+++ /dev/null
-package net.mograsim.rcp.splashhandlers;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-
-import org.eclipse.core.runtime.IConfigurationElement;
-import org.eclipse.core.runtime.IExtension;
-import org.eclipse.core.runtime.Platform;
-import org.eclipse.jface.resource.ImageDescriptor;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Label;
-import org.eclipse.swt.widgets.Shell;
-import org.eclipse.ui.plugin.AbstractUIPlugin;
-import org.eclipse.ui.splash.AbstractSplashHandler;
-
-/**
- * @since 3.3
- *
- */
-public class ExtensibleSplashHandler extends AbstractSplashHandler
-{
-
- private ArrayList<Image> fImageList;
-
- private ArrayList<String> fTooltipList;
-
- private static final String F_SPLASH_EXTENSION_ID = "Sample.splashExtension"; // NON-NLS-1
-
- private static final String F_ELEMENT_ICON = "icon"; // NON-NLS-1
-
- private static final String F_ELEMENT_TOOLTIP = "tooltip"; // NON-NLS-1
-
- private static final String F_DEFAULT_TOOLTIP = "Image"; // NON-NLS-1
-
- private static final int F_IMAGE_WIDTH = 50;
-
- private static final int F_IMAGE_HEIGHT = 50;
-
- private static final int F_SPLASH_SCREEN_BEVEL = 5;
-
- private Composite fIconPanel;
-
- /**
- *
- */
- public ExtensibleSplashHandler()
- {
- fImageList = new ArrayList<>();
- fTooltipList = new ArrayList<>();
- fIconPanel = null;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.ui.splash.AbstractSplashHandler#init(org.eclipse.swt.widgets. Shell)
- */
- @Override
- public void init(Shell splash)
- {
- // Store the shell
- super.init(splash);
- // Configure the shell layout
- configureUISplash();
- // Load all splash extensions
- loadSplashExtensions();
- // If no splash extensions were loaded abort the splash handler
- if (!hasSplashExtensions())
- {
- return;
- }
- // Create UI
- createUI();
- // Configure the image panel bounds
- configureUICompositeIconPanelBounds();
- // Enter event loop and prevent the RCP application from
- // loading until all work is done
- doEventLoop();
- }
-
- /**
- * @return
- */
- private boolean hasSplashExtensions()
- {
- return !fImageList.isEmpty();
- }
-
- /**
- *
- */
- private void createUI()
- {
- // Create the icon panel
- createUICompositeIconPanel();
- // Create the images
- createUIImages();
- }
-
- /**
- *
- */
- private void createUIImages()
- {
- Iterator<Image> imageIterator = fImageList.iterator();
- Iterator<String> tooltipIterator = fTooltipList.iterator();
- int i = 1;
- int columnCount = ((GridLayout) fIconPanel.getLayout()).numColumns;
- // Create all the images
- // Abort if we run out of columns (left-over images will not fit within
- // the usable splash screen width)
- while (imageIterator.hasNext() && (i <= columnCount))
- {
- Image image = imageIterator.next();
- String tooltip = tooltipIterator.next();
- // Create the image using a label widget
- createUILabel(image, tooltip);
- i++;
- }
- }
-
- /**
- * @param image
- * @param tooltip
- */
- private void createUILabel(Image image, String tooltip)
- {
- // Create the label (no text)
- Label label = new Label(fIconPanel, SWT.NONE);
- label.setImage(image);
- label.setToolTipText(tooltip);
- }
-
- /**
- *
- */
- private void createUICompositeIconPanel()
- {
- Shell splash = getSplash();
- // Create the composite
- fIconPanel = new Composite(splash, SWT.NONE);
- // Determine the maximum number of columns that can fit on the splash
- // screen. One 50x50 image per column.
- int maxColumnCount = getUsableSplashScreenWidth() / F_IMAGE_WIDTH;
- // Limit size to the maximum number of columns if the number of images
- // exceed this amount; otherwise, use the exact number of columns
- // required.
- int actualColumnCount = Math.min(fImageList.size(), maxColumnCount);
- // Configure the layout
- GridLayout layout = new GridLayout(actualColumnCount, true);
- layout.horizontalSpacing = 0;
- layout.verticalSpacing = 0;
- layout.marginHeight = 0;
- layout.marginWidth = 0;
- fIconPanel.setLayout(layout);
- }
-
- /**
- *
- */
- private void configureUICompositeIconPanelBounds()
- {
- // Determine the size of the panel and position it at the bottom-right
- // of the splash screen.
