/*******************************************************************************
 * Copyright (c) 2000, 2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 * Port to the D programming language:
 *     Frank Benoit <benoit@tionex.de>
 *******************************************************************************/
module controlexample.ScaleTab;



import dwt.DWT;
import dwt.events.SelectionAdapter;
import dwt.events.SelectionEvent;
import dwt.layout.GridData;
import dwt.layout.GridLayout;
import dwt.widgets.Group;
import dwt.widgets.Scale;
import dwt.widgets.Spinner;
import dwt.widgets.Widget;

import controlexample.Tab;
import controlexample.ControlExample;
import controlexample.RangeTab;


class ScaleTab : RangeTab {
    /* Example widgets and groups that contain them */
    Scale scale1;
    Group scaleGroup;

    /* Spinner widgets added to the "Control" group */
    Spinner incrementSpinner, pageIncrementSpinner;

    /**
     * Creates the Tab within a given instance of ControlExample.
     */
    this(ControlExample instance) {
        super(instance);
    }

    /**
     * Creates the "Control" widget children.
     */
    void createControlWidgets () {
        super.createControlWidgets ();
        createIncrementGroup ();
        createPageIncrementGroup ();
    }

    /**
     * Creates the "Example" group.
     */
    void createExampleGroup () {
        super.createExampleGroup ();

        /* Create a group for the scale */
        scaleGroup = new Group (exampleGroup, DWT.NONE);
        scaleGroup.setLayout (new GridLayout ());
        scaleGroup.setLayoutData (new GridData (DWT.FILL, DWT.FILL, true, true));
        scaleGroup.setText ("Scale");

    }

    /**
     * Creates the "Example" widgets.
     */
    void createExampleWidgets () {

        /* Compute the widget style */
        int style = getDefaultStyle();
        if (horizontalButton.getSelection ()) style |= DWT.HORIZONTAL;
        if (verticalButton.getSelection ()) style |= DWT.VERTICAL;
        if (borderButton.getSelection ()) style |= DWT.BORDER;

        /* Create the example widgets */
        scale1 = new Scale (scaleGroup, style);
    }

    /**
     * Create a group of widgets to control the increment
     * attribute of the example widget.
     */
    void createIncrementGroup() {

        /* Create the group */
        Group incrementGroup = new Group (controlGroup, DWT.NONE);
        incrementGroup.setLayout (new GridLayout ());
        incrementGroup.setText (ControlExample.getResourceString("Increment"));
        incrementGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));

        /* Create the Spinner widget */
        incrementSpinner = new Spinner (incrementGroup, DWT.BORDER);
        incrementSpinner.setMaximum (100000);
        incrementSpinner.setSelection (getDefaultIncrement());
        incrementSpinner.setPageIncrement (100);
        incrementSpinner.setIncrement (1);
        incrementSpinner.setLayoutData (new GridData (DWT.FILL, DWT.CENTER, true, false));

        /* Add the listeners */
        incrementSpinner.addSelectionListener (new class() SelectionAdapter {
            public void widgetSelected (SelectionEvent e) {
                setWidgetIncrement ();
            }
        });
    }

    /**
     * Create a group of widgets to control the page increment
     * attribute of the example widget.
     */
    void createPageIncrementGroup() {

        /* Create the group */
        Group pageIncrementGroup = new Group (controlGroup, DWT.NONE);
        pageIncrementGroup.setLayout (new GridLayout ());
        pageIncrementGroup.setText (ControlExample.getResourceString("Page_Increment"));
        pageIncrementGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));

        /* Create the Spinner widget */
        pageIncrementSpinner = new Spinner (pageIncrementGroup, DWT.BORDER);
        pageIncrementSpinner.setMaximum (100000);
        pageIncrementSpinner.setSelection (getDefaultPageIncrement());
        pageIncrementSpinner.setPageIncrement (100);
        pageIncrementSpinner.setIncrement (1);
        pageIncrementSpinner.setLayoutData (new GridData (DWT.FILL, DWT.CENTER, true, false));

        /* Add the listeners */
        pageIncrementSpinner.addSelectionListener (new class() SelectionAdapter {
            public void widgetSelected (SelectionEvent event) {
                setWidgetPageIncrement ();
            }
        });
    }

    /**
     * Gets the "Example" widget children.
     */
    Widget [] getExampleWidgets () {
        return [ cast(Widget) scale1];
    }

    /**
     * Returns a list of set/get API method names (without the set/get prefix)
     * that can be used to set/get values in the example control(s).
     */
    char[][] getMethodNames() {
        return ["Selection", "ToolTipText"];
    }

    /**
     * Gets the text for the tab folder item.
     */
    char[] getTabText () {
        return "Scale";
    }

    /**
     * Sets the state of the "Example" widgets.
     */
    void setExampleWidgetState () {
        super.setExampleWidgetState ();
        if (!instance.startup) {
            setWidgetIncrement ();
            setWidgetPageIncrement ();
        }
    }

    /**
     * Gets the default maximum of the "Example" widgets.
     */
    int getDefaultMaximum () {
        return scale1.getMaximum();
    }

    /**
     * Gets the default minimim of the "Example" widgets.
     */
    int getDefaultMinimum () {
        return scale1.getMinimum();
    }

    /**
     * Gets the default selection of the "Example" widgets.
     */
    int getDefaultSelection () {
        return scale1.getSelection();
    }

    /**
     * Gets the default increment of the "Example" widgets.
     */
    int getDefaultIncrement () {
        return scale1.getIncrement();
    }

    /**
     * Gets the default page increment of the "Example" widgets.
     */
    int getDefaultPageIncrement () {
        return scale1.getPageIncrement();
    }

    /**
     * Sets the increment of the "Example" widgets.
     */
    void setWidgetIncrement () {
        scale1.setIncrement (incrementSpinner.getSelection ());
    }

    /**
     * Sets the minimim of the "Example" widgets.
     */
    void setWidgetMaximum () {
        scale1.setMaximum (maximumSpinner.getSelection ());
    }

    /**
     * Sets the minimim of the "Example" widgets.
     */
    void setWidgetMinimum () {
        scale1.setMinimum (minimumSpinner.getSelection ());
    }

    /**
     * Sets the page increment of the "Example" widgets.
     */
    void setWidgetPageIncrement () {
        scale1.setPageIncrement (pageIncrementSpinner.getSelection ());
    }

    /**
     * Sets the selection of the "Example" widgets.
     */
    void setWidgetSelection () {
        scale1.setSelection (selectionSpinner.getSelection ());
    }
}