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();
        }
Ejemplo n.º 2
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        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);
            }
        }
Ejemplo n.º 3
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        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();
        }