/// <summary>
/// Animates the camera's view to keep the focus node on the screen and at 100
/// percent scale with minimal view movement.
/// </summary>
/// <param name="aCamera">The camera whose view will be animated.</param>
/// <param name="aFocusNode">The focus node to animate to.</param>
/// <param name="duration">The length of the animation.</param>
/// <returns>
/// The activity that animates the camera's view to the focus node.
/// </returns>
public virtual PActivity DirectCameraViewToFocus(PCamera aCamera, PNode aFocusNode, int duration)
{
PMatrix originalViewMatrix = aCamera.ViewMatrix;
// Scale the canvas to include
SizeF s = new SizeF(1, 0);
s = focusNode.GlobalToLocal(s);
float scaleFactor = s.Width / aCamera.ViewScale;
PointF scalePoint = PUtil.CenterOfRectangle(focusNode.GlobalFullBounds);
if (scaleFactor != 1)
{
aCamera.ScaleViewBy(scaleFactor, scalePoint.X, scalePoint.Y);
}
// Pan the canvas to include the view bounds with minimal canvas
// movement.
aCamera.AnimateViewToPanToBounds(focusNode.GlobalFullBounds, 0);
// Get rid of any white space. The canvas may be panned and
// zoomed in to do this. But make sure not stay constrained by max
// magnification.
//FillViewWhiteSpace(aCamera);
PMatrix resultingMatrix = aCamera.ViewMatrix;
aCamera.ViewMatrix = originalViewMatrix;
// Animate the canvas so that it ends up with the given
// view transform.
return(AnimateCameraViewMatrixTo(aCamera, resultingMatrix, duration));
}
public override void Initialize()
{
PCanvas c = Canvas;
PLayer l = c.Layer;
PCamera cam = c.Camera;
cam.ScaleViewBy(2.0f);
PPath path = PPath.CreateRectangle(0, 0, 100, 100);
l.AddChild(path);
path.TranslateBy(100, 10);
path.ScaleBy(0.2f);
cam.AnimateViewToCenterBounds(path.GlobalFullBounds, true, 1000);
}
/// <summary>
/// Animates the camera's view to keep the control node on the screen and at 100
/// percent scale with minimal view movement.
/// </summary>
/// <param name="aCamera">The camera whose view will be animated.</param>
/// <param name="aControlNode">The control node to animate to.</param>
/// <param name="path">The pick path through which the control node was picked.</param>
/// <param name="duration">The length of the animation.</param>
/// <returns>
/// The activity that animates the camera's view to the control node.
/// </returns>
public virtual PActivity DirectCameraViewToControl(PCamera aCamera, PControl aControlNode, PPickPath path, int duration)
{
Matrix originalViewMatrix = aCamera.ViewMatrix;
// Scale the canvas to include
SizeFx s = new SizeFx(1, 0);
s = aControlNode.GlobalToLocal(s);
float scaleFactor = s.Width / aCamera.ViewScale;
PointFx scalePoint = PUtil.CenterOfRectangle(aControlNode.GlobalFullBounds);
if (scaleFactor != 1)
{
aCamera.ScaleViewBy(scaleFactor, scalePoint.X, scalePoint.Y);
}
// Pan the canvas to include the view bounds with minimal canvas
// movement.
aCamera.AnimateViewToPanToBounds(aControlNode.GlobalFullBounds, 0);
// Get rid of any white space. The canvas may be panned and
// zoomed in to do this. But make sure not stay constrained by max
// magnification.
//FillViewWhiteSpace(aCamera);
Matrix resultingMatrix = aCamera.ViewMatrix;
aCamera.ViewMatrix = originalViewMatrix;
PControl controlNode = (PControl)aControlNode;
// Animate the canvas so that it ends up with the given
// view transform.
PActivity animateCameraViewActivity = AnimateCameraViewMatrixTo(aCamera, resultingMatrix, duration);
aCamera.Root.WaitForActivities();
Matrix pathTransform = path.GetPathTransformTo(controlNode);
PointFx point = new PointFx(controlNode.X, controlNode.Y);
PointFx pf = MatrixExtensions.Transform(pathTransform, point);
controlNode.ControlLocation = new System.Drawing.Point((int)pf.X, (int)pf.Y);
controlNode.CurrentCanvas = path.TopCamera.Canvas;
controlNode.Editing = true;
return(animateCameraViewActivity);
}
private void scaleView(float scaleDelta, PointF p)
{
float currentScale = camera.ViewScale;
float newScale = currentScale * scaleDelta;
if (newScale < MIN_SCALE)
{
camera.ViewScale = MIN_SCALE;
return;
}
if ((MAX_SCALE > 0) && (newScale > MAX_SCALE))
{
camera.ViewScale = MAX_SCALE;
return;
}
camera.ScaleViewBy(scaleDelta, p.X, p.Y);
}
public void OnMouseWheel(object o, PInputEventArgs ea)
{
float currentScale = camera.ViewScale;
float scaleDelta = (1.0f + (0.001f * ea.WheelDelta));
float newScale = currentScale * scaleDelta;
if (newScale < MIN_SCALE)
{
camera.ViewScale = MIN_SCALE;
return;
}
if ((MAX_SCALE > 0) && (newScale > MAX_SCALE))
{
camera.ViewScale = MAX_SCALE;
return;
}
PointF pos = ea.Position;
camera.ScaleViewBy(scaleDelta, pos.X, pos.Y);
}
public override void Initialize()
{
PLayer l = new PLayer();
PPath n = PPath.CreateEllipse(0, 0, 100, 80);
n.Brush = Brushes.Red;
n.Pen = null;
PBoundsHandle.AddBoundsHandlesTo(n);
l.AddChild(n);
n.TranslateBy(200, 200);
PCamera c = new PCamera();
c.SetBounds(0, 0, 100, 80);
c.ScaleViewBy(0.1f);
c.AddLayer(l);
PBoundsHandle.AddBoundsHandlesTo(c);
c.Brush = Brushes.Yellow;
Canvas.Layer.AddChild(l);
Canvas.Layer.AddChild(c);
}
/// <summary>
/// Overridden. See <see cref="PDragSequenceEventHandler.OnDragActivityStep">
/// PDragSequenceEventHandler.OnDragActivityStep</see>.
