X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9f8845289521c7f53e95b6dfd8275daab8b05639..7d098cfdd754c035d623cd99a8fb79ee3d3e2f9b:/src/gtk/combobox.cpp

diff --git a/src/gtk/combobox.cpp b/src/gtk/combobox.cpp
index acf403570b..627a4e3489 100644
--- a/src/gtk/combobox.cpp
+++ b/src/gtk/combobox.cpp
@@ -38,58 +38,112 @@ extern bool g_isIdle;
 //-----------------------------------------------------------------------------
 
 extern bool   g_blockEventsOnDrag;
-
+static int    g_SelectionBeforePopup = -1;
 //-----------------------------------------------------------------------------
-// "select-child" - click/cursor get select-child, changed, select-child
+//  "changed" - typing and list item matches get changed, select-child
+//              if it doesn't match an item then just get a single changed
 //-----------------------------------------------------------------------------
 
 static void
-gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
+    if (combo->m_ignoreNextUpdate)
+    {
+        combo->m_ignoreNextUpdate = FALSE;
+        return;
+    }
+
     if (!combo->m_hasVMT) return;
 
-    if (g_blockEventsOnDrag) return;
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+    event.SetString( combo->GetValue() );
+    event.SetEventObject( combo );
+    combo->GetEventHandler()->ProcessEvent( event );
+}
 
-    int curSelection = combo->GetSelection();
+static void
+gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
+{
+}
 
-    if (combo->m_prevSelection != curSelection)
+static void
+gtk_popup_hide_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo)
+{  
+    // when the popup is hidden, throw a SELECTED event only if the combobox
+    // selection changed.
+    int curSelection = combo->GetSelection();
+    if (g_SelectionBeforePopup != curSelection)
     {
-        GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
-        gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
+        wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+        event.SetInt( curSelection );
+        event.SetString( combo->GetStringSelection() );
+        event.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event );
     }
-    combo->m_prevSelection = curSelection;
-
-    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
-    event.SetInt( curSelection );
-    event.SetString( combo->GetStringSelection() );
-    event.SetEventObject( combo );
+    
+    // reset the selection flag to an identifiable value
+    g_SelectionBeforePopup = -1;
+}
 
-    combo->GetEventHandler()->ProcessEvent( event );
+static void
+gtk_popup_show_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo)
+{
+    // store the combobox selection value before the popup is shown
+    g_SelectionBeforePopup = combo->GetSelection();
 }
 
 //-----------------------------------------------------------------------------
-//  "changed" - typing and list item matches get changed, select-child
-//              if it doesn't match an item then just get a single changed
+// "select-child" - click/cursor get select-child, changed, select-child
 //-----------------------------------------------------------------------------
 
 static void
-gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
+gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     if (!combo->m_hasVMT) return;
 
-    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
-    event.SetString( combo->GetValue() );
-    event.SetEventObject( combo );
-    combo->GetEventHandler()->ProcessEvent( event );
-}
+    if (g_blockEventsOnDrag) return;
 
-static void
-gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo))
-{
+    int curSelection = combo->GetSelection();
+
+    if (combo->m_prevSelection == curSelection) return;
+
+    GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
+    gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
+
+    combo->m_prevSelection = curSelection;
+
+    // Quickly set the value of the combo box
+    // as GTK+ does that only AFTER the event
+    // is sent.
+    gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry),
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo );
+    combo->SetValue( combo->GetStringSelection() );
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo );
+
+    // throw a SELECTED event only if the combobox popup is hidden
+    // because when combobox popup is shown, gtk_combo_select_child_callback is
+    // called each times the mouse is over an item with a pressed button so a lot
+    // of SELECTED event could be generated if the user keep the mouse button down
+    // and select other items ...
+    if (g_SelectionBeforePopup == -1)
+    {
+        wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
+        event.SetInt( curSelection );
+        event.SetString( combo->GetStringSelection() );
+        event.SetEventObject( combo );
+        combo->GetEventHandler()->ProcessEvent( event );
+      }
+
+    // Now send the event ourselves
+    wxCommandEvent event2( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
+    event2.SetString( combo->GetValue() );
+    event2.SetEventObject( combo );
+    combo->GetEventHandler()->ProcessEvent( event2 );
 }
 
