Package org.eobjects.datacleaner.widgets.tabs

Source Code of org.eobjects.datacleaner.widgets.tabs.CloseableTabbedPaneMouseListener

/**
* eobjects.org DataCleaner
* Copyright (C) 2010 eobjects.org
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA  02110-1301  USA
*/
package org.eobjects.datacleaner.widgets.tabs;

import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

class CloseableTabbedPaneMouseListener extends MouseAdapter implements MouseMotionListener {

  private final CloseableTabbedPaneUI _tabbedPaneUI;
  private final CloseableTabbedPane _pane;
  private volatile int _closedIndex = -1;

  /**
   * @param closeableTabbedPaneUI
   */
  public CloseableTabbedPaneMouseListener(CloseableTabbedPaneUI closeableTabbedPaneUI, CloseableTabbedPane pane) {
    _tabbedPaneUI = closeableTabbedPaneUI;
    _pane = pane;
  }

  public int getClosedIndex() {
    return _closedIndex;
  }

  @Override
  public void mouseReleased(MouseEvent e) {
    _closedIndex = -1;
    _pane.repaint();
  }

  @Override
  public void mouseClicked(MouseEvent e) {
    final int button = e.getButton();
    if (button == MouseEvent.NOBUTTON) {
      return;
    }

    if (!_pane.isEnabled()) {
      return;
    }

    int clickedTabIndex = _tabbedPaneUI.tabForCoordinate(_pane, e.getX(), e.getY());

    if (clickedTabIndex == -1) {
      return;
    }

    // regular left click
    if (button == MouseEvent.BUTTON1) {

      // only allow closing windows on the same run (row of tabs) as the
      // selected tab
      int selectedIndex = _pane.getSelectedIndex();
      int runIndexOfSelectedTab = _tabbedPaneUI.getRunForTab(_pane.getTabCount(), selectedIndex);
      int runIndexOfClickedTab = _tabbedPaneUI.getRunForTab(_pane.getTabCount(), clickedTabIndex);
      if (runIndexOfClickedTab != runIndexOfSelectedTab) {
        return;
      }

      if (_pane.getUnclosables().contains(clickedTabIndex)) {
        return;
      }
      if (_pane.getSeparators().contains(clickedTabIndex)) {
        return;
      }

      Rectangle r = _tabbedPaneUI.closeRectFor(clickedTabIndex);
      // Check for mouse being in close box
      if (r.contains(new Point(e.getX(), e.getY()))) {
        // Send tab closed message
        _pane.closeTab(clickedTabIndex);
      }
    }

    // right click
    if (button == MouseEvent.BUTTON2 || button == MouseEvent.BUTTON3) {
      ActionListener actionListener = _pane.getRightClickActionListener(clickedTabIndex);
      if (actionListener != null) {
        actionListener.actionPerformed(new ActionEvent(e, clickedTabIndex, "right-click"));
      }
    }
  }

  @Override
  public void mousePressed(MouseEvent e) {
    if (!_pane.isEnabled()) {
      return;
    }
    if (e.getButton() != 1) {
      return;
    }
    int tabIndex = _tabbedPaneUI.tabForCoordinate(_pane, e.getX(), e.getY());

    if (tabIndex == -1) {
      return;
    }
    if (_pane.getUnclosables().contains(tabIndex)) {
      return;
    }
    if (_pane.getSeparators().contains(tabIndex)) {
      return;
    }

    Rectangle r = _tabbedPaneUI.closeRectFor(tabIndex);
    if (r.contains(new Point(e.getX(), e.getY()))) {
      _closedIndex = tabIndex;
    } else {
      _closedIndex = -1;
    }
    _pane.repaint();
  }

  public void mouseDragged(MouseEvent e) {
    mouseMoved(e);
    mousePressed(e);
  }

  public void mouseMoved(MouseEvent e) {
    if (_pane == null || !_pane.isEnabled()) {
      return;
    }
    int tabIndex = _tabbedPaneUI.tabForCoordinate(_pane, e.getX(), e.getY());
    if (tabIndex == -1) {
      return;
    }
    if (_pane.getUnclosables().contains(tabIndex)) {
      return;
    }
    if (_pane.getSeparators().contains(tabIndex)) {
      return;
    }

    Rectangle r = _tabbedPaneUI.closeRectFor(tabIndex);
    if (r.contains(new Point(e.getX(), e.getY()))) {
      _closedIndex = tabIndex;
    } else {
      _closedIndex = -1;
    }

    _pane.repaint();
  }
}
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