public void Expand()
{
if (State != CollapsedState.Expanded)
{
state = CollapsedState.Expanded;
workingArea.Visible = true;
Height = storedHeight;
}
}
public void Collapse()
{
if (State != CollapsedState.Collapsed)
{
state = CollapsedState.Collapsed;
WorkingArea.Visible = false;
storedHeight = Height;
Height = HeaderHeight;
}
}
internal void StartAnimation(CollapsedState DestinationState)
{
if(pnl.Animating)
return;
mAnimationStepNum = 0;
InitAnimationParameteres(DestinationState);
mAnimationTimer.Start();
}
public SymbolVisual(Point center, CollapsedState collapsedState)
{
this.center = center;
this.collapsedState = collapsedState;
}
public CollapsiblePanel()
{
InitializeComponent();
State = CollapsedState.Expanded;
HeaderHeight = 30;
}
private void InitAnimationParameteres(CollapsedState destinationState)
{
pnl.mAnimating = true;
pnl.FullExpandedSizeChanged += new EventHandler(pnl_FullExpandedSizeChanged);
pnl.PartialExpandedSizeChanged += new EventHandler(pnl_PartialExpandedSizeChanged);
pnl.CollapsedSizeChanged += new EventHandler(pnl_CollapsedSizeChanged);
pnl.SuspendLayout();
mDestinationState = destinationState;
// Set the image that the controll will paint as its background during animation
// and set initial and final sizes of the animation
switch(pnl.CollapsedState)
{
case CollapsedState.Collapsed:
if(destinationState == CollapsedState.PartialExpanded)
{
// From collapsed to partial
pnl.AnimationImage = pnl.GetCollapsedImage(ImageSize.Partial);
mSlideStartSize = pnl.CollapsedSize;
mSlideEndSize = pnl.PartialExpandedSize;
}
else
{
// From collapsed to full
pnl.AnimationImage = pnl.GetCollapsedImage(ImageSize.Full);
mSlideStartSize = pnl.CollapsedSize;
mSlideEndSize = pnl.FullExpandedSize;
}
break;
case CollapsedState.PartialExpanded:
if(destinationState == CollapsedState.FullExpanded)
{
// From partial to full
pnl.AnimationImage = pnl.GetCollapsedImage(ImageSize.Full);
mSlideStartSize = pnl.PartialExpandedSize;
mSlideEndSize = pnl.FullExpandedSize;
}
else
{
// From partial to collapsed
pnl.AnimationImage = pnl.GetExpandedImage();
mSlideStartSize = pnl.PartialExpandedSize;
mSlideEndSize = pnl.CollapsedSize;
}
break;
case CollapsedState.FullExpanded:
pnl.AnimationImage = pnl.GetExpandedImage();
if(destinationState == CollapsedState.PartialExpanded)
{
// From full to partial
mSlideStartSize = pnl.FullExpandedSize;
mSlideEndSize = pnl.PartialExpandedSize;
}
else
{
// From full to collapsed
mSlideStartSize = pnl.FullExpandedSize;
mSlideEndSize = pnl.CollapsedSize;
}
break;
}
}