void KillLayout()
{
if (layout == null)
{
return;
}
layout.Dispose();
layout = null;
boldAtts.Dispose();
widths = null;
}
public void Dispose()
{
if (attributes != null)
{
attributes.ForEach(attr => attr.Dispose());
attributes.Clear();
attributes = null;
}
if (attrList != null)
{
attrList.Dispose();
attrList = null;
}
if (Layout != null)
{
Layout.Dispose();
Layout = null;
}
}
public double ColumnToX (DocumentLine line, int column)
{
column--;
// calculate virtual indentation
if (column > 0 && line.Length == 0 && textEditor.GetTextEditorData ().HasIndentationTracker) {
using (var l = PangoUtil.CreateLayout (textEditor, textEditor.GetTextEditorData ().IndentationTracker.GetIndentationString (line.Offset))) {
l.Alignment = Pango.Alignment.Left;
l.FontDescription = textEditor.Options.Font;
l.Tabs = tabArray;
Pango.Rectangle ink_rect, logical_rect;
l.GetExtents (out ink_rect, out logical_rect);
return (logical_rect.Width + Pango.Scale.PangoScale - 1) / Pango.Scale.PangoScale;
}
}
if (line == null || line.Length == 0 || column < 0)
return 0;
int logicalRulerColumn = line.GetLogicalColumn (textEditor.GetTextEditorData (), textEditor.Options.RulerColumn);
int lineOffset = line.Offset;
StringBuilder textBuilder = new StringBuilder ();
ISyntaxMode mode = Document.SyntaxMode != null && textEditor.Options.EnableSyntaxHighlighting ? Document.SyntaxMode : new SyntaxMode (Document);
var startChunk = GetCachedChunks (mode, Document, textEditor.ColorStyle, line, lineOffset, line.Length);
foreach (Chunk chunk in startChunk) {
try {
textBuilder.Append (Document.GetTextAt (chunk));
} catch (Exception e) {
Console.WriteLine (e);
return 0;
}
}
string lineText = textBuilder.ToString ();
char[] lineChars = lineText.ToCharArray ();
bool containsPreedit = textEditor.ContainsPreedit (lineOffset, line.Length);
uint preeditLength = 0;
if (containsPreedit) {
lineText = lineText.Insert (textEditor.preeditOffset - lineOffset, textEditor.preeditString);
preeditLength = (uint)textEditor.preeditString.Length;
}
if (column < lineText.Length)
lineText = lineText.Substring (0, column);
var layout = PangoUtil.CreateLayout (textEditor, lineText);
layout.Alignment = Pango.Alignment.Left;
layout.FontDescription = textEditor.Options.Font;
layout.Tabs = tabArray;
int startOffset = lineOffset, endOffset = lineOffset + line.Length;
uint curIndex = 0, byteIndex = 0;
uint curChunkIndex = 0, byteChunkIndex = 0;
List<Pango.Attribute> attributes = new List<Pango.Attribute> ();
uint oldEndIndex = 0;
Cairo.Color curFgColor = textEditor.ColorStyle.PlainText.Foreground;
Cairo.Color curBgColor = textEditor.ColorStyle.PlainText.Background;
var curWeight = Xwt.Drawing.FontWeight.Normal;
var curStyle = Xwt.Drawing.FontStyle.Normal;
foreach (Chunk chunk in startChunk) {
ChunkStyle chunkStyle = chunk != null ? textEditor.ColorStyle.GetChunkStyle (chunk) : null;
foreach (TextLineMarker marker in line.Markers)
chunkStyle = marker.GetStyle (chunkStyle);
if (chunkStyle != null) {
startOffset = chunk.Offset;
endOffset = chunk.EndOffset;
uint startIndex = (uint)(oldEndIndex);
uint endIndex = (uint)(startIndex + chunk.Length);
oldEndIndex = endIndex;
if (containsPreedit) {
if (textEditor.preeditOffset < startOffset)
startIndex += preeditLength;
if (textEditor.preeditOffset < endOffset)
endIndex += preeditLength;
}
HandleSelection (lineOffset, logicalRulerColumn, - 1, -1, chunk.Offset, chunk.EndOffset, delegate(int start, int end) {
var color = textEditor.ColorStyle.GetForeground (chunkStyle);
var si = TranslateToUTF8Index (lineChars, (uint)(startIndex + start - chunk.Offset), ref curIndex, ref byteIndex);
var ei = TranslateToUTF8Index (lineChars, (uint)(startIndex + end - chunk.Offset), ref curIndex, ref byteIndex);
if (!color.Equals (curFgColor)) {
curFgColor = color;
var foreGround = new Pango.AttrForeground (
(ushort)(color.R * ushort.MaxValue),
