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gtk/gdk/gdktypes.h
Matthias Clasen a9dd352986 gdk: Some more tweaks of the docs
2021-03-11 16:37:31 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_TYPES_H__
#define __GDK_TYPES_H__
#if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
/* GDK uses "glib". (And so does GTK).
*/
#include <glib.h>
#include <glib-object.h>
#include <gio/gio.h>
#include <cairo.h>
#include <pango/pango.h>
/* The system specific file gdkconfig.h contains such configuration
* settings that are needed not only when compiling GDK (or GTK)
* itself, but also occasionally when compiling programs that use GDK
* (or GTK). One such setting is what windowing API backend is in use.
*/
#include <gdk/gdkconfig.h>
G_BEGIN_DECLS
/**
* GDK_CURRENT_TIME:
*
* Represents the current time, and can be used anywhere a time is expected.
*/
#define GDK_CURRENT_TIME 0L
#ifdef __GI_SCANNER__
/* The introspection scanner is currently unable to lookup how
* cairo_rectangle_int_t is actually defined. This prevents
* introspection data for the GdkRectangle type to include fields
* descriptions. To workaround this issue, we define it with the same
* content as cairo_rectangle_int_t, but only under the introspection
* define.
*/
struct _GdkRectangle
{
int x, y;
int width, height;
};
typedef struct _GdkRectangle GdkRectangle;
#else
typedef cairo_rectangle_int_t GdkRectangle;
#endif
/* Forward declarations of commonly used types */
typedef struct _GdkRGBA GdkRGBA;
typedef struct _GdkContentFormats GdkContentFormats;
typedef struct _GdkContentProvider GdkContentProvider;
typedef struct _GdkCursor GdkCursor;
typedef struct _GdkTexture GdkTexture;
typedef struct _GdkDevice GdkDevice;
typedef struct _GdkDrag GdkDrag;
typedef struct _GdkDrop GdkDrop;
typedef struct _GdkClipboard GdkClipboard;
typedef struct _GdkDisplayManager GdkDisplayManager;
typedef struct _GdkDisplay GdkDisplay;
typedef struct _GdkSurface GdkSurface;
typedef struct _GdkAppLaunchContext GdkAppLaunchContext;
typedef struct _GdkSeat GdkSeat;
typedef struct _GdkSnapshot GdkSnapshot;
typedef struct _GdkDrawContext GdkDrawContext;
typedef struct _GdkCairoContext GdkCairoContext;
typedef struct _GdkGLContext GdkGLContext;
typedef struct _GdkVulkanContext GdkVulkanContext;
/* Currently, these are the same values numerically as in the
* X protocol. If you change that, gdksurface-x11.c/gdk_surface_set_geometry_hints()
* will need fixing.
*/
/**
* GdkGravity:
* @GDK_GRAVITY_NORTH_WEST: the reference point is at the top left corner.
* @GDK_GRAVITY_NORTH: the reference point is in the middle of the top edge.
* @GDK_GRAVITY_NORTH_EAST: the reference point is at the top right corner.
* @GDK_GRAVITY_WEST: the reference point is at the middle of the left edge.
* @GDK_GRAVITY_CENTER: the reference point is at the center of the surface.
* @GDK_GRAVITY_EAST: the reference point is at the middle of the right edge.
* @GDK_GRAVITY_SOUTH_WEST: the reference point is at the lower left corner.
* @GDK_GRAVITY_SOUTH: the reference point is at the middle of the lower edge.
* @GDK_GRAVITY_SOUTH_EAST: the reference point is at the lower right corner.
* @GDK_GRAVITY_STATIC: the reference point is at the top left corner of the
* surface itself, ignoring window manager decorations.
*
* Defines the reference point of a surface and is used in #GdkPopupLayout.
*/
typedef enum
{
GDK_GRAVITY_NORTH_WEST = 1,
GDK_GRAVITY_NORTH,
GDK_GRAVITY_NORTH_EAST,
GDK_GRAVITY_WEST,
GDK_GRAVITY_CENTER,
GDK_GRAVITY_EAST,
GDK_GRAVITY_SOUTH_WEST,
GDK_GRAVITY_SOUTH,
GDK_GRAVITY_SOUTH_EAST,
GDK_GRAVITY_STATIC
} GdkGravity;
/* Types of modifiers.
*/
/**
* GdkModifierType:
* @GDK_SHIFT_MASK: the Shift key.
* @GDK_LOCK_MASK: a Lock key (depending on the modifier mapping of the
* X server this may either be CapsLock or ShiftLock).
