/**
* <copyright>
* </copyright>
*
* $Id$
*/
package org.locationtech.udig.project.internal.provider;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.IMap;
import org.locationtech.udig.project.internal.Layer;
import org.locationtech.udig.project.internal.ProjectPackage;
import org.locationtech.udig.project.internal.ProjectPlugin;
import org.locationtech.udig.project.internal.impl.LayerImpl;
import org.locationtech.udig.project.preferences.PreferenceConstants;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ItemProviderAdapter;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
import org.geotools.util.Range;
/**
* This is the item provider adapter for a {@link org.locationtech.udig.project.internal.Layer} object.
* <!-- begin-user-doc --> The handling of this class is very important:
* <ul>
* <li>No method can block
* <li>if you have to catch an IOException you are doing it wrong
* <li>Responsible for providing an ImageDescriptor (not an Image)
* </ul>
* <!-- end-user-doc -->
* @generated
*/
public class LayerItemProvider extends ItemProviderAdapter implements IEditingDomainItemProvider,
IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider,
IItemPropertySource {
/** Properties Key used to cache generated name in layer.getProperties() */
public static final String GENERATED_NAME = "generated title"; //$NON-NLS-1$
/** Propeties Key used to cache generated icon in layer.getProperties() */
public static final String GENERATED_ICON = "generated icon"; //$NON-NLS-1$
/**
* This constructs an instance from a factory and a notifier.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
public LayerItemProvider(AdapterFactory adapterFactory) {
super(adapterFactory);
}
/**
* This returns the property descriptors for the adapted class. <!-- begin-user-doc --> <!--
* end-user-doc -->
*
* @generated NOT
*/
@SuppressWarnings("unchecked")
public List getPropertyDescriptors(Object object) {
if (itemPropertyDescriptors == null) {
super.getPropertyDescriptors(object);
addZorderPropertyDescriptor(object);
addNamePropertyDescriptor(object);
addVisiblePropertyDescriptor(object);
addIconPropertyDescriptor(object);
addFilterPropertyDescriptor(object);
addStatusPropertyDescriptor(object);
addCRSPropertyDescriptor(object);
// FIXME: Add new layer properties such as applicable
}
return itemPropertyDescriptors;
}
/**
* This adds a property descriptor for the Zorder feature. <!-- begin-user-doc --> <!--
* end-user-doc -->
*
*/
@SuppressWarnings("unchecked")
protected void addZorderPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_zorder_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_zorder_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.eINSTANCE.getLayer_Zorder(), true,
ItemPropertyDescriptor.INTEGRAL_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Name feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addNamePropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_name_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_name_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__NAME, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the ID feature. <!-- begin-user-doc --> <!-- end-user-doc
* -->
*
* @generated
*/
protected void addIDPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_iD_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_iD_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__ID, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Visible feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addVisiblePropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_visible_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_visible_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__VISIBLE, true, false, false,
ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Geo Resource feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addGeoResourcePropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_geoResource_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_geoResource_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__GEO_RESOURCE, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Geo Resources feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addGeoResourcesPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_geoResources_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_geoResources_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__GEO_RESOURCES, false, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Catalog Ref feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addCatalogRefPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_catalogRef_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_catalogRef_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__CATALOG_REF, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Filter feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addFilterPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_filter_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_filter_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__FILTER, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Status feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addStatusPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_status_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_status_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__STATUS, true, false, false,
ItemPropertyDescriptor.INTEGRAL_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the CRS feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addCRSPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_cRS_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_cRS_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__CRS, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Properties feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addPropertiesPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_properties_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_properties_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__PROPERTIES, false, false, false, null, null,
null));
}
/**
* This adds a property descriptor for the Colour Scheme feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addColourSchemePropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_colourScheme_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_colourScheme_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__COLOUR_SCHEME, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Default Color feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addDefaultColorPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_defaultColor_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_defaultColor_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__DEFAULT_COLOR, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Feature Changes feature.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
protected void addFeatureChangesPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_featureChanges_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_featureChanges_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__FEATURE_CHANGES, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Min Scale Denominator feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addMinScaleDenominatorPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_minScaleDenominator_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_minScaleDenominator_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__MIN_SCALE_DENOMINATOR, true, false, false,
ItemPropertyDescriptor.REAL_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Max Scale Denominator feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addMaxScaleDenominatorPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_maxScaleDenominator_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_maxScaleDenominator_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__MAX_SCALE_DENOMINATOR, true, false, false,
ItemPropertyDescriptor.REAL_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Shown feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addShownPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_shown_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_shown_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__SHOWN, true, false, false,
ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE, null, null));
}
/**
* This adds a property descriptor for the Icon feature.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void addIconPropertyDescriptor(Object object) {
itemPropertyDescriptors
.add(createItemPropertyDescriptor(
((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(),
getResourceLocator(),
getString("_UI_Layer_icon_feature"), //$NON-NLS-1$
getString(
"_UI_PropertyDescriptor_description", "_UI_Layer_icon_feature", "_UI_Layer_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ProjectPackage.Literals.LAYER__ICON, true, false, false,
ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
}
/**
* This specifies how to implement {@link #getChildren} and is used to deduce an appropriate
* feature for an {@link org.eclipse.emf.edit.command.AddCommand},
* {@link org.eclipse.emf.edit.command.RemoveCommand} or
* {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @generated NOT
*/
public Collection getChildrenFeatures(Object object) {
if (childrenFeatures == null) {
super.getChildrenFeatures(object);
}
return childrenFeatures;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected EStructuralFeature getChildFeature(Object object, Object child) {
// Check the type of the specified child object and return the proper feature to use for
// adding (see {@link AddCommand}) it as a child.
