#endif
#include "wx/scopedarray.h"
+#include "wx/vector.h"
#include "wx/msw/private.h"
#include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
static const int idMenuTitle = wxID_NONE;
// ----------------------------------------------------------------------------
-// private functions
+// private helper classes and functions
// ----------------------------------------------------------------------------
+// Contains the data about the radio items groups in the given menu.
+class wxMenuRadioItemsData
+{
+public:
+ wxMenuRadioItemsData() { }
+
+ // Default copy ctor, assignment operator and dtor are all ok.
+
+ // Find the start and end of the group containing the given position or
+ // return false if it's not inside any range.
+ bool GetGroupRange(int pos, int *start, int *end) const
+ {
+ // We use a simple linear search here because there are not that many
+ // items in a menu and hence even fewer radio items ranges anyhow, so
+ // normally there is no need to do anything fancy (like keeping the
+ // array sorted and using binary search).
+ for ( Ranges::const_iterator it = m_ranges.begin();
+ it != m_ranges.end();
+ ++it )
+ {
+ const Range& r = *it;
+
+ if ( r.start <= pos && pos <= r.end )
+ {
+ if ( start )
+ *start = r.start;
+ if ( end )
+ *end = r.end;
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ // Take into account the new radio item about to be added at the given
+ // position.
+ //
+ // Returns true if this item starts a new radio group, false if it extends
+ // an existing one.
+ bool UpdateOnInsert(int pos)
+ {
+ bool inExistingGroup = false;
+
+ for ( Ranges::iterator it = m_ranges.begin();
+ it != m_ranges.end();
+ ++it )
+ {
+ Range& r = *it;
+
+ if ( pos < r.start )
+ {
+ // Item is inserted before this range, update its indices.
+ r.start++;
+ r.end++;
+ }
+ else if ( pos <= r.end + 1 )
+ {
+ // Item is inserted in the middle of this range or immediately
+ // after it in which case it extends this range so make it span
+ // one more item in any case.
+ r.end++;
+
+ inExistingGroup = true;
+ }
+ //else: Item is inserted after this range, nothing to do for it.
+ }
+
+ if ( inExistingGroup )
+ return false;
+
+ // Make a new range for the group this item will belong to.
+ Range r;
+ r.start = pos;
+ r.end = pos;
+ m_ranges.push_back(r);
+
+ return true;
+ }
+
+private:
+ // Contains the inclusive positions of the range start and end.
+ struct Range
+ {
+ int start;
+ int end;
+ };
+
+ typedef wxVector<Range> Ranges;
+ Ranges m_ranges;
+};
+
namespace
{
// Construct a menu with optional title (then use append)
void wxMenu::Init()
{
+ m_radioData = NULL;
m_doBreak = false;
- m_startRadioGroup = -1;
#if wxUSE_OWNER_DRAWN
m_ownerDrawn = false;
// delete accels
WX_CLEAR_ARRAY(m_accels);
#endif // wxUSE_ACCEL
+
+ delete m_radioData;
}
void wxMenu::Break()
m_doBreak = true;
}
-void wxMenu::Attach(wxMenuBarBase *menubar)
-{
- wxMenuBase::Attach(menubar);
-
- EndRadioGroup();
-}
-
#if wxUSE_ACCEL
int wxMenu::FindAccel(int id) const
} // anonymous namespace
+bool wxMenu::MSWGetRadioGroupRange(int pos, int *start, int *end) const
+{
+ return m_radioData && m_radioData->GetGroupRange(pos, start, end);
+}
+
// append a new item or submenu to the menu
bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
{
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
}
+ // 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 )
{
return true;
}
-void wxMenu::EndRadioGroup()
-{
- // we're not inside a radio group any longer
- m_startRadioGroup = -1;
-}
-
wxMenuItem* wxMenu::DoAppend(wxMenuItem *item)
{
- wxCHECK_MSG( item, NULL, wxT("NULL item in wxMenu::DoAppend") );
-
- bool check = false;
-
- if ( item->GetKind() == wxITEM_RADIO )
- {
- int count = GetMenuItemCount();
-
- if ( m_startRadioGroup == -1 )
- {
- // start a new radio group
- m_startRadioGroup = count;
-
- // for now it has just one element
- item->SetAsRadioGroupStart();
- item->SetRadioGroupEnd(m_startRadioGroup);
-
- // ensure that we have a checked item in the radio group
- check = true;
- }
- else // extend the current radio group
- {
- // we need to update its end item
- item->SetRadioGroupStart(m_startRadioGroup);
- wxMenuItemList::compatibility_iterator node = GetMenuItems().Item(m_startRadioGroup);
-
- if ( node )
- {
- node->GetData()->SetRadioGroupEnd(count);
- }
- else
- {
- wxFAIL_MSG( wxT("where is the radio group start item?") );
- }
- }
- }
- else // not a radio item
- {
- EndRadioGroup();
- }
-
- if ( !wxMenuBase::DoAppend(item) || !DoInsertOrAppend(item) )
- {
- return NULL;
- }
-
- if ( check )
- {
- // check the item initially
- item->Check(true);
- }
-
- return item;
+ return wxMenuBase::DoAppend(item) && DoInsertOrAppend(item) ? item : NULL;
}
wxMenuItem* wxMenu::DoInsert(size_t pos, wxMenuItem *item)
projects / wxWidgets.git / blobdiff