public SetForeground ( Color color, int startIndex, int count ) : void | ||
color | Color | The color of the text. |
startIndex | int | Start index of the first character to apply the foreground color to. |
count | int | The number of characters to apply the foreground color to. |
return | void |
int DrawLinePortion(Context cr, ChunkStyle style, TextLayout layout, DocumentLine line, int visualOffset, int logicalLength) { int logicalColumn = line.GetLogicalColumn(editor, visualOffset); int logicalEndColumn = logicalColumn + logicalLength; int visualEndOffset = line.GetVisualColumn(editor, logicalEndColumn); int visualLength = visualEndOffset - visualOffset; int indexOffset = visualOffset - 1; layout.SetFontStyle(style.FontStyle, indexOffset, visualLength); layout.SetFontWeight(style.FontWeight, indexOffset, visualLength); if (style.Underline) layout.SetUnderline(indexOffset, visualLength); layout.SetForeground(style.Foreground, indexOffset, visualLength); return visualEndOffset; }
public virtual void Texts(Xwt.Drawing.Context ctx, double x, double y) { ctx.Save (); ctx.Translate (x, y); ctx.SetColor (Colors.Black); var col1 = new Rectangle (); var col2 = new Rectangle (); var text = new TextLayout (); text.Font = this.Font.WithSize (24); Console.WriteLine (text.Font.Size); // first text text.Text = "Lorem ipsum dolor sit amet,"; var size1 = text.GetSize (); col1.Width = size1.Width; col1.Height += size1.Height + 10; ctx.DrawTextLayout (text, 0, 0); // proofing width; test should align with text above ctx.SetColor (Colors.DarkMagenta); text.Text = "consetetur sadipscing elitr, sed diam nonumy"; text.Width = col1.Width; var size2 = text.GetSize (); ctx.DrawTextLayout (text, 0, col1.Bottom); col1.Height += size2.Height + 10; ctx.SetColor (Colors.Black); // proofing scale, on second col ctx.Save (); ctx.SetColor (Colors.Red); col2.Left = col1.Right + 10; text.Text = "eirmod tempor invidunt ut."; var scale = 1.2; text.Width = text.Width / scale; var size3 = text.GetSize (); col2.Height = size3.Height * scale; col2.Width = size3.Width * scale + 5; ctx.Scale (scale, scale); ctx.DrawTextLayout (text, col2.Left / scale, col2.Top / scale); ctx.Restore (); // proofing heigth, on second col ctx.Save (); ctx.SetColor (Colors.DarkCyan); text.Text = "Praesent ac lacus nec dolor pulvinar feugiat a id elit."; var size4 = text.GetSize (); text.Height = size4.Height / 2; text.Trimming=TextTrimming.WordElipsis; ctx.DrawTextLayout (text, col2.Left, col2.Bottom + 5); ctx.SetLineWidth (1); ctx.SetColor (Colors.Blue); ctx.Rectangle (new Rectangle (col2.Left, col2.Bottom + 5, text.Width, text.Height)); ctx.Stroke(); ctx.Restore (); // drawing col line ctx.SetLineWidth (1); ctx.SetColor (Colors.Black.WithAlpha (.5)); ctx.MoveTo (col1.Right + 5, col1.Top); ctx.LineTo (col1.Right + 5, col1.Bottom); ctx.Stroke (); ctx.MoveTo (col2.Right + 5, col2.Top); ctx.LineTo (col2.Right + 5, col2.Bottom); ctx.Stroke (); ctx.SetColor (Colors.Black); // proofing rotate, and printing size to see the values ctx.Save (); text.Font = this.Font.WithSize (10); text.Text = string.Format ("Size 1 {0}\r\nSize 2 {1}\r\nSize 3 {2} Scale {3}", size1, size2, size3, scale); text.Width = -1; // this clears textsize text.Height = -1; ctx.Rotate (5); // maybe someone knows a formula with angle and textsize to calculyte ty var ty = 30; ctx.DrawTextLayout (text, ty, col1.Bottom + 10); ctx.Restore (); // scale example here: ctx.Restore (); TextLayout tl0 = new TextLayout (this); tl0.Font = this.Font.WithSize (10); tl0.Text = "This text contains attributes."; tl0.SetUnderline ( 0, "This".Length); tl0.SetForeground (new Color (0, 1.0, 1.0), "This ".Length, "text".Length); tl0.SetBackground (new Color (0, 0, 0), "This ".Length, "text".Length); tl0.SetFontWeight (FontWeight.Bold, "This text ".Length, "contains".Length); tl0.SetFontStyle (FontStyle.Italic, "This text ".Length, "contains".Length); tl0.SetStrikethrough ("This text contains ".Length, "attributes".Length); ctx.SetColor(Colors.DarkGreen); ctx.DrawTextLayout (tl0, col2.Left, col2.Bottom + 100); // Text boces y = 180; // Without wrapping TextLayout tl = new TextLayout (this); tl.Text = "Stright text"; DrawText (ctx, tl, ref y); // With wrapping tl = new TextLayout (this); tl.Text = "The quick brown fox jumps over the lazy dog"; tl.Width = 100; DrawText (ctx, tl, ref y); // With blank lines tl = new TextLayout (this); tl.Text = "\nEmpty line above\nLine break above\n\nEmpty line above\n\n\nTwo empty lines above\nEmpty line below\n"; tl.Width = 200; DrawText (ctx, tl, ref y); }
internal override void Apply(TextLayout la) { la.SetForeground (Color, StartIndex, Count); }