ToolBarPanel.java

package uk.org.squirm3.ui.toolbar;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Insets;

import javax.swing.Action;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JPanel;

import org.springframework.beans.factory.annotation.Qualifier;

import uk.org.squirm3.ui.toolbar.navigation.LevelPicker;
import uk.org.squirm3.ui.toolbar.simulation.SpeedPanel;

public class ToolBarPanel extends JPanel {
    private static final long serialVersionUID = 1L;
    private static final Color BACKGROUND = new Color(255, 255, 225);

    public ToolBarPanel(
            @Qualifier("runSimulationAction") final Action runSimulationAction,
            @Qualifier("stopSimulationAction") final Action stopSimulationAction,
            @Qualifier("resetSimulationAction") final Action resetSimulationAction,
            final SpeedPanel speedPanel,
            @Qualifier("firstLevelAction") final Action firstLevelAction,
            @Qualifier("previousLevelAction") final Action previousLevelAction,
            final LevelPicker levelPicker,
            @Qualifier("nextLevelAction") final Action nextLevelAction,
            @Qualifier("lastLevelAction") final Action lastLevelAction,
            @Qualifier("aboutAction") final Action aboutAction) {

        setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
        setBackground(BACKGROUND);

        addActions(stopSimulationAction, runSimulationAction,
                resetSimulationAction);

        addGlueSeparartor(1);

        speedPanel.setBackground(BACKGROUND);
        add(speedPanel);

        addGlueSeparartor(2);

        addActions(firstLevelAction, previousLevelAction);
        levelPicker.setMaximumSize(new Dimension(150, 80));
        add(levelPicker);
        addActions(nextLevelAction, lastLevelAction);

        addGlueSeparartor(6);

        addActions(aboutAction);
    }

    /**
     * Add all provided actions as standard {@link JButton}s.
     */
    private void addActions(final Action... actions) {
        for (final Action action : actions) {
            add(createIconButton(action));
        }
    }

    /**
     * Add a glue component having the provided strength. The higher the
     * strength, the higher free space the glue will take with regards to other
     * components.
     */
    private void addGlueSeparartor(final int strenght) {
        for (int i = 0; i < strenght; i++) {
            add(Box.createHorizontalGlue());
        }
    }

    /**
     * @return a standard {@link JButton}n for this toolbar created from the
     *         provided {@link Action}
     */
    public static JButton createIconButton(final Action action) {
        final JButton button = new JButton(action);
        button.setMargin(new Insets(-3, -3, -3, -3));
        button.setBorderPainted(false);
        button.setBackground(BACKGROUND);
        return button;
    }

}