/// <summary>
/// Performs the element post-children custom paint. Overriden to paint the status
/// of this example tile (if it has one) in its bottom-left corner.
/// </summary>
/// <param name="visitor"></param>
protected override void OnPostPaint(NPaintVisitor visitor)
{
base.OnPostPaint(visitor);
if (String.IsNullOrEmpty(m_Status))
{
return;
}
// Paint a new label in the bottom left corner
NRectangle bounds = GetContentEdge();
NFont font = new NFont(FontName, 5.0, ENFontStyle.Regular);
font.RasterizationMode = ENFontRasterizationMode.Aliased;
NSize textSize = font.MeasureString(m_Status, this.OwnerDocument);
NRectangle textRect = new NRectangle(bounds.X - 1, bounds.Bottom - textSize.Height,
textSize.Width + 3, textSize.Height);
// Paint the text background
NColor color = HomePage.GetStatusColor(m_Status);
visitor.SetFill(color);
visitor.PaintRectangle(textRect);
// Paint the text
visitor.SetFill(NColor.White);
visitor.SetFont(font);
NPoint location = textRect.Location;
NPaintTextPointSettings settings = new NPaintTextPointSettings();
visitor.PaintString(location, m_Status, ref settings);
}
protected override NWidget CreateExampleContent()
{
double width = 1;
NColor color = NColor.Black;
m_arrStrokes = new NStroke[]
{
new NStroke(width, color, ENDashStyle.Solid),
new NStroke(width, color, ENDashStyle.Dot),
new NStroke(width, color, ENDashStyle.Dash),
new NStroke(width, color, ENDashStyle.DashDot),
new NStroke(width, color, ENDashStyle.DashDotDot),
new NStroke(width, color, new NDashPattern(2, 2, 2, 2, 0, 2))
};
m_EditStroke = new NStroke();
m_EditStroke.Width = width;
m_EditStroke.Color = color;
m_EditStroke.DashCap = ENLineCap.Square;
m_EditStroke.StartCap = ENLineCap.Square;
m_EditStroke.EndCap = ENLineCap.Square;
for (int i = 0; i < m_arrStrokes.Length; i++)
{
NStroke stroke = m_arrStrokes[i];
stroke.DashCap = m_EditStroke.DashCap;
stroke.StartCap = m_EditStroke.StartCap;
stroke.EndCap = m_EditStroke.EndCap;
}
m_LabelFont = new NFont(NFontDescriptor.DefaultSansFamilyName, 12, ENFontStyle.Bold);
m_LabelFill = new NColorFill(ENNamedColor.Black);
m_CanvasStack = new NStackPanel();
m_CanvasStack.FillMode = ENStackFillMode.None;
m_CanvasStack.FitMode = ENStackFitMode.None;
NSize preferredSize = GetCanvasPreferredSize(m_EditStroke.Width);
for (int i = 0; i < m_arrStrokes.Length; i++)
{
NCanvas canvas = new NCanvas();
canvas.PrePaint += new Function <NCanvasPaintEventArgs>(OnCanvasPrePaint);
canvas.PreferredSize = preferredSize;
canvas.Tag = m_arrStrokes[i];
canvas.BackgroundFill = new NColorFill(NColor.White);
m_CanvasStack.Add(canvas);
}
// The stack must be scrollable
NScrollContent scroll = new NScrollContent();
scroll.Content = m_CanvasStack;
return(scroll);
}
/// <summary>
/// Static constructor.
