package org.simantics.views.swt.client.base;

import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Layout;
import org.simantics.browsing.ui.Column;
import org.simantics.browsing.ui.Column.Align;
import org.simantics.views.ViewUtils.ColumnBean;
import org.simantics.views.ViewUtils.GridDataBean;
import org.simantics.views.ViewUtils.GridLayoutBean;

public class SWTViewUtils {

	public static Layout toLayout(GridLayoutBean bean) {
		GridLayout result = GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(false).margins(0, 0).spacing(0, 0).create();
		result.numColumns = bean.numColumns;
		result.horizontalSpacing = bean.horizontalSpacing;
		result.verticalSpacing = bean.verticalSpacing;
		result.marginLeft = bean.marginLeft;
		result.marginRight = bean.marginRight;
		result.marginTop = bean.marginTop;
		result.marginBottom = bean.marginBottom;
		return result;
	}
	
	
	public static GridData toGridData(GridDataBean bean) {
		GridData result = new GridData(SWT.FILL, SWT.FILL, true, false);           
		result.horizontalSpan = bean.horizontalSpan;
		result.grabExcessHorizontalSpace = bean.grabExcessHorizontalSpace;
		result.grabExcessVerticalSpace = bean.grabExcessVerticalSpace;
		result.horizontalAlignment = bean.horizontalAlignment;
		result.verticalAlignment = bean.verticalAlignment;
		result.widthHint = bean.widthHint;
		result.heightHint = bean.heightHint;
		return result;
		
	}

	private static Align getAlign(String alignment) {
		if("LEFT".equals(alignment)) return Align.LEFT;
		else if("CENTER".equals(alignment)) return Align.CENTER;
		else if("RIGHT".equals(alignment)) return Align.RIGHT;
		else throw new IllegalArgumentException("Align should be either LEFT, CENTER or RIGHT (was " + alignment + ")");
	}
	
	public static Column toColumn(ColumnBean bean) {
		Align align = getAlign(bean.alignment);
		return new Column(bean.key, bean.label, align, bean.width, bean.tooltip, bean.grab, bean.weight);
	}
	
}