C++ PostCreation函数代码示例

bool wxStaticBitmap::Create( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
                             const wxPoint &pos, const wxSize &size,
                             long style, const wxString &name )
{
    m_needParent = TRUE;

    if (!PreCreation( parent, pos, size ) ||
        !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
    {
        wxFAIL_MSG( wxT("wxStaticBitmap creation failed") );
        return false;
    }

    m_bitmap = bitmap;

    wxBitmap bmp(bitmap.Ok() ? bitmap : wxBitmap(bogus_xpm));
    m_widget = gtk_pixmap_new(bmp.GetPixmap(), NULL);

    if (bitmap.Ok())
        SetBitmap(bitmap);

    PostCreation(size);
    m_parent->DoAddChild( this );

    return true;
}

bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
      const wxPoint &pos, const wxSize &size,
      long style, const wxValidator& validator, const wxString &name )
{
    m_needParent = true;
    m_acceptsFocus = true;

    if (!PreCreation( parent, pos, size ) ||
        !CreateBase( parent, id, pos, size, style, validator, name ))
    {
        wxFAIL_MSG( wxT("wxButton creation failed") );
        return false;
    }

    m_widget = gtk_button_new_with_mnemonic("");

    float x_alignment = 0.5;
    if (HasFlag(wxBU_LEFT))
        x_alignment = 0.0;
    else if (HasFlag(wxBU_RIGHT))
        x_alignment = 1.0;

    float y_alignment = 0.5;
    if (HasFlag(wxBU_TOP))
        y_alignment = 0.0;
    else if (HasFlag(wxBU_BOTTOM))
        y_alignment = 1.0;

#ifdef __WXGTK24__
    if (!gtk_check_version(2,4,0))
    {
        gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, y_alignment);
    }
    else
#endif
    {
        if (GTK_IS_MISC(GTK_BIN(m_widget)->child))
            gtk_misc_set_alignment(GTK_MISC(GTK_BIN(m_widget)->child),
                                x_alignment, y_alignment);
    }

    SetLabel(label);

    if (style & wxNO_BORDER)
       gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );

    g_signal_connect_after (m_widget, "clicked",
                            G_CALLBACK (gtk_button_clicked_callback),
                            this);

    g_signal_connect_after (m_widget, "style_set",
                            G_CALLBACK (gtk_button_style_set_callback),
                            this);

    m_parent->DoAddChild( this );

    PostCreation(size);

    return true;
}

bool wxColourButton::Create( wxWindow *parent, wxWindowID id,
                        const wxColour &col,
                        const wxPoint &pos, const wxSize &size,
                        long style, const wxValidator& validator,
                        const wxString &name )
{
    if (!PreCreation( parent, pos, size ) ||
        !wxControl::CreateBase(parent, id, pos, size, style, validator, name))
    {
        wxFAIL_MSG( wxT("wxColourButton creation failed") );
        return false;
    }

    m_colour = col;
#ifdef __WXGTK3__
    m_widget = gtk_color_button_new_with_rgba(m_colour);
#else
    m_widget = gtk_color_button_new_with_color( m_colour.GetColor() );
#endif
    g_object_ref(m_widget);

    // GtkColourButton signals
    g_signal_connect(m_widget, "color-set",
                    G_CALLBACK(gtk_clrbutton_setcolor_callback), this);


    m_parent->DoAddChild( this );

    PostCreation(size);
    SetInitialSize(size);

    return true;
}

bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style )
{
    m_needParent = true;

    m_insertCallback = (wxInsertChildFunction)wxInsertChildInMDI;

    if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
        !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("wxMDIClientWindow") ))
    {
        wxFAIL_MSG( wxT("wxMDIClientWindow creation failed") );
        return false;
    }

    m_widget = gtk_notebook_new();

    gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
      GTK_SIGNAL_FUNC(gtk_mdi_page_change_callback), (gpointer)parent );

    gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );

    m_parent->DoAddChild( this );

    PostCreation();

    Show( true );

    return true;
}

bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
                            const wxString &label, const wxPoint &pos,
                            const wxSize &size, long style,
                            const wxValidator& validator,
                            const wxString &name)
{
    m_needParent = true;
    m_acceptsFocus = true;

    m_blockEvent = false;

    if (!PreCreation(parent, pos, size) ||
        !CreateBase(parent, id, pos, size, style, validator, name )) {
        wxFAIL_MSG(wxT("wxToggleButton creation failed"));
        return false;
    }

    wxControl::SetLabel(label);

