// Ravindra (rkumar@novell.com)
//
// Copyright (C) 2002/3 Ximian, Inc. http://www.ximian.com
-//
-// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2004,2006 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-using System.Drawing;
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+
+namespace System.Drawing.Drawing2D {
+
+ [MonoTODO ("libgdiplus/cairo doesn't support path gradients - unless it can be mapped to a radial gradient")]
+ public sealed class PathGradientBrush : Brush {
-namespace System.Drawing.Drawing2D
-{
- /// <summary>
- /// Summary description for PathGradientBrush.
- /// </summary>
- public sealed class PathGradientBrush : Brush
- {
- internal PathGradientBrush (IntPtr native) : base (native)
+ internal PathGradientBrush (IntPtr native)
{
+ SetNativeBrush (native);
}
public PathGradientBrush (GraphicsPath path)
{
- Status status = GDIPlus.GdipCreatePathGradientFromPath (path.NativeObject, out nativeObject);
+ if (path == null)
+ throw new ArgumentNullException ("path");
+
+ IntPtr nativeObject;
+ Status status = GDIPlus.GdipCreatePathGradientFromPath (path.nativePath, out nativeObject);
GDIPlus.CheckStatus (status);
+ SetNativeBrush (nativeObject);
}
public PathGradientBrush (Point [] points) : this (points, WrapMode.Clamp)
public PathGradientBrush (Point [] points, WrapMode wrapMode)
{
+ if (points == null)
+ throw new ArgumentNullException ("points");
+ if ((wrapMode < WrapMode.Tile) || (wrapMode > WrapMode.Clamp))
+ throw new InvalidEnumArgumentException ("WrapMode");
+
+ IntPtr nativeObject;
Status status = GDIPlus.GdipCreatePathGradientI (points, points.Length, wrapMode, out nativeObject);
GDIPlus.CheckStatus (status);
+ SetNativeBrush (nativeObject);
}
public PathGradientBrush (PointF [] points, WrapMode wrapMode)
{
+ if (points == null)
+ throw new ArgumentNullException ("points");
+ if ((wrapMode < WrapMode.Tile) || (wrapMode > WrapMode.Clamp))
+ throw new InvalidEnumArgumentException ("WrapMode");
+
+ IntPtr nativeObject;
Status status = GDIPlus.GdipCreatePathGradient (points, points.Length, wrapMode, out nativeObject);
GDIPlus.CheckStatus (status);
+ SetNativeBrush (nativeObject);
}
// Properties
public Blend Blend {
get {
int count;
- Status status = GDIPlus.GdipGetPathGradientBlendCount (nativeObject, out count);
+ Status status = GDIPlus.GdipGetPathGradientBlendCount (NativeBrush, out count);
GDIPlus.CheckStatus (status);
float [] factors = new float [count];
float [] positions = new float [count];
- status = GDIPlus.GdipGetPathGradientBlend (nativeObject, factors, positions, count);
+ status = GDIPlus.GdipGetPathGradientBlend (NativeBrush, factors, positions, count);
GDIPlus.CheckStatus (status);
Blend blend = new Blend ();
return blend;
}
set {
+ // no null check, MS throws a NullReferenceException here
int count;
float [] factors = value.Factors;
float [] positions = value.Positions;
if (positions [count - 1] != 1.0F)
throw new ArgumentException ("Invalid Blend object. The positions array must have 1.0 as its last element.");
- Status status = GDIPlus.GdipSetPathGradientBlend (nativeObject, factors, positions, count);
+ Status status = GDIPlus.GdipSetPathGradientBlend (NativeBrush, factors, positions, count);
GDIPlus.CheckStatus (status);
}
}
public Color CenterColor {
get {
int centerColor;
- Status status = GDIPlus.GdipGetPathGradientCenterColor (nativeObject, out centerColor);
+ Status status = GDIPlus.GdipGetPathGradientCenterColor (NativeBrush, out centerColor);
GDIPlus.CheckStatus (status);
return Color.FromArgb (centerColor);
}
set {
- Status status = GDIPlus.GdipSetPathGradientCenterColor (nativeObject, value.ToArgb ());
