protected override LayoutWrapper RenderLine (long line)
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
StringBuilder sb = new StringBuilder ();
long startOffset = line * Editor.BytesInRow;
long endOffset = System.Math.Min (startOffset + Editor.BytesInRow, Data.Length);
byte[] lineBytes = Data.GetBytes (startOffset, (int)(endOffset - startOffset));
for (int i = 0; i < lineBytes.Length; i++) {
byte b = lineBytes[i];
char ch = (char)b;
if (b < 128 && (Char.IsLetterOrDigit (ch) || Char.IsPunctuation (ch))) {
sb.Append (ch);
} else {
sb.Append (".");
}
}
layout.Text = sb.ToString ();
Margin.LayoutWrapper result = new LayoutWrapper (layout);
if (Data.IsSomethingSelected) {
ISegment selection = Data.MainSelection.Segment;
HandleSelection (selection.Offset, selection.EndOffset, startOffset, endOffset, null, delegate(long start, long end) {
result.Layout.SetForeground (Style.Selection, (int)(start - startOffset), (int)(end - start));
result.Layout.SetBackground (Style.SelectionBg, (int)(start - startOffset), (int)(end - start));
});
}
return result;
}
protected override LayoutWrapper RenderLine (long line)
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
layout.Text = string.Format ("{0:X}", line * Editor.BytesInRow);
return new LayoutWrapper (layout);
}
protected override void OnDraw(Context ctx, Rectangle dirtyRect)
{
// Line arround
ctx.SetColor(Colors.DarkGray);
// Drive line arround
ctx.Rectangle(Bounds);
ctx.Fill();
ctx.SetColor(Colors.Gray);
ctx.Rectangle(Bounds.Inflate(-margin, -margin));
ctx.Fill();
// Draw image
ctx.DrawImage(Image.FromResource(Logo), 5.0, 5.0);
// Draw text
ctx.SetColor(Colors.White);
TextLayout _layout = new TextLayout();
_layout.Font = Font.WithSize(22);
_layout.Text = Label;
_layout.SetFontWeight(FontWeight.Bold, 0, Label.Length);
// Cocoa layouts
ctx.DrawTextLayout(_layout, 45, ((Config.Cocoa || Config.Gtk) ? 5 : 2));
}
//public void SetFont (object backend, Xwt.Drawing.Font font) {
// var gc = (GdiContext) backend;
// gc.Font = font.ToGdi ();
//}
public override void DrawTextLayout(object backend, Xwt.Drawing.TextLayout layout, double x, double y)
{
if (layout.Text == null)
{
return;
}
var gc = (GdiContext)backend;
var tl = (GdiTextLayoutBackend)Toolkit.GetBackend(layout);
var font = tl.Font.ToGdi();
var w = layout.Width;
var h = layout.Height;
SD.Drawing2D.GraphicsPath path = null;
var onPath = (gc.ScaledRotated(gc.Graphics.Transform) || gc.ScaledOrRotated);
if (w != -1 || h != -1)
{
var size = tl.Size;
w = w == -1 ? size.Width : w;
h = h == -1 ? size.Height : h;
var rect = new System.Drawing.RectangleF((float)x, (float)y, (float)w, (float)h);
if (onPath)
{
path = gc.TextLayoutPath(font, (p, fontSize) =>
p.AddString(tl.Text, font.FontFamily, (int)font.Style, fontSize, rect, tl.Format));
}
else
{
gc.Graphics.DrawString(tl.Text, font, gc.Brush, rect, tl.Format);
}
}
else
{
var at = new System.Drawing.PointF((float)x, (float)y);
if (onPath)
{
path = gc.TextLayoutPath(font, (p, fontSize) =>
p.AddString(tl.Text, font.FontFamily, (int)font.Style, fontSize, at, tl.Format));
}
else
{
gc.Graphics.DrawString(tl.Text, font, gc.Brush, at, tl.Format);
}
}
if (path != null)
{
var s = gc.Graphics.SetQuality(GdiConverter.DrawTextHighQuality);
var brush = new SD.SolidBrush(gc.Color);
gc.Graphics.FillPath(brush, path);
brush.Dispose();
path.Dispose();
gc.Graphics.SetQuality(s);
}
}
internal protected override void OptionsChanged ()
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
layout.Text = ".";
// int height;
charWidth = layout.GetSize ().Width;
layout.Dispose ();
}
internal protected override void OptionsChanged ()
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
layout.Text = string.Format ("0{0:X}", Data.Length) + "_";
// int height;
width = layout.GetSize ().Width;
layout.Dispose ();
}
protected internal override void Draw(Context cr, Xwt.Rectangle area, DocumentLine line, int lineNumber, double x, double y, double height)
{
if (line != null)
{
TextLayout layout;
if (!layoutDict.TryGetValue(line, out layout))
{
var mode = editor.Document.SyntaxMode;
