root/branches/0.2/controlexample/buttontab.d

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
module controlexample.buttontab;

private {
import swt.all;
import controlexample.alignabletab;
import controlexample.controlexample;
}
/**
 * <code>ButtonTab</code> is the class that
 * demonstrates SWT buttons.
 */
class ButtonTab : AlignableTab {

    /* Example widgets and groups that contain them */
    Button button1, button2, button3, button4, button5, button6;
    Group textButtonGroup, imageButtonGroup;

    /* Alignment widgets added to the "Control" group */
    Button upButton, downButton;

    /* Style widgets added to the "Style" group */
    Button pushButton, checkButton, radioButton, toggleButton, arrowButton, flatButton;
    
    /**
     * Creates the Tab within a given instance_ren of ControlExample.
     */
    this(ControlExample instance_ren) {
        super(instance_ren);
    }
    
    /**
     * Creates the "Control" group. 
     */
    void createControlGroup () {
        super.createControlGroup ();
    
        /* Create the controls */
        upButton = new Button (alignmentGroup, SWT.RADIO);
        upButton.setText (ControlExample.getResourceString("Up"));
        downButton = new Button (alignmentGroup, SWT.RADIO);
        downButton.setText (ControlExample.getResourceString("Down"));
    
        /* Add the listeners */
        void widgetSelected(SelectionEvent event) {
            ButtonTab c = cast(ButtonTab)event.cData;
            if (!(cast(Button) event.widget).getSelection()) return;
            c.setExampleWidgetAlignment ();
        };
        
        upButton.handleSelection(this, &widgetSelected);
        downButton.handleSelection(this, &widgetSelected);
    }
    
    /**
     * Creates the "Example" group.
     */
    void createExampleGroup () {
        super.createExampleGroup ();
        
        /* Create a group for text buttons */
        textButtonGroup = new Group(exampleGroup, SWT.NONE);
        GridLayout gridLayout = new GridLayout ();
        textButtonGroup.setLayout(gridLayout);
        gridLayout.numColumns = 3;
        textButtonGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
        textButtonGroup.setText (ControlExample.getResourceString("Text_Buttons"));
    
        /* Create a group for the image buttons */
        imageButtonGroup = new Group(exampleGroup, SWT.NONE);
        gridLayout = new GridLayout();
        imageButtonGroup.setLayout(gridLayout);
        gridLayout.numColumns = 3;
        imageButtonGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
        imageButtonGroup.setText (ControlExample.getResourceString("Image_Buttons"));
    }
    
    /**
     * Creates the "Example" widgets.
     */
    void createExampleWidgets () {
    
        /* Compute the widget style */
        int style = getDefaultStyle();
        if (pushButton.getSelection()) style |= SWT.PUSH;
        if (checkButton.getSelection()) style |= SWT.CHECK;
        if (radioButton.getSelection()) style |= SWT.RADIO;
        if (toggleButton.getSelection()) style |= SWT.TOGGLE;
        if (flatButton.getSelection()) style |= SWT.FLAT;
        if (borderButton.getSelection()) style |= SWT.BORDER;
        if (leftButton.getSelection()) style |= SWT.LEFT;
        if (rightButton.getSelection()) style |= SWT.RIGHT;
        if (arrowButton.getSelection()) {
            style |= SWT.ARROW; 
            if (upButton.getSelection()) style |= SWT.UP;
            if (downButton.getSelection()) style |= SWT.DOWN;
        } else {
            if (centerButton.getSelection()) style |= SWT.CENTER;           
        }
    
        /* Create the example widgets */
        button1 = new Button(textButtonGroup, style);
        button1.setText(ControlExample.getResourceString("One"));
        button2 = new Button(textButtonGroup, style);
        button2.setText(ControlExample.getResourceString("Two"));
        button3 = new Button(textButtonGroup, style);
        button3.setText(ControlExample.getResourceString("Three"));
        button4 = new Button(imageButtonGroup, style);
        button4.setImage(instance_ren.images[ControlExample.ciClosedFolder]);
        button5 = new Button(imageButtonGroup, style);
        button5.setImage(instance_ren.images[ControlExample.ciOpenFolder]);
        button6 = new Button(imageButtonGroup, style);
        button6.setImage(instance_ren.images[ControlExample.ciTarget]);
    }
    
    /**
     * Creates the "Style" group.
     */
    void createStyleGroup() {
        super.createStyleGroup ();
    
        /* Create the extra widgets */
        pushButton = new Button (styleGroup, SWT.RADIO);
        pushButton.setText("SWT.PUSH");
        checkButton = new Button (styleGroup, SWT.RADIO);
        checkButton.setText ("SWT.CHECK");
        radioButton = new Button (styleGroup, SWT.RADIO);
        radioButton.setText ("SWT.RADIO");
        toggleButton = new Button (styleGroup, SWT.RADIO);
        toggleButton.setText ("SWT.TOGGLE");
        arrowButton = new Button (styleGroup, SWT.RADIO);
        arrowButton.setText ("SWT.ARROW");
        flatButton = new Button (styleGroup, SWT.CHECK);
        flatButton.setText ("SWT.FLAT");
        borderButton = new Button (styleGroup, SWT.CHECK);
        borderButton.setText ("SWT.BORDER");
    }
    
    /**
     * Gets the "Example" widget children.
     */
    Control [] getExampleWidgets () {
        Control[] controls;
        controls ~= button1;
        controls ~= button2;
        controls ~= button3;
        controls ~= button4;
        controls ~= button5;
        controls ~= button6;
        return controls;    
    }
    
    /**
     * Gets the text for the tab folder item.
     */
    String getTabText () {
        return "Button";
    }
    
    /**
     * Sets the alignment of the "Example" widgets.
     */
    void setExampleWidgetAlignment () {
        int alignment = 0;
        if (leftButton.getSelection ()) alignment = SWT.LEFT;
        if (centerButton.getSelection ()) alignment = SWT.CENTER;
        if (rightButton.getSelection ()) alignment = SWT.RIGHT;
        if (upButton.getSelection ()) alignment = SWT.UP;
        if (downButton.getSelection ()) alignment = SWT.DOWN;
        button1.setAlignment (alignment);
        button2.setAlignment (alignment);
        button3.setAlignment (alignment);
        button4.setAlignment (alignment);
        button5.setAlignment (alignment);
        button6.setAlignment (alignment);
    }
    
    /**
     * Sets the state of the "Example" widgets.
     */
    void setExampleWidgetState () {
        super.setExampleWidgetState ();
        if (arrowButton.getSelection ()) {
            upButton.setEnabled (true);
            centerButton.setEnabled (false);
            downButton.setEnabled (true);
        } else {
            upButton.setEnabled (false);
            centerButton.setEnabled (true);
            downButton.setEnabled (false);
        }
        upButton.setSelection ((button1.getStyle () & SWT.UP) != 0);
        downButton.setSelection ((button1.getStyle () & SWT.DOWN) != 0);
        pushButton.setSelection ((button1.getStyle () & SWT.PUSH) != 0);
        checkButton.setSelection ((button1.getStyle () & SWT.CHECK) != 0);
        radioButton.setSelection ((button1.getStyle () & SWT.RADIO) != 0);
        toggleButton.setSelection ((button1.getStyle () & SWT.TOGGLE) != 0);
        arrowButton.setSelection ((button1.getStyle () & SWT.ARROW) != 0);
        flatButton.setSelection ((button1.getStyle () & SWT.FLAT) != 0);
        borderButton.setSelection ((button1.getStyle () & SWT.BORDER) != 0);
    }
}