Added options dialogue

src/colorbox.cpp

@@ -0,0 +1,68 @@
+#include <QStylePainter>
+#include <QStyleOptionComboBox>
+#include <QMouseEvent>
+#include <QColorDialog>
+#include <QComboBox>
+#include "colorbox.h"
+
+
+ColorBox::ColorBox(QWidget *parent) : QWidget(parent)
+{
+	_color = Qt::red;
+	setSizePolicy(QSizePolicy::QSizePolicy::Minimum, QSizePolicy::Fixed);
+}
+
+QSize ColorBox::sizeHint() const
+{
+	static QSize size;
+	if (size.isValid())
+		return size;
+
+	QComboBox cb;
+	size = cb.sizeHint();
+	return size;
+}
+
+void ColorBox::paintEvent(QPaintEvent *event)
+{
+	Q_UNUSED(event);
+
+    QStylePainter painter(this);
+
+    QStyleOptionComboBox option;
+    option.initFrom(this);
+
+#if defined(Q_OS_MAC) || defined(Q_OS_WIN32)
+	painter.setBrush(_color);
+	painter.drawPrimitive(QStyle::PE_Frame, option);
+#else // Q_OS_MAC || Q_OS_WIN32
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+	painter.setBrush(_color);
+	painter.drawRect(event->rect().adjusted(-1, -1, 0, 0));
+	painter.drawPrimitive(QStyle::PE_FrameLineEdit, option);
+#else // QT 5
+	option.palette.setBrush(QPalette::Base, _color);
+	painter.drawPrimitive(QStyle::PE_FrameLineEdit, option);
+#endif // QT 5
+#endif // Q_OS_MAC || Q_OS_WIN32
+}
+
+void ColorBox::mousePressEvent(QMouseEvent *event)
+{
+	if (event->button() != Qt::LeftButton)
+		return;
+
+	QColor color = QColorDialog::getColor(_color, this, QString(),
+	  QColorDialog::ShowAlphaChannel);
+	if (color.isValid()) {
+		_color = color;
+		update();
+		emit colorChanged(_color);
+	}
+}
+
+void ColorBox::setColor(const QColor &color)
+{
+	_color = color;
+	update();
+}