Support of LspfResource

Support of LspfResource

The LspfResource contains settings about Layer Protected setting. Aspose.PSD supports LspfResource in PSD files.  For this, the API provides the LspfResource class.

The following code snippet shows you how Aspose.PSD supports LspfResource.

    // For complete examples and data files, please go to https://github.com/aspose-psd/Aspose.PSD-for-Java
    public static void main(String[] args) {
        String sourceDir = Utils.GetDataDir_PSD();
        String outputDir = Utils.GetDataDir_Output();
        final String actualPropertyValueIsWrongMessage = "Expected property value is not equal to actual value";

        String sourceFileName = sourceDir + "SampleForLspfResource.psd";
        String destinationFileName = outputDir + "SampleForLspfResource_out.psd";
        boolean isRequiredResourceFound = false;
        PsdImage im = null;
        try {
            im = (PsdImage) Image.load(sourceFileName);
            for (Layer layer : im.getLayers()) {
                for (LayerResource layerResource : layer.getResources()) {
                    if (layerResource instanceof LspfResource) {
                        LspfResource resource = (LspfResource) layerResource;

                        isRequiredResourceFound = true;

                        assertIsTrue(!resource.isCompositeProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isPositionProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isTransparencyProtected(), actualPropertyValueIsWrongMessage);

                        // Test editing and saving
                        resource.setCompositeProtected(true);
                        assertIsTrue(resource.isCompositeProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isPositionProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isTransparencyProtected(), actualPropertyValueIsWrongMessage);

                        resource.setCompositeProtected(false);
                        resource.setPositionProtected(true);
                        assertIsTrue(!resource.isCompositeProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(resource.isPositionProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isTransparencyProtected(), actualPropertyValueIsWrongMessage);

                        resource.setPositionProtected(false);
                        resource.setTransparencyProtected(true);
                        assertIsTrue(!resource.isCompositeProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(!resource.isPositionProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(resource.isTransparencyProtected(), actualPropertyValueIsWrongMessage);

                        resource.setCompositeProtected(true);
                        resource.setPositionProtected(true);
                        resource.setTransparencyProtected(true);

                        im.save(destinationFileName);
                        break;
                    }
                }
            }
        } finally {
            if (im != null) im.dispose();
        }

        assertIsTrue(isRequiredResourceFound, "The specified LspfResource not found");
        isRequiredResourceFound = false;

        PsdImage im2 = null;
        try {
            im2 = (PsdImage) Image.load(destinationFileName);
            for (Layer layer : im2.getLayers()) {
                for (LayerResource layerResource : layer.getResources()) {
                    if (layerResource instanceof LspfResource) {
                        LspfResource resource = (LspfResource) layerResource;

                        isRequiredResourceFound = true;

                        assertIsTrue(resource.isCompositeProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(resource.isPositionProtected(), actualPropertyValueIsWrongMessage);
                        assertIsTrue(resource.isTransparencyProtected(), actualPropertyValueIsWrongMessage);

                        break;
                    }
                }
            }
        } finally {
            if (im2 != null) im2.dispose();
        }

        assertIsTrue(isRequiredResourceFound, "The specified LspfResource not found");
        System.out.println("LspfResource updating works as expected. Press any key.");
    }

    private static void assertIsTrue(boolean condition, String message) {
        if (!condition) {
            throw new FormatException(message);
        }
    }