| -rw-r--r-- | microkde/kdeui/kcmodule.h | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/microkde/kdeui/kcmodule.h b/microkde/kdeui/kcmodule.h new file mode 100644 index 0000000..90a87c9 --- a/dev/null +++ b/microkde/kdeui/kcmodule.h @@ -0,0 +1,266 @@ +/* + This file is part of the KDE libraries + + Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + +*/ +#ifndef __KCMODULE_H__ +#define __KCMODULE_H__ + +#include <qwidget.h> +#include <qstringlist.h> +//USclass KAboutData; +class KCModulePrivate; +//US class KInstance; + +/** + * The base class for control center modules. + * + * Starting from KDE 2.0, control center modules are realized as shared + * libraries that are loaded into the control center at runtime. + * + * The module in principle is a simple widget displaying the + * item to be changed. The module has a very small interface. + * + * All the necessary glue logic and the GUI bells and whistles + * are provided by the control center and must not concern + * the module author. + * + * To write a config module, you have to create a library + * that contains at one factory function like this: + * + * <pre> + * #include <kgenericfactory.h> + * + * typedef KGenericFactory<YourKCModule, QWidget> YourKCModuleFactory; + * K_EXPORT_COMPONENT_FACTORY( yourLibName, YourKCModuleFactory("name_of_the_po_file") ); + * </pre> + * + * The parameter "name_of_the_po_file" has to correspond with the messages target + * that you created in your Makefile.am. + * + * See kdebase/kcontrol/HOWTO for more detailed documentation. + * + * @author Matthias Hoelzer-Kluepfel <hoelzer@kde.org> + */ + +class KCModule : public QWidget +{ + Q_OBJECT + +public: + + /** + * An enumeration type for the buttons used by this module. + * You should only use Help, Default and Apply. The rest is obsolete. + * + * @see KCModule::buttons @see KCModule::setButtons + */ + enum Button {Help=1, Default=2, Apply=16, + Reset=4, /* obsolete, do not use! */ + Cancel=8, /* obsolete, do not use! */ + Ok=32, /* obsolete, do not use! */ + SysDefault=64 /* obsolete, do not use! */ }; + + /* + * Base class for all KControlModules. + * Make sure you have a QStringList argument in your + * implementation. + */ + KCModule(QWidget *parent=0, const char *name=0, const QStringList &args=QStringList() ); + +//US KCModule(KInstance *instance, QWidget *parent=0, const QStringList &args=QStringList() ); + + /* + * Destroys the module. + */ + ~KCModule(); + + /** + * Load the configuration data into the module. + * + * The load method sets the user interface elements of the + * module to reflect the current settings stored in the + * configuration files. + * + * This method is invoked whenever the module should read its configuration + * (most of the times from a config file) and update the user interface. + * This happens when the user clicks the "Reset" button in the control + * center, to undo all of his changes and restore the currently valid + * settings. NOTE that this is not called after the modules is loaded, + * so you probably want to call this method in the constructor. + */ + virtual void load() {}; + + /** + * Save the configuration data. + * + * The save method stores the config information as shown + * in the user interface in the config files. + * + * If necessary, this method also updates the running system, + * e.g. by restarting applications. + * + * save is called when the user clicks "Apply" or "Ok". + */ + virtual void save() {}; + + /** + * Sets the configuration to sensible default values. + * + * This method is called when the user clicks the "Default" + * button. It should set the display to useful values. + */ + virtual void defaults() {}; + + /** + * Set the configuration to system default values. + * + * This method is called when the user clicks the "System-Default" + * button. It should set the display to the system default values. + * + * NOTE: The default behaviour is to call defaults(). + */ + virtual void sysdefaults() { defaults(); }; + + /** + * Return a quick-help text. + * + * This method is called when the module is docked. + * The quick-help text should contain a short description of the module and + * links to the module's help files. You can use QML formating tags in the text. + * + * NOTE: Please make sure the quick help text gets translated (use i18n()). + */ + virtual QString quickHelp() const { return QString::null; }; + + /** + * Returns a the KAboutData for this module + * This is generally only called for the KBugReport. + * Override and have it return a pointer to a constant + */ +//US virtual const KAboutData *aboutData() const { return 0; } + + /** + * Indicate which buttons will be used. + * + * The return value is a value or'ed together from + * the Button enumeration type. + * + * @see KCModule::setButtons + */ + int buttons() const { return _btn; }; + + /** + * Get the RootOnly message for this module. + * + * When the module must be run as root, or acts differently + * for root and a normal user, it is sometimes useful to + * customize the message that appears at the top of the module + * when used as a normal user. This function returns this + * customized message. If none has been set, a default message + * will be used. + * + * @see KCModule::setRootOnlyMsg + */ + QString rootOnlyMsg() const; + + /** + * Tell if KControl should show a RootOnly message when run as + * a normal user. + * + * In some cases, the module don't want a RootOnly message to + * appear (for example if it has already one). This function + * tells KControl if a RootOnly message should be shown + * + * @see KCModule::setUseRootOnlyMsg + */ + bool useRootOnlyMsg() const; + + +//US KInstance *instance() const; + +signals: + + /** + * Indicate that the state of the modules contents has changed. + * + * This signal is emitted whenever the state of the configuration + * shown in the module changes. It allows the control center to + * keep track of unsaved changes. + * + */ + void changed(bool state); + + /** + * Indicate that the module's quickhelp has changed. + * + * Emit this signal whenever the module's quickhelp changes. + * Modules implemented as tabbed dialogs might want to implement + * per-tab quickhelp for example. + * + */ + void quickHelpChanged(); + +protected: + + /** + * Sets the buttons to display. + * + * Help: shows a "Help" button. + * Default: shows a "Use Defaults" button + * Apply: in kcontrol this will show an "Apply" and "Reset" button + * in kcmshell this will show an "Ok", "Apply" and "Cancel" button + * + * If Apply is not specified, kcmshell will show a "Close" button. + * + * @see KCModule::buttons + */ + void setButtons(int btn) { _btn = btn; }; + + /** + * Sets the RootOnly message. + * + * This message will be shown at the top of the module of the + * corresponding desktop file contains the line X-KDE-RootOnly=true. + * If no message is set, a default one will be used. + * + * @see KCModule::rootOnlyMessage + */ + void setRootOnlyMsg(const QString& msg); + + /** + * Change wether or not the RootOnly message should be shown. + * + * Following the value of @p on, the RootOnly message will be + * shown or not. + * + * @see KCModule::useRootOnlyMsg + */ + void setUseRootOnlyMsg(bool on); + +private: + + int _btn; +protected: + virtual void virtual_hook( int id, void* data ); +private: + KCModulePrivate *d; +}; + +#endif |