| static private IsNearerToAThanB ( int num, int a, int b ) : bool | ||
| num | int | |
| a | int | |
| b | int | |
| return | bool | |
internal TextLocation GetLogicalColumn(int lineNumber, int visualPosX, out FoldMarker inFoldMarker)
{
int logicalColumnInternal;
FoldMarker foldMarker;
int num;
TextLocation textLocation = new TextLocation();
visualPosX += this.textArea.VirtualTop.X;
inFoldMarker = null;
if (lineNumber >= base.Document.TotalNumberOfLines)
{
return(new TextLocation(visualPosX / this.WideSpaceWidth, lineNumber));
}
if (visualPosX <= 0)
{
return(new TextLocation(0, lineNumber));
}
int endColumn = 0;
int num1 = 0;
using (Graphics graphic = this.textArea.CreateGraphics())
{
while (true)
{
LineSegment lineSegment = base.Document.GetLineSegment(lineNumber);
foldMarker = this.FindNextFoldedFoldingOnLineAfterColumn(lineNumber, endColumn - 1);
int num2 = (foldMarker != null ? foldMarker.StartColumn : 2147483647);
logicalColumnInternal = this.GetLogicalColumnInternal(graphic, lineSegment, endColumn, num2, ref num1, visualPosX);
if (logicalColumnInternal < num2)
{
break;
}
lineNumber = foldMarker.EndLine;
endColumn = foldMarker.EndColumn;
num = num1 + 1 + this.MeasureStringWidth(graphic, foldMarker.FoldText, base.TextEditorProperties.FontContainer.RegularFont);
if (num >= visualPosX)
{
goto Label1;
}
num1 = num;
}
return(new TextLocation(logicalColumnInternal, lineNumber));
}
return(textLocation);
Label1:
inFoldMarker = foldMarker;
if (!TextView.IsNearerToAThanB(visualPosX, num1, num))
{
textLocation = new TextLocation(foldMarker.EndColumn, foldMarker.EndLine);
return(textLocation);
}
else
{
textLocation = new TextLocation(foldMarker.StartColumn, foldMarker.StartLine);
return(textLocation);
}
}
private int GetLogicalColumnInternal(Graphics g, LineSegment line, int start, int end, ref int drawingPos, int targetVisualPosX)
{
int num;
if (start == end)
{
return(end);
}
int tabIndent = base.Document.TextEditorProperties.TabIndent;
FontContainer fontContainer = base.TextEditorProperties.FontContainer;
List <TextWord> words = line.Words;
if (words == null)
{
return(0);
}
int length = 0;
for (int i = 0; i < words.Count; i++)
{
TextWord item = words[i];
if (length >= end)
{
return(length);
}
if (length + item.Length >= start)
{
switch (item.Type)
{
case TextWordType.Word:
{
int num1 = Math.Max(length, start);
int num2 = Math.Min(length + item.Length, end) - num1;
string text = base.Document.GetText(line.Offset + num1, num2);
Font font = item.GetFont(fontContainer) ?? fontContainer.RegularFont;
num = drawingPos + this.MeasureStringWidth(g, text, font);
if (num < targetVisualPosX)
{
break;
}
for (int j = 0; j < text.Length; j++)
{
char chr = text[j];
num = drawingPos + this.MeasureStringWidth(g, chr.ToString(), font);
if (num >= targetVisualPosX)
{
if (TextView.IsNearerToAThanB(targetVisualPosX, drawingPos, num))
{
return(num1 + j);
}
return(num1 + j + 1);
}
drawingPos = num;
}
return(num1 + text.Length);
}
case TextWordType.Space:
{
num = drawingPos + this.spaceWidth;
if (num < targetVisualPosX)
{
break;
}
if (TextView.IsNearerToAThanB(targetVisualPosX, drawingPos, num))
{
return(length);
}
return(length + 1);
}
case TextWordType.Tab:
{
drawingPos = (drawingPos + 4) / tabIndent / this.WideSpaceWidth * tabIndent * this.WideSpaceWidth;
num = drawingPos + tabIndent * this.WideSpaceWidth;
if (num < targetVisualPosX)
{
break;
}
if (TextView.IsNearerToAThanB(targetVisualPosX, drawingPos, num))
{
return(length);
}
return(length + 1);
}
default:
{
throw new NotSupportedException();
}
}
drawingPos = num;
}
length += item.Length;
}
return(length);
}