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wxWidgets/src/gtk/notebook.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: notebook.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "notebook.h"
#endif
#include "wx/notebook.h"
#if wxUSE_NOTEBOOK
#include "wx/panel.h"
#include "wx/utils.h"
#include "wx/imaglist.h"
#include "wx/intl.h"
#include "wx/log.h"
#include <gdk/gdk.h>
#include <gtk/gtk.h>
#include "wx/gtk/win_gtk.h"
#include <gdk/gdkkeysyms.h>
//-----------------------------------------------------------------------------
// idle system
//-----------------------------------------------------------------------------
extern void wxapp_install_idle_handler();
extern bool g_isIdle;
//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------
extern bool g_blockEventsOnDrag;
//-----------------------------------------------------------------------------
// debug
//-----------------------------------------------------------------------------
#ifdef __WXDEBUG__
extern void debug_focus_in( GtkWidget* widget, const wxChar* name, const wxChar *window );
#endif
//-----------------------------------------------------------------------------
// wxGtkNotebookPage
//-----------------------------------------------------------------------------
class wxGtkNotebookPage: public wxObject
{
public:
wxGtkNotebookPage()
{
m_text = "";
m_image = -1;
m_page = (GtkNotebookPage *) NULL;
m_client = (wxNotebookPage *) NULL;
m_box = (GtkWidget *) NULL;
}
wxString m_text;
int m_image;
GtkNotebookPage *m_page;
GtkLabel *m_label;
wxNotebookPage *m_client;
GtkWidget *m_box; // in which the label and image are packed
};
//-----------------------------------------------------------------------------
// "switch_page"
//-----------------------------------------------------------------------------
static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
GtkNotebookPage *WXUNUSED(page),
gint page,
wxNotebook *notebook )
{
if (g_isIdle)
wxapp_install_idle_handler();
int old = notebook->GetSelection();
wxNotebookEvent event1( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
notebook->GetId(), page, old );
event1.SetEventObject( notebook );
if ((notebook->GetEventHandler()->ProcessEvent( event1 )) &&
!event1.IsAllowed() )
{
/* program doesn't allow the page change */
gtk_signal_emit_stop_by_name( GTK_OBJECT(notebook->m_widget), "switch_page" );
return;
}
wxNotebookEvent event2( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
notebook->GetId(), page, old );
event2.SetEventObject( notebook );
notebook->GetEventHandler()->ProcessEvent( event2 );
}
//-----------------------------------------------------------------------------
// "size_allocate"
//-----------------------------------------------------------------------------
static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
{
if (g_isIdle)
wxapp_install_idle_handler();
if ((win->m_x == alloc->x) &&
(win->m_y == alloc->y) &&
(win->m_width == alloc->width) &&
(win->m_height == alloc->height))
{
return;
}
win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
/* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
here in order to make repositioning after resizing to take effect. */
if ((gtk_major_version == 1) &&
(gtk_minor_version == 2) &&
(gtk_micro_version < 6) &&
(win->m_wxwindow) &&
(GTK_WIDGET_REALIZED(win->m_wxwindow)))
{
gtk_widget_size_allocate( win->m_wxwindow, alloc );
}
}
//-----------------------------------------------------------------------------
// "realize" from m_widget
//-----------------------------------------------------------------------------
static gint
gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
{
if (g_isIdle)
wxapp_install_idle_handler();
/* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
here in order to make repositioning before showing to take effect. */
gtk_widget_queue_resize( win->m_widget );
return FALSE;
}
//-----------------------------------------------------------------------------
// "key_press_event"
//-----------------------------------------------------------------------------
static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *win )
{
if (g_isIdle)
wxapp_install_idle_handler();
if (!win->m_hasVMT) return FALSE;
if (g_blockEventsOnDrag) return FALSE;
/* win is a control: tab can be propagated up */
if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
{
wxNode *node = win->m_pages.Nth( win->GetSelection() );
if (!node) return FALSE;
wxGtkNotebookPage *page = (wxGtkNotebookPage*) node->Data();
wxNavigationKeyEvent event;
event.SetEventObject( win );
/* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