var style = SyntaxModeService.DefaultColorStyle;
var chunks = GetCachedChunks(mode, editor.Document, style, line, line.Offset, line.Length);
layout = new TextLayout();
layout.Font = editor.Options.EditorFont;
string lineText = editor.Document.GetLineText(lineNumber);
var stringBuilder = new StringBuilder(lineText.Length);
int currentVisualColumn = 1;
for (int i = 0; i < lineText.Length; ++i)
{
char chr = lineText[i];
if (chr == '\t')
{
int length = GetNextTabstop(editor, currentVisualColumn) - currentVisualColumn;
stringBuilder.Append(' ', length);
currentVisualColumn += length;
}
else
{
stringBuilder.Append(chr);
if (!char.IsLowSurrogate(chr))
{
++currentVisualColumn;
}
}
}
layout.Text = stringBuilder.ToString();
int visualOffset = 1;
foreach (var chunk in chunks)
{
var chunkStyle = style.GetChunkStyle(chunk);
visualOffset = DrawLinePortion(cr, chunkStyle, layout, line, visualOffset, chunk.Length);
}
//layoutDict[line] = layout;
}
cr.DrawTextLayout(layout, x, y);
if (editor.CaretVisible && editor.Caret.Line == lineNumber)
{
cr.SetColor(Colors.Black);
cr.Rectangle(x + ColumnToX(line, editor.Caret.Column), y, caretWidth, LineHeight);
cr.Fill();
}
}
}
void UpdateStyle()
{
if (layout != null)
{
layout.Dispose();
}
layout = new TextLayout(this);
layout.Trimming = TextTrimming.Word;
}
public LogLevelChooser(LogLevel selectedLogLevel)
{
SelectedLogLevel = selectedLogLevel;
// prerender
string[] logNames = Enum.GetNames(typeof(LogLevel));
int length = logNames.Length;
renderedImage = new Image[length];
using (TextLayout text = new TextLayout()) {
for (int i = 0; i < length; i++) {
text.Text = logNames[i];
Size size = text.GetSize();
using (ImageBuilder ib = new ImageBuilder(size.Width + size.Height*2 + 3, size.Height)) {
Color color = Color.FromName(Log.LevelToColorString((LogLevel) i));
Draw(ib.Context, (LogLevel) i, color);
renderedImage[i] = ib.ToBitmap();
Button button = new Button { Image = renderedImage[i], ImagePosition = ContentPosition.Left };
button.HorizontalPlacement = WidgetPlacement.Start;
button.Margin = 0;
button.ExpandHorizontal = true;
button.Style = ButtonStyle.Flat;
buttons.PackStart(button, true, true);
button.CanGetFocus = false;
button.Tag = i;
button.Clicked += OnLogChange;
windowHeight += size.Height * 2;
}
}
}
// hide window on lost fokus
buttons.CanGetFocus = true;
buttons.LostFocus += delegate {
if (menuHide != null) {
menuHide(this, EventArgs.Empty);
}
popupWindow.Hide();
};
buttons.ButtonPressed += delegate {
// do nothing
// workaround to propagate event to each button
};
buttons.Spacing = 0;
popupWindow.Padding = 0;
popupWindow.ShowInTaskbar = false;
popupWindow.Decorated = false;
popupWindow.Content = buttons;
}
internal protected override void OptionsChanged ()
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
layout.Text = "!";
// int tmp;
this.marginWidth = layout.GetSize ().Height;
marginWidth *= 12;
marginWidth /= 10;
layout.Dispose ();
}
protected override void OnDraw (Context ctx, Rectangle cellArea)
{
PackageViewModel packageViewModel = GetValue (PackageField);
if (packageViewModel == null) {
return;
}
FillCellBackground (ctx);
UpdateTextColor (ctx);
DrawCheckBox (ctx, packageViewModel, cellArea);
DrawPackageImage (ctx, cellArea);
double packageIdWidth = cellArea.Width - packageDescriptionPadding.HorizontalSpacing - packageDescriptionLeftOffset;
// Package download count.
if (packageViewModel.HasDownloadCount) {
var downloadCountTextLayout = new TextLayout ();
downloadCountTextLayout.Text = packageViewModel.GetDownloadCountOrVersionDisplayText ();
Size size = downloadCountTextLayout.GetSize ();
Point location = new Point (cellArea.Right - packageDescriptionPadding.Right, cellArea.Top + packageDescriptionPadding.Top);
Point downloadLocation = location.Offset (-size.Width, 0);
ctx.DrawTextLayout (downloadCountTextLayout, downloadLocation);
packageIdWidth = downloadLocation.X - cellArea.Left - packageIdRightHandPaddingWidth - packageDescriptionPadding.HorizontalSpacing - packageDescriptionLeftOffset;
}
// Package Id.
