protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
caretRect.Height = Configurations.FontDisplayHeight;
if (null == drawingVisual)
{
drawingVisual = new DrawingVisual();
PauseCaretTimer(false); // Get timer going!
}
// There's no script yet.
if (null == this.currentScript)
return drawingVisual;
DrawingContext context = drawingVisual.RenderOpen();
CodeFragment[] crossHighlight = textEditorCanvas.TextEditorCore.GetCrossHighlightArray();
if (crossHighlight != null)
{
if (crossHighlight.Length != 0)
{
List<Rect> rectList = new List<Rect>();
foreach (CodeFragment codeFragment in crossHighlight)
{
CharPosition start = currentScript.CreateCharPosition();
start.SetCharacterPosition(codeFragment.ColStart, codeFragment.Line);
CharPosition end = currentScript.CreateCharPosition();
end.SetCharacterPosition(codeFragment.ColEnd + 1, codeFragment.Line);
List<Rect> tempList = CalculateRectangles(start, end, renderParams.firstVisibleLine);
if (tempList != null)
rectList.AddRange(tempList);
}
//SolidColorBrush crossHighlightBrush = new SolidColorBrush(Color.FromRgb(226, 230, 214));
RenderRectangles(context, rectList, UIColors.CrossHighlightColor);
}
}
// We don't care about keyboard focus when in playback mode.
if (false == TextEditorControl.Instance.IsInPlaybackMode)
{
// If the focus is not within the canvas, or on any extension popup,
// then there's no need to show the caret (focus is probably other app).
if (false == TextEditorControl.Instance.ShouldDisplayCaret())
caretVisibility = System.Windows.Visibility.Hidden;
}
// Cursor rendering pass...
if (caretVisibility == System.Windows.Visibility.Visible)
{
System.Windows.Rect displayRect = caretRect;
double firstVisibleColumn = textEditorCanvas.FirstVisibleColumn * Configurations.FormatFontWidth;
displayRect.Offset(-firstVisibleColumn, -renderParams.firstVisibleLine * Configurations.FontDisplayHeight);
context.DrawRectangle(Brushes.Black, null, displayRect);
}
context.Close();
return drawingVisual;
}
protected abstract DrawingVisual RenderCore(RenderParameters renderParams);
protected abstract DrawingVisual RenderCore(RenderParameters renderParams);
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (drawingVisual == null)
{
drawingVisual = new DrawingVisual();
}
if (null == currentScript)
{
return(drawingVisual); // No active script yet!
}
System.Windows.Point linePosition = new System.Windows.Point(
Configurations.CanvasMarginLeft, 0);
ITextEditorCore textCore = textEditorCanvas.TextEditorCore;
ITextBuffer textBuffer = currentScript.GetTextBuffer();
numberOfLines = textBuffer.GetLineCount();
int lastVisibleLine = renderParams.firstVisibleLine + renderParams.maxVisibleLines;
if (lastVisibleLine >= numberOfLines)
{
lastVisibleLine = numberOfLines - 1;
}
// Retrieve the DrawingContext from the DrawingVisual.
DrawingContext context = drawingVisual.RenderOpen();
int maxColumns = textEditorCanvas.MaxVisibelColumns + 1;
double hiddenWidth = textEditorCanvas.FirstVisibleColumn * Configurations.FormatFontWidth;
CharPosition converter = this.currentScript.CreateCharPosition();
Typeface font = new Typeface(Configurations.FontFace);
for (int lineIndex = renderParams.firstVisibleLine; lineIndex <= lastVisibleLine; lineIndex++)
{
// A constant starting point on left edge.
linePosition.X = Configurations.CanvasMarginLeft;
int startColumn = converter.VisualToCharOffset(lineIndex, textEditorCanvas.FirstVisibleColumn);
string lineContent = textBuffer.GetLineContent(lineIndex);
int lineLength = (lineContent != null ? lineContent.Length : 0);
if (lineLength <= startColumn)
{
linePosition.Y += Configurations.FontDisplayHeight;
continue;
}
if (startColumn > 0)
{
string hiddenText = lineContent.Substring(0, startColumn);
hiddenText = hiddenText.Replace("\t", Configurations.TabSpaces);
// Accounting for the part that is hidden beyond the left of canvas.
