private void DrawString(PageText pt, Xwt.Drawing.Context g, Xwt.Rectangle r)
{
StyleInfo si = pt.SI;
string s = pt.Text;
g.Save();
layout = new Xwt.Drawing.TextLayout(g);
layout.Font = g.Font;
float fontsize = (si.FontSize * 72 / 96);
layout.Font.WithFamily(si.GetFontFamily().Name);
layout.Font.WithPixelSize(fontsize * PixelsX(1));
if (si.FontStyle == FontStyleEnum.Italic)
layout.Font.WithStyle(Xwt.Drawing.FontStyle.Italic);
switch (si.FontWeight)
{
case FontWeightEnum.Bold:
case FontWeightEnum.Bolder:
case FontWeightEnum.W500:
case FontWeightEnum.W600:
case FontWeightEnum.W700:
case FontWeightEnum.W800:
case FontWeightEnum.W900:
layout.Font.WithWeight(Xwt.Drawing.FontWeight.Bold);
break;
}
// TODO: Fix Alignment
//switch (si.TextAlign)
//{
// case TextAlignEnum.Right:
// layout.Alignment = Pango.Alignment.Right;
// break;
// case TextAlignEnum.Center:
// layout.Alignment = Pango.Alignment.Center;
// break;
// case TextAlignEnum.Left:
// default:
// layout.Alignment = Pango.Alignment.Left;
// break;
//}
// TODO: Fix with
//layout.Width = Pango.Units.FromPixels((int)(r.Width - si.PaddingLeft - si.PaddingRight - 2));
layout.Text = s;
//Xwt.Rectangle logical;
// Xwt.Rectangle ink;
// TODO: Fix
//layout.GetExtents(out ink, out logical);
double height = 12; // logical.Height / Pango.Scale.PangoScale;
double y = 0;
switch (si.VerticalAlign)
{
case VerticalAlignEnum.Top:
y = r.Y + si.PaddingTop;
break;
case VerticalAlignEnum.Middle:
y = r.Y + (r.Height - height) / 2;
break;
case VerticalAlignEnum.Bottom:
y = r.Y + (r.Height - height) - si.PaddingBottom;
break;
}
// draw the background
DrawBackground(g, r, si);
Xwt.Rectangle box = new Xwt.Rectangle(
r.X + si.PaddingLeft + 1,
y,
r.Width,
r.Height);
Xwt.Drawing.Color sicolor = XwtColor.SystemColorToXwtColor(si.Color);
g.SetColor(sicolor);
g.MoveTo(box.X, box.Y);
g.DrawTextLayout(layout, box.X, box.Y);
g.Restore();
}
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);
}
void DrawGradientButton(Xwt.Drawing.Context G, GradientButton B)
{
DrawingPath P = new DrawingPath();
P.Rectangle(new Xwt.Rectangle(B.Position, B.Size));
LinearGradient gr;
G.AppendPath(P);
Pattern pat = gr = new LinearGradient(B.Position.X, B.Position.Y, B.Position.X + B.Size.Width, B.Position.Y + B.Size.Height);
gr.AddColorStop(0, B.Color.BlendWith(Colors.White, 0.8));
gr.AddColorStop(0.5, B.Color);
gr.AddColorStop(1, B.Color.BlendWith(Colors.White, 0.8));
G.Pattern = pat;
G.Fill();
G.AppendPath(P);
G.SetColor(Xwt.Drawing.Colors.Black);
G.SetLineWidth(1);
G.Stroke();
TextLayout L = new TextLayout()
{
Font = B.Font,
Text = B.Text
};
Size TextSize = new Size(0.6 * L.Font.Size * L.Text.Count(), L.Font.Size);
G.DrawTextLayout(L, new Xwt.Point(B.Position.X + B.Size.Width / 2 - TextSize.Width / 2, B.Position.Y + B.Size.Height / 2 - TextSize.Height / 2));
}
protected override void OnDraw(Xwt.Drawing.Context ctx, Rectangle dirtyRect)
{
var w = System.Diagnostics.Stopwatch.StartNew();
base.OnDraw(ctx, dirtyRect);
// char size
var charSize = new TextLayout(this) { Text = "X", Font = font }.GetSize();
double charWidth = CharWidth = charSize.Width;
double charHeight = CharHeight = charSize.Height;
// scroll bars
updateScrollBars();
// calculations
int start = Math.Max(0, (int)(Source.ViewOffset.Y / charHeight));
