public MenuHelper(MenuItem item, Graphics graphics, MenuItemRender ext)
{
menuItem = item;
extender = ext;
iconSize = (ext.imageList == null) ? SystemInformation.SmallIconSize : ext.imageList.ImageSize;
menuFont = (ext.useSystemFont || ext.menuFont == null) ? SystemInformation.MenuFont : ext.menuFont;
gfx = graphics;
}
public ToolBox()
: base()
{
this.SetStyle(ControlStyles.UserPaint, false);
this.SetStyle(ControlStyles.StandardClick, false);
this.SetStyle(ControlStyles.FixedWidth, false);
this.Dock = DockStyle.None;
this.buttonsCollection = new ToolBoxButtonCollection(this);
this.renderer = new MenuItemRender();
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
IWindowsFormsEditorService wfes = (IWindowsFormsEditorService)provider.GetService(
typeof(IWindowsFormsEditorService));
if (wfes == null || context == null)
{
return(null);
}
ImageList imageList = null;
Component component = (Component)context.Instance;
IExtenderListService extenderListService = (IExtenderListService)component.Site.GetService(typeof(IExtenderListService));
if (extenderListService != null)
{
IExtenderProvider[] extenders = extenderListService.GetExtenderProviders();
for (int i = 0; i < extenders.Length; i++)
{
if (extenders[i].GetType().FullName == "MenuItemRenderer.MenuItemRenderer")
{
MenuItemRender menuExtender = (MenuItemRender)extenders[i];
imageList = menuExtender.ImageList;
}
}
}
ImageSelector imageSelector = new ImageSelector(imageList, (int)value, wfes);
wfes.DropDownControl(imageSelector);
int imageIndex = -1;
if (imageSelector.SelectedItems.Count != 0)
{
try
{
imageIndex = (int)Convert.ToInt32(imageSelector.SelectedItems[0].Text);
}
catch
{
imageIndex = -1;
}
}
return(imageIndex);
}
public override void PaintValue(PaintValueEventArgs pe)
{
int imageIndex = -1;
if (pe.Value != null)
{
try
{
imageIndex = (int)Convert.ToUInt16(pe.Value.ToString());
}
catch
{
imageIndex = -1;
}
}
if (pe.Context.Instance == null || imageIndex < 0)
{
return;
}
ImageList imageList = null;
Component component = (Component)pe.Context.Instance;
IExtenderListService extenderListService = (IExtenderListService)component.Site.GetService(typeof(IExtenderListService));
if (extenderListService != null)
{
IExtenderProvider[] extenders = extenderListService.GetExtenderProviders();
for (int i = 0; i < extenders.Length; i++)
{
if (extenders[i].GetType().FullName == "MenuItemRenderer.MenuItemRenderer")
{
MenuItemRender menuExtender = (MenuItemRender)extenders[i];
imageList = menuExtender.ImageList;
}
}
}
if (imageList == null ||
imageList.Images.Empty ||
imageIndex >= imageList.Images.Count)
{
return;
}
pe.Graphics.DrawImage(imageList.Images[imageIndex], pe.Bounds);
}