CachingIconManager.java

package jetbrains.mps.ide.icons;

/*Generated by MPS */

import jetbrains.mps.util.annotation.ToRemove;
import java.util.Map;
import javax.swing.Icon;
import jetbrains.mps.internal.collections.runtime.MapSequence;
import java.util.HashMap;
import org.jetbrains.mps.openapi.language.SAbstractConcept;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.model.SNode;
import jetbrains.mps.lang.smodel.generator.smodelAdapter.SNodeOperations;
import jetbrains.mps.project.AbstractModule;
import jetbrains.mps.util.MacrosFactory;
import jetbrains.mps.util.MacroHelper;
import org.jetbrains.annotations.NonNls;
import jetbrains.mps.vfs.IFile;
import jetbrains.mps.vfs.FileSystem;
import com.intellij.openapi.util.IconLoader;
import java.net.MalformedURLException;

/**
 * 
 * @deprecated use BaseIconManager instead
 */
@Deprecated
@ToRemove(version = 3.5)
public class CachingIconManager extends BaseIconManager {
  private Map<String, Icon> myPathToIcon = MapSequence.fromMap(new HashMap<String, Icon>());

  public Icon getConceptIcon(SAbstractConcept concept) {
    return super.getIconFor(concept);
  }

  public Icon getNodeIcon(@NotNull SNode node) {
    return super.getIconFor(node);
  }

  private Icon getIcon(@NotNull SNode conceptDeclaration) {
    return super.getIconFor(SNodeOperations.asSConcept(conceptDeclaration));
  }

  public Icon getIcon(AbstractModule module, String path) {
    String iconPath = expandPath(module, path);
    if (iconPath == null) {
      return null;
    }
    return getIcon(iconPath);
  }

  private String expandPath(AbstractModule module, String path) {
    if (path == null || !(MacrosFactory.containsMacro(path))) {
      // Don't bother looking up MacroHelper if there is nothing to expand anyway 
      return path;
    }

    if (module == null) {
      return null;
    }

    MacroHelper macroHelper = MacrosFactory.forModule(module);
    if (macroHelper == null) {
      return null;
    }

    return macroHelper.expandPath(path);
  }

  private Icon getIcon(@NonNls String iconPath) {
    if (!(MapSequence.fromMap(myPathToIcon).containsKey(iconPath))) {
      IFile file = FileSystem.getInstance().getFileByPath(iconPath);
      MapSequence.fromMap(myPathToIcon).put(iconPath, getIcon(file));
    }
    return MapSequence.fromMap(myPathToIcon).get(iconPath);
  }

  private Icon getIcon(IFile file) {
    try {
      return IconLoader.findIcon(file.getUrl(), false);
    } catch (MalformedURLException e) {
      return null;
    }
  }
}