Keymap

A gdk.Keymap defines the translation from keyboard state (including a hardware key, a modifier mask, and active keyboard group) to a keyval. This translation has two phases. The first phase is to determine the effective keyboard group and level for the keyboard state; the second phase is to look up the keycode/group/level triplet in the keymap and see what keyval it corresponds to.

class Keymap : ObjectG {}

Constructors

this
this(GdkKeymap* gdkKeymap, bool ownedRef = false)

Sets our main struct and passes it to the parent class.

Members

Functions

addOnDirectionChanged
gulong addOnDirectionChanged(void delegate(Keymap) dlg, ConnectFlags connectFlags = cast(ConnectFlags)0)

The ::direction-changed signal gets emitted when the direction of the keymap changes.

addOnKeysChanged
gulong addOnKeysChanged(void delegate(Keymap) dlg, ConnectFlags connectFlags = cast(ConnectFlags)0)

The ::keys-changed signal is emitted when the mapping represented by keymap changes.

addOnStateChanged
gulong addOnStateChanged(void delegate(Keymap) dlg, ConnectFlags connectFlags = cast(ConnectFlags)0)

The ::state-changed signal is emitted when the state of the keyboard changes, e.g when Caps Lock is turned on or off. See Keymap.getCapsLockState.

addVirtualModifiers
void addVirtualModifiers(ref GdkModifierType state)

Maps the non-virtual modifiers (i.e Mod2, Mod3, ...) which are set in state to the virtual modifiers (i.e. Super, Hyper and Meta) and set the corresponding bits in state.

getCapsLockState
bool getCapsLockState()

Returns whether the Caps Lock modifer is locked.

getDirection
PangoDirection getDirection()

Returns the direction of effective layout of the keymap.

getEntriesForKeycode
bool getEntriesForKeycode(uint hardwareKeycode, out GdkKeymapKey[] keys, out uint[] keyvals)

Returns the keyvals bound to hardware_keycode. The Nth GdkKeymapKey in keys is bound to the Nth keyval in keyvals. Free the returned arrays with g_free(). When a keycode is pressed by the user, the keyval from this list of entries is selected by considering the effective keyboard group and level. See Keymap.translateKeyboardState.

getEntriesForKeyval
bool getEntriesForKeyval(uint keyval, out GdkKeymapKey[] keys)

Obtains a list of keycode/group/level combinations that will generate keyval. Groups and levels are two kinds of keyboard mode; in general, the level determines whether the top or bottom symbol on a key is used, and the group determines whether the left or right symbol is used. On US keyboards, the shift key changes the keyboard level, and there are no groups. A group switch key might convert a keyboard between Hebrew to English modes, for example. GdkEventKey contains a group field that indicates the active keyboard group. The level is computed from the modifier mask. The returned array should be freed with g_free().

getKeymapStruct
GdkKeymap* getKeymapStruct(bool transferOwnership = false)

Get the main Gtk struct

getModifierMask
GdkModifierType getModifierMask(GdkModifierIntent intent)

Returns the modifier mask the keymap’s windowing system backend uses for a particular purpose.

getModifierState
uint getModifierState()

Returns the current modifier state.

getNumLockState
bool getNumLockState()

Returns whether the Num Lock modifer is locked.

getScrollLockState
bool getScrollLockState()

Returns whether the Scroll Lock modifer is locked.

getStruct
void* getStruct()

the main Gtk struct as a void*

haveBidiLayouts
bool haveBidiLayouts()

Determines if keyboard layouts for both right-to-left and left-to-right languages are in use.

lookupKey
uint lookupKey(GdkKeymapKey* key)

Looks up the keyval mapped to a keycode/group/level triplet. If no keyval is bound to key, returns 0. For normal user input, you want to use Keymap.translateKeyboardState instead of this function, since the effective group/level may not be the same as the current keyboard state.

mapVirtualModifiers
bool mapVirtualModifiers(ref GdkModifierType state)

Maps the virtual modifiers (i.e. Super, Hyper and Meta) which are set in state to their non-virtual counterparts (i.e. Mod2, Mod3,...) and set the corresponding bits in state.

translateKeyboardState
bool translateKeyboardState(uint hardwareKeycode, GdkModifierType state, int group, out uint keyval, out int effectiveGroup, out int level, out GdkModifierType consumedModifiers)

Translates the contents of a GdkEventKey into a keyval, effective group, and level. Modifiers that affected the translation and are thus unavailable for application use are returned in consumed_modifiers. See Groups[key-group-explanation] for an explanation of groups and levels. The effective_group is the group that was actually used for the translation; some keys such as Enter are not affected by the active keyboard group. The level is derived from state. For convenience, GdkEventKey already contains the translated keyval, so this function isn’t as useful as you might think.

