implemented fallback for AlphaBlend() for the systems not supporting it

[wxWidgets.git] / src / common / framecmn.cpp

diff --git a/src/common/framecmn.cpp b/src/common/framecmn.cpp
index 00ceb8bfe38c61075778826fe33ca25956c44f26..87911b477f00db9c7ac20443988bf7888a0586d7 100644 (file)
--- a/src/common/framecmn.cpp
+++ b/src/common/framecmn.cpp
@@ -1,66 +1,451 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        framecmn.cpp
+// Name:        common/framecmn.cpp

 // Purpose:     common (for all platforms) wxFrame functions
 // Author:      Julian Smart, Vadim Zeitlin
 // Created:     01/02/97
 // Id:          $Id$
 // Purpose:     common (for all platforms) wxFrame functions
 // Author:      Julian Smart, Vadim Zeitlin
 // Created:     01/02/97
 // Id:          $Id$

-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright:   (c) 1998 Robert Roebling and Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+    #pragma implementation "framebase.h"
+#endif
+

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

-#include "wx/frame.h"
-#include "wx/menu.h"
-#include "wx/menuitem.h"
+#ifndef WX_PRECOMP
+    #include "wx/frame.h"
+    #include "wx/menu.h"
+    #include "wx/menuitem.h"
+    #include "wx/dcclient.h"
+#endif // WX_PRECOMP
+
+#if wxUSE_TOOLBAR
+    #include "wx/toolbar.h"
+#endif
+#if wxUSE_STATUSBAR
+    #include "wx/statusbr.h"
+#endif
+
+// ----------------------------------------------------------------------------
+// event table
+// ----------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(wxFrameBase, wxTopLevelWindow)
+    EVT_IDLE(wxFrameBase::OnIdle)
+    EVT_MENU_HIGHLIGHT_ALL(wxFrameBase::OnMenuHighlight)
+END_EVENT_TABLE()
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// construction/destruction
+// ----------------------------------------------------------------------------
+
+wxFrameBase::wxFrameBase()
+{
+#if wxUSE_MENUS
+    m_frameMenuBar = NULL;
+#endif // wxUSE_MENUS
+
+#if wxUSE_TOOLBAR
+    m_frameToolBar = NULL;
+#endif // wxUSE_TOOLBAR
+
+#if wxUSE_STATUSBAR
+    m_frameStatusBar = NULL;
+#endif // wxUSE_STATUSBAR
+
+    m_statusBarPane = 0;
+}
+
+wxFrameBase::~wxFrameBase()
+{
+    // this destructor is required for Darwin
+}
+
+wxFrame *wxFrameBase::New(wxWindow *parent,
+                          wxWindowID id,
+                          const wxString& title,
+                          const wxPoint& pos,
+                          const wxSize& size,
+                          long style,
+                          const wxString& name)
+{
+    return new wxFrame(parent, id, title, pos, size, style, name);
+}
+
+void wxFrameBase::DeleteAllBars()
+{
+#if wxUSE_MENUS
+    if ( m_frameMenuBar )
+    {
+        delete m_frameMenuBar;
+        m_frameMenuBar = (wxMenuBar *) NULL;
+    }
+#endif // wxUSE_MENUS
+
+#if wxUSE_STATUSBAR
+    if ( m_frameStatusBar )
+    {
+        delete m_frameStatusBar;
+        m_frameStatusBar = (wxStatusBar *) NULL;
+    }
+#endif // wxUSE_STATUSBAR
+
+#if wxUSE_TOOLBAR
+    if ( m_frameToolBar )
+    {
+        delete m_frameToolBar;
+        m_frameToolBar = (wxToolBar *) NULL;
+    }
+#endif // wxUSE_TOOLBAR
+}
+
+bool wxFrameBase::IsOneOfBars(const wxWindow *win) const
+{
+#if wxUSE_MENUS
+    if ( win == GetMenuBar() )
+        return TRUE;
+#endif // wxUSE_MENUS
+
+#if wxUSE_STATUSBAR
+    if ( win == GetStatusBar() )
+        return TRUE;
+#endif // wxUSE_STATUSBAR
+
+#if wxUSE_TOOLBAR
+    if ( win == GetToolBar() )
+        return TRUE;
+#endif // wxUSE_TOOLBAR
+
+    return FALSE;
+}
+
+// ----------------------------------------------------------------------------
+// wxFrame size management: we exclude the areas taken by menu/status/toolbars
+// from the client area, so the client area is what's really available for the
+// frame contents
+// ----------------------------------------------------------------------------
+
+// get the origin of the client area in the client coordinates
+wxPoint wxFrameBase::GetClientAreaOrigin() const
+{
+    wxPoint pt = wxTopLevelWindow::GetClientAreaOrigin();
+
+#if wxUSE_TOOLBAR && !defined(__WXUNIVERSAL__)
+    wxToolBar *toolbar = GetToolBar();
+    if ( toolbar && toolbar->IsShown() )
+    {
+        int w, h;
+        toolbar->GetSize(&w, &h);
+
+        if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
+        {
+            pt.x += w;
+        }
+        else
+        {
+            pt.y += h;
+        }
+    }
+#endif // wxUSE_TOOLBAR
+
+    return pt;
+}
+
+// ----------------------------------------------------------------------------
+// misc
+// ----------------------------------------------------------------------------
+
+bool wxFrameBase::ProcessCommand(int id)
+{
+#if wxUSE_MENUS
+    wxMenuBar *bar = GetMenuBar();
+    if ( !bar )
+        return FALSE;
+
+    wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
+    commandEvent.SetEventObject(this);
+
+    wxMenuItem *item = bar->FindItem(id);
+    if (item)
+    {
+        if (!item->IsEnabled())
+            return TRUE;
+
+        if (item->IsCheckable())
+        {
+            item->Toggle();
+
+            // use the new value
+            commandEvent.SetInt(item->IsChecked());
+        }
+    }
+
+    GetEventHandler()->ProcessEvent(commandEvent);
+    return TRUE;
+#else // !wxUSE_MENUS
+    return FALSE;
+#endif // wxUSE_MENUS/!wxUSE_MENUS
+}
+
+// ----------------------------------------------------------------------------
+// event handlers
+// ----------------------------------------------------------------------------
+
+void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
+{
+#if wxUSE_STATUSBAR
+    (void)ShowMenuHelp(GetStatusBar(), event.GetMenuId());
+#endif // wxUSE_STATUSBAR
+}

