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Imported Upstream version 5.16.0.100

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Former-commit-id: 38faa55fb9669e35e7d8448b15c25dc447f25767
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-08-07 15:19:03 +00:00
parent 0a9828183b
commit 7d7f676260
4419 changed files with 170950 additions and 90273 deletions
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20
mcs/class/System.Drawing/System.Drawing.Drawing2D/LinearGradientBrush.cs
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@@ -36,6 +36,7 @@ namespace System.Drawing.Drawing2D {
public sealed class LinearGradientBrush : Brush
{
RectangleF rectangle;
private bool _interpolationColorsWasSet;
internal LinearGradientBrush (IntPtr native)
{
@@ -142,6 +143,14 @@ namespace System.Drawing.Drawing2D {
public Blend Blend {
get {
// Interpolation colors and blends don't work together very well. Getting the Blend when InterpolationColors
// is set set puts the Brush into an unusable state afterwards.
// Bail out here to avoid that.
if (_interpolationColorsWasSet)
{
return null;
}
int count;
Status status = GDIPlus.GdipGetLineBlendCount (NativeBrush, out count);
GDIPlus.CheckStatus (status);
@@ -196,6 +205,11 @@ namespace System.Drawing.Drawing2D {
public ColorBlend InterpolationColors {
get {
if (!_interpolationColorsWasSet)
{
throw new ArgumentException("Property must be set to a valid ColorBlend object to use interpolation colors.");
}
int count;
Status status = GDIPlus.GdipGetLinePresetBlendCount (NativeBrush, out count);
GDIPlus.CheckStatus (status);
@@ -239,6 +253,8 @@ namespace System.Drawing.Drawing2D {
Status status = GDIPlus.GdipSetLinePresetBlend (NativeBrush, blend, positions, count);
GDIPlus.CheckStatus (status);
_interpolationColorsWasSet = true;
}
}
@@ -357,6 +373,8 @@ namespace System.Drawing.Drawing2D {
Status status = GDIPlus.GdipSetLineLinearBlend (NativeBrush, focus, scale);
GDIPlus.CheckStatus (status);
_interpolationColorsWasSet = false;
}
public void SetSigmaBellShape (float focus)
@@ -371,6 +389,8 @@ namespace System.Drawing.Drawing2D {
Status status = GDIPlus.GdipSetLineSigmaBlend (NativeBrush, focus, scale);
GDIPlus.CheckStatus (status);
_interpolationColorsWasSet = false;
}
public void TranslateTransform (float dx, float dy)