DarculaEditorTextFieldBorder.java

/*
 * Copyright 2000-2015 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.ide.ui.laf.darcula.ui;

import com.intellij.ide.ui.laf.darcula.DarculaUIUtil;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ex.EditorEx;
import com.intellij.openapi.editor.ex.FocusChangeListener;
import com.intellij.ui.EditorTextField;
import com.intellij.ui.Gray;
import com.intellij.ui.JBColor;
import com.intellij.util.ui.UIUtil;

import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.plaf.InsetsUIResource;
import java.awt.*;

/**
 * @author Konstantin Bulenkov
 */
public class DarculaEditorTextFieldBorder implements Border {
  protected final JComponent editorTextField;

  public DarculaEditorTextFieldBorder() {
    this(null, null);
  }

  public DarculaEditorTextFieldBorder(EditorTextField editorTextField, EditorEx editor) {
    this.editorTextField = editorTextField;
    if (editorTextField != null && editor != null) {
      editor.addFocusListener(new FocusChangeListener() {
        @Override
        public void focusGained(Editor editor) {
          editorTextField.repaint();
        }

        @Override
        public void focusLost(Editor editor) {
          editorTextField.repaint();
        }
      });
    }
  }

  @Override
  public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
    if (isComboBoxEditor(c) /*|| isCellEditor(c)*/) {
      g.setColor(c.getBackground());
      g.fillRect(x, y, width, height);
      return;
    }
    final EditorTextField textField = UIUtil.getParentOfType(EditorTextField.class, c);
    if (textField == null) return;

    final Rectangle r = new Rectangle(x + 1, y + 1, width - 2, height - 2);

    if (c.isOpaque()) {
      g.setColor(UIUtil.getPanelBackground());
      g.fillRect(x, y, width, height);
    }

    g.setColor(c.getBackground());
    g.fillRect(r.x, r.y, r.width, r.height);

    if (!textField.isEnabled()) {
      ((Graphics2D)g).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.4f));
    }

    if (textField.isEnabled() && textField.isVisible() && textField.getFocusTarget().hasFocus()) {
      DarculaUIUtil.paintFocusRing(g, new Rectangle(r.x + 1, r.y + 1, r.width - 2, r.height - 2));
    } else {
      g.setColor(new JBColor(Gray._150, Gray._100));
      g.drawRect(r.x, r.y, r.width, r.height);
    }
  }

  @Override
  public Insets getBorderInsets(Component c) {
    if (isComboBoxEditor(c) /*|| isCellEditor(c)*/) {
      return new InsetsUIResource(2, 3, 2, 3);
    }
    return new InsetsUIResource(4, 7, 4, 7);
  }

  @Override
  public boolean isBorderOpaque() {
    return true;
  }

  public static boolean isComboBoxEditor(Component c) {
    return UIUtil.getParentOfType(JComboBox.class, c) != null;
  }

  //public static boolean isCellEditor(Component c) {
  //  return UIUtil.getParentOfType(JTable.class, c) != null;
  //}
}