freeseawind.lf.basic.rootpane.LuckBgPanelLayout Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of littleluck Show documentation
Java Swing cross platform LookAndFeel
The newest version!
package freeseawind.lf.basic.rootpane;

import java.awt.Container;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.Rectangle;

import javax.swing.JMenuBar;
import javax.swing.JRootPane;

import freeseawind.lf.layout.AbstractLayout;

/**
 * RootPane背景面板布局类。
 * 
 * A {@link LuckBackgroundPanel} layout manger implement class.
 *
 * @author freeseawind@github
 * @version 1.0
 */
public class LuckBgPanelLayout extends AbstractLayout
{
    public void layoutContainer(Container parent)
    {
        LuckBackgroundPanel root = (LuckBackgroundPanel) parent;

        Rectangle bound = root.getBounds();

        Insets inset = root.getInsets();

        // 计算内容面板实际宽度, 减去左右边框面积
        // Calculate the actual width
        int w = bound.width - inset.right - inset.left;

        // 计算内容面板实际高度, 减去上下边框面积
        // Calculate the actual height
        int h = bound.height - inset.top - inset.bottom;

        int nextY = inset.top;

        // 避免无用的绘制
        // avoid useless draw
        if (w <= 0 || h <= 0)
        {
            return;
        }

        // 布局标题面板
        // layout title panel
        LuckTitlePanel titlePanel = root.getTitlePanel();

        // 计算标题面板的高度，和下一个面板的起始y坐标
        // Calculate the height of the title of the panel, and a panel at the
        // start of the y coordinate
        if (root.getRootPane() != null && titlePanel != null
                && JRootPane.NONE != root.getRootPane().getWindowDecorationStyle())
        {
            titlePanel.setBounds(inset.left, inset.top, w, titlePanel.getHeight());

            nextY += titlePanel.getHeight();
        }

        // 布局JMenuBar
        // layout JMenuBar
        JMenuBar menuBar = root.getRootPane().getJMenuBar();

        if(menuBar != null && menuBar.isVisible())
        {
        	root.installJMenubar(menuBar);

        	menuBar.setBounds(inset.left, nextY, w, menuBar.getPreferredSize().height);

            nextY += menuBar.getPreferredSize().getHeight();
        }

        //
        if(menuBar == null || !menuBar.isVisible())
        {
        	root.uninstallMenubar(menuBar == null);
        }

        // 布局内容面板
        // layout contentPane
        Container contentPane = root.getContentPane();

        contentPane.setBounds(inset.left, nextY, w, h - nextY);
    }

    public Dimension preferredLayoutSize(Container parent)
    {
        Insets insets = parent.getInsets();

        LuckBackgroundPanel baPanel = (LuckBackgroundPanel) parent;

        int h = 0;

        if (baPanel.getRootPane() != null && JRootPane.NONE != baPanel
                .getRootPane().getWindowDecorationStyle())
        {
            Dimension titleDm = baPanel.getTitlePanel().getPreferredSize();

            h += titleDm.height;
        }

        if (baPanel.getJMenuBar() != null && baPanel.getJMenuBar().isVisible())
        {
            Dimension menuBarDm = baPanel.getRootPane().getJMenuBar().getPreferredSize();

            h += menuBarDm.height;
        }

        Dimension contentDm = baPanel.getContentPane().getPreferredSize();

        h += contentDm.height;

        return getDimension(insets, contentDm.width, h);
    }

    public Dimension minimumLayoutSize(Container parent)
    {
        Insets insets = parent.getInsets();

        LuckBackgroundPanel baPanel = (LuckBackgroundPanel) parent;

        int h = 0;

        if (JRootPane.NONE != baPanel.getRootPane().getWindowDecorationStyle())
        {
            Dimension titleDm = baPanel.getTitlePanel().getMinimumSize();

            h += titleDm.height;
        }

        if (baPanel.getRootPane().getJMenuBar() != null
                && baPanel.getRootPane().getJMenuBar().isVisible())
        {
            Dimension menuBarDm = baPanel.getRootPane().getJMenuBar().getMinimumSize();

            h += menuBarDm.height;
        }

        Dimension contentDm = baPanel.getContentPane().getMinimumSize();

        h += contentDm.height;

        return getDimension(insets, contentDm.width, h);
    }

    public Dimension maximumLayoutSize(Container parent)
    {
        Insets insets = parent.getInsets();

        LuckBackgroundPanel baPanel = (LuckBackgroundPanel) parent;

        int h = 0;

        if (JRootPane.NONE != baPanel.getRootPane().getWindowDecorationStyle())
        {
            Dimension titleDm = baPanel.getTitlePanel().getMaximumSize();

            h += titleDm.height;
        }

        if (baPanel.getRootPane().getJMenuBar() != null
                && baPanel.getRootPane().getJMenuBar().isVisible())
        {
            Dimension menuBarDm = baPanel.getRootPane().getJMenuBar().getMaximumSize();

            h += menuBarDm.height;
        }

        Dimension contentDm = baPanel.getContentPane().getMaximumSize();

        h += contentDm.height;

        return getDimension(insets, contentDm.width, h);
    }
}