internal Line(Document document, int LineNo, string Text, HorizontalAlignment align, Font font, Color color,
Color back_color, TextPositioning text_position, float char_offset, float left_indent, float hanging_indent,
float right_indent, float spacing_before, float spacing_after, float line_spacing, bool line_spacing_multiple,
TabStopCollection tab_stops, bool visible, LineEnding ending) : this(document, ending)
{
space = Text.Length > DEFAULT_TEXT_LEN ? Text.Length + 1 : DEFAULT_TEXT_LEN;
text = new StringBuilder(Text, space);
line_no = LineNo;
this.ending = ending;
alignment = align;
indent = left_indent;
HangingIndent = hanging_indent;
this.right_indent = right_indent;
this.spacing_before = spacing_before;
this.spacing_after = spacing_after;
this.tab_stops = tab_stops;
this.line_spacing = line_spacing;
this.line_spacing_multiple = line_spacing_multiple;
widths = new float[space + 1];
tags = new LineTag(this, 1);
tags.Font = font;
tags.Color = color;
tags.BackColor = back_color;
tags.TextPosition = text_position;
tags.CharOffset = char_offset;
tags.Visible = visible;
}
public TabStopCollection Clone()
{
var n = new TabStopCollection();
foreach (var tab in tabs.Keys)
{
n.tabs.Add(tab, null);
}
return(n);
}
public virtual SizeF SizeOfPosition(Graphics dc, int pos)
{
if ((pos >= line.TextLengthWithoutEnding() && line.document.multiline) || !visible)
{
return(SizeF.Empty);
}
string text = line.text.ToString(pos, 1);
switch ((int)text [0])
{
case '\t':
if (!line.document.multiline)
{
goto case 10;
}
SizeF res = TextBoxTextRenderer.MeasureText(dc, " ", FontToDisplay); // This way we get the height, not that it is ever used...
float left = line.widths [pos];
float right = -1;
TabStopCollection stops = line.tab_stops;
float tabPos;
for (int i = 0; i < stops.Count; i++)
{
tabPos = stops [i].Position;
if (tabPos >= left)
{
if (tabPos <= line.document.viewport_width - line.RightIndent)
{
break; // Can't use tabs that are past the end of the line.
}
right = stops [i].CalculateRight(line, pos);
break;
}
}
if (right < 0)
{
float maxWidth = dc.DpiX / 2; // tab stops are 1/2"
right = (float)(Math.Floor(left / maxWidth) + 1) * maxWidth;
}
res.Width = right - left;
return(res);
case 10:
case 13:
return(TextBoxTextRenderer.MeasureText(dc, "\u000D", FontToDisplay));
}
return(TextBoxTextRenderer.MeasureText(dc, text, FontToDisplay));
}
internal Line(Document document, int LineNo, string Text, Font font, Color color, LineEnding ending) : this(document, ending)
{
space = Text.Length > DEFAULT_TEXT_LEN ? Text.Length + 1 : DEFAULT_TEXT_LEN;
text = new StringBuilder(Text, space);
line_no = LineNo;
this.ending = ending;
tab_stops = new TabStopCollection();
widths = new float[space + 1];
tags = new LineTag(this, 1);
tags.Font = font;
tags.Color = color;
}
