Files
wxWidgets/src/gtk1/listbox.cpp
Robert Roebling e2762ff06a wxListBox mouse events now report coords relative
to the whole list box.
  wxRadioButton doesn't emit any event when unpressed.
  Similar correction to wxRadioBox and wxToggleButton.
  Upported change to wxMenuEvent so that the id is
     set in the constructor. Otherwise the EVT_MENU
     macro is pretty useless. Already in 2.2.8.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12358 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-11-08 23:24:16 +00:00

1084 lines
29 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: listbox.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "listbox.h"
#endif
#include "wx/listbox.h"
#if wxUSE_LISTBOX
#include "wx/dynarray.h"
#include "wx/utils.h"
#include "wx/intl.h"
#include "wx/checklst.h"
#include "wx/settings.h"
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
#endif
#include <gdk/gdk.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
//-----------------------------------------------------------------------------
// idle system
//-----------------------------------------------------------------------------
extern void wxapp_install_idle_handler();
extern bool g_isIdle;
//-------------------------------------------------------------------------
// conditional compilation
//-------------------------------------------------------------------------
#if (GTK_MINOR_VERSION > 0)
#define NEW_GTK_SCROLL_CODE
#endif
//-----------------------------------------------------------------------------
// private functions
//-----------------------------------------------------------------------------
#if wxUSE_CHECKLISTBOX
// checklistboxes have "[±] " prepended to their lables, this macro removes it
// (NB: 4 below is the length of wxCHECKLBOX_STRING above)
//
// the argument to it is a "const char *" pointer
#define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
#else // !wxUSE_CHECKLISTBOX
#define GET_REAL_LABEL(label) (label)
#endif // wxUSE_CHECKLISTBOX
//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------
extern bool g_blockEventsOnDrag;
extern bool g_blockEventsOnScroll;
extern wxCursor g_globalCursor;
static bool g_hasDoubleClicked = FALSE;
//-----------------------------------------------------------------------------
// idle callback for SetFirstItem
//-----------------------------------------------------------------------------
struct wxlistbox_idle_struct
{
wxListBox *m_listbox;
int m_item;
gint m_tag;
};
static gint wxlistbox_idle_callback( gpointer gdata )
{
wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
gdk_threads_enter();
gtk_idle_remove( data->m_tag );
data->m_listbox->SetFirstItem( data->m_item );
delete data;
gdk_threads_leave();
return TRUE;
}
//-----------------------------------------------------------------------------
// "button_release_event"
//-----------------------------------------------------------------------------
/* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
this can lead to race conditions so that we emit the dclick event
after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
static gint
gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
GdkEventButton * WXUNUSED(gdk_event),
wxListBox *listbox )
{
if (g_isIdle) wxapp_install_idle_handler();
if (g_blockEventsOnDrag) return FALSE;
if (g_blockEventsOnScroll) return FALSE;
if (!listbox->m_hasVMT) return FALSE;
if (!g_hasDoubleClicked) return FALSE;
wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
event.SetEventObject( listbox );
wxArrayInt aSelections;
int n, count = listbox->GetSelections(aSelections);
if ( count > 0 )
{
n = aSelections[0];
if ( listbox->HasClientObjectData() )
event.SetClientObject( listbox->GetClientObject(n) );
else if ( listbox->HasClientUntypedData() )
event.SetClientData( listbox->GetClientData(n) );
event.SetString( listbox->GetString(n) );
}
else
{
n = -1;
}
event.m_commandInt = n;
listbox->GetEventHandler()->ProcessEvent( event );
return FALSE;
}
//-----------------------------------------------------------------------------
// "button_press_event"
//-----------------------------------------------------------------------------
static gint
gtk_listbox_button_press_callback( GtkWidget *widget,
GdkEventButton *gdk_event,
wxListBox *listbox )
{
if (g_isIdle) wxapp_install_idle_handler();
