swtscrollablehelper.java

A translator that converts Qt Designer UI files into SWT java classes. Use the power of Qt Designer

/* This file is part of ui2swt.
 *
 * $Revision: 1.5 $
 * $Date: 2007/01/20 10:19:31 $
 * $Name:  $
 *
 * Copyright (C) 2006-2007 James Forbes, All Rights Reserved.
 *
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from the
 * use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 *  1. The origin of this software must not be misrepresented; you must not
 *     claim that you wrote the original software. If you use this software in
 *     a product, an acknowledgment in the product documentation would be
 *     appreciated but is not required.
 *
 *  2. Altered source versions must be plainly marked as such, and must not be
 *     misrepresented as being the original software.
 *
 *  3. This notice may not be removed or altered from any source distribution.
 */

package ui2swt.swt;

import ui2swt.UIDefinition;
import ui2swt.Widget;


public class SWTScrollableHelper extends SWTHelper
{
    public static final int SWT_SCROLL_UNKNOWN  = 0;
    public static final int SWT_SCROLL_AUTO     = 1;
    public static final int SWT_SCROLL_ON       = 2;
    public static final int SWT_SCROLL_OFF      = 3;

    
    //
    //
    //

    private static final String UI_H_SCROLL_BAR_MODE_2  = "hScrollBarMode.enum";
    private static final String UI_H_SCROLL_BAR_MODE_3  = "hScrollBarMode.enum";
    private static final String UI_H_SCROLL_BAR_MODE_4  = "horizontalScrollBarPolicy.enum";
    
    private static final String UI_V_SCROLL_BAR_MODE_2  = "vScrollBarMode.enum";
    private static final String UI_V_SCROLL_BAR_MODE_3  = "vScrollBarMode.enum";
    private static final String UI_V_SCROLL_BAR_MODE_4  = "verticalScrollBarPolicy.enum";

    
    private static final String UI_SCROLL_STRING_VALUE_2[] =
        { "Auto", "AlwaysOn", "AlwaysOff" };

    private static final String UI_SCROLL_STRING_VALUE_3[] =
        { "Auto", "AlwaysOn", "AlwaysOff" };

    private static final String UI_SCROLL_STRING_VALUE_4[] =
        { "Qt::ScrollBarAsNeeded", "Qt::ScrollBarAlwaysOn", "Qt::ScrollBarAlwaysOff" };

    
    private static final int UI_SCROLL_INT_VALUE[] =
        { SWT_SCROLL_AUTO, SWT_SCROLL_ON, SWT_SCROLL_OFF };

    
    //
    //
    //

    public static int getScrollHorizontal(
        UIDefinition    iUIDefinition,
        Widget          iWidget )
    {
        int result = SWT_SCROLL_AUTO;
        
        switch (iUIDefinition.getVersion())
        {
            case UIDefinition.VERSION_2:
                result = 
                    iWidget.getEnumProperty(
                        UI_H_SCROLL_BAR_MODE_2,
                        UI_SCROLL_STRING_VALUE_2,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
                
            case UIDefinition.VERSION_3:
                result = 
                    iWidget.getEnumProperty(
                        UI_H_SCROLL_BAR_MODE_3,
                        UI_SCROLL_STRING_VALUE_3,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
                
            case UIDefinition.VERSION_4:
                result = 
                    iWidget.getEnumProperty(
                        UI_H_SCROLL_BAR_MODE_4,
                        UI_SCROLL_STRING_VALUE_4,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
        }
        
        return result;
    }
    

    public static int getScrollVertical(
        UIDefinition    iUIDefinition,
        Widget          iWidget )
    {
        int result = SWT_SCROLL_AUTO;
        
        switch (iUIDefinition.getVersion())
        {
            case UIDefinition.VERSION_2:
                result = 
                    iWidget.getEnumProperty(
                        UI_V_SCROLL_BAR_MODE_2,
                        UI_SCROLL_STRING_VALUE_2,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
                
            case UIDefinition.VERSION_3:
                result = 
                    iWidget.getEnumProperty(
                        UI_V_SCROLL_BAR_MODE_3,
                        UI_SCROLL_STRING_VALUE_3,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
                
            case UIDefinition.VERSION_4:
                result = 
                    iWidget.getEnumProperty(
                        UI_V_SCROLL_BAR_MODE_4,
                        UI_SCROLL_STRING_VALUE_4,
                        UI_SCROLL_INT_VALUE,
                        SWT_SCROLL_AUTO);
                break;
        }
        
        return result;
    }
    
    
    //
    //
    //

    public static void appendScrollableStyles(
        UIDefinition    iUIDefinition,
        Widget          iWidget,
        StringBuffer    iStyle )
    {
        // horizontal scroll?
        switch (SWTScrollableHelper.getScrollHorizontal(iUIDefinition, iWidget))
        {
            case SWTScrollableHelper.SWT_SCROLL_AUTO:
            case SWTScrollableHelper.SWT_SCROLL_ON:
                appendStyleValue(iStyle, "SWT.H_SCROLL");
                break;

            case SWTScrollableHelper.SWT_SCROLL_UNKNOWN:
            case SWTScrollableHelper.SWT_SCROLL_OFF:
            default:
                break;
        }
        
        // vertical scroll?
        switch (SWTScrollableHelper.getScrollVertical(iUIDefinition, iWidget))
        {
            case SWTScrollableHelper.SWT_SCROLL_AUTO:
            case SWTScrollableHelper.SWT_SCROLL_ON:
                appendStyleValue(iStyle, "SWT.V_SCROLL");
                break;

            case SWTScrollableHelper.SWT_SCROLL_UNKNOWN:
            case SWTScrollableHelper.SWT_SCROLL_OFF:
            default:
                break;
        }
    }
}