/// <summary>
/// Draws a specified amount of vertices starting at a given offset.
/// </summary>
/// <remarks>
/// DOES NOT BIND THE <see cref="VertexArrayObject"/>, THIS NEEDS TO BE DONE MANUALLY!
/// </remarks>
/// <param name="offset">The offset to start drawing at.</param>
/// <param name="count">The amount of vertices to draw.</param>
public void DrawIndexed(int offset, int count)
{
Contract.Requires<ArgumentOutOfRangeException>(offset >= 0);
Contract.Requires<ArgumentOutOfRangeException>(count >= 0);
this.VerifyAccess();
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Drawing, this.Drawn, count, count))
{
GL.DrawElements(this.DrawMode, count, this.IndexType, offset);
}
}
/// <summary>
/// Resets the instance to the default values.
/// </summary>
/// <example>
/// <see cref="Transform"/> resets its local position / rotation / scaling to zero / identity / one.
/// </example>
public void Reset()
{
lock (this.stateLock)
{
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Resetting, this.Resetted))
{
this.OnReset();
}
}
}
/// <summary>
/// Loads the instance.
/// </summary>
/// <remarks>Calls to <see cref="M:Load"/> will be ignored if the instance is already loaded.</remarks>
public void Load()
{
if (!this.IsLoaded)
{
lock (this.stateLock)
{
if (!this.IsLoaded)
{
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Loading, this.Loaded))
{
this.OnLoad();
this.IsLoaded = true;
}
}
}
}
}
/// <summary>
/// Enables the instance.
/// </summary>
/// <remarks>Calls to <see cref="M:Enable"/> will be ignored if the instance is already enabled.</remarks>
public void Enable()
{
if (this.IsLoaded && !this.IsEnabled)
{
lock (this.stateLock)
{
if (this.IsLoaded && !this.IsEnabled)
{
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Enabling, this.Enabled))
{
this.OnEnable();
this.IsEnabled = true;
}
}
}
}
}
/// <summary>
/// Triggers binding and drawing of the element.
/// </summary>
public void Draw()
{
if (this.IsLoaded && this.IsEnabled)
{
lock (this.stateLock)
{
if (this.IsLoaded && this.IsEnabled)
{
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Drawing, this.Drawn))
{
this.OnDraw();
}
}
}
}
}
/// <summary>
/// Disables the instance
/// </summary>
/// <remarks>Calls to <see cref="M:Disable"/> will be ignored if the instance is already disabled.</remarks>
public void Disable()
{
if (this.IsLoaded && this.IsEnabled)
{
lock (this.stateLock)
{
if (this.IsLoaded && this.IsEnabled)
{
using (ParameterEventArgsRaiser raiser = new ParameterEventArgsRaiser(this, this.Disabling, this.Disabled))
{
this.OnDisable();
this.IsEnabled = false;
}
}
}
}
}