 //-----------------------------------------------------------------------------
@@ -101,6 +155,22 @@ IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
     EVT_SIZE(wxComboBox::OnSize)
     EVT_CHAR(wxComboBox::OnChar)
+
+    EVT_MENU(wxID_CUT, wxComboBox::OnCut)
+    EVT_MENU(wxID_COPY, wxComboBox::OnCopy)
+    EVT_MENU(wxID_PASTE, wxComboBox::OnPaste)
+    EVT_MENU(wxID_UNDO, wxComboBox::OnUndo)
+    EVT_MENU(wxID_REDO, wxComboBox::OnRedo)
+    EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete)
+    EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll)
+
+    EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo)
+    EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete)
+    EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
 END_EVENT_TABLE()
 
 bool wxComboBox::Create( wxWindow *parent, wxWindowID id,
@@ -122,7 +192,7 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                          long style, const wxValidator& validator,
                          const wxString& name )
 {
-    m_alreadySent = FALSE;
+    m_ignoreNextUpdate = FALSE;
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;
     m_prevSelection = 0;
@@ -149,6 +219,11 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     // and case-sensitive
     gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
 
+#ifdef __WXGTK20__
+    if (style & wxNO_BORDER)
+        g_object_set( GTK_ENTRY( combo->entry ), "has-frame", FALSE, NULL );
+#endif
+        
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 #ifndef __WXGTK20__
@@ -182,6 +257,13 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     if (style & wxCB_READONLY)
         gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE );
 
+    // "show" and "hide" events are generated when user click on the combobox button which popups a list
+    // this list is the "popwin" gtk widget
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "hide",
+			GTK_SIGNAL_FUNC(gtk_popup_hide_callback), (gpointer)this );
+    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "show",
+			GTK_SIGNAL_FUNC(gtk_popup_show_callback), (gpointer)this );
+
     gtk_signal_connect( GTK_OBJECT(combo->entry), "changed",
       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this );
 
@@ -193,7 +275,7 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     // This is required for tool bar support
     wxSize setsize = GetSize();
     gtk_widget_set_usize( m_widget, setsize.x, setsize.y );
-    
+
     return TRUE;
 }
 
@@ -238,8 +320,17 @@ int wxComboBox::DoAppend( const wxString &item )
     {
         gtk_widget_realize( list_item );
         gtk_widget_realize( GTK_BIN(list_item)->child );
+    }
 
-        ApplyWidgetStyle();
+    // Apply current widget style to the new list_item
+    GtkRcStyle *style = CreateWidgetStyle();
+    if (style)
+    {
+        gtk_widget_modify_style( GTK_WIDGET( list_item ), style );
+        GtkBin *bin = GTK_BIN( list_item );
+        GtkWidget *label = GTK_WIDGET( bin->child );
+        gtk_widget_modify_style( label, style );
+        gtk_rc_style_unref( style );
     }
 
     gtk_widget_show( list_item );
@@ -253,6 +344,8 @@ int wxComboBox::DoAppend( const wxString &item )
 
     EnableEvents();
 
+    InvalidateBestSize();
+
     return count - 1;
 }
 
@@ -298,6 +391,8 @@ int wxComboBox::DoInsert( const wxString &item, int pos )
 
     EnableEvents();
 
+    InvalidateBestSize();
+
     return pos;
 }
 
@@ -362,6 +457,8 @@ void wxComboBox::Clear()
     m_clientDataList.Clear();
 
     EnableEvents();
+
+    InvalidateBestSize();
 }
 
 void wxComboBox::Delete( int n )
@@ -395,8 +492,10 @@ void wxComboBox::Delete( int n )
     node = m_clientDataList.Item( n );
     if (node)
         m_clientDataList.Erase( node );
-    
+
     EnableEvents();
+
+    InvalidateBestSize();
 }
 
 void wxComboBox::SetString(int n, const wxString &text)
@@ -416,6 +515,8 @@ void wxComboBox::SetString(int n, const wxString &text)
     {
         wxFAIL_MSG( wxT("wxComboBox: wrong index") );
     }
+
+    InvalidateBestSize();
 }
 
 int wxComboBox::FindString( const wxString &item ) const
@@ -578,6 +679,8 @@ void wxComboBox::SetValue( const wxString& value )
     wxString tmp = wxT("");
     if (!value.IsNull()) tmp = value;
     gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );
+
+    InvalidateBestSize();
 }
 
 void wxComboBox::Copy()
@@ -604,6 +707,63 @@ void wxComboBox::Paste()
     gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
 }
 
