private void WidgetMouseWheelHandler(object sender, MouseWheelEventArgs e)
{
mouseScrollCumulation += e.Delta;
int jumps = mouseScrollCumulation / 120;
mouseScrollCumulation %= 120;
var p = e.GetPosition(Widget);
Context.InvokeUserCode(delegate {
for (int i = 0; i < jumps; i++)
{
var a = new MouseScrolledEventArgs(e.Timestamp, p.X, p.Y, ScrollDirection.Up);
eventSink.OnMouseScrolled(a);
if (a.Handled)
{
e.Handled = true;
}
}
for (int i = 0; i > jumps; i--)
{
var a = new MouseScrolledEventArgs(e.Timestamp, p.X, p.Y, ScrollDirection.Down);
eventSink.OnMouseScrolled(a);
if (a.Handled)
{
e.Handled = true;
}
}
});
}
/// <summary>
/// Creates the mouse wheel event arguments.
/// </summary>
/// <param name="args">The scroll event args.</param>
/// <returns>Mouse event arguments.</returns>
public static OxyMouseWheelEventArgs ToOxyMouseWheelEventArgs(this MouseScrolledEventArgs args)
{
return(new OxyMouseWheelEventArgs {
Delta = args.Direction == ScrollDirection.Down ? -120 : 120,
Position = new ScreenPoint(args.X, args.Y),
ModifierKeys = OxyModifierKeys.None
});
}
/// <summary>
/// Called when the mouse wheel is scrolled.
/// </summary>
/// <param name="args">An instance that contains the event data.</param>
protected override void OnMouseScrolled(MouseScrolledEventArgs args)
{
base.OnMouseScrolled(args);
if (args.Handled)
{
return;
}
args.Handled = ActualController.HandleMouseWheel(this,
args.ToOxyMouseWheelEventArgs());
}
protected override void OnMouseScrolled(MouseScrolledEventArgs args)
{
bool modified = false;
foreach (Interaction interaction in plotCanvas.interactions)
{
modified |= interaction.OnMouseScrolled(args, plotCanvas);
}
CheckForRedraw(modified);
}
void HandleScrollEvent(object o, Gtk.ScrollEventArgs args)
{
var direction = args.Event.Direction.ToXwtValue();
var a = new MouseScrolledEventArgs((long)args.Event.Time, args.Event.X, args.Event.Y, direction);
ApplicationContext.InvokeUserCode(delegate {
EventSink.OnMouseScrolled(a);
});
if (a.Handled)
{
args.RetVal = true;
}
}
private void KFileList_MouseScrolled(object sender, MouseScrolledEventArgs e)
{
switch (e.Direction)
{
case ScrollDirection.Up:
VScroll.Value--;
break;
case ScrollDirection.Down:
VScroll.Value++;
break;
}
VScroll_ValueChanged(null, null);
}
void HandleScrollEvent(object o, Gtk.ScrollEventArgs args)
{
var sc = ConvertToScreenCoordinates(new Point(0, 0));
var direction = Util.ConvertScrollDirection(args.Event.Direction);
var a = new MouseScrolledEventArgs((long)args.Event.Time, args.Event.XRoot - sc.X, args.Event.YRoot - sc.Y, direction);
Toolkit.Invoke(delegate {
EventSink.OnMouseScrolled(a);
});
if (a.Handled)
{
args.RetVal = true;
}
}
protected override void OnMouseScrolled(MouseScrolledEventArgs args)
{
var alloc = Bounds;
if ((args.Direction == ScrollDirection.Left ||
args.Direction == ScrollDirection.Right) &&
hScrollBar.Visible)
{
Hadjustment.AddValueClamped(args.Direction == ScrollDirection.Right ? 10 : -10);
}
if ((args.Direction == ScrollDirection.Up ||
args.Direction == ScrollDirection.Down) && vScrollBar.Visible)
{
Vadjustment.AddValueClamped(args.Direction == ScrollDirection.Down ? 10 : -10);
}
base.OnMouseScrolled(args);
}
/// <summary>
