Beispiel #1
0
        public override void MouseDown(NSEvent aEvent)
        {
            if (iEnabled)
            {
                // get current mouse position
                iMouseDown = MouseLocation(aEvent.LocationInWindow);

                UpdateState();

                if (iMouseDown == EMouse.eLeft || iMouseDown == EMouse.eRight)
                {
                    // send notification that "rotation" has started
                    if (EventStart != null)
                    {
                        EventStart(this, EventArgs.Empty);
                    }

                    // do a step now and then set a timer for repeat
                    DoStep();

                    // use a fixed delay of 0.25 for the first delay
                    this.PerformSelectorWithObjectAfterDelay(ObjectiveCRuntime.Selector("timerUpdate"), null, 0.25);
                }
            }
        }
Beispiel #2
0
        public void TimerUpdate()
        {
            if (iEnabled && (iMouseDown == EMouse.eLeft || iMouseDown == EMouse.eRight))
            {
                DoStep();

                this.PerformSelectorWithObjectAfterDelay(ObjectiveCRuntime.Selector("timerUpdate"), null, iRepeatInterval);
            }
        }
Beispiel #3
0
        public override void DrawRect(NSRect aRect)
        {
            // calculate the number of tick intervals since the hourglass was shown
            NSDate dateNow      = NSDate.DateWithTimeIntervalSinceNow(0);
            double timeElapsed  = dateNow.TimeIntervalSinceReferenceDate - iTimeShown;
            int    numIntervals = (int)(timeElapsed / 0.06);

            // save graphics state for restoring later
            NSGraphicsContext context = NSGraphicsContext.CurrentContext;

            context.SaveGraphicsState();

            // apply transforms to rotate the foreground image
            NSImage bkgd = Properties.Resources.IconHourglass;
            NSImage frgd = Properties.Resources.IconHourglass2;

            NSAffineTransform xform1 = new NSAffineTransform();

            xform1.TranslateXByYBy(Bounds.Width * 0.5f, Bounds.Height * 0.5f);
            xform1.Concat();

            NSAffineTransform xform2 = new NSAffineTransform();

            xform2.RotateByDegrees(-45.0f * (numIntervals % 8));
            xform2.Concat();

            bool scale = Bounds.Width < frgd.Size.width || Bounds.Height < frgd.Size.height;
            NSAffineTransform xform3 = null;

            if (scale)
            {
                float scaleX = Bounds.Width / frgd.Size.width;
                float scaleY = Bounds.Height / frgd.Size.height;
                float ratio  = scaleX > scaleY ? scaleX : scaleY;
                xform3 = new NSAffineTransform();
                xform3.ScaleBy(ratio);
                xform3.Concat();
            }

            NSAffineTransform xform4 = new NSAffineTransform();

            xform4.TranslateXByYBy(-frgd.Size.width * 0.5f, -frgd.Size.height * 0.5f);
            xform4.Concat();


            // draw background and foreground
            bkgd.DrawAtPointFromRectOperationFraction(Bounds.origin, NSRect.NSZeroRect, NSCompositingOperation.NSCompositeSourceOver, 1.0f);
            frgd.DrawAtPointFromRectOperationFraction(Bounds.origin, NSRect.NSZeroRect, NSCompositingOperation.NSCompositeSourceOver, 1.0f);

            // clean up
            xform1.Release();
            xform2.Release();
            if (scale)
            {
                xform3.Release();
            }
            xform4.Release();
            context.RestoreGraphicsState();

            // schedule another timer event
            this.PerformSelectorWithObjectAfterDelay(ObjectiveCRuntime.Selector("timerUpdate"), null, 0.06);
        }
 public bool ValidateMenuItem(NSMenuItem aItem)
 {
     return(aItem.Action == ObjectiveCRuntime.Selector("deleteBookmark:") && ViewTable.ClickedRow >= 0);
 }