+ Status status = GDIPlus.GdipSetPathGradientCenterColor (NativeBrush, value.ToArgb ());
GDIPlus.CheckStatus (status);
}
}
public PointF CenterPoint {
get {
PointF center;
- Status status = GDIPlus.GdipGetPathGradientCenterPoint (nativeObject, out center);
+ Status status = GDIPlus.GdipGetPathGradientCenterPoint (NativeBrush, out center);
GDIPlus.CheckStatus (status);
return center;
}
set {
PointF center = value;
- Status status = GDIPlus.GdipSetPathGradientCenterPoint (nativeObject, ref center);
+ Status status = GDIPlus.GdipSetPathGradientCenterPoint (NativeBrush, ref center);
GDIPlus.CheckStatus (status);
}
}
get {
float xScale;
float yScale;
- Status status = GDIPlus.GdipGetPathGradientFocusScales (nativeObject, out xScale, out yScale);
+ Status status = GDIPlus.GdipGetPathGradientFocusScales (NativeBrush, out xScale, out yScale);
GDIPlus.CheckStatus (status);
return new PointF (xScale, yScale);
}
set {
- Status status = GDIPlus.GdipSetPathGradientFocusScales (nativeObject, value.X, value.Y);
+ Status status = GDIPlus.GdipSetPathGradientFocusScales (NativeBrush, value.X, value.Y);
GDIPlus.CheckStatus (status);
}
}
public ColorBlend InterpolationColors {
get {
int count;
- Status status = GDIPlus.GdipGetPathGradientPresetBlendCount (nativeObject, out count);
+ Status status = GDIPlus.GdipGetPathGradientPresetBlendCount (NativeBrush, out count);
GDIPlus.CheckStatus (status);
+ // if no failure, then the "managed" minimum is 1
+ if (count < 1)
+ count = 1;
+
int [] intcolors = new int [count];
float [] positions = new float [count];
- status = GDIPlus.GdipGetPathGradientPresetBlend (nativeObject, intcolors, positions, count);
- GDIPlus.CheckStatus (status);
+ // status would fail if we ask points or types with a < 2 count
+ if (count > 1) {
+ status = GDIPlus.GdipGetPathGradientPresetBlend (NativeBrush, intcolors, positions, count);
+ GDIPlus.CheckStatus (status);
+ }
ColorBlend interpolationColors = new ColorBlend ();
Color [] colors = new Color [count];
return interpolationColors;
}
set {
+ // no null check, MS throws a NullReferenceException here
int count;
Color [] colors = value.Colors;
float [] positions = value.Positions;
for (int i = 0; i < colors.Length; i++)
blend [i] = colors [i].ToArgb ();
- Status status = GDIPlus.GdipSetPathGradientPresetBlend (nativeObject, blend, positions, count);
+ Status status = GDIPlus.GdipSetPathGradientPresetBlend (NativeBrush, blend, positions, count);
GDIPlus.CheckStatus (status);
}
}
public RectangleF Rectangle {
get {
RectangleF rect;
- Status status = GDIPlus.GdipGetPathGradientRect (nativeObject, out rect);
+ Status status = GDIPlus.GdipGetPathGradientRect (NativeBrush, out rect);
GDIPlus.CheckStatus (status);
return rect;
public Color [] SurroundColors {
get {
int count;
- Status status = GDIPlus.GdipGetPathGradientSurroundColorCount (nativeObject, out count);
+ Status status = GDIPlus.GdipGetPathGradientSurroundColorCount (NativeBrush, out count);
GDIPlus.CheckStatus (status);
int [] intcolors = new int [count];
- status = GDIPlus.GdipGetPathGradientSurroundColorsWithCount (nativeObject, intcolors, ref count);
+ status = GDIPlus.GdipGetPathGradientSurroundColorsWithCount (NativeBrush, intcolors, ref count);
GDIPlus.CheckStatus (status);
Color [] colors = new Color [count];
return colors;
}
set {
+ // no null check, MS throws a NullReferenceException here
int count = value.Length;
int [] colors = new int [count];
for (int i = 0; i < count; i++)
colors [i] = value [i].ToArgb ();
- Status status = GDIPlus.GdipSetPathGradientSurroundColorsWithCount (nativeObject, colors, ref count);
+ Status status = GDIPlus.GdipSetPathGradientSurroundColorsWithCount (NativeBrush, colors, ref count);
