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
  32 #include "common.h"
  33 #include "preferences.h"
  34
  35 // Smart widgets that automatically load preferences and set them
  36
  37 // Note: Smart widgets that need to be set up with addItem()/insertItem() can
  38 // not automatically load the current preference.  you need to call setupDone()
  39 // on them after you set them up, so they load the current preference and make the
  40 // widget reflect that.
  41
  42 class SmartRadioButton : public QRadioButton {
  43         Q_OBJECT
  44 public:
  45         SmartRadioButton(const QString &label, Preference &p, const char *v) : QRadioButton(label), preference(p), value(v) {
  46                 setChecked(preference.toString() == value);
  47                 connect(this, SIGNAL(toggled(bool)), this, SLOT(set(bool)));
  48         }
  49
  50 private slots:
  51         void set(bool active) { if (active) preference.set(value); }
  52
  53 private:
  54         Preference &preference;
  55         const char * const value;
  56 };
  57
  58 // --------
  59
  60 class SmartCheckBox : public QCheckBox {
  61         Q_OBJECT
  62 public:
  63         SmartCheckBox(const QString &label, Preference &p) : QCheckBox(label), preference(p) {
  64                 setChecked(preference.toBool());
  65                 connect(this, SIGNAL(toggled(bool)), this, SLOT(set(bool)));
  66         }
  67
  68 private slots:
  69         void set(bool active) { preference.set(active); }
  70
  71 private:
  72         Preference &preference;
  73 };
  74
  75 // --------
  76
  77 class SmartLineEdit : public QLineEdit {
  78         Q_OBJECT
  79 public:
  80         SmartLineEdit(Preference &p) : preference(p) {
  81                 setText(preference.toString());
  82                 connect(this, SIGNAL(editingFinished()), this, SLOT(set()));
  83         }
  84
  85 public slots:
  86         void setText(const QString &text) { QLineEdit::setText(text); set(); }
  87
  88 private slots:
  89         void set() { preference.set(text()); }
  90
  91 private:
  92         Preference &preference;
  93 };
  94
  95 // --------
  96
  97 class SmartComboBox : public QComboBox {
  98         Q_OBJECT
  99 public:
 100         SmartComboBox(Preference &p) : preference(p) { }
 101         void setupDone() {
 102                 int i = findData(preference.toString());
 103                 if (i < 0)
 104                         // TODO: what to do here?
 105                         return;
 106                 setCurrentIndex(i);
 107                 connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(set(int)));
 108         }
 109
 110 private slots:
 111         void set(int i) {
 112                 QVariant v = itemData(i);
 113                 if (v.type() == QVariant::Int)
 114                         preference.set(v.toInt());
 115                 else
 116                         preference.set(v.toString());
 117         }
 118
 119 private:
 120         Preference &preference;
 121 };
 122
 123 // --------
 124
 125 class SmartEditableComboBox : public QComboBox {
 126         Q_OBJECT
 127 public:
 128         SmartEditableComboBox(Preference &p) : preference(p) {
 129                 setEditable(true);
 130                 lineEdit()->setText(preference.toString());
 131         }
 132         // qt 4.3.2 would overwrite any text set in the constructor, during the
 133         // first call to addItem
 134         void setupDone() {
 135                 lineEdit()->setText(preference.toString());
 136                 connect(lineEdit(), SIGNAL(editingFinished()), this, SLOT(set()));
 137         }
 138
 139 private slots:
 140         void set() { preference.set(lineEdit()->text()); }
 141
 142 private:
 143         Preference &preference;
 144 };
 145
 146 #endif
 147