- Point panelSize = fIconPanel.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
-
- int xCoord = getSplash().getSize().x - F_SPLASH_SCREEN_BEVEL - panelSize.x;
- int yCoord = getSplash().getSize().y - F_SPLASH_SCREEN_BEVEL - panelSize.y;
- int xWidth = panelSize.x;
- int yWidth = panelSize.y;
-
- fIconPanel.setBounds(xCoord, yCoord, xWidth, yWidth);
- }
-
- /**
- * @return
- */
- private int getUsableSplashScreenWidth()
- {
- // Splash screen width minus two graphic border bevel widths
- return getSplash().getSize().x - (F_SPLASH_SCREEN_BEVEL * 2);
- }
-
- /**
- *
- */
- private void loadSplashExtensions()
- {
- // Get all splash handler extensions
- IExtension[] extensions = Platform.getExtensionRegistry().getExtensionPoint(F_SPLASH_EXTENSION_ID).getExtensions();
- // Process all splash handler extensions
- for (int i = 0; i < extensions.length; i++)
- {
- processSplashExtension(extensions[i]);
- }
- }
-
- /**
- * @param extension
- */
- private void processSplashExtension(IExtension extension)
- {
- // Get all splash handler configuration elements
- IConfigurationElement[] elements = extension.getConfigurationElements();
- // Process all splash handler configuration elements
- for (int j = 0; j < elements.length; j++)
- {
- processSplashElements(elements[j]);
- }
- }
-
- /**
- * @param configurationElement
- */
- private void processSplashElements(IConfigurationElement configurationElement)
- {
- // Attribute: icon
- processSplashElementIcon(configurationElement);
- // Attribute: tooltip
- processSplashElementTooltip(configurationElement);
- }
-
- /**
- * @param configurationElement
- */
- private void processSplashElementTooltip(IConfigurationElement configurationElement)
- {
- // Get attribute tooltip
- String tooltip = configurationElement.getAttribute(F_ELEMENT_TOOLTIP);
- // If a tooltip is not defined, give it a default
- if ((tooltip == null) || (tooltip.length() == 0))
- {
- fTooltipList.add(F_DEFAULT_TOOLTIP);
- } else
- {
- fTooltipList.add(tooltip);
- }
- }
-
- /**
- * @param configurationElement
- */
- private void processSplashElementIcon(IConfigurationElement configurationElement)
- {
- // Get attribute icon
- String iconImageFilePath = configurationElement.getAttribute(F_ELEMENT_ICON);
- // Abort if an icon attribute was not specified
- if ((iconImageFilePath == null) || (iconImageFilePath.length() == 0))
- {
- return;
- }
- // Create a corresponding image descriptor
- ImageDescriptor descriptor = AbstractUIPlugin.imageDescriptorFromPlugin(configurationElement.getNamespaceIdentifier(),
- iconImageFilePath);
- // Abort if no corresponding image was found
- if (descriptor == null)
- {
- return;
- }
- // Create the image
- Image image = descriptor.createImage();
- // Abort if image creation failed
- if (image == null)
- {
- return;
- }
- // Abort if the image does not have dimensions of 50x50
- if ((image.getBounds().width != F_IMAGE_WIDTH) || (image.getBounds().height != F_IMAGE_HEIGHT))
- {
- // Dipose of the image
- image.dispose();
- return;
- }
- // Store the image and tooltip
- fImageList.add(image);
- }
-
- /**
- *
- */
- private void configureUISplash()
- {
- // Configure layout
- GridLayout layout = new GridLayout(1, true);
- getSplash().setLayout(layout);
- // Force shell to inherit the splash background
- getSplash().setBackgroundMode(SWT.INHERIT_DEFAULT);
- }
-
- /**
- *
- */
- private void doEventLoop()
- {
- Shell splash = getSplash();
- if (!splash.getDisplay().readAndDispatch())
- {
- splash.getDisplay().sleep();
- }
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.ui.splash.AbstractSplashHandler#dispose()
- */
- @Override
- public void dispose()
- {
- super.dispose();
- // Check to see if any images were defined
- if ((fImageList == null) || fImageList.isEmpty())
- {
- return;
- }
- // Dispose of all the images
- Iterator<Image> iterator = fImageList.iterator();
- while (iterator.hasNext())
- {
- Image image = iterator.next();
- image.dispose();
- }
- }
-}
projects / Mograsim.git / blobdiff