    // Create the gtk widget.
    m_widget = gtk_toggle_button_new_with_label( wxGTK_CONV( m_label ) );

    gtk_signal_connect(GTK_OBJECT(m_widget), "clicked",
                       GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback),
                       (gpointer *)this);

    m_parent->DoAddChild(this);

    PostCreation(size);

    return true;
}

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 )
{
    if (!PreCreation( parent, pos, size ) ||
            !CreateBase( parent, id, pos, size, style, validator, name ))
    {
        wxFAIL_MSG( wxT("wxChoice creation failed") );
        return false;
    }

    if ( IsSorted() )
    {
        // if our m_strings != NULL, Append() will check for it and insert
        // items in the correct order
        m_strings = new wxSortedArrayString;
    }

    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;
}

// Scrollbar
bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
           const wxPoint& pos,
           const wxSize& size, long style,
           const wxValidator& validator,
           const wxString& name)
{
    if( !CreateControl( parent, id, pos, size, style, validator, name ) )
        return false;
    PreCreation();

    wxSize newSize =
        ( style & wxHORIZONTAL ) ? wxSize( 140, 16 ) : wxSize( 16, 140 );
    if( size.x != -1 ) newSize.x = size.x;
    if( size.y != -1 ) newSize.y = size.y;

    Widget parentWidget = (Widget) parent->GetClientWidget();

    m_mainWidget =
        DoCreateScrollBar( (WXWidget)parentWidget,
                           (wxOrientation)(style & (wxHORIZONTAL|wxVERTICAL)),
                           (void (*)())wxScrollBarCallback );

    PostCreation();
    AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
                  pos.x, pos.y, newSize.x, newSize.y);

    return true;
}

bool wxDirButton::Create( wxWindow *parent, wxWindowID id,
                        const wxString &label, const wxString &path,
                        const wxString &message, const wxString &wildcard,
                        const wxPoint &pos, const wxSize &size,
                        long style, const wxValidator& validator,
                        const wxString &name )
{
    if (!(style & wxDIRP_USE_TEXTCTRL))
    {
        // VERY IMPORTANT: this code is identic to relative code in wxFileButton;
        //                 if you find a problem here, fix it also in wxFileButton !

        if (!PreCreation( parent, pos, size ) ||
            !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
                                    validator, name))
        {
            wxFAIL_MSG( wxT("wxDirButtonGTK creation failed") );
            return false;
        }

        // create the dialog associated with this button
        SetWindowStyle(style);
        m_message = message;
        m_wildcard = wildcard;
        if ((m_dialog = CreateDialog()) == NULL)
            return false;
        SetPath(path);

        // little trick used to avoid problems when there are other GTK windows 'grabbed':
        // GtkFileChooserDialog won't be responsive to user events if there is another
        // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
        // in modal mode in the application - see wxDialogGTK::ShowModal).
        // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
        // is clicked and then remove it as soon as the user closes the dialog itself.
        // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
        // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
        // hidden simply using its "show" and "hide" events - clean & simple :)
        g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
        g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);


        // NOTE: we deliberately ignore the given label as GtkFileChooserButton
        //       use as label the currently selected file
        m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
        g_object_ref(m_widget);

        // GtkFileChooserButton signals
        g_signal_connect(m_widget, "current-folder-changed",
                         G_CALLBACK(gtk_dirbutton_currentfolderchanged_callback), this);

        m_parent->DoAddChild( this );

        PostCreation(size);
        SetInitialSize(size);
    }
    else
        return wxGenericDirButton::Create(parent, id, label, path, message, wildcard,
                                          pos, size, style, validator, name);
    return true;
}

bool
wxNativeWindow::Create(wxWindow* parent,
                       wxWindowID winid,
                       wxNativeWindowHandle widget)
{
    wxCHECK_MSG( widget, false, wxS("Invalid null GtkWidget") );

    // Standard wxGTK controls use PreCreation() but we never have any size
    // specified at this stage, so don't bother with it.
    if ( !CreateBase(parent, winid) )
        return false;

    // Add a reference to the widget to match g_object_unref() in wxWindow dtor.
    m_widget = widget;
    g_object_ref(m_widget);

    parent->DoAddChild(this);

    PostCreation();

