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/*
* Copyright 2000-2009 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.uiDesigner;
import com.intellij.util.ui.UIUtil;
import java.awt.*;
/**
* @author Anton Katilin
* @author Vladimir Kondratyev
*/
public final class VSpacer extends DesignSpacer{
public VSpacer(){
setSize(getHandleWidth(), 50);
}
private static int getHandleWidth(){
return HANDLE_ATOM_HEIGHT*3 + HANDLE_ATOM_SPACE*2;
}
private static int getHandleHeight(){
return HANDLE_ATOM_WIDTH;
}
protected void paintComponent(final Graphics g){
final int handleHeight=getHandleHeight();
final int handleWidth=getHandleWidth();
// Paint top handle
final int x=(getWidth()-handleWidth)/2;
drawHandle(g,x,0);
g.setColor(ourColor1);
UIUtil.drawLine(g, x + handleWidth / 2, handleHeight, x + handleWidth / 2, handleHeight + 1);
// Paint bottom handle
final int y=getHeight()-handleHeight-1;
drawHandle(g,x,y);
UIUtil.drawLine(g, x + handleWidth / 2, y - 2, x + handleWidth / 2, y);
g.setColor(ourColor1);
// Draw spring
drawSpring(g,x+handleWidth/2,handleHeight+1,getHeight()-2*handleHeight-4);
}
/**
* Paints small spacer's haldle. <code>(x,y)</code> is a top
* left point of a handle.
*/
private static void drawHandle(final Graphics g,int x,final int y){
g.setColor(ourColor1);
g.drawRect(x,y,HANDLE_ATOM_HEIGHT-1,HANDLE_ATOM_WIDTH-1);
UIUtil.drawLine(g, x + HANDLE_ATOM_HEIGHT, y + HANDLE_ATOM_WIDTH / 2, x + HANDLE_ATOM_HEIGHT + HANDLE_ATOM_SPACE - 1,
y + HANDLE_ATOM_WIDTH / 2);
x+=HANDLE_ATOM_HEIGHT+HANDLE_ATOM_SPACE;
g.drawRect(x,y,HANDLE_ATOM_HEIGHT-1,HANDLE_ATOM_WIDTH-1);
UIUtil.drawLine(g, x + HANDLE_ATOM_HEIGHT, y + HANDLE_ATOM_WIDTH / 2, x + HANDLE_ATOM_HEIGHT + HANDLE_ATOM_SPACE - 1,
y + HANDLE_ATOM_WIDTH / 2);
x+=HANDLE_ATOM_HEIGHT+HANDLE_ATOM_SPACE;
g.drawRect(x,y,HANDLE_ATOM_HEIGHT-1,HANDLE_ATOM_WIDTH-1);
}
private static void drawSpring(final Graphics g,final int x,final int y,final int height){
for(int _y=y;_y<y+height-1;_y+=SPRING_PRERIOD){
drawSpringPeriod(g,x,_y);
}
}
private static void drawSpringPeriod(final Graphics g,final int x,final int y){
g.setColor(ourColor2);
UIUtil.drawLine(g, x + 1, y, x + 2, y);
UIUtil.drawLine(g, x, y + 1, x, y + 1);
UIUtil.drawLine(g, x - 1, y + 2, x - 2, y + 2);
g.setColor(ourColor3);
UIUtil.drawLine(g, x, y + 3, x, y + 3);
}
public Dimension getMinimumSize(){
return new Dimension(getHandleWidth(),getHandleHeight()*2+SPRING_PRERIOD);
}
}
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