internal void Draw()
{
if (!IsControlLaoded) return;
//No cache for you gauge :( kill and redraw please
foreach (var child in Canvas.Children.Cast<UIElement>()
.Where(x => !Equals(x, Stick) && !(x is AngularSection) && !(x is PieSlice)).ToArray())
Canvas.Children.Remove(child);
Wedge = Wedge > 360 ? 360 : (Wedge < 0 ? 0 : Wedge);
var fromAlpha = (360-Wedge)*.5;
var toAlpha = 360 - fromAlpha;
var d = ActualWidth < ActualHeight ? ActualWidth : ActualHeight;
Stick.Height = d*.5*.8;
Stick.Width = Stick.Height*.2;
Canvas.SetLeft(Stick, ActualWidth*.5 - Stick.Width*.5);
Canvas.SetTop(Stick, ActualHeight*.5 - Stick.Height*.9);
var ticksHi = d*.5;
var ticksHj = d*.47;
var labelsHj = d*.44;
foreach (var section in Sections)
{
PieSlice slice;
section.Owner = this;
if (!Slices.TryGetValue(section, out slice))
{
slice = new PieSlice();
Slices[section] = slice;
}
var p = (Canvas)section.Parent;
if (p != null) p.Children.Remove(section);
Canvas.Children.Add(section);
var ps = (Canvas)slice.Parent;
if (ps != null) ps.Children.Remove(slice);
Canvas.Children.Add(slice);
}
UpdateSections();
for (var i = FromValue; i <= ToValue; i += TicksStep)
{
var alpha = LinearInterpolation(fromAlpha, toAlpha, FromValue, ToValue, i) + 90;
var tick = new Line
{
X1 = ActualWidth*.5 + ticksHi*Math.Cos(alpha*Math.PI/180),
X2 = ActualWidth*.5 + ticksHj*Math.Cos(alpha*Math.PI/180),
Y1 = ActualHeight*.5 + ticksHi*Math.Sin(alpha*Math.PI/180),
Y2 = ActualHeight*.5 + ticksHj*Math.Sin(alpha*Math.PI/180)
};
Canvas.Children.Add(tick);
tick.SetBinding(Shape.StrokeProperty,
new Binding {Path = new PropertyPath(TicksForegroundProperty), Source = this});
tick.SetBinding(Shape.StrokeThicknessProperty,
new Binding { Path = new PropertyPath(TicksStrokeThicknessProperty), Source = this });
}
for (var i = FromValue; i <= ToValue; i += LabelsStep)
{
var alpha = LinearInterpolation(fromAlpha, toAlpha, FromValue, ToValue, i) + 90;
var tick = new Line
{
X1 = ActualWidth*.5 + ticksHi*Math.Cos(alpha*Math.PI/180),
X2 = ActualWidth*.5 + labelsHj*Math.Cos(alpha*Math.PI/180),
Y1 = ActualHeight*.5 + ticksHi*Math.Sin(alpha*Math.PI/180),
Y2 = ActualHeight*.5 + labelsHj*Math.Sin(alpha*Math.PI/180)
};
Canvas.Children.Add(tick);
var label = new TextBlock
{
Text = LabelFormatter(i)
};
label.SetBinding(EffectProperty,
new Binding {Path = new PropertyPath(LabelsEffectProperty), Source = this});
Canvas.Children.Add(label);
label.UpdateLayout();
Canvas.SetLeft(label, alpha < 270
? tick.X2
: (Math.Abs(alpha - 270) < 4
? tick.X2 - label.ActualWidth*.5
: tick.X2 - label.ActualWidth));
Canvas.SetTop(label, tick.Y2);
tick.SetBinding(Shape.StrokeProperty,
new Binding { Path = new PropertyPath(TicksForegroundProperty), Source = this });
tick.SetBinding(Shape.StrokeThicknessProperty,
new Binding { Path = new PropertyPath(TicksStrokeThicknessProperty), Source = this });
}
MoveStick();
}
TextBlock InsertLineCenteredText (Canvas FramingCanvas, String Text,
double FontSizePercentage, double TopPercentage,
String Weight, String Color)
{
FontWeightConverter FWConverter = new FontWeightConverter ();
BrushConverter BRConverter = new BrushConverter ();
TextBlock BlockName = new TextBlock ();
BlockName.Visibility = Visibility.Visible;
FramingCanvas.Children.Add (BlockName);
FramingCanvas.UpdateLayout ();
double ActCanvasHeight = FramingCanvas.ActualHeight;
double ActCanvasWidth = FramingCanvas.ActualWidth;
BlockName.FontSize = FontSizePercentage * ActCanvasHeight / 100;
BlockName.FontWeight = (FontWeight)FWConverter.ConvertFromString (Weight);
BlockName.Foreground = (Brush)BRConverter.ConvertFromString (Color);
BlockName.Text = Text;
BlockName.TextAlignment = TextAlignment.Center;
