com.aspose.psd

Class ProgressEventHandler

java.lang.Object

com.aspose.ms.System.Delegate

com.aspose.ms.System.MulticastDelegate

com.aspose.psd.ProgressEventHandler

public abstract class ProgressEventHandler
extends com.aspose.ms.System.MulticastDelegate

Progress event handler function reference

Code example:

An example of usage of the progress handler for loading and saving operations. The program uses different saving options to fire progress events.

String sourceFilePath = "Apple.psd";
            
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            
// Create a progress handler that writes progress info to the console
ProgressEventHandler localProgressEventHandler = new ProgressEventHandler()
{
    @Override
    public void invoke(ProgressEventHandlerInfo progressInfo)
    {
        String message = String.format(
                "%s %s: %s out of %s",
                progressInfo.getDescription(),
                Enum.getName(EventType.class, progressInfo.getEventType()),
                progressInfo.getValue(),
                progressInfo.getMaxValue());
        System.out.println(message);
    }
};
            
System.out.println("---------- Loading Apple.psd ----------");
PsdLoadOptions loadOptions = new PsdLoadOptions();
// Bind the progress handler to show loading progress
loadOptions.setProgressEventHandler(localProgressEventHandler);
// Load PSD using specific loading options
PsdImage image = (PsdImage)Image.load(sourceFilePath, loadOptions);
try
{
    System.out.println("---------- Saving Apple.psd to PNG format ----------");
    PngOptions pngOptions = new PngOptions();
    // Make the output image coloured and non-transparent
    pngOptions.setColorType(PngColorType.Truecolor);
    // Bind the progress handler to show saving progress
    pngOptions.setProgressEventHandler(localProgressEventHandler);
    // Convert PSD to PNG with specific characteristics
    image.save(outputStream, pngOptions);
            
    System.out.println("---------- Saving Apple.psd to PSD format ----------");
    PsdOptions psdOptions = new PsdOptions();
    // Make the output PSD coloured
    psdOptions.setColorMode(ColorModes.Rgb);
    // Set a channel for each color (red, green, and blue) plus a composite channel
    psdOptions.setChannelsCount((short)4);
    // Bind the progress handler to show saving progress
    psdOptions.setProgressEventHandler(localProgressEventHandler);
    // Save a copy of PSD with specific characteristics
    image.save(outputStream, psdOptions);
}
finally
{
    image.dispose();
}

Constructor Summary

Constructors

Constructor and Description
ProgressEventHandler()

Method Summary

Modifier and Type	Method and Description
com.aspose.ms.System.IAsyncResult	beginInvoke(ProgressEventHandlerInfo info, com.aspose.ms.System.AsyncCallback callback, Object state)
void	endInvoke(com.aspose.ms.System.IAsyncResult result)
abstract void	invoke(ProgressEventHandlerInfo info) Progress event handler function reference

Constructor Detail

ProgressEventHandler

public ProgressEventHandler()

Method Detail

invoke

public abstract void invoke(ProgressEventHandlerInfo info)

Progress event handler function reference

Parameters:

info - The progress event handler data.

beginInvoke

public final com.aspose.ms.System.IAsyncResult beginInvoke(ProgressEventHandlerInfo info,
                                                           com.aspose.ms.System.AsyncCallback callback,
                                                           Object state)

endInvoke

public final void endInvoke(com.aspose.ms.System.IAsyncResult result)