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409 lines
12 KiB
409 lines
12 KiB
// vi: ts=8 sts=4 sw=4
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/* This file is part of the KDE libraries
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Copyright (C) 1998 Pietro Iglio <iglio@fub.it>
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Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
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Copyright (C) 2004,2005 Andrew Coles <andrew_coles@yahoo.co.uk>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef __KPassDlg_h_included__
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#define __KPassDlg_h_included__
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#include <tqstring.h>
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#include <tqlineedit.h>
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#include <kdialogbase.h>
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class TQLabel;
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class TQGridLayout;
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class TQWidget;
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/**
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* @short A safe password input widget.
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* @author Geert Jansen <geertj@kde.org>
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*
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* The widget uses the user's global "echo mode" setting.
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*/
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class TDEUI_EXPORT KPasswordEdit
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: public TQLineEdit
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{
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Q_OBJECT
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public:
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enum EchoModes { OneStar, ThreeStars, NoEcho };
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/**
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* Constructs a password input widget using the user's global "echo mode" setting.
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*/
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KPasswordEdit(TQWidget *parent=0, const char *name=0);
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// KDE4: either of the two must go! add default values for parameters
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/**
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* Constructs a password input widget using echoMode as "echo mode".
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* Note that echoMode is a TQLineEdit::EchoMode.
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* @since 3.0
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*/
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KPasswordEdit(EchoMode echoMode, TQWidget *parent, const char *name);
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/**
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* Constructs a password input widget using echoMode as "echo mode".
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* Note that echoMode is a KPasswordEdit::EchoModes.
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* @since 3.2
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*/
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KPasswordEdit(EchoModes echoMode, TQWidget *parent, const char *name);
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/**
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* @deprecated, will be removed in KDE 4.0
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* Creates a password input widget using echoMode as "echo mode".
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*/
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KPasswordEdit(TQWidget *parent, const char *name, int echoMode) KDE_DEPRECATED;
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/**
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* Destructs the widget.
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*/
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~KPasswordEdit();
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/**
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* Returns the password.
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*/
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TQString password() const;
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/**
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* Erases the current password.
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*/
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void erase();
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static const int PassLen;
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/**
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* Set the current maximum password length. If a password longer than the limit
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* specified is currently entered, it is truncated accordingly.
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*
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* @param newLength: The new maximum password length
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* @since 3.4
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*/
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void setMaxPasswordLength(int newLength);
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/**
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* Returns the current maximum password length.
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* @since 3.4
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*/
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int maxPasswordLength() const;
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public slots:
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/**
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* Reimplementation
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*/
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virtual void insert( const TQString &);
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protected:
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virtual void keyPressEvent(TQKeyEvent *);
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virtual void focusInEvent(TQFocusEvent *e);
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virtual bool event(TQEvent *e);
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private:
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void init();
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};
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/**
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* @short A password input dialog.
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*
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* This dialog asks the user to enter a password. The functions you're
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* probably interested in are the static methods, getPassword() and
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* getNewPassword().
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*
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* <b>Usage example</b>\n
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*
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* \code
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* TQString password;
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* int result = KPasswordDialog::getPassword(password, i18n("Prompt message"));
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* if (result == KPasswordDialog::Accepted)
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* use(password);
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* \endcode
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*
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* \image html kpassworddialog.png "KDE Password Dialog"
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*
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* <b>Security notes:</b>\n
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*
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* Keeping passwords in memory can be a potential security hole. You should
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* handle this situation with care.
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*
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* @li You may want to use disableCoreDump() to disable core dumps.
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* Core dumps are dangerous because they are an image of the process memory,
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* and thus include any passwords that were in memory.
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*
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* @author Geert Jansen <jansen@kde.org>
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*/
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class TDEUI_EXPORT KPasswordDialog
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: public KDialogBase
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{
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Q_OBJECT
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public:
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/**
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* This enum distinguishes the two operation modes of this dialog:
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*/
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enum Types {
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/**
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* The user is asked to enter a password.
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*/
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Password,
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/**
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* The user is asked to enter a password and to confirm it
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* a second time. This is usually used when the user
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* changes his password.
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*/
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NewPassword
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};
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/**
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* Constructs a password dialog.
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*
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* @param type: if NewPassword is given here, the dialog contains two
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* input fields, so that the user must confirm his password
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* and possible typos are detected immediately.
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* @param enableKeep: if true, a check box is shown in the dialog
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* which allows the user to keep his password input for later.
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* @param extraBttn: allows to show additional buttons, KDialogBase.
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* @param parent Passed to lower level constructor.
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* @param name Passed to lower level constructor
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*
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* @since 3.0
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*/
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KPasswordDialog(Types type, bool enableKeep, int extraBttn,
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TQWidget *parent=0, const char *name=0);
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/**
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* @deprecated Variant of the previous constructor without the
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* possibility to specify a parent. Will be removed in KDE 4.0
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*/
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KPasswordDialog(int type, TQString prompt, bool enableKeep=false,
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int extraBttn=0) KDE_DEPRECATED;
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// note that this implicitly deprecates the 'prompt' variants of
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// getPassword() below. i guess the above constructor needs to be extended.
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/**
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* Construct a password dialog. Essentially the same as above but allows the
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* icon in the password dialog to be set via @p iconName.
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* @param type if NewPassword is given here, the dialog contains two
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* input fields, so that the user must confirm his password
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* and possible typos are detected immediately
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* @param enableKeep: if true, a check box is shown in the dialog
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* which allows the user to keep his password input for later.
