bool wxMenuItem::MSWMustUseOwnerDrawn()
{
// MIIM_BITMAP only works under WinME/2000+ so we always use owner
// drawn item under the previous versions and we also have to use
// them in any case if the item has custom colours or font
static const wxWinVersion winver = wxGetWinVersion();
bool mustUseOwnerDrawn = winver < wxWinVersion_98 ||
GetTextColour().IsOk() ||
GetBackgroundColour().IsOk() ||
GetFont().IsOk();
// Windows XP or earlier don't display menu bitmaps bigger than
// standard size correctly (they're truncated), so we must use
// owner-drawn items to show them correctly there. OTOH Win7
// doesn't seem to have any problems with even very large bitmaps
// so don't use owner-drawn items unnecessarily there (Vista wasn't
// actually tested but I assume it works as 7 rather than as XP).
if ( !mustUseOwnerDrawn && winver < wxWinVersion_Vista )
{
const wxBitmap& bmpUnchecked = GetBitmap(false),
bmpChecked = GetBitmap(true);
if ( (bmpUnchecked.IsOk() && IsGreaterThanStdSize(bmpUnchecked)) ||
(bmpChecked.IsOk() && IsGreaterThanStdSize(bmpChecked)) )
{
mustUseOwnerDrawn = true;
}
}
return mustUseOwnerDrawn;
}
// append a new item or submenu to the menu
bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
{
#if wxUSE_ACCEL
UpdateAccel(pItem);
#endif // wxUSE_ACCEL
// we should support disabling the item even prior to adding it to the menu
UINT flags = pItem->IsEnabled() ? MF_ENABLED : MF_GRAYED;
// if "Break" has just been called, insert a menu break before this item
// (and don't forget to reset the flag)
if ( m_doBreak ) {
flags |= MF_MENUBREAK;
m_doBreak = false;
}
if ( pItem->IsSeparator() ) {
flags |= MF_SEPARATOR;
}
// id is the numeric id for normal menu items and HMENU for submenus as
// required by ::AppendMenu() API
UINT_PTR id;
wxMenu *submenu = pItem->GetSubMenu();
if ( submenu != NULL ) {
wxASSERT_MSG( submenu->GetHMenu(), wxT("invalid submenu") );
submenu->SetParent(this);
id = (UINT_PTR)submenu->GetHMenu();
flags |= MF_POPUP;
}
else {
id = pItem->GetMSWId();
}
// prepare to insert the item in the menu
wxString itemText = pItem->GetItemLabel();
LPCTSTR pData = NULL;
if ( pos == (size_t)-1 )
{
// append at the end (note that the item is already appended to
// internal data structures)
pos = GetMenuItemCount() - 1;
}
// Update radio groups data if we're inserting a new radio item.
//
// NB: If we supported inserting non-radio items in the middle of existing
// radio groups to break them into two subgroups, we'd need to update
// m_radioData in this case too but currently this is not supported.
bool checkInitially = false;
if ( pItem->GetKind() == wxITEM_RADIO )
{
if ( !m_radioData )
m_radioData = new wxMenuRadioItemsData;
if ( m_radioData->UpdateOnInsert(pos) )
checkInitially = true;
}
// adjust position to account for the title of a popup menu, if any
if ( !GetMenuBar() && !m_title.empty() )
pos += 2; // for the title itself and its separator
BOOL ok = false;
#if wxUSE_OWNER_DRAWN
// Under older systems mixing owner-drawn and non-owner-drawn items results
// in inconsistent margins, so we force this one to be owner-drawn if any
// other items already are.
