/// <summary>
/// Raises the NeedPaint event.
/// </summary>
/// <param name="sender">Source of the event.</param>
/// <param name="e">An NeedLayoutEventArgs containing event data.</param>
protected virtual void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
if (_needPaint != null)
{
_needPaint(this, e);
}
}
private void NeedPaint(NeedLayoutEventArgs e)
{
if (e.NeedLayout)
{
PerformLayout();
}
Invalidate();
}
private void OnGroupPanelPaint(object sender, NeedLayoutEventArgs e)
{
// If the child panel is layout out but not because we are, then it must be
// laying out because a child has changed visibility/size/etc. If we are an
// AutoSize control then we need to ensure we layout as well to change size.
if (e.NeedLayout && !_layingOut && AutoSize)
{
PerformNeedPaint(true);
}
}
/// <summary>
/// Processes a notification from palette storage of a paint and optional layout required.
/// </summary>
/// <param name="sender">Source of notification.</param>
/// <param name="e">An NeedLayoutEventArgs containing event data.</param>
protected override void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
if (IsInitialized || !e.NeedLayout)
{
// As the contained group panel is using our palette storage
// we also need to pass on any paint request to it as well
_panel.PerformNeedPaint(e.NeedLayout);
}
else
{
ForceControlLayout();
}
base.OnNeedPaint(sender, e);
}
private void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
Debug.Assert(e != null);
// Validate incoming reference
if (e == null)
{
throw new ArgumentNullException("e");
}
// Pass request onto the displaying control if we have one
if (_contextMenu != null)
{
_contextMenu.PerformNeedPaint(e.NeedLayout);
}
}
/// <summary>
/// Processes a notification from palette storage of a paint and optional layout required.
/// </summary>
/// <param name="sender">Source of notification.</param>
/// <param name="e">An NeedLayoutEventArgs containing event data.</param>
protected virtual void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
Debug.Assert(e != null);
// Validate incoming reference
if (e == null)
{
throw new ArgumentNullException("e");
}
// Never try and redraw or layout when disposed are trying to dispose
if (!IsDisposed && !Disposing)
{
// Change in setting means we need to evaluate transparent painting
_evalTransparent = true;
// If required, layout the control
if (e.NeedLayout && !_layoutDirty)
{
_layoutDirty = true;
}
if (IsHandleCreated && (!_refreshAll || !e.InvalidRect.IsEmpty))
{
// Always request the repaint immediately
if (e.InvalidRect.IsEmpty)
{
_refreshAll = true;
Invalidate();
}
else
{
Invalidate(e.InvalidRect);
}
// Do we need to use an Invoke to force repaint?
if (!_refresh && EvalInvokePaint)
{
BeginInvoke(_refreshCall);
}
// A refresh is outstanding
_refresh = true;
}
}
}
/// <summary>
/// Processes a notification from palette storage of a paint and optional layout required.
/// </summary>
/// <param name="sender">Source of notification.</param>
/// <param name="e">An NeedLayoutEventArgs containing event data.</param>
protected virtual void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
Debug.Assert(e != null);
// Validate incoming reference
if (e == null)
{
throw new ArgumentNullException("e");
}
if (IsHandleCreated)
{
// Always request the repaint immediately
if (e.InvalidRect.IsEmpty)
{
Invalidate(true);
}
else
{
Invalidate(e.InvalidRect, true);
}
}
}
private void OnImageStateChanged(object sender, NeedLayoutEventArgs e)
{
OnButtonSpecChanged(sender, EventArgs.Empty);
}
/// <summary>
/// Processes a notification from palette of a paint and optional layout required.
/// </summary>
/// <param name="sender">Source of notification.</param>
/// <param name="e">An NeedLayoutEventArgs containing event data.</param>
protected virtual void OnPaletteNeedPaint(object sender, NeedLayoutEventArgs e)
{
// Need to recalculate anything relying on the palette
DirtyPaletteCounter++;
OnNeedPaint(sender, e);
}
private void OnNeedPaint(object sender, NeedLayoutEventArgs e)
{
PerformNeedPaint(e.NeedLayout);
}
private void OnImageStateChanged(object sender, NeedLayoutEventArgs e)
{
OnButtonSpecPropertyChanged("Image");
}
private void OnPaletteNeedPaint(object sender, NeedLayoutEventArgs e)
{
NeedPaint(e);
}