+void wxComboBox::Undo()
+{
+    // TODO
+}
+
+void wxComboBox::Redo()
+{
+    // TODO
+}
+
+void wxComboBox::SelectAll()
+{
+    SetSelection(0, GetLastPosition());
+}
+
+bool wxComboBox::CanUndo() const
+{
+    // TODO
+    return false;
+}
+
+bool wxComboBox::CanRedo() const
+{
+    // TODO
+    return false;
+}
+
+bool wxComboBox::HasSelection() const
+{
+    long from, to;
+    GetSelection(&from, &to);
+    return from != to;
+}
+
+bool wxComboBox::CanCopy() const
+{
+    // Can copy if there's a selection
+    return HasSelection();
+}
+
+bool wxComboBox::CanCut() const
+{
+    return CanCopy() && IsEditable();
+}
+
+bool wxComboBox::CanPaste() const
+{
+    // TODO: check for text on the clipboard
+    return IsEditable() ;
+}
+
+bool wxComboBox::IsEditable() const
+{
+    return !HasFlag(wxCB_READONLY);
+}
+
+
 void wxComboBox::SetInsertionPoint( long pos )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
@@ -650,6 +810,23 @@ void wxComboBox::SetSelection( long from, long to )
     gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
 }
 
+void wxComboBox::GetSelection( long* from, long* to ) const
+{
+    if (IsEditable())
+    {
+        GtkEditable *editable = GTK_EDITABLE(GTK_COMBO(m_widget)->entry);
+#ifdef __WXGTK20__
+        gint start, end;
+        gtk_editable_get_selection_bounds(editable, & start, & end);
+        *from = start;
+        *to = end;
+#else
+        *from = (long) editable->selection_start_pos;
+        *to = (long) editable->selection_end_pos;
+#endif
+    }
+}
+
 void wxComboBox::SetEditable( bool editable )
 {
     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
@@ -680,7 +857,7 @@ void wxComboBox::OnChar( wxKeyEvent &event )
                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
 
                 if (window->default_widget)
-                    gtk_widget_activate (window->default_widget);
+                        gtk_widget_activate (window->default_widget);
             }
         }
 
@@ -710,20 +887,22 @@ void wxComboBox::EnableEvents()
 
 void wxComboBox::OnSize( wxSizeEvent &event )
 {
-    event.Skip();
+    // NB: In some situations (e.g. on non-first page of a wizard, if the
+    //     size used is default size), GtkCombo widget is resized correctly,
+    //     but it's look is not updated, it's rendered as if it was much wider.
+    //     No other widgets are affected, so it looks like a bug in GTK+.
+    //     Manually requesting resize calculation (as gtk_pizza_set_size does)
+    //     fixes it.
+    if (GTK_WIDGET_VISIBLE(m_widget))
+        gtk_widget_queue_resize(m_widget);
 
-#if 0
-    int w = 21;
-    gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
-
-    gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
-    gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
-#endif // 0
+    event.Skip();
 }
 
 void wxComboBox::DoApplyWidgetStyle(GtkRcStyle *style)
 {
 //    gtk_widget_modify_style( GTK_COMBO(m_widget)->button, syle );
+
     gtk_widget_modify_style( GTK_COMBO(m_widget)->entry, style );
     gtk_widget_modify_style( GTK_COMBO(m_widget)->list, style );
 
@@ -757,7 +936,6 @@ wxSize wxComboBox::DoGetBestSize() const
 
     // we know better our horizontal extent: it depends on the longest string
     // in the combobox
-    ret.x = 0;
     if ( m_widget )
     {
         int width;
@@ -785,4 +963,82 @@ wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
     return GetDefaultAttributesFromGTKWidget(gtk_combo_new, true);
 }
 
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
+
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();
+}
+
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+    Copy();
+}
+
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}
+
+void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+    long from, to;
+    GetSelection(& from, & to);
+    if (from != -1 && to != -1)
+        Remove(from, to);
+}
+
+void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))
+{
+    SetSelection(-1, -1);
+}
+
+void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}
+
+void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanRedo() );
+}
+
+void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+    event.Enable(HasSelection() && IsEditable()) ;
+}
+
+void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+    event.Enable(GetLastPosition() > 0);
+}
+
 #endif
+