if ( m_ownerDrawn )
pItem->SetOwnerDrawn(true);
#endif // wxUSE_OWNER_DRAWN
// check if we have something more than a simple text item
#if wxUSE_OWNER_DRAWN
if ( pItem->IsOwnerDrawn() )
{
#ifndef __DMC__
if ( !m_ownerDrawn && !pItem->IsSeparator() )
{
// MIIM_BITMAP only works under WinME/2000+ so we always use owner
// drawn item under the previous versions and we also have to use
// them in any case if the item has custom colours or font
static const wxWinVersion winver = wxGetWinVersion();
bool mustUseOwnerDrawn = winver < wxWinVersion_98 ||
pItem->GetTextColour().IsOk() ||
pItem->GetBackgroundColour().IsOk() ||
pItem->GetFont().IsOk();
if ( !mustUseOwnerDrawn )
{
const wxBitmap& bmpUnchecked = pItem->GetBitmap(false),
bmpChecked = pItem->GetBitmap(true);
if ( (bmpUnchecked.IsOk() && IsGreaterThanStdSize(bmpUnchecked)) ||
(bmpChecked.IsOk() && IsGreaterThanStdSize(bmpChecked)) )
{
mustUseOwnerDrawn = true;
}
}
// use InsertMenuItem() if possible as it's guaranteed to look
// correct while our owner-drawn code is not
if ( !mustUseOwnerDrawn )
{
WinStruct<MENUITEMINFO> mii;
mii.fMask = MIIM_STRING | MIIM_DATA;
// don't set hbmpItem for the checkable items as it would
// be used for both checked and unchecked state
if ( pItem->IsCheckable() )
{
mii.fMask |= MIIM_CHECKMARKS;
mii.hbmpChecked = GetHBitmapForMenu(pItem, true);
mii.hbmpUnchecked = GetHBitmapForMenu(pItem, false);
}
else if ( pItem->GetBitmap().IsOk() )
{
mii.fMask |= MIIM_BITMAP;
mii.hbmpItem = GetHBitmapForMenu(pItem);
}
mii.cch = itemText.length();
mii.dwTypeData = const_cast<wxChar *>(itemText.wx_str());
if ( flags & MF_POPUP )
{
mii.fMask |= MIIM_SUBMENU;
mii.hSubMenu = GetHmenuOf(pItem->GetSubMenu());
}
else
{
mii.fMask |= MIIM_ID;
mii.wID = id;
}
mii.dwItemData = reinterpret_cast<ULONG_PTR>(pItem);
ok = ::InsertMenuItem(GetHmenu(), pos, TRUE /* by pos */, &mii);
if ( !ok )
{
wxLogLastError(wxT("InsertMenuItem()"));
}
else // InsertMenuItem() ok
{
// we need to remove the extra indent which is reserved for
// the checkboxes by default as it looks ugly unless check
// boxes are used together with bitmaps and this is not the
// case in wx API
WinStruct<MENUINFO> mi;
// don't call SetMenuInfo() directly, this would prevent
// the app from starting up under Windows 95/NT 4
typedef BOOL (WINAPI *SetMenuInfo_t)(HMENU, MENUINFO *);
wxDynamicLibrary dllUser(wxT("user32"));
wxDYNLIB_FUNCTION(SetMenuInfo_t, SetMenuInfo, dllUser);
if ( pfnSetMenuInfo )
{
mi.fMask = MIM_STYLE;
mi.dwStyle = MNS_CHECKORBMP;
if ( !(*pfnSetMenuInfo)(GetHmenu(), &mi) )
{
wxLogLastError(wxT("SetMenuInfo(MNS_NOCHECK)"));
}
}
// tell the item that it's not really owner-drawn but only
// needs to draw its bitmap, the rest is done by Windows
pItem->SetOwnerDrawn(false);
}
}
}
#endif // __DMC__
if ( !ok )
{
// item draws itself, pass pointer to it in data parameter
flags |= MF_OWNERDRAW;
pData = (LPCTSTR)pItem;
bool updateAllMargins = false;
// get size of bitmap always return valid value (0 for invalid bitmap),
// so we don't needed check if bitmap is valid ;)
int uncheckedW = pItem->GetBitmap(false).GetWidth();
int checkedW = pItem->GetBitmap(true).GetWidth();
if ( m_maxBitmapWidth < uncheckedW )
{
m_maxBitmapWidth = uncheckedW;
updateAllMargins = true;
}
if ( m_maxBitmapWidth < checkedW )
{
m_maxBitmapWidth = checkedW;
updateAllMargins = true;
}
// make other item ownerdrawn and update margin width for equals alignment
if ( !m_ownerDrawn || updateAllMargins )
{
// we must use position in SetOwnerDrawnMenuItem because
// all separators have the same id
int pos = 0;
wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
while (node)
{
wxMenuItem* item = node->GetData();
if ( !item->IsOwnerDrawn())
{
item->SetOwnerDrawn(true);
SetOwnerDrawnMenuItem(GetHmenu(), pos,
reinterpret_cast<ULONG_PTR>(item), TRUE);
}
item->SetMarginWidth(m_maxBitmapWidth);
node = node->GetNext();
pos++;
}
// set menu as ownerdrawn
m_ownerDrawn = true;
ResetMaxAccelWidth();
}
// only update our margin for equals alignment to other item
else if ( !updateAllMargins )
{
pItem->SetMarginWidth(m_maxBitmapWidth);
}
}
}
else
#endif // wxUSE_OWNER_DRAWN
{
// item is just a normal string (passed in data parameter)
flags |= MF_STRING;
#ifdef __WXWINCE__
itemText = wxMenuItem::GetLabelText(itemText);
#endif
pData = (wxChar*)itemText.wx_str();
}
// item might have already been inserted by InsertMenuItem() above
if ( !ok )
{
if ( !::InsertMenu(GetHmenu(), pos, flags | MF_BYPOSITION, id, pData) )
{
wxLogLastError(wxT("InsertMenu[Item]()"));
return false;
}
}
// Check the item if it should be initially checked.
if ( checkInitially )
pItem->Check(true);
// if we just appended the title, highlight it
if ( id == (UINT_PTR)idMenuTitle )
{
// visually select the menu title
SetDefaultMenuItem(GetHmenu(), id);
}
// if we're already attached to the menubar, we must update it
if ( IsAttached() && GetMenuBar()->IsAttached() )
{
GetMenuBar()->Refresh();
}
return true;
}
