/// <inheritdoc />
protected override void PaintImpl(OverlayPaintRequest request)
{
if (text.Length == 0)
{
return;
}
Rectangle layoutRect = new Rectangle(
request.FramesBounds.Left + Margin,
request.FramesBounds.Top + Margin,
request.FramesBounds.Width - Margin * 2,
request.FramesBounds.Height - Margin * 2);
StringFormat format = new StringFormat(StringFormat.GenericDefault)
{
Alignment = ToStringAlignment(HorizontalAlignment),
LineAlignment = ToStringAlignment(VerticalAlignment)
};
GraphicsPath path = new GraphicsPath();
path.AddString(text, FontFamily.GenericSansSerif, (int)FontStyle.Regular, fontSize, layoutRect, format);
Brush fillBrush = Brushes.Black;
Pen outlinePen = new Pen(Brushes.White, fontSize / 2.0f);
outlinePen.Alignment = PenAlignment.Outset;
request.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
request.Graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
request.Graphics.DrawPath(outlinePen, path);
request.Graphics.FillPath(fillBrush, path);
}
/// <summary>
/// Paints the overlay.
/// </summary>
/// <param name="request">The paint request.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="request"/> is null.</exception>
public void Paint(OverlayPaintRequest request)
{
if (request == null)
throw new ArgumentNullException("request");
PaintImpl(request);
}
/// <summary>
/// Paints the overlay.
/// </summary>
/// <param name="request">The paint request.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="request"/> is null.</exception>
public void Paint(OverlayPaintRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
PaintImpl(request);
}
/// <summary>
/// Asks all overlays to paint themselves.
/// </summary>
/// <param name="request">The paint request.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="request"/> is null.</exception>
public void PaintOverlays(OverlayPaintRequest request)
{
if (request == null)
throw new ArgumentNullException("request");
foreach (Overlay overlay in overlays)
{
GraphicsState originalState = request.Graphics.Save();
try
{
overlay.Paint(request);
}
finally
{
request.Graphics.Restore(originalState);
}
}
}
/// <summary>
/// Asks all overlays to paint themselves.
/// </summary>
/// <param name="request">The paint request.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="request"/> is null.</exception>
public void PaintOverlays(OverlayPaintRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
foreach (Overlay overlay in overlays)
{
GraphicsState originalState = request.Graphics.Save();
try
{
overlay.Paint(request);
}
finally
{
request.Graphics.Restore(originalState);
}
}
}
public void PaintOverlays_PaintsAllOverlaysAndRestoresGraphicsContextForEachOne()
{
var overlayManager = new OverlayManager();
var overlay1 = new OverlayThatChangesInterpolationMode();
var overlay2 = new OverlayThatChangesInterpolationMode();
overlayManager.AddOverlay(overlay1);
overlayManager.AddOverlay(overlay2);
using (Bitmap bitmap = new Bitmap(32, 32))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
var request = new OverlayPaintRequest(graphics, new Rectangle(0, 0, 32, 32), 0, 0);
overlayManager.PaintOverlays(request);
Assert.Multiple(() =>
{
Assert.AreEqual(InterpolationMode.HighQualityBilinear, graphics.InterpolationMode);
Assert.IsTrue(overlay1.WasPainted);
Assert.AreEqual(InterpolationMode.HighQualityBilinear, overlay1.OldInterpolationMode);
Assert.IsTrue(overlay2.WasPainted);
Assert.AreEqual(InterpolationMode.HighQualityBilinear, overlay2.OldInterpolationMode);
});
}
}
}
protected override void PaintImpl(OverlayPaintRequest request)
{
OldInterpolationMode = request.Graphics.InterpolationMode;
WasPainted = true;
request.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
}
protected override void PaintImpl(OverlayPaintRequest request)
{
throw new NotImplementedException();
}
protected override void PaintImpl(OverlayPaintRequest request)
{
overlayManager.PaintOverlays(request);
}
/// <summary> /// Paints the overlay. /// </summary> /// <param name="request">The paint request, not null.</param> protected abstract void PaintImpl(OverlayPaintRequest request);
/// <inheritdoc />
protected override void PaintImpl(OverlayPaintRequest request)
{
if (text.Length == 0)
return;
Rectangle layoutRect = new Rectangle(
request.FramesBounds.Left + Margin,
request.FramesBounds.Top + Margin,
request.FramesBounds.Width - Margin * 2,
request.FramesBounds.Height - Margin * 2);
StringFormat format = new StringFormat(StringFormat.GenericDefault)
{
Alignment = ToStringAlignment(HorizontalAlignment),
LineAlignment = ToStringAlignment(VerticalAlignment)
};
GraphicsPath path = new GraphicsPath();
path.AddString(text, FontFamily.GenericSansSerif, (int) FontStyle.Regular, fontSize, layoutRect, format);
Brush fillBrush = Brushes.Black;
Pen outlinePen = new Pen(Brushes.White, fontSize / 2.0f);
outlinePen.Alignment = PenAlignment.Outset;
request.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
request.Graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
request.Graphics.DrawPath(outlinePen, path);
request.Graphics.FillPath(fillBrush, path);
}
/// <summary> /// Paints the overlay. /// </summary> /// <param name="request">The paint request, not null.</param> protected abstract void PaintImpl(OverlayPaintRequest request);
protected override void PaintImpl(OverlayPaintRequest request)
{
overlayManager.PaintOverlays(request);
}