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A Professional HTML Renderer You Will Use

, 29 Jan 2009
100% managed code that draws HTML on any device
HtmlDemo.002.zip
HtmlDemo.zip
System.Drawing.Html.002.zip
System.Drawing.Html
Html Demo
bin
Debug
Html Demo.exe
Html Demo.vshost.exe
HtmlDemo.zip
System.Drawing.Html.dll
Html Demo.csproj.user
Properties
Settings.settings
Resources
comment16.gif
delete16.gif
delete32.gif
exclamation32.png
favorites32.png
font32.png
formula32.png
image32.png
method16.gif
paly32.png
property16.gif
property32.png
refreshdocument32.png
web_pallete.gif
Window.gif
Samples
System.Drawing.Html.suo
System.Drawing.Html
bin
Debug
System.Drawing.Html.dll
System.Drawing.Html.vshost.exe
Properties
Settings.settings
System.Drawing.Html.zip
Html Demo.exe
Html Demo.vshost.exe
System.Drawing.Html.dll
Html Demo.csproj.user
Settings.settings
comment16.gif
delete16.gif
delete32.gif
exclamation32.png
favorites32.png
font32.png
formula32.png
image32.png
method16.gif
paly32.png
property16.gif
property32.png
refreshdocument32.png
web_pallete.gif
Window.gif
System.Drawing.Html.suo
System.Drawing.Html.dll
System.Drawing.Html.vshost.exe
Settings.settings
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;

namespace System.Drawing.Html
{
    /// <summary>
    /// Provides HTML rendering on the tooltips
    /// </summary>
    public class HtmlToolTip
        : ToolTip
    {
        #region Fields

        private InitialContainer container;

        #endregion

        #region Ctor

        public HtmlToolTip()
        {

            OwnerDraw = true;

            Popup += new PopupEventHandler(HtmlToolTip_Popup);
            Draw += new DrawToolTipEventHandler(HtmlToolTip_Draw);

        }

        #endregion

        void HtmlToolTip_Popup(object sender, PopupEventArgs e)
        {
            string text = this.GetToolTip(e.AssociatedControl);
            string font = string.Format("font: {0}pt {1}", e.AssociatedControl.Font.Size, e.AssociatedControl.Font.FontFamily.Name);
            
            //Create fragment container
            container = new InitialContainer("<table class=htmltooltipbackground cellspacing=5 cellpadding=0 style=\"" + font + "\"><tr><td style=border:0px>" + text + "</td></tr></table>");
            container.SetBounds(new Rectangle(0, 0, 10, 10));
            container.AvoidGeometryAntialias = true;
            
            //Measure bounds of the container
            using (Graphics g = e.AssociatedControl.CreateGraphics())
            {
                container.MeasureBounds(g);
            }

            //Set the size of the tooltip
            e.ToolTipSize = Size.Round(container.MaximumSize);
            Console.WriteLine("Ttip: " + container.MaximumSize.ToString());

        }

        void HtmlToolTip_Draw(object sender, DrawToolTipEventArgs e)
        {
            e.Graphics.Clear(Color.White);

            if (container != null)
            {
                //Draw HTML!
                container.Paint(e.Graphics);
            }

        }
    }
}

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License

This article, along with any associated source code and files, is licensed under The BSD License

About the Author

Jose Menendez Póo
Team Leader
Mexico Mexico
I'm in game programming now: https://itunes.apple.com/us/app/ugly-aliens-training-center/id859271884?ls=1&mt=8
 
Jose Manuel Menéndez Poó
 
- I've been programming Windows and Web apps since 1997.
- My greatest concern nowadays is user interface usability.
 
Questions and stuff by twitter: @menendezpoo
 
Blog
menendezpoo.com

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Web04 | 2.8.140721.1 | Last Updated 30 Jan 2009
Article Copyright 2009 by Jose Menendez Póo
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