VirtualFiles with metadata in the path

platform/lang-api/src/com/intellij/openapi/project/ProjectUtil.java

@@ -22,6 +22,7 @@ package com.intellij.openapi.project;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.module.ModuleUtil;
 import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.vfs.VirtualFilePathWrapper;
 import org.jetbrains.annotations.Nullable;
 
 public class ProjectUtil {
@@ -29,6 +30,9 @@ public class ProjectUtil {
   }
 
   public static String calcRelativeToProjectPath(final VirtualFile file, final Project project) {
+    if (file instanceof VirtualFilePathWrapper) {
+      return ((VirtualFilePathWrapper)file).getPresentablePath();
+    }    
     String url = file.getPresentableUrl();
     if (project == null) {
       return url;
@@ -52,4 +56,4 @@ public class ProjectUtil {
   public static Project guessProjectForFile(VirtualFile file) {
     return ProjectLocator.getInstance().guessProjectForFile(file);
   }
-}
+}

platform/platform-api/src/com/intellij/openapi/vfs/VirtualFilePathWrapper.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2000-2010 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.openapi.vfs;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * For virtual files containing meta information in the path. Like,
+ * <code>x=3746374;y=738495;size=45\id=6729304\id=34343\id=656543</code>
+ * To wrap such a path into compact form implement getPresentablePath and it
+ * will be used instead of <code>VirtualFile.getPath()</code>
+ *
+ * @author Konstantin Bulenkov
+ * @see VirtualFile#getPath() 
+ */
+public interface VirtualFilePathWrapper {
+  @NotNull
+  String getPresentablePath();
+}

platform/platform-impl/src/com/intellij/openapi/wm/impl/PlatformFrameTitleBuilder.java

@@ -17,6 +17,7 @@ package com.intellij.openapi.wm.impl;
 
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.vfs.VirtualFilePathWrapper;
 import com.intellij.platform.ProjectBaseDirectory;
 
 /**
@@ -32,6 +33,9 @@ public class PlatformFrameTitleBuilder extends FrameTitleBuilder {
   }
 
   public String getFileTitle(final Project project, final VirtualFile file) {
+    if (file instanceof VirtualFilePathWrapper) {
+      return ((VirtualFilePathWrapper)file).getPresentablePath();
+    }
     String url = file.getPresentableUrl();
     VirtualFile baseDir = ProjectBaseDirectory.getInstance(project).getBaseDir();
     if (baseDir == null) baseDir = project.getBaseDir();