private void control_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
if (m_visible)
{
bool disposeOfTransform = false;
Matrix transform;
if (m_transformAdapter != null)
{
transform = m_transformAdapter.Transform;
}
else
{
transform = new Matrix();
disposeOfTransform = true;
}
RectangleF clientRect = AdaptedControl.ClientRectangle;
RectangleF canvasRect = GdiUtil.InverseTransform(transform, clientRect);
// draw horizontal lines
ChartUtil.DrawHorizontalGrid(transform, canvasRect, m_verticalGridSpacing, m_gridColor, e.Graphics);
// draw vertical lines
ChartUtil.DrawVerticalGrid(transform, canvasRect, m_horizontalGridSpacing, m_gridColor, e.Graphics);
if (disposeOfTransform)
{
transform.Dispose();
}
}
}
// draw dragged events
private void control_DrawingD2d(object sender, EventArgs e)
{
if (m_visible)
{
var d2dControl = AdaptedControl as D2dAdaptableControl;
Matrix3x2F xform = d2dControl.D2dGraphics.Transform;
d2dControl.D2dGraphics.Transform = Matrix3x2F.Identity;
Matrix transform = m_transformAdapter.Transform;
RectangleF clientRect = AdaptedControl.ClientRectangle;
RectangleF canvasRect = GdiUtil.InverseTransform(transform, clientRect);
D2dAntialiasMode oldAA = d2dControl.D2dGraphics.AntialiasMode;
d2dControl.D2dGraphics.AntialiasMode = D2dAntialiasMode.Aliased;
// draw horizontal lines
ChartUtil.DrawHorizontalGrid(transform, canvasRect, m_verticalGridSpacing, m_gridColor, d2dControl.D2dGraphics);
// draw vertical lines
ChartUtil.DrawVerticalGrid(transform, canvasRect, m_horizontalGridSpacing, m_gridColor, d2dControl.D2dGraphics);
d2dControl.D2dGraphics.Transform = xform;
d2dControl.D2dGraphics.AntialiasMode = oldAA;
}
}