event.SetDirection( (gdk_event->keyval == GDK_Tab) );
/* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
event.SetCurrentFocus( win );
if (!page->m_client->GetEventHandler()->ProcessEvent( event ))
{
page->m_client->SetFocus();
}
gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
return TRUE;
}
return FALSE;
}
//-----------------------------------------------------------------------------
// InsertChild callback for wxNotebook
//-----------------------------------------------------------------------------
static void wxInsertChildInNotebook( wxNotebook* WXUNUSED(parent), wxWindow* WXUNUSED(child) )
{
/* we don't do anything here but pray */
}
//-----------------------------------------------------------------------------
// wxNotebook
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
BEGIN_EVENT_TABLE(wxNotebook, wxControl)
EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
END_EVENT_TABLE()
void wxNotebook::Init()
{
m_imageList = (wxImageList *) NULL;
m_pages.DeleteContents( TRUE );
m_lastSelection = -1;
}
wxNotebook::wxNotebook()
{
Init();
}
wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size,
long style, const wxString& name )
{
Init();
Create( parent, id, pos, size, style, name );
}
wxNotebook::~wxNotebook()
{
/* don't generate change page events any more */
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
DeleteAllPages();
}
bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size,
long style, const wxString& name )
{
m_needParent = TRUE;
m_acceptsFocus = TRUE;
m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
{
wxFAIL_MSG( wxT("wxNoteBook creation failed") );
return FALSE;
}
m_widget = gtk_notebook_new();
#ifdef __WXDEBUG__
debug_focus_in( m_widget, wxT("wxNotebook::m_widget"), name );
#endif
gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
m_parent->DoAddChild( this );
if (m_windowStyle & wxNB_RIGHT)
gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
if (m_windowStyle & wxNB_LEFT)
gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
if (m_windowStyle & wxNB_BOTTOM)
gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
PostCreation();
SetFont( parent->GetFont() );
gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
Show( TRUE );
return TRUE;
}
int wxNotebook::GetSelection() const
{
wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
GList *pages = GTK_NOTEBOOK(m_widget)->children;
if (g_list_length(pages) == 0) return -1;
GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
if (notebook->cur_page == NULL) return m_lastSelection;
return g_list_index( pages, (gpointer)(notebook->cur_page) );
}
int wxNotebook::GetPageCount() const
{
return (int) g_list_length( GTK_NOTEBOOK(m_widget)->children );
}
int wxNotebook::GetRowCount() const
{
return 1;
}
wxString wxNotebook::GetPageText( int page ) const
{
wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
if (nb_page)
return nb_page->m_text;
else
return wxT("");
}
int wxNotebook::GetPageImage( int page ) const
{
wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
if (nb_page)
return nb_page->m_image;
else
return -1;
}
wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
{
wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
wxCHECK_MSG( page < (int)m_pages.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
wxNode *node = m_pages.Nth( page );
return (wxGtkNotebookPage *) node->Data();
}
int wxNotebook::SetSelection( int page )
{
wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
wxCHECK_MSG( page < (int)m_pages.GetCount(), -1, wxT("invalid notebook index") );
int selOld = GetSelection();
gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
wxGtkNotebookPage* g_page = GetNotebookPage( page );
if (g_page->m_client)
g_page->m_client->SetFocus();
return selOld;
}
void wxNotebook::AdvanceSelection( bool forward )
{
wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
int max = GetPageCount();
if ( !max )
{
// nothing to do with empty notebook
return;
}
int sel = GetSelection();
if (forward)
SetSelection( sel == max - 1 ? 0 : sel + 1 );
else
SetSelection( sel == 0 ? max - 1 : sel - 1 );
}
void wxNotebook::SetImageList( wxImageList* imageList )
{
m_imageList = imageList;
}
bool wxNotebook::SetPageText( int page, const wxString &text )
{
wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
nb_page->m_text = text;
gtk_label_set( nb_page->m_label, nb_page->m_text.mbc_str() );
return TRUE;
}
bool wxNotebook::SetPageImage( int page, int image )
{
/* HvdH 28-12-98: now it works, but it's a bit of a kludge */
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
if (!nb_page) return FALSE;
/* Optimization posibility: return immediately if image unchanged.
