yet more avoiding direct struct access

[wxWidgets.git] / include / wx / gtk / private / gtk2-compat.h

///////////////////////////////////////////////////////////////////////////////
// Name:        wx/gtk/private/compat.h
// Purpose:     Compatibility code for older GTK+ versions
// Author:      Vaclav Slavik
// Created:     2011-03-25
// RCS-ID:      $Id$
// Copyright:   (c) 2011 Vaclav Slavik <vslavik@fastmail.fm>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_GTK_PRIVATE_COMPAT_H_
#define _WX_GTK_PRIVATE_COMPAT_H_

// ----------------------------------------------------------------------------
// Implementations of new accessors for older GTK+ versions
// ----------------------------------------------------------------------------

// GTK+ deprecated direct access to struct members and some other stuff,
// replacing them with simple accessor functions. These aren't available in
// older versions, though, so we have to provide them for compatibility.
//
// Note: wx_ prefix is used to avoid symbol conflicts at runtime
//
// Note 2: We support building against newer GTK+ version and using an older
//         one at runtime, so we must provide our implementations of these
//         functions even if GTK_CHECK_VERSION would indicate the function is
//         already available in GTK+.

#if !GTK_CHECK_VERSION(3,0,0) && !(defined(GTK_DISABLE_DEPRECATED) || defined(GSEAL_ENABLE))

// ----------------------------------------------------------------------------
// the following were introduced in GTK+ 2.8

static inline GtkWidget* wx_gtk_scrolled_window_get_hscrollbar(GtkScrolledWindow* scrolled_window)
{
    return scrolled_window->hscrollbar;
}
#define gtk_scrolled_window_get_hscrollbar wx_gtk_scrolled_window_get_hscrollbar

static inline GtkWidget* wx_gtk_scrolled_window_get_vscrollbar(GtkScrolledWindow* scrolled_window)
{
    return scrolled_window->vscrollbar;
}
#define gtk_scrolled_window_get_vscrollbar wx_gtk_scrolled_window_get_vscrollbar

// ----------------------------------------------------------------------------
// the following were introduced in GLib 2.10

static inline gpointer wx_g_object_ref_sink(gpointer object)
{
    g_object_ref(object);
    gtk_object_sink(GTK_OBJECT(object));
    return object;
}
#define g_object_ref_sink wx_g_object_ref_sink

// ----------------------------------------------------------------------------
// the following were introduced in GTK+ 2.14

static inline gdouble wx_gtk_adjustment_get_lower(GtkAdjustment* adjustment)
{
    return adjustment->lower;
}
#define gtk_adjustment_get_lower wx_gtk_adjustment_get_lower

static inline gdouble wx_gtk_adjustment_get_page_increment(GtkAdjustment* adjustment)
{
    return adjustment->page_increment;
}
#define gtk_adjustment_get_page_increment wx_gtk_adjustment_get_page_increment

static inline gdouble wx_gtk_adjustment_get_page_size(GtkAdjustment* adjustment)
{
    return adjustment->page_size;
}
#define gtk_adjustment_get_page_size wx_gtk_adjustment_get_page_size

static inline gdouble wx_gtk_adjustment_get_step_increment(GtkAdjustment* adjustment)
{
    return adjustment->step_increment;
}
#define gtk_adjustment_get_step_increment wx_gtk_adjustment_get_step_increment

static inline gdouble wx_gtk_adjustment_get_upper(GtkAdjustment* adjustment)
{
    return adjustment->upper;
}
#define gtk_adjustment_get_upper wx_gtk_adjustment_get_upper

static inline GtkWidget* wx_gtk_color_selection_dialog_get_color_selection(GtkColorSelectionDialog* csd)
{
    return csd->colorsel;
}
#define gtk_color_selection_dialog_get_color_selection wx_gtk_color_selection_dialog_get_color_selection

static inline GtkWidget* wx_gtk_dialog_get_content_area(GtkDialog* dialog)
{
    return dialog->vbox;
}
#define gtk_dialog_get_content_area wx_gtk_dialog_get_content_area

static inline GtkWidget* wx_gtk_dialog_get_action_area(GtkDialog* dialog)
{
    return dialog->action_area;
}
#define gtk_dialog_get_action_area wx_gtk_dialog_get_action_area

static inline GtkWidget* wx_gtk_font_selection_dialog_get_cancel_button(GtkFontSelectionDialog* fsd)
{
    return fsd->cancel_button;
}
#define gtk_font_selection_dialog_get_cancel_button wx_gtk_font_selection_dialog_get_cancel_button

static inline GtkWidget* wx_gtk_font_selection_dialog_get_ok_button(GtkFontSelectionDialog* fsd)
{
    return fsd->ok_button;
}
#define gtk_font_selection_dialog_get_ok_button wx_gtk_font_selection_dialog_get_ok_button

static inline GdkAtom wx_gtk_selection_data_get_data_type(GtkSelectionData* selection_data)
{
    return selection_data->type;
}
#define gtk_selection_data_get_data_type wx_gtk_selection_data_get_data_type

static inline gint wx_gtk_selection_data_get_format(GtkSelectionData* selection_data)
{
    return selection_data->format;
}
#define gtk_selection_data_get_format wx_gtk_selection_data_get_format

static inline gint wx_gtk_selection_data_get_length(GtkSelectionData* selection_data)
{
    return selection_data->length;
}
#define gtk_selection_data_get_length wx_gtk_selection_data_get_length

static inline GdkAtom wx_gtk_selection_data_get_target(GtkSelectionData* selection_data)
{
    return selection_data->target;
}
#define gtk_selection_data_get_target wx_gtk_selection_data_get_target

static inline GdkWindow* wx_gtk_widget_get_window(GtkWidget* widget)
{
    return widget->window;
}
#define gtk_widget_get_window wx_gtk_widget_get_window