if (g_blockEventsOnDrag) return FALSE;
if (g_blockEventsOnScroll) return FALSE;
if (!listbox->m_hasVMT) return FALSE;
int sel = listbox->GtkGetIndex( widget );
#if wxUSE_CHECKLISTBOX
if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
{
wxCheckListBox *clb = (wxCheckListBox *)listbox;
clb->Check( sel, !clb->IsChecked(sel) );
wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
event.SetEventObject( listbox );
event.SetInt( sel );
listbox->GetEventHandler()->ProcessEvent( event );
}
#endif // wxUSE_CHECKLISTBOX
/* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
return FALSE;
}
//-----------------------------------------------------------------------------
// "key_press_event"
//-----------------------------------------------------------------------------
static gint
gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
{
if (g_isIdle)
wxapp_install_idle_handler();
if (g_blockEventsOnDrag)
return FALSE;
bool ret = FALSE;
if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
{
wxNavigationKeyEvent new_event;
/* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
/* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
new_event.SetCurrentFocus( listbox );
ret = listbox->GetEventHandler()->ProcessEvent( new_event );
}
if ((gdk_event->keyval == GDK_Return) && (!ret))
{
// eat return in all modes
ret = TRUE;
}
#if wxUSE_CHECKLISTBOX
if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
{
int sel = listbox->GtkGetIndex( widget );
wxCheckListBox *clb = (wxCheckListBox *)listbox;
clb->Check( sel, !clb->IsChecked(sel) );
wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
new_event.SetEventObject( listbox );
new_event.SetInt( sel );
ret = listbox->GetEventHandler()->ProcessEvent( new_event );
}
#endif // wxUSE_CHECKLISTBOX
if (ret)
{
gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
return TRUE;
}
return FALSE;
}
//-----------------------------------------------------------------------------
// "select" and "deselect"
//-----------------------------------------------------------------------------
static void gtk_listitem_select_cb( GtkWidget *widget, wxListBox *listbox, bool is_selection );
static void gtk_listitem_select_callback( GtkWidget *widget, wxListBox *listbox )
{
gtk_listitem_select_cb( widget, listbox, TRUE );
}
static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
{
gtk_listitem_select_cb( widget, listbox, FALSE );
}
static void gtk_listitem_select_cb( GtkWidget *widget, wxListBox *listbox, bool is_selection )
{
if (g_isIdle) wxapp_install_idle_handler();
if (!listbox->m_hasVMT) return;
if (g_blockEventsOnDrag) return;
wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
event.SetEventObject( listbox );
// MSW doesn't do that either
// event.SetExtraLong( (long) is_selection );
if ((listbox->GetWindowStyleFlag() & wxLB_SINGLE) != 0)
{
int sel = listbox->GtkGetIndex( widget );
if (listbox->m_prevSelection != sel)
gtk_list_unselect_item( listbox->m_list, listbox->m_prevSelection );
listbox->m_prevSelection = sel;
}
wxArrayInt aSelections;
int n, count = listbox->GetSelections(aSelections);
if ( count > 0 )
{
n = aSelections[0];
if ( listbox->HasClientObjectData() )
event.SetClientObject( listbox->GetClientObject(n) );
else if ( listbox->HasClientUntypedData() )
event.SetClientData( listbox->GetClientData(n) );
event.SetString( listbox->GetString(n) );
}
else
{
n = -1;
}
event.m_commandInt = n;
// No longer required with new code in wxLB_SINGLE
// listbox->GetEventHandler()->AddPendingEvent( event );
listbox->GetEventHandler()->ProcessEvent( event );
}
//-----------------------------------------------------------------------------
// wxListBox
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
// ----------------------------------------------------------------------------
// construction
// ----------------------------------------------------------------------------
wxListBox::wxListBox()
{
m_list = (GtkList *) NULL;
#if wxUSE_CHECKLISTBOX
m_hasCheckBoxes = FALSE;
#endif // wxUSE_CHECKLISTBOX
}
bool wxListBox::Create( wxWindow *parent, wxWindowID id,
const wxPoint &pos, const wxSize &size,
int n, const wxString choices[],
long style, const wxValidator& validator,
const wxString &name )
{
m_needParent = TRUE;
m_acceptsFocus = TRUE;
m_isListBox = TRUE;
m_prevSelection = 0; // or -1 ??