* @GDK_CONTROL_MASK: the Control key.
* @GDK_ALT_MASK: the fourth modifier key (it depends on the modifier
* mapping of the X server which key is interpreted as this modifier, but
* normally it is the Alt key).
* @GDK_BUTTON1_MASK: the first mouse button.
* @GDK_BUTTON2_MASK: the second mouse button.
* @GDK_BUTTON3_MASK: the third mouse button.
* @GDK_BUTTON4_MASK: the fourth mouse button.
* @GDK_BUTTON5_MASK: the fifth mouse button.
* @GDK_SUPER_MASK: the Super modifier
* @GDK_HYPER_MASK: the Hyper modifier
* @GDK_META_MASK: the Meta modifier
*
* Flags to indicate the state of modifier keys and mouse buttons
* in events.
*
* Typical modifier keys are Shift, Control, Meta, Super, Hyper, Alt, Compose,
* Apple, CapsLock or ShiftLock.
*
* Note that GDK may add internal values to events which include values outside
* of this enumeration. Your code should preserve and ignore them. You can use
* %GDK_MODIFIER_MASK to remove all private values.
*/
typedef enum
{
GDK_SHIFT_MASK = 1 << 0,
GDK_LOCK_MASK = 1 << 1,
GDK_CONTROL_MASK = 1 << 2,
GDK_ALT_MASK = 1 << 3,
GDK_BUTTON1_MASK = 1 << 8,
GDK_BUTTON2_MASK = 1 << 9,
GDK_BUTTON3_MASK = 1 << 10,
GDK_BUTTON4_MASK = 1 << 11,
GDK_BUTTON5_MASK = 1 << 12,
GDK_SUPER_MASK = 1 << 26,
GDK_HYPER_MASK = 1 << 27,
GDK_META_MASK = 1 << 28,
} GdkModifierType;
/**
* GDK_MODIFIER_MASK:
*
* A mask covering all entries in `GdkModifierType`.
*/
#define GDK_MODIFIER_MASK (GDK_SHIFT_MASK|GDK_LOCK_MASK|GDK_CONTROL_MASK| \
GDK_ALT_MASK|GDK_SUPER_MASK|GDK_HYPER_MASK|GDK_META_MASK| \
GDK_BUTTON1_MASK|GDK_BUTTON2_MASK|GDK_BUTTON3_MASK| \
GDK_BUTTON4_MASK|GDK_BUTTON5_MASK)
/**
* GdkGLError:
* @GDK_GL_ERROR_NOT_AVAILABLE: OpenGL support is not available
* @GDK_GL_ERROR_UNSUPPORTED_FORMAT: The requested visual format is not supported
* @GDK_GL_ERROR_UNSUPPORTED_PROFILE: The requested profile is not supported
* @GDK_GL_ERROR_COMPILATION_FAILED: The shader compilation failed
* @GDK_GL_ERROR_LINK_FAILED: The shader linking failed
*
* Error enumeration for `GdkGLContext`.
*/
typedef enum {
GDK_GL_ERROR_NOT_AVAILABLE,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
GDK_GL_ERROR_UNSUPPORTED_PROFILE,
GDK_GL_ERROR_COMPILATION_FAILED,
GDK_GL_ERROR_LINK_FAILED
} GdkGLError;
/**
* GdkVulkanError:
* @GDK_VULKAN_ERROR_UNSUPPORTED: Vulkan is not supported on this backend or has not been
* compiled in.
* @GDK_VULKAN_ERROR_NOT_AVAILABLE: Vulkan support is not available on this Surface
*
* Error enumeration for #GdkVulkanContext.
*/
typedef enum {
GDK_VULKAN_ERROR_UNSUPPORTED,
GDK_VULKAN_ERROR_NOT_AVAILABLE,
} GdkVulkanError;
/**
* GdkAxisUse:
* @GDK_AXIS_IGNORE: the axis is ignored.
* @GDK_AXIS_X: the axis is used as the x axis.
* @GDK_AXIS_Y: the axis is used as the y axis.
* @GDK_AXIS_DELTA_X: the axis is used as the scroll x delta
* @GDK_AXIS_DELTA_Y: the axis is used as the scroll y delta
* @GDK_AXIS_PRESSURE: the axis is used for pressure information.
* @GDK_AXIS_XTILT: the axis is used for x tilt information.
* @GDK_AXIS_YTILT: the axis is used for y tilt information.
