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Delete QPainDevices before the QApplication is destroyed.
Annotate for file src/application.lisp
2010-01-10 tobias
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(in-package :cl-smoke.qt.gui)
2009-04-05 tobias
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17:56:16 '
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(defvar *widgets* nil)
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2010-01-25 tobias
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(defmethod cl-smoke.qt.core:delete-app :around ((application qt:application))
2010-01-10 tobias
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(qt:application.close-all-windows)
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;; widgets are only valid as long, as an application object
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;; exists. QApplication::~QApplication() deletes all widgets in
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;; QApplication::allWidgets().
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;;
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;; see: qt4/src/gui/kernel/qapplication.cpp
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(loop for widget across (qt:application.all-widgets) do
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(tg:cancel-finalization widget))
2010-03-10 tobias
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;; QPaintDevices are only valid when a application object exists.
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(loop for object being the hash-values of smoke::*object-map* do
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(when (typep object 'qt:paint-device)
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(delete-object object)))
2010-01-25 tobias
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;; Finalize other stuff before deleting the QApplication,
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;; e.g. QGraphicsScene
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(tg:gc :full t)
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(call-next-method)
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(setf *widgets* nil))
2009-04-05 tobias
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2009-07-01 tobias
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(defmacro qt:with-app (options &body body)
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"Ensures that a APPLICATION instance exists,
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evaluates BODY and executes the APPLICATION instance after BODY.
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The instance can be accessed with:
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QT:APP.
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17:56:16 '
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Can be nested.
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'
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When a APPLICATION was created, it will be deleted when returning
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from BODY."
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(assert (null options)
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(options)
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"Currently no options can be passed to QT:WITH-APP.")
2010-01-23 tobias
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`(cl-smoke.qt.core:with-application ((cl-smoke.qt.core:ensure-app 'qt:application)
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(cl-smoke.qt.core:kill-app))
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,@body))
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(defun qt:exec ()
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"Executes APP. When QT:*EXEC-P* is false it returns immediately
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and transfers the ownership of the top-level widgets to the qt:application
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instance."
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(if qt:*exec-p*
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(restart-bind ((qt::abort-app #'(lambda ()
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(cxx:quit (qt:app))
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(invoke-restart (find-restart 'continue)))
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:report-function
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#'(lambda (stream)
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(format stream "Return from the application event loop."))
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:test-function
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#'(lambda (condition)
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(declare (ignore condition))
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(and (qt:app-p)
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(find-restart 'continue)))))
2009-07-03 tobias
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(let ((qt:*exec-p* nil))
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(cxx:exec (qt:app))))
2009-07-01 tobias
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(when (typep (qt:app) 'qt:application)
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(setf *widgets* (qt:application.top-level-widgets)))))