPixel(byRed, byGreen, byBlue, byAlpha);
m_ColorRamp[iInner] = CG32bitPixel(byRed, byGreen, byBlue, byAlpha);
iOuter--;
iInner++;
}
m_pColorRamp = &m_ColorRamp;
}
void CGTextArea::PaintText (CG32bitImage &Dest, const RECT &rcRect)
// PaintText
//
// Paint plain text
{
// Paint the text
if (m_pFont)
{
// If we haven't justified the text for this size, do it now
if (m_cxJustifyWidth != RectWidth(rcRect))
{
m_cxJustifyWidth = RectWidth(rcRect);
m_Lines.DeleteAll();
m_pFont->BreakText(m_sText, m_cxJustifyWidth, &m_Lines, CG16bitFont::SmartQuotes);
}
// Compute the rect within which we draw the text
RECT rcText = rcRect;
if (m_bEditable)
{
int iVSpacing = (RectHeight(rcRect) - m_pFont->GetHeight()) / 2;
rcText.left += iVSpacing;
rcText.right -= iVSpacing;
rcText.top += iVSpacing;
rcText.bottom -= iVSpacing;
}
// Clip to text rect
RECT rcOldClip = Dest.GetClipRect();
Dest.SetClipRect(rcText);
// Figure out how many lines fit in the rect
int iMaxLineCount = RectHeight(rcText) / m_pFont->GetHeight();
// If there are too many lines, and we're editable, start at the end
int iStart = 0;
if (m_bEditable && iMaxLineCount < m_Lines.GetCount())
iStart = m_Lines.GetCount() - iMaxLineCount;
// Paint each line
int x = rcText.left;
int y = rcText.top;
for (int i = iStart; i < m_Lines.GetCount(); i++)
{
CString sLine = m_Lines[i];
// Trim the last space in the line, if necessary
char *pPos = sLine.GetASCIIZPointer();
if (sLine.GetLength() > 0 && pPos[sLine.GetLength() - 1] == ' ')
sLine = strTrimWhitespace(sLine);
// Alignment
int xLine;
if (m_dwStyles & alignCenter)
{
int cxWidth = m_pFont->MeasureText(sLine);
xLine = x + (RectWidth(rcText) - cxWidth) / 2;
}
else if (m_dwStyles & alignRight)
{
int cxWidth = m_pFont->MeasureText(sLine);
xLine = x + (RectWidth(rcRect) - cxWidth);
}
else
xLine = x;
// Paint
if (HasEffects())
m_pFont->DrawTextEffect(Dest, xLine, y, m_rgbColor, sLine, GetEffectCount(), GetEffects());
else
Dest.DrawText(xLine, y, *m_pFont, m_rgbColor, sLine);
// Next
y += m_pFont->GetHeight() + m_cyLineSpacing;
if (y >= rcText.bottom)
break;
}
// Paint the cursor
if (m_bEditable && m_iCursorLine >= iStart)
{
int cxPos = (m_iCursorLine < m_Lines.GetCount() ? m_pFont->MeasureText(CString(m_Lines[m_iCursorLine].GetASCIIZPointer(), m_iCursorPos, true)) : 0);
int y = rcText.top + (m_iCursorLine - iStart) * (m_pFont->GetHeight() + m_cyLineSpacing);
int x = rcText.left;
if (m_dwStyles & alignCenter)
{
int cxWidth = (m_iCursorLine < m_Lines.GetCount() ? m_pFont->MeasureText(m_Lines[m_iCursorLine]) : 0);
x += ((RectWidth(rcText) - cxWidth) / 2) + cxPos;
}
else if (m_dwStyles & alignRight)
{
int cxWidth = (m_iCursorLine < m_Lines.GetCount() ? m_pFont->MeasureText(m_Lines[m_iCursorLine]) : 0);
x += (RectWidth(rcText) - cxWidth) + cxPos;
}
else
x += cxPos;
if (((m_iTick / 30) % 2) > 0)
{
Dest.Fill(x, y, 2, m_pFont->GetHeight(), RGB_CURSOR);
}
}
// Restore clip
Dest.SetClipRect(rcOldClip);
}
}