return super.getChildFeature(object, child);
}
private Map<Layer, Data> cache = new HashMap<Layer, Data>();
private static class Data {
ImageDescriptor desc;
Image image;
public Data(ImageDescriptor desc, Image image2) {
super();
this.desc = desc;
image = image2;
}
@Override
public int hashCode() {
final int PRIME = 31;
int result = 1;
result = PRIME * result + ((desc == null) ? 0 : desc.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final Data other = (Data) obj;
if (desc == null) {
if (other.desc != null)
return false;
} else if (!desc.equals(other.desc))
return false;
return true;
}
}
/**
* This returns Layer.gif. <!-- begin-user-doc --> Returns layers glyph property, requesting WMS
* Legend Graphic will be handled by a decorator. <!-- end-user-doc -->
*
* @generated NOT
*/
public Object getImage(Object object) {
Layer layer = (Layer) object;
// Check for generated image - generated by our decorators
// (lightweight decorators only seem to work with ImageDecorator)
//
// Decorator should try out any icon given to it by a third party and make us a image
// (We don't want the ImageDescriptor to block on an external WMS)
//
ImageDescriptor image = layer.getIcon();
if (image == null) {
image = (ImageDescriptor) layer.getProperties().get(GENERATED_ICON);
}
int outOfScaleModifier = SWT.IMAGE_DISABLE;
if (image == null) {
Object object2 = ProjectEditPlugin.INSTANCE.getImage("full/obj16/Layer");
if (object2 instanceof ImageDescriptor) {
image = (ImageDescriptor) object2;
} else {
if (object2 instanceof Image) {
image = ImageDescriptor.createFromImage((Image) object2);
} else {
return object2;
}
}
}
if (outOfScale(layer)) {
image = ImageDescriptor.createWithFlags(image, outOfScaleModifier);
}
return image; //$NON-NLS-1$
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected boolean shouldComposeCreationImage() {
return true;
}
@Override
public void dispose() {
Collection<Data> values = cache.values();
for (Data data : values) {
try {
if (data.image != null && !data.image.isDisposed())
data.image.dispose();
} catch (Throwable e) {
ProjectEditPlugin.log("Error disposing LayerItemProvider", e); //$NON-NLS-1$
}
}
cache.clear();
super.dispose();
}
/**
* This returns the label text for the adapted class. <!-- begin-user-doc --> Makes use of layer
* label, will use name of GeoResource URL by default. A decorator can request the GeoResoruce's
* title in thread. <!-- end-user-doc -->
*
* @generated NOT
*/
public String getText(Object object) {
Layer layer = (Layer) object;
String label = layer.getName();
if (label != null && label.length() != 0)
return label;
String title = (String) layer.getProperties().get("generated title"); //$NON-NLS-1$
if (title != null)
return title;
// Okay have a default
//
// return "Untitled";
return "Layer";
}
/**
* This handles model notifications by calling {@link #updateChildren} to update any cached
* children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated NOT
*/
public void notifyChanged(Notification notification) {
updateChildren(notification);
switch (notification.getFeatureID(Layer.class)) {
case ProjectPackage.LAYER__NAME:
case ProjectPackage.LAYER__ID:
case ProjectPackage.LAYER__GEO_RESOURCE:
case ProjectPackage.LAYER__PROPERTIES:
case ProjectPackage.LAYER__STATUS:
case ProjectPackage.LAYER__ICON:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(),
false, true));
return;
case ProjectPackage.LAYER__ZORDER:
fireNotifyChanged(new ViewerNotification(notification,
((ILayer) notification.getNotifier()).getMap(), true, false));
return;
case ProjectPackage.LAYER__STYLE_BLACKBOARD:
fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(),
true, false));
return;
}
super.notifyChanged(notification);
}
/**
* Return the resource locator for this item provider's resources.
