/////////////////////////////////////////////////////////////////////////////
-// Name: choice.cpp
+// Name: src/gtk/choice.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+#include "wx/wxprec.h"
-#ifdef __GNUG__
-#pragma implementation "choice.h"
-#endif
-
-#include "wx/defs.h"
-
-#if wxUSE_CHOICE
+#if wxUSE_CHOICE || wxUSE_COMBOBOX
#include "wx/choice.h"
+#ifndef WX_PRECOMP
+ #include "wx/arrstr.h"
+#endif
+
#include "wx/gtk/private.h"
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+// ----------------------------------------------------------------------------
+// GTK callbacks
+// ----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
+extern "C" {
-extern bool g_blockEventsOnDrag;
-
-//-----------------------------------------------------------------------------
-// "activate"
-//-----------------------------------------------------------------------------
-
-static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
+static void
+gtk_choice_changed_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
{
- if (g_isIdle)
- wxapp_install_idle_handler();
-
- if (!choice->m_hasVMT) return;
-
- if (g_blockEventsOnDrag) return;
-
- wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
- int n = choice->GetSelection();
-
- event.SetInt( n );
- event.SetString( choice->GetStringSelection() );
- event.SetEventObject(choice);
-
- if ( choice->HasClientObjectData() )
- event.SetClientObject( choice->GetClientObject(n) );
- else if ( choice->HasClientUntypedData() )
- event.SetClientData( choice->GetClientData(n) );
+ choice->SendSelectionChangedEvent(wxEVT_COMMAND_CHOICE_SELECTED);
+}
- choice->GetEventHandler()->ProcessEvent(event);
}
//-----------------------------------------------------------------------------
// wxChoice
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
-wxChoice::wxChoice()
+void wxChoice::Init()
{
- m_strings = (wxSortedArrayString *)NULL;
+ m_strings = NULL;
+ m_stringCellIndex = 0;
}
bool wxChoice::Create( wxWindow *parent, wxWindowID id,
const wxPoint &pos, const wxSize &size,
- int n, const wxString choices[],
- long style, const wxValidator& validator, const wxString &name )
+ const wxArrayString& choices,
+ long style, const wxValidator& validator,
+ const wxString &name )
{
- m_needParent = TRUE;
-#if (GTK_MINOR_VERSION > 0)
- m_acceptsFocus = TRUE;
-#endif
+ wxCArrayString chs(choices);
+
+ return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
+ style, validator, name );
+}
+bool wxChoice::Create( wxWindow *parent, wxWindowID id,
+ const wxPoint &pos, const wxSize &size,
+ int n, const wxString choices[],
+ long style, const wxValidator& validator,
+ const wxString &name )
+{
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, validator, name ))
{
wxFAIL_MSG( wxT("wxChoice creation failed") );
- return FALSE;
+ return false;
}
- m_widget = gtk_option_menu_new();
-
- if ( style & wxCB_SORT )
+ if ( IsSorted() )
{
- // if our m_strings != NULL, DoAppend() will check for it and insert
+ // if our m_strings != NULL, Append() will check for it and insert
// items in the correct order
m_strings = new wxSortedArrayString;
}
- GtkWidget *menu = gtk_menu_new();
+ m_widget = gtk_combo_box_new_text();
+ g_object_ref(m_widget);
- for (int i = 0; i < n; i++)
- {
- GtkAppendHelper(menu, choices[i]);
- }
-
- gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
+ Append(n, choices);
m_parent->DoAddChild( this );
- PostCreation();
-
- SetFont( parent->GetFont() );
+ PostCreation(size);
- SetBestSize(size);
+ g_signal_connect_after (m_widget, "changed",
+ G_CALLBACK (gtk_choice_changed_callback), this);
- SetBackgroundColour( parent->GetBackgroundColour() );
- SetForegroundColour( parent->GetForegroundColour() );
-
- Show( TRUE );
-
- return TRUE;
+ return true;
}
wxChoice::~wxChoice()
{
- Clear();
-
delete m_strings;
}
-int wxChoice::DoAppend( const wxString &item )
+void wxChoice::SendSelectionChangedEvent(wxEventType evt_type)
{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
-
- GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
+ if (!m_hasVMT)
+ return;
- return GtkAppendHelper(menu, item);
-}
+ if (GetSelection() == -1)
+ return;
-void wxChoice::DoSetItemClientData( int n, void* clientData )
-{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
+ wxCommandEvent event( evt_type, GetId() );
- wxNode *node = m_clientList.Nth( n );
- wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
+ int n = GetSelection();
+ event.SetInt( n );
+ event.SetString( GetStringSelection() );
+ event.SetEventObject( this );
+ InitCommandEventWithItems( event, n );
- node->SetData( (wxObject*) clientData );
+ HandleWindowEvent( event );
}
-void* wxChoice::DoGetItemClientData( int n ) const
+void wxChoice::GTKInsertComboBoxTextItem( unsigned int n, const wxString& text )
{
- wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
-
- wxNode *node = m_clientList.Nth( n );
- wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") );
-
- return node->Data();
+ gtk_combo_box_insert_text( GTK_COMBO_BOX( m_widget ), n, wxGTK_CONV( text ) );
}
-void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData, wxClientDataType type)
{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
+ wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid control") );
- wxNode *node = m_clientList.Nth( n );
- wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
+ wxASSERT_MSG( !IsSorted() || (pos == GetCount()),
+ wxT("In a sorted choice data could only be appended"));
- wxClientData *cd = (wxClientData*) node->Data();
- delete cd;
+ const int count = items.GetCount();
- node->SetData( (wxObject*) clientData );
-}
+ int n = wxNOT_FOUND;
-wxClientData* wxChoice::DoGetItemClientObject( int n ) const
-{
- wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
+ for ( int i = 0; i < count; ++i )
+ {
+ n = pos + i;
+ // If sorted, use this wxSortedArrayStrings to determine
+ // the right insertion point
+ if(m_strings)
+ n = m_strings->Add(items[i]);
- wxNode *node = m_clientList.Nth( n );
- wxCHECK_MSG( node, (wxClientData *)NULL,
- wxT("invalid index in wxChoice::DoGetItemClientObject") );
+ GTKInsertComboBoxTextItem( n, items[i] );
- return (wxClientData*) node->Data();
-}
+ m_clientData.Insert( NULL, n );
+ AssignNewItemClientData(n, clientData, i, type);
+ }
-void wxChoice::Clear()
-{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+ InvalidateBestSize();
- gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) );
- GtkWidget *menu = gtk_menu_new();
- gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
+ return n;
+}
- if ( HasClientObjectData() )
- {
- // destroy the data (due to Robert's idea of using wxList<wxObject>
- // and not wxList<wxClientData> we can't just say
- // m_clientList.DeleteContents(TRUE) - this would crash!
- wxNode *node = m_clientList.First();
- while ( node )
- {
- delete (wxClientData *)node->Data();
- node = node->Next();
- }
- }
- m_clientList.Clear();
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
+{
+ m_clientData[n] = clientData;
+}
- if ( m_strings )
- m_strings->Clear();
+void* wxChoice::DoGetItemClientData(unsigned int n) const
+{
+ return m_clientData[n];
}
-void wxChoice::Delete( int n )
+void wxChoice::DoClear()
{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+ wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
- // VZ: apparently GTK+ doesn't have a built-in function to do it (not even
- // in 2.0), hence this dump implementation - still better than nothing
- int i,
- count = GetCount();
+ DisableEvents();
- wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") );
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+ gtk_list_store_clear(GTK_LIST_STORE(model));
- wxArrayString items;
- items.Alloc(count);
- for ( i = 0; i < count; i++ )
- {
- if ( i != n )
- items.Add(GetString(i));
- }
+ m_clientData.Clear();
+
+ if (m_strings)
+ m_strings->Clear();
- Clear();
+ EnableEvents();
- for ( i = 0; i < count - 1; i++ )
- {
- Append(items[i]);
- }
+ InvalidateBestSize();
}
-int wxChoice::FindString( const wxString &string ) const
+void wxChoice::DoDeleteOneItem(unsigned int n)
{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
+ wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
+ wxCHECK_RET( IsValid(n), wxT("invalid index in wxChoice::Delete") );
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+ GtkListStore* store = GTK_LIST_STORE(model);
+ GtkTreeIter iter;
+ gtk_tree_model_iter_nth_child( model, &iter,
+ NULL, (gint) n );
+ gtk_list_store_remove( store, &iter );
+
+ m_clientData.RemoveAt( n );
+ if ( m_strings )
+ m_strings->RemoveAt( n );
- // If you read this code once and you think you understand
- // it, then you are very wrong. Robert Roebling.
