public static void ScaleGraphicsObject(PointF touchLocation,
PointF prevTouchLocation,
LayerInfo layerItem,
CanvasControlPoint controlPoint,
bool aspectRatioLocked,
ContentPackItem.ItemSize itemSize = ContentPackItem.ItemSize.Small)
{
RectangleF boundingBox = layerItem.GetBoundingBox ();
bool scaleUpOnly = boundingBox.Width < 10f || boundingBox.Height < 10f;
float sx = 0;
float sy = 0;
PointF fixedPoint = PointF.Empty;
switch (controlPoint) {
case CanvasControlPoint.TopLeft:
// Fixed point is bottom-right
fixedPoint = new PointF (boundingBox.Right, boundingBox.Bottom);
sx = boundingBox.Width / (boundingBox.Width + (touchLocation.X - prevTouchLocation.X));
sy = aspectRatioLocked ?
sx :
boundingBox.Height / (boundingBox.Height + (touchLocation.Y - prevTouchLocation.Y));
break;
case CanvasControlPoint.TopRight:
// Fixed point is bottom-left
fixedPoint = new PointF (boundingBox.Left, boundingBox.Bottom);
sx = boundingBox.Width / (boundingBox.Width - (touchLocation.X - prevTouchLocation.X));
sy = aspectRatioLocked ?
sx :
boundingBox.Height / (boundingBox.Height + (touchLocation.Y - prevTouchLocation.Y));
break;
case CanvasControlPoint.BottomRight:
// Fixed point is top-left
fixedPoint = boundingBox.Location;
sx = boundingBox.Width / (boundingBox.Width - (touchLocation.X - prevTouchLocation.X));
sy = aspectRatioLocked ?
sx :
boundingBox.Height / (boundingBox.Height - (touchLocation.Y - prevTouchLocation.Y));
break;
case CanvasControlPoint.BottomLeft:
// Fixed point is top-right
fixedPoint = new PointF (boundingBox.Right, boundingBox.Top);
sx = boundingBox.Width / (boundingBox.Width + (touchLocation.X - prevTouchLocation.X));
sy = aspectRatioLocked ?
sx :
boundingBox.Height / (boundingBox.Height - (touchLocation.Y - prevTouchLocation.Y));
break;
}//end switch
if (scaleUpOnly &&
sx < 1) {
sx = 1;
}//end if
if (scaleUpOnly &&
sy < 1) {
sy = 1;
}//end if
foreach (DrawingInfo eachDrawingInfo in layerItem.DrawingItems.Values) {
if (eachDrawingInfo.DrawingType == DrawingLayerType.Drawing) {
for (int i = 0; i < eachDrawingInfo.PathPoints.Count; i++) {
PointF point = eachDrawingInfo.PathPoints [i];
point.X = sx * (point.X + (-fixedPoint.X)) + fixedPoint.X;
point.Y = sy * (point.Y + (-fixedPoint.Y)) + fixedPoint.Y;
eachDrawingInfo.PathPoints [i] = point;
}//end for
} else if (eachDrawingInfo.DrawingType == DrawingLayerType.Image ||
eachDrawingInfo.DrawingType == DrawingLayerType.Comix ||
eachDrawingInfo.DrawingType == DrawingLayerType.Stamp ||
eachDrawingInfo.DrawingType == DrawingLayerType.Callout) {
RectangleF imgFrame = eachDrawingInfo.ImageFrame;
imgFrame.Width *= sx;
imgFrame.Height *= sy;
switch (controlPoint) {
case CanvasControlPoint.BottomLeft:
imgFrame.X += touchLocation.X - prevTouchLocation.X;
break;
case CanvasControlPoint.BottomRight:
//NOTE: Location is ok, when the only item in the layer is the image.
