📄 painter_gdi.cs
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if (this.Control.ContainsFocus)
GFX.SelectionBuffer.Clear(Control.SelectionBackColor);
else
GFX.SelectionBuffer.Clear(Control.InactiveSelectionBackColor);
RenderSelectedText(RowIndex);
}
}
if (this.Control.ContainsFocus || Control.View.Action ==
XTextAction.xtDragText)
{
RenderCaret(RowIndex, RowPos * Control.View.RowHeight + this.yOffset);
}
RenderSelection(RowIndex, true);
RenderMargin(RowIndex);
if (Control.Document.Folding)
RenderExpansion(RowIndex);
RowPaintEventArgs e = new RowPaintEventArgs();
Rectangle rec = new Rectangle(0, 0, this.Control.Width,
Control.View.RowHeight);
e.Graphics = Graphics.FromHdc(bbuff.hDC);
e.Bounds = rec;
e.Row = null;
if (RowIndex >= 0 && RowIndex < Control.Document.Count)
e.Row = Control.Document[RowIndex];
this.Control._CodeEditor.OnRenderRow(e);
e.Graphics.Dispose();
bbuff.Flush();
bbuff.RenderToControl(0, RowPos * Control.View.RowHeight + this.yOffset)
;
//GFX.SelectionBuffer.RenderToControl (0,RowPos*Control.View.RowHeight+this.yOffset);
if (found)
bg.Dispose();
}
private void SetFont(bool Bold, bool Italic, bool Underline, GDISurface
bbuff)
{
if (Bold)
if (Italic)
if (Underline)
bbuff.Font = GFX.FontBoldItalicUnderline;
else
bbuff.Font = GFX.FontBoldItalic;
else if (Underline)
bbuff.Font = GFX.FontBoldUnderline;
else
bbuff.Font = GFX.FontBold;
else if (Italic)
if (Underline)
bbuff.Font = GFX.FontItalicUnderline;
else
bbuff.Font = GFX.FontItalic;
else if (Underline)
bbuff.Font = GFX.FontUnderline;
else
bbuff.Font = GFX.FontNormal;
}
private void SetStringFont(bool Bold, bool Italic, bool Underline)
{
GDISurface bbuff = GFX.StringBuffer;
if (Bold)
if (Italic)
if (Underline)
bbuff.Font = GFX.FontBoldItalicUnderline;
else
bbuff.Font = GFX.FontBoldItalic;
else if (Underline)
bbuff.Font = GFX.FontBoldUnderline;
else
bbuff.Font = GFX.FontBold;
else if (Italic)
if (Underline)
bbuff.Font = GFX.FontItalicUnderline;
else
bbuff.Font = GFX.FontItalic;
else if (Underline)
bbuff.Font = GFX.FontUnderline;
else
bbuff.Font = GFX.FontNormal;
}
private void RenderCollapsedSelectedText(int RowIndex, int xPos)
{
GDISurface bbuff = GFX.SelectionBuffer;
bbuff.Font = GFX.FontBold;
bbuff.FontTransparent = true;
if (this.Control.ContainsFocus)
bbuff.TextForeColor = Control.SelectionForeColor;
else
bbuff.TextForeColor = Control.InactiveSelectionForeColor;
//bbuff.TextForeColor =Color.DarkBlue;
Row r = Control.Document[RowIndex];
string str = "";
str = r.CollapsedText;
xPos++;
int taborig = -Control.View.FirstVisibleColumn * Control.View.CharWidth
+ Control.View.TextMargin;
GFX.StringBuffer.Font = GFX.FontBold;
int wdh = GFX.StringBuffer.DrawTabbedString(str, xPos + 1, 0, taborig,
Control.PixelTabSize).Width;
if (this.Control.ContainsFocus)
{
bbuff.FillRect(Control.SelectionForeColor, xPos + 0, 0, wdh + 2,
Control.View.RowHeight);
bbuff.FillRect(Control.SelectionBackColor, xPos + 1, 1, wdh,
Control.View.RowHeight - 2);
}
else
{
bbuff.FillRect(Control.InactiveSelectionForeColor, xPos + 0, 0, wdh + 2,
Control.View.RowHeight);
