BETA: Introducing `HtmlUtil` class containing useful methods for constructing HTML.

	* Page functions
		* Patch by: !UnAfraid
	* Gauge functions.
		* Patch by: Nos

Reviewed by: Nos, !UnAfraid, Zoey76, St3et, xban1x

L2J_Server_BETA/java/com/l2jserver/gameserver/model/PageResult.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * L2J Server is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jserver.gameserver.model;
+
+/**
+ * @author UnAfraid
+ */
+public class PageResult
+{
+	private final int _pages;
+	private final StringBuilder _pagerTemplate;
+	private final StringBuilder _bodyTemplate;
+	
+	public PageResult(int pages, StringBuilder pagerTemplate, StringBuilder bodyTemplate)
+	{
+		_pages = pages;
+		_pagerTemplate = pagerTemplate;
+		_bodyTemplate = bodyTemplate;
+	}
+	
+	public int getPages()
+	{
+		return _pages;
+	}
+	
+	public StringBuilder getPagerTemplate()
+	{
+		return _pagerTemplate;
+	}
+	
+	public StringBuilder getBodyTemplate()
+	{
+		return _bodyTemplate;
+	}
+}

L2J_Server_BETA/java/com/l2jserver/util/HtmlUtil.java

@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * L2J Server is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jserver.util;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import com.l2jserver.gameserver.model.PageResult;
+import com.l2jserver.gameserver.model.interfaces.IProcedure;
+
+/**
+ * A class containing useful methods for constructing HTML
+ * @author Nos
+ */
+public class HtmlUtil
+{
+	/**
+	 * Gets the HTML representation of CP gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getCpGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_CP_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_CP_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of HP gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getHpGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_HP_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_HP_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of HP Warn gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getHpWarnGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_HPWarn_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_HPWarn_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of HP Fill gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getHpFillGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_HPFill_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_HPFill_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of MP Warn gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getMpGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_MP_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_MP_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of EXP Warn gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getExpGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_EXP_bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_EXP_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of Food gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @return the HTML
+	 */
+	public static String getFoodGauge(int width, long current, long max, boolean displayAsPercentage)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_Food_Bg_Center", "L2UI_CT1.Gauges.Gauge_DF_Large_Food_Center", 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of Weight gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @param type a number from 1 to 5 for the 5 different colors of weight gauge
+	 * @return the HTML
+	 */
+	public static String getWeightGauge(int width, long current, long max, boolean displayAsPercentage, long type)
+	{
+		return getGauge(width, current, max, displayAsPercentage, "L2UI_CT1.Gauges.Gauge_DF_Large_Weight_bg_Center" + type, "L2UI_CT1.Gauges.Gauge_DF_Large_Weight_Center" + type, 17, -13);
+	}
+	
+	/**
+	 * Gets the HTML representation of a gauge.
+	 * @param width the width
+	 * @param current the current value
+	 * @param max the max value
+	 * @param displayAsPercentage if {@code true} the text in middle will be displayed as percent else it will be displayed as "current / max"
+	 * @param backgroundImage the background image
+	 * @param image the foreground image
+	 * @param imageHeight the image height
+	 * @param top the top adjustment
+	 * @return the HTML
+	 */
+	private static String getGauge(int width, long current, long max, boolean displayAsPercentage, String backgroundImage, String image, long imageHeight, long top)
+	{
+		current = Math.min(current, max);
+		final StringBuilder sb = new StringBuilder();
+		sb.append("<table width=");
+		sb.append(width);
+		sb.append(" cellpadding=0 cellspacing=0>");
+		sb.append("<tr>");
+		sb.append("<td background=\"");
+		sb.append(backgroundImage);
+		sb.append("\">");
+		sb.append("<img src=\"");
+		sb.append(image);
+		sb.append("\" width=");
+		sb.append((long) (((double) current / max) * width));
+		sb.append(" height=");
+		sb.append(imageHeight);
+		sb.append(">");
+		sb.append("</td>");
+		sb.append("</tr>");
+		sb.append("<tr>");
+		sb.append("<td align=center>");
+		sb.append("<table cellpadding=0 cellspacing=");
+		sb.append(top);
+		sb.append(">");
+		sb.append("<tr>");
+		sb.append("<td>");
+		if (displayAsPercentage)
+		{
+			sb.append("<table cellpadding=0 cellspacing=2>");
+			sb.append("<tr><td>");
+			sb.append(String.format("%.2f%%", ((double) current / max) * 100));
+			sb.append("</td></tr>");
+			sb.append("</table>");
+		}
+		else
+		{
+			int tdWidth = (width - 10) / 2;
+			sb.append("<table cellpadding=0 cellspacing=0>");
+			sb.append("<tr>");
+			sb.append("<td width=");
+			sb.append(tdWidth);
+			sb.append(" align=right>");
+			sb.append(current);
+			sb.append("</td>");
+			sb.append("<td width=10 align=center>/</td>");
+			sb.append("<td width=");
+			sb.append(tdWidth);
+			sb.append(">");
+			sb.append(max);
+			sb.append("</td>");
+			sb.append("</tr>");
+			sb.append("</table>");
+		}
+		sb.append("</td>");
+		sb.append("</tr>");
+		sb.append("</table>");
+		sb.append("</td>");
+		sb.append("</tr>");
+		sb.append("</table>");
+		return sb.toString();
+	}
+	
+	public static <T> PageResult createPage(Collection<T> elements, int page, int elementsPerPage, IProcedure<Integer, String> pagerProcedure, IProcedure<T, String> bodyProcedure)
+	{
+		return createPage(elements, elements.size(), page, elementsPerPage, pagerProcedure, bodyProcedure);
+	}
+	
+	public static <T> PageResult createPage(T[] elements, int page, int elementsPerPage, IProcedure<Integer, String> pagerProcedure, IProcedure<T, String> bodyProcedure)
+	{
+		return createPage(Arrays.asList(elements), elements.length, page, elementsPerPage, pagerProcedure, bodyProcedure);
+	}
+	
+	public static <T> PageResult createPage(Iterable<T> elements, int size, int page, int elementsPerPage, IProcedure<Integer, String> pagerProcedure, IProcedure<T, String> bodyProcedure)
+	{
+		int pages = size / elementsPerPage;
+		if ((elementsPerPage * pages) < size)
+		{
+			pages++;
+		}
+		
+		final StringBuilder pagerTemplate = new StringBuilder();
+		if (pages > 1)
+		{
+			for (int i = 0; i < pages; i++)
+			{
+				pagerTemplate.append(pagerProcedure.execute(i));
+			}
+		}
+		
+		if (page >= pages)
+		{
+			page = pages - 1;
+		}
+		
+		int start = 0;
+		if (page > 0)
+		{
+			start = elementsPerPage * page;
+		}
+		
+		final StringBuilder sb = new StringBuilder();
+		int i = 0;
+		for (T element : elements)
+		{
+			if (i++ < start)
+			{
+				continue;
+			}
+			
+			sb.append(bodyProcedure.execute(element));
+			
+			if (i >= (elementsPerPage + start))
+			{
+				break;
+			}
+		}
+		return new PageResult(pages, pagerTemplate, sb);
+	}
+}