BlockName.UpdateLayout ();
double ActHeadHeight = BlockName.ActualHeight;
double ActHeadWidth = BlockName.ActualWidth;
Canvas.SetTop (BlockName, (ActCanvasHeight * TopPercentage) / 100);
Canvas.SetLeft (BlockName, ((ActCanvasWidth - ActHeadWidth) / 2));
return BlockName;
}
public TextBlock InsertCanvasPositionedTextBlock (Canvas FramingCanvas, String Text,
double WidthPercentage, double HeightPercentage,
double FontSizePercentage, double LeftPercentage,
double TopPercentage, String Weight, String Color)
{
FontWeightConverter FWConverter = new FontWeightConverter ();
BrushConverter BRConverter = new BrushConverter ();
TextBlock BlockName = new TextBlock ();
BlockName.Visibility = Visibility.Visible;
FramingCanvas.Children.Add (BlockName);
FramingCanvas.UpdateLayout ();
double ActCanvasHeight = FramingCanvas.ActualHeight;
if (ActCanvasHeight == 0)
ActCanvasHeight = FramingCanvas.Height;
double ActCanvasWidth = FramingCanvas.ActualWidth;
if (ActCanvasWidth == 0)
ActCanvasWidth = FramingCanvas.Width;
Canvas.SetTop (BlockName, ((ActCanvasHeight * TopPercentage) / 100));
Canvas.SetLeft (BlockName, ((ActCanvasWidth * LeftPercentage) / 100));
double BlockNameWidth = (ActCanvasWidth * WidthPercentage) / 100;
double BlockNameHeight = (ActCanvasHeight * HeightPercentage) / 100;
Text = Text.Replace ("\r\n", " ");
Text = Text.Replace ("\n", " ");
Text = Text.Replace ("\r", " ");
bool TextFit = false;
double FontReduction = 1;
while (!TextFit)
{
BlockName.FontSize = (ActCanvasHeight * FontSizePercentage / 100.0) * FontReduction;
BlockName.FontWeight = (FontWeight)FWConverter.ConvertFromString (Weight);
if (Color.IndexOf ('$') == -1)
BlockName.Foreground = (Brush)BRConverter.ConvertFromString (Color);
else
BlockName.Foreground = (Brush)BRConverter.ConvertFromString (Color);
BlockName.TextAlignment = TextAlignment.Left;
BlockName.TextWrapping = TextWrapping.Wrap;
BlockName.Text = Text;
BlockName.UpdateLayout ();
double ActTextHeight = BlockName.ActualHeight;
double ActTextWidth = BlockName.ActualWidth;
double NumberOfPossibleLines = (double)((int)(BlockNameHeight / ActTextHeight));
double RequiredNumberOfLines = (ActTextWidth * 1.10) / BlockNameWidth;
if (RequiredNumberOfLines < NumberOfPossibleLines)
{
TextFit = true;
}
FontReduction -= 0.05;
if (FontReduction < 0.30)
TextFit = true;
}
BlockName.Width = BlockNameWidth;
BlockName.Height = BlockNameHeight;
return BlockName;
}
TextBlock InsertCanvasPositionedText (Canvas FramingCanvas, String Text,
double WidthPercentage, double HeightPercentage,
double FontSizePercentage, String Weight, String Color)
{
FontWeightConverter FWConverter = new FontWeightConverter ();
BrushConverter BRConverter = new BrushConverter ();
TextBlock BlockName = new TextBlock ();
BlockName.Visibility = Visibility.Visible;
FramingCanvas.Children.Add (BlockName);
double ActCanvasHeight = FramingCanvas.ActualHeight;
double ActCanvasWidth = FramingCanvas.ActualWidth;
BlockName.FontSize = ActCanvasHeight * FontSizePercentage / 100.0;
BlockName.FontWeight = (FontWeight)FWConverter.ConvertFromString (Weight);
BlockName.Foreground = (Brush)BRConverter.ConvertFromString (Color);
BlockName.Text = Text;
BlockName.TextAlignment = TextAlignment.Center;
BlockName.UpdateLayout ();
double ActTextHeight = BlockName.ActualHeight;
double ActTextWidth = BlockName.ActualWidth;
Canvas.SetTop (BlockName, (((ActCanvasHeight * HeightPercentage) / 100) - (ActTextHeight / 2)));
Canvas.SetLeft (BlockName, (((ActCanvasWidth * WidthPercentage) / 100) - (ActTextWidth / 2)));
return BlockName;
}
private void SetContent(TextBlock textblock, string text)
{
textblock.Text = text;
textblock.UpdateLayout();
}
