org.wings.plaf.css.ScrollPaneLayoutCG Maven / Gradle / Ivy

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/*
 * Copyright (c) 2005 Your Corporation. All Rights Reserved.
 */
package org.wings.plaf.css;

import org.wings.*;
import org.wings.io.Device;

import java.io.IOException;
import java.util.Map;

public class ScrollPaneLayoutCG extends AbstractLayoutCG {

    private static final long serialVersionUID = 1L;

    @Override
    public void write(Device d, SLayoutManager l) throws IOException {
        SScrollPaneLayout layout = (SScrollPaneLayout) l;
        SScrollPane scrollpane = (SScrollPane) layout.getContainer();

        if (scrollpane.getMode() != SScrollPane.MODE_COMPLETE) {
            writePaging(d, layout);
        } else {
            writeNonePaging(d, layout);
        }
    }

    protected static void writeNonePaging(Device d, SScrollPaneLayout layout) throws IOException {
        openLayouterBody(d, layout);
        if( Utils.isMSIEVersion( 8 ) )
        	d.print("");
        else
        	d.print("");

        Map components = layout.getComponents();
        SComponent center = (SComponent) components.get(SScrollPaneLayout.VIEWPORT);

        writeComponent(d, center);

        d.print("");
        closeLayouterBody(d, layout);
    }

    protected static void writePaging(Device d, SScrollPaneLayout layout) throws IOException {
        SContainer container = layout.getContainer();
        Map components = layout.getComponents();
        SComponent north = (SComponent) components.get(SScrollPaneLayout.NORTH);
        SComponent east = (SComponent) components.get(SScrollPaneLayout.EAST);
        SComponent center = (SComponent) components.get(SScrollPaneLayout.VIEWPORT);
        SComponent west = (SComponent) components.get(SScrollPaneLayout.WEST);
        SComponent south = (SComponent) components.get(SScrollPaneLayout.SOUTH);

        SDimension preferredSize = container.getPreferredSize();
        String height = preferredSize != null ? preferredSize.getHeight() : null;
        boolean clientLayout = Utils.isMSIE(container) && height != null && !"auto".equals(height);

        openLayouterBody(d, layout);

        if (north != null) {
            if (clientLayout)
                d.print("");
            else
                d.print("");

            if (west != null) {
                d.print("");
            }

            d.print("");
            writeComponent(d, north);
            d.print("");

            if (east != null) {
                d.print("");
            }
            d.print("\n");
        }

        if (clientLayout)
            d.print("");
        else
            d.print("");

        if (west != null) {
            d.print("");
            writeComponent(d, west);
            d.print("");
        }
        if (center != null) {
            d.print("");
            writeComponent(d, center);
            d.print("");
        }
        if (east != null) {
            d.print("");
            writeComponent(d, east);
            d.print("");
        }
        d.print("\n");

        if (south != null) {
            if (clientLayout)
                d.print("");
            else
                d.print("");

            if (west != null) {
                d.print("");
            }

            d.print("");
            writeComponent(d, south);
            d.print("");

            if (east != null) {
                d.print("");
            }
            d.print("\n");
        }

        closeLayouterBody(d, layout);
    }

    protected static void writeComponent(Device d, SComponent c)
            throws IOException {
        c.write(d);
    }

    @Override
    protected int getLayoutHGap(SLayoutManager layout) {
        return -1;
    }

    @Override
    protected int getLayoutVGap(SLayoutManager layout) {
        return -1;
    }

    @Override
    protected int getLayoutBorder(SLayoutManager layout) {
        return -1;
    }

    @Override
    protected int layoutOversize(SLayoutManager layout) {
        return 0;
    }

    @Override
    public int getDefaultLayoutCellHAlignment() {
        return SConstants.NO_ALIGN;
    }

    @Override
    public int getDefaultLayoutCellVAlignment() {
        return SConstants.NO_ALIGN;
    }

}