double hiddenTextWidth = hiddenText.Length * Configurations.FormatFontWidth;
linePosition.X = linePosition.X + hiddenTextWidth - hiddenWidth;
}
int endColumn = startColumn + maxColumns;
endColumn = ((endColumn >= lineLength) ? lineLength - 1 : endColumn);
for (int charIndex = startColumn; charIndex <= endColumn; charIndex++)
{
CodeFragment fragment = null;
int fragmentWidth = textCore.GetFragment(
charIndex, lineIndex, out fragment);
// We may be showing partial fragment now.
if (null != fragment)
{
fragmentWidth -= (charIndex - fragment.ColStart);
}
int offsetToNextChar = fragmentWidth - 1;
if ((charIndex + fragmentWidth) > (lineLength - 1))
{
fragmentWidth = (lineLength - 1) - charIndex;
offsetToNextChar = fragmentWidth - 1;
}
// Initialize the text store.
string textContent = string.Empty;
textContent = lineContent.Substring(charIndex,
((fragmentWidth == 0) ? 1 : fragmentWidth));
// Replace all TAB characters with actual spaces.
textContent = textContent.Replace("\t", Configurations.TabSpaces);
CodeFragment.Type fragmentType = CodeFragment.Type.None;
if (null != fragment)
{
fragmentType = fragment.CodeType;
}
Color textColor = CodeFragment.GetFragmentColor(fragmentType);
if ((textBuffer.ParsePending == true) && (fragmentType == CodeFragment.Type.None))
{
textColor = Colors.Black;
}
FormattedText formattedText = new FormattedText(
textContent,
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
font,
Configurations.FontHeight,
new SolidColorBrush(textColor));
// Draw the formatted text into the drawing context.
context.DrawText(formattedText, linePosition);
if (lineContent[charIndex] == '\n')
{
break;
}
else
{
linePosition.X += formattedText.WidthIncludingTrailingWhitespace;
}
if (fragmentWidth > 0)
{
charIndex += offsetToNextChar;
}
}
// Update the line position coordinate for the displayed line.
linePosition.Y += Configurations.FontDisplayHeight;
}
// Persist the drawn text content.
context.Close();
return(drawingVisual);
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
caretRect.Height = Configurations.FontDisplayHeight;
if (null == drawingVisual)
{
drawingVisual = new DrawingVisual();
PauseCaretTimer(false); // Get timer going!
}
// There's no script yet.
if (null == this.currentScript)
{
return(drawingVisual);
}
DrawingContext context = drawingVisual.RenderOpen();
CodeFragment[] crossHighlight = textEditorCanvas.TextEditorCore.GetCrossHighlightArray();
if (crossHighlight != null)
{
if (crossHighlight.Length != 0)
{
List <Rect> rectList = new List <Rect>();
foreach (CodeFragment codeFragment in crossHighlight)
{
CharPosition start = currentScript.CreateCharPosition();
start.SetCharacterPosition(codeFragment.ColStart, codeFragment.Line);
CharPosition end = currentScript.CreateCharPosition();
end.SetCharacterPosition(codeFragment.ColEnd + 1, codeFragment.Line);
List <Rect> tempList = CalculateRectangles(start, end, renderParams.firstVisibleLine);
if (tempList != null)
{
rectList.AddRange(tempList);
}
}
//SolidColorBrush crossHighlightBrush = new SolidColorBrush(Color.FromRgb(226, 230, 214));
RenderRectangles(context, rectList, UIColors.CrossHighlightColor);
}
}
// We don't care about keyboard focus when in playback mode.
if (false == TextEditorControl.Instance.IsInPlaybackMode)
{
// If the focus is not within the canvas, or on any extension popup,
// then there's no need to show the caret (focus is probably other app).
if (false == TextEditorControl.Instance.ShouldDisplayCaret())
{
caretVisibility = System.Windows.Visibility.Hidden;
}
}
// Cursor rendering pass...
if (caretVisibility == System.Windows.Visibility.Visible)
{
System.Windows.Rect displayRect = caretRect;
double firstVisibleColumn = textEditorCanvas.FirstVisibleColumn * Configurations.FormatFontWidth;
displayRect.Offset(-firstVisibleColumn, -renderParams.firstVisibleLine * Configurations.FontDisplayHeight);
context.DrawRectangle(Brushes.Black, null, displayRect);
}
context.Close();
return(drawingVisual);
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (drawingVisual == null)
drawingVisual = new DrawingVisual();
if (null == currentScript)
return drawingVisual; // No active script yet!