* Not enabled because it may break existing (stupid) code that
* manipulates the imagelist to cycle images */
/* if (image == nb_page->m_image) return TRUE; */
/* For different cases:
1) no image -> no image
2) image -> no image
3) no image -> image
4) image -> image */
if (image == -1 && nb_page->m_image == -1)
return TRUE; /* Case 1): Nothing to do. */
GtkWidget *pixmapwid = (GtkWidget*) NULL;
if (nb_page->m_image != -1)
{
/* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
while (child)
{
if (GTK_IS_PIXMAP(child->data))
{
pixmapwid = GTK_WIDGET(child->data);
break;
}
child = child->next;
}
/* We should have the pixmap widget now */
wxASSERT(pixmapwid != NULL);
if (image == -1)
{
/* If there's no new widget, just remove the old from the box */
gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
nb_page->m_image = -1;
return TRUE; /* Case 2) */
}
}
/* Only cases 3) and 4) left */
wxASSERT( m_imageList != NULL ); /* Just in case */
/* Construct the new pixmap */
const wxBitmap *bmp = m_imageList->GetBitmap(image);
GdkPixmap *pixmap = bmp->GetPixmap();
GdkBitmap *mask = (GdkBitmap*) NULL;
if ( bmp->GetMask() )
{
mask = bmp->GetMask()->GetBitmap();
}
if (pixmapwid == NULL)
{
/* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
pixmapwid = gtk_pixmap_new (pixmap, mask );
/* CHECKME: Are these pack flags okay? */
gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, 3);
gtk_widget_show(pixmapwid);
}
else
{
/* Case 4) Simply replace the pixmap */
gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
}
nb_page->m_image = image;
return TRUE;
}
void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
{
wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
}
void wxNotebook::SetPadding( const wxSize &WXUNUSED(padding) )
{
wxFAIL_MSG( wxT("wxNotebook::SetPadding not implemented") );
}
void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
{
wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
}
bool wxNotebook::DeleteAllPages()
{
wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
while (m_pages.GetCount() > 0)
DeletePage( m_pages.GetCount()-1 );
return TRUE;
}
bool wxNotebook::DeletePage( int page )
{
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
if (!nb_page) return FALSE;
/* GTK sets GtkNotebook.cur_page to NULL before sending
the switch page event */
m_lastSelection = GetSelection();
nb_page->m_client->Destroy();
m_pages.DeleteObject( nb_page );
m_lastSelection = -1;
return TRUE;
}
bool wxNotebook::RemovePage( int page )
{
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
wxCHECK_MSG( nb_page, FALSE, _T("wxNotebook::RemovePage: invalid page") );
gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
nb_page->m_client->Destroy();
m_pages.DeleteObject( nb_page );
return TRUE;
}
bool wxNotebook::InsertPage( int position, wxNotebookPage* win, const wxString& text,
bool select, int imageId )
{
wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
wxCHECK_MSG( win->GetParent() == this, FALSE,
wxT("Can't add a page whose parent is not the notebook!") );
/* don't receive switch page during addition */
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
wxGtkNotebookPage *page = new wxGtkNotebookPage();
if (position < 0)
m_pages.Append( page );
else
m_pages.Insert( m_pages.Nth( position ), page );
page->m_client = win;
page->m_box = gtk_hbox_new( FALSE, 0 );
gtk_container_border_width( GTK_CONTAINER(page->m_box), 2 );
gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
if (position < 0)
gtk_notebook_append_page( notebook, win->m_widget, page->m_box );
else
gtk_notebook_insert_page( notebook, win->m_widget, page->m_box, position );
page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
/* set the label image */
page->m_image = imageId;
if (imageId != -1)
{
wxASSERT( m_imageList != NULL );
const wxBitmap *bmp = m_imageList->GetBitmap(imageId);
GdkPixmap *pixmap = bmp->GetPixmap();
GdkBitmap *mask = (GdkBitmap*) NULL;
if ( bmp->GetMask() )
{
mask = bmp->GetMask()->GetBitmap();
}
GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
gtk_box_pack_start(GTK_BOX(page->m_box), pixmapwid, FALSE, FALSE, 3);
gtk_widget_show(pixmapwid);
}
/* set the label text */
page->m_text = text;
if (page->m_text.IsEmpty()) page->m_text = wxT("");
page->m_label = GTK_LABEL( gtk_label_new(page->m_text.mbc_str()) );
gtk_box_pack_end( GTK_BOX(page->m_box), GTK_WIDGET(page->m_label), FALSE, FALSE, 3 );
/* show the label */
gtk_widget_show( GTK_WIDGET(page->m_label) );
if (select && (m_pages.GetCount() > 1))
{
if (position < 0)
SetSelection( GetPageCount()-1 );
else
SetSelection( position );
}
gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
return TRUE;
}
bool wxNotebook::AddPage(wxNotebookPage* win, const wxString& text,
bool select, int imageId)
{
return InsertPage( -1, win, text, select, imageId );
}
void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
{
if (event.IsWindowChange())
AdvanceSelection( event.GetDirection() );
else
event.Skip();
}
wxNotebookPage *wxNotebook::GetPage( int page ) const
{
wxCHECK_MSG( m_widget != NULL, (wxWindow*) NULL, wxT("invalid notebook") );
wxGtkNotebookPage* nb_page = GetNotebookPage(page);
if (!nb_page)
return (wxNotebookPage *) NULL;
else
return nb_page->m_client;
}
#if wxUSE_CONSTRAINTS
// override these 2 functions to do nothing: everything is done in OnSize
void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
{
// don't set the sizes of the pages - their correct size is not yet known
wxControl::SetConstraintSizes(FALSE);
}
bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
{
return TRUE;
}
#endif
void wxNotebook::ApplyWidgetStyle()
{
// TODO, font for labels etc
SetWidgetStyle();
gtk_widget_set_style( m_widget, m_widgetStyle );
}
bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
{
return ((m_widget->window == window) ||
(GTK_NOTEBOOK(m_widget)->panel == window));
}
//-----------------------------------------------------------------------------
// wxNotebookEvent
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
#endif
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