NLinearGradientFill GradientWithTwoStops()
{
NLinearGradientFill lgf = new NLinearGradientFill();
lgf.GradientStops.Add(new NGradientStop(0, NColor.Red));
lgf.GradientStops.Add(new NGradientStop(1, NColor.DarkBlue));
return(lgf);
}
protected override NWidget CreateExampleContent()
{
// Create a table panel to hold the canvases and the labels
m_Table = new NTableFlowPanel();
m_Table.HorizontalPlacement = ENHorizontalPlacement.Left;
m_Table.VerticalPlacement = ENVerticalPlacement.Top;
m_Table.Padding = new NMargins(30);
m_Table.HorizontalSpacing = 30;
m_Table.VerticalSpacing = 30;
m_Table.MaxOrdinal = 2;
string[] texts = new string[]
{
"Two Gradient Stops, Horizontal Gradient Axis",
"Five Gradient Stops, Vertical Gradient Axis",
"Gradient Axis Angle = 45deg, Mapping Mode = ZoomToFill",
"Gradient Axis Angle = 45deg, Mapping Mode = Stretch"
};
NLinearGradientFill[] fills = new NLinearGradientFill[]
{
GradientWithTwoStops(),
GradientWithFiveStops(),
GradientInZoomToFillMode(),
GradientInStretchMode(),
};
// Add a canvas for each demonstrated gradient
for (int i = 0; i < fills.Length; i++)
{
NStackPanel stack = new NStackPanel();
m_Table.Add(stack);
stack.Direction = ENHVDirection.TopToBottom;
stack.FillMode = ENStackFillMode.First;
stack.FitMode = ENStackFitMode.First;
// Create a widget with the proper filling
NCanvas canvas = new NCanvas();
canvas.PreferredSize = new NSize(defaultCanvasWidth, defaultCanvasHeight);
canvas.Tag = fills[i];
stack.Add(canvas);
canvas.PrePaint += new Function <NCanvasPaintEventArgs>(OnCanvasPrePaint);
// Create a label with the corresponding name
NLabel label = new NLabel(texts[i]);
stack.Add(label);
label.HorizontalPlacement = ENHorizontalPlacement.Center;
}
// The table must be scrollable
NScrollContent scroll = new NScrollContent();
scroll.Content = m_Table;
return(scroll);
}
NLinearGradientFill GradientWithFiveStops()
{
NLinearGradientFill lgf = new NLinearGradientFill();
lgf.GradientStops.Add(new NGradientStop(0.00f, NColor.Red));
lgf.GradientStops.Add(new NGradientStop(0.25f, NColor.Yellow));
lgf.GradientStops.Add(new NGradientStop(0.50f, NColor.LimeGreen));
lgf.GradientStops.Add(new NGradientStop(0.75f, NColor.RoyalBlue));
lgf.GradientStops.Add(new NGradientStop(1.00f, NColor.BlueViolet));
lgf.SetAngle(new NAngle(90, NUnit.Degree));
return(lgf);
}
void PaintRectangle(NPaintVisitor paintVisitor, double w, double h)
{
NLinearGradientFill lgf = new NLinearGradientFill();
lgf.GradientStops.Add(new NGradientStop(0, NColor.Indigo));
lgf.GradientStops.Add(new NGradientStop(0.5f, NColor.SlateBlue));
lgf.GradientStops.Add(new NGradientStop(1, new NColor(NColor.Crimson, 30)));
paintVisitor.SetStroke(NColor.Black, 1);
paintVisitor.SetFill(lgf);
paintVisitor.PaintRectangle(0.2 * w, 0.3 * h, 0.6 * w, 0.4 * h);
}
NLinearGradientFill GradientInStretchMode()
{
NLinearGradientFill lgf = new NLinearGradientFill();
lgf.GradientStops.Add(new NGradientStop(0.0f, NColor.Red));
lgf.GradientStops.Add(new NGradientStop(0.4f, NColor.BlueViolet));
lgf.GradientStops.Add(new NGradientStop(0.5f, NColor.LavenderBlush));
lgf.GradientStops.Add(new NGradientStop(0.6f, NColor.BlueViolet));
lgf.GradientStops.Add(new NGradientStop(1.0f, NColor.Red));
lgf.SetAngle(new NAngle(45, NUnit.Degree));
// FIX: Gradient Transform
// lgf.MappingMode = ENGradientMappingMode.Stretch;
return(lgf);
}
/// <summary>
/// Static constructor.
/// </summary>
static NStyleNode()
{
defaultLinearGradientFill = new NLinearGradientFill();
defaultLinearGradientFill.GradientStops.Add(new NGradientStop(0.0f, NColor.Red));
defaultLinearGradientFill.GradientStops.Add(new NGradientStop(0.5f, NColor.Yellow));
defaultLinearGradientFill.GradientStops.Add(new NGradientStop(1.0f, NColor.Indigo));
defaultRadialGradientFill = new NRadialGradientFill();
defaultRadialGradientFill.GradientStops.Add(new NGradientStop(0.0f, NColor.Red));
defaultRadialGradientFill.GradientStops.Add(new NGradientStop(0.5f, NColor.Yellow));
defaultRadialGradientFill.GradientStops.Add(new NGradientStop(1.0f, NColor.Indigo));
defaultAdvancedGradientFill = new NAdvancedGradientFill();
defaultAdvancedGradientFill.Points.Add(new NAdvancedGradientPoint(NColor.Red, NAngle.Zero, 0, 0, 1, ENAdvancedGradientPointShape.Circle));
defaultAdvancedGradientFill.Points.Add(new NAdvancedGradientPoint(NColor.Blue, NAngle.Zero, 1, 1, 1, ENAdvancedGradientPointShape.Circle));
NStyleNodeSchema = NSchema.Create(typeof(NStyleNode), NNode.NNodeSchema);
// Properties - fill
FillProperty = NStyleNodeSchema.AddSlot("Fill", typeof(NFill), defaultFill);
ColorFillProperty = NStyleNodeSchema.AddSlot("ColorFill", typeof(NColorFill), defaultColorFill);
StockGradientFillProperty = NStyleNodeSchema.AddSlot("StockGradientFill", typeof(NStockGradientFill), defaultStockGradientFill);
LinearGradientFillProperty = NStyleNodeSchema.AddSlot("LinearGradientFill", typeof(NLinearGradientFill), defaultLinearGradientFill);
RadialGradientFillProperty = NStyleNodeSchema.AddSlot("RadialGradientFill", typeof(NRadialGradientFill), defaultRadialGradientFill);
AdvancedGradientFillProperty = NStyleNodeSchema.AddSlot("AdvancedGradientFill", typeof(NAdvancedGradientFill), defaultAdvancedGradientFill);
HatchFillProperty = NStyleNodeSchema.AddSlot("HatchFill", typeof(NHatchFill), defaultHatchFill);
ImageFillProperty = NStyleNodeSchema.AddSlot("ImageFill", typeof(NImageFill), defaultImageFill);
// Broperties - border
BorderProperty = NStyleNodeSchema.AddSlot("Border", typeof(NBorder), defaultBorder);
// Broperties - stroke
StrokeProperty = NStyleNodeSchema.AddSlot("Stroke", typeof(NStroke), defaultStroke);
// Properties - font
FontProperty = NStyleNodeSchema.AddSlot("Font", typeof(NFont), defaultFont);
// Constants
Designers = new NDesigner[] {
new NStyleNodeHStackDesigner(),
new NStyleNodeVStackDesigner(),
new NStyleNodeTabDesigner(),
new NStyleNodeMixedDesigner()
};
}
