fixed crash in OnSize() handler

[wxWidgets.git] / src / gtk1 / combobox.cpp

diff --git a/src/gtk1/combobox.cpp b/src/gtk1/combobox.cpp
index eb10d33e389b6f080019d2a9364a17f4f2553262..c138c48a42f01adad90ac78719a5474f177f2bb0 100644 (file)
--- a/src/gtk1/combobox.cpp
+++ b/src/gtk1/combobox.cpp
@@ -18,6 +18,8 @@
 #include "wx/settings.h"
 #include "wx/intl.h"
 
 #include "wx/settings.h"
 #include "wx/intl.h"
 

+#include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED
+

 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 


@@ -55,8 +57,18 @@ gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
 
     combo->m_alreadySent = TRUE;
 
 
     combo->m_alreadySent = TRUE;
 

+    int curSelection = combo->GetSelection();
+
+    if (combo->m_prevSelection != curSelection)
+    {
+        GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
+        gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
+    }
+
+    combo->m_prevSelection = curSelection;
+

     wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
     wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );

-    event.SetInt( combo->GetSelection() );
+    event.SetInt( curSelection );

     event.SetString( combo->GetStringSelection() );
     event.SetEventObject( combo );
 
     event.SetString( combo->GetStringSelection() );
     event.SetEventObject( combo );
 


@@ -100,6 +112,7 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     m_alreadySent = FALSE;
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;
     m_alreadySent = FALSE;
     m_needParent = TRUE;
     m_acceptsFocus = TRUE;

+    m_prevSelection = 0;

 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, validator, name ))


@@ -111,10 +124,16 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     m_widget = gtk_combo_new();
 
     // make it more useable
     m_widget = gtk_combo_new();
 
     // make it more useable

-    gtk_combo_set_use_arrows_always(GTK_COMBO(m_widget), TRUE);
+    gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
+    
+    // and case-sensitive
+    gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
+

 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
 

+    gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
+

     for (int i = 0; i < n; i++)
     {
         /* don't send first event, which GTK sends aways when
     for (int i = 0; i < n; i++)
     {
         /* don't send first event, which GTK sends aways when


@@ -135,11 +154,11 @@ bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
     }
 
     m_parent->DoAddChild( this );
     }
 
     m_parent->DoAddChild( this );

+    
+    m_focusWidget = GTK_COMBO(m_widget)->entry;

 
     PostCreation();
 
 
     PostCreation();
 

-    ApplyWidgetStyle();
-

     ConnectWidget( GTK_COMBO(m_widget)->button );
 
     if (!value.IsNull()) SetValue( value );
     ConnectWidget( GTK_COMBO(m_widget)->button );
 
     if (!value.IsNull()) SetValue( value );


@@ -429,7 +448,9 @@ void wxComboBox::SetSelection( int n )
     DisableEvents();
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;
     DisableEvents();
 
     GtkWidget *list = GTK_COMBO(m_widget)->list;

+    gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );

     gtk_list_select_item( GTK_LIST(list), n );
     gtk_list_select_item( GTK_LIST(list), n );

+    m_prevSelection = n;

 
     EnableEvents();
 }
 
     EnableEvents();
 }


@@ -579,6 +600,7 @@ void wxComboBox::OnChar( wxKeyEvent &event )
             if ( FindString(value) == wxNOT_FOUND )
             {
                 Append(value);
             if ( FindString(value) == wxNOT_FOUND )
             {
                 Append(value);

+                SetStringSelection(value);

 
                 // and generate the selected event for it
                 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
 
                 // and generate the selected event for it
                 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );


@@ -668,7 +690,27 @@ bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 wxSize wxComboBox::DoGetBestSize() const
 {
     wxSize ret( wxControl::DoGetBestSize() );
 wxSize wxComboBox::DoGetBestSize() const
 {
     wxSize ret( wxControl::DoGetBestSize() );

-    if (ret.x < 100) ret.x = 100;
+
+    // we know better our horizontal extent: it depends on the longest string
+    // in the combobox
+    ret.x = 0;
+    if ( m_widget )
+    {
+        GdkFont *font = m_font.GetInternalFont();
+
+        wxCoord width;
+        size_t count = Number();
+        for ( size_t n = 0; n < count; n++ )
+        {
+            width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
+            if ( width > ret.x )
+                ret.x = width;
+        }
+    }
+
+    // empty combobox should have some reasonable default size too
+    if ( ret.x < 100 )
+        ret.x = 100;

     return ret;
 }
 
     return ret;
 }