(ushort)(color.G * ushort.MaxValue),
(ushort)(color.B * ushort.MaxValue));
foreGround.StartIndex = si;
foreGround.EndIndex = ei;
attributes.Add (foreGround);
}
if (!chunkStyle.TransparentBackground) {
color = chunkStyle.Background;
if (!color.Equals (curBgColor)) {
var background = new Pango.AttrBackground (
(ushort)(color.R * ushort.MaxValue),
(ushort)(color.G * ushort.MaxValue),
(ushort)(color.B * ushort.MaxValue));
background.StartIndex = si;
background.EndIndex = ei;
attributes.Add (background);
}
}
}, delegate(int start, int end) {
Pango.AttrForeground selectedForeground;
if (!SelectionColor.TransparentForeground) {
var color = SelectionColor.Foreground;
if (color.Equals (curFgColor))
return;
curFgColor = color;
selectedForeground = new Pango.AttrForeground (
(ushort)(color.R * ushort.MaxValue),
(ushort)(color.G * ushort.MaxValue),
(ushort)(color.B * ushort.MaxValue));
} else {
var color = ColorStyle.GetForeground (chunkStyle);
if (color.Equals (curFgColor))
return;
curFgColor = color;
selectedForeground = new Pango.AttrForeground (
(ushort)(color.R * ushort.MaxValue),
(ushort)(color.G * ushort.MaxValue),
(ushort)(color.B * ushort.MaxValue));
}
selectedForeground.StartIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + start - chunk.Offset), ref curIndex, ref byteIndex);
selectedForeground.EndIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + end - chunk.Offset), ref curIndex, ref byteIndex);
attributes.Add (selectedForeground);
});
var translatedStartIndex = TranslateToUTF8Index (lineChars, (uint)startIndex, ref curChunkIndex, ref byteChunkIndex);
var translatedEndIndex = TranslateToUTF8Index (lineChars, (uint)endIndex, ref curChunkIndex, ref byteChunkIndex);
if (chunkStyle.FontWeight != curWeight) {
curWeight = chunkStyle.FontWeight;
var attrWeight = new Pango.AttrWeight ((Pango.Weight)chunkStyle.FontWeight);
attrWeight.StartIndex = translatedStartIndex;
attrWeight.EndIndex = translatedEndIndex;
attributes.Add (attrWeight);
}
if (chunkStyle.FontStyle != curStyle) {
curStyle = chunkStyle.FontStyle;
Pango.AttrStyle attrStyle = new Pango.AttrStyle ((Pango.Style)chunkStyle.FontStyle);
attrStyle.StartIndex = translatedStartIndex;
attrStyle.EndIndex = translatedEndIndex;
attributes.Add (attrStyle);
}
if (chunkStyle.Underline) {
var attrUnderline = new Pango.AttrUnderline (Pango.Underline.Single);
attrUnderline.StartIndex = translatedStartIndex;
attrUnderline.EndIndex = translatedEndIndex;
attributes.Add (attrUnderline);
}
}
}
Pango.AttrList attributeList = new Pango.AttrList ();
attributes.ForEach (attr => attributeList.Insert (attr));
layout.Attributes = attributeList;
Pango.Rectangle inkrect, logicalrect;
layout.GetExtents (out inkrect, out logicalrect);
attributes.ForEach (attr => attr.Dispose ());
attributeList.Dispose ();
layout.Dispose ();
return (logicalrect.Width + Pango.Scale.PangoScale - 1) / Pango.Scale.PangoScale;
}
public double ColumnToX (LineSegment line, int column)
{
column--;
if (line == null || line.Length == 0 || column < 0)
return 0;
int logicalRulerColumn = line.GetLogicalColumn (textEditor.GetTextEditorData (), textEditor.Options.RulerColumn);
int lineOffset = line.Offset;
StringBuilder textBuilder = new StringBuilder ();
ISyntaxMode mode = Document.SyntaxMode != null && textEditor.Options.EnableSyntaxHighlighting ? Document.SyntaxMode : new SyntaxMode (Document);
var startChunk = GetCachedChunks (mode, Document, textEditor.ColorStyle, line, lineOffset, line.Length);
foreach (Chunk chunk in startChunk) {
try {
textBuilder.Append (Document.GetTextAt (chunk));
} catch (Exception e) {
Console.WriteLine (e);
return 0;
}
}
string lineText = textBuilder.ToString ();
char[] lineChars = lineText.ToCharArray ();
bool containsPreedit = textEditor.ContainsPreedit (lineOffset, line.Length);
uint preeditLength = 0;
if (containsPreedit) {