var packageIdTextLayout = new TextLayout ();
packageIdTextLayout.Font = packageIdTextLayout.Font.WithSize (12);
packageIdTextLayout.Markup = packageViewModel.GetNameMarkup ();
packageIdTextLayout.Trimming = TextTrimming.WordElipsis;
Size packageIdTextSize = packageIdTextLayout.GetSize ();
packageIdTextLayout.Width = packageIdWidth;
ctx.DrawTextLayout (
packageIdTextLayout,
cellArea.Left + packageDescriptionPadding.Left + packageDescriptionLeftOffset,
cellArea.Top + packageDescriptionPadding.Top);
// Package description.
var descriptionTextLayout = new TextLayout ();
descriptionTextLayout.Font = descriptionTextLayout.Font.WithSize (11);
descriptionTextLayout.Width = cellArea.Width - packageDescriptionPadding.HorizontalSpacing - packageDescriptionLeftOffset;
descriptionTextLayout.Height = cellArea.Height - packageIdTextSize.Height - packageDescriptionPadding.VerticalSpacing;
descriptionTextLayout.Text = packageViewModel.Summary;
descriptionTextLayout.Trimming = TextTrimming.Word;
ctx.DrawTextLayout (
descriptionTextLayout,
cellArea.Left + packageDescriptionPadding.Left + packageDescriptionLeftOffset,
cellArea.Top + packageIdTextSize.Height + packageDescriptionPaddingHeight + packageDescriptionPadding.Top);
}
protected override void OnDraw (Context ctx, Rectangle dirtyRect)
{
base.OnDraw (ctx, dirtyRect);
ctx.Rectangle (0, 0, Size.Width, Size.Height);
ctx.SetColor (Colors.LightGray);
ctx.Fill ();
ctx.SetColor (Colors.Black);
using (var layout = new TextLayout (this))
{
layout.Text = text;
ctx.DrawTextLayout (layout, new Point (0, 20));
}
}
protected override LayoutWrapper RenderLine (long line)
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
StringBuilder sb = new StringBuilder ();
long startOffset = line * Editor.BytesInRow;
long endOffset = System.Math.Min (startOffset + Editor.BytesInRow, Data.Length);
byte[] lineBytes = Data.GetBytes (startOffset, (int)(endOffset - startOffset));
switch (Editor.Options.StringRepresentationType) {
case StringRepresentationTypes.ASCII:
for (int i = 0; i < lineBytes.Length; i++) {
byte b = lineBytes [i];
char ch = (char)b;
if (!char.IsControl (ch)) {
sb.Append (ch);
} else {
sb.Append (".");
}
}
break;
case StringRepresentationTypes.UTF16:
for (int i = 0; i < lineBytes.Length - 1; i += 2) {
char ch = Encoding.Unicode.GetChars (lineBytes, i, 2) [0];
if (char.IsLetterOrDigit (ch) || char.IsWhiteSpace (ch) || char.IsSymbol (ch) || char.IsPunctuation (ch))
sb.Append (ch);
else
sb.Append (".");
}
break;
default:
throw new NotImplementedException (Editor.Options.StringRepresentationType.ToString ());
}
layout.Text = sb.ToString ();
Margin.LayoutWrapper result = new LayoutWrapper (layout);
if (Data.IsSomethingSelected) {
ISegment selection = Data.MainSelection.Segment;
HandleSelection (selection.Offset, selection.EndOffset, startOffset, endOffset, null, delegate(long start, long end) {
result.Layout.SetForeground (Style.Selection, (int)(start - startOffset)/2, (int)(end - start)/2);
result.Layout.SetBackground (Style.SelectionBg, (int)(start - startOffset)/2, (int)(end - start)/2);
});
}
return result;
}
protected internal override void Draw(Context cr, Xwt.Rectangle area, DocumentLine line, int lineNumber, double x, double y, double height)
{
if (lineNumber <= editor.Document.LineCount)
{
TextLayout layout;
if (!layoutDict.TryGetValue(lineNumber, out layout))
{
layout = new TextLayout();
layout.Font = editor.Options.EditorFont;
layout.Text = lineNumber.ToString();
layoutDict[lineNumber] = layout;
}
cr.SetColor(Colors.Black);
cr.DrawTextLayout(layout, x + leftPadding, y);
}
}
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;
}
protected override void OnDraw(Context ctx, Rectangle dirtyRect)
{
base.OnDraw(ctx, dirtyRect);
ctx.SetColor(Colors.Gray);
ctx.SetLineWidth(1);
ctx.RoundRectangle(0, Padding.Top / 2 - .5, Width - 4.5, Height - Padding.Bottom * 1.5, 3);
ctx.Stroke();
var tl = new TextLayout(this) { Text = title, Width = Width - Padding.Left - Padding.Right / 2 };
ctx.SetColor(Colors.White);
ctx.Rectangle(Padding.Left, 0, tl.GetSize().Width, Padding.Top);
ctx.Fill();
ctx.SetColor(Colors.Black);
ctx.DrawTextLayout(tl, Padding.Left, 0);
}
internal protected override void OptionsChanged ()
