platform/platform-impl/src/com/intellij/openapi/wm/impl/status/PositionPanel.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.openapi.wm.impl.status;
  17
  18 import com.intellij.ide.DataManager;
  19 import com.intellij.ide.util.GotoLineNumberDialog;
  20 import com.intellij.openapi.actionSystem.PlatformDataKeys;
  21 import com.intellij.openapi.command.CommandProcessor;
  22 import com.intellij.openapi.editor.Editor;
  23 import com.intellij.openapi.editor.LogicalPosition;
  24 import com.intellij.openapi.editor.SelectionModel;
  25 import com.intellij.openapi.fileEditor.FileEditorManager;
  26 import com.intellij.openapi.fileEditor.ex.IdeDocumentHistory;
  27 import com.intellij.openapi.project.Project;
  28 import com.intellij.openapi.wm.StatusBar;
  29 import com.intellij.ui.UIBundle;
  30
  31 import javax.swing.*;
  32 import java.awt.event.MouseAdapter;
  33 import java.awt.event.MouseEvent;
  34
  35 class PositionPanel extends TextPanel implements StatusBarPatch {
  36   public PositionPanel(StatusBar statusBar) {
  37     super(false, "#############");
  38
  39     addMouseListener(new MouseAdapter() {
  40       public void mouseClicked(final MouseEvent e) {
  41         if (e.getClickCount() == 2) {
  42           final Project project = getProject();
  43           if (project == null) return;
  44           final Editor editor = getEditor(project);
  45           if (editor == null) return;
  46           final CommandProcessor processor = CommandProcessor.getInstance();
  47           processor.executeCommand(
  48               project, new Runnable(){
  49               public void run() {
  50                 final GotoLineNumberDialog dialog = new GotoLineNumberDialog(project, editor);
  51                 dialog.show();
  52                 IdeDocumentHistory.getInstance(project).includeCurrentCommandAsNavigation();
  53               }
  54             },
  55               UIBundle.message("go.to.line.command.name"),
  56             null
  57           );
  58         }
  59       }
  60     });
  61
  62     StatusBarTooltipper.install(this, statusBar);
  63   }
  64
  65   public JComponent getComponent() {
  66     return this;
  67   }
  68
  69   public String updateStatusBar(final Editor editor, final JComponent componentSelected) {
  70     if (editor != null) {
  71       SwingUtilities.invokeLater(new Runnable() {
  72         public void run() {
  73           if (!editor.isDisposed()) {
  74             StringBuilder message = new StringBuilder();
  75
  76             SelectionModel selectionModel = editor.getSelectionModel();
  77             if (selectionModel.hasBlockSelection()) {
  78               LogicalPosition start = selectionModel.getBlockStart();
  79               LogicalPosition end = selectionModel.getBlockEnd();
  80               appendLogicalPosition(start, message);
  81               message.append("-");
  82               appendLogicalPosition(new LogicalPosition(Math.abs(end.line - start.line), Math.abs(end.column - start.column) - 1), message);
  83             }
  84             else {
  85               LogicalPosition caret = editor.getCaretModel().getLogicalPosition();
  86
  87               appendLogicalPosition(caret, message);
  88               if (selectionModel.hasSelection()) {
  89                 int len = Math.abs(selectionModel.getSelectionStart() - selectionModel.getSelectionEnd());
  90                 message.append("/");
  91                 message.append(len);
  92               }
  93             }
  94
  95             setText(message.toString());
  96           }
  97         }
  98       });
  99       return UIBundle.message("go.to.line.command.double.click");
 100     }
 101     clear();
 102     return null;
 103   }
 104
 105   private static void appendLogicalPosition(LogicalPosition caret, StringBuilder message) {
 106     message.append(caret.line + 1);
 107     message.append(":");
 108     message.append(caret.column + 1);
 109   }
 110
 111   public void clear() {
 112     setText("");
 113   }
 114
 115   private static Editor getEditor(final Project project) {
 116     return FileEditorManager.getInstance(project).getSelectedTextEditor();
 117   }
 118
 119   private Project getProject() {
 120     return PlatformDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext(this));
 121   }
 122 }