public bool IsVisible(Rectangle_ rect)
{
bool result;
Status status = GDIPlus.GdipIsVisibleRegionRectI(nativeRegion, rect.X, rect.Y,
rect.Width, rect.Height, IntPtr.Zero, out result);
GDIPlus.CheckStatus(status);
return(result);
}
public bool IsVisible(Rectangle_ rect, Graphics g)
{
IntPtr ptr = (g == null) ? IntPtr.Zero : g.NativeObject;
bool result;
Status status = GDIPlus.GdipIsVisibleRegionRectI(nativeRegion, rect.X, rect.Y,
rect.Width, rect.Height, ptr, out result);
GDIPlus.CheckStatus(status);
return(result);
}
public TextureBrush(Image image, Rectangle_ dstRect, ImageAttributes imageAttr)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
IntPtr attr = imageAttr == null ? IntPtr.Zero : imageAttr.NativeObject;
Status status = GDIPlus.GdipCreateTextureIAI(image.nativeObject, attr, dstRect.X, dstRect.Y,
dstRect.Width, dstRect.Height, out nativeObject);
GDIPlus.CheckStatus(status);
}
/// <summary>
/// Intersect Shared Method
/// </summary>
///
/// <remarks>
/// Produces a new Rectangle_ by intersecting 2 existing
/// Rectangles. Returns null if there is no intersection.
/// </remarks>
public static Rectangle_ Intersect(Rectangle_ a, Rectangle_ b)
{
// MS.NET returns a non-empty Rectangle_ if the two rectangles
// touch each other
if (!a.IntersectsWithInclusive(b))
{
return(Empty);
}
return(Rectangle_.FromLTRB(
Math.Max(a.Left, b.Left),
Math.Max(a.Top, b.Top),
Math.Min(a.Right, b.Right),
Math.Min(a.Bottom, b.Bottom)));
}
//
// GetBounds
//
public RectangleF_ GetBounds(Graphics g)
{
if (g == null)
{
throw new ArgumentNullException("g");
}
RectangleF_ rect = new Rectangle_();
Status status = GDIPlus.GdipGetRegionBounds(nativeRegion, g.NativeObject, ref rect);
GDIPlus.CheckStatus(status);
return(rect);
}
public TextureBrush(Image image, WrapMode wrapMode, Rectangle_ dstRect)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if ((wrapMode < WrapMode.Tile) || (wrapMode > WrapMode.Clamp))
{
throw new InvalidEnumArgumentException("WrapMode");
}
Status status = GDIPlus.GdipCreateTexture2I(image.nativeObject, wrapMode, dstRect.X, dstRect.Y,
dstRect.Width, dstRect.Height, out nativeObject);
GDIPlus.CheckStatus(status);
}
public BufferedGraphics Allocate(Graphics targetGraphics, Rectangle_ targetRectangle)
{
BufferedGraphics graphics = new BufferedGraphics(targetGraphics, targetRectangle);
return(graphics);
}
private bool IntersectsWithInclusive(Rectangle_ r)
{
return(!((Left > r.Right) || (Right < r.Left) ||
(Top > r.Bottom) || (Bottom < r.Top)));
}
/// <summary>
/// IntersectsWith Method
/// </summary>
///
/// <remarks>
/// Checks if a Rectangle_ intersects with this one.
/// </remarks>
public bool IntersectsWith(Rectangle_ rect)
{
return(!((Left >= rect.Right) || (Right <= rect.Left) ||
(Top >= rect.Bottom) || (Bottom <= rect.Top)));
}
/// <summary>
/// Contains Method
/// </summary>
///
/// <remarks>
/// Checks if a Rectangle_ lies entirely within this
/// Rectangle.
/// </remarks>
public bool Contains(Rectangle_ rect)
{
return(rect == Intersect(this, rect));
}
/// <summary>
/// Intersect Method
/// </summary>
///
/// <remarks>
/// Replaces the Rectangle_ with the intersection of itself
/// and another Rectangle.
/// </remarks>
public void Intersect(Rectangle_ rect)
{
this = Rectangle_.Intersect(this, rect);
}
public TextureBrush(Image image, Rectangle_ dstRect) :
this(image, WrapMode.Tile, dstRect)
{
}
public Region(Rectangle_ rect)
{
Status status = GDIPlus.GdipCreateRegionRectI(ref rect, out nativeRegion);
GDIPlus.CheckStatus(status);
}
public void Xor(Rectangle_ rect)
{
Status status = GDIPlus.GdipCombineRegionRectI(nativeRegion, ref rect, CombineMode.Xor);
GDIPlus.CheckStatus(status);
}
public BufferedGraphics Allocate(IntPtr targetDC, Rectangle_ targetRectangle)
{
throw new NotImplementedException();
}
public BitmapData LockBits(Rectangle_ rect, ImageLockMode flags, PixelFormat format)
{
BitmapData result = new BitmapData();
return(LockBits(rect, flags, format, result));
}
internal BufferedGraphics(Graphics targetGraphics, Rectangle_ targetRectangle)
{
size = targetRectangle;
target = targetGraphics;
membmp = new Bitmap(size.Width, size.Height);
}
