public bool OnMouseLeftDown(Point mouse, Point imageLocation, float imageZoom)
{
if (metadata == null || screenToolManager == null)
{
return(false);
}
// At this point we must know the current timestamp and metadata should be valid.
// TODO: Handle magnifier.
// TODO: see if this could handle whole image manipulation as well, but at the moment the resizers are stored in the viewport.
bool handled = false;
ImageToViewportTransformer transformer = new ImageToViewportTransformer(imageLocation, imageZoom);
PointF imagePoint = transformer.Untransform(mouse);
metadata.AllDrawingTextToNormalMode();
if (screenToolManager.IsUsingHandTool)
{
// TODO: Change cursor.
handled = screenToolManager.HandTool.OnMouseDown(metadata, fixedKeyframe, imagePoint, fixedTimestamp, false);
}
else
{
handled = true;
CreateNewDrawing(imagePoint, transformer);
}
return(handled);
}
public bool OnMouseLeftMove(Point mouse, Keys modifiers, Point imageLocation, float imageZoom)
{
if (metadata == null || screenToolManager == null)
{
return(false);
}
bool handled = false;
ImageToViewportTransformer transformer = new ImageToViewportTransformer(imageLocation, imageZoom);
PointF imagePoint = transformer.Untransform(mouse);
if (screenToolManager.IsUsingHandTool)
{
// TODO: handle magnifier.
handled = screenToolManager.HandTool.OnMouseMove(metadata, imagePoint, Point.Empty, modifiers);
}
else
{
// Setting second point of a drawing.
IInitializable drawing = metadata.HitDrawing as IInitializable;
if (drawing != null)
{
drawing.InitializeMove(imagePoint, modifiers);
}
}
return(handled);
}
public bool HitTest(Point mouse, Point imageLocation, float imageZoom)
{
// Note: at the moment this method does not support extra drawings.
if (metadata == null)
{
return(false);
}
ImageToViewportTransformer transformer = new ImageToViewportTransformer(imageLocation, imageZoom);
PointF imagePoint = transformer.Untransform(mouse);
int keyframeIndex = 0;
return(metadata.IsOnDrawing(keyframeIndex, imagePoint, fixedTimestamp));
}
public void OnMouseUp(Bitmap bitmap, Point mouse, Keys modifiers, Point imageLocation, float imageZoom)
{
// TODO: Handle magnifier.
// TODO: Memorize the action we just finished to enable undo.
// TODO: keep tool or change tool.
// m_ActiveTool = m_ActiveTool.KeepTool ? m_ActiveTool : m_PointerTool;
if (screenToolManager.IsUsingHandTool)
{
screenToolManager.HandTool.OnMouseUp();
metadata.AllDrawingTextToNormalMode();
metadata.UpdateTrackPoint(bitmap);
}
ImageToViewportTransformer transformer = new ImageToViewportTransformer(imageLocation, imageZoom);
PointF imagePoint = transformer.Untransform(mouse);
metadata.InitializeCommit(null, imagePoint);
screenToolManager.AfterToolUse();
}