break;
case CanvasControlPoint.TopLeft:
imgFrame.X += touchLocation.X - prevTouchLocation.X;
imgFrame.Y += touchLocation.Y - prevTouchLocation.Y;
break;
case CanvasControlPoint.TopRight:
imgFrame.Y += touchLocation.Y - prevTouchLocation.Y;
break;
}//end switch
eachDrawingInfo.ImageFrame = imgFrame;
eachDrawingInfo.RotatedImageBox = eachDrawingInfo.ImageFrame.Rotate (eachDrawingInfo.RotationAngle);
if (eachDrawingInfo.DrawingType == DrawingLayerType.Callout)
{
eachDrawingInfo.CalloutTextRect = GetCalloutTextRect (eachDrawingInfo.ImageFrame, itemSize);
}//end if
}//end if else
}//end foreach
}
public static void RotateGraphicsObject(PointF touchLocation, LayerInfo layerItem, ref double prevRadAngle)
{
RectangleF boundingRect = layerItem.GetBoundingBox ();
// PointF center = new PointF (boundingRect.GetMidX (), boundingRect.GetMidY ());
PointF center = boundingRect.GetCenterOfRect();
double deltaX = touchLocation.X - center.X;
double deltaY = touchLocation.Y - center.Y;
double radAngle = Math.Atan2 (deltaY, deltaX);
double angleDiff = radAngle - prevRadAngle;
float angleCos = (float)Math.Cos (angleDiff);
float angleSin = (float)Math.Sin (angleDiff);
foreach (DrawingInfo eachDrawingInfo in layerItem.DrawingItems.Values) {
if (eachDrawingInfo.DrawingType == DrawingLayerType.Drawing) {
for (int i = 0; i < eachDrawingInfo.PathPoints.Count; i++) {
PointF point = eachDrawingInfo.PathPoints [i];
// Translate point
float tx = point.X - center.X;
float ty = point.Y - center.Y;
// Rotate it
float rx = (tx * angleCos) - (ty * angleSin);
float ry = (ty * angleCos) + (tx * angleSin);
// Translate back
rx += center.X;
ry += center.Y;
point.X = rx;
point.Y = ry;
eachDrawingInfo.PathPoints [i] = point;
}//end for
} else if (eachDrawingInfo.DrawingType == DrawingLayerType.Image ||
eachDrawingInfo.DrawingType == DrawingLayerType.Comix ||
eachDrawingInfo.DrawingType == DrawingLayerType.Stamp ||
eachDrawingInfo.DrawingType == DrawingLayerType.Callout) {
double degAngle = radAngle * RadToDeg;
RectangleF imgFrame = eachDrawingInfo.ImageFrame;
eachDrawingInfo.RotatedImageBox = imgFrame.Rotate (degAngle);
}//end if else if
eachDrawingInfo.RotationAngle = radAngle * RadToDeg;
}//end foreach
prevRadAngle = radAngle;
}
public static void RotateGraphicsObjectByAngle(double degAngle, LayerInfo layerItem)
{
RectangleF boundingBox = layerItem.GetBoundingBox ();
// PointF center = new PointF (boundingBox.GetMidX (), boundingBox.GetMidY ());
PointF center = boundingBox.GetCenterOfRect();
double radAngle = degAngle * DegToRad;
float angleCos = (float)Math.Cos (radAngle);
float angleSin = (float)Math.Sin (radAngle);
foreach (DrawingInfo eachDrawingInfo in layerItem.DrawingItems.Values) {
if (eachDrawingInfo.DrawingType == DrawingLayerType.Drawing) {
for (int i = 0; i < eachDrawingInfo.PathPoints.Count; i++) {
PointF point = eachDrawingInfo.PathPoints [i];
// Translate point
float tx = point.X - center.X;
float ty = point.Y - center.Y;
// Rotate it
float rx = (tx * angleCos) - (ty * angleSin);
float ry = (ty * angleCos) + (tx * angleSin);
// Translate back
rx += center.X;
ry += center.Y;
point.X = rx;
point.Y = ry;
eachDrawingInfo.PathPoints [i] = point;
}//end for
} else if (eachDrawingInfo.DrawingType == DrawingLayerType.Image ||
eachDrawingInfo.DrawingType == DrawingLayerType.Comix ||
eachDrawingInfo.DrawingType == DrawingLayerType.Stamp) {
RectangleF imgFrame = eachDrawingInfo.ImageFrame;
eachDrawingInfo.RotatedImageBox = imgFrame.Rotate (degAngle);
eachDrawingInfo.RotationAngle = degAngle;
} else if (eachDrawingInfo.DrawingType == DrawingLayerType.Callout) {
RectangleF imgFrame = eachDrawingInfo.ImageFrame;
eachDrawingInfo.RotatedImageBox = imgFrame.Rotate (degAngle);
eachDrawingInfo.RotationAngle = degAngle;
}//end if else if
}//end foreach
}
public static AnimationTypesTransitionEffectType CreateTransitionEffect(LayerInfo guideLayer, TransitionInfo transitionItem)
{
AnimationTypesTransitionEffectType toReturn = AnimationTypesTransitionEffectType.None;
RectangleF layerBox = guideLayer.GetBoundingBox ();
RectangleF trBox = new RectangleF (transitionItem.EndLocation, transitionItem.EndSize);
// Check for Move transition
if (layerBox.Location != transitionItem.EndLocation) {
toReturn = AnimationTypesTransitionEffectType.Move;
}//end if
// Check for Rotation transition
double guideRotationAngle = guideLayer.DrawingItems.Select (s => s.Value.RotationAngle).Max ();
if (guideRotationAngle != transitionItem.RotationAngle)
{
if (toReturn == AnimationTypesTransitionEffectType.None)
{
toReturn = AnimationTypesTransitionEffectType.Rotate;
} else
{
toReturn |= AnimationTypesTransitionEffectType.Rotate;
}//end if else
}//end if
// Check for Scale transition
if (layerBox.Size != transitionItem.EndSize)
{
if (toReturn == AnimationTypesTransitionEffectType.None)
{
toReturn = AnimationTypesTransitionEffectType.Scale;
} else
{
toReturn |= AnimationTypesTransitionEffectType.Scale;
}//end if else
}//end if
return toReturn;
}