/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

	// Turn a color property value string into

	// a color. The value is expected to either

	// be a comma delimited RGB or a system color

function colorFromString(laf, colorStr) {

	if (colorStr == null || colorStr == "")

		return null;

	var result = null;

	var elements = colorStr.split(",");

	if (elements.length == 3) {

		var valid = true;

		for (var i in elements) {

			var num = parseInt(elements[i]);

			if (isNaN(num))

				valid = false;

		}

		if (valid)

			result = Colors.getColor(elements[0], elements[1], elements[2]);

	}

	else {

		result = laf.getColor(colorStr);

	}

	return result;

}

// Get the effective background color, assuming that everything is transparent

// until we get to a component with an attribute describing how its

// background will be drawn

function getBackgroundColor(instance, laf) {

	var color = null;

	while (instance != null) {

		var bgProperty = instance.component.attributes

			["container-background-color-property-name"];

		if (bgProperty != null) {

			color = colorFromString(laf, instance.properties[bgProperty]);

			if (color != null) {

				//println("used attribute for " + color);

				break;

			}

		}

		var bgColor = instance.component.attributes

			["container-background-color"];

		if (bgColor != null) {

			color = laf.getColor(bgColor);

			if (color != null) {

				//println("used property for " + color);

				break;

			}

		}

		instance = instance.parent;

	}

	if (color == null) {

		color = laf.getColor("EEikColorWindowBackground");

		//println("using background color " + color);

		if (color == null) {

			color = Colors.getColor(255, 255, 255);

		}

	}

	return color;

}

ImageGlobals = getPluginClass("com.nokia.sdt.symbian", "com.nokia.sdt.symbian.images.ImageGlobals")

//	Get an image as specified in a com.nokia.sdt.symbian.ImageProperty

//	@param instance the instance

//	@param imageProperty the property, i.e. instance.properties.image

function getImageFromProperty(instance, graphics, imageProperty) {

	var info = ImageGlobals.getImageInfo(instance, imageProperty);

	return info.getComposedImage(graphics.getDevice())

}

//	Draw an image as specified in a com.nokia.sdt.symbian.ImageProperty

//	into the given rectangle in the gc

//	@param instance the instance

//	@param imageProperty the property, i.e. instance.properties.image

//	@param graphics the GC

//	@param rect the rectangle to draw in

function drawImageFromProperty(instance, graphics, imageProperty, rect) {

	var info = ImageGlobals.getImageInfo(instance, imageProperty);

	var image = info.getComposedImage(graphics.getDevice())

	if (image) {

		var imgRect = image.getBounds()

		graphics.drawImage(image, 0, 0, imgRect.width, imgRect.height, 

			rect.x, rect.y, rect.width, rect.height);

	}

}