{
var layout = new TextLayout (Editor);
layout.Font = Editor.Options.Font;
string groupString = new string ('0', Editor.Options.GroupBytes * 2);
layout.Text = groupString + " ";
double lineHeight;
var sz = layout.GetSize ();
groupWidth = sz.Width;
lineHeight = sz.Height;
Data.LineHeight = lineHeight;
layout.Text = "00";
byteWidth = layout.GetSize ().Width;
layout.Dispose ();
// tabArray = new Pango.TabArray (1, true);
// tabArray.SetTab (0, Pango.TabAlign.Left, groupWidth);
}
public override void DrawTextLayout(object backend, TextLayout layout, double x, double y)
{
Pango.Layout pl = (Pango.Layout)WidgetRegistry.GetBackend (layout);
CairoContextBackend ctx = (CairoContextBackend)backend;
ctx.Context.MoveTo (x, y);
if (layout.Height <= 0) {
Pango.CairoHelper.ShowLayout (ctx.Context, pl);
} else {
var lc = pl.LineCount;
var scale = Pango.Scale.PangoScale;
double h = 0;
for (int i=0; i<lc; i++) {
var line = pl.Lines [i];
var ext = new Pango.Rectangle ();
var extl = new Pango.Rectangle ();
line.GetExtents (ref ext, ref extl);
h += (extl.Height / scale);
if (h > layout.Height)
break;
ctx.Context.MoveTo (x, y + h);
Pango.CairoHelper.ShowLayoutLine (ctx.Context, line);
}
}
}
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 DrawText(Context ctx, TextLayout tl, ref double y)
{
double x = 10;
var s = tl.GetSize ();
var rect = new Rectangle (x, y, s.Width, s.Height).Inflate (0.5, 0.5);
ctx.SetLineWidth (1);
ctx.SetColor (Colors.Blue);
ctx.Rectangle (rect);
ctx.Stroke ();
ctx.SetColor (Colors.Black);
ctx.DrawTextLayout (tl, x, y);
y += s.Height + 20;
}
/// <summary>
/// Draw a tick on the axis.
/// </summary>
/// <param name="ctx">The Drawing Context with on which to draw.</param>
/// <param name="w">The tick position in world coordinates.</param>
/// <param name="size">The size of the tick (in pixels)</param>
/// <param name="text">The text associated with the tick</param>
/// <param name="textOffset">The Offset to draw from the auto calculated position</param>
/// <param name="axisPhysMin">The minimum physical extent of the axis</param>
/// <param name="axisPhysMax">The maximum physical extent of the axis</param>
/// <param name="boundingBox">out: The bounding rectangle for the tick and tickLabel drawn</param>
/// <param name="labelOffset">out: offset from the axies required for axis label</param>
public virtual void DrawTick(
Context ctx,
double w,
double size,
string text,
Point textOffset,
Point axisPhysMin,
Point axisPhysMax,
out Point labelOffset,
out Rectangle boundingBox )
{
// determine physical location where tick touches axis.
Point tickStart = WorldToPhysical (w, axisPhysMin, axisPhysMax, true);
// determine offset from start point.
Point axisDir = Utils.UnitVector (axisPhysMin, axisPhysMax);
// rotate axisDir anti-clockwise by TicksAngle radians to get tick direction. Note that because
// the physical (pixel) origin is at the top left, a RotationTransform by a positive angle will
// be clockwise. Consequently, for anti-clockwise rotations, use cos(A-B), sin(A-B) formulae
double x1 = Math.Cos (TicksAngle) * axisDir.X + Math.Sin (TicksAngle) * axisDir.Y;
double y1 = Math.Cos (TicksAngle) * axisDir.Y - Math.Sin (TicksAngle) * axisDir.X;
// now get the scaled tick vector.
Point tickVector = new Point (TickScale * size * x1, TickScale * size * y1);
if (TicksCrossAxis) {
tickStart.X -= tickVector.X / 2;
tickStart.Y -= tickVector.Y / 2;
}
// and the end point [point off axis] of tick mark.
Point tickEnd = new Point (tickStart.X + tickVector.X, tickStart.Y + tickVector.Y);
// and draw it
ctx.SetLineWidth (1);
ctx.SetColor (LineColor);
ctx.MoveTo (tickStart.X+0.5, tickStart.Y+0.5);
ctx.LineTo (tickEnd.X+0.5, tickEnd.Y+0.5);
ctx.Stroke ();
// calculate bounds of tick.
double minX = Math.Min (tickStart.X, tickEnd.X);
double minY = Math.Min (tickStart.Y, tickEnd.Y);
double maxX = Math.Max (tickStart.X, tickEnd.X);
double maxY = Math.Max (tickStart.Y, tickEnd.Y);
boundingBox = new Rectangle (minX, minY, maxX-minX, maxY-minY);
// by default, label offset from axis is 0. TODO: revise this.
labelOffset = new Point (-tickVector.X, -tickVector.Y);
// ------------------------
// now draw associated text.
