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

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

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/*******************************************************************************
 * Copyright (c) 2000, 2013 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.*;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

class CLabelTab extends AlignableTab {
    /* Example widgets and groups that contain them */
    CLabel label1, label2, label3;
    Group textLabelGroup;

    /* Style widgets added to the "Style" group */
    Button shadowInButton, shadowOutButton, shadowNoneButton;

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

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

        /* Create a group for the text labels */
        textLabelGroup = new Group(exampleGroup, SWT.NONE);
        GridLayout gridLayout = new GridLayout();
        textLabelGroup.setLayout(gridLayout);
        gridLayout.numColumns = 3;
        textLabelGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        textLabelGroup.setText(ControlExample.getResourceString("Custom_Labels"));
    }

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

        /* Compute the widget style */
        int style = getDefaultStyle();
        if (shadowInButton.getSelection())
            style |= SWT.SHADOW_IN;
        if (shadowNoneButton.getSelection())
            style |= SWT.SHADOW_NONE;
        if (shadowOutButton.getSelection())
            style |= SWT.SHADOW_OUT;
        if (leftButton.getSelection())
            style |= SWT.LEFT;
        if (centerButton.getSelection())
            style |= SWT.CENTER;
        if (rightButton.getSelection())
            style |= SWT.RIGHT;

        /* Create the example widgets */
        label1 = new CLabel(textLabelGroup, style);
        label1.setText(ControlExample.getResourceString("One"));
        label1.setImage(instance.images[ControlExample.ciClosedFolder]);
        label2 = new CLabel(textLabelGroup, style);
        label2.setImage(instance.images[ControlExample.ciTarget]);
        label3 = new CLabel(textLabelGroup, style);
        label3.setText(ControlExample.getResourceString("Example_string") + "\n"
                + ControlExample.getResourceString("One_Two_Three"));
    }

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

        /* Create the extra widgets */
        shadowNoneButton = new Button(styleGroup, SWT.RADIO);
        shadowNoneButton.setText("SWT.SHADOW_NONE");
        shadowInButton = new Button(styleGroup, SWT.RADIO);
        shadowInButton.setText("SWT.SHADOW_IN");
        shadowOutButton = new Button(styleGroup, SWT.RADIO);
        shadowOutButton.setText("SWT.SHADOW_OUT");
    }

    /**
     * Gets the "Example" widget children.
     */
    @Override
    Widget[] getExampleWidgets() {
        return new Widget[] { label1, label2, label3 };
    }

    /**
     * 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[] { "BottomMargin", "LeftMargin", "RightMargin", "Text", "ToolTipText", "TopMargin" };
    }

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

    /**
     * Sets the alignment of the "Example" widgets.
     */
    @Override
    void setExampleWidgetAlignment() {
        int alignment = 0;
        if (leftButton.getSelection())
            alignment = SWT.LEFT;
        if (centerButton.getSelection())
            alignment = SWT.CENTER;
        if (rightButton.getSelection())
            alignment = SWT.RIGHT;
        label1.setAlignment(alignment);
        label2.setAlignment(alignment);
        label3.setAlignment(alignment);
    }

    /**
     * Sets the state of the "Example" widgets.
     */
    @Override
    void setExampleWidgetState() {
        super.setExampleWidgetState();
        leftButton.setSelection((label1.getStyle() & SWT.LEFT) != 0);
        centerButton.setSelection((label1.getStyle() & SWT.CENTER) != 0);
        rightButton.setSelection((label1.getStyle() & SWT.RIGHT) != 0);
        shadowInButton.setSelection((label1.getStyle() & SWT.SHADOW_IN) != 0);
        shadowOutButton.setSelection((label1.getStyle() & SWT.SHADOW_OUT) != 0);
        shadowNoneButton.setSelection((label1.getStyle() & (SWT.SHADOW_IN | SWT.SHADOW_OUT)) == 0);
    }
}