/*

* Copyright (c) 2007 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: 

*

*/

include("../containers/containerLibrary.js")

include("../renderLibrary.js")

include("StylusPopupItem.js")

function CAknStylusPopUpMenu() {

	this.lafInfo = null;

	// the bounds of the dialog, rel. to instance

	this.dialogBounds = null;	

	// the bounds of the prompt part, rel. to dialogBounds

	this.promptBounds = null;

	// the bounds of the list box part, rel. to dialogBounds

	this.listBounds = null;

}

///////////////////////////////////

// IQueryContainment

///////////////////////////////////

function canContainComponent(instance, component) {

	if (isStylusPopupItemComponent(component))

		return null;

	return buildSimpleContainmentErrorStatus(

			lookupString("stylusPopupItemContainmentErr"), new Array( component.friendlyName ));			

}

CAknStylusPopUpMenu.prototype.canContainComponent = function(instance, otherComponent) {

	if (instance.children.length >= 4){

		return buildSimpleContainmentErrorStatus(

			lookupString("maxStylusPopupItemContainmentErr"), new Array( otherComponent.friendlyName ));			

	}

	return canContainComponent(instance, otherComponent);

}

CAknStylusPopUpMenu.prototype.canContainChild = function(instance, child) {

	return canContainComponent(instance, child.component);

}

CAknStylusPopUpMenu.prototype.canRemoveChild = function(instance) {

	return true;

}

CAknStylusPopUpMenu.prototype.isValidComponentInPalette = function(instance, otherComponent) {

	return canContainComponent(instance, otherComponent) == null;

}

function isStylusPopupItemComponent(component) {

	return component.id == "com.nokia.sdt.series60.StylusPopupItem";

}

///////////////////////////////////

// IVisualAppearance

///////////////////////////////////

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

	var width = instance.properties.size.width - 3;

	var height = instance.properties.size.height - 3;

	var x = 0;

	var y = 0;

	// fill 

	graphics.setBackground(getBackgroundColor(instance, laf))

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

	// edge

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

	graphics.drawRectangle(new Rectangle(0, 0, width, height))

	// shadows

	graphics.setForeground(laf.getColor("control.shadow.inner"))

	graphics.drawLine(x + 1, y + height + 1, x + width + 1, y + height + 1)

	graphics.drawLine(x + width + 1, y + 1, x + width + 1, y + height + 1)

	graphics.setForeground(laf.getColor("control.shadow.outer"))

	graphics.drawLine(x + 2, y + height + 2, x + width + 2, y + height + 2)

	graphics.drawLine(x + width + 2, y + 2, x + width + 2, y + height + 2)

	graphics.setForeground(laf.getColor("EEikColorDialogText"));

	if (instance.children.length == 0) {

			drawTextItem(" No data ", new Point(0, 0), new Point(width + 5, height + 2), laf, graphics);

	}

}

CAknStylusPopUpMenu.prototype.getPreferredSize = function(instance, laf, wHint, hHint) {

	return null;

}

///////////////////////////////////

// IDirectLableEdit

///////////////////////////////////

///////////////////////////////////

// ILayout

///////////////////////////////////

CAknStylusPopUpMenu.prototype.layout = function(instance, laf) {

	//Get the rectangle for the screen, we'll put the popup menu in the middle

	var d = laf.getDimension("screen.size");

	var textPadding = 10;

	var numChildren = instance.children.length;

	if (numChildren == 0){

		numChildren = 1; // Leave space for text to indicate no menu items present

	}

	var font = laf.getFont("menuitem.font");

	var extent = font.stringExtent("  No data  ");  // get default widest text length

	var menuWidth = extent.x + textPadding;

	var fontHeight = font.getHeight() + 8;

	for (var i in instance.children) {

	    // figure out the max width of the text item...

		var child = instance.children[i];

		var childProperties = child.properties;

		if (menuWidth < font.stringExtent(child.properties.textItem).x) {

		    if (font.stringExtent(child.properties.textItem).x > d.x / 2) {

		       // NOTE: I'm not sure about the termination. The popup menu doesn't seem to work

		       // on the emulator on all the resolutions so far, so proper elipsis length is unknown.

		       // However, currently it seems to be 1/2 of screen size.

		    	menuWidth = d.x /2 + 10; // menu width can only be 1/2 of screen width

		    } else {

				menuWidth = font.stringExtent(child.properties.textItem).x + textPadding;

			}

		}	

	}

	var menuLayoutHeight = fontHeight * numChildren + numChildren * 2;

	var contentRect = laf.getRectangle("content.pane.bounds");

	var menuRect = new Rectangle(contentRect.x, contentRect.y, contentRect.width, contentRect.height);

	menuRect.width = menuWidth + 10;

	menuRect.height = menuLayoutHeight + 4;

	menuRect.x = d.x / 2 - (menuRect.width / 2) + 2;

	menuRect.y = (d.y / 2) - (menuLayoutHeight / 2) + 2;

	setBounds(instance, menuRect); // Sets the bounds of the menu itself

	var properties = instance.properties;

	defaultX=6;

	defaultY=2;

	// set the layout bounds for each menu item child 

	for (var i in instance.children) {

		var child = instance.children[i];

		var childProperties = child.properties;

		// Set the offsets so that the text item shows with it's bounds inside the menu rectangle borders

		setBounds(child, new Rectangle(defaultX, defaultY, menuWidth-4, fontHeight-2));

		defaultY = defaultY + fontHeight + 2;

	}

}