// **** TODO ****
// The following code needs revising. A few things are hard coded when
// they should not be. Also, angled tick text currently just works for
// the bottom x-axis. Also, it's a bit hacky.
if (text != "" && !HideTickText) {
TextLayout layout = new TextLayout ();
layout.Font = tickTextFontScaled;
layout.Text = text;
Size textSize = layout.GetSize ();
// determine the center point of the tick text.
double textCenterX;
double textCenterY;
// if text is at pointy end of tick.
if (!TickTextNextToAxis) {
// offset due to tick.
textCenterX = tickStart.X + tickVector.X*1.2;
textCenterY = tickStart.Y + tickVector.Y*1.2;
// offset due to text box size.
textCenterX += 0.5 * x1 * textSize.Width;
textCenterY += 0.5 * y1 * textSize.Height;
}
// else it's next to the axis.
else {
// start location.
textCenterX = tickStart.X;
textCenterY = tickStart.Y;
// offset due to text box size.
textCenterX -= 0.5 * x1 * textSize.Width;
textCenterY -= 0.5 * y1 * textSize.Height;
// bring text away from the axis a little bit.
textCenterX -= x1*(2.0+FontScale);
textCenterY -= y1*(2.0+FontScale);
}
// If tick text is angled..
if (TickTextAngle != 0) {
// determine the point we want to rotate text about.
Point textScaledTickVector = new Point (
TickScale * x1 * (textSize.Height/2),
TickScale * y1 * (textSize.Height/2) );
Point rotatePoint;
if (TickTextNextToAxis) {
rotatePoint = new Point (
tickStart.X - textScaledTickVector.X,
tickStart.Y - textScaledTickVector.Y);
}
else {
rotatePoint = new Point (
tickEnd.X + textScaledTickVector.X,
tickEnd.Y + textScaledTickVector.Y);
}
double actualAngle;
if (FlipTickText) {
double radAngle = TickTextAngle * Math.PI / 180;
rotatePoint.X += textSize.Width * Math.Cos (radAngle);
rotatePoint.Y += textSize.Width * Math.Sin (radAngle);
actualAngle = TickTextAngle + 180;
}
else {
actualAngle = TickTextAngle;
}
ctx.Save ();
ctx.Translate (rotatePoint.X, rotatePoint.Y);
ctx.Rotate (actualAngle);
Point [] recPoints = new Point [2];
recPoints[0] = new Point (0.0, -textSize.Height/2);
recPoints[1] = new Point (textSize.Width, textSize.Height);
ctx.TransformPoints (recPoints);
double t_x1 = Math.Min (recPoints[0].X, recPoints[1].X);
double t_x2 = Math.Max (recPoints[0].X, recPoints[1].X);
double t_y1 = Math.Min (recPoints[0].Y, recPoints[1].Y);
double t_y2 = Math.Max (recPoints[0].Y, recPoints[1].Y);
boundingBox = Rectangle.Union (boundingBox, new Rectangle (t_x1, t_y1, (t_x2-t_x1), (t_y2-t_y1)));
ctx.DrawTextLayout (layout, 0, -textSize.Height/2);
t_x2 -= tickStart.X;
t_y2 -= tickStart.Y;
t_x2 *= 1.25;
t_y2 *= 1.25;
labelOffset = new Point (t_x2, t_y2);
ctx.Restore ();
//ctx.Rectangle (boundingBox.X, boundingBox.Y, boundingBox.Width, boundingBox.Height);
//ctx.Stroke ();
}
else {
double bx1 = (textCenterX - textSize.Width/2);
double by1 = (textCenterY - textSize.Height/2);
double bx2 = textSize.Width;
double by2 = textSize.Height;
Rectangle drawRect = new Rectangle (bx1, by1, bx2, by2);
// ctx.Rectangle (drawRect);
boundingBox = Rectangle.Union (boundingBox, drawRect);
// ctx.Rectangle (boundingBox);
ctx.DrawTextLayout (layout, bx1, by1);
textCenterX -= tickStart.X;
textCenterY -= tickStart.Y;
textCenterX *= 2.3;
textCenterY *= 2.3;
labelOffset = new Point (textCenterX, textCenterY);
}
}
}
/// <summary>
/// Draw the Axis Label
/// </summary>
/// <param name="ctx>The Drawing Context with which to draw.</param>
/// <param name="offset">offset from axis. Should be calculated so as to make sure axis label misses tick labels.</param>
/// <param name="axisPhysicalMin">The physical position corresponding to the world minimum of the axis.</param>
/// <param name="axisPhysicalMax">The physical position corresponding to the world maximum of the axis.</param>
/// <returns>boxed Rectangle indicating bounding box of label. null if no label printed.</returns>
public object DrawLabel(Context ctx, Point offset, Point axisPhysicalMin, Point axisPhysicalMax)
{
if (Label != "") {
// first calculate any extra offset for axis label spacing.
double extraOffsetAmount = LabelOffset;
extraOffsetAmount += 2; // empirically determed - text was too close to axis before this.
