private RectangleF _GetRectangle()
{
GPRECTF gprectf = new GPRECTF();
int status = SafeNativeMethods.Gdip.GdipGetPathGradientRect(new HandleRef(this, base.NativeBrush), ref gprectf);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
return gprectf.ToRectangleF();
}
public RectangleF GetBounds(ref GraphicsUnit pageUnit) {
GPRECTF gprectf = new GPRECTF();
int status = SafeNativeMethods.Gdip.GdipGetImageBounds(new HandleRef(this, nativeImage), ref gprectf, out pageUnit);
if (status != SafeNativeMethods.Gdip.Ok)
throw SafeNativeMethods.Gdip.StatusException(status);
return gprectf.ToRectangleF();
}
public RectangleF GetBounds(Graphics g)
{
if (g == null)
{
throw new ArgumentNullException("g");
}
GPRECTF gprectf = new GPRECTF();
int status = SafeNativeMethods.Gdip.GdipGetRegionBounds(new HandleRef(this, this.nativeRegion), new HandleRef(g, g.NativeGraphics), ref gprectf);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
return gprectf.ToRectangleF();
}
/**
* Get source rectangle
*/
private RectangleF _GetRectangle() {
GPRECTF rect = new GPRECTF();
int status = SafeNativeMethods.Gdip.GdipGetLineRect(new HandleRef(this, this.NativeBrush), ref rect);
if (status != SafeNativeMethods.Gdip.Ok)
throw SafeNativeMethods.Gdip.StatusException(status);
return rect.ToRectangleF();
}
/// <include file='doc\GraphicsPath.uex' path='docs/doc[@for="GraphicsPath.GetBounds2"]/*' />
/// <devdoc>
/// <para>
/// Returns a rectangle that bounds this <see cref='System.Drawing.Drawing2D.GraphicsPath'/> when it is
/// transformed by the specified <see cref='System.Drawing.Drawing2D.Matrix'/>. and drawn with the specified <see cref='System.Drawing.Pen'/>.
/// </para>
/// </devdoc>
public RectangleF GetBounds(Matrix matrix, Pen pen) {
GPRECTF gprectf = new GPRECTF();
IntPtr nativeMatrix = IntPtr.Zero, nativePen = IntPtr.Zero;
if (matrix != null)
nativeMatrix = matrix.nativeMatrix;
if (pen != null)
nativePen = pen.NativePen;
int status = SafeNativeMethods.Gdip.GdipGetPathWorldBounds(new HandleRef(this, nativePath),
ref gprectf,
new HandleRef(matrix, nativeMatrix),
new HandleRef(pen, nativePen));
if (status != SafeNativeMethods.Gdip.Ok)
throw SafeNativeMethods.Gdip.StatusException(status);
return gprectf.ToRectangleF();
}
public RectangleF[] GetRegionScans(Matrix matrix) {
if (matrix == null)
throw new ArgumentNullException("matrix");
int count = 0;
// call first time to get actual count of rectangles
int status = SafeNativeMethods.Gdip.GdipGetRegionScansCount(new HandleRef(this, nativeRegion),
out count,
new HandleRef(matrix, matrix.nativeMatrix));
if (status != SafeNativeMethods.Gdip.Ok)
throw SafeNativeMethods.Gdip.StatusException(status);
RectangleF[] rectangles;
int rectsize = (int)Marshal.SizeOf(typeof(GPRECTF));
IntPtr memoryRects = Marshal.AllocHGlobal(checked(rectsize*count));
try {
status = SafeNativeMethods.Gdip.GdipGetRegionScans(new HandleRef(this, nativeRegion),
memoryRects,
out count,
new HandleRef(matrix, matrix.nativeMatrix));
if (status != SafeNativeMethods.Gdip.Ok) {
throw SafeNativeMethods.Gdip.StatusException(status);
}
int index;
GPRECTF gprectf = new GPRECTF();
rectangles = new RectangleF[count];
for (index=0; index<count; index++) {
gprectf = (GPRECTF) UnsafeNativeMethods.PtrToStructure((IntPtr)(checked((long)memoryRects + rectsize*index)), typeof(GPRECTF));
rectangles[index] = gprectf.ToRectangleF();
}
}finally {
Marshal.FreeHGlobal(memoryRects);
}
return rectangles;
}
