private void pbPaletteCode_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.FillRectangle(Brushes.White, 0, 0, 1000, 1000);
Font f = new Font("Courier New", 8);
int nLineHeight = (int)f.GetHeight();
int nTabIndent = 15;
int nY = 0;
int nX = 0;
g.DrawString(String.Format("const unsigned short int Palette[] = {{"), f, Brushes.Black, 0, nY);
// Aaaargh! All we want to do here is measure the width of the 3 string segments:
// 0x0000;
// aabbbbc
// so a = width of "0x", b = width of "0000" and c = width = of ";".
//
// MeasureString seems perfect for this:
// PointF ptOrigin = new PointF(0.0f, 0.0f);
// int nWidth0 = (int)g.MeasureString("0x", f, ptOrigin, StringFormat.GenericTypographic).Width;
// int nWidth1 = (int)g.MeasureString("0000", f, ptOrigin, StringFormat.GenericTypographic).Width;
// int nWidth2 = (int)g.MeasureString(",", f, ptOrigin, StringFormat.GenericTypographic).Width;
// except that it doesn't return the correct size.
//
// Fortunately, MeasureCharacterRanges does return the correct size, but it require significantly more
// work to set up.
string strTemplate = "0x0000;"; // We assume that all numbers in the font are the same width
CharacterRange[] charanges =
{
new CharacterRange(0, 2),
new CharacterRange(2, 4),
new CharacterRange(6, 1),
};
RectangleF rLayout = new RectangleF(0.0f, 0.0f, 100.0f, 100.0f);
StringFormat sformat = new StringFormat();
sformat.SetMeasurableCharacterRanges(charanges);
Region[] sregions = new Region[3];
sregions = g.MeasureCharacterRanges(strTemplate, f, rLayout, sformat);
int nWidth0 = (int)sregions[0].GetBounds(g).Width;
int nWidth1 = (int)sregions[1].GetBounds(g).Width;
int nWidth2 = (int)sregions[2].GetBounds(g).Width;
int nWidthTotal = nWidth0 + nWidth1 + nWidth2;
nX = nTabIndent;
nY += nLineHeight;
for (int i = 0; i < 8; i++)
{
if (m_subpalette.CurrentColor == i)
{
g.DrawRectangle(Pens.Red, nX + 1 + nWidth0, nY + 1, nWidth1, nLineHeight);
}
g.DrawString(String.Format("0x{0:x4},", m_subpalette.Encoding(i)), f, Brushes.Black, nX, nY);
nX += nWidthTotal;
}
nY += nLineHeight;
nX = nTabIndent;
for (int i = 0; i < 8; i++)
{
if (m_subpalette.CurrentColor == i + 8)
{
g.DrawRectangle(Pens.Red, nX + 1 + nWidth0, nY + 1, nWidth1, nLineHeight);
}
g.DrawString(String.Format("0x{0:x4},", m_subpalette.Encoding(8 + i)), f, Brushes.Black, nX, nY);
nX += nWidthTotal;
}
nY += nLineHeight;
g.DrawString(String.Format("}};"), f, Brushes.Black, 0, nY);
}