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, validator, name ))
{
wxFAIL_MSG( wxT("wxListBox creation failed") );
return FALSE;
}
m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
if (style & wxLB_ALWAYS_SB)
{
gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
}
else
{
gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
}
m_list = GTK_LIST( gtk_list_new() );
GtkSelectionMode mode;
if (style & wxLB_MULTIPLE)
{
mode = GTK_SELECTION_MULTIPLE;
}
else if (style & wxLB_EXTENDED)
{
mode = GTK_SELECTION_EXTENDED;
}
else
{
// if style was 0 set single mode
m_windowStyle |= wxLB_SINGLE;
mode = GTK_SELECTION_MULTIPLE;
}
gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
#ifdef NEW_GTK_SCROLL_CODE
gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
#else
gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
#endif
/* make list scroll when moving the focus down using cursor keys */
gtk_container_set_focus_vadjustment(
GTK_CONTAINER(m_list),
gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(m_widget)));
gtk_widget_show( GTK_WIDGET(m_list) );
SetBestSize( size );
if ( style & wxLB_SORT )
{
// this will change DoAppend() behaviour
m_strings = new wxSortedArrayString;
}
else
{
m_strings = (wxSortedArrayString *)NULL;
}
for (int i = 0; i < n; i++)
{
// add one by one
DoAppend(choices[i]);
}
m_parent->DoAddChild( this );
PostCreation();
SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
SetForegroundColour( parent->GetForegroundColour() );
SetFont( parent->GetFont() );
Show( TRUE );
return TRUE;
}
wxListBox::~wxListBox()
{
m_hasVMT = FALSE;
Clear();
if (m_strings)
delete m_strings;
}
void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
// VZ: notice that InsertItems knows nothing about sorting, so calling it
// from outside (and not from our own Append) is likely to break
// everything
// code elsewhere supposes we have as many items in m_clientList as items
// in the listbox
wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
wxT("bug in client data management") );
GList *children = m_list->children;
int length = g_list_length(children);
wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
size_t nItems = items.GetCount();
int index;
if (m_strings)
{
for (size_t n = 0; n < nItems; n++)
{
index = m_strings->Add( items[n] );
if (index != GetCount())
{
GtkAddItem( items[n], index );
wxNode *node = m_clientList.Nth( index );
m_clientList.Insert( node, (wxObject*) NULL );
}
else
{
GtkAddItem( items[n] );
m_clientList.Append( (wxObject*) NULL );
}
}
}
else
{
if (pos == length)
{
for ( size_t n = 0; n < nItems; n++ )
{
GtkAddItem( items[n] );
m_clientList.Append((wxObject *)NULL);
}
}
else
{
wxNode *node = m_clientList.Nth( pos );
for ( size_t n = 0; n < nItems; n++ )
{
GtkAddItem( items[n], pos+n );
m_clientList.Insert( node, (wxObject *)NULL );
}
}
}
wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
wxT("bug in client data management") );
}
int wxListBox::DoAppend( const wxString& item )
{
if (m_strings)
{
// need to determine the index
int index = m_strings->Add( item );
// only if not at the end anyway
if (index != GetCount())
{
GtkAddItem( item, index );
wxNode *node = m_clientList.Nth( index );
m_clientList.Insert( node, (wxObject *)NULL );
return index;
}
}
GtkAddItem(item);
m_clientList.Append((wxObject *)NULL);
return GetCount() - 1;
}
void wxListBox::GtkAddItem( const wxString &item, int pos )
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
GtkWidget *list_item;
wxString label(item);
#if wxUSE_CHECKLISTBOX
if (m_hasCheckBoxes)
{
label.Prepend(wxCHECKLBOX_STRING);
}
#endif // wxUSE_CHECKLISTBOX
list_item = gtk_list_item_new_with_label( label.mbc_str() );
GList *gitem_list = g_list_alloc ();
gitem_list->data = list_item;
if (pos == -1)
gtk_list_append_items( GTK_LIST (m_list), gitem_list );
else
gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
gtk_signal_connect( GTK_OBJECT(list_item), "select",
GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
if (HasFlag(wxLB_MULTIPLE) || HasFlag(wxLB_EXTENDED))
gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
gtk_signal_connect( GTK_OBJECT(list_item),
"button_press_event",
(GtkSignalFunc)gtk_listbox_button_press_callback,
(gpointer) this );
gtk_signal_connect_after( GTK_OBJECT(list_item),
"button_release_event",
(GtkSignalFunc)gtk_listbox_button_release_callback,
(gpointer) this );
gtk_signal_connect( GTK_OBJECT(list_item),
"key_press_event",
(GtkSignalFunc)gtk_listbox_key_press_callback,
(gpointer)this );
ConnectWidget( list_item );
gtk_widget_show( list_item );
if (GTK_WIDGET_REALIZED(m_widget))
{
gtk_widget_realize( list_item );
gtk_widget_realize( GTK_BIN(list_item)->child );
// Apply current widget style to the new list_item
if (m_widgetStyle)
{
gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
GtkBin *bin = GTK_BIN( list_item );
GtkWidget *label = GTK_WIDGET( bin->child );
gtk_widget_set_style( label, m_widgetStyle );
}
#if wxUSE_TOOLTIPS
if (m_tooltip) m_tooltip->Apply( this );
#endif
}
}
