org.eclipse.swt.examples.controlexample.TabFolderTab.java Source code

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Here is the source code for org.eclipse.swt.examples.controlexample.TabFolderTab.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.examples.controlexample;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Widget;

class TabFolderTab extends Tab {
    /* Example widgets and groups that contain them */
    TabFolder tabFolder1;
    Group tabFolderGroup;

    /* Style widgets added to the "Style" group */
    Button topButton, bottomButton;

    static String[] TabItems1 = { ControlExample.getResourceString("TabItem1_0"),
            ControlExample.getResourceString("TabItem1_1"), ControlExample.getResourceString("TabItem1_2") };

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

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

        /* Create a group for the TabFolder */
        tabFolderGroup = new Group(exampleGroup, SWT.NONE);
        tabFolderGroup.setLayout(new GridLayout());
        tabFolderGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        tabFolderGroup.setText("TabFolder");
    }

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

        /* Compute the widget style */
        int style = getDefaultStyle();
        if (topButton.getSelection())
            style |= SWT.TOP;
        if (bottomButton.getSelection())
            style |= SWT.BOTTOM;
        if (borderButton.getSelection())
            style |= SWT.BORDER;

        /* Create the example widgets */
        tabFolder1 = new TabFolder(tabFolderGroup, style);
        for (int i = 0; i < TabItems1.length; i++) {
            TabItem item = new TabItem(tabFolder1, SWT.NONE);
            item.setText(TabItems1[i]);
            item.setToolTipText(ControlExample.getResourceString("Tooltip", TabItems1[i]));
            Text content = new Text(tabFolder1, SWT.WRAP | SWT.MULTI);
            content.setText(ControlExample.getResourceString("TabItem_content") + ": " + i);
            item.setControl(content);
        }
    }

    /**
     * Creates the "Style" group.
     */
    @Override
    void createStyleGroup() {
        super.createStyleGroup();

        /* Create the extra widgets */
        topButton = new Button(styleGroup, SWT.RADIO);
        topButton.setText("SWT.TOP");
        topButton.setSelection(true);
        bottomButton = new Button(styleGroup, SWT.RADIO);
        bottomButton.setText("SWT.BOTTOM");
        borderButton = new Button(styleGroup, SWT.CHECK);
        borderButton.setText("SWT.BORDER");
    }

    /**
     * Gets the "Example" widget children's items, if any.
     *
     * @return an array containing the example widget children's items
     */
    @Override
    Item[] getExampleWidgetItems() {
        return tabFolder1.getItems();
    }

    /**
     * Gets the "Example" widget children.
     */
    @Override
    Widget[] getExampleWidgets() {
        return new Widget[] { tabFolder1 };
    }

    /**
     * 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).
     */
    @Override
    String[] getMethodNames() {
        return new String[] { "Selection", "SelectionIndex", "ToolTipText" };
    }

    @Override
    String setMethodName(String methodRoot) {
        /* Override to handle special case of int getSelectionIndex()/setSelection(int) */
        return (methodRoot.equals("SelectionIndex")) ? "setSelection" : "set" + methodRoot;
    }

    @Override
    Object[] parameterForType(String typeName, String value, Widget widget) {
        if (value.isEmpty())
            return new Object[] { new TabItem[0] };
        if (typeName.equals("org.eclipse.swt.widgets.TabItem")) {
            TabItem item = findItem(value, ((TabFolder) widget).getItems());
            if (item != null)
                return new Object[] { item };
        }
        if (typeName.equals("[Lorg.eclipse.swt.widgets.TabItem;")) {
            String[] values = split(value, ',');
            TabItem[] items = new TabItem[values.length];
            for (int i = 0; i < values.length; i++) {
                items[i] = findItem(values[i], ((TabFolder) widget).getItems());
            }
            return new Object[] { items };
        }
        return super.parameterForType(typeName, value, widget);
    }

    TabItem findItem(String value, TabItem[] items) {
        for (TabItem item : items) {
            if (item.getText().equals(value))
                return item;
        }
        return null;
    }

    /**
     * Gets the short text for the tab folder item.
     */
    @Override
    String getShortTabText() {
        return "TF";
    }

    /**
     * Gets the text for the tab folder item.
     */
    @Override
    String getTabText() {
        return "TabFolder";
    }

    /**
     * Sets the state of the "Example" widgets.
     */
    @Override
    void setExampleWidgetState() {
        super.setExampleWidgetState();
        topButton.setSelection((tabFolder1.getStyle() & SWT.TOP) != 0);
        bottomButton.setSelection((tabFolder1.getStyle() & SWT.BOTTOM) != 0);
        borderButton.setSelection((tabFolder1.getStyle() & SWT.BORDER) != 0);
    }
}