platform/platform-api/src/com/intellij/ui/EdgeBorder.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.ui;
  17
  18 import com.intellij.util.ui.UIUtil;
  19
  20 import javax.swing.*;
  21 import javax.swing.border.Border;
  22 import java.awt.*;
  23
  24 public class EdgeBorder implements Border {
  25   public static final int EDGE_RIGHT = 61440;
  26   public static final int EDGE_BOTTOM = 3840;
  27   public static final int EDGE_LEFT = 240;
  28   public static final int EDGE_TOP = 15;
  29   public static final int EDGE_ALL = 65535;
  30   private final Insets myInsets;
  31   private final int b;
  32
  33   public EdgeBorder(int i) {
  34     myInsets = new Insets(2, 2, 2, 2);
  35     b = i;
  36     recalcInsets();
  37   }
  38
  39   public boolean isBorderOpaque() {
  40     return true;
  41   }
  42
  43   public Insets getBorderInsets(Component component) {
  44     return myInsets;
  45   }
  46
  47   public void paintBorder(Component component, Graphics g, int x, int y, int width, int height) {
  48     java.awt.Color color = UIUtil.getSeparatorShadow();
  49     java.awt.Color color1 = UIUtil.getSeparatorHighlight();
  50     java.awt.Color color2 = g.getColor();
  51     if ((b & 0xf) != 0){
  52       g.setColor(color);
  53       UIUtil.drawLine(g, x, y, (x + width) - 1, y);
  54       g.setColor(color1);
  55       UIUtil.drawLine(g, x, y + 1, (x + width) - 1, y + 1);
  56     }
  57     if ((b & 0xf0) != 0){
  58       g.setColor(color);
  59       UIUtil.drawLine(g, x, y, x, (y + height) - 1);
  60       g.setColor(color1);
  61       UIUtil.drawLine(g, x + 1, y, x + 1, (y + height) - 1);
  62     }
  63     if ((b & 0xf00) != 0){
  64       g.setColor(color);
  65       UIUtil.drawLine(g, x, (y + height) - 2, (x + width) - 1, (y + height) - 2);
  66       g.setColor(color1);
  67       UIUtil.drawLine(g, x, (y + height) - 1, (x + width) - 1, (y + height) - 1);
  68     }
  69     if ((b & 0xf000) != 0){
  70       g.setColor(color1);
  71       UIUtil.drawLine(g, (x + width) + 1, y, (x + width) + 1, (y + height) - 1);
  72       g.setColor(color);
  73       UIUtil.drawLine(g, (x + width), y, (x + width), (y + height) - 1);
  74     }
  75     g.setColor(color2);
  76   }
  77
  78   protected void recalcInsets() {
  79     myInsets.top = (b & 0xf) == 0 ? 0 : 2;
  80     myInsets.left = (b & 0xf0) == 0 ? 0 : 2;
  81     myInsets.bottom = (b & 0xf00) == 0 ? 0 : 2;
  82     myInsets.right = (b & 0xf000) == 0 ? 0 : 2;
  83   }
  84 }