lineText = lineText.Insert (textEditor.preeditOffset - lineOffset, textEditor.preeditString);
preeditLength = (uint)textEditor.preeditString.Length;
}
if (column < lineText.Length)
lineText = lineText.Substring (0, column);
var layout = PangoUtil.CreateLayout (textEditor, lineText);
layout.Alignment = Pango.Alignment.Left;
layout.FontDescription = textEditor.Options.Font;
layout.Tabs = tabArray;
int startOffset = lineOffset, endOffset = lineOffset + line.Length;
uint curIndex = 0, byteIndex = 0;
uint curChunkIndex = 0, byteChunkIndex = 0;
List<Pango.Attribute> attributes = new List<Pango.Attribute> ();
uint oldEndIndex = 0;
foreach (Chunk chunk in startChunk) {
ChunkStyle chunkStyle = chunk != null ? textEditor.ColorStyle.GetChunkStyle (chunk) : null;
foreach (TextMarker marker in line.Markers)
chunkStyle = marker.GetStyle (chunkStyle);
if (chunkStyle != null) {
startOffset = chunk.Offset;
endOffset = chunk.EndOffset;
uint startIndex = (uint)(oldEndIndex);
uint endIndex = (uint)(startIndex + chunk.Length);
oldEndIndex = endIndex;
if (containsPreedit) {
if (textEditor.preeditOffset < startOffset)
startIndex += preeditLength;
if (textEditor.preeditOffset < endOffset)
endIndex += preeditLength;
}
HandleSelection (lineOffset, logicalRulerColumn, - 1, -1, chunk.Offset, chunk.EndOffset, delegate(int start, int end) {
Pango.AttrForeground foreGround = new Pango.AttrForeground (chunkStyle.Color.Red, chunkStyle.Color.Green, chunkStyle.Color.Blue);
foreGround.StartIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + start - chunk.Offset), ref curIndex, ref byteIndex);
foreGround.EndIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + end - chunk.Offset), ref curIndex, ref byteIndex);
attributes.Add (foreGround);
if (!chunkStyle.TransparentBackround) {
var background = new Pango.AttrBackground (chunkStyle.BackgroundColor.Red, chunkStyle.BackgroundColor.Green, chunkStyle.BackgroundColor.Blue);
background.StartIndex = foreGround.StartIndex;
background.EndIndex = foreGround.EndIndex;
attributes.Add (background);
}
}, delegate(int start, int end) {
Pango.AttrForeground selectedForeground = new Pango.AttrForeground (SelectionColor.Color.Red, SelectionColor.Color.Green, SelectionColor.Color.Blue);
selectedForeground.StartIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + start - chunk.Offset), ref curIndex, ref byteIndex);
selectedForeground.EndIndex = TranslateToUTF8Index (lineChars, (uint)(startIndex + end - chunk.Offset), ref curIndex, ref byteIndex);
attributes.Add (selectedForeground);
});
var translatedStartIndex = TranslateToUTF8Index (lineChars, (uint)startIndex, ref curChunkIndex, ref byteChunkIndex);
var translatedEndIndex = TranslateToUTF8Index (lineChars, (uint)endIndex, ref curChunkIndex, ref byteChunkIndex);
if (chunkStyle.Bold) {
Pango.AttrWeight attrWeight = new Pango.AttrWeight (Pango.Weight.Bold);
attrWeight.StartIndex = translatedStartIndex;
attrWeight.EndIndex = translatedEndIndex;
attributes.Add (attrWeight);
}
if (chunkStyle.Italic) {
Pango.AttrStyle attrStyle = new Pango.AttrStyle (Pango.Style.Italic);
attrStyle.StartIndex = translatedStartIndex;
attrStyle.EndIndex = translatedEndIndex;
attributes.Add (attrStyle);
}
if (chunkStyle.Underline) {
Pango.AttrUnderline attrUnderline = new Pango.AttrUnderline (Pango.Underline.Single);
attrUnderline.StartIndex = translatedStartIndex;
attrUnderline.EndIndex = translatedEndIndex;
attributes.Add (attrUnderline);
}
}
}
Pango.AttrList attributeList = new Pango.AttrList ();
attributes.ForEach (attr => attributeList.Insert (attr));
layout.Attributes = attributeList;
Pango.Rectangle ink_rect, logical_rect;
layout.GetExtents (out ink_rect, out logical_rect);
attributes.ForEach (attr => attr.Dispose ());
attributeList.Dispose ();
layout.Dispose ();
return (logical_rect.Width + Pango.Scale.PangoScale - 1) / Pango.Scale.PangoScale;
}