/// <summary>
/// Scales the sketch to fit the current panel dimensions.
/// </summary>
public void ZoomToFit()
{
Rectangle inkRect = inkPic.Ink.GetBoundingBox();
// Move the Ink's origin to the upper top-left corner and update InkSketch
float moveX = -1.0F * inkRect.X + SketchPanelConstants.SketchPaddingInk;
float moveY = -1.0F * inkRect.Y + SketchPanelConstants.SketchPaddingInk;
inkPic.Ink.Strokes.Move(moveX, moveY);
inkRect.Offset((int)moveX, (int)moveY);
//foreach (Microsoft.Ink.Stroke iStroke in inkPic.Ink.Strokes)
//{
// inkSketch.TransformInkStroke(iStroke);
//}
// Scale the sketch to fill the InkImage
System.Drawing.Point rightBottom = new System.Drawing.Point(inkRect.Right, inkRect.Bottom);
using (Graphics g = inkPic.CreateGraphics())
{
inkPic.Renderer.InkSpaceToPixel(g, ref rightBottom);
}
System.Drawing.Point scalePt = new System.Drawing.Point(rightBottom.X - this.Left,
rightBottom.Y - this.Top);
// Scale the rendered strokes by the smallest (x or y) scaling factor
float xScale = (float)(this.Width - SketchPanelConstants.SketchPaddingScreen) / (float)scalePt.X;
float yScale = (float)(this.Height - SketchPanelConstants.SketchPaddingScreen) / (float)scalePt.Y;
float scale = xScale < yScale ? xScale : yScale;
inkPic.Renderer.Scale(scale, scale, true);
// Notify subscribers
InkTransformedEventHandler xformEvent = InkTransformed;
if (xformEvent != null)
{
xformEvent(new RectangleF(inkRect.X, inkRect.Y, inkRect.Width, inkRect.Height),
new RectangleF(moveX, moveY, scale, scale),
inkPic.Ink.Strokes, InkTransformEventType.ZoomTransform);
}
// Fix the InkPicture
resizeInkPicture();
inkPic.Refresh();
}
/// <summary>
/// Resizes InkPicture when necessary (for scrolling) and notifies subscribers
/// </summary>
protected void inkPic_SelectionMoved(object sender, InkOverlaySelectionMovedEventArgs e)
{
Rectangle oldBB = e.OldSelectionBoundingRect;
Rectangle newBB = inkPic.Selection.GetBoundingBox();
InkTransformedEventHandler xformEvent = InkTransformed;
if (xformEvent != null)
{
xformEvent(oldBB, newBB, inkPic.Selection, InkTransformEventType.SelectionToolTransform);
}
this.resizeInkPicture();
updateFocus();
}
/// <summary>
/// Unmagnifies the sketch by a preset amount and notifies listerners.
/// </summary>
public void ZoomOut()
{
Rectangle oldBB = inkPic.Ink.GetBoundingBox();
inkPic.Renderer.Scale(SketchPanelConstants.ZoomOutFactor, SketchPanelConstants.ZoomOutFactor, true);
InkTransformedEventHandler zoomEvent = InkTransformed;
if (zoomEvent != null)
{
zoomEvent(new RectangleF(oldBB.X, oldBB.Y, oldBB.Width, oldBB.Height),
new RectangleF(0.0F, 0.0F, SketchPanelConstants.ZoomOutFactor, SketchPanelConstants.ZoomOutFactor),
inkPic.Ink.Strokes, InkTransformEventType.ZoomTransform);
}
resizeInkPicture();
inkPic.Refresh();
}
