/////////////////////////////////////////////////////////////////////////////
-// Name: choice.cpp
+// Name: src/gtk/choice.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "choice.h"
-#endif
-
-#include "wx/defs.h"
+#include "wx/wxprec.h"
#if wxUSE_CHOICE
#include "wx/choice.h"
-#include "wx/arrstr.h"
-#include "wx/gtk/private.h"
+#ifndef WX_PRECOMP
+ #include "wx/arrstr.h"
+#endif
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
+// FIXME: We use GtkOptionMenu which has been deprecated since GTK+ 2.3.0 in
+// favour of GtkComboBox.
+// Later use GtkComboBox if GTK+ runtime version is new enough.
+#include <gtk/gtkversion.h>
+#if defined(GTK_DISABLE_DEPRECATED) && GTK_CHECK_VERSION(2,3,0)
+#undef GTK_DISABLE_DEPRECATED
+#endif
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#include "wx/gtk/private.h"
//-----------------------------------------------------------------------------
// data
// "activate"
//-----------------------------------------------------------------------------
+extern "C" {
static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
{
- if (g_isIdle)
- wxapp_install_idle_handler();
-
if (!choice->m_hasVMT) return;
if (g_blockEventsOnDrag) return;
+ int selection = wxNOT_FOUND;
+
+ selection = gtk_option_menu_get_history( GTK_OPTION_MENU(choice->GetHandle()) );
+
+ choice->m_selection_hack = selection;
+
wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
int n = choice->GetSelection();
else if ( choice->HasClientUntypedData() )
event.SetClientData( choice->GetClientData(n) );
- choice->GetEventHandler()->ProcessEvent(event);
+ choice->HandleWindowEvent(event);
+}
}
//-----------------------------------------------------------------------------
// wxChoice
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
wxChoice::wxChoice()
{
int n, const wxString choices[],
long style, const wxValidator& validator, const wxString &name )
{
- m_needParent = TRUE;
-#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;
+ 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;
}
+ // If we have items, GTK will choose the first item by default
+ m_selection_hack = n > 0 ? 0 : wxNOT_FOUND;
+
GtkWidget *menu = gtk_menu_new();
- for (int i = 0; i < n; i++)
+ for (unsigned int i = 0; i < (unsigned int)n; i++)
{
GtkAddHelper(menu, i, choices[i]);
}
m_parent->DoAddChild( this );
PostCreation(size);
- SetBestSize(size); // need this too because this is a wxControlWithItems
+ SetInitialSize(size); // need this too because this is a wxControlWithItems
+
+ // workaround for bug in gtk_option_menu_set_history(), it causes
+ // gtk_widget_size_allocate() to be called with the current
+ // widget->allocation values, which will be zero if a proper
+ // size_allocate has not occured yet
+ m_widget->allocation.width = m_width;
+ m_widget->allocation.height = m_height;
- return TRUE;
+ return true;
}
wxChoice::~wxChoice()
delete m_strings;
}
-int wxChoice::DoAppend( const wxString &item )
-{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
-
- GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
-
- return GtkAddHelper(menu, GetCount(), item);
-}
-
-int wxChoice::DoInsert( const wxString &item, int pos )
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData, wxClientDataType type)
{
wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") );
- wxCHECK_MSG( (pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
- if (pos == GetCount())
- return DoAppend(item);
+ const unsigned int count = items.GetCount();
GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
- return GtkAddHelper(menu, pos, item);
-}
-
-void wxChoice::DoSetItemClientData( int n, void* clientData )
-{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
-
- wxList::compatibility_iterator node = m_clientList.Item( n );
- wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") );
+ for ( unsigned int i = 0; i < count; ++i, ++pos )
+ {
+ int n = GtkAddHelper(menu, pos, items[i]);
+ if ( n == wxNOT_FOUND )
+ return n;
- node->SetData( (wxObject*) clientData );
-}
+ AssignNewItemClientData(n, clientData, i, type);
+ }
-void* wxChoice::DoGetItemClientData( int n ) const
-{
- wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") );
+ // if the item to insert is at or before the selection, and the selection is valid
+ if (((int)pos <= m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+ {
+ // move the selection forward
+ m_selection_hack += count;
+ }
- wxList::compatibility_iterator node = m_clientList.Item( n );
- wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") );
+ // We must set the selection so that it can be read back even if
+ // the user has not modified it since GTK+ will then select the
+ // first item so well return 0.