System.Windows.Point linePosition = new System.Windows.Point(
Configurations.CanvasMarginLeft, 0);
ITextEditorCore textCore = textEditorCanvas.TextEditorCore;
ITextBuffer textBuffer = currentScript.GetTextBuffer();
numberOfLines = textBuffer.GetLineCount();
int lastVisibleLine = renderParams.firstVisibleLine + renderParams.maxVisibleLines;
if (lastVisibleLine >= numberOfLines)
lastVisibleLine = numberOfLines - 1;
// Retrieve the DrawingContext from the DrawingVisual.
DrawingContext context = drawingVisual.RenderOpen();
int maxColumns = textEditorCanvas.MaxVisibelColumns + 1;
double hiddenWidth = textEditorCanvas.FirstVisibleColumn * Configurations.FormatFontWidth;
CharPosition converter = this.currentScript.CreateCharPosition();
Typeface font = new Typeface(Configurations.FontFace);
for (int lineIndex = renderParams.firstVisibleLine; lineIndex <= lastVisibleLine; lineIndex++)
{
// A constant starting point on left edge.
linePosition.X = Configurations.CanvasMarginLeft;
int startColumn = converter.VisualToCharOffset(lineIndex, textEditorCanvas.FirstVisibleColumn);
string lineContent = textBuffer.GetLineContent(lineIndex);
int lineLength = (lineContent != null ? lineContent.Length : 0);
if (lineLength <= startColumn)
{
linePosition.Y += Configurations.FontDisplayHeight;
continue;
}
if (startColumn > 0)
{
string hiddenText = lineContent.Substring(0, startColumn);
hiddenText = hiddenText.Replace("\t", Configurations.TabSpaces);
// Accounting for the part that is hidden beyond the left of canvas.
double hiddenTextWidth = hiddenText.Length * Configurations.FormatFontWidth;
linePosition.X = linePosition.X + hiddenTextWidth - hiddenWidth;
}
int endColumn = startColumn + maxColumns;
endColumn = ((endColumn >= lineLength) ? lineLength - 1 : endColumn);
for (int charIndex = startColumn; charIndex <= endColumn; charIndex++)
{
CodeFragment fragment = null;
int fragmentWidth = textCore.GetFragment(
charIndex, lineIndex, out fragment);
// We may be showing partial fragment now.
if (null != fragment)
fragmentWidth -= (charIndex - fragment.ColStart);
int offsetToNextChar = fragmentWidth - 1;
if ((charIndex + fragmentWidth) > (lineLength - 1))
{
fragmentWidth = (lineLength - 1) - charIndex;
offsetToNextChar = fragmentWidth - 1;
}
// Initialize the text store.
string textContent = string.Empty;
textContent = lineContent.Substring(charIndex,
((fragmentWidth == 0) ? 1 : fragmentWidth));
// Replace all TAB characters with actual spaces.
textContent = textContent.Replace("\t", Configurations.TabSpaces);
CodeFragment.Type fragmentType = CodeFragment.Type.None;
if (null != fragment)
fragmentType = fragment.CodeType;
Color textColor = CodeFragment.GetFragmentColor(fragmentType);
if ((textBuffer.ParsePending == true) && (fragmentType == CodeFragment.Type.None))
textColor = Colors.Black;
FormattedText formattedText = new FormattedText(
textContent,
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
font,
Configurations.FontHeight,
new SolidColorBrush(textColor));
// Draw the formatted text into the drawing context.
context.DrawText(formattedText, linePosition);
if (lineContent[charIndex] == '\n')
break;
else
{
linePosition.X += formattedText.WidthIncludingTrailingWhitespace;
}
if (fragmentWidth > 0)
charIndex += offsetToNextChar;
}
// Update the line position coordinate for the displayed line.
linePosition.Y += Configurations.FontDisplayHeight;
}
// Persist the drawn text content.
context.Close();
return drawingVisual;
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (null == drawingVisual)
drawingVisual = new DrawingVisual();
// There's no script yet.
