// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#pragma implementation "choice.h"
#endif
+#include "wx/defs.h"
+
+#if wxUSE_CHOICE
+
#include "wx/choice.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------
static void gtk_choice_clicked_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);
+ 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->GetEventHandler()->ProcessEvent(event);
}
//-----------------------------------------------------------------------------
wxChoice::wxChoice()
{
+ m_strings = (wxSortedArrayString *)NULL;
}
bool wxChoice::Create( wxWindow *parent, wxWindowID id,
long style, const wxValidator& validator, const wxString &name )
{
m_needParent = TRUE;
-
- PreCreation( parent, id, pos, size, style, name );
-
- SetValidator( validator );
+#if (GTK_MINOR_VERSION > 0)
+ m_acceptsFocus = TRUE;
+#endif
+
+ if (!PreCreation( parent, pos, size ) ||
+ !CreateBase( parent, id, pos, size, style, validator, name ))
+ {
+ wxFAIL_MSG( wxT("wxChoice creation failed") );
+ return FALSE;
+ }
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 );
-
+
+ if ( style & wxCB_SORT )
+ {
+ // if our m_strings != NULL, DoAppend() will check for it and insert
+ // items in the correct order
+ m_strings = new wxSortedArrayString;
+ }
+
GtkWidget *menu = gtk_menu_new();
-
+
for (int i = 0; i < n; i++)
{
- m_clientDataList.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 );
+ GtkAppendHelper(menu, choices[i]);
}
+
gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
-
- m_parent->AddChild( this );
- (m_parent->m_insertCallback)( m_parent, this );
-
+ m_parent->DoAddChild( this );
+
PostCreation();
-
+
+ SetFont( parent->GetFont() );
+
+ SetBestSize(size);
+
SetBackgroundColour( parent->GetBackgroundColour() );
SetForegroundColour( parent->GetForegroundColour() );
Show( TRUE );
-
+
return TRUE;
}
-
+
wxChoice::~wxChoice()
{
- wxNode *node = m_clientDataList.First();
- while (node)
- {
- wxClientData *cd = (wxClientData*)node->Data();
- if (cd) delete cd;
- node = node->Next();
- }
- m_clientDataList.Clear();
+ Clear();
+
+ delete m_strings;
}
-void wxChoice::AppendCommon( const wxString &item )
+int wxChoice::DoAppend( const wxString &item )
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
-
+ wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
+
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 );
-}
-void wxChoice::Append( const wxString &item )
-{
- m_clientDataList.Append( (wxObject*)NULL );
-
- AppendCommon( item );
+ return GtkAppendHelper(menu, item);
}
-void wxChoice::Append( const wxString &item, void *clientData )
+void wxChoice::DoSetItemClientData( int n, void* clientData )
{
- if (clientData)
- m_clientDataList.Append( (wxObject*) new wxVoidClientData( clientData ) );
- else
- m_clientDataList.Append( (wxObject*)NULL );
-
- AppendCommon( item );
-}
+ wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
-void wxChoice::Append( const wxString &item, wxClientData *clientData )
-{
- m_clientDataList.Append( (wxObject*) clientData );
-
- AppendCommon( item );
-}
+ wxNode *node = m_clientList.Nth( n );
+ wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
-void wxChoice::SetClientData( int n, void* clientData )
-{
- wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return;
-
- wxClientData *cd = (wxClientData*) node->Data();
- if (cd) delete cd;
-
- if (clientData)
- node->SetData( (wxObject*) new wxVoidClientData(clientData) );
- else
- node->SetData( (wxObject*) NULL );
+ node->SetData( (wxObject*) clientData );
}
-void* wxChoice::GetClientData( int n )
+void* wxChoice::DoGetItemClientData( int n ) const
{
- wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return NULL;
-
- wxVoidClientData *cd = (wxVoidClientData*) node->Data();
- if (cd)
- return cd->GetData();
- else
- return (void*) NULL;
+ 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();
}
-void wxChoice::SetClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
{
- wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return;
-
+ wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
+
+ wxNode *node = m_clientList.Nth( n );
+ wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
+
wxClientData *cd = (wxClientData*) node->Data();
- if (cd) delete cd;
-
+ delete cd;
+
node->SetData( (wxObject*) clientData );
}
-wxClientData* wxChoice::GetClientObject( int n )
+wxClientData* wxChoice::DoGetItemClientObject( int n ) const
{
- wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, "invalid combobox" );
-
- wxNode *node = m_clientDataList.Nth( n );
- if (!node) return (wxClientData*) NULL;
-
+ wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
