124 lines
3.5 KiB
C#
124 lines
3.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using OpenTK.Graphics;
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namespace Examples.WinForms
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{
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[Example("Font rendering sample", ExampleCategory.WinForms)]
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public partial class FontRendering : Form
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{
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#region Fields
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//float[] sizes = new float[] { 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 28, 32, 36, 42, 48 };
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float[] sizes = new float[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 24 };
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List<Font> fonts = new List<Font>();
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TextPrinter printer = new TextPrinter();
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#endregion
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#region Constructors
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public FontRendering()
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{
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InitializeComponent();
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ResizeRedraw = true;
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UpdateFontList(fontDialog.Font);
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glControl1_Resize(this, EventArgs.Empty);
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}
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#endregion
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#region Private Members
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void UpdateFontList(Font base_font)
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{
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printer.Clear();
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foreach (Font font in fonts)
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font.Dispose();
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fonts.Clear();
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foreach (float size in sizes)
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fonts.Add(new Font(base_font.Name, base_font.SizeInPoints + size, base_font.Style));
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}
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#endregion
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#region Events
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private void glControl1_Load(object sender, EventArgs e)
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{
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glControl1.MakeCurrent();
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}
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private void changeFont_Click(object sender, EventArgs e)
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{
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if (fontDialog.ShowDialog() == DialogResult.OK)
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{
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UpdateFontList(fontDialog.Font);
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glControl1.Invalidate();
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}
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}
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private void textBox1_TextChanged(object sender, EventArgs e)
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{
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glControl1.Invalidate();
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}
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private void glControl1_Paint(object sender, PaintEventArgs e)
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{
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glControl1.MakeCurrent();
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GL.ClearColor(Color.MidnightBlue);
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GL.Clear(ClearBufferMask.ColorBufferBit);
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GL.MatrixMode(MatrixMode.Projection);
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GL.LoadIdentity();
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GL.Ortho(0, glControl1.ClientSize.Width, glControl1.ClientSize.Height, 0, -1, 1);
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GL.MatrixMode(MatrixMode.Modelview);
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GL.LoadIdentity();
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foreach (Font font in fonts)
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{
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printer.Print(textBox1.Text, font, Color.White);
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GL.Translate(0, font.Height + 5, 0);
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}
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glControl1.SwapBuffers();
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}
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private void glControl1_Resize(object sender, EventArgs e)
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{
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glControl1.MakeCurrent();
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if (glControl1.ClientSize.Height == 0)
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glControl1.ClientSize = new System.Drawing.Size(glControl1.ClientSize.Width, 1);
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GL.Viewport(0, 0, glControl1.ClientSize.Width, glControl1.ClientSize.Height);
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}
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#endregion
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#region public static void Main()
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/// <summary>
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/// Entry point of this example.
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/// </summary>
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[STAThread]
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public static void Main()
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{
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using (FontRendering example = new FontRendering())
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{
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Utilities.SetWindowTitle(example);
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example.ShowDialog();
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}
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}
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#endregion
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}
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}
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