EventHandlerExtension

[joppiesaus]

Hi, I made some classes so it is easier for people to handle events in their plugins, for example to check if a button is clicked.

Class:

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Code: Select all

using System;
using System.Windows.Forms;

//                        \\
// Classes by: joppiesaus \\
//                        \\
// This was made for easier plugin coding in MCDzienny. All classes are V 1.0;
namespace EventHandlerExtension
{
    public class ClickEvent
    {
        /// <summary>
        /// This will return true when the control is clicked. Check this, and if true ALWAYS set it back to false.
        /// </summary>
        public bool buttonClicked { get; set; }
        Button button;
        event EventHandler clickedHandler;

        /// <summary>
        /// New event for clicked button.
        /// </summary>
        /// <param name="Button">Button</param>
        public ClickEvent(Button Button)
        {
            Button = button;
            initialize();
        }

        private void initialize()
        {
            button.Click += this.handleClick;
        }

        private void handleClick(object sender, EventArgs e)
        {
            this.clicked(EventArgs.Empty);
        }

        protected virtual void clicked(EventArgs e)
        {
            EventHandler hand = this.clickedHandler;
            if (hand != null)
            {
                hand(this, e);
            }
            buttonClicked = true;
        }
    }

    public class TextChangedEvent
    {
        /// <summary>
        /// This will return true when the control text is changed. Check this, and if true ALWAYS set it back to false.
        /// </summary>
        public bool textChanged { get; set; }
        TextBox textbox;
        event EventHandler textChangedHandler;

        /// <summary>
        /// New event for textchanged textbox.
        /// </summary>
        /// <param name="TextBox">TextBox</param>
        public TextChangedEvent(TextBox TextBox)
        {
            textbox = TextBox;
            initialize();
        }

        private void initialize()
        {
            textbox.TextChanged += this.handleTextChanged;
        }

        private void handleTextChanged(object sender, EventArgs e)
        {
            this.Changed(EventArgs.Empty);
        }

        protected virtual void Changed(EventArgs e)
        {
            EventHandler hand = this.textChangedHandler;
            if (hand != null)
            {
                hand(this, e);
            }
            textChanged = true;
        }
    }

    public class CheckedChangedEvent
    {
        /// <summary>
        /// This will return true when the control checked is changed. Check this, and if true ALWAYS set it back to false.
        /// </summary>
        public bool checkedChanged { get; set; }
        CheckBox checkbox;
        event EventHandler checkedChangedHandler;

        /// <summary>
        /// New event for Checkbox CheckedChanged
        /// </summary>
        /// <param name="CheckBox">CheckBox</param>
        public CheckedChangedEvent(CheckBox CheckBox)
        {
            checkbox = CheckBox;
            initialize();
        }

        private void initialize()
        {
            checkbox.CheckedChanged += this.handleCheckedChanged;
        }

        private void handleCheckedChanged(object sender, EventArgs e)
        {
            this.Changed(EventArgs.Empty);
        }

        protected virtual void Changed(EventArgs e)
        {
            EventHandler hand = this.checkedChangedHandler;
            if (hand != null)
            {
                hand(this, e);
            }
            checkedChanged = true;
        }
    }
}


(I know, the initialize void is something that is not needed, but for the future I created one.)

Example:

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Code: Select all

using System;
using System.Windows.Forms;

namespace example
{
    class exampleClass
    {
        static Button button = new Button();
        EventHandlerExtension.ClickEvent click;
        //dummy bool
        bool clicked = false;

        public exampleClass()
        {
            //define a new ClickEvent for the button
            click = new EventHandlerExtension.ClickEvent(button);

            //infinite loop
            while (1 == 1)
            {
                //is the button clickced?
                if (click.buttonClicked)
                {
                    clicked = true;
                    click.buttonClicked = false;
                }
            }
        }
    }
}


I hope this will help people . This will cover the most basic things, the rest you have to code yourself.
Let me know if you have comments on this.

[joppiesaus]

This is only important if you want to communicate between the Plugin class and your UserControl. You can just generate a UserControl and put events in there, is easier.