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197 lines
4.6 KiB
197 lines
4.6 KiB
/* This file is part of the KDE project
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Copyright (C) 2002 Matthias Hoelzer-Kluepfel <mhk@kde.org>
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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 as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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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 __TDEACCELMANAGER_PRIVATE_H__
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#define __TDEACCELMANAGER_PRIVATE_H__
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#include <tqstring.h>
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#include <tqmemarray.h>
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#include <tqvaluelist.h>
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#include <tqobject.h>
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class TQWidgetStack;
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/**
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* A string class handling accelerators.
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*
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* This class contains a string and knowledge about accelerators.
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* It keeps a list weights, telling how valuable each character
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* would be as an accelerator.
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*
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* @author Matthias Hoelzer-Kluepfel <mhk@kde.org>
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*/
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class TDEAccelString
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{
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public:
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TDEAccelString() : m_pureText(), m_accel(-1) {}
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TDEAccelString(const TQString &input, int initalWeight=-1);
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void calculateWeights(int initialWeight);
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const TQString &pure() const { return m_pureText; }
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TQString accelerated() const;
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int accel() const { return m_accel; }
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void setAccel(int accel) { m_accel = accel; }
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int originalAccel() const { return m_orig_accel; }
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TQString originalText() const { return m_origText; }
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TQChar accelerator() const;
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int maxWeight(int &index, const TQString &used);
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bool operator == (const TDEAccelString &c) const { return m_pureText == c.m_pureText && m_accel == c.m_accel && m_orig_accel == c.m_orig_accel; }
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private:
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int stripAccelerator(TQString &input);
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void dump();
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TQString m_pureText, m_origText;
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int m_accel, m_orig_accel;
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TQMemArray<int> m_weight;
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};
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typedef TQValueList<TDEAccelString> TDEAccelStringList;
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/**
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* This class encapsulates the algorithm finding the 'best'
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* distribution of accelerators in a hierarchy of widgets.
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*
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* @author Matthias Hoelzer-Kluepfel <mhk@kde.org>
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*/
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class TDEAccelManagerAlgorithm
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{
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public:
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/// Constants used in the algorithm
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enum {
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/// Default control weight
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DEFAULT_WEIGHT = 50,
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/// Additional weight for first character in string
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FIRST_CHARACTER_EXTRA_WEIGHT = 50,
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/// Additional weight for the beginning of a word
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WORD_BEGINNING_EXTRA_WEIGHT = 50,
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/// Additional weight for the dialog buttons (large, we basically never want these reassigned)
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DIALOG_BUTTON_EXTRA_WEIGHT = 300,
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/// Additional weight for a 'wanted' accelerator
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WANTED_ACCEL_EXTRA_WEIGHT = 150,
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/// Default weight for an 'action' widget (ie, pushbuttons)
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ACTION_ELEMENT_WEIGHT = 50,
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/// Default weight for group boxes (low priority)
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GROUP_BOX_WEIGHT = -2000,
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/// Default weight for menu titles
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MENU_TITLE_WEIGHT = 250,
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/// Additional weight for KDE standard accelerators
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STANDARD_ACCEL = 300
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};
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/// Method to call to find the best distribution of accelerators.
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static void findAccelerators(TDEAccelStringList &result, TQString &used);
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};
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class TQPopupMenu;
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/**
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* This class manages a popup menu. It will notice if entries have been
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* added or changed, and will recalculate the accelerators accordingly.
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*
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* This is necessary for dynamic menus like for example in kicker.
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*
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* @author Matthias Hoelzer-Kluepfel <mhk@kde.org>
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*/
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class TDEPopupAccelManager : public TQObject
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{
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Q_OBJECT
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public:
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static void manage(TQPopupMenu *popup);
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protected:
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TDEPopupAccelManager(TQPopupMenu *popup);
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private slots:
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void aboutToShow();
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private:
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void calculateAccelerators();
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void findMenuEntries(TDEAccelStringList &list);
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void setMenuEntries(const TDEAccelStringList &list);
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TQPopupMenu *m_popup;
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TDEAccelStringList m_entries;
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int m_count;
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};
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class QWidgetStackAccelManager : public TQObject
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{
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Q_OBJECT
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public:
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static void manage(TQWidgetStack *popup);
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protected:
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QWidgetStackAccelManager(TQWidgetStack *popup);
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private slots:
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void aboutToShow(TQWidget *);
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bool eventFilter ( TQObject * watched, TQEvent * e );
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private:
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void calculateAccelerators();
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TQWidgetStack *m_stack;
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TDEAccelStringList m_entries;
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};
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#endif
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