/// <summary>
/// Handles the DragDelta event of the Thumb control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="DragDeltaEventArgs"/> instance containing the event data.</param>
protected void Thumb_DragDelta(object sender, DragDeltaEventArgs e)
{
ResizeThumb resizeThumb = sender as ResizeThumb;
if (resizeThumb == null)
{
return;
}
Point position = PointToScreen(Mouse.GetPosition(this.currentWindow));
double deltaX = position.X - this.dragMouseStartPosition.X;
double deltaY = position.Y - this.dragMouseStartPosition.Y;
// Horizontal resize
if ((resizeThumb.ResizeGripDirection & ResizeGripDirection.Left) == ResizeGripDirection.Left)
{
SetWindowWidth(this.windowInitialSize.Width - deltaX);
this.currentWindow.Left = this.dragWindowStartPosition.X + deltaX;
}
else if ((resizeThumb.ResizeGripDirection & ResizeGripDirection.Right) == ResizeGripDirection.Right)
{
SetWindowWidth(this.windowInitialSize.Width + deltaX);
}
// Vertical resize
if ((resizeThumb.ResizeGripDirection & ResizeGripDirection.Top) == ResizeGripDirection.Top)
{
SetWindowHeight(this.windowInitialSize.Height + deltaY);
this.currentWindow.Top = this.dragWindowStartPosition.Y - deltaY;
}
else if ((resizeThumb.ResizeGripDirection & ResizeGripDirection.Bottom) == ResizeGripDirection.Bottom)
{
SetWindowHeight(this.windowInitialSize.Height + deltaY);
}
}
/// <summary>
/// Handles the DragStarted event of the Thumb control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="DragStartedEventArgs"/> instance containing the event data.</param>
protected void Thumb_DragStarted(object sender, DragStartedEventArgs e)
{
ResizeThumb resizeThumb = sender as ResizeThumb;
if (resizeThumb == null)
{
return;
}
// Save settings here that will be used later
this.dragMouseStartPosition = PointToScreen(Mouse.GetPosition(this.currentWindow));
this.dragWindowStartPosition = new Point(this.currentWindow.Left, this.currentWindow.Top);
this.windowInitialSize = new Size(this.currentWindow.Width, this.currentWindow.Height);
}
/// <summary>
/// Creates the thumb.
/// </summary>
/// <param name="direction">The direction.</param>
/// <param name="visualCursor">The visual cursor.</param>
/// <returns></returns>
protected ResizeThumb CreateThumb(ResizeGripDirection direction, Cursor visualCursor)
{
ResizeThumb thumb = new ResizeThumb
{
ResizeGripDirection = direction,
Cursor = visualCursor
};
thumb.DragStarted += Thumb_DragStarted;
thumb.DragDelta += Thumb_DragDelta;
this.visualChildren.Add(thumb);
return(thumb);
}
/// <summary>
/// Creates the thumb.
/// </summary>
/// <param name="direction">The direction.</param>
/// <param name="visualCursor">The visual cursor.</param>
/// <returns></returns>
protected ResizeThumb CreateThumb(ResizeGripDirection direction, Cursor visualCursor)
{
ResizeThumb thumb = new ResizeThumb
{
ResizeGripDirection = direction,
Cursor = visualCursor
};
thumb.DragStarted += Thumb_DragStarted;
thumb.DragDelta += Thumb_DragDelta;
this.visualChildren.Add(thumb);
return thumb;
}
