/////////////////////////////////////////////////////////////////////////////
-// Name: choice.cpp
+// Name: src/gtk/choice.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+#include "wx/wxprec.h"
-#ifdef __GNUG__
-#pragma implementation "choice.h"
-#endif
+#if wxUSE_CHOICE || wxUSE_COMBOBOX
#include "wx/choice.h"
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#ifndef WX_PRECOMP
+ #include "wx/arrstr.h"
+#endif
-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
+#include "wx/gtk/private.h"
-extern bool g_blockEventsOnDrag;
-//-----------------------------------------------------------------------------
-// "activate"
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// GTK callbacks
+// ----------------------------------------------------------------------------
-static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
+extern "C" {
+
+static void
+gtk_choice_changed_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
{
- if (!choice->HasVMT()) return;
- if (g_blockEventsOnDrag) return;
-
- wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
- event.SetInt( choice->GetSelection() );
- wxString tmp( choice->GetStringSelection() );
- event.SetString( WXSTRINGCAST(tmp) );
- event.SetEventObject(choice);
- choice->GetEventHandler()->ProcessEvent(event);
+ choice->SendSelectionChangedEvent(wxEVT_COMMAND_CHOICE_SELECTED);
+}
+
}
//-----------------------------------------------------------------------------
// wxChoice
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
+
+void wxChoice::Init()
+{
+ m_strings = NULL;
+ m_stringCellIndex = 0;
+}
-wxChoice::wxChoice()
+bool wxChoice::Create( wxWindow *parent, wxWindowID id,
+ const wxPoint &pos, const wxSize &size,
+ const wxArrayString& choices,
+ long style, const wxValidator& validator,
+ const wxString &name )
{
+ 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 )
+ long style, const wxValidator& validator,
+ const wxString &name )
{
- m_needParent = TRUE;
-
- PreCreation( parent, id, pos, size, style, name );
-
- SetValidator( validator );
-
- m_widget = gtk_option_menu_new();
-
- wxSize newSize = size;
- if (newSize.x == -1) newSize.x = 80;
- if (newSize.y == -1) newSize.y = 26;
- SetSize( newSize.x, newSize.y );
-
- GtkWidget *menu = gtk_menu_new();
-
- for (int i = 0; i < n; i++)
+ if (!PreCreation( parent, pos, size ) ||
+ !CreateBase( parent, id, pos, size, style, validator, name ))
+ {
+ wxFAIL_MSG( wxT("wxChoice creation failed") );
+ return false;
+ }
+
+ if ( IsSorted() )
{
- m_clientDataList.Append( (wxObject*) NULL );
- m_clientObjectList.Append( (wxObject*) NULL );
-
- GtkWidget *item = gtk_menu_item_new_with_label( choices[i] );
- gtk_menu_append( GTK_MENU(menu), item );
-
- gtk_widget_realize( item );
- gtk_widget_realize( GTK_BIN(item)->child );
-
- gtk_widget_show( item );
-
- gtk_signal_connect( GTK_OBJECT( item ), "activate",
- GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
+ // if our m_strings != NULL, Append() will check for it and insert
+ // items in the correct order
+ m_strings = new wxSortedArrayString;
}
- gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
-
- m_parent->AddChild( this );
-
- (m_parent->m_insertCallback)( m_parent, this );
-
- PostCreation();
-
- SetBackgroundColour( parent->GetBackgroundColour() );
- SetForegroundColour( parent->GetForegroundColour() );
-
- Show( TRUE );
-
- return TRUE;
+
+ m_widget = gtk_combo_box_new_text();
+ g_object_ref(m_widget);
+
+ Append(n, choices);
+
+ m_parent->DoAddChild( this );
+
+ PostCreation(size);
+
+ g_signal_connect_after (m_widget, "changed",
+ G_CALLBACK (gtk_choice_changed_callback), this);
+
+ return true;
}
-
+
wxChoice::~wxChoice()
{
- Clear();
+ delete m_strings;
}
-void wxChoice::AppendCommon( const wxString &item )
+void wxChoice::SendSelectionChangedEvent(wxEventType evt_type)
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
-
- GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
- GtkWidget *menu_item = gtk_menu_item_new_with_label( item );
-
- gtk_menu_append( GTK_MENU(menu), menu_item );
-
- gtk_widget_realize( menu_item );
- gtk_widget_realize( GTK_BIN(menu_item)->child );