bbuff.FillRect(Control.InactiveSelectionBackColor, xPos + 1, 1, wdh,
Control.View.RowHeight - 2);
}
wdh = bbuff.DrawTabbedString(str, xPos + 1, 0, taborig,
Control.PixelTabSize).Width;
//this can crash if document not fully parsed , on error resume next
if (r.Expansion_StartSegment.EndRow != null)
{
if (r.Expansion_StartSegment.EndRow.RowState ==
RowState.SegmentParsed)
this.Control.Document.Parser.ParseLine
(r.Expansion_StartSegment.EndRow.Index, true);
Word last = r.Expansion_StartSegment.EndWord;
xPos += Control.View.FirstVisibleColumn * Control.View.CharWidth;
r.Expansion_StartSegment.EndRow.Expansion_PixelStart = xPos + wdh -
Control.View.TextMargin + 2;
r.Expansion_PixelEnd = xPos - 1;
RenderSelectedText(Control.Document.IndexOf
(r.Expansion_StartSegment.EndRow),
r.Expansion_StartSegment.EndRow.Expansion_PixelStart, last);
}
}
private void RenderCollapsedText(int RowIndex, int xPos)
{
GDISurface bbuff = GFX.BackBuffer;
bbuff.Font = GFX.FontBold;
bbuff.FontTransparent = true;
bbuff.TextForeColor = Control.OutlineColor;
//bbuff.TextForeColor =Color.DarkBlue;
Row r = Control.Document[RowIndex];
string str = "";
str = r.CollapsedText;
xPos++;
int taborig = -Control.View.FirstVisibleColumn * Control.View.CharWidth
+ Control.View.TextMargin;
GFX.StringBuffer.Font = GFX.FontBold;
int wdh = GFX.StringBuffer.DrawTabbedString(str, xPos + 1, 0, taborig,
Control.PixelTabSize).Width;
bbuff.FillRect(GFX.OutlineBrush, xPos + 0, 0, wdh + 2,
Control.View.RowHeight);
bbuff.FillRect(GFX.BackgroundBrush, xPos + 1, 1, wdh,
Control.View.RowHeight - 2);
wdh = bbuff.DrawTabbedString(str, xPos + 1, 0, taborig,
Control.PixelTabSize).Width;
//this can crash if document not fully parsed , on error resume next
if (r.Expansion_StartSegment.EndRow != null)
{
if (r.Expansion_StartSegment.EndRow.RowState ==
RowState.SegmentParsed)
this.Control.Document.Parser.ParseLine
(r.Expansion_StartSegment.EndRow.Index, true);
Word last = r.Expansion_StartSegment.EndWord;
xPos += Control.View.FirstVisibleColumn * Control.View.CharWidth;
r.Expansion_StartSegment.EndRow.Expansion_PixelStart = xPos + wdh -
Control.View.TextMargin + 2;
r.Expansion_PixelEnd = xPos - 1;
RenderText(Control.Document.IndexOf(r.Expansion_StartSegment.EndRow),
r.Expansion_StartSegment.EndRow.Expansion_PixelStart, last)
;
}
}
private void RenderText(int RowIndex)
{
RenderText(RowIndex, 0, null);
}
private void RenderText(int RowIndex, int XOffset, Word StartWord)
{
GDISurface bbuff = GFX.BackBuffer;
bbuff.Font = GFX.FontNormal;
bbuff.FontTransparent = true;
bool DrawBreakpoint = false;
if (RowIndex <= Control.Document.Count - 1)
{
bbuff.TextForeColor = Color.Black;
Row xtr = Control.Document[RowIndex];
//if (xtr.StartSegment != null)
// bbuff.DrawTabbedString (xtr.StartSegment.GetHashCode ().ToString (System.Globalization.CultureInfo.InvariantCulture),100,0,0,0);
//bbuff.TextForeColor = Color.Black;
//bbuff.DrawTabbedString (xtr.Text,(int)(Control.View.TextMargin -Control.View.ClientAreaStart),1,-Control.View.FirstVisibleColumn*Control.View.CharWidth+Control.View.TextMargin,Control.PixelTabSize);
