Refactor Database and Database widgets (#2491)

The Database, DatabaseWidget, and DatabaseTabWidget classes share many responsibilities in inconsistent ways resulting in impenetrable and unmaintainable code and a diverse set of bugs and architecture restrictions. This patch reworks the architecture, responsibilities of, and dependencies between these classes.

The core changes are:

* Move loading and saving logic from widgets into the Database class
* Get rid of the DatabaseManagerStruct and move all the information contained in it into the Database
* Let database objects keep track of modifications and dirty/clean state instead of handing this to external widgets
* Move GUI interactions for loading and saving from the DatabaseTabWidget into the DatabaseWidget (resolves #2494 as a side-effect)
* Heavily clean up DatabaseTabWidget and degrade it to a slightly glorified QTabWidget
* Use QSharedPointers for all Database objects
* Remove the modifiedImmediate signal and replace it with a markAsModified() method
* Implement proper tabName() method instead of reading back titles from GUI widgets (resolves #1389 and its duplicates #2146 #855)
* Fix unwanted AES-KDF downgrade if database uses Argon2 and has CustomData
* Improve code

This patch is also the first major step towards solving issues #476 and #2322.
This commit is contained in:
Janek Bevendorff 2018-11-22 11:47:31 +01:00 committed by GitHub
parent 917c4cc18b
commit d612cad09a
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115 changed files with 2116 additions and 2165 deletions

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@ -41,7 +41,7 @@ public:
explicit EditGroupWidget(QWidget* parent = nullptr);
~EditGroupWidget();
void loadGroup(Group* group, bool create, Database* database);
void loadGroup(Group* group, bool create, QSharedPointer<Database> database);
void clear();
signals:
@ -65,7 +65,7 @@ private:
QPointer<EditWidgetProperties> m_editWidgetProperties;
QPointer<Group> m_group;
QPointer<Database> m_database;
QSharedPointer<Database> m_db;
Q_DISABLE_COPY(EditGroupWidget)
};