/// </summary>
static NExampleCategoryHeader()
{
NExampleCategoryHeaderSchema = NSchema.Create(typeof(NExampleCategoryHeader), NPairBox.NPairBoxSchema);
// Properties
StatusProperty = NExampleCategoryHeaderSchema.AddMember("Status", NDomType.String, defaultStatus,
delegate(NNode o) { return(((NExampleCategoryHeader)o).m_Status); },
delegate(NNode o, object v) { ((NExampleCategoryHeader)o).m_Status = (string)v; });
// Constants
StatusFont = new NFont(NExampleTile.FontName, 5.0, ENFontStyle.Regular);
StatusFont.RasterizationMode = ENFontRasterizationMode.Aliased;
}
/// <summary>
///
/// </summary>
/// <param name="args"></param>
private void OnCanvasPrePaint(NCanvasPaintEventArgs args)
{
NCanvas canvas = args.TargetNode as NCanvas;
if (canvas == null)
{
return;
}
NPaintVisitor paintVisitor = args.PaintVisitor;
NRectangle contentEge = canvas.GetContentEdge();
// create the text bounds
double width = contentEge.Width * m_WidthPercentUpDown.Value / 100.0;
double height = contentEge.Height * m_HeightPercentUpDown.Value / 100.0;
NPoint center = contentEge.Center;
NRectangle textBounds = new NRectangle(center.X - width / 2.0, center.Y - height / 2.0, width, height);
// create the settings
NPaintTextRectSettings settings = new NPaintTextRectSettings();
settings.SingleLine = m_SingleLineCheckBox.Checked;
settings.WrapMode = (ENTextWrapMode)m_WrapModeCombo.SelectedIndex;
settings.HorzAlign = (ENTextHorzAlign)m_HorizontalAlignmentCombo.SelectedIndex;
settings.VertAlign = (ENTextVertAlign)m_VerticalAlignmentCombo.SelectedIndex;
// create the text
StringBuilder builder = new StringBuilder();
builder.AppendLine("Paint text at bounds [" + textBounds.X.ToString("0.") + ", " + textBounds.Y.ToString("0.") + "]");
builder.AppendLine("Horizontal Alignment [" + settings.HorzAlign.ToString() + "]");
builder.AppendLine("Vertical Alignment [" + settings.VertAlign.ToString() + "]");
// paint the bounding box
paintVisitor.ClearStyles();
paintVisitor.SetFill(NColor.LightBlue);
paintVisitor.PaintRectangle(textBounds);
// init font and fill
paintVisitor.SetFill(NColor.Black);
NFont font = new NFont(NFontDescriptor.DefaultSansFamilyName, 10);
NGraphicsPath path = font.GetTextPath(builder.ToString(), textBounds, this.OwnerDocument, ref settings);
paintVisitor.PaintPath(path);
}
/// <summary>
///
/// </summary>
/// <param name="args"></param>
private void OnCanvasPrePaint(NCanvasPaintEventArgs args)
{
NCanvas canvas = args.TargetNode as NCanvas;
if (canvas == null)
{
return;
}
NPaintVisitor paintVisitor = args.PaintVisitor;
NRectangle contentEge = canvas.GetContentEdge();
// create the settings
NPaintTextRectSettings settings = new NPaintTextRectSettings();
settings.SingleLine = false;
settings.WrapMode = ENTextWrapMode.WordWrap;
settings.HorzAlign = ENTextHorzAlign.Left;
settings.VertAlign = ENTextVertAlign.Top;
// create the text
string text = m_TextBox.Text;
// calculate the text bounds the text bounds
double resolution = canvas.OwnerDocument.GetEffectiveResolution();
NFont font = new NFont(NFontDescriptor.DefaultSansFamilyName, 10, ENFontStyle.Regular);
NSize textSize = font.MeasureString(text.ToCharArray(), resolution, contentEge.Width, false, ref settings);
NPoint center = contentEge.Center;
NRectangle textBounds = new NRectangle(
center.X - textSize.Width / 2.0,
center.Y - textSize.Height / 2.0,
textSize.Width,
textSize.Height);
// paint the bounding box
paintVisitor.ClearStyles();
paintVisitor.SetFill(NColor.LightBlue);
paintVisitor.PaintRectangle(textBounds);
// init font and fill
paintVisitor.SetFill(NColor.Black);
paintVisitor.SetFont(font);
// paint the text
paintVisitor.PaintString(textBounds, text.ToCharArray(), ref settings);
}
