This could cause an immediate crash or incorrect values might be read subsequently resulting in incorrect computations. In QtFlagPropertyManager::uninitializeProperty(QtProperty *): A pointer to freed memory is dereferenced, used as a function argument, or otherwise used (CWE-416) Coverity-Id: 22622 Change-Id: I24fc9d6f7c1c516ddcadaaba2ba7cdaed7c7f807 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
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Oct 24, 2017
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Qt Solutions Component: Property Browser A property browser framework enabling the user to edit a set of properties. The framework provides a browser widget that displays the given properties with labels and corresponding editing widgets (e.g. line edits or comboboxes). The various types of editing widgets are provided by the framework's editor factories: For each property type, the framework provides a property manager (e.g. QtIntPropertyManager and QtStringPropertyManager) which can be associated with the preferred editor factory (e.g. QtSpinBoxFactory and QtLineEditFactory). The framework also provides a variant based property type with corresponding variant manager and factory. Finally, the framework provides three ready-made implementations of the browser widget: QtTreePropertyBrowser, QtButtonPropertyBrowser and QtGroupBoxPropertyBrowser. Version history: 2.1: - QtTreePropertyBrowser - tooltip of property applied to first column, while second column shows the value text of property in its tooltip - QtAbstractPropertyManager - initializeProperty() and uninitializeProperty() without const modifier now - QtTreePropertyBrowser and QtGroupBoxPropertyBrowser - internal margin set to 0 - QtProperty - setEnabled() and isEnabled() methods added - QtTreePropertyBrowser - "rootIsDecorated", "indentation" and "headerVisible" properties added - QtProperty - hasValue() method added, useful for group properties 2.2: - FocusOut event now filtered out in case of Qt::ActiveWindowFocusReason reason. In that case editor is not closed when its sub dialog is executed - Removed bug in color icon generation - Decimals attribute added to "double" property type - PointF, SizeF and RectF types supported - Proper translation calls for tree property browser - QtProperty - ensure inserted subproperty is different from "this" property - QtBrowserItem class introduced, useful for identifying browser's gui elements - Possibility to control expanded state of QtTreePropertyBrowser's items from code - QtTreePropertyBrowser - "resizeMode" and "splitterPosition" properties added - QtGroupBoxPropertyBrowser - fixed crash in case of deleting the editor factory and then deleting the manager - "Decoration" example added - it shows how to add new responsibilities to the existing managers and editor factories 2.3: - Various bugfixes and improvements - QtProperty - setModified() and isModified() methods added - QtTreePropertyBrowser - disabling an item closes its editor - KeySequence, Char, Locale and Cursor types supported - Support for icons in enum type added - Kerning subproperty exposed in Font type - New property browser class added - QtButtonPropertyBrowser with drop down button as a grouping element 2.4: - Fixed memory leak of QtProperty - QtTreePropertyBrowser - group items are rendered better - QtTreePropertyBrowser - propertiesWithoutValueMarked and alternatingRowColors features added - QtTreePropertyBrowser - possibility of coloring properties added - QtTreePropertyBrowser - keyboard navigation improved - New factories providing popup dialogs added: QtColorEditorFactory and QtFontEditorFactory - Single step attribute added to: QtIntPropertyManager and QtDoublePropertyManager 2.5: - "Object Controller" example added. It implements a similar widget to the property editor in QDesigner - Compile with QT_NO_CURSOR - Expand root item with single click on the '+' icon - QtRectPropertyManager and QtRectFPropertyManager - by default constraint is null rect meaning no constraint is applied 2.6: - QtGroupPropertyBrowser - don't force the layout to show the whole labels' contents for read only properties, show tooltips for them in addition. - QtTreePropertyBrowser - fixed painting of the editor for color property type when style sheet is used (QTSOLBUG-64). - Make it possible to change the style of the checkboxes with a stylesheet (QTSOLBUG-61). - Change the minimum size of a combobox so that it can show at least one character and an icon. - Make it possible to properly style custom embedded editors (e.g. the color editor provided with the solution).