if (AutoScaleText && LabelOffsetScaled) {
extraOffsetAmount *= FontScale;
}
// now extend offset.
double offsetLength = Math.Sqrt (offset.X*offset.X + offset.Y*offset.Y);
if (offsetLength > 0.01) {
double x_component = offset.X / offsetLength;
double y_component = offset.Y / offsetLength;
x_component *= extraOffsetAmount;
y_component *= extraOffsetAmount;
if (LabelOffsetAbsolute) {
offset.X = x_component;
offset.Y = y_component;
}
else {
offset.X += x_component;
offset.Y += y_component;
}
}
// determine angle of axis in degrees
double theta = Math.Atan2 (
axisPhysicalMax.Y - axisPhysicalMin.Y,
axisPhysicalMax.X - axisPhysicalMin.X);
theta = theta * 180.0 / Math.PI;
Point average = new Point (
(axisPhysicalMax.X + axisPhysicalMin.X)/2,
(axisPhysicalMax.Y + axisPhysicalMin.Y)/2);
ctx.Save ();
ctx.Translate (average.X + offset.X , average.Y + offset.Y); // this is done last.
ctx.Rotate (theta); // this is done first.
TextLayout layout = new TextLayout ();
layout.Font = labelFontScaled;
layout.Text = Label;
Size labelSize = layout.GetSize ();
//Draw label centered around zero.
ctx.DrawTextLayout (layout, -labelSize.Width/2, -labelSize.Height/2);
// now work out physical bounds of Rotated and Translated label.
Point [] recPoints = new Point [2];
recPoints[0] = new Point (-labelSize.Width/2, -labelSize.Height/2);
recPoints[1] = new Point ( labelSize.Width/2, labelSize.Height/2);
ctx.TransformPoints (recPoints);
double x1 = Math.Min (recPoints[0].X, recPoints[1].X);
double x2 = Math.Max (recPoints[0].X, recPoints[1].X);
double y1 = Math.Min (recPoints[0].Y, recPoints[1].Y);
double y2 = Math.Max (recPoints[0].Y, recPoints[1].Y);
ctx.Restore ();
// and return label bounding box.
return new Rectangle (x1, y1, (x2-x1), (y2-y1));
}
return null;
}
public void DrawTextLayout(TextLayout layout, double x, double y)
{
handler.DrawTextLayout(Backend, layout, x, y);
}
protected override Size OnGetRequiredSize ()
{
var layout = new TextLayout ();
layout.Text = "W";
layout.Font = layout.Font.WithScaledSize (0.9);
Size size = layout.GetSize ();
return new Size (CellWidth, size.Height * linesDisplayedCount + packageDescriptionPaddingHeight + packageDescriptionPadding.VerticalSpacing);
}
public override void DrawTextLayout(object backend, TextLayout layout, double x, double y)
{
CGContext ctx = ((CGContextBackend)backend).Context;
SetupContextForDrawing (ctx);
MacTextLayoutBackendHandler.Draw (ctx, Toolkit.GetBackend (layout), x, y);
}
/// <summary>
/// Draw The legend
/// </summary>
/// <param name="ctx">The Drawing Context with on which to draw</param>
/// <param name="position">The position of the top left of the axis.</param>
/// <param name="plots">Array of plot objects to appear in the legend.</param>
/// <param name="scale">if the legend is set to scale, the amount to scale by.</param>
/// <returns>bounding box</returns>
public Rectangle Draw(Context ctx, Point position, ArrayList plots, double scale )
{
// first of all determine the Font to use in the legend.
Font textFont;
if (AutoScaleText) {
textFont = font_.WithScaledSize (scale);
}
else {
textFont = font_;
}
ctx.Save ();
// determine max width and max height of label strings and
// count the labels.
int labelCount = 0;
int unnamedCount = 0;
double maxHt = 0;
double maxWd = 0;
TextLayout layout = new TextLayout ();
layout.Font = textFont;
for (int i=0; i<plots.Count; ++i) {
if (!(plots[i] is IPlot)) {
continue;
}
IPlot p = (IPlot)plots[i];
if (!p.ShowInLegend) {
continue;
}
string label = p.Label;
if (label == "") {
unnamedCount += 1;
label = "Series " + unnamedCount.ToString();
}
layout.Text = label;
Size labelSize = layout.GetSize ();
if (labelSize.Height > maxHt) {
maxHt = labelSize.Height;
}
if (labelSize.Width > maxWd) {
maxWd = labelSize.Width;
}
++labelCount;
}
bool extendingHorizontally = numberItemsHorizontally_ == -1;
bool extendingVertically = numberItemsVertically_ == -1;
// determine width in legend items count units.
int widthInItemCount = 0;
if (extendingVertically) {
if (labelCount >= numberItemsHorizontally_) {
widthInItemCount = numberItemsHorizontally_;
}
else {
widthInItemCount = labelCount;
}
}
else if (extendingHorizontally) {
widthInItemCount = labelCount / numberItemsVertically_;
if (labelCount % numberItemsVertically_ != 0)
widthInItemCount += 1;
}
else {
throw new NPlotException( "logic error in legend base" );
}
// determine height of legend in items count units.
