public void NSLayoutManager_DrawGlyphsForGlyphRange()
{
#if NET
manager.DrawGlyphs(new NSRange(0, 4), new CGPoint(10, 10));
#else
manager.DrawGlyphsForGlyphRange(new NSRange(0, 4), new CGPoint(10, 10));
#endif
}
public override void DrawRect(CGRect rect)
{
_drawRect = GetDrawRect(rect);
if (UseLayoutManager)
{
// DrawGlyphsForGlyphRange is the method we want to use here since DrawBackgroundForGlyphRange is intended for something different.
// While DrawBackgroundForGlyphRange will draw the background mark for specified Glyphs DrawGlyphsForGlyphRange will draw the actual Glyphs.
// Note: This part of the code is called only under very specific situations. For most of the scenarios DrawString is used to draw the text.
_layoutManager?.DrawGlyphsForGlyphRange(new NSRange(0, (nint)_layoutManager.NumberOfGlyphs), _drawRect.Location);
}
else
{
_attributedString?.DrawString(_drawRect, NSStringDrawingOptions.UsesLineFragmentOrigin);
}
}
public void Draw(CGContext ctx, CGColor foregroundColor, double x, double y)
{
bool tempForegroundSet = false;
// if no color attribute is set for the whole string,
// NSLayoutManager will use the default control foreground color.
// To override the default color we need to apply the current CGContext stroke color
// before all other attributes are set, otherwise it will remove all other foreground colors.
if (foregroundColor != null && !Attributes.Any(a => a is ColorTextAttribute && a.StartIndex == 0 && a.Count == Text.Length))
{
// FIXME: we need to find a better way to accomplish this without the need to reset all attributes.
ResetAttributes(NSColor.FromCGColor(foregroundColor));
tempForegroundSet = true;
}
ctx.SaveState();
NSGraphicsContext.GlobalSaveGraphicsState();
var nsContext = NSGraphicsContext.FromCGContext(ctx, true);
NSGraphicsContext.CurrentContext = nsContext;
using (var TextLayout = new NSLayoutManager())
{
TextLayout.AddTextContainer(TextContainer);
TextStorage.AddLayoutManager(TextLayout);
TextLayout.DrawBackgroundForGlyphRange(new NSRange(0, Text.Length), new CGPoint(x, y));
TextLayout.DrawGlyphsForGlyphRange(new NSRange(0, Text.Length), new CGPoint(x, y));
TextStorage.RemoveLayoutManager(TextLayout);
TextLayout.RemoveTextContainer(0);
}
// reset foreground color change
if (tempForegroundSet)
{
ResetAttributes();
}
NSGraphicsContext.GlobalRestoreGraphicsState();
ctx.RestoreState();
}
public override void DrawRect(CGRect rect)
{
_drawRect = GetDrawRect(rect);
_layoutManager?.DrawGlyphsForGlyphRange(new NSRange(0, (nint)_layoutManager.NumberOfGlyphs), _drawRect.Location);
}
public void NSLayoutManager_DrawGlyphsForGlyphRange()
{
manager.DrawGlyphsForGlyphRange(new NSRange(0, 4), new CGPoint(10, 10));
}