int xpos = Control.View.TextMargin - Control.View.ClientAreaStart +
XOffset;
int wdh = 0;
int taborig = -Control.View.FirstVisibleColumn *
Control.View.CharWidth + Control.View.TextMargin;
bool ws = Control.ShowWhitespace;
bool StartDraw = false;
if (StartWord == null)
StartDraw = true;
xtr.Expansion_StartChar = 0;
xtr.Expansion_EndChar = 0;
bool HasExpansion = false;
WordCollection wordCollection = xtr.FormattedWords;
Word w = null;
for (int i = 0; i < wordCollection.Count;i++)
{
w = wordCollection[i];
if (StartDraw)
{
if (w.Segment == xtr.Expansion_StartSegment &&
xtr.Expansion_StartSegment != null)
if (xtr.Expansion_StartSegment.Expanded == false)
{
RenderCollapsedText(RowIndex, xpos);
HasExpansion = true;
break;
}
if ((w.Type == WordType.xtSpace || w.Type == WordType.xtTab) &&
!DrawBreakpoint && Control.ShowTabGuides)
{
int xtab = xpos - (Control.View.TextMargin -
Control.View.ClientAreaStart + XOffset);
if (((double)xtab / (double)Control.PixelTabSize) == (xtab /
Control.PixelTabSize))
bbuff.FillRect(Control.TabGuideColor, xpos, 0, 1,
this.Control.View.RowHeight);
}
if (w.Type == WordType.xtWord || ws == false)
{
if (w.Style != null)
{
SetFont(w.Style.Bold, w.Style.Italic, w.Style.Underline, bbuff);
bbuff.TextBackColor = w.Style.BackColor;
bbuff.TextForeColor = w.Style.ForeColor;
bbuff.FontTransparent = w.Style.Transparent;
}
else
{
bbuff.Font = GFX.FontNormal;
bbuff.TextForeColor = Color.Black;
bbuff.FontTransparent = true;
}
if (w.Type == WordType.xtWord)
DrawBreakpoint = true;
if (xtr.Breakpoint && DrawBreakpoint)
{
bbuff.TextForeColor = Control.BreakPointForeColor;
bbuff.TextBackColor = Control.BreakPointBackColor;
bbuff.FontTransparent = false;
}
if (Control.BracketMatching && (w == this.BracketEnd || w ==
this.BracketStart))
{
bbuff.TextForeColor = Control.BracketForeColor;
if (Control.BracketBackColor != Color.Transparent)
{
bbuff.TextBackColor = Control.BracketBackColor;
bbuff.FontTransparent = false;
}
wdh = bbuff.DrawTabbedString(w.Text, xpos, 0, taborig,
Control.PixelTabSize).Width;
if (Control.BracketBorderColor != Color.Transparent)
{
bbuff.DrawRect(Control.BracketBorderColor, xpos, 0, wdh,
Control.View.RowHeight - 1);
}
}
else
{
wdh = bbuff.DrawTabbedString(w.Text, xpos, 0, taborig,
Control.PixelTabSize).Width;
}
//render errors
if (w.HasError)
{
//bbuff.FillRect (Color.Red,xpos,Control.View.RowHeight-2,wdh,2);
int ey = Control.View.RowHeight - 1;
Color c = w.ErrorColor;
for (int x = 0; x < wdh + 3; x += 4)
{
bbuff.DrawLine(c, new Point(xpos + x, ey), new Point(xpos + x
+ 2, ey - 2));
bbuff.DrawLine(c, new Point(xpos + x + 2, ey - 2), new Point
(xpos + x + 4, ey));
}
}
}
else if (w.Type == WordType.xtSpace && ws)
{
bbuff.Font = GFX.FontNormal;
bbuff.TextForeColor = this.Control.WhitespaceColor;
bbuff.FontTransparent = true;
if (xtr.Breakpoint && DrawBreakpoint)
{
bbuff.TextForeColor = Control.BreakPointForeColor;
bbuff.TextBackColor = Control.BreakPointBackColor;
bbuff.FontTransparent = false;
}
bbuff.DrawTabbedString("⌨️ 快捷键说明
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