/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hssf.usermodel;

import org.apache.poi.hssf.record.CFRuleRecord;
import org.apache.poi.hssf.record.cf.FontFormatting;
/**
 * High level representation for Font Formatting component
 * of Conditional Formatting settings
 * 
 * @author Dmitriy Kumshayev
 *
 */
public final class HSSFFontFormatting
{
	/** Escapement type - None */
	public final static short SS_NONE  = FontFormatting.SS_NONE;
	/** Escapement type - Superscript */
	public final static short SS_SUPER = FontFormatting.SS_SUPER;
	/** Escapement type - Subscript */
	public final static short SS_SUB   = FontFormatting.SS_SUB;

	/** Underline type - None */ 
	public final static byte U_NONE              = FontFormatting.U_NONE;
	/** Underline type - Single */ 
	public final static byte U_SINGLE            = FontFormatting.U_SINGLE;
	/** Underline type - Double */ 
	public final static byte U_DOUBLE            = FontFormatting.U_DOUBLE;
	/**  Underline type - Single Accounting */ 
	public final static byte U_SINGLE_ACCOUNTING = FontFormatting.U_SINGLE_ACCOUNTING;
	/** Underline type - Double Accounting */ 
	public final static byte U_DOUBLE_ACCOUNTING = FontFormatting.U_DOUBLE_ACCOUNTING;

	private final FontFormatting fontFormatting;
	
	protected HSSFFontFormatting(CFRuleRecord cfRuleRecord)
	{
		this.fontFormatting = cfRuleRecord.getFontFormatting();
	}
	
	protected FontFormatting getFontFormattingBlock()
	{
		return fontFormatting;
	}

	/**
	 * get the type of super or subscript for the font
	 *
	 * @return super or subscript option
	 * @see #SS_NONE
	 * @see #SS_SUPER
	 * @see #SS_SUB
	 */
	public short getEscapementType()
	{
		return fontFormatting.getEscapementType();
	}

	/**
	 * @return font color index
	 */
	public short getFontColorIndex()
	{
		return fontFormatting.getFontColorIndex();
	}

	/**
	 * gets the height of the font in 1/20th point units
	 *
	 * @return fontheight (in points/20); or -1 if not modified
	 */
	public int getFontHeight()
	{
		return fontFormatting.getFontHeight();
	}

	/**
	 * get the font weight for this font (100-1000dec or 0x64-0x3e8).  Default is
	 * 0x190 for normal and 0x2bc for bold
	 *
	 * @return bw - a number between 100-1000 for the fonts "boldness"
	 */

	public short getFontWeight()
	{
		return fontFormatting.getFontWeight();
	}

	/**
	 * @return
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#getRawRecord()
	 */
	protected byte[] getRawRecord()
	{
		return fontFormatting.getRawRecord();
	}

	/**
	 * get the type of underlining for the font
	 *
	 * @return font underlining type
	 *
	 * @see #U_NONE
	 * @see #U_SINGLE
	 * @see #U_DOUBLE
	 * @see #U_SINGLE_ACCOUNTING
	 * @see #U_DOUBLE_ACCOUNTING
	 */
	public short getUnderlineType()
	{
		return fontFormatting.getUnderlineType();
	}

	/**
	 * get whether the font weight is set to bold or not
	 *
	 * @return bold - whether the font is bold or not
	 */
	public boolean isBold()
	{
		return fontFormatting.isFontWeightModified() && fontFormatting.isBold();
	}

	/**
	 * @return true if escapement type was modified from default   
	 */
	public boolean isEscapementTypeModified()
	{
		return fontFormatting.isEscapementTypeModified();
	}

	/**
	 * @return true if font cancellation was modified from default   
	 */
	public boolean isFontCancellationModified()
	{
		return fontFormatting.isFontCancellationModified();
	}

	/**
	 * @return true if font outline type was modified from default   
	 */
	public boolean isFontOutlineModified()
	{
		return fontFormatting.isFontOutlineModified();
	}

	/**
	 * @return true if font shadow type was modified from default   
	 */
	public boolean isFontShadowModified()
	{
		return fontFormatting.isFontShadowModified();
	}

	/**
	 * @return true if font style was modified from default   
	 */
	public boolean isFontStyleModified()
	{
		return fontFormatting.isFontStyleModified();
	}

	/**
	 * @return true if font style was set to <i>italic</i> 
	 */
	public boolean isItalic()
	{
		return fontFormatting.isFontStyleModified() && fontFormatting.isItalic();
	}

	/**
	 * @return true if font outline is on
	 */
	public boolean isOutlineOn()
	{
		return fontFormatting.isFontOutlineModified() && fontFormatting.isOutlineOn();
	}

	/**
	 * @return true if font shadow is on
	 */
	public boolean isShadowOn()
	{
		return fontFormatting.isFontOutlineModified() && fontFormatting.isShadowOn();
	}

