net.sourceforge.phpeclipse.debug.ui/src/net/sourceforge/phpdt/debug/ui/PHPDebugUiImages.java

   1 package net.sourceforge.phpdt.debug.ui;
   2
   3 import java.net.MalformedURLException;
   4 import java.net.URL;
   5
   6 import net.sourceforge.phpdt.internal.debug.ui.PHPDebugUiPlugin;
   7
   8 import org.eclipse.jface.action.IAction;
   9 import org.eclipse.jface.resource.ImageDescriptor;
  10 import org.eclipse.jface.resource.ImageRegistry;
  11 import org.eclipse.swt.graphics.Image;
  12
  13 public class PHPDebugUiImages {
  14
  15         protected static final String NAME_PREFIX = "net.sourceforge.phpdt.debug.ui.";
  16         protected static final int NAME_PREFIX_LENGTH = NAME_PREFIX.length();
  17         protected static URL iconBaseURL;
  18
  19
  20         static {
  21                 iconBaseURL= PHPDebugUiPlugin.getDefault().getBundle().getEntry("/icons/"); //$NON-NLS-1$
  22         }
  23 /*
  24         static {
  25                 String pathSuffix = "icons/";
  26                 try {
  27                         iconBaseURL = new URL(PHPDebugUiPlugin.getDefault().getDescriptor().getInstallURL(), pathSuffix);
  28                 } catch (MalformedURLException e) {
  29                         PHPDebugUiPlugin.log(e);
  30                 }
  31         }
  32 */
  33         protected static final ImageRegistry IMAGE_REGISTRY = new ImageRegistry();
  34
  35         protected static final String CTOOL_PREFIX = "ctool16";
  36         protected static final String EVIEW_PREFIX = "eview16";
  37
  38         public static final String IMG_EVIEW_ARGUMENTS_TAB = NAME_PREFIX + "arguments_tab.gif";
  39
  40         public static final ImageDescriptor DESC_EVIEW_ARGUMENTS_TAB = createManaged(EVIEW_PREFIX, IMG_EVIEW_ARGUMENTS_TAB);
  41
  42         /**
  43          * Returns the image managed under the given key in this registry.
  44          *
  45          * @param key the image's key
  46          * @return the image managed under the given key
  47          */
  48         public static Image get(String key) {
  49                 return IMAGE_REGISTRY.get(key);
  50         }
  51
  52         /**
  53          * Sets the three image descriptors for enabled, disabled, and hovered to an action. The actions
  54          * are retrieved from the *tool16 folders.
  55          */
  56         public static void setToolImageDescriptors(IAction action, String iconName) {
  57                 setImageDescriptors(action, "tool16", iconName);
  58         }
  59
  60         /**
  61          * Sets the three image descriptors for enabled, disabled, and hovered to an action. The actions
  62          * are retrieved from the *lcl16 folders.
  63          */
  64         public static void setLocalImageDescriptors(IAction action, String iconName) {
  65                 setImageDescriptors(action, "lcl16", iconName);
  66         }
  67
  68         public static ImageRegistry getImageRegistry() {
  69                 return IMAGE_REGISTRY;
  70         }
  71
  72         //---- Helper methods to access icons on the file system --------------------------------------
  73
  74         protected static void setImageDescriptors(IAction action, String type, String relPath) {
  75
  76                 try {
  77                         ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL("d" + type, relPath));
  78                         if (id != null)
  79                                 action.setDisabledImageDescriptor(id);
  80                 } catch (MalformedURLException e) {}
  81
  82                 try {
  83                         ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL("c" + type, relPath));
  84                         if (id != null)
  85                                 action.setHoverImageDescriptor(id);
  86                 } catch (MalformedURLException e) {}
  87
  88                 action.setImageDescriptor(create("e" + type, relPath));
  89         }
  90
  91         protected static ImageDescriptor createManaged(String prefix, String name) {
  92                 try {
  93                         ImageDescriptor result = ImageDescriptor.createFromURL(makeIconFileURL(prefix, name.substring(NAME_PREFIX_LENGTH)));
  94                         IMAGE_REGISTRY.put(name, result);
  95                         return result;
  96                 } catch (MalformedURLException e) {
  97                         return ImageDescriptor.getMissingImageDescriptor();
  98                 }
  99         }
 100
 101         protected static ImageDescriptor create(String prefix, String name) {
 102                 try {
 103                         return ImageDescriptor.createFromURL(makeIconFileURL(prefix, name));
 104                 } catch (MalformedURLException e) {
 105                         return ImageDescriptor.getMissingImageDescriptor();
 106                 }
 107         }
 108
 109         protected static URL makeIconFileURL(String prefix, String name) throws MalformedURLException {
 110                 if (iconBaseURL == null)
 111                         throw new MalformedURLException();
 112
 113                 StringBuffer buffer = new StringBuffer(prefix);
 114                 buffer.append('/');
 115                 buffer.append(name);
 116                 return new URL(iconBaseURL, buffer.toString());
 117         }
 118 }