private void resizerControl_SizerModeChanged(SizerHandle handle, SizerMode mode)
{
SuspendLayout();
if (mode == SizerMode.Normal)
{
//trim the padding of the behavior for drawing the sizers
OnResizeEnd(_resizerControl.SizerSize);
_dragBufferControl.Visible = false;
SynchronizeResizerWithElement();
}
else
{
//notify subclasses that a resize action has been initiated
bool preserveAspectRatio = handle == SizerHandle.TopLeft ||
handle == SizerHandle.TopRight ||
handle == SizerHandle.BottomLeft ||
handle == SizerHandle.BottomRight;
OnResizeStart(ElementRectangle.Size, preserveAspectRatio);
//expand the padding of the behavior region to the whole body so that the resizer
//can have the freedom to paint anywhere in the document. This is important
//since the resizer handles may be placed well outside of the element bounds depending
//on which sizer handle was grabbed and how the element is anchored.
Rectangle rect = CalculateElementRectangleRelativeToBody(HTMLElement);
IHTMLElement body = (HTMLElement.document as IHTMLDocument2).body;
_dragBufferControl.VirtualSize = new Size(body.offsetWidth, body.offsetHeight);
_dragBufferControl.VirtualLocation = new Point(-rect.X, -rect.Y);
_dragBufferControl.Visible = true;
}
ResumeLayout();
PerformLayout();
Invalidate();
}
protected virtual void OnSizerModeChanged(SizerHandle handle, SizerMode mode)
{
bool resizeStarted = _mode == SizerMode.Normal && mode == SizerMode.Resizing;
ActiveHandle = handle;
_mode = mode;
if (resizeStarted)
{
OnResizeStart();
}
if (SizerModeChanged != null)
{
SizerModeChanged(handle, mode);
}
}
protected virtual void OnSizerModeChanged(SizerHandle handle, SizerMode mode)
{
bool resizeStarted = _mode == SizerMode.Normal && mode == SizerMode.Resizing;
ActiveHandle = handle;
_mode = mode;
if (resizeStarted)
OnResizeStart();
if (SizerModeChanged != null)
SizerModeChanged(handle, mode);
}
private void resizerControl_SizerModeChanged(SizerHandle handle, SizerMode mode)
{
SuspendLayout();
if (mode == SizerMode.Normal)
{
//trim the padding of the behavior for drawing the sizers
OnResizeEnd(_resizerControl.SizerSize);
_dragBufferControl.Visible = false;
SynchronizeResizerWithElement();
}
else
{
//notify subclasses that a resize action has been initiated
bool preserveAspectRatio = handle == SizerHandle.TopLeft ||
handle == SizerHandle.TopRight ||
handle == SizerHandle.BottomLeft ||
handle == SizerHandle.BottomRight;
OnResizeStart(ElementRectangle.Size, preserveAspectRatio);
//expand the padding of the behavior region to the whole body so that the resizer
//can have the freedom to paint anywhere in the document. This is important
//since the resizer handles may be placed well outside of the element bounds depending
//on which sizer handle was grabbed and how the element is anchored.
Rectangle rect = CalculateElementRectangleRelativeToBody(HTMLElement);
IHTMLElement body = (HTMLElement.document as IHTMLDocument2).body;
_dragBufferControl.VirtualSize = new Size(body.offsetWidth, body.offsetHeight);
_dragBufferControl.VirtualLocation = new Point(-rect.X, -rect.Y);
_dragBufferControl.Visible = true;
}
ResumeLayout();
PerformLayout();
Invalidate();
}