void wxListBox::DoSetItems( const wxArrayString& items,
void **clientData)
{
Clear();
DoInsertItems(items, 0);
if ( clientData )
{
size_t count = items.GetCount();
for ( size_t n = 0; n < count; n++ )
{
SetClientData(n, clientData[n]);
}
}
}
// ----------------------------------------------------------------------------
// client data
// ----------------------------------------------------------------------------
void wxListBox::DoSetItemClientData( int n, void* clientData )
{
wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
wxNode *node = m_clientList.Nth( n );
wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
node->SetData( (wxObject*) clientData );
}
void* wxListBox::DoGetItemClientData( int n ) const
{
wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
wxNode *node = m_clientList.Nth( n );
wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
return node->Data();
}
void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
{
wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
wxNode *node = m_clientList.Nth( n );
wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
wxClientData *cd = (wxClientData*) node->Data();
delete cd;
node->SetData( (wxObject*) clientData );
}
wxClientData* wxListBox::DoGetItemClientObject( int n ) const
{
wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
wxNode *node = m_clientList.Nth( n );
wxCHECK_MSG( node, (wxClientData *)NULL,
wxT("invalid index in wxListBox::DoGetItemClientObject") );
return (wxClientData*) node->Data();
}
void wxListBox::Clear()
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
gtk_list_clear_items( m_list, 0, GetCount() );
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();
if ( m_strings )
m_strings->Clear();
}
void wxListBox::Delete( int n )
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
GList *child = g_list_nth( m_list->children, n );
wxCHECK_RET( child, wxT("wrong listbox index") );
GList *list = g_list_append( (GList*) NULL, child->data );
gtk_list_remove_items( m_list, list );
g_list_free( list );
wxNode *node = m_clientList.Nth( n );
if ( node )
{
if ( m_clientDataItemsType == wxClientData_Object )
{
wxClientData *cd = (wxClientData*)node->Data();
delete cd;
}
m_clientList.DeleteNode( node );
}
if ( m_strings )
m_strings->Remove(n);
}
// ----------------------------------------------------------------------------
// string list access
// ----------------------------------------------------------------------------
void wxListBox::SetString( int n, const wxString &string )
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
GList *child = g_list_nth( m_list->children, n );
if (child)
{
GtkBin *bin = GTK_BIN( child->data );
GtkLabel *label = GTK_LABEL( bin->child );
wxString str;
#if wxUSE_CHECKLISTBOX
if (m_hasCheckBoxes)
str += wxCHECKLBOX_STRING;
#endif // wxUSE_CHECKLISTBOX
str += string;
gtk_label_set( label, str.mbc_str() );
}
else
{
wxFAIL_MSG(wxT("wrong listbox index"));
}
}
wxString wxListBox::GetString( int n ) const
{
wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
GList *child = g_list_nth( m_list->children, n );
if (child)
{
GtkBin *bin = GTK_BIN( child->data );
GtkLabel *label = GTK_LABEL( bin->child );
wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
return str;
}
wxFAIL_MSG(wxT("wrong listbox index"));
return wxT("");
}
int wxListBox::GetCount() const
{
wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
GList *children = m_list->children;
return g_list_length(children);
}
int wxListBox::FindString( const wxString &item ) const
{
wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
GList *child = m_list->children;
int count = 0;
while (child)
{
GtkBin *bin = GTK_BIN( child->data );
GtkLabel *label = GTK_LABEL( bin->child );
wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
if (str == item)
return count;
count++;
child = child->next;
}
// it's not an error if the string is not found -> no wxCHECK
return wxNOT_FOUND;
}
// ----------------------------------------------------------------------------
// selection
// ----------------------------------------------------------------------------
int wxListBox::GetSelection() const
{
wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
GList *child = m_list->children;
int count = 0;
while (child)
{
if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
count++;
child = child->next;
}
return -1;
}
int wxListBox::GetSelections( wxArrayInt& aSelections ) const
{
wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
// get the number of selected items first
GList *child = m_list->children;
int count = 0;
for (child = m_list->children; child != NULL; child = child->next)
{
if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
count++;
}
aSelections.Empty();
if (count > 0)
{
// now fill the list
aSelections.Alloc(count); // optimization attempt
int i = 0;
for (child = m_list->children; child != NULL; child = child->next, i++)
{
if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
aSelections.Add(i);
}
}
return count;
}
bool wxListBox::IsSelected( int n ) const
