package org.rubypeople.rdt.debug.ui;
import java.net.MalformedURLException;
import java.net.URL;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.rubypeople.rdt.internal.debug.ui.RdtDebugUiPlugin;
public class RdtDebugUiImages {
protected static final String NAME_PREFIX = "org.rubypeople.rdt.debug.ui.";
protected static final int NAME_PREFIX_LENGTH = NAME_PREFIX.length();
protected static URL iconBaseURL;
static {
iconBaseURL= RdtDebugUiPlugin.getDefault().getBundle().getEntry("/icons/full/"); //$NON-NLS-1$
}
protected static final ImageRegistry IMAGE_REGISTRY = new ImageRegistry();
protected static final String CTOOL_PREFIX = "ctool16";
protected static final String EVIEW_PREFIX = "eview16";
public static final String IMG_EVIEW_ARGUMENTS_TAB= NAME_PREFIX + "arguments_tab.gif";
public static final ImageDescriptor DESC_EVIEW_ARGUMENTS_TAB = createManaged(EVIEW_PREFIX, IMG_EVIEW_ARGUMENTS_TAB);
/**
* Returns the image managed under the given key in this registry.
*
* @param key the image's key
* @return the image managed under the given key
*/
public static Image get(String key) {
return IMAGE_REGISTRY.get(key);
}
/**
* Sets the three image descriptors for enabled, disabled, and hovered to an action. The actions
* are retrieved from the *tool16 folders.
*/
public static void setToolImageDescriptors(IAction action, String iconName) {
setImageDescriptors(action, "tool16", iconName);
}
/**
* Sets the three image descriptors for enabled, disabled, and hovered to an action. The actions
* are retrieved from the *lcl16 folders.
*/
public static void setLocalImageDescriptors(IAction action, String iconName) {
setImageDescriptors(action, "lcl16", iconName);
}
public static ImageRegistry getImageRegistry() {
return IMAGE_REGISTRY;
}
//---- Helper methods to access icons on the file system --------------------------------------
protected static void setImageDescriptors(IAction action, String type, String relPath) {
try {
ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL("d" + type, relPath));
if (id != null)
action.setDisabledImageDescriptor(id);
} catch (MalformedURLException e) {}
try {
ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL("c" + type, relPath));
if (id != null)
action.setHoverImageDescriptor(id);
} catch (MalformedURLException e) {}
action.setImageDescriptor(create("e" + type, relPath));
}
protected static ImageDescriptor createManaged(String prefix, String name) {
try {
ImageDescriptor result = ImageDescriptor.createFromURL(makeIconFileURL(prefix, name.substring(NAME_PREFIX_LENGTH)));
IMAGE_REGISTRY.put(name, result);
return result;
} catch (MalformedURLException e) {
return ImageDescriptor.getMissingImageDescriptor();
}
}
protected static ImageDescriptor create(String prefix, String name) {
try {
return ImageDescriptor.createFromURL(makeIconFileURL(prefix, name));
} catch (MalformedURLException e) {
return ImageDescriptor.getMissingImageDescriptor();
}
}
protected static URL makeIconFileURL(String prefix, String name) throws MalformedURLException {
if (iconBaseURL == null)
throw new MalformedURLException();
StringBuffer buffer = new StringBuffer(prefix);
buffer.append('/');
buffer.append(name);
return new URL(iconBaseURL, buffer.toString());
}
}