Static functions

getDefault
Keymap getDefault()

Returns the gdk.Keymap attached to the default display.

getForDisplay
Keymap getForDisplay(Display display)

Returns the gdk.Keymap attached to display.

getType
GType getType()
keyvalConvertCase
void keyvalConvertCase(uint symbol, out uint lower, out uint upper)

Obtains the upper- and lower-case versions of the keyval symbol. Examples of keyvals are GDK_KEY_a, GDK_KEY_Enter, GDK_KEY_F1, etc.

keyvalFromName
uint keyvalFromName(string keyvalName)

Converts a key name to a key value.

keyvalIsLower
bool keyvalIsLower(uint keyval)

Returns TRUE if the given key value is in lower case.

keyvalIsUpper
bool keyvalIsUpper(uint keyval)

Returns TRUE if the given key value is in upper case.

keyvalName
string keyvalName(uint keyval)

Converts a key value into a symbolic name.

keyvalToLower
uint keyvalToLower(uint keyval)

Converts a key value to lower case, if applicable.

keyvalToUnicode
uint keyvalToUnicode(uint keyval)

Convert from a GDK key symbol to the corresponding ISO10646 (Unicode) character.

keyvalToUpper
uint keyvalToUpper(uint keyval)

Converts a key value to upper case, if applicable.

unicodeToKeyval
uint unicodeToKeyval(uint wc)

Convert from a ISO10646 character to a key symbol.

Variables

gdkKeymap
GdkKeymap* gdkKeymap;

the main Gtk struct

Inherited Members

From ObjectG

gObject
GObject* gObject;

the main Gtk struct

getObjectGStruct
GObject* getObjectGStruct(bool transferOwnership = false)

Get the main Gtk struct

getStruct
void* getStruct()

the main Gtk struct as a void*

opCast
T opCast()
getDObject
RT getDObject(U obj, bool ownedRef = false)

Gets a D Object from the objects table of associations.

setProperty
void setProperty(string propertyName, T value)
addOnNotify
gulong addOnNotify(void delegate(ParamSpec, ObjectG) dlg, string property = "", ConnectFlags connectFlags = cast(ConnectFlags)0)

The notify signal is emitted on an object when one of its properties has been changed. Note that getting this signal doesn't guarantee that the value of the property has actually changed, it may also be emitted when the setter for the property is called to reinstate the previous value.

getType
GType getType()
compatControl
size_t compatControl(size_t what, void* data)
interfaceFindProperty
ParamSpec interfaceFindProperty(TypeInterface gIface, string propertyName)

Find the gobject.ParamSpec with the given name for an interface. Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

interfaceInstallProperty
void interfaceInstallProperty(TypeInterface gIface, ParamSpec pspec)

Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created gobject.ParamSpec, but normally ObjectClass.overrideProperty will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.

interfaceListProperties
ParamSpec[] interfaceListProperties(TypeInterface gIface)

Lists the properties of an interface.Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

addToggleRef
void addToggleRef(GToggleNotify notify, void* data)

Increases the reference count of the object by one and sets a callback to be called when all other references to the object are dropped, or when this is already the last reference to the object and another reference is established.

addWeakPointer
void addWeakPointer(ref void* weakPointerLocation)

Adds a weak reference from weak_pointer to object to indicate that the pointer located at weak_pointer_location is only valid during the lifetime of object. When the object is finalized, weak_pointer will be set to NULL.

bindProperty
Binding bindProperty(string sourceProperty, ObjectG target, string targetProperty, GBindingFlags flags)

Creates a binding between source_property on source and target_property on target. Whenever the source_property is changed the target_property is updated using the same value. For instance:

bindPropertyFull
Binding bindPropertyFull(string sourceProperty, ObjectG target, string targetProperty, GBindingFlags flags, GBindingTransformFunc transformTo, GBindingTransformFunc transformFrom, void* userData, GDestroyNotify notify)

Complete version of g_object_bind_property().

bindPropertyWithClosures
Binding bindPropertyWithClosures(string sourceProperty, ObjectG target, string targetProperty, GBindingFlags flags, Closure transformTo, Closure transformFrom)

Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.

dupData
void* dupData(string key, GDuplicateFunc dupFunc, void* userData)

This is a variant of g_object_get_data() which returns a 'duplicate' of the value. dup_func defines the meaning of 'duplicate' in this context, it could e.g. take a reference on a ref-counted object.

dupQdata
void* dupQdata(GQuark quark, GDuplicateFunc dupFunc, void* userData)

