TrivialLayout.java

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/*
 * TrivialLayout.java
 *
 * Created on 20. srpen 2003, 18:33
 */
package org.matveev.pomodoro4nb.controls.netbeans;

import java.awt.*;

/**
 * Trivial layout manager class used by the panels for selecting look and filter.  Simply uses the preferred size of the
 * first compnent and fills the rest of the space with the second, to the height of the tallest.
 *
 * @author Tim Boudreau
 */
final class TrivialLayout implements LayoutManager {

    public void addLayoutComponent(String name, Component comp) {
        //do nothing
    }

    public void removeLayoutComponent(Component comp) {
        //do nothing
    }

    public void layoutContainer(Container parent) {
        if (parent instanceof TapPanel) {
            layoutTapPanel((TapPanel) parent);
        } else {
            layoutComp(parent);
        }
    }

    /**
     * Standard layout for any container
     */
    private void layoutComp(Container parent) {
        Component[] c = parent.getComponents();
        if (c.length > 1) {
            Dimension d1 = c[0].getPreferredSize();
            Dimension d2 = c[1].getPreferredSize();
            int labely = 0;
            d1.width += 10; //Aqua displays elipsis
            if (d2.height > d1.height) {
                labely = (d2.height / 2) - (d1.height / 2);
            }
            if (parent.getWidth() - d1.width < d2.width) {
                c[0].setBounds(0, 0, 0, 0);
                c[1].setBounds(0, 0, parent.getWidth(), parent.getHeight());
            } else {
                c[0].setBounds(0, labely, d1.width, d1.height);
                c[1].setBounds(d1.width + 1, 0, parent.getWidth()
                        - d1.width, Math.min(parent.getHeight(),
                        d2.height));
            }
        }
    }

    /**
     * Layout for TapPanel, taking into account its minimumHeight
     */
    private void layoutTapPanel(TapPanel tp) {
        Component[] c = tp.getComponents();
        if (c.length > 1) {
            Dimension d1 = c[0].getPreferredSize();
            Dimension d2 = c[1].getPreferredSize();
            int labely = 0;
            if (d2.height > d1.height) {
                labely = ((d2.height / 2) - (d1.height / 2)) + 2; //+2 fudge factor for font baseline
            }

            if (tp.isExpanded()) {
                int top = tp.getOrientation() == tp.UP ? 0 : tp.getMinimumHeight();
                int height = Math.min(tp.getHeight()
                        - tp.getMinimumHeight(), d2.height);
                if (tp.getWidth() - d1.width < d2.width) {
                    c[0].setBounds(0, 0, 0, 0);
                    c[1].setBounds(0, top, tp.getWidth(), height);
                } else {
                    c[0].setBounds(0, top + labely, d1.width,
                            d1.height);
                    c[1].setBounds(d1.width + 1, top, tp.getWidth()
                            - d1.width, height);
                }
            } else {
                c[0].setBounds(0, 0, 0, 0);
                c[1].setBounds(0, 0, 0, 0);
            }
        }
    }

    public Dimension minimumLayoutSize(Container parent) {
        Dimension result = new Dimension(20, 10);
        Component[] c = parent.getComponents();
        TapPanel tp = (TapPanel) parent;
        if (c.length > 1) {
            Dimension d1 = c[0].getPreferredSize();
            Dimension d2 = c[1].getPreferredSize();
            result.width = d1.width + d2.width;
            result.height = tp.isExpanded() ? Math.max(d1.height,
                    d2.height)
                    + tp.getMinimumHeight() : tp.getMinimumHeight();
        }
        return result;
    }

    public Dimension preferredLayoutSize(Container parent) {
        return minimumLayoutSize(parent);
    }
}