/// <summary>
/// Updates the splash window with current contents of the overlay image.
/// </summary>
/// <exception cref="IllegalStateException"> if the overlay image does not exist;
/// for example, if {@code createGraphics} has never been called,
/// or if the splash screen has already been closed </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void update() throws IllegalStateException
public void Update()
{
BufferedImage image;
lock (typeof(SplashScreen))
{
CheckVisible();
image = this.Image;
}
if (image == null)
{
throw new IllegalStateException("no overlay image available");
}
DataBuffer buf = image.Raster.DataBuffer;
if (!(buf is DataBufferInt))
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new AssertionError("Overlay image DataBuffer is of invalid type == " + buf.GetType().FullName);
}
int numBanks = buf.NumBanks;
if (numBanks != 1)
{
throw new AssertionError("Invalid number of banks ==" + numBanks + " in overlay image DataBuffer");
}
if (!(image.SampleModel is SinglePixelPackedSampleModel))
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new AssertionError("Overlay image has invalid sample model == " + image.SampleModel.GetType().FullName);
}
SinglePixelPackedSampleModel sm = (SinglePixelPackedSampleModel)image.SampleModel;
int scanlineStride = sm.ScanlineStride;
Rectangle rect = image.Raster.Bounds;
// Note that we steal the data array here, but just for reading
// so we do not need to mark the DataBuffer dirty...
int[] data = SunWritableRaster.stealData((DataBufferInt)buf, 0);
lock (typeof(SplashScreen))
{
CheckVisible();
_update(SplashPtr, data, rect.x, rect.y, rect.Width_Renamed, rect.Height_Renamed, scanlineStride);
}
}
/// <summary>
/// Checks if the specified <code>SampleModel</code> is compatible
/// with this <code>ColorModel</code>. If <code>sm</code> is
/// <code>null</code>, this method returns <code>false</code>. </summary>
/// <param name="sm"> the specified <code>SampleModel</code>,
/// or <code>null</code> </param>
/// <returns> <code>true</code> if the specified <code>SampleModel</code>
/// is compatible with this <code>ColorModel</code>;
/// <code>false</code> otherwise. </returns>
/// <seealso cref= SampleModel </seealso>
public override bool IsCompatibleSampleModel(SampleModel sm)
{
if (!(sm is SinglePixelPackedSampleModel))
{
return(false);
}
// Must have the same number of components
if (NumComponents_Renamed != sm.NumBands)
{
return(false);
}
// Transfer type must be the same
if (sm.TransferType != TransferType_Renamed)
{
return(false);
}
SinglePixelPackedSampleModel sppsm = (SinglePixelPackedSampleModel)sm;
// Now compare the specific masks
int[] bitMasks = sppsm.BitMasks;
if (bitMasks.Length != MaskArray.Length)
{
return(false);
}
/* compare 'effective' masks only, i.e. only part of the mask
* which fits the capacity of the transfer type.
*/
int maxMask = (int)((1L << DataBuffer.GetDataTypeSize(TransferType_Renamed)) - 1);
for (int i = 0; i < bitMasks.Length; i++)
{
if ((maxMask & bitMasks[i]) != (maxMask & MaskArray[i]))
{
return(false);
}
}
return(true);
}
