java.lang.Objectcom.aspose.words.PageLayoutCallbackArgs
public class PageLayoutCallbackArgs
Property Getters/Setters Summary | ||
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Document | getDocument() | |
Gets document. | ||
int | getEvent() | |
Gets event. The value of the property is PageLayoutEvent integer constant. | ||
int | getPageIndex() | |
Gets 0-based index of the page in the document this event relates to. Returns negative value if there is no associated page, or if page was removed during reflow. |
Property Getters/Setters Detail |
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getDocument | |
public Document getDocument() |
Example:
Shows how to track layout changes with a layout callback.@Test public void pageLayoutCallback() throws Exception { Document doc = new Document(); doc.getBuiltInDocumentProperties().setTitle("My Document"); DocumentBuilder builder = new DocumentBuilder(doc); builder.writeln("Hello world!"); doc.getLayoutOptions().setCallback(new RenderPageLayoutCallback()); doc.updatePageLayout(); doc.save(getArtifactsDir() + "Layout.PageLayoutCallback.pdf"); } /// <summary> /// Notifies us when we save the document to a fixed page format /// and renders a page that we perform a page reflow on to an image in the local file system. /// </summary> private static class RenderPageLayoutCallback implements IPageLayoutCallback { public void notify(PageLayoutCallbackArgs a) throws Exception { switch (a.getEvent()) { case PageLayoutEvent.PART_REFLOW_FINISHED: notifyPartFinished(a); break; case PageLayoutEvent.CONVERSION_FINISHED: notifyConversionFinished(a); break; } } private void notifyPartFinished(PageLayoutCallbackArgs a) throws Exception { System.out.println(MessageFormat.format("Part at page {0} reflow.", a.getPageIndex() + 1)); renderPage(a, a.getPageIndex()); } private void notifyConversionFinished(PageLayoutCallbackArgs a) { System.out.println(MessageFormat.format("Document \"{0}\" converted to page format.", a.getDocument().getBuiltInDocumentProperties().getTitle())); } private void renderPage(PageLayoutCallbackArgs a, int pageIndex) throws Exception { ImageSaveOptions saveOptions = new ImageSaveOptions(SaveFormat.PNG); { saveOptions.setPageSet(new PageSet(pageIndex)); } try (FileOutputStream stream = new FileOutputStream(getArtifactsDir() + MessageFormat.format("PageLayoutCallback.page-{0} {1}.png", pageIndex + 1, ++mNum))) { a.getDocument().save(stream, saveOptions); } } private int mNum; }
getEvent | |
public int getEvent() |
Example:
Shows how to track layout changes with a layout callback.@Test public void pageLayoutCallback() throws Exception { Document doc = new Document(); doc.getBuiltInDocumentProperties().setTitle("My Document"); DocumentBuilder builder = new DocumentBuilder(doc); builder.writeln("Hello world!"); doc.getLayoutOptions().setCallback(new RenderPageLayoutCallback()); doc.updatePageLayout(); doc.save(getArtifactsDir() + "Layout.PageLayoutCallback.pdf"); } /// <summary> /// Notifies us when we save the document to a fixed page format /// and renders a page that we perform a page reflow on to an image in the local file system. /// </summary> private static class RenderPageLayoutCallback implements IPageLayoutCallback { public void notify(PageLayoutCallbackArgs a) throws Exception { switch (a.getEvent()) { case PageLayoutEvent.PART_REFLOW_FINISHED: notifyPartFinished(a); break; case PageLayoutEvent.CONVERSION_FINISHED: notifyConversionFinished(a); break; } } private void notifyPartFinished(PageLayoutCallbackArgs a) throws Exception { System.out.println(MessageFormat.format("Part at page {0} reflow.", a.getPageIndex() + 1)); renderPage(a, a.getPageIndex()); } private void notifyConversionFinished(PageLayoutCallbackArgs a) { System.out.println(MessageFormat.format("Document \"{0}\" converted to page format.", a.getDocument().getBuiltInDocumentProperties().getTitle())); } private void renderPage(PageLayoutCallbackArgs a, int pageIndex) throws Exception { ImageSaveOptions saveOptions = new ImageSaveOptions(SaveFormat.PNG); { saveOptions.setPageSet(new PageSet(pageIndex)); } try (FileOutputStream stream = new FileOutputStream(getArtifactsDir() + MessageFormat.format("PageLayoutCallback.page-{0} {1}.png", pageIndex + 1, ++mNum))) { a.getDocument().save(stream, saveOptions); } } private int mNum; }
getPageIndex | |
public int getPageIndex() |
Example:
Shows how to track layout changes with a layout callback.@Test public void pageLayoutCallback() throws Exception { Document doc = new Document(); doc.getBuiltInDocumentProperties().setTitle("My Document"); DocumentBuilder builder = new DocumentBuilder(doc); builder.writeln("Hello world!"); doc.getLayoutOptions().setCallback(new RenderPageLayoutCallback()); doc.updatePageLayout(); doc.save(getArtifactsDir() + "Layout.PageLayoutCallback.pdf"); } /// <summary> /// Notifies us when we save the document to a fixed page format /// and renders a page that we perform a page reflow on to an image in the local file system. /// </summary> private static class RenderPageLayoutCallback implements IPageLayoutCallback { public void notify(PageLayoutCallbackArgs a) throws Exception { switch (a.getEvent()) { case PageLayoutEvent.PART_REFLOW_FINISHED: notifyPartFinished(a); break; case PageLayoutEvent.CONVERSION_FINISHED: notifyConversionFinished(a); break; } } private void notifyPartFinished(PageLayoutCallbackArgs a) throws Exception { System.out.println(MessageFormat.format("Part at page {0} reflow.", a.getPageIndex() + 1)); renderPage(a, a.getPageIndex()); } private void notifyConversionFinished(PageLayoutCallbackArgs a) { System.out.println(MessageFormat.format("Document \"{0}\" converted to page format.", a.getDocument().getBuiltInDocumentProperties().getTitle())); } private void renderPage(PageLayoutCallbackArgs a, int pageIndex) throws Exception { ImageSaveOptions saveOptions = new ImageSaveOptions(SaveFormat.PNG); { saveOptions.setPageSet(new PageSet(pageIndex)); } try (FileOutputStream stream = new FileOutputStream(getArtifactsDir() + MessageFormat.format("PageLayoutCallback.page-{0} {1}.png", pageIndex + 1, ++mNum))) { a.getDocument().save(stream, saveOptions); } } private int mNum; }