-
- if (m_widgetStyle) ApplyWidgetStyle();
-
- gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
- GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
-
- gtk_widget_show( menu_item );
-}
+ if (!m_hasVMT)
+ return;
-void wxChoice::Append( const wxString &item )
-{
- m_clientDataList.Append( (wxObject*) NULL );
- m_clientObjectList.Append( (wxObject*) NULL );
-
- AppendCommon( item );
-}
+ if (GetSelection() == -1)
+ return;
-void wxChoice::Append( const wxString &item, void *clientData )
-{
- m_clientDataList.Append( (wxObject*) clientData );
- m_clientObjectList.Append( (wxObject*) NULL );
-
- AppendCommon( item );
-}
+ wxCommandEvent event( evt_type, GetId() );
-void wxChoice::Append( const wxString &item, wxClientData *clientData )
-{
- m_clientObjectList.Append( (wxObject*) clientData );
- m_clientDataList.Append( (wxObject*) NULL );
-
- AppendCommon( item );
+ int n = GetSelection();
+ event.SetInt( n );
+ event.SetString( GetStringSelection() );
+ event.SetEventObject( this );
+ InitCommandEventWithItems( event, n );
+
+ HandleWindowEvent( event );
}
-void wxChoice::SetClientData( int n, void* clientData )
+void wxChoice::GTKInsertComboBoxTextItem( unsigned int n, const wxString& text )
{
- wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return;
-
- node->SetData( (wxObject*) clientData );
+ gtk_combo_box_insert_text( GTK_COMBO_BOX( m_widget ), n, wxGTK_CONV( text ) );
}
-void* wxChoice::GetClientData( int n )
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData, wxClientDataType type)
{
- wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return NULL;
-
- return node->Data();
+ wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid control") );
+
+ wxASSERT_MSG( !IsSorted() || (pos == GetCount()),
+ wxT("In a sorted choice data could only be appended"));
+
+ const int count = items.GetCount();
+
+ int n = wxNOT_FOUND;
+
+ 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]);
+
+ GTKInsertComboBoxTextItem( n, items[i] );
+
+ m_clientData.Insert( NULL, n );
+ AssignNewItemClientData(n, clientData, i, type);
+ }
+
+ InvalidateBestSize();
+
+ return n;
}
-void wxChoice::SetClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
{
- wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-
- wxNode *node = m_clientObjectList.Nth( n );
- if (!node) return;
-
- wxClientData *cd = (wxClientData*) node->Data();
- if (cd) delete cd;
-
- node->SetData( (wxObject*) clientData );
+ m_clientData[n] = clientData;
}
-wxClientData* wxChoice::GetClientObject( int n )
+void* wxChoice::DoGetItemClientData(unsigned int n) const
{
- wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, "invalid combobox" );
-
- wxNode *node = m_clientObjectList.Nth( n );
- if (!node) return (wxClientData*) NULL;
-
- return (wxClientData*) node->Data();
+ return m_clientData[n];
}
-
-void wxChoice::Clear()
+
+void wxChoice::DoClear()
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
-
- 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 );
-
- wxNode *node = m_clientObjectList.First();
- while (node)
- {
- wxClientData *cd = (wxClientData*)node->Data();
- if (cd) delete cd;
- node = node->Next();
- }
- m_clientObjectList.Clear();
-
- m_clientDataList.Clear();
+ wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
+
+ DisableEvents();
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ GtkTreeModel* model = gtk_combo_box_get_model( combobox );
+ gtk_list_store_clear(GTK_LIST_STORE(model));
+
+ m_clientData.Clear();
+
+ if (m_strings)
+ m_strings->Clear();
+
+ EnableEvents();
+
+ InvalidateBestSize();
}
-void wxChoice::Delete( int WXUNUSED(n) )
+void wxChoice::DoDeleteOneItem(unsigned int n)
{
- wxFAIL_MSG( "wxChoice:Delete not implemented" );
+ 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 );
+
+ InvalidateBestSize();
}
-int wxChoice::FindString( const wxString &string ) const
+int wxChoice::FindString( const wxString &item, bool bCase ) const
{
- wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
-
- // If you read this code once and you think you understand
- // it, then you are very wrong. Robert Roebling.
