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
  17         protected static final int NAME_PREFIX_LENGTH = NAME_PREFIX.length();
  18
  19         protected static URL iconBaseURL;
  20
  21         static {
  22                 iconBaseURL = PHPDebugUiPlugin.getDefault().getBundle().getEntry(
  23                                 "/icons/"); //$NON-NLS-1$
  24         }
  25
  26         /*
  27          * static { String pathSuffix = "icons/"; try { iconBaseURL = new
  28          * URL(PHPDebugUiPlugin.getDefault().getDescriptor().getInstallURL(),
  29          * pathSuffix); } catch (MalformedURLException e) { PHPDebugUiPlugin.log(e); } }
  30          */
  31         protected static final ImageRegistry IMAGE_REGISTRY = new ImageRegistry();
  32
  33         protected static final String CTOOL_PREFIX = "ctool16";
  34
  35         protected static final String EVIEW_PREFIX = "eview16";
  36
  37         public static final String IMG_EVIEW_ARGUMENTS_TAB = NAME_PREFIX
  38                         + "arguments_tab.gif";
  39
  40         public static final ImageDescriptor DESC_EVIEW_ARGUMENTS_TAB = createManaged(
  41                         EVIEW_PREFIX, IMG_EVIEW_ARGUMENTS_TAB);
  42
  43         /**
  44          * Returns the image managed under the given key in this registry.
  45          *
  46          * @param key
  47          *            the image's key
  48          * @return the image managed under the given key
  49          */
  50         public static Image get(String key) {
  51                 return IMAGE_REGISTRY.get(key);
  52         }
  53
  54         /**
  55          * Sets the three image descriptors for enabled, disabled, and hovered to an
  56          * action. The actions are retrieved from the *tool16 folders.
  57          */
  58         public static void setToolImageDescriptors(IAction action, String iconName) {
  59                 setImageDescriptors(action, "tool16", iconName);
  60         }
  61
  62         /**
  63          * Sets the three image descriptors for enabled, disabled, and hovered to an
  64          * action. The actions are retrieved from the *lcl16 folders.
  65          */
  66         public static void setLocalImageDescriptors(IAction action, String iconName) {
  67                 setImageDescriptors(action, "lcl16", iconName);
  68         }
  69
  70         public static ImageRegistry getImageRegistry() {
  71                 return IMAGE_REGISTRY;
  72         }
  73
  74         // ---- Helper methods to access icons on the file system
  75         // --------------------------------------
  76
  77         protected static void setImageDescriptors(IAction action, String type,
  78                         String relPath) {
  79
  80                 try {
  81                         ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL(
  82                                         "d" + type, relPath));
  83                         if (id != null)
  84                                 action.setDisabledImageDescriptor(id);
  85                 } catch (MalformedURLException e) {
  86                 }
  87
  88                 try {
  89                         ImageDescriptor id = ImageDescriptor.createFromURL(makeIconFileURL(
  90                                         "c" + type, relPath));
  91                         if (id != null)
  92                                 action.setHoverImageDescriptor(id);
  93                 } catch (MalformedURLException e) {
  94                 }
  95
  96                 action.setImageDescriptor(create("e" + type, relPath));
  97         }
  98
  99         protected static ImageDescriptor createManaged(String prefix, String name) {
 100                 try {
 101                         ImageDescriptor result = ImageDescriptor
 102                                         .createFromURL(makeIconFileURL(prefix, name
 103                                                         .substring(NAME_PREFIX_LENGTH)));
 104                         IMAGE_REGISTRY.put(name, result);
 105                         return result;
 106                 } catch (MalformedURLException e) {
 107                         return ImageDescriptor.getMissingImageDescriptor();
 108                 }
 109         }
 110
 111         protected static ImageDescriptor create(String prefix, String name) {
 112                 try {
 113                         return ImageDescriptor.createFromURL(makeIconFileURL(prefix, name));
 114                 } catch (MalformedURLException e) {
 115                         return ImageDescriptor.getMissingImageDescriptor();
 116                 }
 117         }
 118
 119         protected static URL makeIconFileURL(String prefix, String name)
 120                         throws MalformedURLException {
 121                 if (iconBaseURL == null)
 122                         throw new MalformedURLException();
 123
 124                 StringBuffer buffer = new StringBuffer(prefix);
 125                 buffer.append('/');
 126                 buffer.append(name);
 127                 return new URL(iconBaseURL, buffer.toString());
 128         }
 129 }