if (null == currentScript)
return drawingVisual;
if (null == textEditorCanvas.TextEditorCore.CurrentTextBuffer)
return drawingVisual;
DrawingContext context = drawingVisual.RenderOpen();
lineSelection.SetCharacterPosition(textEditorCanvas.TextEditorCore.CursorPosition);
Rect cursorSelections = CalculateRectangleFullLine(lineSelection, renderParams.firstVisibleLine);
RenderRectangle(context, cursorSelections, UIColors.CursorSelectionColor);
List<InlineMessageItem> messageList = Solution.Current.GetInlineMessage();
if (messageList != null)
{
foreach (InlineMessageItem message in messageList)
{
int line = message.Line;
int column = message.Column;
if (Solution.Current.ActiveScript == null || message.FilePath != Solution.Current.ActiveScript.GetParsedScript().GetScriptPath())
continue;
if (line >= 0)
{
System.Drawing.Point inlineSelectionStart = new System.Drawing.Point(column, line);
inLineSelection.SetCharacterPosition(inlineSelectionStart);
Rect outputSelections = CalculateRectangleFullLine(inLineSelection, renderParams.firstVisibleLine);
Color inLineColor = new Color();
switch (message.Type)
{
case InlineMessageItem.OutputMessageType.Error:
inLineColor = UIColors.InlinErrorColor;
break;
case InlineMessageItem.OutputMessageType.Warning:
inLineColor = UIColors.InlineWarningColor;
break;
case InlineMessageItem.OutputMessageType.PossibleError:
inLineColor = UIColors.InlinPossibleErrorColor;
break;
case InlineMessageItem.OutputMessageType.PossibleWarning:
inLineColor = UIColors.InlinPossibleWarningColor;
break;
}
RenderRectangle(context, outputSelections, inLineColor);
}
}
}
if (null != breakpointsRef)
{
CharPosition startPoint = currentScript.CreateCharPosition();
CharPosition endPoint = currentScript.CreateCharPosition();
foreach (CodeRange breakpoint in breakpointsRef)
{
if (FallsWithinActiveScript(breakpoint.StartInclusive) == false)
continue; // This breakpoint does not belong to the script.
int startX = breakpoint.StartInclusive.CharNo - 1;
int startY = breakpoint.StartInclusive.LineNo - 1;
int endX = breakpoint.EndExclusive.CharNo - 1;
int endY = breakpoint.EndExclusive.LineNo - 1;
startPoint.SetCharacterPosition(startX, startY);
endPoint.SetCharacterPosition(endX, endY);
Rect region = CalculateRectangleFullLine(startPoint, renderParams.firstVisibleLine);
RenderRectangle(context, region, UIColors.BreakpointLineColor);
}
}
if (FallsWithinActiveScript(executionCursor.StartInclusive))
{
CharPosition start = currentScript.CreateCharPosition();
CharPosition end = currentScript.CreateCharPosition();
start.SetCharacterPosition(
executionCursor.StartInclusive.CharNo - 1,
executionCursor.StartInclusive.LineNo - 1);
end.SetCharacterPosition(
executionCursor.EndExclusive.CharNo - 1,
executionCursor.EndExclusive.LineNo - 1);
List<Rect> execCursors = CalculateRectangles(start, end, renderParams.firstVisibleLine);
RenderRectangles(context, execCursors, UIColors.ExecutionCursorColor);
}
List<Rect> selections = CalculateRectangles(selectionStart, selectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, selections, UIColors.SelectionsColor);
List<FindPosition> searchResults = textEditorCanvas.TextEditorCore.CurrentTextBuffer.SearchResult;
if (searchResults != null)
{
System.Drawing.Point start;
System.Drawing.Point end;
foreach (FindPosition item in searchResults)
{
start = item.startPoint;
end = item.endPoint;
end.X += 1;
allOccurencesSelectionStart.SetCharacterPosition(start);
allOccurencesSelectionEnd.SetCharacterPosition(end);
List<Rect> findSelections = CalculateRectangles(allOccurencesSelectionStart, allOccurencesSelectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, findSelections, Colors.Yellow);
}
int searchIndex = textEditorCanvas.TextEditorCore.CurrentTextBuffer.CurrentSearchIndex;
if (searchResults.Count != 0 && searchIndex != -1)
{
FindPosition currentPosition = searchResults[searchIndex];
System.Drawing.Point startPoint = currentPosition.startPoint;
System.Drawing.Point endPoint = currentPosition.endPoint;
endPoint.X += 1;
if (startPoint.X == 0 && endPoint.X == 0 &&
startPoint.Y == 0 && endPoint.Y == 0)
{
}
else
{
currentOccurenceSelectionStart.SetCharacterPosition(startPoint);
currentOccurenceSelectionEnd.SetCharacterPosition(endPoint);
List<Rect> currentOccurenceSelections = CalculateRectangles(currentOccurenceSelectionStart, currentOccurenceSelectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, currentOccurenceSelections, Colors.Orange);
}
}
}
context.Close();
return drawingVisual;
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (null == drawingVisual)
drawingVisual = new DrawingVisual();
if (null == currentScript)
return drawingVisual; // There's nothing here yet.