// ----------------------------------------------------------------------------
// the following were introduced in GTK+ 2.16

static inline GdkAtom wx_gtk_selection_data_get_selection(GtkSelectionData* selection_data)
{
    return selection_data->selection;
}
#define gtk_selection_data_get_selection wx_gtk_selection_data_get_selection

// ----------------------------------------------------------------------------
// the following were introduced in GTK+ 2.18

static inline void wx_gtk_widget_get_allocation(GtkWidget* widget, GtkAllocation* allocation)
{
    *allocation = widget->allocation;
}
#define gtk_widget_get_allocation wx_gtk_widget_get_allocation

inline gboolean wx_gtk_widget_get_has_window(GtkWidget *widget)
{
    return !GTK_WIDGET_NO_WINDOW(widget);
}
#define gtk_widget_get_has_window wx_gtk_widget_get_has_window


inline gboolean wx_gtk_widget_get_has_grab(GtkWidget *widget)
{
    return GTK_WIDGET_HAS_GRAB(widget);
}
#define gtk_widget_get_has_grab wx_gtk_widget_get_has_grab


inline gboolean wx_gtk_widget_get_visible(GtkWidget *widget)
{
    return GTK_WIDGET_VISIBLE(widget);
}
#define gtk_widget_get_visible wx_gtk_widget_get_visible


inline gboolean wx_gtk_widget_get_sensitive(GtkWidget *widget)
{
    return GTK_WIDGET_VISIBLE(widget);
}
#define gtk_widget_get_sensitive wx_gtk_widget_get_sensitive


inline gboolean wx_gtk_widget_is_drawable(GtkWidget *widget)
{
    return GTK_WIDGET_DRAWABLE(widget);
}
#define gtk_widget_is_drawable wx_gtk_widget_is_drawable


inline gboolean wx_gtk_widget_get_can_focus(GtkWidget *widget)
{
    return GTK_WIDGET_CAN_FOCUS(widget);
}
#define gtk_widget_get_can_focus wx_gtk_widget_get_can_focus

inline void wx_gtk_widset_set_can_focus(GtkWidget *widget, gboolean can)
{
    if ( can )
        GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS);
    else
        GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_FOCUS);
}
#define gtk_widset_set_can_focus wx_gtk_widset_set_can_focus


inline gboolean wx_gtk_widget_get_can_default(GtkWidget *widget)
{
    return GTK_WIDGET_CAN_DEFAULT(widget);
}
#define gtk_widget_get_can_default wx_gtk_widget_get_can_default

inline void wx_gtk_widget_set_can_default(GtkWidget *widget, gboolean can)
{
    if ( can )
        GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_DEFAULT);
    else
        GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_DEFAULT);
}
#define gtk_widget_set_can_default wx_gtk_widget_set_can_default


inline gboolean wx_gtk_widget_has_default(GtkWidget *widget)
{
    return GTK_WIDGET_HAS_DEFAULT(widget);
}
#define gtk_widget_has_default wx_gtk_widget_has_default


inline GtkStateType wx_gtk_widget_get_state(GtkWidget *widget)
{
    return (GtkStateType)GTK_WIDGET_STATE(widget);
}
#define gtk_widget_get_state wx_gtk_widget_get_state


inline gboolean wx_gtk_widget_get_double_buffered(GtkWidget *widget)
{
    return GTK_WIDGET_DOUBLE_BUFFERED(widget);
}
#define gtk_widget_get_double_buffered wx_gtk_widget_get_double_buffered

static inline gboolean wx_gtk_widget_has_grab(GtkWidget* widget)
{
    return GTK_WIDGET_HAS_GRAB(widget);
}
#define gtk_widget_has_grab wx_gtk_widget_has_grab

static inline void wx_gtk_widget_set_allocation(GtkWidget* widget, const GtkAllocation* allocation)
{
    widget->allocation = *allocation;
}
#define gtk_widget_set_allocation wx_gtk_widget_set_allocation

// ----------------------------------------------------------------------------
// the following were introduced in GTK+ 2.20

inline gboolean wx_gtk_widget_get_realized(GtkWidget *widget)
{
    return GTK_WIDGET_REALIZED(widget);
}
#define gtk_widget_get_realized wx_gtk_widget_get_realized


inline gboolean wx_gtk_widget_get_mapped(GtkWidget *widget)
{
    return GTK_WIDGET_MAPPED(widget);
}
#define gtk_widget_get_mapped wx_gtk_widget_get_mapped

static inline GdkWindow* wx_gtk_entry_get_text_window(GtkEntry* entry)
{
    return entry->text_area;
}
#define gtk_entry_get_text_window wx_gtk_entry_get_text_window

#endif // !GTK_CHECK_VERSION(3,0,0) && !defined(GTK_DISABLE_DEPRECATED)


#endif // _WX_GTK_PRIVATE_COMPAT_H_