    // Ensure that the best (and minimal) size is set to fully display the
    // widget.
    GtkRequisition req;
    gtk_widget_get_preferred_size(widget, NULL, &req);
    SetInitialSize(wxSize(req.width, req.height));

    return true;
}

bool wxBitmapToggleButton::Create(wxWindow *parent, wxWindowID id,
                            const wxBitmap &label, const wxPoint &pos,
                            const wxSize &size, long style,
                            const wxValidator& validator,
                            const wxString &name)
{
    if (!PreCreation(parent, pos, size) ||
       !CreateBase(parent, id, pos, size, style, validator, name ))
    {
        wxFAIL_MSG(wxT("wxBitmapToggleButton creation failed"));
        return false;
    }

    // Create the gtk widget.
    m_widget = gtk_toggle_button_new();
    g_object_ref(m_widget);

    if (style & wxNO_BORDER)
        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );

    m_bitmap = label;
    OnSetBitmap();

    g_signal_connect (m_widget, "clicked",
                      G_CALLBACK (gtk_togglebutton_clicked_callback),
                      this);

    m_parent->DoAddChild(this);

    PostCreation(size);

    return true;
}

bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
{
    if ( !PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
         !CreateBase( parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
                       style, wxDefaultValidator, "wxMDIClientWindow" ))
    {
        wxFAIL_MSG( "wxMDIClientWindow creation failed" );
        return false;
    }

    m_widget = gtk_notebook_new();
    g_object_ref(m_widget);

    g_signal_connect(m_widget, "switch_page", G_CALLBACK(switch_page), parent);

    gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );

    m_parent->DoAddChild( this );

    PostCreation();

    Show( true );

    return true;
}

void pgDialog::LoadResource(wxWindow *parent, const wxChar *name)
{
	if (name)
		dlgName = name;
	wxXmlResource::Get()->LoadDialog(this, parent, dlgName);
	PostCreation();
}

bool wxGauge::Create( wxWindow *parent,
                      wxWindowID id,
                      int range,
                      const wxPoint& pos,
                      const wxSize& size,
                      long style,
                      const wxValidator& validator,
                      const wxString& name )
{
    m_needParent = true;

    if (!PreCreation( parent, pos, size ) ||
        !CreateBase( parent, id, pos, size, style, validator, name ))
    {
        wxFAIL_MSG( wxT("wxGauge creation failed") );
        return false;
    }

    m_rangeMax = range;

    m_widget = gtk_progress_bar_new();
    if ( style & wxGA_VERTICAL )
    {
        gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
                                          GTK_PROGRESS_BOTTOM_TO_TOP );
    }

    m_parent->DoAddChild( this );

    PostCreation(size);
    SetInitialSize(size);

    return true;
}

bool wxSpinButton::Create(wxWindow *parent,
                          wxWindowID id,
                          const wxPoint& pos,
                          const wxSize& size,
                          long style,
                          const wxString& name)
{
    if (!PreCreation(parent, pos, size) ||
        !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name))
    {
        wxFAIL_MSG( wxT("wxSpinButton creation failed") );
        return false;
    }

    m_pos = 0;

    m_widget = gtk_spin_button_new_with_range(0, 100, 1);
    g_object_ref(m_widget);

    gtk_entry_set_width_chars(GTK_ENTRY(m_widget), 0);
    gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
                              (int)(m_windowStyle & wxSP_WRAP) );

    g_signal_connect_after(
        m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);

    m_parent->DoAddChild( this );

    PostCreation(size);

    return true;
}

bool wxAnimationCtrl::Create( wxWindow *parent, wxWindowID id,
                              const wxAnimation& anim,
                              const wxPoint& pos,
                              const wxSize& size,
                              long style,
                              const wxString& name)
{
    if (!PreCreation( parent, pos, size ) ||
        !base_type::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
                               wxDefaultValidator, name))
    {
        wxFAIL_MSG( wxT("wxAnimationCtrl creation failed") );
        return false;
    }

    SetWindowStyle(style);

    m_widget = gtk_image_new();
    g_object_ref(m_widget);
    gtk_widget_show(m_widget);

    m_parent->DoAddChild( this );

    PostCreation(size);
    SetInitialSize(size);

    if (anim.IsOk())
        SetAnimation(anim);

    // init the timer used for animation
    m_timer.SetOwner(this);

    return true;
}