package org.eclipse.e4.ui.tests.css.swt;

import org.eclipse.e4.ui.css.core.engine.CSSEngine;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

public class LabelTest extends CSSTestCase {

	static final RGB RED = new RGB(255, 0, 0);
	static final RGB GREEN = new RGB(0, 255, 0);
	static final RGB BLUE = new RGB(0, 0, 255);
		
	protected Label createTestLabel(String styleSheet) {
		Display display = Display.getDefault();
		CSSEngine engine = createEngine(styleSheet, display);
		
		// Create widgets
		Shell shell = new Shell(display, SWT.SHELL_TRIM);
		FillLayout layout = new FillLayout();
		shell.setLayout(layout);

		Composite panel = new Composite(shell, SWT.NONE);
		panel.setLayout(new FillLayout());

		Label labelToTest = new Label(panel, SWT.NONE);
		labelToTest.setText("Some label text");

		// Apply styles
		engine.applyStyles(shell, true);

		shell.pack();
		shell.open();
		return labelToTest;
	}
	
	
	public void testColor() throws Exception {
		Label labelToTest = createTestLabel("Label { background-color: #FF0000; color: #0000FF }");
		assertEquals(RED, labelToTest.getBackground().getRGB());
		assertEquals(BLUE, labelToTest.getForeground().getRGB());
		labelToTest.getShell().close();
	}

	public void testFontRegular() throws Exception {
		Label labelToTest = createTestLabel("Label { font: Verdana 16px }");
		assertEquals(1, labelToTest.getFont().getFontData().length);
		FontData fontData = labelToTest.getFont().getFontData()[0];
		assertEquals("Verdana", fontData.getName());
		assertEquals(16, fontData.getHeight());
		assertEquals(SWT.NORMAL, fontData.getStyle());		
		labelToTest.getShell().close();
	}

	public void testFontBold() throws Exception {
		Label labelToTest = createTestLabel("Label { font: Arial 12px; font-weight: bold }");
		assertEquals(1, labelToTest.getFont().getFontData().length);
		FontData fontData = labelToTest.getFont().getFontData()[0];
		assertEquals("Arial", fontData.getName());
		assertEquals(12, fontData.getHeight());
		assertEquals(SWT.BOLD, fontData.getStyle());		
		labelToTest.getShell().close();
	}

	public void testFontItalic() throws Exception {
		Label labelToTest = createTestLabel("Label { font-style: italic }");
		assertEquals(1, labelToTest.getFont().getFontData().length);
		FontData fontData = labelToTest.getFont().getFontData()[0];
		assertEquals(SWT.ITALIC, fontData.getStyle());		
		labelToTest.getShell().close();
	}
}