// Even when a line is half shown, we draw it in full.
renderParams.maxVisibleLines = renderParams.maxVisibleLines + 1;
ITextBuffer textBuffer = currentScript.GetTextBuffer();
int lineCount = textBuffer.GetLineCount();
lineCount = ((0 == lineCount) ? 1 : lineCount);
if (lineCount > renderParams.maxVisibleLines)
lineCount = renderParams.maxVisibleLines;
int lastVisibleLine = renderParams.firstVisibleLine + lineCount;
DrawingContext context = drawingVisual.RenderOpen();
double columnHeight = renderParams.maxVisibleLines * Configurations.FontDisplayHeight;
// BreakpointIcon Rectangle
Rect breakpointRectangle = new Rect(0, 0, Configurations.BreakpointColumnWidth, columnHeight);
SolidColorBrush breakpointRectangleBrush = new SolidColorBrush(UIColors.BreakpointColor);
context.DrawRectangle(breakpointRectangleBrush, null, breakpointRectangle);
// Line Number Rectangle
double lineColumnStart = Configurations.LineNumberColumnStart;
double lineColumnWidth = Configurations.LineNumberColumnWidth;
Rect numberRectangle = new Rect(lineColumnStart, 0, lineColumnWidth, columnHeight);
SolidColorBrush lineColumnBrush = new SolidColorBrush(UIColors.LineColumnBrushColor);
context.DrawRectangle(lineColumnBrush, null, numberRectangle);
//Shadow Lines
double halfShadowWidth = Configurations.ShadowWidth / 2;
double start = Configurations.LineNumberColumnEnd;
Point startPointDark = new Point(start, 0);
Point startPointLight = new Point(start + halfShadowWidth, 0);
Point endPointDark = new Point(start, columnHeight);
Point endPointLight = new Point(start + halfShadowWidth, columnHeight);
SolidColorBrush shadowDarkBrush = new SolidColorBrush(UIColors.ShadowDarkColor);
SolidColorBrush shadowLightBrush = new SolidColorBrush(UIColors.ShadowLightColor);
Pen darkPen = new Pen(shadowDarkBrush, halfShadowWidth);
Pen lightPen = new Pen(shadowLightBrush, halfShadowWidth);
context.DrawLine(darkPen, startPointDark, endPointDark);
context.DrawLine(lightPen, startPointLight, endPointLight);
double textColumnRightEdge = Configurations.LineNumberColumnStart +
lineColumnWidth - Configurations.LineNumberColumnPadding;
Point point = new Point(textColumnRightEdge, 0);
Typeface typeface = new Typeface(Configurations.FontFace);
for (int index = renderParams.firstVisibleLine + 1; index <= lastVisibleLine; index++)
{
FormattedText formattedtext = new FormattedText(index.ToString(), CultureInfo.GetCultureInfo("en-US"),
FlowDirection.LeftToRight, typeface, Configurations.FontHeight, Brushes.Gray);
formattedtext.TextAlignment = TextAlignment.Right;
context.DrawText(formattedtext, point);
point.Y = point.Y + Configurations.FontDisplayHeight;
}
RenderBreakpoints(context, renderParams.firstVisibleLine, lastVisibleLine);
HighlightCurrentLine(context, renderParams.firstVisibleLine, lastVisibleLine);
RenderInlineIcons(context, renderParams.firstVisibleLine, lastVisibleLine);
context.Close();
return drawingVisual;
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (null == drawingVisual)
{
drawingVisual = new DrawingVisual();
}
// There's no script yet.
