CategoryWindow.java

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package com.arcle.rmt.superwaba.ui;

import waba.ui.ComboBox;
import waba.ui.Container;
import waba.ui.Window;
import waba.ui.Button;
import waba.ui.Event;
import waba.ui.ControlEvent;
import com.arcle.rmt.xplat.util.List;

public abstract class CategoryWindow extends CommandWindow {

    public CategoryWindow(String title) {
        super(title,TAB_ONLY_BORDER);
    }


    //-----------------------------------------------------------------------
    // New Abstract Methods

    protected abstract List createPanels();

    protected abstract String getPanelCaptionAt(int index);

    //-----------------------------------------------------------------------
    // Placeholder methods

    protected void onPanelSwitched() { }

    //-----------------------------------------------------------------------
    // Inherited Abstract Methods

    public abstract Button[] getCommandButtons();


    //-----------------------------------------------------------------------
    // Implemented Abstract Methods

    protected void initChildren() {
        panels = createPanels();
        cbSwitch = createCategoryComboBox(getPanelCaptions());
    }



    //-----------------------------------------------------------------------
    // Overridden Methods

    protected void layoutChildren() {
        super.layoutChildren();
        add(cbSwitch);
        cbSwitch.setRect(RIGHT, 0, PREFERRED, PREFERRED - 2);

    }

    protected void onPopup() {
        super.onPopup();
        switchPanel();
    }


    public void onEvent(Event event) {
        switch (event.type) {
        case ControlEvent.PRESSED:
            if (event.target == cbSwitch) {
                switchPanel();
                event.consumed = true;
            }
        }
    }

    //-----------------------------------------------------------------------
    // Own Protected Methods

    protected Container getPanelAt(int index) {
        return (Container) getPanels().get(index);
    }

    protected Container getActivePanel() {
        return activePanel;
    }

    protected int getPanelCount() {
        return getPanels().size();
    }

    protected void setActivePanel(int index) {
        cbSwitch.select(index);
        switchPanel();
    }


    //-----------------------------------------------------------------------
    // Own Private Methods


    private List getPanels() {
        return panels;
    }


    private String[] getPanelCaptions() {
        List panels = getPanels();
        String[] captions = new String[panels.size()];
        for (int i=0; i<captions.length; i++) {
            captions[i] = getPanelCaptionAt(i);
        }
        return captions;
    }

    private void switchPanel() {
        if(activePanel != null) {
            remove(activePanel);
        }

        int i = cbSwitch.getSelectedIndex();
        if(i < 0) {
            i = 0;
            cbSwitch.select(i);
        }

        activePanel = (Container) getPanels().get(i);
        add(activePanel);
        activePanel.setRect(LEFT, TOP, FILL, FILL - getBottomMargin() - 1);
        onPanelSwitched();
    }



    //-----------------------------------------------------------------------
    // Factory Methods


    protected ComboBox createCategoryComboBox(Object[] items) {
        return new ComboBox(items);
    }

    //-----------------------------------------------------------------------
    // Member Variables


    private Container activePanel = null;

    private ComboBox cbSwitch;

    private List panels;
}

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