int end = Math.Min(Source.Count, (int)((Source.ViewOffset.Y + Size.Height) / charHeight));
double lineNrWidth = ((int)Math.Log10(Source.Count) + 2) * CharWidth;
TextXOffset = lineNrWidth - Source.ViewOffset.X;
// selection
Range selection = Source.Selection;
bool hasSelection = !selection.IsEmpty;
bool isRectSelection = selection.Type == SelectionType.Rectangular;
// text
for (int i = start; i < end; i++)
{
Line line = Source[i];
string text = line.GetString();
if (hasSelection)
{
if (i >= selection.Start.Y && i <= selection.End.Y)
{
ctx.SetColor(Colors.LightSkyBlue);
if (isRectSelection)
{
ctx.Rectangle(selection.Start.X * charWidth + lineNrWidth - Source.ViewOffset.X,
(i * charHeight) - Source.ViewOffset.Y,
Math.Abs(selection.End.X - selection.Start.X) * charWidth,
charHeight);
ctx.Fill();
}
else
{
if (selection.Start.Y == selection.End.Y)
{
ctx.Rectangle(selection.Start.X * charWidth + TextXOffset, (i * charHeight) - Source.ViewOffset.Y, (selection.End.X - selection.Start.X) * charWidth + 2, charHeight);
}
else
{
if (i == selection.Start.Y)
ctx.Rectangle(selection.Start.X * charWidth + TextXOffset, (i * charHeight) - Source.ViewOffset.Y, (Source[i].Count - selection.Start.X) * charWidth + 2, charHeight);
else if (i == selection.End.Y)
ctx.Rectangle(TextXOffset, (i * charHeight) - Source.ViewOffset.Y, selection.End.X * charWidth + 2, charHeight);
else
ctx.Rectangle(TextXOffset, (i * charHeight) - Source.ViewOffset.Y, Source[i].Count * charWidth + 2, charHeight);
ctx.Fill();
}
}
}
}
//ctx.SetColor(Colors.Black);
//var layout = new TextLayout(this)
//{
// Text = text,
// Font = font,
//};
//ctx.DrawTextLayout(layout, -Source.ViewOffset.X + lineNrWidth, (i * charHeight) - Source.ViewOffset.Y);
}
for (int ic = 0; ic < colors.Length; ic++)
{
ctx.SetColor(colors[ic]);
CharpStyle style = (CharpStyle)ic;
StringBuilder builder = new StringBuilder(1024);
bool draw = false;
for (int y = start; y < end; y++)
{
Line line = Source[y];
for (int x = 0; x < line.Count; x++)
{
char c = line[x].Char;
if (c != ' ' && (line[x].Style & CharpStyle.ColorAll) == style)
{
if (c == '\t')
builder.Append(' ');
else
{
builder.Append(line[x].Char);
draw = true;
}
}
else
builder.Append(' ');
}
builder.AppendLine(" ");
}
TextLayout layout = new TextLayout(this)
{
Text = builder.ToString(),
Font = font,
};
if (draw)
ctx.DrawTextLayout(layout, TextXOffset, 0);
}
// line left
ctx.SetColor(Colors.LightGray);
ctx.Rectangle(0, 0, lineNrWidth, Size.Height);
ctx.Fill();
// line numbers, markers
for (int i = start; i < end; i++)
{
ctx.SetColor(Colors.Black);
ctx.DrawTextLayout(new TextLayout(this) { Text = (i + 1).ToString(), Font = font }, 0, (i * charHeight) - Source.ViewOffset.Y);
if ((Source[i].LineStyle & LineStyle.Unsaved) == LineStyle.Unsaved)
{
ctx.SetColor(Colors.Red);
ctx.Rectangle(TextXOffset - charWidth / 2 - 1, (i * charHeight) - Source.ViewOffset.Y, 2, charHeight);
ctx.Fill();
}
}
// caret
Loc caret = Source.GetSanitizedLoc(Source.CaretPosition);
ctx.Rectangle((int)(charWidth * caret.X - Source.ViewOffset.X + lineNrWidth), (int)(charHeight * caret.Y - Source.ViewOffset.Y), 2, charHeight);
ctx.SetColor(Colors.Red);
ctx.Fill();
// stopwatch
w.Stop();
//Console.WriteLine("Drawing: " + w.Elapsed.TotalMilliseconds);
}