framecmn.cpp
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CPP
584 行
}
#endif // wxUSE_MENUS && wxUSE_STATUSBAR
// Implement internal behaviour (menu updating on some platforms)
void wxFrameBase::OnInternalIdle()
{
wxTopLevelWindow::OnInternalIdle();
#if wxUSE_MENUS && wxUSE_IDLEMENUUPDATES
if (wxUpdateUIEvent::CanUpdate(this))
DoMenuUpdates();
#endif
}
// ----------------------------------------------------------------------------
// status bar stuff
// ----------------------------------------------------------------------------
#if wxUSE_STATUSBAR
wxStatusBar* wxFrameBase::CreateStatusBar(int number,
long style,
wxWindowID id,
const wxString& name)
{
// the main status bar can only be created once (or else it should be
// deleted before calling CreateStatusBar() again)
wxCHECK_MSG( !m_frameStatusBar, (wxStatusBar *)NULL,
wxT("recreating status bar in wxFrame") );
SetStatusBar(OnCreateStatusBar(number, style, id, name));
return m_frameStatusBar;
}
wxStatusBar *wxFrameBase::OnCreateStatusBar(int number,
long style,
wxWindowID id,
const wxString& name)
{
wxStatusBar *statusBar = new wxStatusBar(this, id, style, name);
statusBar->SetFieldsCount(number);
return statusBar;
}
void wxFrameBase::SetStatusText(const wxString& text, int number)
{
wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
m_frameStatusBar->SetStatusText(text, number);
}
void wxFrameBase::SetStatusWidths(int n, const int widths_field[] )
{
wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set widths for") );
m_frameStatusBar->SetStatusWidths(n, widths_field);
PositionStatusBar();
}
void wxFrameBase::PushStatusText(const wxString& text, int number)
{
wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
m_frameStatusBar->PushStatusText(text, number);
}
void wxFrameBase::PopStatusText(int number)
{
wxCHECK_RET( m_frameStatusBar != NULL, wxT("no statusbar to set text for") );
m_frameStatusBar->PopStatusText(number);
}
bool wxFrameBase::ShowMenuHelp(wxStatusBar *WXUNUSED(statbar), int menuId)
{
#if wxUSE_MENUS
// if no help string found, we will clear the status bar text
wxString helpString;
bool show = menuId != wxID_SEPARATOR && menuId != -2 /* wxID_TITLE */;
if ( show )
{
wxMenuBar *menuBar = GetMenuBar();
if ( menuBar )
{
// it's ok if we don't find the item because it might belong
// to the popup menu
wxMenuItem *item = menuBar->FindItem(menuId);
if ( item )
helpString = item->GetHelp();
}
}
DoGiveHelp(helpString, show);
return !helpString.empty();
#else // !wxUSE_MENUS
return false;
#endif // wxUSE_MENUS/!wxUSE_MENUS
}
void wxFrameBase::SetStatusBar(wxStatusBar *statBar)
{
bool hadBar = m_frameStatusBar != NULL;
m_frameStatusBar = statBar;
if ( (m_frameStatusBar != NULL) != hadBar )
{
PositionStatusBar();
DoLayout();
}
}
#endif // wxUSE_STATUSBAR
void wxFrameBase::DoGiveHelp(const wxString& text, bool show)
{
#if wxUSE_STATUSBAR
if ( m_statusBarPane < 0 )
{
// status bar messages disabled
return;
}
wxStatusBar *statbar = GetStatusBar();
if ( !statbar )
return;
wxString help;
if ( show )
help = text;
// remember the old status bar text if this is the first time we're called
// since the menu has been opened as we're going to overwrite it in our
// DoGiveHelp() and we want to restore it when the menu is closed
//
// note that it would be logical to do this in OnMenuOpen() but under MSW
// we get an EVT_MENU_HIGHLIGHT before EVT_MENU_OPEN, strangely enough, and
// so this doesn't work and instead we use the ugly trick with using
// special m_oldStatusText value as "menu opened" (but it is arguably
// better than adding yet another member variable to wxFrame on all
// platforms)
if ( m_oldStatusText.empty() )
{
m_oldStatusText = statbar->GetStatusText(m_statusBarPane);
if ( m_oldStatusText.empty() )
{
// use special value to prevent us from doing this the next time
m_oldStatusText += _T('\0');
}
}
statbar->SetStatusText(help, m_statusBarPane);
#else
wxUnusedVar(text);
wxUnusedVar(show);
#endif // wxUSE_STATUSBAR
}
// ----------------------------------------------------------------------------
// toolbar stuff
// ----------------------------------------------------------------------------
#if wxUSE_TOOLBAR
wxToolBar* wxFrameBase::CreateToolBar(long style,
wxWindowID id,
const wxString& name)
{
// the main toolbar can't be recreated (unless it was explicitly deeleted
// before)
wxCHECK_MSG( !m_frameToolBar, (wxToolBar *)NULL,
wxT("recreating toolbar in wxFrame") );
if ( style == -1 )
{
// use default style
//
// NB: we don't specify the default value in the method declaration
// because
// a) this allows us to have different defaults for different
// platforms (even if we don't have them right now)
// b) we don't need to include wx/toolbar.h in the header then
style = wxBORDER_NONE | wxTB_HORIZONTAL | wxTB_FLAT;
}
SetToolBar(OnCreateToolBar(style, id, name));
return m_frameToolBar;
}
wxToolBar* wxFrameBase::OnCreateToolBar(long style,
wxWindowID id,
const wxString& name)
{
#if defined(__WXWINCE__) && defined(__POCKETPC__)
return new wxToolMenuBar(this, id,
wxDefaultPosition, wxDefaultSize,
style, name);
#else
return new wxToolBar(this, id,
wxDefaultPosition, wxDefaultSize,
style, name);
#endif
}
void wxFrameBase::SetToolBar(wxToolBar *toolbar)
{
bool hadBar = m_frameToolBar != NULL;
m_frameToolBar = toolbar;
if ( (m_frameToolBar != NULL) != hadBar )
{
PositionToolBar();
DoLayout();
}
}
#endif // wxUSE_TOOLBAR
// ----------------------------------------------------------------------------
// menus
// ----------------------------------------------------------------------------
#if wxUSE_MENUS
// update all menus
void wxFrameBase::DoMenuUpdates(wxMenu* menu)
{
wxEvtHandler* source = GetEventHandler();
wxMenuBar* bar = GetMenuBar();
if (menu)
menu->UpdateUI(source);
else if ( bar != NULL )
{
int nCount = bar->GetMenuCount();
for (int n = 0; n < nCount; n++)
bar->GetMenu(n)->UpdateUI(source);
}
}
void wxFrameBase::DetachMenuBar()
{
if ( m_frameMenuBar )
{
m_frameMenuBar->Detach();
m_frameMenuBar = NULL;
}
}
void wxFrameBase::AttachMenuBar(wxMenuBar *menubar)
{
if ( menubar )
{
menubar->Attach((wxFrame *)this);
m_frameMenuBar = menubar;
}
}
void wxFrameBase::SetMenuBar(wxMenuBar *menubar)
{
if ( menubar == GetMenuBar() )
{
// nothing to do
return;
}
DetachMenuBar();
this->AttachMenuBar(menubar);
}
#endif // wxUSE_MENUS
#if WXWIN_COMPATIBILITY_2_2
bool wxFrameBase::Command(int winid)
{
return ProcessCommand(winid);
}
#endif // WXWIN_COMPATIBILITY_2_2
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