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Diffstat (limited to 'kradio3/src/include/gui_list_helper.h')
| -rw-r--r-- | kradio3/src/include/gui_list_helper.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/kradio3/src/include/gui_list_helper.h b/kradio3/src/include/gui_list_helper.h new file mode 100644 index 0000000..6524043 --- /dev/null +++ b/kradio3/src/include/gui_list_helper.h @@ -0,0 +1,174 @@ +/*************************************************************************** + gui_list_helper.h + ------------------- + begin : Son Sep 26 2004 + copyright : (C) 2004 by Martin Witte + email : [email protected] + ***************************************************************************/ + +/*************************************************************************** + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#ifndef _KRADIO_LIBKRADIO_GUI_GUI_LIST_HELPER_H_ +#define _KRADIO_LIBKRADIO_GUI_GUI_LIST_HELPER_H_ + +#include <qmap.h> +#include <qvaluelist.h> + + +template <class TLIST> class GUISimpleListHelper +{ +public: + GUISimpleListHelper(TLIST *list) : m_List(list) {} + ~GUISimpleListHelper() {} + + void setData(const QValueList<QString> &data); + QString getCurrentText() const { return m_List->currentText(); } + void setCurrentText(const QString &s) { m_List->setCurrentItem(m_revData.contains(s) ? m_revData[s] : 0); } + + int count() const { return m_revData.count(); } + bool contains(const QString &id) const { return m_revData.contains(id); } + +protected: + TLIST *m_List; + QMap<QString, int> m_revData; +}; + + +template <class TLIST> +void GUISimpleListHelper<TLIST>::setData(const QValueList<QString> &data) +{ + m_List->clear(); + m_revData.clear(); + + QValueListConstIterator<QString> it = data.begin(); + QValueListConstIterator<QString> end = data.end(); + for (int i = 0; it != end; ++it, ++i) { + m_revData[*it] = i; + m_List->insertItem(*it); + } +} + + + + + + + + + +template <class TLIST, class TID> class GUIListHelper +{ +public: + enum SORT_KEY { SORT_BY_ID, SORT_BY_DESCR }; + + GUIListHelper(TLIST *list, SORT_KEY skey); + GUIListHelper(TLIST *list, const QMap<TID, QString> &data, SORT_KEY skey); + ~GUIListHelper(); + + void setData(const QMap<TID, QString> &data); + + void setCurrentItem(const TID &) const; + const TID &getCurrentItem() const; + + int count() const { return m_Index2ID.count(); } + + bool contains(const TID &id) const { return m_ID2Index.contains(id); } + +protected: + SORT_KEY m_skey; + TLIST *m_List; + QMap<int, TID> m_Index2ID; + QMap<TID, int> m_ID2Index; + QMap<TID, QString> m_ID2Description; + + struct THelpData { + TID id; + QString descr; + SORT_KEY skey; + + THelpData() : id(), descr(), skey(SORT_BY_ID) {} + THelpData(TID _id, const QString &_descr, SORT_KEY _skey) + : id(_id), + descr(_descr), + skey(_skey) + {} + bool operator > (const THelpData &d) { return (skey == SORT_BY_ID) ? id > d.id : descr > d.descr; } + bool operator < (const THelpData &d) { return (skey == SORT_BY_ID) ? id < d.id : descr < d.descr; } + }; +}; + + + +template <class TLIST, class TID> +GUIListHelper<TLIST, TID>::GUIListHelper(TLIST *list, SORT_KEY skey) + : m_skey(skey), + m_List(list) +{ +} + + +template <class TLIST, class TID> +GUIListHelper<TLIST, TID>::GUIListHelper(TLIST *list, const QMap<TID, QString> &data, SORT_KEY skey) + : m_skey(skey), + m_List(list) +{ + setData(data); +} + + +template <class TLIST, class TID> +GUIListHelper<TLIST, TID>::~GUIListHelper() +{ +} + + +template <class TLIST, class TID> +void GUIListHelper<TLIST, TID>::setData (const QMap<TID, QString> &data) +{ + m_List->clear(); + + m_ID2Description = data; + QValueList<THelpData> help_list; + QMapConstIterator<TID, QString> end = data.end(); + for (QMapConstIterator<TID, QString> it = data.begin(); it != end; ++it) { + help_list.push_back(THelpData(it.key(), *it, m_skey)); + } + qHeapSort(help_list); + + m_Index2ID.clear(); + m_ID2Index.clear(); + + int idx = 0; + QValueListIterator<THelpData> end_hlp = help_list.end(); + for (QValueListIterator<THelpData> it = help_list.begin(); it != end_hlp; ++it, ++idx) { + m_Index2ID.insert(idx, (*it).id); + m_ID2Index.insert((*it).id, idx); + m_List->insertItem((*it).descr); + } +} + + +template <class TLIST, class TID> +void GUIListHelper<TLIST, TID>::setCurrentItem(const TID &id) const +{ + if (m_ID2Index.contains(id)) + m_List->setCurrentItem(m_ID2Index[id]); + else + m_List->setCurrentItem(0); +} + +template <class TLIST, class TID> +const TID &GUIListHelper<TLIST, TID>::getCurrentItem() const +{ + int idx = m_List->currentItem(); + return m_Index2ID[idx]; +} + +#endif |