private void CommandBarItem_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (this.IsHandleCreated)
{
CommandBarItem item = (CommandBarItem)sender;
int index = this.Items.IndexOf(item);
if (index != -1)
{
switch (e.PropertyName)
{
case "IsVisible":
this.UpdateItems();
break;
case "Image":
this.UpdateImageList();
break;
default:
NativeMethods.TBBUTTONINFO buttonInfo = GetButtonInfo(index);
NativeMethods.SendMessage(this.Handle, NativeMethods.TB_SETBUTTONINFO, index, ref buttonInfo);
this.UpdateSize();
break;
}
}
}
}
private void AddItems()
{
NativeMethods.SendMessage(Handle, NativeMethods.TB_BUTTONSTRUCTSIZE, Marshal.SizeOf(typeof(NativeMethods.TBBUTTON)), 0);
int extendedStyle = NativeMethods.TBSTYLE_EX_HIDECLIPPEDBUTTONS | NativeMethods.TBSTYLE_EX_DOUBLEBUFFER;
if (style == CommandBarStyle.ToolBar)
{
extendedStyle |= NativeMethods.TBSTYLE_EX_DRAWDDARROWS;
}
NativeMethods.SendMessage(Handle, NativeMethods.TB_SETEXTENDEDSTYLE, 0, extendedStyle);
this.UpdateImageList();
for (int i = 0; i < items.Count; i++)
{
NativeMethods.TBBUTTON button = new NativeMethods.TBBUTTON();
button.idCommand = i;
NativeMethods.SendMessage(this.Handle, NativeMethods.TB_INSERTBUTTON, i, ref button);
NativeMethods.TBBUTTONINFO buttonInfo = this.GetButtonInfo(i);
NativeMethods.SendMessage(this.Handle, NativeMethods.TB_SETBUTTONINFO, i, ref buttonInfo);
}
// Add ComboBox controls.
this.Controls.Clear();
for (int i = 0; i < items.Count; i++)
{
CommandBarComboBox comboBox = this.items[i] as CommandBarComboBox;
if (comboBox != null)
{
NativeMethods.RECT rect = new NativeMethods.RECT();
NativeMethods.SendMessage(this.Handle, NativeMethods.TB_GETITEMRECT, i, ref rect);
rect.top = rect.top + (((rect.bottom - rect.top) - comboBox.Height) / 2);
comboBox.ComboBox.Location = new Point(rect.left, rect.top);
this.Controls.Add(comboBox.ComboBox);
}
}
this.UpdateSize();
}
private NativeMethods.TBBUTTONINFO GetButtonInfo(int index)
{
CommandBarItem item = items[index];
NativeMethods.TBBUTTONINFO buttonInfo = new NativeMethods.TBBUTTONINFO();
buttonInfo.cbSize = Marshal.SizeOf(typeof(NativeMethods.TBBUTTONINFO));
buttonInfo.dwMask = NativeMethods.TBIF_IMAGE | NativeMethods.TBIF_STATE | NativeMethods.TBIF_STYLE | NativeMethods.TBIF_COMMAND | NativeMethods.TB_DELETEBUTTON;
buttonInfo.idCommand = index;
buttonInfo.iImage = NativeMethods.I_IMAGECALLBACK;
buttonInfo.fsStyle = NativeMethods.BTNS_BUTTON | NativeMethods.BTNS_AUTOSIZE;
buttonInfo.fsState = 0;
buttonInfo.cx = 0;
buttonInfo.lParam = IntPtr.Zero;
buttonInfo.pszText = IntPtr.Zero;
buttonInfo.cchText = 0;
if (!item.IsVisible)
{
buttonInfo.fsState |= NativeMethods.TBSTATE_HIDDEN;
}
CommandBarComboBox comboBox = item as CommandBarComboBox;
if (comboBox != null)
{
buttonInfo.cx = (short)(comboBox.Width + 4);
buttonInfo.dwMask = NativeMethods.TBIF_SIZE;
}
if (item is CommandBarSeparator)
{
buttonInfo.fsStyle |= NativeMethods.BTNS_SEP;
}
else
{
if (item.IsEnabled)
{
buttonInfo.fsState |= NativeMethods.TBSTATE_ENABLED;
}
CommandBarMenu menu = item as CommandBarMenu;
if ((menu != null) && (menu.Items.Count > 0))
{
buttonInfo.fsStyle |= NativeMethods.BTNS_DROPDOWN;
}
if (style == CommandBarStyle.ToolBar)
{
if (item is CommandBarMenu)
{
buttonInfo.fsStyle |= NativeMethods.BTNS_WHOLEDROPDOWN;
}
}
CommandBarCheckBox checkBox = item as CommandBarCheckBox;
if ((checkBox != null) && (checkBox.IsChecked))
{
buttonInfo.fsState |= NativeMethods.TBSTATE_CHECKED;
}
}
if (item is CommandBarSeparator)
{
buttonInfo.iImage = NativeMethods.I_IMAGENONE;
}
else if (item.Image != null)
{
buttonInfo.iImage = index;
}
if ((this.Style == CommandBarStyle.Menu) && (item.Text != null) && (item.Text.Length != 0))
{
buttonInfo.dwMask |= NativeMethods.TBIF_TEXT;
buttonInfo.pszText = Marshal.StringToHGlobalUni(item.Text + "\0");
buttonInfo.cchText = item.Text.Length;
}
return(buttonInfo);
}