plugins/ui-designer/src/com/intellij/uiDesigner/HSpacer.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.uiDesigner;
  17
  18 import com.intellij.util.ui.UIUtil;
  19
  20 import java.awt.*;
  21
  22 /**
  23  * @author Anton Katilin
  24  * @author Vladimir Kondratyev
  25  */
  26 public final class HSpacer extends DesignSpacer{
  27   public HSpacer(){
  28     setSize(50,getHandleHeight());
  29   }
  30
  31   protected void paintComponent(final Graphics g){
  32     final int handleHeight=getHandleHeight();
  33     final int handleWidth=getHandleWidth();
  34
  35     // Paint left handle
  36     final int y=(getHeight()-handleHeight)/2;
  37     drawHandle(g,0,y);
  38     g.setColor(ourColor1);
  39     UIUtil.drawLine(g, handleWidth, y + handleHeight / 2, handleWidth + 1, y + handleHeight / 2);
  40
  41     // Paint right handle
  42     final int x=getWidth()-handleWidth-1;
  43     drawHandle(g,x,y);
  44     UIUtil.drawLine(g, x, y + handleHeight / 2, x - 2, y + handleHeight / 2);
  45     g.setColor(ourColor1);
  46
  47     // Draw spring
  48     drawSpring(g,handleWidth+1,y+handleHeight/2,getWidth()-2*handleWidth-4);
  49   }
  50
  51   private static int getHandleWidth(){
  52     return HANDLE_ATOM_WIDTH;
  53   }
  54
  55   private static int getHandleHeight(){
  56     return HANDLE_ATOM_HEIGHT*3 + HANDLE_ATOM_SPACE*2;
  57   }
  58
  59   /**
  60    * Paints small spacer's haldle. <code>(x,y)</code> is a top
  61    * left point of a handle.
  62    */
  63   private static void drawHandle(final Graphics g,final int x,int y){
  64     g.setColor(ourColor1);
  65
  66     g.drawRect(x,y,HANDLE_ATOM_WIDTH-1,HANDLE_ATOM_HEIGHT-1);
  67     UIUtil.drawLine(g, x + HANDLE_ATOM_WIDTH / 2, y + HANDLE_ATOM_HEIGHT, x + HANDLE_ATOM_WIDTH / 2,
  68                     y + HANDLE_ATOM_HEIGHT + HANDLE_ATOM_SPACE - 1);
  69
  70     y+=HANDLE_ATOM_HEIGHT+HANDLE_ATOM_SPACE;
  71
  72     g.drawRect(x,y,HANDLE_ATOM_WIDTH-1,HANDLE_ATOM_HEIGHT-1);
  73     UIUtil.drawLine(g, x + HANDLE_ATOM_WIDTH / 2, y + HANDLE_ATOM_HEIGHT, x + HANDLE_ATOM_WIDTH / 2,
  74                     y + HANDLE_ATOM_HEIGHT + HANDLE_ATOM_SPACE - 1);
  75
  76     y+=HANDLE_ATOM_HEIGHT+HANDLE_ATOM_SPACE;
  77
  78     g.drawRect(x,y,HANDLE_ATOM_WIDTH-1,HANDLE_ATOM_HEIGHT-1);
  79   }
  80
  81   private static void drawSpring(final Graphics g,final int x,final int y,final int width){
  82     for(int _x=x;_x<x+width-1;_x+=SPRING_PRERIOD){
  83       drawSpringPeriod(g,_x,y);
  84     }
  85   }
  86
  87   private static void drawSpringPeriod(final Graphics g,final int x,final int y){
  88     g.setColor(ourColor2);
  89     UIUtil.drawLine(g, x, y - 1, x, y - 2);
  90     UIUtil.drawLine(g, x + 1, y, x + 1, y);
  91     UIUtil.drawLine(g, x + 2, y + 1, x + 2, y + 2);
  92
  93     g.setColor(ourColor3);
  94     UIUtil.drawLine(g, x + 3, y, x + 3, y);
  95   }
  96
  97   public Dimension getMinimumSize(){
  98     return new Dimension(getHandleWidth()*2+SPRING_PRERIOD,getHandleHeight());
  99   }
 100 }