* <!-- begin-user-doc --> <!--
* end-user-doc -->
* @generated
*/
@Override
public ResourceLocator getResourceLocator() {
return ProjectEditPlugin.INSTANCE;
}
public Color getBackground(Object element) {
if (element instanceof LayerImpl) {
ScopedPreferenceStore store = ProjectPlugin.getPlugin().getPreferenceStore();
String highlightPref = store.getString(PreferenceConstants.P_HIGHLIGHT);
if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_NONE)) {
return null;
}
LayerImpl layer = (LayerImpl) element;
java.awt.Color awtColor = layer.getDefaultColor();
if (awtColor == null)
return null;
if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_FOREGROUND)) {
return null; //not used yet (flip between black and white?)
} else if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_BACKGROUND)) {
return new Color(PlatformUI.getWorkbench().getDisplay(), awtColor.getRed(),
awtColor.getGreen(), awtColor.getBlue());
}
}
return null;
}
public Color getForeground(Object element) {
if (element instanceof LayerImpl) {
LayerImpl layer = (LayerImpl) element;
Color systemColor = Display.getCurrent().getSystemColor(SWT.COLOR_GRAY);
if (outOfScale(layer)) {
return systemColor;
}
IMap map = layer.getMap();
if (map == null)
return null;
boolean mylarOnAndAffectingLayer = mylarOnAndAffectingLayer(layer, map);
ScopedPreferenceStore store = ProjectPlugin.getPlugin().getPreferenceStore();
String highlightPref = store.getString(PreferenceConstants.P_HIGHLIGHT);
if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_NONE)) {
if (mylarOnAndAffectingLayer)
return systemColor;
return null;
}
float mylarEffect = 1.0f;
java.awt.Color awtColor = layer.getDefaultColor();
if (awtColor == null)
return null;
if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_FOREGROUND)) {
return new Color(PlatformUI.getWorkbench().getDisplay(), (int) mylarEffect
* awtColor.getRed(), (int) mylarEffect * awtColor.getGreen(),
(int) mylarEffect * awtColor.getBlue());
} else if (highlightPref.equals(PreferenceConstants.P_HIGHLIGHT_BACKGROUND)) {
if (awtColor.getRed() + awtColor.getGreen() + awtColor.getBlue() > 512) {
if (mylarOnAndAffectingLayer) {
return systemColor;
} else {
return Display.getCurrent().getSystemColor(SWT.COLOR_BLACK);
}
} else {
return new Color(PlatformUI.getWorkbench().getDisplay(),
(int) mylarEffect * 255, (int) mylarEffect * 255,
(int) mylarEffect * 255);
}
}
}
return null;
}
private boolean outOfScale(Layer layer) {
try {
Set<Range> scales = layer.getScaleRange();
if (scales.isEmpty()) {
return false;
}
for (Range range : scales) {
if (range.contains(layer.getMap().getViewportModel().getScaleDenominator())) {
return false;
}
}
return true;
} catch (Throwable t) {
ProjectPlugin.log("Could not aquire scale range", t);
return false;
}
}
/**
* Returns true if mylar is "on" for the given layer. "on" means that
* the layer should be greyed out.
*
* <p>
* In the case of composite layers (wms for example); all layers associated
* with the context should be "on"; which is why function thing needs to know about
* the renderers.
* </p>
*
* @param layer
* @param map
*
* @return if mylar is turned on and it is affecting (greying out) the current layer
*/
private boolean mylarOnAndAffectingLayer(LayerImpl layer, IMap map) {
//look at blackboard for mylar flag
Object mylar = map.getBlackboard().get("MYLAR"); //$NON-NLS-1$
boolean mylarIsOn = mylar != null && ((Boolean) mylar).booleanValue();
if (mylarIsOn) {
ILayer selectedLayer = map.getEditManager().getSelectedLayer();
if (map.getRenderManager() == null) {
return false;
}
return !map.getRenderManager().areLayersRelatedByContext(layer, selectedLayer);
}
return mylarIsOn;
}
}