GDIPlus.CheckStatus (status);
}
}
public Matrix Transform {
get {
Matrix matrix = new Matrix ();
- Status status = GDIPlus.GdipGetPathGradientTransform (nativeObject, matrix.nativeMatrix);
+ Status status = GDIPlus.GdipGetPathGradientTransform (NativeBrush, matrix.nativeMatrix);
GDIPlus.CheckStatus (status);
return matrix;
}
set {
- Status status = GDIPlus.GdipSetPathGradientTransform (nativeObject, value.nativeMatrix);
+ if (value == null)
+ throw new ArgumentNullException ("Transform");
+
+ Status status = GDIPlus.GdipSetPathGradientTransform (NativeBrush, value.nativeMatrix);
GDIPlus.CheckStatus (status);
}
}
public WrapMode WrapMode {
get {
WrapMode wrapMode;
- Status status = GDIPlus.GdipGetPathGradientWrapMode (nativeObject, out wrapMode);
+ Status status = GDIPlus.GdipGetPathGradientWrapMode (NativeBrush, out wrapMode);
GDIPlus.CheckStatus (status);
return wrapMode;
}
set {
- Status status = GDIPlus.GdipSetPathGradientWrapMode (nativeObject, value);
+ if ((value < WrapMode.Tile) || (value > WrapMode.Clamp))
+ throw new InvalidEnumArgumentException ("WrapMode");
+
+ Status status = GDIPlus.GdipSetPathGradientWrapMode (NativeBrush, value);
GDIPlus.CheckStatus (status);
}
}
public void MultiplyTransform (Matrix matrix, MatrixOrder order)
{
- Status status = GDIPlus.GdipMultiplyPathGradientTransform (nativeObject, matrix.nativeMatrix, order);
+ if (matrix == null)
+ throw new ArgumentNullException ("matrix");
+
+ Status status = GDIPlus.GdipMultiplyPathGradientTransform (NativeBrush, matrix.nativeMatrix, order);
GDIPlus.CheckStatus (status);
}
public void ResetTransform ()
{
- Status status = GDIPlus.GdipResetPathGradientTransform (nativeObject);
+ Status status = GDIPlus.GdipResetPathGradientTransform (NativeBrush);
GDIPlus.CheckStatus (status);
}
public void RotateTransform (float angle, MatrixOrder order)
{
- Status status = GDIPlus.GdipRotatePathGradientTransform (nativeObject, angle, order);
+ Status status = GDIPlus.GdipRotatePathGradientTransform (NativeBrush, angle, order);
GDIPlus.CheckStatus (status);
}
public void ScaleTransform (float sx, float sy, MatrixOrder order)
{
- Status status = GDIPlus.GdipScalePathGradientTransform (nativeObject, sx, sy, order);
+ Status status = GDIPlus.GdipScalePathGradientTransform (NativeBrush, sx, sy, order);
GDIPlus.CheckStatus (status);
}
if (focus < 0 || focus > 1 || scale < 0 || scale > 1)
throw new ArgumentException ("Invalid parameter passed.");
- Status status = GDIPlus.GdipSetPathGradientLinearBlend (nativeObject, focus, scale);
+ Status status = GDIPlus.GdipSetPathGradientLinearBlend (NativeBrush, focus, scale);
GDIPlus.CheckStatus (status);
}
if (focus < 0 || focus > 1 || scale < 0 || scale > 1)
throw new ArgumentException ("Invalid parameter passed.");
- Status status = GDIPlus.GdipSetPathGradientSigmaBlend (nativeObject, focus, scale);
+ Status status = GDIPlus.GdipSetPathGradientSigmaBlend (NativeBrush, focus, scale);
GDIPlus.CheckStatus (status);
}
public void TranslateTransform (float dx, float dy, MatrixOrder order)
{
- Status status = GDIPlus.GdipTranslatePathGradientTransform (nativeObject, dx, dy, order);
+ Status status = GDIPlus.GdipTranslatePathGradientTransform (NativeBrush, dx, dy, order);
GDIPlus.CheckStatus (status);
}
public override object Clone ()
{
IntPtr clonePtr;
- Status status = GDIPlus.GdipCloneBrush (nativeObject, out clonePtr);
+ Status status = (Status) GDIPlus.GdipCloneBrush (new HandleRef(this, NativeBrush), out clonePtr);
GDIPlus.CheckStatus (status);
PathGradientBrush clone = new PathGradientBrush (clonePtr);
projects / mono.git / blobdiff