+ if ((count > 0) && (m_selection_hack==wxNOT_FOUND))
+ m_selection_hack = 0;
- return node->GetData();
+ return pos - 1;
}
-void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
{
- wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") );
-
- wxList::compatibility_iterator node = m_clientList.Item( n );
- wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") );
-
- // wxItemContainer already deletes data for us
-
- node->SetData( (wxObject*) clientData );
+ m_clientData[n] = clientData;
}
-wxClientData* wxChoice::DoGetItemClientObject( int n ) const
+void* wxChoice::DoGetItemClientData(unsigned int n) const
{
- wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") );
-
- wxList::compatibility_iterator node = m_clientList.Item( n );
- wxCHECK_MSG( node, (wxClientData *)NULL,
- wxT("invalid index in wxChoice::DoGetItemClientObject") );
-
- return (wxClientData*) node->GetData();
+ return m_clientData[n];
}
-void wxChoice::Clear()
+void wxChoice::DoClear()
{
wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
GtkWidget *menu = gtk_menu_new();
gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
- 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!
- wxList::compatibility_iterator node = m_clientList.GetFirst();
- while ( node )
- {
- delete (wxClientData *)node->GetData();
- node = node->GetNext();
- }
- }
- m_clientList.Clear();
+ m_clientData.Clear();
if ( m_strings )
m_strings->Clear();
+
+ // begin with no selection
+ m_selection_hack = wxNOT_FOUND;
}
-void wxChoice::Delete( int n )
+void wxChoice::DoDeleteOneItem(unsigned int n)
{
wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
+ wxCHECK_RET( IsValid(n), _T("invalid index in wxChoice::Delete") );
+
+ // if the item to delete is before the selection, and the selection is valid
+ if (((int)n < m_selection_hack) && (m_selection_hack != wxNOT_FOUND))
+ {
+ // move the selection back one
+ m_selection_hack--;
+ }
+ else if ((int)n == m_selection_hack)
+ {
+ // invalidate the selection
+ m_selection_hack = wxNOT_FOUND;
+ }
// VZ: apparently GTK+ doesn't have a built-in function to do it (not even
// in 2.0), hence this dumb implementation -- still better than nothing
- int i,
- count = GetCount();
-
- wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") );
-
- const bool hasClientData = m_clientDataItemsType != wxClientData_None;
- const bool hasObjectData = m_clientDataItemsType == wxClientData_Object;
-
- wxList::compatibility_iterator node = m_clientList.GetFirst();
+ const unsigned int count = GetCount();
wxArrayString items;
wxArrayPtrVoid itemsData;
- items.Alloc(count);
- for ( i = 0; i < count; i++ )
+ items.Alloc(count - 1);
+ itemsData.Alloc(count - 1);
+ for ( unsigned i = 0; i < count; i++ )
{
if ( i != n )
{
items.Add(GetString(i));
- if ( hasClientData )
- {
- // also save the client data
- itemsData.Add(node->GetData());
- }
- }
- else // need to delete the client object too
- {
- if ( hasObjectData )
- {
- delete (wxClientData *)node->GetData();
- }
- }
-
- if ( hasClientData )
- {
- node = node->GetNext();
+ itemsData.Add(m_clientData[i]);
}
}
- if ( hasObjectData )
- {
- // prevent Clear() from destroying all client data
- m_clientDataItemsType = wxClientData_None;
- }
-
- Clear();
+ wxChoice::DoClear();
- for ( i = 0; i < count - 1; i++ )
+ if ( count > 1 )
{
- Append(items[i]);
-
- if ( hasObjectData )
- SetClientObject(i, (wxClientData *)itemsData[i]);
- else if ( hasClientData )
- SetClientData(i, itemsData[i]);
+ void ** const data = &itemsData[0];
+ if ( HasClientObjectData() )
+ Append(items, wx_reinterpret_cast(wxClientData **, data));
+ else
+ Append(items, data);
}
+ //else: the control is now empty, nothing to append
}
-int wxChoice::FindString( const wxString &string ) const
+int wxChoice::FindString( const wxString &string, bool bCase ) const
{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
+ wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") );
// If you read this code once and you think you understand
// it, then you are very wrong. Robert Roebling.
