void drawLine(Context gr, Rectangle cb, int i)
{
CodeLine cl = PrintedLines[i];
int lineIndex = buffer.IndexOf(cl);
double y = cb.Y + fe.Height * i, x = cb.X;
//Draw line numbering
Color mgFg = Color.Gray;
Color mgBg = Color.White;
if (PrintLineNumbers)
{
Rectangle mgR = new Rectangle((int)x, (int)y, leftMargin - leftMarginGap, (int)Math.Ceiling(fe.Height));
if (cl.exception != null)
{
mgBg = Color.Red;
if (buffer.CurrentLine == lineIndex)
{
mgFg = Color.White;
}
else
{
mgFg = Color.LightGray;
}
}
else if (buffer.CurrentLine == lineIndex)
{
mgFg = Color.Black;
}
string strLN = (lineIndex + 1).ToString();
gr.SetSourceColor(mgBg);
gr.Rectangle(mgR);
gr.Fill();
gr.SetSourceColor(mgFg);
gr.MoveTo(cb.X + (int)(gr.TextExtents(buffer.LineCount.ToString()).Width - gr.TextExtents(strLN).Width), y + fe.Ascent);
gr.ShowText(strLN);
gr.Fill();
}
//draw folding
if (foldingEnabled)
{
if (cl.IsFoldable)
{
if (cl.SyntacticNode.StartLine != cl.SyntacticNode.EndLine)
{
gr.SetSourceColor(Color.Black);
Rectangle rFld = new Rectangle(cb.X + leftMargin - leftMarginGap - foldSize, (int)(y + fe.Height / 2.0 - foldSize / 2.0), foldSize, foldSize);
gr.Rectangle(rFld, 1.0);
if (cl.IsFolded)
{
gr.MoveTo(rFld.Center.X + 0.5, rFld.Y + 2);
gr.LineTo(rFld.Center.X + 0.5, rFld.Bottom - 2);
}
gr.MoveTo(rFld.Left + 2, rFld.Center.Y + 0.5);
gr.LineTo(rFld.Right - 2, rFld.Center.Y + 0.5);
gr.Stroke();
}
}
}
gr.SetSourceColor(Foreground);
x += leftMargin;
if (cl.Tokens == null)
{
drawRawCodeLine(gr, x, y, i, lineIndex);
}
else
{
drawParsedCodeLine(gr, x, y, i, lineIndex);
}
}
void drawLine(Context gr, Rectangle cb, int i)
{
CodeLine cl = PrintedLines[i];
int lineIndex = buffer.IndexOf(cl);
double y = cb.Y + (fe.Ascent + fe.Descent) * i, x = cb.X;
//Draw line numbering
Color mgFg = Colors.Jet;
Color mgBg = Colors.Grey;
if (PrintLineNumbers)
{
Rectangle mgR = new Rectangle((int)x, (int)y, leftMargin - leftMarginGap, (int)Math.Ceiling((fe.Ascent + fe.Descent)));
if (cl.exception != null)
{
mgBg = Colors.Red;
if (buffer.CurrentLine == lineIndex)
{
mgFg = Colors.White;
}
else
{
mgFg = Colors.LightGrey;
}
}
else if (buffer.CurrentLine == lineIndex && HasFocus)
{
mgFg = Colors.Black;
mgBg = Colors.DarkGrey;
}
string strLN = (lineIndex + 1).ToString();
gr.SetSourceColor(mgBg);
gr.Rectangle(mgR);
gr.Fill();
gr.SetSourceColor(mgFg);
gr.MoveTo(cb.X + (int)(gr.TextExtents(buffer.LineCount.ToString()).Width - gr.TextExtents(strLN).Width), y + fe.Ascent);
gr.ShowText(strLN);
gr.Fill();
}
//draw folding
if (foldingEnabled)
{
Rectangle rFld = new Rectangle(cb.X + leftMargin - leftMarginGap - foldMargin,
(int)(y + (fe.Ascent + fe.Descent) / 2.0 - foldSize / 2.0), foldSize, foldSize);
gr.SetSourceColor(Colors.Black);
gr.LineWidth = 1.0;
int level = 0;
bool closingNode = false;
if (currentNode != null)
{
if (cl == currentNode.EndLine)
{
currentNode = currentNode.Parent;
closingNode = true;
}
if (currentNode != null)
{
level = currentNode.Level - 1;
}
}
/*for (int l = 0; l < level; l++) {
* gr.MoveTo (rFld.Center.X + 0.5, y);
* gr.LineTo (rFld.Center.X + 0.5, y + fe.Ascent + fe.Descent);
* rFld.Left += foldHSpace;
* }*/
if (level > 0)
{
gr.MoveTo(rFld.Center.X + 0.5, y);
gr.LineTo(rFld.Center.X + 0.5, y + fe.Ascent + fe.Descent);
}
if (closingNode)
{
gr.MoveTo(rFld.Center.X + 0.5, y);
gr.LineTo(rFld.Center.X + 0.5, y + fe.Ascent / 2 + 0.5);
gr.LineTo(rFld.Center.X + 0.5 + foldSize / 2, y + fe.Ascent / 2 + 0.5);
closingNode = false;
}
gr.SetDash(new double[] { 1.5 }, 0.0);
gr.SetSourceColor(Colors.Grey);
gr.Stroke();
gr.SetDash(new double[] {}, 0.0);
if (cl.IsFoldable)
{
gr.Rectangle(rFld);
gr.SetSourceColor(Colors.White);
gr.Fill();
gr.SetSourceColor(Colors.Black);
gr.Rectangle(rFld, 1.0);
if (cl.IsFolded)
{
gr.MoveTo(rFld.Center.X + 0.5, rFld.Y + 2);
gr.LineTo(rFld.Center.X + 0.5, rFld.Bottom - 2);
}
else
{
currentNode = cl.SyntacticNode;
}
gr.MoveTo(rFld.Left + 2, rFld.Center.Y + 0.5);
gr.LineTo(rFld.Right - 2, rFld.Center.Y + 0.5);
gr.Stroke();
}
}
gr.SetSourceColor(Foreground);
x += leftMargin;
if (cl.Tokens == null)
{
drawRawCodeLine(gr, x, y, i, lineIndex);
}
else
{
drawParsedCodeLine(gr, x, y, i, lineIndex);
}
}
