// --------------------------------------------------------------------
// Ctor and event handlers
// --------------------------------------------------------------------
public SyntaxHighlightBox()
{
InitializeComponent();
MaxLineCountInBlock = 100;
LineHeight = FontSize * 1.3;
totalLineCount = 1;
blocks = new List <InnerTextBlock>();
Loaded += (s, e) =>
{
renderCanvas = (DrawingControl)Template.FindName("PART_RenderCanvas", this);
lineNumbersCanvas = (DrawingControl)Template.FindName("PART_LineNumbersCanvas", this);
scrollViewer = (ScrollViewer)Template.FindName("PART_ContentHost", this);
var dpi = VisualTreeHelper.GetDpi(this);
lineNumbersCanvas.Width = GetFormattedTextWidth(string.Format("{0:0000}", totalLineCount), dpi) + 5;
scrollViewer.ScrollChanged += OnScrollChanged;
InvalidateBlocks(0);
InvalidateVisual();
};
SizeChanged += (s, e) =>
{
if (e.HeightChanged == false)
{
return;
}
var dpi = VisualTreeHelper.GetDpi(this);
UpdateBlocks(dpi);
InvalidateVisual();
};
TextChanged += (s, e) =>
{
totalLineCount = TextUtilities.GetLineCount(Text);
InvalidateBlocks(e.Changes.First().Offset);
InvalidateVisual();
};
}
// --------------------------------------------------------------------
// Ctor and event handlers
// --------------------------------------------------------------------
public SyntaxHighlightBox()
{
InitializeComponent();
MaxLineCountInBlock = 100;
LineHeight = FontSize * 1.3;
totalLineCount = 1;
blocks = new List<InnerTextBlock>();
Loaded += (s, e) =>
{
renderCanvas = (DrawingControl)Template.FindName("PART_RenderCanvas", this);
lineNumbersCanvas = (DrawingControl)Template.FindName("PART_LineNumbersCanvas", this);
scrollViewer = (ScrollViewer)Template.FindName("PART_ContentHost", this);
lineNumbersCanvas.Width = GetFormattedTextWidth(string.Format("{0:0000}", totalLineCount)) + 5;
scrollViewer.ScrollChanged += OnScrollChanged;
InvalidateBlocks(0);
InvalidateVisual();
};
SizeChanged += (s, e) =>
{
if (e.HeightChanged == false)
return;
UpdateBlocks();
InvalidateVisual();
};
TextChanged += (s, e) =>
{
totalLineCount = TextUtilities.GetLineCount(Text);
InvalidateBlocks(e.Changes.First().Offset);
InvalidateVisual();
};
}