读取文字点阵。

/***********************************************************************************

 *

 * Copyright (C) 2004 Ming Run.

 *

 * This software is provided 'as-is', without any express or implied warranty. In no

 * event will the authors be held liable for (any damages arising from the use of this

 * software.

 *

 * Permission is granted to anyone to use this software for (any purpose, including

 * commercial applications, and to alter it and redistribute it freely, subject to the

 * following restrictions:

 *

 * 1. The origin of this software must not be misrepresented; you must not claim that

 * you wrote the original software. If you use this software in a product, an

 * acknowledgment (see the following) in the product documentation is required.

 *

 * Copyright (C) 2004 Ming Run.

 *

 * 2. Altered source versions must be plainly marked as such, and must not be

 * misrepresented as being the original software.

 *

 * 3. This notice may not be removed or altered from any source distribution.

 *

 ***********************************************************************************/

 

import System;

import System.Drawing;

import System.Windows.Forms;

import NUnit.Framework;

 

package Runmin.Sample

{

    class ImageApplication extends Form

    {

       private var topPanel : Panel           = new Panel();

       private var bottomPanel : Panel        = new Panel();

      

       private var button       : Button      = new Button();

       private var richTextBox  : RichTextBox = new RichTextBox();

       private var textBox      : TextBox     = new TextBox();

 

       public function ImageApplication()

       {

           this("Sample Application.");

       }

 

       public function ImageApplication(caption : String)

       {

           this.Text = caption;

           this.DockPadding.All = 5;

           this.WindowState = 2;

 

           this.Controls.Add(this.topPanel);

           this.Controls.Add(this.bottomPanel);

 

           this.topPanel.Dock          = 5;

          

           this.bottomPanel.Dock       = 2;

           this.bottomPanel.Size       = new System.Drawing.Size(0, 18);

 

           this.button.Dock         = 4;

           this.button.FlatStyle       = 1;

           this.button.Text         = "Process";

 

           this.textBox.Dock        = 4;

           this.textBox.BorderStyle = 1;

           this.textBox.MaxLength      = 1;

 

           this.richTextBox.Dock       = 5;

           this.richTextBox.WordWrap   = false;

           this.richTextBox.Font       = new System.Drawing.Font("Courier New", 8);

 

           this.topPanel.Controls.Add(this.richTextBox);

 

           this.bottomPanel.Controls.Add(this.textBox);

           this.bottomPanel.Controls.Add(this.button);

 

           this.button.add_Click(this.button_Click);

       }

 

       private function button_Click(sender, e : EventArgs)

       {

            var dialog : FontDialog = new FontDialog();

 

            dialog.ShowDialog();

 

            var bitmap : Bitmap = new Bitmap(150, 150);

 

            var graphics : Graphics = Graphics.FromImage(bitmap);

 

            graphics.DrawString(this.textBox.Text, dialog.Font, Brushes.Black, 0, 0);

 

           var result : System.Text.StringBuilder  = new System.Text.StringBuilder();

 

           var x : int = 0;

           var y : int = 0;

 

            for (x = 0; x < bitmap.Width; x++)

            {

                for (y = 0; y < bitmap.Height; y++)

                {

                    if (bitmap.GetPixel(y, x).ToArgb() == 0) result.Append(" ");

                    else result.Append("*");

                }

                result.Append("/n");

            }

 

            this.richTextBox.Text = result.ToString();

       }

    }

}

 

Application.Run(new Runmin.Sample.ImageApplication());