public void Manipulation_Begin_WithAnotherDevice()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettingsHelper.Manipulations
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(25, 25, id: 1);
sut.ProcessDownEvent(25, 25, id: 2, device: PointerDeviceType.Pen);
result.ShouldBe(
v => v.Starting()
);
}
public void Manipulation_Begin_MultiPointer()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettingsHelper.Manipulations
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(25, 25, id: 1);
sut.ProcessDownEvent(25, 25, id: 2);
result.ShouldBe(
v => v.Starting(),
v => v.Started()
);
}
public void Manipulation_Begin()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettingsHelper.Manipulations
};
var result = new ManipulationRecorder(sut);
var step = GestureRecognizer.MinManipulationDeltaTranslateX;
sut.ProcessDownEvent(25, 25);
sut.ProcessMoveEvent(25 + 1, 25); // Ignored
sut.ProcessMoveEvent(25 + step, 25);
result.ShouldBe(
v => v.Starting(),
v => v.Started().At(25 + step, 25).WithCumulative(step, 0)
);
}
public void Manipulation_Translate_MultiTouch_Negative()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettings.ManipulationTranslateX | GestureSettings.ManipulationTranslateY
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(0, 0, id: 1);
sut.ProcessDownEvent(200, 200, id: 2);
sut.ProcessMoveEvent(50, 50, id: 2);
result.ShouldBe(
v => v.Starting(),
v => v.Started().At(100, 100).WithEmptyCumulative(),
v => v.Delta().At(25, 25).WithDelta(tX: -75, tY: -75).WithCumulative(tX: -75, tY: -75)
);
}
public void Manipulation_End()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettingsHelper.Manipulations
};
var result = new ManipulationRecorder(sut);
var step = GestureRecognizer.Manipulation.StartTouch.TranslateX + 1;
sut.ProcessDownEvent(25, 25);
sut.ProcessMoveEvent(25 + step, 25);
sut.ProcessUpEvent(25 + step + 1, 25);
result.ShouldBe(
v => v.Starting(),
v => v.Started().At(25, 25).WithEmptyCumulative(),
v => v.Delta().At(25 + step, 25).WithDelta(step, 0).WithCumulative(step, 0),
v => v.End().At(25 + step + 1, 25).WithCumulative(step + 1, 0)
);
}
public void Manipulation_ScaleOnly_Negative()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettings.ManipulationScale
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(25, 25, id: 1);
sut.ProcessDownEvent(150, 25, id: 2);
sut.ProcessMoveEvent(100, 25, id: 2);
sut.ProcessMoveEvent(75, 25, id: 2);
result.ShouldBe(
v => v.Starting(),
v => v.Started().WithCumulative(scale: 1),
v => v.Delta().WithDelta(scale: .6F, exp: -50).WithCumulative(scale: .6F, exp: -50),
v => v.Delta().WithDelta(scale: 2F / 3F, exp: -25).WithCumulative(scale: .4F, exp: -75)
);
}
public void Manipulation_RotateOnly_AntiTrigonometric_InForthQuadrant()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettings.ManipulationRotate
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(25, 25, id: 1);
sut.ProcessDownEvent(50, 25, id: 2); // Angle = 0
sut.ProcessMoveEvent(50, 50, id: 2); // Angle = -Pi/4
sut.ProcessMoveEvent(25, 50, id: 2); // Angle = -Pi/2
result.ShouldBe(
v => v.Starting(),
v => v.Started().WithCumulative(angle: 0),
v => v.Delta().WithDelta(angle: 45).WithCumulative(angle: 45),
v => v.Delta().WithDelta(angle: 45).WithCumulative(angle: 90)
);
}
public void Manipulation_TranslateYOnly_Negative()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettings.ManipulationTranslateY
};
var result = new ManipulationRecorder(sut);
var stepX = GestureRecognizer.MinManipulationDeltaTranslateX + 1;
var stepY = GestureRecognizer.MinManipulationDeltaTranslateY + 1;
sut.ProcessDownEvent(25, 25);
sut.ProcessMoveEvent(25 - stepX, 25); // Invalid move that should NOT cause the started
sut.ProcessMoveEvent(25 - stepX, 25 - stepY); // Valid move that should cause a started ... but without Y
sut.ProcessMoveEvent(25 - stepX * 2, 25 - stepY); // Invalid move that should also be muted
sut.ProcessMoveEvent(25 - stepX * 2, 25 - stepY * 2); // Invalid move that should also be muted
sut.ProcessUpEvent(25 - stepX * 2 - 1, 25 - stepY * 2 - 1);
result.ShouldBe(
v => v.Starting(),
v => v.Started().At(25 - stepX, 25 - stepY).WithCumulative(0, -stepY),
v => v.Delta().At(25 - stepX * 2, 25 - stepY * 2).WithDelta(0, -stepY).WithCumulative(0, -stepY * 2),
v => v.End().At(25 - stepX * 2 - 1, 25 - stepY * 2 - 1).WithCumulative(0, -stepX * 2 - 1)
);
}
public void Manipulation_Mixed()
{
var sut = new GestureRecognizer {
GestureSettings = GestureSettingsHelper.Manipulations
};
var result = new ManipulationRecorder(sut);
sut.ProcessDownEvent(50, 50, id: 1); // 1.