/// </summary>
protected override void OnDragActivityStep(object sender, PInputEventArgs e)
{
base.OnDragActivityStep(sender, e);
PCamera camera = e.Camera;
float dx = e.CanvasPosition.X - MousePressedCanvasPoint.X;
float scaleDelta = (1.0f + (0.001f * dx));
float currentScale = camera.ViewScale;
float newScale = currentScale * scaleDelta;
if (newScale < minScale)
{
scaleDelta = minScale / currentScale;
}
if ((maxScale > 0) && (newScale > maxScale))
{
scaleDelta = maxScale / currentScale;
}
camera.ScaleViewBy(scaleDelta, viewZoomPoint.X, viewZoomPoint.Y);
}
public override void Initialize()
{
PLayer l = new PLayer();
PEllipse n = new PEllipse();
n.SetBounds(0, 0, 100, 80);
n.Brush = new SolidBrush(Color.Red);
PBoundsHandle.AddBoundsHandlesTo(n);
l.AddChild(n);
n.TranslateBy(100, 100);
PCamera c = new PCamera();
c.SetBounds(0, 0, 100, 80);
c.ScaleViewBy(0.1f);
c.AddLayer(l);
PBoundsHandle.AddBoundsHandlesTo(c);
c.Brush = new SolidBrush(Color.Yellow);
Canvas.Layer.AddChild(l);
Canvas.Layer.AddChild(c);
base.Initialize();
}
public override void Initialize()
{
// Add a standard pnode to the scene graph.
PNode aNode = new PNode();
aNode.SetBounds(0, 70, 15, 15);
aNode.Brush = Brushes.Blue;
Canvas.Layer.AddChild(aNode);
// Create a button.
Button button = new Button();
button.Text = "Hello";
button.Bounds = new Rectangle(10, 10, 10, 10);
button.BackColor = SystemColors.Control;
// Wrap the button in a PControl and
// add it to the scene graph.
PControl cn = new PControl(button);
Canvas.Layer.AddChild(cn);
cn.SetBounds(20, 20, 70, 70);
// Create another button.
Button otherButton = new Button();
otherButton.Text = "123";
otherButton.Bounds = new Rectangle(0, 0, 15, 45);
otherButton.BackColor = SystemColors.Control;
// Wrap the second button in another PControl and
// add it to the scene graph.
PControl cn2 = new PControl(otherButton, PCanvas.CURRENT_PCANVAS);
cn2.ScaleBy(1.1f);
Canvas.Layer.AddChild(cn2);
// Create a tabcontrol
TabControl tabControl = new TabControl();
tabControl.Size = new Size(60, 60);
tabControl.TabPages.Add(new TabPage("P1"));
tabControl.TabPages.Add(new TabPage("P2"));
// Wrap the tabcontrol in a PControl and
// add it the scene graph.
PControl cn3 = new PControl(tabControl);
cn3.ScaleBy(1.2f);
cn3.TranslateBy(0, 100);
Canvas.Layer.AddChild(cn3);
// Create an internal camera that looks at the main layer.
PCamera internalCamera = new PCamera();
internalCamera.TranslateViewBy(145, 145);
internalCamera.ScaleViewBy(.5f);
internalCamera.SetBounds(130, 130, 200, 200);
internalCamera.Brush = Brushes.Yellow;
internalCamera.AddLayer(Canvas.Layer);
Canvas.Camera.AddChild(internalCamera);
Canvas.Layer.ScaleBy(1.3f);
// Create another canvas.
PCamera otherCamera = new PCamera();
otherCamera.AddLayer(Canvas.Layer);
Canvas.Root.AddChild(otherCamera);
PCanvas other = new PCanvas();
other.Camera = otherCamera;
PForm result = new PForm(false, other);
result.StartPosition = FormStartPosition.Manual;
result.Location = new Point(this.Location.X + this.Width, this.Location.Y);
result.Size = this.Size;
result.Show();
// Add the control event handler to both canvas' cameras.
Canvas.Camera.AddInputEventListener(new PControlEventHandler());
other.Camera.AddInputEventListener(new PControlEventHandler());
}