-
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
+ 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( GTK_BUTTON(m_widget)->child );
-
- wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-
- if (string == label->label) return count;
- child = child->next;
- count++;
+ 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 (item.IsSameAs( str, bCase ) )
+ return count;
+
+ count++;
}
-
- wxFAIL_MSG( "wxChoice: string not found" );
-
- return -1;
+ while ( gtk_tree_model_iter_next(model, &iter) );
+
+ return wxNOT_FOUND;
}
-int wxChoice::GetColumns() const
+int wxChoice::GetSelection() const
{
- return 1;
+ return gtk_combo_box_get_active( GTK_COMBO_BOX( m_widget ) );
}
-int wxChoice::GetSelection()
+void wxChoice::SetString(unsigned int n, const wxString &text)
{
- wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
+ wxCHECK_RET( m_widget != NULL, 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)
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ wxCHECK_RET( IsValid(n), wxT("invalid index") );
+
+ 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 (!bin->child) return count;
- 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( "wxChoice: no selection" );
-
- return -1;
+
+ InvalidateBestSize();
}
-wxString wxChoice::GetString( int n ) const
+wxString wxChoice::GetString(unsigned int n) const
{
- wxCHECK_MSG( m_widget != NULL, "", "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))
{
- 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( GTK_BUTTON(m_widget)->child );
-
- wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-
- return label->label;
- }
- child = child->next;
- count++;
+ 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;
}
-
- wxFAIL_MSG( "wxChoice: string not found" );
-
- return "";
+
+ return str;
}
-wxString wxChoice::GetStringSelection() const
+unsigned int wxChoice::GetCount() const
{
- wxCHECK_MSG( m_widget != NULL, "", "invalid choice" );
-
- GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
-
- wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-
- return label->label;
+ 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;
}
-int wxChoice::Number() const
+void wxChoice::SetSelection( int n )
{
- wxCHECK_MSG( m_widget != NULL, 0, "invalid choice" );
+ wxCHECK_RET( m_widget != NULL, 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)
- {
- count++;
- child = child->next;
- }
- return count;
+ DisableEvents();
+
+ GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+ gtk_combo_box_set_active( combobox, n );
+
+ EnableEvents();
}
-void wxChoice::SetColumns( int WXUNUSED(n) )
+void wxChoice::SetColumns(int n)
{
+ gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(m_widget), n);
}
-void wxChoice::SetSelection( int n )
+int wxChoice::GetColumns() const
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
+ // 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;
+}
- int tmp = n;
- gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
-
- gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
+
+void wxChoice::DisableEvents()
+{
+ g_signal_handlers_block_by_func(m_widget,
+ (gpointer) gtk_choice_changed_callback, this);
}
-void wxChoice::SetStringSelection( const wxString &string )
+void wxChoice::EnableEvents()
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
+ g_signal_handlers_unblock_by_func(m_widget,
+ (gpointer) gtk_choice_changed_callback, this);
+}
- int n = FindString( string );
- if (n != -1) SetSelection( n );
+
+GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
+{
+ return m_widget->window;
}
-void wxChoice::ApplyWidgetStyle()
+// 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
{
- 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 );
-
- GList *child = menu_shell->children;
- while (child)
+ // 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
+ // in the combobox
+ if ( m_widget )
{
- 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 = GTK_BUTTON(m_widget)->child;
-
- gtk_widget_set_style( label, m_widgetStyle );
-
- child = child->next;
+ ret.x = GetCount() > 0 ? 0 : 60; // start with something "sensible"
+ int width;
+ unsigned int count = GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
+ {
+ 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;
+ }
}
+
+ // empty combobox should have some reasonable default size too
+ if ((GetCount() == 0) && (ret.x < 80))
+ ret.x = 80;
+
+ CacheBestSize(ret);
+ return ret;
+}
+
+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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