Opentk/Source/Examples/WinForms/Cube.cs

210 lines
5.4 KiB
C#

#region --- License ---
/* This source file is released under the MIT license. See License.txt for more information.
* Coded by Erik Ylvisaker and Stefanos Apostolopoulos.
*/
#endregion
#region --- Using directives ---
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using OpenTK.OpenGL;
using Enums = OpenTK.OpenGL.Enums;
using OpenTK.Platform;
#endregion
namespace Examples.WinForms
{
public partial class Cube : Form, IExample
{
static float angle;
#region --- Constructor ---
public Cube()
{
InitializeComponent();
Application.Idle += Application_Idle;
this.ShowDialog();
}
#endregion
#region Closing event
protected override void OnClosing(CancelEventArgs e)
{
base.OnClosing(e);
Application.Idle -= Application_Idle;
}
#endregion
#region Application_Idle event
void Application_Idle(object sender, EventArgs e)
{
while (glControl.IsIdle)
{
Render();
}
}
#endregion
#region private void Render()
private void Render()
{
GL.MatrixMode(Enums.MatrixMode.MODELVIEW);
GL.LoadIdentity();
Glu.LookAt(
0.0, 5.0, 5.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0
);
GL.Rotatef(angle, 0.0f, 1.0f, 0.0f);
angle += 0.5f;
GL.Clear(Enums.ClearBufferMask.COLOR_BUFFER_BIT | Enums.ClearBufferMask.DEPTH_BUFFER_BIT);
DrawCube();
glControl.Context.SwapBuffers();
}
#endregion
#region Load event handler
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Text =
GL.GetString(Enums.StringName.VENDOR) + " " +
GL.GetString(Enums.StringName.RENDERER) + " " +
GL.GetString(Enums.StringName.VERSION);
GL.ClearColor(0.1f, 0.1f, 0.5f, 0.0f);
GL.Enable(Enums.EnableCap.DEPTH_TEST);
glControl.KeyDown += new KeyEventHandler(Cube_KeyDown);
OnResize(e);
}
#endregion
#region Resize event handler
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
if (ClientSize.Height == 0)
ClientSize = new System.Drawing.Size(ClientSize.Width, 1);
GL.Viewport(0, 0, ClientSize.Width, ClientSize.Height);
double ratio = 0.0;
ratio = ClientSize.Width / (double)ClientSize.Height;
//if (ClientSize.Width > ClientSize.Height)
// ratio = ClientSize.Width / (double)ClientSize.Height;
//else
// ratio = ClientSize.Height / (double)ClientSize.Width;
GL.MatrixMode(Enums.MatrixMode.PROJECTION);
GL.LoadIdentity();
Glu.Perspective(45.0, ratio, 1.0, 64.0);
}
#endregion
#region Paint event handler
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Render();
}
#endregion
#region KeyDown event handler
void Cube_KeyDown(object sender, KeyEventArgs e)
{
if (e.Alt && e.Shift)
{
//this.SetResolution(this.Width, this.Height, this.ColorDepth, !this.IsFullscreen);
glControl.Fullscreen = !glControl.Fullscreen;
}
switch (e.KeyData)
{
case Keys.Escape:
this.Close();
break;
}
}
#endregion
#region DrawCube
public void DrawCube()
{
GL.Begin(Enums.BeginMode.QUADS);
GL.Color3f(1, 0, 0);
GL.Vertex3f(-1.0f, -1.0f, -1.0f);
GL.Vertex3f(-1.0f, 1.0f, -1.0f);
GL.Vertex3f(1.0f, 1.0f, -1.0f);
GL.Vertex3f(1.0f, -1.0f, -1.0f);
GL.Color3f(1, 1, 0);
GL.Vertex3f(-1.0f, -1.0f, -1.0f);
GL.Vertex3f(1.0f, -1.0f, -1.0f);
GL.Vertex3f(1.0f, -1.0f, 1.0f);
GL.Vertex3f(-1.0f, -1.0f, 1.0f);
GL.Color3f(1, 0, 1);
GL.Vertex3f(-1.0f, -1.0f, -1.0f);
GL.Vertex3f(-1.0f, -1.0f, 1.0f);
GL.Vertex3f(-1.0f, 1.0f, 1.0f);
GL.Vertex3f(-1.0f, 1.0f, -1.0f);
GL.Color3f(0, 1, 0);
GL.Vertex3f(-1.0f, -1.0f, 1.0f);
GL.Vertex3f(1.0f, -1.0f, 1.0f);
GL.Vertex3f(1.0f, 1.0f, 1.0f);
GL.Vertex3f(-1.0f, 1.0f, 1.0f);
GL.Color3f(0, 0, 1);
GL.Vertex3f(-1.0f, 1.0f, -1.0f);
GL.Vertex3f(-1.0f, 1.0f, 1.0f);
GL.Vertex3f(1.0f, 1.0f, 1.0f);
GL.Vertex3f(1.0f, 1.0f, -1.0f);
GL.Color3f(0, 1, 1);
GL.Vertex3f(1.0f, -1.0f, -1.0f);
GL.Vertex3f(1.0f, 1.0f, -1.0f);
GL.Vertex3f(1.0f, 1.0f, 1.0f);
GL.Vertex3f(1.0f, -1.0f, 1.0f);
GL.End();
}
#endregion
}
}