	/**
	 * @return true if font strikeout is on
	 */
	public boolean isStruckout()
	{
		return fontFormatting.isFontCancellationModified() && fontFormatting.isStruckout();
	}

	/**
	 * @return true if font underline type was modified from default   
	 */
	public boolean isUnderlineTypeModified()
	{
		return fontFormatting.isUnderlineTypeModified();
	}

	/**
	 * @return true if font weight was modified from default   
	 */
	public boolean isFontWeightModified()
	{
		return fontFormatting.isFontWeightModified();
	}

	/**
	 * set font style options.
	 * 
	 * @param italic - if true, set posture style to italic, otherwise to normal 
	 * @param bold- if true, set font weight to bold, otherwise to normal
	 */
	
	public void setFontStyle(boolean italic, boolean bold)
	{
		boolean modified = italic || bold;
		fontFormatting.setItalic(italic);
		fontFormatting.setBold(bold);
		fontFormatting.setFontStyleModified(modified);
		fontFormatting.setFontWieghtModified(modified);
	}

	/**
	 * set font style options to default values (non-italic, non-bold)
	 */
	public void resetFontStyle()
	{
		setFontStyle(false,false);
	}

	/**
	 * set the escapement type for the font
	 *
	 * @param escapementType  super or subscript option
	 * @see #SS_NONE
	 * @see #SS_SUPER
	 * @see #SS_SUB
	 */
	public void setEscapementType(short escapementType)
	{
		switch(escapementType)
		{
			case HSSFFontFormatting.SS_SUB:
			case HSSFFontFormatting.SS_SUPER:
				fontFormatting.setEscapementType(escapementType);
				fontFormatting.setEscapementTypeModified(true);
				break;
			case HSSFFontFormatting.SS_NONE:
				fontFormatting.setEscapementType(escapementType);
				fontFormatting.setEscapementTypeModified(false);
				break;
			default:
		}
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setEscapementTypeModified(boolean)
	 */
	public void setEscapementTypeModified(boolean modified)
	{
		fontFormatting.setEscapementTypeModified(modified);
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontCancellationModified(boolean)
	 */
	public void setFontCancellationModified(boolean modified)
	{
		fontFormatting.setFontCancellationModified(modified);
	}

	/**
	 * @param fci
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontColorIndex(short)
	 */
	public void setFontColorIndex(short fci)
	{
		fontFormatting.setFontColorIndex(fci);
	}

	/**
	 * @param height
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontHeight(short)
	 */
	public void setFontHeight(int height)
	{
		fontFormatting.setFontHeight(height);
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontOutlineModified(boolean)
	 */
	public void setFontOutlineModified(boolean modified)
	{
		fontFormatting.setFontOutlineModified(modified);
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontShadowModified(boolean)
	 */
	public void setFontShadowModified(boolean modified)
	{
		fontFormatting.setFontShadowModified(modified);
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setFontStyleModified(boolean)
	 */
	public void setFontStyleModified(boolean modified)
	{
		fontFormatting.setFontStyleModified(modified);
	}

	/**
	 * @param on
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setOutline(boolean)
	 */
	public void setOutline(boolean on)
	{
		fontFormatting.setOutline(on);
		fontFormatting.setFontOutlineModified(on);
	}

	/**
	 * @param on
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setShadow(boolean)
	 */
	public void setShadow(boolean on)
	{
		fontFormatting.setShadow(on);
		fontFormatting.setFontShadowModified(on);
	}

	/**
	 * @param strike
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setStrikeout(boolean)
	 */
	public void setStrikeout(boolean strike)
	{
		fontFormatting.setStrikeout(strike);
		fontFormatting.setFontCancellationModified(strike);
	}

	/**
	 * set the type of underlining type for the font
	 *
	 * @param u  super or subscript option
	 *
	 * @see #U_NONE
	 * @see #U_SINGLE
	 * @see #U_DOUBLE
	 * @see #U_SINGLE_ACCOUNTING
	 * @see #U_DOUBLE_ACCOUNTING
	 */
	public void setUnderlineType(short underlineType)
	{
		switch(underlineType)
		{
			case HSSFFontFormatting.U_SINGLE:
			case HSSFFontFormatting.U_DOUBLE:
			case HSSFFontFormatting.U_SINGLE_ACCOUNTING:
			case HSSFFontFormatting.U_DOUBLE_ACCOUNTING:
				fontFormatting.setUnderlineType(underlineType);
				setUnderlineTypeModified(true);
				break;
				
			case HSSFFontFormatting.U_NONE:
				fontFormatting.setUnderlineType(underlineType);
				setUnderlineTypeModified(false);
				break;
			default:
		}
	}

	/**
	 * @param modified
	 * @see org.apache.poi.hssf.record.cf.FontFormatting#setUnderlineTypeModified(boolean)
	 */
	public void setUnderlineTypeModified(boolean modified)
	{
		fontFormatting.setUnderlineTypeModified(modified);
	}
}
