private void control_DrawingD2d(object sender, EventArgs e)
{
if (Selector.IsSelecting)
{
var d2dControl = (D2dAdaptableControl)sender;
D2dGraphics g = d2dControl.D2dGraphics;
// Replace transform and anti-aliasing setting.
Matrix3x2F xform = d2dControl.D2dGraphics.Transform;
d2dControl.D2dGraphics.Transform = Matrix3x2F.Identity;
D2dAntialiasMode oldAA = d2dControl.D2dGraphics.AntialiasMode;
d2dControl.D2dGraphics.AntialiasMode = D2dAntialiasMode.Aliased;
// Draw the selection rectangle.
Rectangle rect = MakeSelectionRect(
ClientToCanvas(Selector.CurrentPoint), ClientToCanvas(Selector.FirstPoint));
rect.Intersect(AdaptedControl.ClientRectangle);
var rectF = new RectangleF(rect.X, rect.Y, rect.Width, rect.Height);
g.DrawRectangle(rectF, SelectionBorderColor, 1.0f, null);
g.FillRectangle(rectF, SelectionFillColor);
// Restore D2dGraphics settings.
d2dControl.D2dGraphics.Transform = xform;
d2dControl.D2dGraphics.AntialiasMode = oldAA;
}
}
/// <summary>
/// Draws a key</summary>
/// <param name="key">Key</param>
/// <param name="bounds">Bounding rectangle, computed during layout phase</param>
/// <param name="drawMode">Drawing mode</param>
/// <param name="c">Drawing context</param>
protected override void Draw(IKey key, RectangleF bounds, DrawMode drawMode, Context c)
{
Color color = key.Color;
bounds.Width = bounds.Height = KeySize; // key is always square, fixed size
switch (drawMode & DrawMode.States)
{
case DrawMode.Normal:
c.Graphics.FillEllipse(bounds, color);
if ((drawMode & DrawMode.Selected) != 0)
{
D2dAntialiasMode originalAntiAliasMode = c.Graphics.AntialiasMode;
c.Graphics.AntialiasMode = D2dAntialiasMode.PerPrimitive;
c.Graphics.DrawEllipse(
new D2dEllipse(
new PointF(bounds.X + bounds.Width * 0.5f, bounds.Y + bounds.Height * 0.5f),
bounds.Width * 0.5f, bounds.Height * 0.5f),
SelectedBrush, 3.0f);
c.Graphics.AntialiasMode = originalAntiAliasMode;
}
break;
case DrawMode.Collapsed:
c.Graphics.FillEllipse(bounds, CollapsedBrush);
break;
case DrawMode.Ghost:
c.Graphics.FillEllipse(bounds, Color.FromArgb(128, color));
c.Graphics.DrawText(
GetXPositionString(bounds.Left + KeySize * 0.5f, c),
c.TextFormat,
new PointF(bounds.Right + 16, bounds.Y),
TextBrush);
break;
case DrawMode.Invalid:
c.Graphics.FillEllipse(bounds, InvalidBrush);
break;
}
}
// 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;
}
}
/// <summary>
/// Specifies a rectangle to which all subsequent drawing operations are clipped</summary>
/// <remarks>The clipRect is transformed by the current world transform set on the render target.
/// After the transform is applied to the clipRect that is passed in, the axis-aligned
/// bounding box for the clipRect is computed. For efficiency, the contents are clipped
/// to this axis-aligned bounding box and not to the original clipRect that is passed in.</remarks>
/// <param name="clipRect">The size and position of the clipping area, in pixels</param>
/// <param name="antialiasMode">The antialiasing mode that is used to draw the edges of clip rects that have subpixel
/// boundaries, and to blend the clip with the scene contents. The blending is performed
/// once when the PopAxisAlignedClip method is called, and does not apply to each
/// primitive within the layer.</param>
public void PushAxisAlignedClip(RectangleF clipRect, D2dAntialiasMode antialiasMode)
{
m_clipStack.Push(clipRect);
m_renderTarget.PushAxisAlignedClip(clipRect.ToSharpDX(), (AntialiasMode)antialiasMode);
}
/// <summary>
/// Specifies a rectangle to which all subsequent drawing operations are clipped</summary>
/// <remarks>The clipRect is transformed by the current world transform set on the render target.
/// After the transform is applied to the clipRect that is passed in, the axis-aligned
/// bounding box for the clipRect is computed. For efficiency, the contents are clipped
/// to this axis-aligned bounding box and not to the original clipRect that is passed in.</remarks>
/// <param name="clipRect">The size and position of the clipping area, in pixels</param>
/// <param name="antialiasMode">The antialiasing mode that is used to draw the edges of clip rects that have subpixel
/// boundaries, and to blend the clip with the scene contents. The blending is performed
/// once when the PopAxisAlignedClip method is called, and does not apply to each
/// primitive within the layer.</param>
public void PushAxisAlignedClip(RectangleF clipRect, D2dAntialiasMode antialiasMode)
{
m_clipStack.Push(clipRect);
var rect = new SharpDX.RectangleF(clipRect.Left, clipRect.Top, clipRect.Right, clipRect.Bottom);
m_renderTarget.PushAxisAlignedClip(rect, (AntialiasMode)antialiasMode);
}