sut.ProcessDownEvent(50, 200, id: 2); // 2.
sut.ProcessMoveEvent(200, 200, id: 2); // 3.
sut.ProcessMoveEvent(50, 200, id: 1); // 4.
sut.ProcessMoveEvent(200, 50, id: 2); // 5.
sut.ProcessMoveEvent(200, 200, id: 1); // 6.
sut.ProcessMoveEvent(50, 50, id: 2); // 7.
sut.ProcessMoveEvent(200, 50, id: 1); // 8.
sut.ProcessMoveEvent(50, 200, id: 2); // 9.
sut.ProcessMoveEvent(50, 50, id: 1); // 10.
// At same point (0 proof ?)
sut.ProcessMoveEvent(50, 50, id: 2); // 11.
var s = (float)Math.Sqrt(2);
var e = (float)((Math.Sqrt(2) - 1) * 150);
result.ShouldBe(
v => v.Starting(), // 1.
// 2.
v => v.Started()
.At(50, 125)
.WithCumulative(),
// 3.
v => v.Delta()
.At(125, 125)
.WithDelta(tX: 75, tY: 0, angle: 315, scale: s, exp: e)
.WithCumulative(tX: 75, tY: 0, angle: 315, scale: s, exp: e),
// 4.
v => v.Delta()
.At(125, 200)
.WithDelta(tX: 0, tY: 75, angle: 315, scale: 1 / s, exp: -e)
.WithCumulative(tX: 75, tY: 75, angle: 270, scale: 1, exp: 0),
// 5.
v => v.Delta()
.At(125, 125)
.WithDelta(tX: 0, tY: -75, angle: 315, scale: s, exp: e)
.WithCumulative(tX: 75, tY: 0, angle: 225, scale: s, exp: e),
// 6.
v => v.Delta()
.At(200, 125)
.WithDelta(tX: 75, tY: 0, angle: 315, scale: 1 / s, exp: -e)
.WithCumulative(tX: 150, tY: 0, angle: 180, scale: 1, exp: 0),
// 7.
v => v.Delta()
.At(125, 125)
.WithDelta(tX: -75, tY: 0, angle: 315, scale: s, exp: e)
.WithCumulative(tX: 75, tY: 0, angle: 135, scale: s, exp: e),
// 8.
v => v.Delta()
.At(125, 50)
.WithDelta(tX: 0, tY: -75, angle: 315, scale: 1 / s, exp: -e)
.WithCumulative(tX: 75, tY: -75, angle: 90, scale: 1, exp: 0),
// 9.
v => v.Delta()
.At(125, 125)
.WithDelta(tX: 0, tY: 75, angle: 315, scale: s, exp: e)
.WithCumulative(tX: 75, tY: 0, angle: 45, scale: s, exp: e),
// 10.
v => v.Delta()
.At(50, 125)
.WithDelta(tX: -75, tY: 0, angle: 315, scale: 1 / s, exp: -e)
.WithCumulative(tX: 0, tY: 0, angle: 0, scale: 1, exp: 0),
// 11.
v => v.Delta()
.At(50, 50)
.WithDelta(tX: 0, tY: -75, angle: 90 /* ??? */, scale: 0, exp: -150F)
.WithCumulative(tX: 0, tY: -75, angle: 90 /* ??? */, scale: 0, exp: -150F)
);
}
