public KChartSKControl() : base()
{
chartControl = this;
chartControl.Location = new Point(0, 0);
Label toolTip = WinGui.winGui.label_Tooltip;
toolTip.Visible = false;
toolTip.BackColor = WinControls.cPanelButtonDeselected;
toolTip.Font = WinGui.winGui.GetFont(8, true);
toolTip.MouseEnter +=
(object sender, EventArgs e) => { UpdateTooltip(new Point(0, 0), ""); };
/* Initialize Interface KTouchClient with a locally-sourced KTouchClientData closure */
touch = new KTouchClientData(
invalidateSurface: () => { InvalidateAndUpdate(); },
setManualPinchPan: (Swipe pinchPan) => { KChartHandler.SetManualPinchPan(pinchPan); }
);
touch.onTouchSwipeOrMouseDrag = OnMouseDrag;
touch.onTouchSwipeOrMouseDragEnd = OnMouseDragEnd;
touch.onTouchDoubletapOrMouseClick = OnMouseClick;
touch.onTouchPinchOrMouseZoom = OnMouseZoom;
touch.lastPinchPan = Swipe.Id();
touch.incrementalScaling = Swipe.Id();
touch.incrementalTranslation = Swipe.Id();
KChartHandler.RegisterKTouchClientData(touch);
}
private void OnMouseClick(SKPoint p)
{
touch.lastPinchPan = Swipe.Id();
touch.incrementalScaling = Swipe.Id();
touch.incrementalTranslation = Swipe.Id();
touch.setManualPinchPan?.Invoke(touch.lastPinchPan);
touch.invalidateSurface();
}
private void OnMouseDragEnd(SKPoint from, SKPoint to)
{
if (touch.swiping)
{
touch.swiping = false;
touch.lastPinchPan = touch.lastPinchPan * touch.incrementalScaling * touch.incrementalTranslation;
touch.incrementalScaling = Swipe.Id();
touch.incrementalTranslation = Swipe.Id();
touch.setManualPinchPan?.Invoke(touch.lastPinchPan);
touch.invalidateSurface();
}
}
private KTouchClientData touch = null; // data for pan&zoom by mouse drag and scroll
private void OnLoad()
{
this.WantsLayer = true;
this.LayerContentsRedrawPolicy = NSViewLayerContentsRedrawPolicy.OnSetNeedsDisplay;
chartControl = this;
/* Initialize Interface KTouchClient with a locally-sourced KTouchClientData closure */
touch = new KTouchClientData(
invalidateSurface: () => { Invalidate(); },
setManualPinchPan: (Swipe pinchPan) => { KChartHandler.SetManualPinchPan(pinchPan); }
);
touch.onTouchSwipeOrMouseDrag = OnMouseDrag;
touch.onTouchSwipeOrMouseDragEnd = OnMouseDragEnd;
touch.onTouchDoubletapOrMouseClick = OnMouseClick;
touch.onTouchPinchOrMouseZoom = OnMouseZoom;
touch.lastPinchPan = Swipe.Id();
touch.incrementalScaling = Swipe.Id();
touch.incrementalTranslation = Swipe.Id();
KChartHandler.RegisterKTouchClientData(touch);
Tracking();
}