/*

* 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: 

*

*/

/*

 * Render test

 *

 * globals available are:

 *

 *		instance (WrappedInstance)

 *		parent (WrappedInstance)

 *		children (WrappedInstance[])

 *		

 * rendering globals:

 *		graphics (wrapped SWT GC)

 *		Colors (object from which getColor(r,g,b) is available)

 *		Fonts (object from which getFont("path") is available)

 *		Images (object from which newImage(device,w,h) is available)

 */

include("library.js")

function Visual() {

}

function detailedDraw(string, x, y) {

	var extent = graphics.stringExtent(string)

	var metrics = graphics.getFontMetrics()

	var orig = graphics.getForeground()

	var hy = y + metrics.getHeight() 

	var origbk = graphics.getBackground()

	graphics.setBackground(Colors.getColor(192,192,192))

	graphics.fillRectangle(x, hy-metrics.getAscent(), extent.x, metrics.getAscent()+metrics.getDescent()+metrics.getLeading())

	graphics.setBackground(origbk)

	java.lang.System.out.println("height="+metrics.getHeight()+

		" descent="+metrics.getDescent()+

		" ascent="+metrics.getAscent())

	graphics.setLineDash(new Array(1,1))

	// baseline (green)

	graphics.setForeground(Colors.getColor(0, 255, 0))

	graphics.drawLine(x, hy, x+extent.x, hy)

	// descent (cyan)

	graphics.setForeground(Colors.getColor(0, 255, 255))

	graphics.drawLine(x+1, hy+metrics.getDescent(), x+extent.x, hy+metrics.getDescent())

	// ascent (yellow)

	graphics.setForeground(Colors.getColor(255, 255, 0))

	graphics.drawLine(x, hy-metrics.getAscent(), x+extent.x, hy-metrics.getAscent())

	// height (red)

	graphics.setForeground(Colors.getColor(255, 0, 0))

	graphics.drawLine(x+1, y, x+extent.x, y)

	graphics.setLineDash(null)

	graphics.setForeground(orig)

	graphics.drawString(string, x, y)	

	return extent.y

}

Visual.prototype.getPattern = function(type) {

	if (this.image3 == null) {

		this.image3 = Images.newImage(graphics.getDevice(), 3, 3)

	}

	if (this.image4 == null) {

		this.image4 = Images.newImage(graphics.getDevice(), 4, 4)

	}

	type = Math.floor(type)

	var img;

	if (type != 8.0 && type != 3.0 && type != 5.0)

		img = this.image3

	else

		img = this.image4

	var gc = new GC(graphics.getDevice(), img)

	gc.setBackground(Colors.getColor(255, 255, 255))

	gc.fillRectangle(0, 0, 4, 4);

	gc.setBackground(Colors.getColor(255, 255,255))

	gc.setForeground(Colors.getColor(0, 0, 0))

	switch (type) {

	case 1: // solid

	default:

		gc.setBackground(Colors.getColor(0, 0, 0))

		gc.fillRectangle(0, 0, 5, 5); 

		break;

	case 3: // vertical hatch

		gc.drawLine(1, 0, 1, 3); 

		gc.drawLine(3, 0, 3, 3); 

		break;

	case 4: // forward diagonal hatch

		gc.drawLine(0, 2, 2, 0); 

		break;

	case 5: // horizontal hatch

		gc.drawLine(0, 1, 3, 1);

		gc.drawLine(0, 3, 3, 3);

		break;

	case 6: // rearward diagonal hatch

		gc.drawLine(0, 0, 2, 2);

		break;

	case 7: // square cross hatch

		gc.drawLine(1, 0, 1, 3);

		gc.drawLine(0, 1, 3, 1);

		break;

	case 8: // diamond cross hatch

		gc.drawLine(0, 0, 3, 3); 

		gc.drawLine(2, 0, 0, 2);

		break;

	}

	gc.dispose()

	return new Pattern(graphics.getDevice(), img)

}

Visual.prototype.draw = function(instance, laf, graphics) {

	var properties = instance.properties

	var width = properties["size"].width;

	var height = properties.size["height"]

	var base = "data/s60"

	//var base = "c:/downloads"

	var thickness;

	var r,p,x,y,size,border;

	switch (properties.appearance) {

	case 0:

	default:

		thickness = 1;

		graphics.setLineWidth(thickness)

		graphics.setForeground(getBlue())

		graphics.setBackground(Colors.getColor(255, 255, 255))

		graphics.fillGradientRectangle(0, 0, properties.size.width, properties.size.height, true)

		break;

	case 1:

		thickness = 2;

		graphics.setLineWidth(thickness)

		r = new Rectangle(width/2, height/2, width/2-4, height/2-4)

		graphics.setForeground(Colors.getColor(48, 64, 64))

		graphics.setLineWidth(2)

		graphics.drawRectangle(r)			

		break;

	case 2:

		r = new Rectangle(0, 0, width, height)

		graphics.setForeground(Colors.getColor(0, 0, 64))

		graphics.setLineWidth(2)

		graphics.drawRectangle(r)			

		break;

	case 3:

		// ensure Path is available

		p = new Path(graphics.getDevice())

		p.moveTo(width/2, 0)

		p.lineTo(0, height)

		p.lineTo(width, height/2)

		graphics.setClipping(p);

		graphics.setForeground(Colors.getColor(128, 128, 0))

		graphics.setBackground(Colors.getColor(128, 128, 0))

		graphics.setAlpha(64)	// note: no effect yet

		graphics.setLineWidth(1)

		size = properties.value

		if (size <= 0)

			size = 1

		for (y=0; y<height; y+=size)

			for (x=size*(((y/size)&1)^1); x<width; x+=size*2)

				graphics.fillRectangle(x, y, size, size)

		graphics.setForeground(Colors.getColor(0, 128, 128))

		graphics.setBackground(Colors.getColor(0, 128, 128))

		graphics.setAlpha(128)	// note: no effect yet

		for (y=0; y<height; y+=size)

			for (x=size*((y/size)&1); x<width; x+=size*2)

				graphics.fillRectangle(x, y, size, size)	

		break;

	case 4:

		r = new Rectangle(0, 0, width, height)

		graphics.setLineWidth(1)

		graphics.drawRectangle(r)

		r = new Rectangle(4, height/2, width-8, height/2-4)

		graphics.drawRectangle(r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alp17.14.ttf", 14))

		graphics.setForeground(Colors.getColor(0, 0, 0))

		//detailedDraw("Hello", r.x, r.y)

		graphics.drawFormattedString("\"Hello Sedona!\" says a wrapped box.\nFoo,\nbar.",

			r,

			Font.WRAPPING_ENABLED+Font.DRAW_TRANSPARENT+Font.ALIGN_CENTER);	

		break;

	case 5:

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alb13.10.ttf", 10))

		h = graphics.getFontMetrics().getHeight()

		r = new Rectangle(4, height/4, width-8, height/4*3-8)

		graphics.drawFormattedString("First", r, 0)

		r.y += h

		graphics.drawFormattedString("Second", r, Font.OPTIONS_STRIKETHROUGH)

		r.y += h

		graphics.drawFormattedString("Third", r, Font.OPTIONS_UNDERLINE)

		break;

	case 6:

		r = 32

		str="!xpEdant \u011E \u52a3\u554f\u6C55"

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alb19.15.ttf", 15))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alp17.14.ttf", 14))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alpi17.14.ttf", 14))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Albi17b.14.ttf", 14))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alb12.9.ttf", 9))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alb17.14.ttf", 14))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Aco21.16.ttf", 16))

		r += detailedDraw("|=+-\u00d7\u00f7", 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/JapanPlain12.12.ttf", 12))

		r += detailedDraw(str, 4, r)

		graphics.setFont(Fonts.getGlobalFont(base+"/fonts/JapanPlain16.17.ttf", 17))

		r += detailedDraw(str, 4, r)

		//graphics.setFont(Fonts.getGlobalFont("c:/winnt/fonts/Arial.ttf", 12))

		//r += detailedDraw(str, 4, r)

		//graphics.setFont(Fonts.getGlobalFont("c:/winnt/fonts/ArialUni.ttf", 12))

		//r += detailedDraw(str, 4, r)

		break;

	case 7:

		graphics.setBackground(Colors.getColor(64,160,160))

		graphics.fillRectangle(0, 0, width, height)

		border = width/8

		// ensure Pattern works

		p = new Path(graphics.getDevice())

		p.moveTo(border, height/2)

		p.quadTo(border, border, width/2-border, border*2)

		p.quadTo(width-border, border, width-border, height/2-border)

		p.quadTo(width-border, height-border, width/2-border, height-border)

		p.quadTo(border, height-border, border, height/2-border)

		graphics.setClipping(p);

		pattern = this.getPattern(properties.value)

		graphics.setBackgroundPattern(pattern)

		graphics.setForegroundPattern(pattern)

//		graphics.setBackground(Colors.getColor(255, 128, 64))

		graphics.setForeground(Colors.getColor(0, 0, 0))

		graphics.fillRectangle(0, 0, width, height)

		break;

	}

	// draw a label on top identifying this	

	full = new Rectangle(0, 0, width, height)

	graphics.setClipping(full)

	graphics.setForeground(Colors.getColor(0, 0, 128))

	graphics.setBackground(Colors.getColor(128, 128, 128))

	//java.lang.System.out.println("1")

	graphics.setFont(Fonts.getGlobalFont(base+"/fonts/Alpi12.9.ttf", 9))

	s = '(name='+properties.name+'; appearance='+properties.appearance+')';

	r = graphics.formattedStringExtent(s, full, Font.WRAPPING_ENABLED)

	//java.lang.System.out.println("r="+r)

	graphics.drawFormattedString(s, r,

		Font.WRAPPING_ENABLED+Font.DRAW_OPAQUE);

}

Visual.prototype.getPreferredSize = function(wHint, hHint) {

	return null; // needs implementation	

}