* @GDK_AXIS_WHEEL: the axis is used for wheel information.
* @GDK_AXIS_DISTANCE: the axis is used for pen/tablet distance information
* @GDK_AXIS_ROTATION: the axis is used for pen rotation information
* @GDK_AXIS_SLIDER: the axis is used for pen slider information
* @GDK_AXIS_LAST: a constant equal to the numerically highest axis value.
*
* Defines how device axes are interpreted by GTK.
*
* Note that the X and Y axes are not really needed; pointer devices
* report their location via the x/y members of events regardless. Whether
* X and Y are present as axes depends on the GDK backend.
*/
typedef enum
{
GDK_AXIS_IGNORE,
GDK_AXIS_X,
GDK_AXIS_Y,
GDK_AXIS_DELTA_X,
GDK_AXIS_DELTA_Y,
GDK_AXIS_PRESSURE,
GDK_AXIS_XTILT,
GDK_AXIS_YTILT,
GDK_AXIS_WHEEL,
GDK_AXIS_DISTANCE,
GDK_AXIS_ROTATION,
GDK_AXIS_SLIDER,
GDK_AXIS_LAST
} GdkAxisUse;
/**
* GdkAxisFlags:
* @GDK_AXIS_FLAG_X: X axis is present
* @GDK_AXIS_FLAG_Y: Y axis is present
* @GDK_AXIS_FLAG_DELTA_X: Scroll X delta axis is present
* @GDK_AXIS_FLAG_DELTA_Y: Scroll Y delta axis is present
* @GDK_AXIS_FLAG_PRESSURE: Pressure axis is present
* @GDK_AXIS_FLAG_XTILT: X tilt axis is present
* @GDK_AXIS_FLAG_YTILT: Y tilt axis is present
* @GDK_AXIS_FLAG_WHEEL: Wheel axis is present
* @GDK_AXIS_FLAG_DISTANCE: Distance axis is present
* @GDK_AXIS_FLAG_ROTATION: Z-axis rotation is present
* @GDK_AXIS_FLAG_SLIDER: Slider axis is present
*
* Flags describing the current capabilities of a device/tool.
*/
typedef enum
{
GDK_AXIS_FLAG_X = 1 << GDK_AXIS_X,
GDK_AXIS_FLAG_Y = 1 << GDK_AXIS_Y,
GDK_AXIS_FLAG_DELTA_X = 1 << GDK_AXIS_DELTA_X,
GDK_AXIS_FLAG_DELTA_Y = 1 << GDK_AXIS_DELTA_Y,
GDK_AXIS_FLAG_PRESSURE = 1 << GDK_AXIS_PRESSURE,
GDK_AXIS_FLAG_XTILT = 1 << GDK_AXIS_XTILT,
GDK_AXIS_FLAG_YTILT = 1 << GDK_AXIS_YTILT,
GDK_AXIS_FLAG_WHEEL = 1 << GDK_AXIS_WHEEL,
GDK_AXIS_FLAG_DISTANCE = 1 << GDK_AXIS_DISTANCE,
GDK_AXIS_FLAG_ROTATION = 1 << GDK_AXIS_ROTATION,
GDK_AXIS_FLAG_SLIDER = 1 << GDK_AXIS_SLIDER,
} GdkAxisFlags;
/**
* GdkDragAction:
* @GDK_ACTION_COPY: Copy the data.
* @GDK_ACTION_MOVE: Move the data, i.e. first copy it, then delete
* it from the source using the DELETE target of the X selection protocol.
* @GDK_ACTION_LINK: Add a link to the data. Note that this is only
* useful if source and destination agree on what it means, and is not
* supported on all platforms.
* @GDK_ACTION_ASK: Ask the user what to do with the data.
*
* Used in `GdkDrop` and `GdkDrag` to indicate the actions that the
* destination can and should do with the dropped data.
*/
typedef enum
{
GDK_ACTION_COPY = 1 << 0,
GDK_ACTION_MOVE = 1 << 1,
GDK_ACTION_LINK = 1 << 2,
GDK_ACTION_ASK = 1 << 3
} GdkDragAction;
/**
* GDK_ACTION_ALL:
*
* Defines all possible DND actions.
*
* This can be used in [method@Gdk.Drop.status] messages when any drop
* can be accepted or a more specific drop method is not yet known.