This is a variant of g_object_get_qdata() which returns a 'duplicate' of the value. dup_func defines the meaning of 'duplicate' in this context, it could e.g. take a reference on a ref-counted object.

forceFloating
void forceFloating()

This function is intended for GObject implementations to re-enforce a floating[floating-ref] object reference. Doing this is seldom required: all GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().

freezeNotify
void freezeNotify()

Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one notify signal is emitted for each property modified while the object is frozen.

getData
void* getData(string key)

Gets a named field from the objects table of associations (see g_object_set_data()).

getProperty
void getProperty(string propertyName, Value value)

Gets a property of an object. value must have been initialized to the expected type of the property (or a type to which the expected type can be transformed) using Value.init.

getQdata
void* getQdata(GQuark quark)

This function gets back user data pointers stored via g_object_set_qdata().

getValist
void getValist(string firstPropertyName, void* varArgs)

Gets properties of an object.

getv
void getv(string[] names, Value[] values)

Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.

isFloating
bool isFloating()

Checks whether object has a floating[floating-ref] reference.

notify
void notify(string propertyName)

Emits a "notify" signal for the property property_name on object.

notifyByPspec
void notifyByPspec(ParamSpec pspec)

Emits a "notify" signal for the property specified by pspec on object.

doref
ObjectG doref()

Increases the reference count of object.

refSink
ObjectG refSink()

Increase the reference count of object, and possibly remove the floating[floating-ref] reference, if object has a floating reference.

removeToggleRef
void removeToggleRef(GToggleNotify notify, void* data)

Removes a reference added with g_object_add_toggle_ref(). The reference count of the object is decreased by one.

removeWeakPointer
void removeWeakPointer(ref void* weakPointerLocation)

Removes a weak reference from object that was previously added using g_object_add_weak_pointer(). The weak_pointer_location has to match the one used with g_object_add_weak_pointer().

replaceData
bool replaceData(string key, void* oldval, void* newval, GDestroyNotify destroy, out GDestroyNotify oldDestroy)

Compares the user data for the key key on object with oldval, and if they are the same, replaces oldval with newval.

replaceQdata
bool replaceQdata(GQuark quark, void* oldval, void* newval, GDestroyNotify destroy, out GDestroyNotify oldDestroy)

Compares the user data for the key quark on object with oldval, and if they are the same, replaces oldval with newval.

runDispose
void runDispose()

Releases all references to other objects. This can be used to break reference cycles.

setData
void setData(string key, void* data)

Each object carries around a table of associations from strings to pointers. This function lets you set an association.

setDataFull
void setDataFull(string key, void* data, GDestroyNotify destroy)

Like g_object_set_data() except it adds notification for when the association is destroyed, either by setting it to a different value or when the object is destroyed.

setProperty
void setProperty(string propertyName, Value value)

Sets a property on an object.

setQdata
void setQdata(GQuark quark, void* data)

This sets an opaque, named pointer on an object. The name is specified through a GQuark (retrived e.g. via g_quark_from_static_string()), and the pointer can be gotten back from the object with g_object_get_qdata() until the object is finalized. Setting a previously set user data pointer, overrides (frees) the old pointer set, using NULL as pointer essentially removes the data stored.

setQdataFull
void setQdataFull(GQuark quark, void* data, GDestroyNotify destroy)

This function works like g_object_set_qdata(), but in addition, a void (*destroy) (gpointer) function may be specified which is called with data as argument when the object is finalized, or the data is being overwritten by a call to g_object_set_qdata() with the same quark.

setValist
void setValist(string firstPropertyName, void* varArgs)

Sets properties on an object.

setv
void setv(string[] names, Value[] values)

Sets n_properties properties for an object. Properties to be set will be taken from values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.

stealData
void* stealData(string key)

Remove a specified datum from the object's data associations, without invoking the association's destroy handler.

stealQdata
void* stealQdata(GQuark quark)

This function gets back user data pointers stored via g_object_set_qdata() and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:

thawNotify
void thawNotify()

Reverts the effect of a previous call to g_object_freeze_notify(). The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.

unref
void unref()

Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

watchClosure
void watchClosure(Closure closure)

This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling Closure.invalidate on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, g_object_ref() and g_object_unref() are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.

weakRef
void weakRef(GWeakNotify notify, void* data)

Adds a weak reference callback to an object. Weak references are used for notification when an object is finalized. They are called "weak references" because they allow you to safely hold a pointer to an object without calling g_object_ref() (g_object_ref() adds a strong reference, that is, forces the object to stay alive).

weakUnref
void weakUnref(GWeakNotify notify, void* data)

Removes a weak reference callback to an object.

clearObject
void clearObject(ref ObjectG objectPtr)

Clears a reference to a GObject

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