 
 

-void wxFrame::OnIdle(wxIdleEvent& WXUNUSED(event) )
+void wxFrameBase::OnIdle(wxIdleEvent& WXUNUSED(event) )

 {
 {

-  DoMenuUpdates();
+#if wxUSE_MENUS
+    DoMenuUpdates();
+#endif // wxUSE_MENUS

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// 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") );
+
+    m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
+    if ( m_frameStatusBar )
+        PositionStatusBar();
+
+    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);
+}
+
+void wxFrameBase::DoGiveHelp(const wxString& text, bool show)
+{
+#if wxUSE_STATUSBAR
+    if ( m_statusBarPane < 0 ) return;
+    wxStatusBar* statbar = GetStatusBar();
+    if ( !statbar ) return;
+
+    wxString help = show ? text : wxString();
+    statbar->SetStatusText( help, m_statusBarPane );
+#endif // wxUSE_STATUSBAR
+}
+
+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.IsEmpty();
+#else // !wxUSE_MENUS
+    return FALSE;
+#endif // wxUSE_MENUS/!wxUSE_MENUS
+}
+
+#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") );
+
+    m_frameToolBar = OnCreateToolBar(style, id, name);
+
+    return m_frameToolBar;
+}
+
+wxToolBar* wxFrameBase::OnCreateToolBar(long style,
+                                        wxWindowID id,
+                                        const wxString& name)
+{
+    return new wxToolBar(this, id,
+                         wxDefaultPosition, wxDefaultSize,
+                         style, name);
+}
+
+#endif // wxUSE_TOOLBAR
+
+// ----------------------------------------------------------------------------
+// menus
+// ----------------------------------------------------------------------------
+
+#if wxUSE_MENUS
+

 // update all menus
 // update all menus

-void wxFrame::DoMenuUpdates()
+void wxFrameBase::DoMenuUpdates()

 {
 {

-  wxMenuBar* bar = GetMenuBar();
-  if ( bar != NULL ) {
-    int nCount = bar->GetMenuCount();
-    for (int n = 0; n < nCount; n++)
-      DoMenuUpdates(bar->GetMenu(n));
-  }
+    wxMenuBar* bar = GetMenuBar();
+
+#ifdef __WXMSW__
+    wxWindow* focusWin = wxFindFocusDescendant((wxWindow*) this);
+#else
+    wxWindow* focusWin = (wxWindow*) NULL;
+#endif
+    if ( bar != NULL )
+    {
+        int nCount = bar->GetMenuCount();
+        for (int n = 0; n < nCount; n++)
+            DoMenuUpdates(bar->GetMenu(n), focusWin);
+    }

 }
 
 // update a menu and all submenus recursively
 }
 
 // update a menu and all submenus recursively

-void wxFrame::DoMenuUpdates(wxMenu* menu)
+void wxFrameBase::DoMenuUpdates(wxMenu* menu, wxWindow* focusWin)

 {
 {

-  wxNode* node = menu->GetItems().First();
-  while (node)
-  {
-    wxMenuItem* item = (wxMenuItem*) node->Data();
-    if ( !item->IsSeparator() )
+    wxEvtHandler* evtHandler = focusWin ? focusWin->GetEventHandler() : GetEventHandler();
+    wxMenuItemList::Node* node = menu->GetMenuItems().GetFirst();
+    while (node)

     {
     {

-      wxWindowID id = item->GetId();
-      wxUpdateUIEvent event(id);
-      event.SetEventObject( this );
-
-      if (GetEventHandler()->ProcessEvent(event))
-      {
-        if (event.GetSetText())
-          menu->SetLabel(id, event.GetText());
-        if (event.GetSetChecked())
-          menu->Check(id, event.GetChecked());
-        if (event.GetSetEnabled())
-          menu->Enable(id, event.GetEnabled());
-      }
-
-      if (item->GetSubMenu())
-        DoMenuUpdates(item->GetSubMenu());
+        wxMenuItem* item = node->GetData();
+        if ( !item->IsSeparator() )
+        {
+            wxWindowID id = item->GetId();
+            wxUpdateUIEvent event(id);
+            event.SetEventObject( this );
+
+            if (evtHandler->ProcessEvent(event))
+            {
+                if (event.GetSetText())
+                    menu->SetLabel(id, event.GetText());
+                if (event.GetSetChecked())
+                    menu->Check(id, event.GetChecked());
+                if (event.GetSetEnabled())
+                    menu->Enable(id, event.GetEnabled());
+            }
+
+            if (item->GetSubMenu())
+                DoMenuUpdates(item->GetSubMenu(), (wxWindow*) NULL);
+        }
+        node = node->GetNext();

     }
     }

-    node = node->Next();
-  }

 }
 }

+
+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();
+
+    AttachMenuBar(menubar);
+}
+
+#endif // wxUSE_MENUS