コード例 #1
0
		static void HighlightSearchResults (TextLayout layout, string search, Color foreground, Color background)
		{
			string text = null;
			if (layout != null) {
				text = layout.Text;
				layout.ClearAttributes ();
			}
			if (string.IsNullOrEmpty (text) || string.IsNullOrEmpty (search))
				return;
			int index = 0;
			while ((index = text.IndexOf (search, index, StringComparison.OrdinalIgnoreCase)) > -1) {
				layout.SetForeground (foreground, index, search.Length);
				layout.SetBackground (background, index, search.Length);
				index++;
			}
		}
コード例 #2
0
        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);
        }
コード例 #3
0
        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.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);
        }