/*

* Copyright (c) 2006 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: 

*

*/

DRAW_BOUNDING_RECTS = false;

include("renderLibrary.js")

include("implLibrary.js")

include("srcgenLibrary.js")

var FORM_ID = "com.nokia.sdt.series60.CAknForm";

function isForm(formInstance) {

	return formInstance.componentId == FORM_ID;

}

function isDoubleSpaced(formInstance) {

	return formInstance.properties.EEikFormUseDoubleSpacedFormat;

}

function isShowingBitmaps(formInstance) {

	return formInstance.properties.EEikFormShowBitmaps;

}

function getFormSingleDividerOffset(formInstance, laf) {

	return laf.getInteger("form.divider.offset.single", 20);

}

function getFormPromptDividerOffset(formInstance, laf) {

	if (isDoubleSpaced(formInstance)) {

		if (isShowingBitmaps(formInstance))

			return laf.getInteger("form.inset", 20);

		else

			return laf.getInteger("form.divider.offset.double", 6);

	}

	return getFormSingleDividerOffset(formInstance, laf);

}

function getFormLineGap(laf) {

	return laf.getInteger("form.padding", 5);

}

function getFormPadding(laf) {

	return laf.getInteger("form.padding", 5);

}

/**

 *	Get all the rectangles associated with an item in a form.

 *

 *	@param rect the item's rectangle (i.e. an entire row)

 * @returns an array with:

 *

 *	0) Rectangle prompt bounds, as a whole

 *	1) Rectangle content bounds, as a whole

 *	2) Rectangle prompt image bounds, or null

 *	3) Rectangle prompt label bounds

 *	4) int column where divider is drawn

 */

var FORM_PROMPT_RECT_INDEX = 0;

var FORM_CONTENT_RECT_INDEX = 1;

var FORM_PROMPT_IMAGE_RECT_INDEX = 2;

var FORM_PROMPT_LABEL_RECT_INDEX = 3;

var FORM_DIVIDER_OFFSET_INDEX = 4;

function getFormItemRectanglesInRect(instance, laf, rect) {

	var formInstance = instance.parent;

	var dividerOffset = getFormPromptDividerOffset(instance.parent, laf);

	var bmsize = laf.getDimension("form.image.size").x;

	var promptRect, contentRect, promptImageRect = null, promptLabelRect;

	// NOTE: S60 seems to NOT add padding for prompts, but we do it anyway

	if (isDoubleSpaced(formInstance)) {

		var promptExtent = getFontHeight(getFormPromptFont(laf));

		//		println("rect="+rect+", dividerOffset="+dividerOffset+", promptExtent="+promptExtent);

		promptRect = new Rectangle(rect.x + dividerOffset + getFormPadding(laf), rect.y + getFormPadding(laf), 

			rect.width - dividerOffset - getFormPadding(laf), promptExtent);

		promptLabelRect = new Rectangle(promptRect.x, promptRect.y,

			promptRect.width, promptRect.height);

		if (isShowingBitmaps(formInstance)) {

			// image is on left side of divider, flush right

			promptImageRect = new Rectangle(

				rect.x + dividerOffset - bmsize - getFormPadding(laf)/3, 

				rect.y,

				bmsize,

				bmsize);

		}

		var leftMargin = dividerOffset + getFormPadding(laf) * 2;

		contentRect = new Rectangle(rect.x + leftMargin, 

				rect.y + promptExtent + getFormLineGap(laf),

				rect.width - leftMargin, 

				rect.height - promptExtent);

	} else {

		promptRect = new Rectangle(rect.x, rect.y, 

						dividerOffset - getFormPadding(laf), rect.height);

		if (isShowingBitmaps(formInstance)) {

			// image is on left side of label, flush left

			promptImageRect = new Rectangle(

				promptRect.x, 

				promptRect.y + (promptRect.height - bmsize) / 2,

				bmsize,

				bmsize);

			promptLabelRect = new Rectangle(

				promptRect.x + bmsize + 2, promptRect.y, 

				promptRect.width - bmsize, promptRect.height);

		} else {

			promptLabelRect = new Rectangle(

				promptRect.x, promptRect.y, 

				promptRect.width, promptRect.height);

		}

		var leftMargin = dividerOffset + getFormPadding(laf);

		contentRect = new Rectangle(rect.x + leftMargin, rect.y, 

				rect.width - leftMargin, rect.height);

	}

	var rects = [ promptRect, contentRect, promptImageRect, promptLabelRect, dividerOffset ];

	//println( "rects = " + rects);

	return rects;

}

function getFormItemRectangles(instance, laf) {

	var rect = new Rectangle(0, 0, 

		instance.properties.size.width, instance.properties.size.height);

	return getFormItemRectanglesInRect(instance, laf, rect);

}

function getFormPromptFont(laf) {

	return laf.getFont("DenseFont");

}

function getFormPromptFlags(instance) {

	var flags = Font.OVERFLOW_ELLIPSIS;

	if (isDoubleSpaced(instance.parent) || isShowingBitmaps(instance.parent))

		flags |= Font.ALIGN_LEFT;

	else

		flags |= Font.ALIGN_RIGHT;

	return flags;

}

function isFirstField(instance) {

	var siblings = instance.parent.children;

	if (siblings != null)

		return instance == siblings[0];

	return false;

}

function drawFormPrompt(prototype, instance, laf, graphics, rects) {

	var formInstance = instance.parent;

	var properties = instance.properties;

	var prompt = properties.prompt;

	var font = getFormPromptFont(laf);

	graphics.setFont(font);

	var rect = rects[FORM_PROMPT_RECT_INDEX];	

	graphics.setBackground(laf.getColor("EEikColorWindowBackground"));

	graphics.fillRectangle(rect);

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

	// in single spaced only, draw line before prompt if separator before or after is specified

	// and this is not the first form field (2.x only)

	var version = getComponentVersions();

	if (!isDoubleSpaced(formInstance) && !isFirstField(instance) && properties.EEikDlgItemSeparatorBefore

		&& version.getMajor() < 3) {

		graphics.drawLine(rect.x, rect.y, rect.width + getFormPadding(laf) - 1, rect.y);

	}

	// draw bitmap on the left side of the divider

	if (isShowingBitmaps(formInstance)) {

		var imageRect = rects[FORM_PROMPT_IMAGE_RECT_INDEX];

		renderImage(prototype, instance, laf, graphics, 

			0, 0, "promptImage", false);

	}

	rect = rects[FORM_PROMPT_LABEL_RECT_INDEX];

	var height = getFontHeight(font);

	var textRect = new Rectangle(rect.x, rect.y + (rect.height - height)/2,

			rect.width, height);

	var promptText = chooseScalableText(prompt, font, textRect.width);

	graphics.drawFormattedString(promptText, textRect, getFormPromptFlags(instance), 0);	

}

function getFormContentBounds(instance, laf) {

	var rect = new Rectangle(0, 0, 

		instance.properties.size.width, instance.properties.size.height);

	if (isForm(instance.parent)) {

		return getFormItemRectanglesInRect(instance, laf, rect)[FORM_CONTENT_RECT_INDEX];

	}

	return rect;		

}