{
wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
GList *target = g_list_nth( m_list->children, n );
wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
}
void wxListBox::SetSelection( int n, bool select )
{
wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
GtkDisableEvents();
if (select)
{
if ((m_windowStyle & wxLB_SINGLE) != 0)
gtk_list_unselect_item( m_list, m_prevSelection );
gtk_list_select_item( m_list, n );
m_prevSelection = n;
}
else
gtk_list_unselect_item( m_list, n );
GtkEnableEvents();
}
void wxListBox::DoSetFirstItem( int n )
{
wxCHECK_RET( m_list, wxT("invalid listbox") );
if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
return;
// terribly efficient
const gchar *vadjustment_key = "gtk-vadjustment";
guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
GtkAdjustment *adjustment =
(GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
wxCHECK_RET( adjustment, wxT("invalid listbox code") );
GList *target = g_list_nth( m_list->children, n );
wxCHECK_RET( target, wxT("invalid listbox index") );
GtkWidget *item = GTK_WIDGET(target->data);
wxCHECK_RET( item, wxT("invalid listbox code") );
if (item->allocation.y == -1)
{
wxlistbox_idle_struct* data = new wxlistbox_idle_struct;
data->m_listbox = this;
data->m_item = n;
data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
return;
}
float y = item->allocation.y;
if (y > adjustment->upper - adjustment->page_size)
y = adjustment->upper - adjustment->page_size;
gtk_adjustment_set_value( adjustment, y );
}
// ----------------------------------------------------------------------------
// helpers
// ----------------------------------------------------------------------------
int wxListBox::GtkGetIndex( GtkWidget *item ) const
{
if (item)
{
GList *child = m_list->children;
int count = 0;
while (child)
{
if (GTK_WIDGET(child->data) == item) return count;
count++;
child = child->next;
}
}
return -1;
}
#if wxUSE_TOOLTIPS
void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
{
GList *child = m_list->children;
while (child)
{
gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
child = child->next;
}
}
#endif // wxUSE_TOOLTIPS
void wxListBox::GtkDisableEvents()
{
GList *child = m_list->children;
while (child)
{
gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
if (HasFlag(wxLB_MULTIPLE) || HasFlag(wxLB_EXTENDED))
gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
child = child->next;
}
}
void wxListBox::GtkEnableEvents()
{
GList *child = m_list->children;
while (child)
{
gtk_signal_connect( GTK_OBJECT(child->data), "select",
GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
if (HasFlag(wxLB_MULTIPLE) || HasFlag(wxLB_EXTENDED))
gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
child = child->next;
}
}
GtkWidget *wxListBox::GetConnectWidget()
{
return GTK_WIDGET(m_list);
}
bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
{
if (GTK_WIDGET(m_list)->window == window) return TRUE;
GList *child = m_list->children;
while (child)
{
GtkWidget *bin = GTK_WIDGET( child->data );
if (bin->window == window) return TRUE;
child = child->next;
}
return FALSE;
}
void wxListBox::ApplyWidgetStyle()
{
SetWidgetStyle();
if (m_backgroundColour.Ok())
{
GdkWindow *window = GTK_WIDGET(m_list)->window;
if ( window )
{
m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
gdk_window_set_background( window, m_backgroundColour.GetColor() );
gdk_window_clear( window );
}
}
GList *child = m_list->children;
while (child)
{
gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
GtkBin *bin = GTK_BIN( child->data );
GtkWidget *label = GTK_WIDGET( bin->child );
gtk_widget_set_style( label, m_widgetStyle );
child = child->next;
}
}
void wxListBox::OnInternalIdle()
{
wxCursor cursor = m_cursor;
if (g_globalCursor.Ok()) cursor = g_globalCursor;
if (GTK_WIDGET(m_list)->window && cursor.Ok())
{
/* I now set the cursor the anew in every OnInternalIdle call
as setting the cursor in a parent window also effects the
windows above so that checking for the current cursor is
not possible. */
gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
GList *child = m_list->children;
while (child)
{
GtkBin *bin = GTK_BIN( child->data );
GtkWidget *label = GTK_WIDGET( bin->child );
if (!label->window)
break;
else
gdk_window_set_cursor( label->window, cursor.GetCursor() );
child = child->next;
}
}
UpdateWindowUI();
}
wxSize wxListBox::DoGetBestSize() const
{
int lbWidth = 100; // some defaults
int lbHeight = 110;
int wLine;
// Find the widest line
for(int i = 0; i < GetCount(); i++) {
wxString str(GetString(i));
GetTextExtent(str, &wLine, NULL);
lbWidth = wxMax(lbWidth, wLine);
}
// Add room for the scrollbar
lbWidth += wxSystemSettings::GetSystemMetric(wxSYS_VSCROLL_X);
// And just a bit more
int cx, cy;
GetTextExtent("X", &cx, &cy);
lbWidth += 3 * cx;
// don't make the listbox too tall (limit height to around 10 items) but don't
// make it too small neither
lbHeight = (cy+4) * wxMin(wxMax(GetCount(), 3), 10);
return wxSize(lbWidth, lbHeight);
}
#endif