if (bin->child)
label = GTK_LABEL(bin->child);
if (!label)
- label = GTK_LABEL( BUTTON_CHILD(m_widget) );
+ label = GTK_LABEL(GTK_BIN(m_widget)->child);
wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
-#ifdef __WXGTK20__
wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
- wxString tmp( label->label );
-#endif
- if (string == tmp)
+ if (string.IsSameAs( tmp, bCase ))
return count;
child = child->next;
count++;
}
- return -1;
+ return wxNOT_FOUND;
}
int wxChoice::GetSelection() const
{
- wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") );
-
-#ifdef __WXGTK20__
-
- return gtk_option_menu_get_history( GTK_OPTION_MENU(m_widget) );
-
-#else
- GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
+ wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") );
- GList *child = menu_shell->children;
- while (child)
- {
- GtkBin *bin = GTK_BIN( child->data );
- if (!bin->child) return count;
- child = child->next;
- count++;
- }
+ return m_selection_hack;
- return -1;
-#endif
}
-void wxChoice::SetString( int n, const wxString& str )
+void wxChoice::SetString(unsigned int n, const wxString& str)
{
wxCHECK_RET( m_widget != NULL, wxT("invalid choice") );
GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
+ unsigned int count = 0;
GList *child = menu_shell->children;
while (child)
{
if (bin->child)
label = GTK_LABEL(bin->child);
if (!label)
- label = GTK_LABEL( BUTTON_CHILD(m_widget) );
+ label = GTK_LABEL(GTK_BIN(m_widget)->child);
wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
- gtk_label_set_text( label, wxGTK_CONV( str ) );
+ gtk_label_set_text( label, wxGTK_CONV( str ) );
+ InvalidateBestSize();
+
return;
}
child = child->next;
}
}
-wxString wxChoice::GetString( int n ) const
+wxString wxChoice::GetString(unsigned int n) const
{
- wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") );
+ wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid choice") );
GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
- int count = 0;
+ unsigned int count = 0;
GList *child = menu_shell->children;
while (child)
{
if (bin->child)
label = GTK_LABEL(bin->child);
if (!label)
- label = GTK_LABEL( BUTTON_CHILD(m_widget) );
+ label = GTK_LABEL(GTK_BIN(m_widget)->child);
wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") );
-#ifdef __WXGTK20__
return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) );
-#else
- return wxString( label->label );
-#endif
}
child = child->next;
count++;
wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") );
- return wxT("");
+ return wxEmptyString;
}
-int wxChoice::GetCount() const
+unsigned int wxChoice::GetCount() const
{
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;
+ unsigned int count = 0;
GList *child = menu_shell->children;
while (child)
{
int tmp = n;
gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
+
+ // set the local selection variable manually
+ if ((n >= 0) && ((unsigned int)n < GetCount()))
+ {
+ // a valid selection has been made
+ m_selection_hack = n;
+ }
+ else if ((n == wxNOT_FOUND) || (GetCount() == 0))
+ {
+ // invalidates the selection if there are no items
+ // or if it is specifically set to wxNOT_FOUND
+ m_selection_hack = wxNOT_FOUND;
+ }
+ else
+ {
+ // this selects the first item by default if the selection is out of bounds
+ m_selection_hack = 0;
+ }
}
-void wxChoice::ApplyWidgetStyle()
+void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style)
