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Diffstat (limited to 'tdecore/kaccelmanager_private.h')
-rw-r--r-- | tdecore/kaccelmanager_private.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/tdecore/kaccelmanager_private.h b/tdecore/kaccelmanager_private.h new file mode 100644 index 000000000..e931b7e3e --- /dev/null +++ b/tdecore/kaccelmanager_private.h @@ -0,0 +1,196 @@ +/* This file is part of the KDE project + Copyright (C) 2002 Matthias Hoelzer-Kluepfel <mhk@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., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + + +#ifndef __KACCELMANAGER_PRIVATE_H__ +#define __KACCELMANAGER_PRIVATE_H__ + + +#include <tqstring.h> +#include <tqmemarray.h> +#include <tqvaluelist.h> +#include <tqobject.h> + +class TQWidgetStack; + +/** + * A string class handling accelerators. + * + * This class contains a string and knowledge about accelerators. + * It keeps a list weights, telling how valuable each character + * would be as an accelerator. + * + * @author Matthias Hoelzer-Kluepfel <mhk@kde.org> +*/ + +class KAccelString +{ +public: + + KAccelString() : m_pureText(), m_accel(-1) {} + KAccelString(const TQString &input, int initalWeight=-1); + + void calculateWeights(int initialWeight); + + const TQString &pure() const { return m_pureText; } + TQString accelerated() const; + + int accel() const { return m_accel; } + void setAccel(int accel) { m_accel = accel; } + + int originalAccel() const { return m_orig_accel; } + TQString originalText() const { return m_origText; } + + TQChar accelerator() const; + + int maxWeight(int &index, const TQString &used); + + bool operator == (const KAccelString &c) const { return m_pureText == c.m_pureText && m_accel == c.m_accel && m_orig_accel == c.m_orig_accel; } + + +private: + + int stripAccelerator(TQString &input); + + void dump(); + + TQString m_pureText, m_origText; + int m_accel, m_orig_accel; + TQMemArray<int> m_weight; + +}; + + +typedef TQValueList<KAccelString> KAccelStringList; + + +/** + * This class encapsulates the algorithm finding the 'best' + * distribution of accelerators in a hierarchy of widgets. + * + * @author Matthias Hoelzer-Kluepfel <mhk@kde.org> +*/ + +class KAccelManagerAlgorithm +{ +public: + + /// Constants used in the algorithm + enum { + /// Default control weight + DEFAULT_WEIGHT = 50, + /// Additional weight for first character in string + FIRST_CHARACTER_EXTRA_WEIGHT = 50, + /// Additional weight for the beginning of a word + WORD_BEGINNING_EXTRA_WEIGHT = 50, + /// Additional weight for the dialog buttons (large, we basically never want these reassigned) + DIALOG_BUTTON_EXTRA_WEIGHT = 300, + /// Additional weight for a 'wanted' accelerator + WANTED_ACCEL_EXTRA_WEIGHT = 150, + /// Default weight for an 'action' widget (ie, pushbuttons) + ACTION_ELEMENT_WEIGHT = 50, + /// Default weight for group boxes (low priority) + GROUP_BOX_WEIGHT = -2000, + /// Default weight for menu titles + MENU_TITLE_WEIGHT = 250, + /// Additional weight for KDE standard accelerators + STANDARD_ACCEL = 300 + }; + + /// Method to call to find the best distribution of accelerators. + static void findAccelerators(KAccelStringList &result, TQString &used); + +}; + + +class TQPopupMenu; + + +/** + * This class manages a popup menu. It will notice if entries have been + * added or changed, and will recalculate the accelerators accordingly. + * + * This is necessary for dynamic menus like for example in kicker. + * + * @author Matthias Hoelzer-Kluepfel <mhk@kde.org> +*/ + +class KPopupAccelManager : public TQObject +{ + Q_OBJECT + +public: + + static void manage(TQPopupMenu *popup); + + +protected: + + KPopupAccelManager(TQPopupMenu *popup); + + +private slots: + + void aboutToShow(); + + +private: + + void calculateAccelerators(); + + void findMenuEntries(KAccelStringList &list); + void setMenuEntries(const KAccelStringList &list); + + TQPopupMenu *m_popup; + KAccelStringList m_entries; + int m_count; + +}; + + +class QWidgetStackAccelManager : public TQObject +{ + Q_OBJECT + +public: + + static void manage(TQWidgetStack *popup); + + +protected: + + QWidgetStackAccelManager(TQWidgetStack *popup); + + +private slots: + + void aboutToShow(TQWidget *); + bool eventFilter ( TQObject * watched, TQEvent * e ); + +private: + + void calculateAccelerators(); + + TQWidgetStack *m_stack; + KAccelStringList m_entries; + +}; + + +#endif |