smartwidgets.h

   1 /*
   2         Skype Call Recorder
   3         Copyright (C) 2008 jlh (jlh at gmx dot ch)
   4
   5         This program is free software; you can redistribute it and/or modify it
   6         under the terms of the GNU General Public License as published by the
   7         Free Software Foundation; either version 2 of the License, version 3 of
   8         the License, or (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful, but
  11         WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13         General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License along
  16         with this program; if not, write to the Free Software Foundation, Inc.,
  17         51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19         The GNU General Public License version 2 is included with the source of
  20         this program under the file name COPYING.  You can also get a copy on
  21         http://www.fsf.org/
  22 */
  23
  24 #ifndef SMARTWIDGETS_H
  25 #define SMARTWIDGETS_H
  26
  27 #include <QRadioButton>
  28 #include <QCheckBox>
  29 #include <QLineEdit>
  30 #include <QComboBox>
  31 #include "preferences.h"
  32
  33 // Smart widgets that automatically load preferences and set them
  34
  35 // Note: Smart widgets that need to be set up with addItem()/insertItem() can
  36 // not automatically load the current preference.  you need to call setupDone()
  37 // on them after you set them up, so they load the current preference and make the
  38 // widget reflect that.
  39
  40 class SmartRadioButton : public QRadioButton {
  41         Q_OBJECT
  42 public:
  43         SmartRadioButton(const QString &label, Preference &p, const char *v) : QRadioButton(label), preference(p), value(v) {
  44                 setChecked(preference.toString() == value);
  45                 connect(this, SIGNAL(toggled(bool)), this, SLOT(set(bool)));
  46         }
  47
  48 private slots:
  49         void set(bool active) { if (active) preference.set(value); }
  50
  51 private:
  52         Preference &preference;
  53         const char * const value;
  54 };
  55
  56 // --------
  57
  58 class SmartCheckBox : public QCheckBox {
  59         Q_OBJECT
  60 public:
  61         SmartCheckBox(const QString &label, Preference &p) : QCheckBox(label), preference(p) {
  62                 setChecked(preference.toBool());
  63                 connect(this, SIGNAL(toggled(bool)), this, SLOT(set(bool)));
  64         }
  65
  66 private slots:
  67         void set(bool active) { preference.set(active); }
  68
  69 private:
  70         Preference &preference;
  71 };
  72
  73 // --------
  74
  75 class SmartLineEdit : public QLineEdit {
  76         Q_OBJECT
  77 public:
  78         SmartLineEdit(Preference &p) : preference(p) {
  79                 setText(preference.toString());
  80                 connect(this, SIGNAL(editingFinished()), this, SLOT(set()));
  81         }
  82
  83 private slots:
  84         void set() { preference.set(text()); }
  85
  86 private:
  87         Preference &preference;
  88 };
  89
  90 // --------
  91
  92 class SmartComboBox : public QComboBox {
  93         Q_OBJECT
  94 public:
  95         SmartComboBox(Preference &p) : preference(p) { }
  96         void setupDone() {
  97                 int i = findData(preference.toString());
  98                 if (i < 0)
  99                         // TODO: what to do here?
 100                         return;
 101                 setCurrentIndex(i);
 102                 connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(set(int)));
 103         }
 104
 105 private slots:
 106         void set(int i) {
 107                 QVariant v = itemData(i);
 108                 if (v.type() == QVariant::Int)
 109                         preference.set(v.toInt());
 110                 else
 111                         preference.set(v.toString());
 112         }
 113
 114 private:
 115         Preference &preference;
 116 };
 117
 118 // --------
 119
 120 class SmartEditableComboBox : public QComboBox {
 121         Q_OBJECT
 122 public:
 123         SmartEditableComboBox(Preference &p) : preference(p) {
 124                 setEditable(true);
 125                 lineEdit()->setText(preference.toString());
 126         }
 127         // qt 4.3.2 would overwrite any text set in the constructor, during the
 128         // first call to addItem
 129         void setupDone() {
 130                 lineEdit()->setText(preference.toString());
 131                 connect(lineEdit(), SIGNAL(editingFinished()), this, SLOT(set()));
 132         }
 133
 134 private slots:
 135         void set() { preference.set(lineEdit()->text()); }
 136
 137 private:
 138         Preference &preference;
 139 };
 140
 141 #endif
 142