(in-package :gobject)
+(defun g-type-from-object (object)
+ "Returns the GType of an @code{object}
+
+@arg[object]{C pointer to an object}
+@return{GType designator (see @class{g-type-designator})}"
+ (g-type-from-instance object))
+
+(defun g-type-from-class (g-class)
+ (g-type-name (foreign-slot-value g-class 'g-type-class :type)))
+
+(defun g-type-from-instance (type-instance)
+ (g-type-from-class (foreign-slot-value type-instance 'g-type-instance :class)))
+
+(defun g-type-from-interface (type-interface)
+ (g-type-name (foreign-slot-value type-interface 'g-type-interface :type)))
+
(defclass g-object ()
((pointer
:type cffi:foreign-pointer
(defvar *lisp-objects-pointers* (make-hash-table :test 'equal))
(defvar *current-creating-object* nil)
-(defcstruct g-object-struct
- (type-instance g-type-instance)
- (ref-count :uint)
- (qdata :pointer))
-
(defun ref-count (pointer)
- (foreign-slot-value (if (pointerp pointer) pointer (pointer pointer)) 'g-object-struct 'ref-count))
+ (foreign-slot-value (if (pointerp pointer) pointer (pointer pointer)) 'g-object-struct :ref-count))
(defmethod initialize-instance :around ((obj g-object) &key)
(let ((*current-creating-object* obj))
(not (member :readable
(foreign-slot-value param-spec
'g-param-spec
- 'flags))))
+ :flags))))
(error 'property-unreadable-error
:property-name property-name
:class-name (g-type-name object-type)))
(not (member :writable
(foreign-slot-value param-spec
'g-param-spec
- 'flags))))
+ :flags))))
(error 'property-unwritable-error
:property-name property-name
:class-name (g-type-name object-type)))
- (foreign-slot-value param-spec 'g-param-spec 'value-type))
+ (foreign-slot-value param-spec 'g-param-spec :value-type))
(defun g-object-type-property-type (object-type property-name
&key assert-readable assert-writable)
for arg-type in args-types
for arg-g-type = (if arg-type (ensure-g-type arg-type) (g-object-type-property-type object-type arg-name))
for parameter = (mem-aref parameters 'g-parameter i)
- do (setf (foreign-slot-value parameter 'g-parameter 'name) arg-name)
- do (set-g-value (foreign-slot-value parameter 'g-parameter 'value)
+ do (setf (foreign-slot-value parameter 'g-parameter :name) arg-name)
+ do (set-g-value (foreign-slot-value parameter 'g-parameter :value)
arg-value arg-g-type
:zero-g-value t))
(unwind-protect
(loop
for i from 0 below args-count
for parameter = (mem-aref parameters 'g-parameter i)
- do (foreign-free
- (mem-ref (foreign-slot-pointer parameter 'g-parameter 'name)
- :pointer))
- do (g-value-unset
- (foreign-slot-pointer parameter 'g-parameter 'value)))))))
+ do (foreign-free (mem-ref (foreign-slot-pointer parameter 'g-parameter :name) :pointer))
+ do (g-value-unset (foreign-slot-pointer parameter 'g-parameter :value)))))))
(defun g-object-call-get-property (object property-name &optional property-type)
(restart-case
(unwind-protect
(g-object-set-property (ensure-object-pointer object)
property-name value)
- (g-value-unset value))))
\ No newline at end of file
+ (g-value-unset value))))
+
+(defmethod parse-gvalue-for-type (gvalue-ptr (type-numeric (eql +g-type-object+)))
+ (parse-gvalue-object gvalue-ptr))
+
+(defmethod parse-gvalue-for-type (gvalue-ptr (type-numeric (eql +g-type-interface+)))
+ (parse-gvalue-object gvalue-ptr))
+
+(defmethod set-gvalue-for-type (gvalue-ptr (type-numeric (eql +g-type-object+)) value)
+ (set-gvalue-object gvalue-ptr value))
+
+(defmethod set-gvalue-for-type (gvalue-ptr (type-numeric (eql +g-type-interface+)) value)
+ (set-gvalue-object gvalue-ptr value))
+
+(defun g-signal-connect (object signal handler &key after)
+ "Deprecated alias for @fun{connect-signal}"
+ (connect-signal object signal handler :after after))
+
+(defun connect-signal (object signal handler &key after)
+ "Connects the function to a signal for a particular object.
+If @code{after} is true, then the function will be called after the default handler of the signal.
+
+@arg[object]{an instance of @class{gobject}}
+@arg[signal]{a string; names the signal}
+@arg[handler]{a function; handles the signal. Number (and type) of arguments and return value type depends on the signal}
+@arg[after]{a boolean}"
+ (g-signal-connect-closure (ensure-object-pointer object)
+ signal
+ (create-g-closure handler)
+ after))
+
+(defun emit-signal (object signal-name &rest args)
+ "Emits the signal.
+@arg[object]{an instance of @class{g-object}. Signal is emitted on this object}
+@arg[signal-name]{a string specifying the signal}
+@arg[args]{arguments for the signal}
+@return{none}"
+ (let* ((object-type (g-type-from-object (pointer object)))
+ (signal-info (parse-signal-name object-type signal-name)))
+ (unless signal-info
+ (error "Signal ~A not found on object ~A" signal-name object))
+ (let ((params-count (length (signal-info-param-types signal-info))))
+ (with-foreign-object (params 'g-value (1+ params-count))
+ (set-g-value (mem-aref params 'g-value 0) object object-type :zero-g-value t)
+ (iter (for i from 0 below params-count)
+ (for arg in args)
+ (for type in (signal-info-param-types signal-info))
+ (set-g-value (mem-aref params 'g-value (1+ i)) arg type :zero-g-value t))
+ (prog1
+ (if (= (g-type-numeric (signal-info-return-type signal-info)) +g-type-void+)
+ (g-signal-emitv params (signal-info-id signal-info) signal-name (null-pointer))
+ (with-foreign-object (return-value 'g-value)
+ (g-value-zero return-value)
+ (g-value-init return-value (signal-info-return-type signal-info))
+ (prog1 (parse-gvalue return-value)
+ (g-value-unset return-value))))
+ (iter (for i from 0 below (1+ params-count))
+ (g-value-unset (mem-aref params 'g-value i))))))))
projects / cl-gtk2.git / blobdiff