+ InvalidateBestSize();
+}
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
+int wxChoice::FindString( const wxString &item, bool bCase ) const
+{
+ wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid control") );
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+ GtkTreeIter iter;
+ gtk_tree_model_get_iter_first( model, &iter );
+ if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter ))
+ return -1;
int count = 0;
- GList *child = menu_shell->children;
- while (child)
+ do
{
- GtkBin *bin = GTK_BIN( child->data );
- GtkLabel *label = (GtkLabel *) NULL;
- if (bin->child)
- label = GTK_LABEL(bin->child);
- if (!label)
- label = GTK_LABEL( BUTTON_CHILD(m_widget) );
-
- wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
+ GValue value = { 0, };
+ gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
+ wxString str = wxGTK_CONV_BACK( g_value_get_string( &value ) );
+ g_value_unset( &value );
- if (string == wxString(label->label,*wxConvCurrent))
+ if (item.IsSameAs( str, bCase ) )
return count;
- child = child->next;
count++;
}
+ while ( gtk_tree_model_iter_next(model, &iter) );
- return -1;
+ return wxNOT_FOUND;
}
int wxChoice::GetSelection() const
{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
-
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
- GList *child = menu_shell->children;
- while (child)
- {
- GtkBin *bin = GTK_BIN( child->data );
- if (!bin->child) return count;
- child = child->next;
- count++;
- }
-
- return -1;
+ return gtk_combo_box_get_active( GTK_COMBO_BOX( m_widget ) );
}
-void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) )
+void wxChoice::SetString(unsigned int n, const wxString &text)
{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+ wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
- wxFAIL_MSG(wxT("not implemented"));
-}
-
-wxString wxChoice::GetString( int n ) const
-{
- wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") );
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ wxCHECK_RET( IsValid(n), wxT("invalid index") );
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
- GList *child = menu_shell->children;
- while (child)
+ GtkTreeModel *model = gtk_combo_box_get_model( combobox );
+ GtkTreeIter iter;
+ if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))
{
- GtkBin *bin = GTK_BIN( child->data );
- if (count == n)
- {
- GtkLabel *label = (GtkLabel *) NULL;
- if (bin->child)
- label = GTK_LABEL(bin->child);
- if (!label)
- label = GTK_LABEL( BUTTON_CHILD(m_widget) );
-
- wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
-
- return wxString(label->label,*wxConvCurrent);
- }
- child = child->next;
- count++;
+ GValue value = { 0, };
+ g_value_init( &value, G_TYPE_STRING );
+ g_value_set_string( &value, wxGTK_CONV( text ) );
+ gtk_list_store_set_value( GTK_LIST_STORE(model), &iter, m_stringCellIndex, &value );
+ g_value_unset( &value );
}
- wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") );
-
- return wxT("");
+ InvalidateBestSize();
}
-int wxChoice::GetCount() const
+wxString wxChoice::GetString(unsigned int n) const
{
- wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") );
+ wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid control") );
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
- GList *child = menu_shell->children;
- while (child)
+ wxString str;
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel *model = gtk_combo_box_get_model( combobox );
+ GtkTreeIter iter;
+ if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n))
{
- count++;
- child = child->next;
+ GValue value = { 0, };
+ gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value );
+ wxString tmp = wxGTK_CONV_BACK( g_value_get_string( &value ) );
+ g_value_unset( &value );
+ return tmp;
}
- return count;
+
+ return str;
}
-void wxChoice::SetSelection( int n )
+unsigned int wxChoice::GetCount() const
{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
-
- int tmp = n;
- gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
+ wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid control") );
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+ GtkTreeIter iter;
+ gtk_tree_model_get_iter_first( model, &iter );
+ if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter ))
+ return 0;
+ unsigned int ret = 1;
+ while (gtk_tree_model_iter_next( model, &iter ))
+ ret++;
+ return ret;
}
-void wxChoice::ApplyWidgetStyle()
+void wxChoice::SetSelection( int n )
{
- SetWidgetStyle();
-
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
-
- gtk_widget_set_style( m_widget, m_widgetStyle );
- gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
+ wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
- GList *child = menu_shell->children;
- while (child)
- {
- gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
-
- GtkBin *bin = GTK_BIN( child->data );
- GtkWidget *label = (GtkWidget *) NULL;
- if (bin->child)
- label = bin->child;
- if (!label)
- label = BUTTON_CHILD(m_widget);
+ DisableEvents();
- gtk_widget_set_style( label, m_widgetStyle );
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ gtk_combo_box_set_active( combobox, n );
- child = child->next;
- }
+ EnableEvents();
}
-size_t wxChoice::GtkAppendHelper(GtkWidget *menu, const wxString& item)
+void wxChoice::SetColumns(int n)
{
- GtkWidget *menu_item = gtk_menu_item_new_with_label( item.mbc_str() );
-
- size_t index;
- if ( m_strings )
- {
- // sorted control, need to insert at the correct index
- index = m_strings->Add(item);
-
- gtk_menu_insert( GTK_MENU(menu), menu_item, index );
-
- if ( index )
- {
- m_clientList.Insert( m_clientList.Item(index - 1),
- (wxObject*) NULL );
- }
- else
- {
- m_clientList.Insert( (wxObject*) NULL );
- }
- }
- else
- {
- // normal control, just append
- gtk_menu_append( GTK_MENU(menu), menu_item );
-
- m_clientList.Append( (wxObject*) NULL );
+ gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(m_widget), n);
+}
- // don't call wxChoice::GetCount() from here because it doesn't work
- // if we're called from ctor (and GtkMenuShell is still NULL)
- index = m_clientList.GetCount() - 1;
- }
+int wxChoice::GetColumns() const
+{
+ // gtk_combo_box_get_wrap_width() was added in gtk 2.6
+ gint intval;
+ g_object_get(G_OBJECT(m_widget), "wrap-width", &intval, NULL);
+ return intval;
+}
- if (GTK_WIDGET_REALIZED(m_widget))
- {
- gtk_widget_realize( menu_item );
- gtk_widget_realize( GTK_BIN(menu_item)->child );
- if (m_widgetStyle) ApplyWidgetStyle();
- }
+void wxChoice::DisableEvents()
+{
+ g_signal_handlers_block_by_func(m_widget,
+ (gpointer) gtk_choice_changed_callback, this);
+}
- gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
- GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
+void wxChoice::EnableEvents()
+{
+ g_signal_handlers_unblock_by_func(m_widget,
+ (gpointer) gtk_choice_changed_callback, this);
+}
- gtk_widget_show( menu_item );
- // return the index of the item in the control
- return index;
+GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
+{
+ return m_widget->window;
}
+// Notice that this method shouldn't be necessary, because GTK calculates
+// properly size of the combobox but for unknown reasons it doesn't work
+// correctly in wx without this.
wxSize wxChoice::DoGetBestSize() const
{
+ // strangely, this returns a width of 188 pixels from GTK+ (?)
wxSize ret( wxControl::DoGetBestSize() );
// we know better our horizontal extent: it depends on the longest string
- // we have
- ret.x = 0;
+ // in the combobox
if ( m_widget )
{
- GdkFont *font = m_font.GetInternalFont();
-
- wxCoord width;
- size_t count = GetCount();
- for ( size_t n = 0; n < count; n++ )
+ ret.x = GetCount() > 0 ? 0 : 60; // start with something "sensible"
+ int width;
+ unsigned int count = GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
- width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
- if ( width > ret.x )
- ret.x = width;
+ GetTextExtent(GetString(n), &width, NULL, NULL, NULL );
+ if ( width + 40 > ret.x ) // 40 for drop down arrow and space around text
+ ret.x = width + 40;
}
-
- // add extra for the choice "=" button
-
- // VZ: I don't know how to get the right value, it seems to be in
- // GtkOptionMenuProps struct from gtkoptionmenu.c but we can't get
- // to it - maybe we can use gtk_option_menu_size_request() for this
- // somehow?
- //
- // This default value works only for the default GTK+ theme (i.e.
- // no theme at all) (FIXME)
- static const int widthChoiceIndicator = 35;
- ret.x += widthChoiceIndicator;
}
- // but not less than the minimal width
- if ( ret.x < 80 )
+ // empty combobox should have some reasonable default size too
+ if ((GetCount() == 0) && (ret.x < 80))
ret.x = 80;
- ret.y = 16 + gdk_char_height(GET_STYLE_FONT( m_widget->style ), 'H');
-
+ CacheBestSize(ret);
return ret;
}
-#endif // wxUSE_CHOICE
+void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style)
+{
+ gtk_widget_modify_style(m_widget, style);
+ gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
+}
+
+
+// static
+wxVisualAttributes
+wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+ return GetDefaultAttributesFromGTKWidget(gtk_combo_box_new);
+}
+
+#endif // wxUSE_CHOICE || wxUSE_COMBOBOX
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