From 787d5b13849ed68cc76f08ac7ebad45f0936dd92 Mon Sep 17 00:00:00 2001
From: Konstantin Bulenkov <kb@jetbrains.com>
Date: Wed, 28 Sep 2011 12:04:50 +0200
Subject: [PATCH] mouse sensitive editor IDEA-74912

---
 .../JavaChangeSignatureDialog.java                | 15 +++++++++++++--
 .../com/intellij/util/ui/table/JBListTable.java   | 15 ++++++++++++---
 .../intellij/util/ui/table/JBTableRowEditor.java  | 13 +++++++++++++
 3 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/java/java-impl/src/com/intellij/refactoring/changeSignature/JavaChangeSignatureDialog.java b/java/java-impl/src/com/intellij/refactoring/changeSignature/JavaChangeSignatureDialog.java
index d6bcabd0b824..f4ef291bd8ae 100644
--- a/java/java-impl/src/com/intellij/refactoring/changeSignature/JavaChangeSignatureDialog.java
+++ b/java/java-impl/src/com/intellij/refactoring/changeSignature/JavaChangeSignatureDialog.java
@@ -63,6 +63,7 @@ import javax.swing.table.TableColumn;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.MouseEvent;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -243,13 +244,19 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
     }
     return len;
   }
+  
+  private int getTypesColumnWidth() {
+    Font font = EditorColorsManager.getInstance().getGlobalScheme().getFont(EditorFontType.PLAIN);
+    font = new Font(font.getFontName(), font.getStyle(), 12);
+    return  (getTypesMaxLength() + 1)* Toolkit.getDefaultToolkit().getFontMetrics(font).stringWidth("W");
+  }
 
   @Override
   protected JBTableRowEditor getTableEditor(final JTable t, final ParameterTableModelItemBase<ParameterInfoImpl> item) {
     return new JBTableRowEditor() {
       private EditorTextField myTypeEditor;
       private EditorTextField myNameEditor;
-      private EditorTextField myDefaultValueEditor;
+      private EditorTextField myDefaultValueEditor;      
       private JCheckBox myAnyVar;
       
       @Override
@@ -321,7 +328,11 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
 
       @Override
       public JComponent getPreferredFocusedComponent() {
-        return myTypeEditor;
+        final MouseEvent me = getMouseEvent();
+        if (me == null) {
+          return myTypeEditor;
+        }
+        return me.getPoint().getX() <= getTypesColumnWidth() ? myTypeEditor : myNameEditor;
       }
 
       @Override
diff --git a/platform/platform-impl/src/com/intellij/util/ui/table/JBListTable.java b/platform/platform-impl/src/com/intellij/util/ui/table/JBListTable.java
index 743f7b2d6bb5..b6f16504ef0b 100644
--- a/platform/platform-impl/src/com/intellij/util/ui/table/JBListTable.java
+++ b/platform/platform-impl/src/com/intellij/util/ui/table/JBListTable.java
@@ -28,11 +28,10 @@ import javax.swing.table.TableCellEditor;
 import javax.swing.table.TableCellRenderer;
 import java.awt.*;
 import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
 import java.util.List;
 
-import static java.awt.event.KeyEvent.KEY_PRESSED;
-import static java.awt.event.KeyEvent.VK_ENTER;
-import static java.awt.event.KeyEvent.VK_TAB;
+import static java.awt.event.KeyEvent.*;
 
 /**
  * @author Konstantin Bulenkov
@@ -56,8 +55,11 @@ public abstract class JBListTable extends JPanel {
       }
     };
     mainTable = new JBTable(model) {
+      private MouseEvent myMouseEvent;
       @Override
       protected void processKeyEvent(KeyEvent e) {
+        myMouseEvent = null;
+        
         if (e.isAltDown()) return;
         //todo[kb] JBTabsImpl breaks focus traversal policy. Need a workaround here
         if (e.getKeyCode() == VK_TAB) {
@@ -76,6 +78,12 @@ public abstract class JBListTable extends JPanel {
         super.processKeyEvent(e);
       }
 
+      @Override
+      protected void processMouseEvent(MouseEvent e) {
+        myMouseEvent = e;
+        super.processMouseEvent(e);
+      }
+
       @Override
       public TableCellRenderer getCellRenderer(int row, int column) {
         return new DefaultTableCellRenderer() {
@@ -144,6 +152,7 @@ public abstract class JBListTable extends JPanel {
       public TableCellEditor getCellEditor(final int row, int column) {
         final JBTableRowEditor editor = getRowEditor(row);
         if (editor != null) {
+          editor.setMouseEvent(myMouseEvent);
           editor.prepareEditor(t, row);
           installPaddingAndBordersForEditors(editor);
           editor.setFocusCycleRoot(true);
diff --git a/platform/platform-impl/src/com/intellij/util/ui/table/JBTableRowEditor.java b/platform/platform-impl/src/com/intellij/util/ui/table/JBTableRowEditor.java
index 765a9862feef..c2d7f79a1ae8 100644
--- a/platform/platform-impl/src/com/intellij/util/ui/table/JBTableRowEditor.java
+++ b/platform/platform-impl/src/com/intellij/util/ui/table/JBTableRowEditor.java
@@ -16,13 +16,17 @@
 package com.intellij.util.ui.table;
 
 import com.intellij.openapi.wm.IdeFocusManager;
+import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
+import java.awt.event.MouseEvent;
 
 /**
  * @author Konstantin Bulenkov
  */
 public abstract class JBTableRowEditor extends JPanel {
+  private MouseEvent myMouseEvent;
+
   @Override
   public void addNotify() {
     super.addNotify();
@@ -32,6 +36,15 @@ public abstract class JBTableRowEditor extends JPanel {
     }
   }
 
+  @Nullable
+  public final MouseEvent getMouseEvent() {
+    return myMouseEvent;
+  }
+
+  public final void setMouseEvent(@Nullable MouseEvent e) {
+    myMouseEvent = e;
+  }
+
   public abstract void prepareEditor(JTable table, int row);
   public abstract JBTableRow getValue();
   public abstract JComponent getPreferredFocusedComponent();