{
- 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 );
+ gtk_widget_modify_style( m_widget, style );
+ gtk_widget_modify_style( GTK_WIDGET( menu_shell ), style );
GList *child = menu_shell->children;
while (child)
{
- gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
+ gtk_widget_modify_style( GTK_WIDGET( child->data ), style );
GtkBin *bin = GTK_BIN( child->data );
GtkWidget *label = (GtkWidget *) NULL;
if (bin->child)
label = bin->child;
if (!label)
- label = BUTTON_CHILD(m_widget);
+ label = GTK_BIN(m_widget)->child;
- gtk_widget_set_style( label, m_widgetStyle );
+ gtk_widget_modify_style( label, style );
child = child->next;
}
}
-int wxChoice::GtkAddHelper(GtkWidget *menu, int pos, const wxString& item)
+int wxChoice::GtkAddHelper(GtkWidget *menu, unsigned int pos, const wxString& item)
{
- wxCHECK_MSG((pos>=0) && (pos<=(int)m_clientList.GetCount()), -1, wxT("invalid index"));
+ wxCHECK_MSG(pos<=m_clientData.GetCount(), -1, wxT("invalid index"));
GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) );
- 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 );
- }
+ pos = m_strings->Add(item);
}
+
+ // don't call wxChoice::GetCount() from here because it doesn't work
+ // if we're called from ctor (and GtkMenuShell is still NULL)
+ if (pos == m_clientData.GetCount())
+ gtk_menu_shell_append( GTK_MENU_SHELL(menu), menu_item );
else
- {
- // don't call wxChoice::GetCount() from here because it doesn't work
- // if we're called from ctor (and GtkMenuShell is still NULL)
+ gtk_menu_shell_insert( GTK_MENU_SHELL(menu), menu_item, pos );
- // normal control, just append
- if (pos == (int)m_clientList.GetCount())
- {
- gtk_menu_append( GTK_MENU(menu), menu_item );
- m_clientList.Append( (wxObject*) NULL );
- index = m_clientList.GetCount() - 1;
- }
- else
- {
- gtk_menu_insert( GTK_MENU(menu), menu_item, pos );
- m_clientList.Insert( pos, (wxObject*) NULL );
- index = pos;
- }
- }
+ m_clientData.Insert( NULL, pos );
if (GTK_WIDGET_REALIZED(m_widget))
{
gtk_widget_realize( menu_item );
gtk_widget_realize( GTK_BIN(menu_item)->child );
- if (m_widgetStyle) ApplyWidgetStyle();
+ ApplyWidgetStyle();
}
- gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
- GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
+ // The best size of a wxChoice should probably
+ // be changed everytime the control has been
+ // changed, but at least after adding an item
+ // it has to change. Adapted from Matt Ownby.
+ InvalidateBestSize();
+
+ g_signal_connect_after (menu_item, "activate",
+ G_CALLBACK (gtk_choice_clicked_callback),
+ this);
gtk_widget_show( menu_item );
// return the index of the item in the control
- return index;
+ return pos;
}
wxSize wxChoice::DoGetBestSize() const
if ( m_widget )
{
int width;
- size_t count = GetCount();
- for ( size_t n = 0; n < count; n++ )
+ unsigned int count = GetCount();
+ for ( unsigned int n = 0; n < count; n++ )
{
GetTextExtent( GetString(n), &width, NULL, NULL, NULL );
if ( width > ret.x )
if (ret.y <= 18)
ret.y = 8 + GetCharHeight();
+ CacheBestSize(ret);
return ret;
}
-bool wxChoice::IsOwnGtkWindow( GdkWindow *window )
+GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
{
-#ifdef __WXGTK20__
return GTK_BUTTON(m_widget)->event_window;
-#else
- return (window == m_widget->window);
-#endif
}
// static
#endif // wxUSE_CHOICE
-
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