/// <summary>
/// Raises the GalleryDropMenu event.
/// </summary>
/// <param name="e">An GalleryDropMenuEventArgs containing the event data.</param>
protected virtual void OnGalleryDropMenu(GalleryDropMenuEventArgs e)
{
if (GalleryDropMenu != null)
{
GalleryDropMenu(this, e);
}
}
internal void ShownGalleryDropDown(Rectangle screenRect,
KryptonContextMenuPositionH hPosition,
KryptonContextMenuPositionV vPosition,
EventHandler finishDelegate,
int actualLineItems)
{
// First time around create the context menu, otherwise just clear it down
if (_dropMenu == null)
{
_dropMenu = new KryptonContextMenu();
}
// Number of line items equals the number actually used
int lineItems = Math.Max(DropMinItemWidth, Math.Min(DropMaxItemWidth, actualLineItems));
// If there are no ranges defined, just add a single entry showing all enties
if (_dropButtonRanges.Count == 0)
{
KryptonContextMenuImageSelect imageSelect = new KryptonContextMenuImageSelect();
imageSelect.ImageList = ImageList;
imageSelect.ImageIndexStart = 0;
imageSelect.ImageIndexEnd = (ImageList == null ? 0 : ImageList.Images.Count - 1);
imageSelect.SelectedIndex = SelectedIndex;
imageSelect.LineItems = lineItems;
_dropMenu.Items.Add(imageSelect);
}
else
{
foreach (KryptonGalleryRange range in _dropButtonRanges)
{
// If not the first item in the menu, add a separator
if (_dropMenu.Items.Count > 0)
{
_dropMenu.Items.Add(new KryptonContextMenuSeparator());
}
// Only add a heading if the heading text is not empty
if (!string.IsNullOrEmpty(range.Heading))
{
KryptonContextMenuHeading heading = new KryptonContextMenuHeading();
heading.Text = range.Heading;
_dropMenu.Items.Add(heading);
}
// Add the image select for the range
KryptonContextMenuImageSelect imageSelect = new KryptonContextMenuImageSelect();
imageSelect.ImageList = ImageList;
imageSelect.ImageIndexStart = Math.Max(0, range.ImageIndexStart);
imageSelect.ImageIndexEnd = Math.Min(range.ImageIndexEnd, (ImageList == null ? 0 : ImageList.Images.Count - 1));
imageSelect.SelectedIndex = SelectedIndex;
imageSelect.LineItems = lineItems;
_dropMenu.Items.Add(imageSelect);
}
}
// Give event handler a change to modify the menu
GalleryDropMenuEventArgs args = new GalleryDropMenuEventArgs(_dropMenu);
OnGalleryDropMenu(args);
if (!args.Cancel && CommonHelper.ValidKryptonContextMenu(args.KryptonContextMenu))
{
// Hook into relevant events of the image select areas
foreach (KryptonContextMenuItemBase item in _dropMenu.Items)
{
if (item is KryptonContextMenuImageSelect)
{
KryptonContextMenuImageSelect itemSelect = (KryptonContextMenuImageSelect)item;
itemSelect.SelectedIndexChanged += new EventHandler(OnDropImageSelect);
itemSelect.TrackingImage += new EventHandler <ImageSelectEventArgs>(OnDropImageTracking);
}
}
// Need to know when the menu is dismissed
args.KryptonContextMenu.Closed += new ToolStripDropDownClosedEventHandler(OnDropMenuClosed);
// Remember the delegate we need to fire when the menu is dismissed
_finishDelegate = finishDelegate;
// Show the menu to the user
args.KryptonContextMenu.Show(this, screenRect, hPosition, vPosition);
}
else
{
// Nothing to show, but still need to call the finished delegate?
if (finishDelegate != null)
{
finishDelegate(this, EventArgs.Empty);
}
}
}
private void OnGalleryGalleryDropMenu(object sender, GalleryDropMenuEventArgs e)
{
OnGalleryDropMenu(e);
}