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Multiple configurations are accessed and maintained from a new main window menu bar pop up menu "Configurations". The prior settings are the "Default" entry. New configurations may be added by cloning existing ones. Maintenance and navigation is via sub menus for each configuration. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6623 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
#ifndef MULTISETTINGS_HPP_
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#include "pimpl_h.hpp"
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class QSettings;
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class QMainWindow;
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class QMenu;
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//
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// MultiSettings - Manage multiple configuration names
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//
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// Responsibilities:
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//
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// MultiSettings allows a Qt application to be run with alternative
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// settings as stored in a QSettings INI style file. As far as the
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// application is concerned it uses the QSettings instance returned
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// by the MultiSettings::settings() method as if it were the one and
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// only QSettings object. The only caution is the the application
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// must not end the outer settings group since the alternative
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// settings are actually maintained as QSettings groups which are
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// children of a root level group called MultiSettings. The default
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// settings are themselves stored at the root so the QSettings group
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// name MultiSettings is reserved. Also at the root level a key
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// called CurrentMultiSettingsConfiguration is reserved to store the
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// current configuration name.
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//
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//
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// Example Usage:
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//
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// #include <QApplication>
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// #include "MultiSettings.hpp"
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// #include "MyMainWindow.hpp"
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//
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// int main (int argc, char * argv[]) {
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// QApplication a {argc, argv};
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// MultiSettings multi_settings;
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// int result;
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// do {
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// MyMainWindow main_window {&multi_settings};
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// main_window.show ();
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// result = a.exec ();
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// } while (!result && !multi_settings.exit ());
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// return result;
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// }
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//
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// In the main window call MultiSettings::create_menu_actions() to
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// populate an existing QMenu widget with the configuration switching
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// and maintenance actions. This would normally be done in the main
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// window class constructor:
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//
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// MyMainWindow::MyMainWindow (MultiSettings * multi_settings) {
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// QSettings * settings {multi_settings->settings ()};
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// // ...
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// multi_settings->create_menu_actions (this, ui->configurations_menu);
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// // ...
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// }
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//
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class MultiSettings
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{
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public:
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explicit MultiSettings ();
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MultiSettings (MultiSettings const&) = delete;
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MultiSettings& operator = (MultiSettings const&) = delete;
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~MultiSettings ();
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// Add multiple configurations navigation and maintenance actions to
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// a provided menu. The provided main window object instance will
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// have its close() function called when a "Switch To" configuration
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// action is triggered.
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void create_menu_actions (QMainWindow *, QMenu *);
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// Access to the QSettings object instance.
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QSettings * settings ();
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// Call this to determine if the application is terminating, if it
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// returns false then the application main window should be
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// recreated, shown and the application exec() function called
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// again.
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bool exit ();
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private:
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class impl;
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pimpl<impl> m_;
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};
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#endif
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