/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.UserControl.Load" /> event.
/// Sets all the properties up but only if the form is not in designer mode,
/// because OpenGL calls in the Designer cause errors.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
_rect = new Rectangle(0, 0, this.Size.Width, this.Size.Height);
this.MakeCurrent();
if (!(IsInDesignerMode()))
{
_shaders = new Shaders(Resources.LineShader_vert, Resources.LineShader_frag, Resources.TextShader_vert, Resources.TextShader_frag);
_textInstance = new TextInstance(_shaders);
_graphPane = new GraphPane(_rect, _textInstance);
_graphPane.ReSize(new GLRectangleF(0, 0, (int)_rect.Width, (int)_rect.Height));
_textInstance.GenerateFontImage(_graphPane.Rect);
GL.ClearColor(1.0f, 1.0f, 1.0f, 0.0f);
_zoomPanState = new ZoomPanState(ref _graphPane);
_FrameTimer.Tick += FrameTimer_Tick;
_FrameTimer.Interval = 25;
_FrameTimer.Start();
_stopwatch = new Stopwatch();
_stopwatch2 = new Stopwatch();
_stopwatch.Reset();
_stopwatch2.Reset();
_stopwatch.Start();
}
}
/// <summary>
/// drawing method to override
/// </summary>
/// <param name="zoomPanState">State of the zoom pan.</param>
public virtual void InitDraw(ZoomPanState zoomPanState)
{
if (_rect.Width <= 1 || _rect.Height <= 1)
{
return;
}
DrawPaneFrame();
}
/// <summary>
/// Sets up the transformation matrices of each YAxis.
/// </summary>
/// <param name="pane">The pane.</param>
/// <param name="zoomPanState">State of the zoom pan.</param>
/// <param name="tempXAxis">The temporary x axis.</param>
internal void SetUpScales(GraphPane pane, ZoomPanState zoomPanState, XAxis tempXAxis)
{
foreach (YAxis axis in this)
{
Matrix4 translationToCorner = Matrix4.CreateTranslation(-1, -1, 0); //Default Translation, damit (0,0) im unteren linken Eck ist
Matrix4 translationToScaleMin = Matrix4.CreateTranslation(-(float)tempXAxis.Scale.Min, -(float)axis.Scale.Min, 0); //Skalierung der X Achse
Matrix4 scale = Matrix4.CreateScale((float)(2 / (tempXAxis.Scale.Max - tempXAxis.Scale.Min)),
(float)(2 / (axis.Scale.Max - axis.Scale.Min)),
1);
axis.TraFo = translationToScaleMin * scale * translationToCorner;//store the result into its axis
}
}
/// <summary>
/// Draws an empty <see cref="global::CPHControl"/> so the screen is not black
/// if there are no points
/// </summary>
/// <param name="zoomPanState">State of the zoom pan.</param>
public override void InitDraw(ZoomPanState zoomPanState)
{
base.InitDraw(zoomPanState);
_chart.Rect = CalcChartRect();
_chart.pGL_Border.Draw(_chart.Rect);
_yAxisList.SetUpScales(this, zoomPanState, this.PXAxis);
_xAxis.Draw(this, _chart);
_yAxisList.Draw(this, _chart);
}
/// <summary>
/// Draws the whole <see cref="global::CPHControl"/> one part after the other.
/// </summary>
/// <param name="zoomPanState">State of the zoom and pan.</param>
public override void Draw(ZoomPanState zoomPanState)
{
base.Draw(zoomPanState);
_chart.Rect = CalcChartRect();
_chart.pGL_Border.Draw(_chart.Rect);
_textInstance.DrawTimes(this, _frameTime, _runTime);
_yAxisList.SetUpScales(this, zoomPanState, this.PXAxis);
_curveList.Draw(this);
_xAxis.Draw(this, _chart);
_yAxisList.Draw(this, _chart);
_legend.Draw(this);
}