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colorlisteditor.cpp Example File

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 #include <QtGui>

 #include "colorlisteditor.h"

 ColorListEditor::ColorListEditor(QWidget *widget) : QComboBox(widget)

 QColor ColorListEditor::color() const
     return qVariantValue<QColor>(itemData(currentIndex(), Qt::DecorationRole));

 void ColorListEditor::setColor(QColor color)
     setCurrentIndex(findData(color, int(Qt::DecorationRole)));

 void ColorListEditor::populateList()
     QStringList colorNames = QColor::colorNames();

     for (int i = 0; i < colorNames.size(); ++i) {
         QColor color(colorNames[i]);

         insertItem(i, colorNames[i]);
         setItemData(i, color, Qt::DecorationRole);

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Qt 4.4.3