if (null == currentScript)
{
return(drawingVisual);
}
if (null == textEditorCanvas.TextEditorCore.CurrentTextBuffer)
{
return(drawingVisual);
}
DrawingContext context = drawingVisual.RenderOpen();
lineSelection.SetCharacterPosition(textEditorCanvas.TextEditorCore.CursorPosition);
Rect cursorSelections = CalculateRectangleFullLine(lineSelection, renderParams.firstVisibleLine);
RenderRectangle(context, cursorSelections, UIColors.CursorSelectionColor);
List <InlineMessageItem> messageList = Solution.Current.GetInlineMessage();
if (messageList != null)
{
foreach (InlineMessageItem message in messageList)
{
int line = message.Line;
int column = message.Column;
if (Solution.Current.ActiveScript == null || message.FilePath != Solution.Current.ActiveScript.GetParsedScript().GetScriptPath())
{
continue;
}
if (line >= 0)
{
System.Drawing.Point inlineSelectionStart = new System.Drawing.Point(column, line);
inLineSelection.SetCharacterPosition(inlineSelectionStart);
Rect outputSelections = CalculateRectangleFullLine(inLineSelection, renderParams.firstVisibleLine);
Color inLineColor = new Color();
switch (message.Type)
{
case InlineMessageItem.OutputMessageType.Error:
inLineColor = UIColors.InlinErrorColor;
break;
case InlineMessageItem.OutputMessageType.Warning:
inLineColor = UIColors.InlineWarningColor;
break;
case InlineMessageItem.OutputMessageType.PossibleError:
inLineColor = UIColors.InlinPossibleErrorColor;
break;
case InlineMessageItem.OutputMessageType.PossibleWarning:
inLineColor = UIColors.InlinPossibleWarningColor;
break;
}
RenderRectangle(context, outputSelections, inLineColor);
}
}
}
if (null != breakpointsRef)
{
CharPosition startPoint = currentScript.CreateCharPosition();
CharPosition endPoint = currentScript.CreateCharPosition();
foreach (CodeRange breakpoint in breakpointsRef)
{
if (FallsWithinActiveScript(breakpoint.StartInclusive) == false)
{
continue; // This breakpoint does not belong to the script.
}
int startX = breakpoint.StartInclusive.CharNo - 1;
int startY = breakpoint.StartInclusive.LineNo - 1;
int endX = breakpoint.EndExclusive.CharNo - 1;
int endY = breakpoint.EndExclusive.LineNo - 1;
startPoint.SetCharacterPosition(startX, startY);
endPoint.SetCharacterPosition(endX, endY);
Rect region = CalculateRectangleFullLine(startPoint, renderParams.firstVisibleLine);
RenderRectangle(context, region, UIColors.BreakpointLineColor);
}
}
if (FallsWithinActiveScript(executionCursor.StartInclusive))
{
CharPosition start = currentScript.CreateCharPosition();
CharPosition end = currentScript.CreateCharPosition();
start.SetCharacterPosition(
executionCursor.StartInclusive.CharNo - 1,
executionCursor.StartInclusive.LineNo - 1);
end.SetCharacterPosition(
executionCursor.EndExclusive.CharNo - 1,
executionCursor.EndExclusive.LineNo - 1);
List <Rect> execCursors = CalculateRectangles(start, end, renderParams.firstVisibleLine);
RenderRectangles(context, execCursors, UIColors.ExecutionCursorColor);
}
List <Rect> selections = CalculateRectangles(selectionStart, selectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, selections, UIColors.SelectionsColor);
List <FindPosition> searchResults = textEditorCanvas.TextEditorCore.CurrentTextBuffer.SearchResult;
if (searchResults != null)
{
System.Drawing.Point start;
System.Drawing.Point end;
foreach (FindPosition item in searchResults)
{
start = item.startPoint;
end = item.endPoint;
end.X += 1;
allOccurencesSelectionStart.SetCharacterPosition(start);
allOccurencesSelectionEnd.SetCharacterPosition(end);
List <Rect> findSelections = CalculateRectangles(allOccurencesSelectionStart, allOccurencesSelectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, findSelections, Colors.Yellow);
}
int searchIndex = textEditorCanvas.TextEditorCore.CurrentTextBuffer.CurrentSearchIndex;
if (searchResults.Count != 0 && searchIndex != -1)
{
FindPosition currentPosition = searchResults[searchIndex];
System.Drawing.Point startPoint = currentPosition.startPoint;
System.Drawing.Point endPoint = currentPosition.endPoint;
endPoint.X += 1;
if (startPoint.X == 0 && endPoint.X == 0 &&
startPoint.Y == 0 && endPoint.Y == 0)
{
}
else
{
currentOccurenceSelectionStart.SetCharacterPosition(startPoint);
currentOccurenceSelectionEnd.SetCharacterPosition(endPoint);
List <Rect> currentOccurenceSelections = CalculateRectangles(currentOccurenceSelectionStart, currentOccurenceSelectionEnd, renderParams.firstVisibleLine);
RenderRectangles(context, currentOccurenceSelections, Colors.Orange);
}
}
}
context.Close();
return(drawingVisual);
}
protected override DrawingVisual RenderCore(RenderParameters renderParams)
{
if (null == drawingVisual)
{
drawingVisual = new DrawingVisual();
}
if (null == currentScript)
{
return(drawingVisual); // There's nothing here yet.
