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// -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GDKMM_VISUAL_H
#define _GDKMM_VISUAL_H
#include <glibmm.h>
/* $Id$ */
/* bitmap.h
*
* Copyright (C) 1998-2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm/object.h>
#include <gdkmm/screen.h>
#include <gdk/gdkvisual.h>
#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GdkVisual GdkVisual;
typedef struct _GdkVisualClass GdkVisualClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
namespace Gdk
{ class Visual_Class; } // namespace Gdk
namespace Gdk
{
class Screen;
/** @addtogroup gdkmmEnums Enums and Flags */
/**
* @ingroup gdkmmEnums
*/
enum VisualType
{
VISUAL_STATIC_GRAY,
VISUAL_GRAYSCALE,
VISUAL_STATIC_COLOR,
VISUAL_PSEUDO_COLOR,
VISUAL_TRUE_COLOR,
VISUAL_DIRECT_COLOR
};
} // namespace Gdk
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Glib
{
template <>
class Value<Gdk::VisualType> : public Glib::Value_Enum<Gdk::VisualType>
{
public:
static GType value_type() G_GNUC_CONST;
};
} // namespace Glib
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
namespace Gdk
{
/** A Gdk::Visual describes a particular video hardware display format.
* It includes information about the number of bits used for each color, the way the bits are translated into an RGB value
* for display, and the way the bits are stored in memory. For example, a piece of display hardware might support 24-bit
* color, 16-bit color, or 8-bit color; meaning 24/16/8-bit pixel sizes. For a given pixel size, pixels can be in different
* formats; for example the "red" element of an RGB pixel may be in the top 8 bits of the pixel, or may be in the lower 4
* bits.
*
* Usually you can avoid thinking about visuals in GTK+. Visuals are useful to interpret the contents of a GdkImage, but
* you should avoid Gdk::Image precisely because its contents depend on the display hardware; use Gdk::Pixbuf instead, for
* all but the most low-level purposes. Also, anytime you provide a Gdk::Colormap, the visual is implied as part of the
* colormap (Gdk::Colormap::get_visual()), so you won't have to provide a visual in addition.
*
* There are several standard visuals. The visual returned by get_system() is the system's default visual. get_visual()
* returns the visual most suited to displaying full-color image data. If you use the calls in Gdk::RGB, you should create
* your windows using this visual (and the colormap returned by Gdk::Rgb::get_colormap()).
*
* A number of methods are provided for determining the "best" available visual. For the purposes of making this
* determination, higher bit depths are considered better, and for visuals of the same bit depth, GDK_VISUAL_PSEUDO_COLOR
* is preferred at 8bpp, otherwise, the visual types are ranked in the order of (highest to lowest) GDK_VISUAL_DIRECT_COLOR,
* GDK_VISUAL_TRUE_COLOR, GDK_VISUAL_PSEUDO_COLOR, GDK_VISUAL_STATIC_COLOR, GDK_VISUAL_GRAYSCALE, then
* GDK_VISUAL_STATIC_GRAY.
*/
class Visual : public Glib::Object
{
#ifndef DOXYGEN_SHOULD_SKIP_THIS
public:
typedef Visual CppObjectType;
typedef Visual_Class CppClassType;
typedef GdkVisual BaseObjectType;
typedef GdkVisualClass BaseClassType;
private: friend class Visual_Class;
static CppClassType visual_class_;
private:
// noncopyable
Visual(const Visual&);
Visual& operator=(const Visual&);
protected:
explicit Visual(const Glib::ConstructParams& construct_params);
explicit Visual(GdkVisual* castitem);
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
public:
virtual ~Visual();
#ifndef DOXYGEN_SHOULD_SKIP_THIS
static GType get_type() G_GNUC_CONST;
static GType get_base_type() G_GNUC_CONST;
#endif
///Provides access to the underlying C GObject.
GdkVisual* gobj() { return reinterpret_cast<GdkVisual*>(gobject_); }
///Provides access to the underlying C GObject.
const GdkVisual* gobj() const { return reinterpret_cast<GdkVisual*>(gobject_); }
///Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
GdkVisual* gobj_copy();
private:
protected:
Visual();
public:
/** Get the system'sdefault visual for the default GDK screen.
* This is the visual for the root window of the display.
* The return value should not be freed.
* @return System visual.
*/
static Glib::RefPtr<Visual> get_system();
/** Get the visual with the most available colors for the default
* GDK screen. The return value should not be freed.
* @return Best visual.
*/
static Glib::RefPtr<Visual> get_best();
/** Get the best visual with depth @a depth for the default GDK screen.
* Color visuals and visuals with mutable colormaps are preferred
* over grayscale or fixed-colormap visuals. The return value should not
* be freed. <tt>0</tt> may be returned if no visual supports @a depth .
* @param depth A bit depth.
* @return Best visual for the given depth.
*/
static Glib::RefPtr<Visual> get_best(int depth);
/** Get the best visual of the given @a visual_type for the default GDK screen.
* Visuals with higher color depths are considered better. The return value
* should not be freed. <tt>0</tt> may be returned if no visual has type
* @a visual_type .
* @param visual_type A visual type.
* @return Best visual of the given type.
*/
static Glib::RefPtr<Visual> get_best(VisualType visual_type);
/** Combines gdk_visual_get_best_with_depth() and gdk_visual_get_best_with_type().
* @param depth A bit depth.
* @param visual_type A visual type.
* @return Best visual with both @a depth and @a visual_type , or <tt>0</tt> if none.
*/
static Glib::RefPtr<Visual> get_best(int depth, VisualType visual_type);
/** Get the best available depth for the default GDK screen. "Best"
* means "largest," i.e. 32 preferred over 24 preferred over 8 bits
* per pixel.
* @return Best available depth.
*/
static int get_best_depth();
/** Return the best available visual type for the default GDK screen.
* @return Best visual type.
*/
static VisualType get_best_type();
/** Gets the screen to which this visual belongs
* @return The screen to which this visual belongs.
*
* Since: 2.2.
*/
Glib::RefPtr<Screen> get_screen();
/** Gets the screen to which this visual belongs
* @return The screen to which this visual belongs.
*
* Since: 2.2.
*/
Glib::RefPtr<const Screen> get_screen() const;
public:
public:
//C++ methods used to invoke GTK+ virtual functions:
protected:
//GTK+ Virtual Functions (override these to change behaviour):
//Default Signal Handlers::
};
} //namespace Gdk
namespace Glib
{
/** @relates Gdk::Visual
* @param object The C instance
* @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
* @result A C++ instance that wraps this C instance.
*/
Glib::RefPtr<Gdk::Visual> wrap(GdkVisual* object, bool take_copy = false);
}
#endif /* _GDKMM_VISUAL_H */
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