utils/wpseditor/gui/src/QPropertyEditor/ColorCombo.cpp

   1 // *************************************************************************************************
   2 //
   3 // QPropertyEditor v 0.1
   4 //
   5 // --------------------------------------
   6 // Copyright (C) 2007 Volker Wiendl
   7 //
   8 //
   9 // This library is free software; you can redistribute it and/or
  10 // modify it under the terms of the GNU Lesser General Public
  11 // License as published by the Free Software Foundation; either
  12 // version 2.1 of the License, or any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17 // Lesser General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU Lesser General Public
  20 // License along with this library; if not, write to the Free Software
  21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  22 //
  23 //
  24 // This class is based on the Color Editor Factory Example by Trolltech
  25 //
  26 // *************************************************************************************************
  27
  28 #include "ColorCombo.h"
  29
  30 #include <Qt/qcolordialog.h>
  31
  32 ColorCombo::ColorCombo(QWidget* parent /*= 0*/) : QComboBox(parent) {
  33     QStringList colorNames = QColor::colorNames();
  34     for (int i = 0; i < colorNames.size(); ++i) {
  35         QColor color(colorNames[i]);
  36         insertItem(i, colorNames[i]);
  37         setItemData(i, color, Qt::DecorationRole);
  38     }
  39     addItem(tr("Custom"), QVariant((int)QVariant::UserType));
  40     connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(currentChanged(int)));
  41 }
  42
  43
  44 ColorCombo::~ColorCombo() {}
  45
  46
  47 QColor ColorCombo::color() const {
  48     return qVariantValue<QColor>(itemData(currentIndex(), Qt::DecorationRole));
  49 }
  50
  51 void ColorCombo::setColor(QColor color) {
  52     m_init = color;
  53     setCurrentIndex(findData(color, int(Qt::DecorationRole)));
  54     if (currentIndex() == -1) {
  55         addItem(color.name());
  56         setItemData(count()-1, color, Qt::DecorationRole);
  57         setCurrentIndex(count()-1);
  58     }
  59 }
  60
  61 void ColorCombo::currentChanged(int index) {
  62     if (itemData(index).isValid() && itemData(index) == QVariant((int)QVariant::UserType)) {
  63         QColor color = QColorDialog::getColor(m_init, this);
  64         if (color.isValid()) {
  65             if (findData(color, int(Qt::DecorationRole)) == -1) {
  66                 addItem(color.name());
  67                 setItemData(count()-1, color, Qt::DecorationRole);
  68             }
  69             setCurrentIndex(findData(color, int(Qt::DecorationRole)));
  70         } else
  71             setCurrentIndex(findData(m_init));
  72     }
  73 }