companion/src/shared/autocombobox.h

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #ifndef _AUTOCOMBOBOX_H_
  22 #define _AUTOCOMBOBOX_H_
  23
  24 #include <QComboBox>
  25 #include "genericpanel.h"
  26
  27 class AutoComboBox: public QComboBox
  28 {
  29   Q_OBJECT
  30
  31   public:
  32     explicit AutoComboBox(QWidget *parent = 0):
  33       QComboBox(parent),
  34       field(NULL),
  35       panel(NULL),
  36       next(0),
  37       lock(false)
  38     {
  39       connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(onCurrentIndexChanged(int)));
  40     }
  41
  42     void clear()
  43     {
  44       lock = true;
  45       QComboBox::clear();
  46       next = 0;
  47       lock = false;
  48     }
  49
  50     virtual void insertItems(int index, const QStringList & items)
  51     {
  52       foreach(QString item, items) {
  53         addItem(item);
  54       }
  55     }
  56
  57     virtual void addItem(const QString & item)
  58     {
  59       addItem(item, next++);
  60     }
  61
  62     virtual void addItem(const QString & item, int value)
  63     {
  64       lock = true;
  65       QComboBox::addItem(item, value);
  66       if (field && *field==value) {
  67         setCurrentIndex(count()-1);
  68       }
  69       lock = false;
  70     }
  71
  72     void setField(unsigned int & field, GenericPanel * panel=NULL)
  73     {
  74       this->field = (int *)&field;
  75       this->panel = panel;
  76       for (int i=0; i<count(); ++i) {
  77         if ((int)field == itemData(i))
  78           setCurrentIndex(i);
  79       }
  80     }
  81
  82     void setField(int & field, GenericPanel * panel=NULL)
  83     {
  84       this->field = &field;
  85       this->panel = panel;
  86       for (int i=0; i<count(); ++i) {
  87         if ((int)field == itemData(i))
  88           setCurrentIndex(i);
  89       }
  90     }
  91
  92     void setAutoIndexes()
  93     {
  94       for (int i=0; i<count(); ++i) {
  95         setItemData(i, i);
  96         if (*this->field == i)
  97           setCurrentIndex(i);
  98       }
  99     }
 100
 101   protected slots:
 102     void onCurrentIndexChanged(int index)
 103     {
 104       if (field && !lock) {
 105         *field = itemData(index).toInt();
 106         if (panel) {
 107           emit panel->modified();
 108         }
 109       }
 110     }
 111
 112   protected:
 113     int * field;
 114     GenericPanel * panel;
 115     int next;
 116     bool lock;
 117 };
 118
 119 #endif // _AUTOCOMBOBOX_H_