}
// Even when a line is half shown, we draw it in full.
renderParams.maxVisibleLines = renderParams.maxVisibleLines + 1;
ITextBuffer textBuffer = currentScript.GetTextBuffer();
int lineCount = textBuffer.GetLineCount();
lineCount = ((0 == lineCount) ? 1 : lineCount);
if (lineCount > renderParams.maxVisibleLines)
{
lineCount = renderParams.maxVisibleLines;
}
int lastVisibleLine = renderParams.firstVisibleLine + lineCount;
DrawingContext context = drawingVisual.RenderOpen();
double columnHeight = renderParams.maxVisibleLines * Configurations.FontDisplayHeight;
// BreakpointIcon Rectangle
Rect breakpointRectangle = new Rect(0, 0, Configurations.BreakpointColumnWidth, columnHeight);
SolidColorBrush breakpointRectangleBrush = new SolidColorBrush(UIColors.BreakpointColor);
context.DrawRectangle(breakpointRectangleBrush, null, breakpointRectangle);
// Line Number Rectangle
double lineColumnStart = Configurations.LineNumberColumnStart;
double lineColumnWidth = Configurations.LineNumberColumnWidth;
Rect numberRectangle = new Rect(lineColumnStart, 0, lineColumnWidth, columnHeight);
SolidColorBrush lineColumnBrush = new SolidColorBrush(UIColors.LineColumnBrushColor);
context.DrawRectangle(lineColumnBrush, null, numberRectangle);
//Shadow Lines
double halfShadowWidth = Configurations.ShadowWidth / 2;
double start = Configurations.LineNumberColumnEnd;
Point startPointDark = new Point(start, 0);
Point startPointLight = new Point(start + halfShadowWidth, 0);
Point endPointDark = new Point(start, columnHeight);
Point endPointLight = new Point(start + halfShadowWidth, columnHeight);
SolidColorBrush shadowDarkBrush = new SolidColorBrush(UIColors.ShadowDarkColor);
SolidColorBrush shadowLightBrush = new SolidColorBrush(UIColors.ShadowLightColor);
Pen darkPen = new Pen(shadowDarkBrush, halfShadowWidth);
Pen lightPen = new Pen(shadowLightBrush, halfShadowWidth);
context.DrawLine(darkPen, startPointDark, endPointDark);
context.DrawLine(lightPen, startPointLight, endPointLight);
double textColumnRightEdge = Configurations.LineNumberColumnStart +
lineColumnWidth - Configurations.LineNumberColumnPadding;
Point point = new Point(textColumnRightEdge, 0);
Typeface typeface = new Typeface(Configurations.FontFace);
for (int index = renderParams.firstVisibleLine + 1; index <= lastVisibleLine; index++)
{
FormattedText formattedtext = new FormattedText(index.ToString(), CultureInfo.GetCultureInfo("en-US"),
FlowDirection.LeftToRight, typeface, Configurations.FontHeight, Brushes.Gray);
formattedtext.TextAlignment = TextAlignment.Right;
context.DrawText(formattedtext, point);
point.Y = point.Y + Configurations.FontDisplayHeight;
}
RenderBreakpoints(context, renderParams.firstVisibleLine, lastVisibleLine);
HighlightCurrentLine(context, renderParams.firstVisibleLine, lastVisibleLine);
RenderInlineIcons(context, renderParams.firstVisibleLine, lastVisibleLine);
context.Close();
return(drawingVisual);
}