+
+ wxNode *node = m_clientList.Nth( n );
+ wxCHECK_MSG( node, (wxClientData *)NULL,
+ wxT("invalid index in wxChoice::DoGetItemClientObject") );
+
return (wxClientData*) node->Data();
}
-
void wxChoice::Clear()
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
+ wxCHECK_RET( m_widget != NULL, wxT("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_clientDataList.First();
- while (node)
+
+ if ( HasClientObjectData() )
{
- wxClientData *cd = (wxClientData*)node->Data();
- if (cd) delete cd;
- node = node->Next();
+ // 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_clientDataList.Clear();
+ m_clientList.Clear();
+
+ if ( m_strings )
+ m_strings->Clear();
}
void wxChoice::Delete( int WXUNUSED(n) )
{
- wxFAIL_MSG( "wxChoice:Delete not implemented" );
+ wxFAIL_MSG( wxT("wxChoice:Delete not implemented") );
}
int wxChoice::FindString( const wxString &string ) const
{
- wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
+ wxCHECK_MSG( m_widget != NULL, -1, wxT("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) ) );
int count = 0;
GList *child = menu_shell->children;
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;
+
+ wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
+
+ if (string == wxString(label->label,*wxConvCurrent))
+ return count;
+
child = child->next;
count++;
}
-
- wxFAIL_MSG( "wxChoice: string not found" );
-
- return -1;
-}
-int wxChoice::GetColumns() const
-{
- return 1;
+ return -1;
}
-int wxChoice::GetSelection()
+int wxChoice::GetSelection() const
{
- wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
+ 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;
child = child->next;
count++;
}
-
- wxFAIL_MSG( "wxChoice: no selection" );
-
+
return -1;
}
+void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) )
+{
+ wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+
+ wxFAIL_MSG(wxT("not implemented"));
+}
+
wxString wxChoice::GetString( int n ) const
{
- wxCHECK_MSG( m_widget != NULL, "", "invalid choice" );
+ wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") );
GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
int count = 0;
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;
+
+ wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
+
+ return wxString(label->label,*wxConvCurrent);
}
child = child->next;
count++;
}
-
- wxFAIL_MSG( "wxChoice: string not found" );
-
- return "";
-}
-wxString wxChoice::GetStringSelection() const
-{
- wxCHECK_MSG( m_widget != NULL, "", "invalid choice" );
+ wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") );
- GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
-
- wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-
- return label->label;
+ return wxT("");
}
-int wxChoice::Number() const
+int wxChoice::GetCount() const
{
- wxCHECK_MSG( m_widget != NULL, 0, "invalid choice" );
+ wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") );
GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
int count = 0;
return count;
}
-void wxChoice::SetColumns( int WXUNUSED(n) )
-{
-}
-
void wxChoice::SetSelection( int n )
{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
+ wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
int tmp = n;
gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
-
- gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
-}
-
-void wxChoice::SetStringSelection( const wxString &string )
-{
- wxCHECK_RET( m_widget != NULL, "invalid choice" );
-
- int n = FindString( string );
- if (n != -1) SetSelection( n );
}
void wxChoice::ApplyWidgetStyle()
{
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)
{
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;
}
}
+size_t wxChoice::GtkAppendHelper(GtkWidget *menu, const wxString& item)
+{
+ 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 );
+
+ // 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;
+ }
+
+ if (GTK_WIDGET_REALIZED(m_widget))
+ {
+ 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 );
+
+ // return the index of the item in the control
+ return index;
+}
+
+wxSize wxChoice::DoGetBestSize() const
+{
+ wxSize ret( wxControl::DoGetBestSize() );
+
+ // we know better our horizontal extent: it depends on the longest string
+ // we have
+ ret.x = 0;
+ if ( m_widget )
+ {
+ GdkFont *font = m_font.GetInternalFont();
+
+ wxCoord width;
+ size_t count = GetCount();
+ 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;
+ }
+
+ // 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 )
+ ret.x = 80;
+
+ ret.y = 16 + gdk_char_height( m_widget->style->font, 'H' );
+ return ret;
+}
+
+#endif // wxUSE_CHOICE
+
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