*/
#define GDK_ACTION_ALL (GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK)
/*
* GDK_DECLARE_INTERNAL_TYPE:
* @ModuleObjName: The name of the new type, in camel case (like GtkWidget)
* @module_obj_name: The name of the new type in lowercase, with words
* separated by '_' (like 'gtk_widget')
* @MODULE: The name of the module, in all caps (like 'GTK')
* @OBJ_NAME: The bare name of the type, in all caps (like 'WIDGET')
* @ParentName: the name of the parent type, in camel case (like GtkWidget)
*
* A convenience macro for emitting the usual declarations in the
* header file for a type which is intended to be subclassed only
* by internal consumers.
*
* This macro differs from %G_DECLARE_DERIVABLE_TYPE and %G_DECLARE_FINAL_TYPE
* by declaring a type that is only derivable internally. Internal users can
* derive this type, assuming they have access to the instance and class
* structures; external users will not be able to subclass this type.
*/
#define GDK_DECLARE_INTERNAL_TYPE(ModuleObjName, module_obj_name, MODULE, OBJ_NAME, ParentName) \
GType module_obj_name##_get_type (void); \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
typedef struct _##ModuleObjName ModuleObjName; \
typedef struct _##ModuleObjName##Class ModuleObjName##Class; \
\
_GLIB_DEFINE_AUTOPTR_CHAINUP (ModuleObjName, ParentName) \
G_DEFINE_AUTOPTR_CLEANUP_FUNC (ModuleObjName##Class, g_type_class_unref) \
\
G_GNUC_UNUSED static inline ModuleObjName * MODULE##_##OBJ_NAME (gpointer ptr) { \
return G_TYPE_CHECK_INSTANCE_CAST (ptr, module_obj_name##_get_type (), ModuleObjName); } \
G_GNUC_UNUSED static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_CLASS (gpointer ptr) { \
return G_TYPE_CHECK_CLASS_CAST (ptr, module_obj_name##_get_type (), ModuleObjName##Class); } \
G_GNUC_UNUSED static inline gboolean MODULE##_IS_##OBJ_NAME (gpointer ptr) { \
return G_TYPE_CHECK_INSTANCE_TYPE (ptr, module_obj_name##_get_type ()); } \
G_GNUC_UNUSED static inline gboolean MODULE##_IS_##OBJ_NAME##_CLASS (gpointer ptr) { \
return G_TYPE_CHECK_CLASS_TYPE (ptr, module_obj_name##_get_type ()); } \
G_GNUC_UNUSED static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_GET_CLASS (gpointer ptr) { \
return G_TYPE_INSTANCE_GET_CLASS (ptr, module_obj_name##_get_type (), ModuleObjName##Class); } \
G_GNUC_END_IGNORE_DEPRECATIONS
typedef struct _GdkKeymapKey GdkKeymapKey;
/**
* GdkKeymapKey:
* @keycode: the hardware keycode. This is an identifying number for a
* physical key.
* @group: indicates movement in a horizontal direction. Usually groups are used
* for two different languages. In group 0, a key might have two English
* characters, and in group 1 it might have two Hebrew characters. The Hebrew
* characters will be printed on the key next to the English characters.
* @level: indicates which symbol on the key will be used, in a vertical direction.
* So on a standard US keyboard, the key with the number “1” on it also has the
* exclamation point ("!") character on it. The level indicates whether to use
* the “1” or the “!” symbol. The letter keys are considered to have a lowercase
* letter at level 0, and an uppercase letter at level 1, though only the
* uppercase letter is printed.
*
* A `GdkKeymapKey` is a hardware key that can be mapped to a keyval.
*/
struct _GdkKeymapKey
{
guint keycode;
int group;
int level;
};
G_END_DECLS
/*< private >
* GDK_EXTERN_VAR:
*
* A macro to annotate extern variables so that they show up properly in
* Windows DLLs.
*/
#ifndef GDK_EXTERN_VAR
# ifdef G_PLATFORM_WIN32
# ifdef GTK_COMPILATION
# ifdef DLL_EXPORT
# define GDK_EXTERN_VAR __declspec(dllexport)
# else /* !DLL_EXPORT */
# define GDK_EXTERN_VAR extern
# endif /* !DLL_EXPORT */
# else /* !GTK_COMPILATION */
# define GDK_EXTERN_VAR extern __declspec(dllimport)
# endif /* !GTK_COMPILATION */
# else /* !G_PLATFORM_WIN32 */
# define GDK_EXTERN_VAR _GDK_EXTERN
# endif /* !G_PLATFORM_WIN32 */
#endif /* GDK_EXTERN_VAR */
#endif /* __GDK_TYPES_H__ */
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