/// Mouse Scroll (wheel) method for PlotZoom interaction
/// </summary>
public override bool OnMouseScrolled(MouseScrolledEventArgs args, PlotCanvas pc)
{
double proportion = 0.1 * Sensitivity; // use initial zoom of 10%
double focusX = 0.5, focusY = 0.5; // default focus point
double direction = 1;
if (args.Direction == ScrollDirection.Down)
{
direction = -1;
}
// Zoom direction is +1 for Up/ZoomIn, or -1 for Down/ZoomOut
proportion *= -direction;
// delete previous focusPoint drawing
pc.Canvas.QueueDraw(focusRect);
Rectangle area = pc.PlotAreaBoundingBoxCache;
if (area.Contains(args.X, args.Y))
{
focus.X = args.X;
focus.Y = args.Y;
focusX = (double)(args.X - area.Left) / (double)area.Width;
focusY = (double)(area.Bottom - args.Y) / (double)area.Height;
}
// Zoom in/out for all defined axes
pc.CacheAxes();
pc.ZoomXAxes(proportion, focusX);
pc.ZoomYAxes(proportion, focusY);
double x = focus.X - 32;
double y = focus.Y - 32;
focusRect = new Rectangle(x, y, 64, 64);
// draw new focusRect
pc.Canvas.QueueDraw(focusRect);
return(true);
}
private void OnCanvasMouseScroll(object sender, MouseScrolledEventArgs e)
{
int modifier;
switch (e.Direction)
{
case ScrollDirection.Up:
modifier = -1;
break;
case ScrollDirection.Down:
modifier = 1;
break;
default:
modifier = 0;
break;
}
SetScrollbarValue(scrollbar.Value + scrollbar.StepIncrement * modifier);
}
void HeavyScroller_MouseScrolled(object sender, MouseScrolledEventArgs e)
{
switch (e.Direction)
{
case ScrollDirection.Down:
ScrollTo(OffsetY - 10);
return;
case ScrollDirection.Up:
ScrollTo(OffsetY + 10);
return;
case ScrollDirection.Right:
ScrollTo(null, OffsetX + 10);
return;
case ScrollDirection.Left:
ScrollTo(null, OffsetX - 10);
return;
}
}
void HandleMouseScrolled(object sender, MouseScrolledEventArgs e)
{
var msg = "Scrolled " + e.Direction;
int incrUpDown = 0;
if (e.Direction == ScrollDirection.Up)
{
incrUpDown++;
}
else if (e.Direction == ScrollDirection.Down)
{
incrUpDown--;
}
if (sender == la)
{
msg += " " + (laScrollCnt += incrUpDown);
resLa.Text = msg;
}
if (sender == te)
{
resTe.Text = msg;
}
if (sender == spn)
{
msg += " " + (spnScrollCnt += incrUpDown);
resSpn.Text = msg;
}
if (sender == btn)
{
msg += " " + (btnScrollCnt += incrUpDown);
resBtn.Text = msg;
}
if (sender == canvas)
{
msg += " " + (canvasScrollCnt += incrUpDown);
resCanvas.Text = msg;
}
Console.WriteLine("[" + sender + "] " + msg);
}
private void WidgetMouseWheelHandler(object sender, MouseWheelEventArgs e)
{
mouseScrollCumulation += e.Delta;
int jumps = mouseScrollCumulation / 120;
mouseScrollCumulation %= 120;
var p = e.GetPosition(Widget);
Context.InvokeUserCode (delegate {
for (int i = 0; i < jumps; i++) {
var a = new MouseScrolledEventArgs(e.Timestamp, p.X, p.Y, ScrollDirection.Up);
eventSink.OnMouseScrolled(a);
if (a.Handled)
e.Handled = true;
}
for (int i = 0; i > jumps; i--) {
var a = new MouseScrolledEventArgs(e.Timestamp, p.X, p.Y, ScrollDirection.Down);
eventSink.OnMouseScrolled(a);
if (a.Handled)
e.Handled = true;
}
});
}
public virtual bool OnMouseScrolled(MouseScrolledEventArgs args, PlotCanvas pc)
{
return(false);
}
protected override void OnMouseScrolled(MouseScrolledEventArgs args)
{
base.OnMouseScrolled(args);
List.CanvasMouseScrolled(args);
}