int heightInItemCount = 0;
if (extendingHorizontally) {
if (labelCount >= numberItemsVertically_) {
heightInItemCount = numberItemsVertically_;
}
else {
heightInItemCount = labelCount;
}
}
else { // extendingVertically
heightInItemCount = labelCount / numberItemsHorizontally_;
if (labelCount % numberItemsHorizontally_ != 0)
heightInItemCount += 1;
}
double lineLength = 20;
double hSpacing = (int)(5.0f * scale);
double vSpacing = (int)(3.0f * scale);
double boxWidth = (int) ((float)widthInItemCount * (lineLength + maxWd + hSpacing * 2.0f ) + hSpacing);
double boxHeight = (int)((float)heightInItemCount * (maxHt + vSpacing) + vSpacing);
double totalWidth = boxWidth;
double totalHeight = boxHeight;
// draw box around the legend.
if (BorderStyle == BorderType.Line) {
ctx.SetColor (bgColor_);
ctx.Rectangle (position.X, position.Y, boxWidth, boxHeight);
ctx.FillPreserve ();
ctx.SetColor (borderColor_);
ctx.Stroke ();
}
else if (BorderStyle == BorderType.Shadow) {
double offset = (4.0 * scale);
Color shade = Colors.Gray;
shade.Alpha = 0.5;
ctx.SetColor (Colors.Gray);
ctx.Rectangle (position.X+offset, position.Y+offset, boxWidth, boxHeight);
ctx.Fill ();
ctx.SetColor (bgColor_);
ctx.Rectangle (position.X, position.Y, boxWidth, boxHeight);
ctx.FillPreserve ();
ctx.SetColor (borderColor_);
ctx.Stroke ();
totalWidth += offset;
totalHeight += offset;
}
/*
else if ( this.BorderStyle == BorderType.Curved )
{
// TODO. make this nice.
}
*/
else {
// do nothing.
}
// now draw entries in box..
labelCount = 0;
unnamedCount = 0;
int plotCount = -1;
for (int i=0; i<plots.Count; ++i) {
if (!(plots[i] is IPlot)) {
continue;
}
IPlot p = (IPlot)plots[i];
if (!p.ShowInLegend) {
continue;
}
plotCount += 1;
double xpos, ypos;
if (extendingVertically) {
xpos = plotCount % numberItemsHorizontally_;
ypos = plotCount / numberItemsHorizontally_;
}
else {
xpos = plotCount / numberItemsVertically_;
ypos = plotCount % numberItemsVertically_;
}
double lineXPos = (position.X + hSpacing + xpos * (lineLength + maxWd + hSpacing * 2.0));
double lineYPos = (position.Y + vSpacing + ypos * (vSpacing + maxHt));
p.DrawInLegend (ctx, new Rectangle (lineXPos, lineYPos, lineLength, maxHt));
double textXPos = lineXPos + hSpacing + lineLength;
double textYPos = lineYPos;
string label = p.Label;
if (label == "") {
unnamedCount += 1;
label = "Series " + unnamedCount.ToString();
}
layout.Text = label;
ctx.DrawTextLayout (layout, textXPos, textYPos);
++labelCount;
}
ctx.Restore ();
return new Rectangle (position.X, position.Y, totalWidth, totalHeight);
}
public void TextWordWrap()
{
// Transform is saved
InitBlank (100, 100);
var la = new TextLayout ();
la.Font = Font.FromName ("Arial 12");
la.Text = "One Two Three Four Five Six Seven Eight Nine";
la.Width = 90;
la.Trimming = TextTrimming.Word;
var s = la.GetSize ();
context.Rectangle (5.5, 5.5, s.Width, s.Height);
context.SetColor (Colors.Blue);
context.Stroke ();
context.SetColor (Colors.Black);
context.DrawTextLayout (la, 5, 5);
CheckImage ("TextWordWrap.png");
}
public void TextWithBlankLines()
{
// Transform is saved
InitBlank (50, 150);
var la = new TextLayout ();
la.Font = Font.FromName ("Arial 12");
la.Text = "\n\nHello\n\n\nWorld\n\n";
var s = la.GetSize ();
context.Rectangle (10.5, 10.5, s.Width, s.Height);
context.SetColor (Colors.Blue);
context.Stroke ();
context.SetColor (Colors.Black);
context.DrawTextLayout (la, 10, 10);
CheckImage ("TextWithBlankLines.png");
}
public override void DrawTextLayout(object backend, TextLayout layout, double x, double y)
{
var be = (GtkTextLayoutBackendHandler.PangoBackend)Toolkit.GetBackend (layout);
var pl = be.Layout;
CairoContextBackend ctx = (CairoContextBackend)backend;
ctx.Context.MoveTo (x, y);
if (layout.Height <= 0) {
Pango.CairoHelper.ShowLayout (ctx.Context, pl);
} else {
var lc = pl.LineCount;
var scale = Pango.Scale.PangoScale;
double h = 0;
var fe = ctx.Context.FontExtents;
var baseline = fe.Ascent / (fe.Ascent + fe.Descent);
for (int i=0; i<lc; i++) {
var line = pl.Lines [i];
var ext = new Pango.Rectangle ();
var extl = new Pango.Rectangle ();
line.GetExtents (ref ext, ref extl);
h += h == 0 ? (extl.Height / scale * baseline) : (extl.Height / scale);