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* @param extraBttn: allows to show additional buttons.
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* @param iconName the name of the icon to be shown in the dialog. If empty,
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* a default icon is used
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* @param parent Passed to lower level constructor.
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* @param name Passed to lower level constructor
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* @since 3.3
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*/
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KPasswordDialog(Types type, bool enableKeep, int extraBttn, const TQString& iconName,
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TQWidget *parent = 0, const char *name = 0);
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/**
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* Destructs the password dialog.
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*/
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virtual ~KPasswordDialog();
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/**
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* Sets the password prompt.
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*/
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void setPrompt(TQString prompt);
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/**
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* Returns the password prompt.
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*/
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TQString prompt() const;
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/**
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* Sets the text to be dynamically displayed when the keep checkbox is checked
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*/
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void setKeepWarning(TQString warn);
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/**
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* Adds a line of information to the dialog.
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*/
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void addLine(TQString key, TQString value);
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/**
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* Allow empty passwords? - Default: false
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* @since 3.4
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*/
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void setAllowEmptyPasswords(bool allowed);
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/**
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* Allow empty passwords?
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* @since 3.4
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*/
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bool allowEmptyPasswords() const;
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/**
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* Minimum acceptable password length.
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* Default: If empty passwords are forbidden, 1;
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* Otherwise, 0.
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*
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* @param minLength: The new minimum password length
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* @since 3.4
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*/
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void setMinimumPasswordLength(int minLength);
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/**
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* Minimum acceptable password length.
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* @since 3.4
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*/
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int minimumPasswordLength() const;
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/**
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* Maximum acceptable password length. Limited to 199.
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* Default: No limit, i.e. -1
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*
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* @param maxLength: The new maximum password length.
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* @since 3.4
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*/
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void setMaximumPasswordLength(int maxLength);
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/**
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* Maximum acceptable password length.
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* @since 3.4
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*/
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int maximumPasswordLength() const;
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/**
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* Password length that is expected to be reasonably safe.
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*
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* Default: 8 - the standard UNIX password length
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*
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* @param reasonableLength: The new reasonable password length.
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* @since 3.4
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*/
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void setReasonablePasswordLength(int reasonableLength);
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/**
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* Password length that is expected to be reasonably safe.
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* @since 3.4
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*/
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int reasonablePasswordLength() const;
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/**
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* Set the password strength level below which a warning is given
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* Value is in the range 0 to 99. Empty passwords score 0;
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* non-empty passwords score up to 100, depending on their length and whether they
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* contain numbers, mixed case letters and punctuation.
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*
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* Default: 1 - warn if the password has no discernable strength whatsoever
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* @param warningLevel: The level below which a warning should be given.
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* @since 3.4
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*/
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void setPasswordStrengthWarningLevel(int warningLevel);
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/**
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* Password strength level below which a warning is given
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* @since 3.4
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*/
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int passwordStrengthWarningLevel() const;
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/**
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* Returns the password entered.
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*/
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TQString password() const { return m_pEdit->password(); }
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/**
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* Clears the password input field. You might want to use this after the
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* user failed to enter the correct password.
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* @since 3.3
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*/
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void clearPassword();
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/**
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* Returns true if the user wants to keep the password.
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*/
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bool keep() const { return m_Keep; }
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/**
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* Pops up the dialog, asks the user for a password, and returns it.
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*
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* @param password The password is returned in this reference parameter.
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* @param prompt A prompt for the password. This can be a few lines of
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* information. The text is word broken to fit nicely in the dialog.
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* @param keep Enable/disable a checkbox controlling password keeping.
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* If you pass a null pointer, or a pointer to the value 0, the checkbox
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* is not shown. If you pass a pointer to a nonzero value, the checkbox
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* is shown and the result is stored in *keep.
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* @return Result code: Accepted or Rejected.
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*/
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static int getPassword(TQString &password, TQString prompt, int *keep=0L);
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/**
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* Pops up the dialog, asks the user for a password and returns it. The
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* user has to enter the password twice to make sure it was entered
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* correctly.
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*
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* @param password The password is returned in this reference parameter.
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* @param prompt A prompt for the password. This can be a few lines of
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* information. The text is word broken to fit nicely in the dialog.
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* @return Result code: Accepted or Rejected.
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*/
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static int getNewPassword(TQString &password, TQString prompt);
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/**
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* Static helper function that disables core dumps.
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*/
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static void disableCoreDumps();
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protected slots:
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void slotOk();
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void slotCancel();
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void slotKeep(bool);
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void slotLayout();
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protected:
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/**
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* Virtual function that can be overridden to provide password
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* checking in derived classes. It should return @p true if the
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* password is valid, @p false otherwise.
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*/
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virtual bool checkPassword(const TQString&) { return true; }
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private slots:
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void enableOkBtn();
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private:
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void init();
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void erase();
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int m_Keep;
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int m_Type;
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int m_Row;
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TQLabel *m_pHelpLbl;
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TQLabel *m_keepWarnLbl;
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TQGridLayout *m_pGrid;
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TQWidget *m_pMain;
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KPasswordEdit *m_pEdit;
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KPasswordEdit *m_pEdit2;
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protected:
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virtual void virtual_hook( int id, void* data );
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private:
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class KPasswordDialogPrivate;
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KPasswordDialogPrivate* const d;
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};
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#endif // __KPassDlg_h_included__
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