if (h > layout.Height)
break;
ctx.Context.MoveTo (x, y + h);
Pango.CairoHelper.ShowLayoutLine (ctx.Context, line);
}
}
}
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));
}
public void DrawTextLayout(TextLayout layout, Point location)
{
handler.DrawTextLayout (Backend, layout, location.X, location.Y);
}
public void DrawTextLayout(TextLayout layout, Point location)
{
handler.DrawTextLayout(Backend, layout, location.X, location.Y);
}
public void DrawTextLayout(TextLayout layout, double x, double y)
{
handler.DrawTextLayout (Backend, layout, x, y);
}
internal void Draw(DrawingPathBackendHandler targetHandler, object ctx, VectorImageData cm)
{
int di = 0;
int ci = 0;
int ii = 0;
int ri = 0;
int oi = 0;
int imi = 0;
int ti = 0;
ContextBackendHandler handler = targetHandler as ContextBackendHandler;
DrawingPathBackendHandler pathHandler = targetHandler;
for (int n = 0; n < cm.Commands.Length; n++)
{
switch (cm.Commands [n])
{
case DrawingCommand.AppendPath:
var p = cm.Objects [oi++];
if (p is VectorImageData)
{
Draw(targetHandler, ctx, (VectorImageData)p);
}
else
{
pathHandler.AppendPath(ctx, p);
}
break;
case DrawingCommand.Arc:
pathHandler.Arc(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.ArcNegative:
pathHandler.ArcNegative(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Clip:
handler.Clip(ctx);
break;
case DrawingCommand.ClipPreserve:
handler.ClipPreserve(ctx);
break;
case DrawingCommand.ClosePath:
pathHandler.ClosePath(ctx);
break;
case DrawingCommand.CurveTo:
pathHandler.CurveTo(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.DrawImage2:
handler.DrawImage(ctx, cm.Images [imi++], cm.Rectangles [ri++], cm.Rectangles [ri++]);
break;
case DrawingCommand.DrawImage:
handler.DrawImage(ctx, cm.Images [imi++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.DrawTextLayout:
var lad = (TextLayoutData)cm.TextLayouts [ti++];
var la = new TextLayout(toolkit);
lad.InitLayout(la);
handler.DrawTextLayout(ctx, la, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Fill:
handler.Fill(ctx);
break;
case DrawingCommand.FillPreserve:
handler.FillPreserve(ctx);
break;
case DrawingCommand.LineTo:
pathHandler.LineTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.MoveTo:
pathHandler.MoveTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.NewPath:
handler.NewPath(ctx);
break;
case DrawingCommand.Rectangle:
pathHandler.Rectangle(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelCurveTo:
pathHandler.RelCurveTo(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelLineTo:
pathHandler.RelLineTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelMoveTo:
pathHandler.RelMoveTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Restore:
handler.Restore(ctx);
break;
case DrawingCommand.Rotate:
handler.Rotate(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.Save:
handler.Save(ctx);
break;
case DrawingCommand.Scale:
handler.Scale(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.SetColor:
handler.SetColor(ctx, cm.Colors [ci++]);
break;
case DrawingCommand.SetGlobalAlpha:
handler.SetGlobalAlpha(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.SetLineDash:
var off = cm.Doubles [di++];
var ds = new double [cm.Ints [ii++]];
for (int i = 0; i < ds.Length; i++)
{
ds [i] = cm.Doubles [di++];
}
handler.SetLineDash(ctx, off, ds);
break;
case DrawingCommand.SetLineWidth:
handler.SetLineWidth(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.SetPattern:
handler.SetPattern(ctx, cm.Objects [oi++]);
break;
case DrawingCommand.Stroke:
handler.Stroke(ctx);
break;
case DrawingCommand.StrokePreserve:
handler.StrokePreserve(ctx);
break;
case DrawingCommand.Translate:
handler.Translate(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.SetStyles:
handler.SetStyles(ctx, (StyleSet)cm.Objects [oi++]);
break;
}
}
}
public void InitLayout(TextLayout la)
{
if (Width != -1)
la.Width = Width;
if (Height != -1)
la.Height = Height;
if (Text != null)
la.Text = Text;
if (Font != null)
la.Font = Font;
if (TextTrimming != default(TextTrimming))
la.Trimming = TextTrimming;
if (Attributes != null) {
foreach (var at in Attributes)
la.AddAttribute (at);
}
}
