Added Qt4 color swatch widget, for simple color selection.

src/celestia/qt/qtcolorswatchwidget.cpp

@@ -0,0 +1,51 @@
+// qtcolorswatchwidget.h
+//
+// Copyright (C) 2008, Celestia Development Team
+// celestia-developers@lists.sourceforge.net
+//
+// Color swatch widget for Qt4 front-end.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+#include "qtcolorswatchwidget.h"
+#include <QColorDialog>
+
+
+ColorSwatchWidget::ColorSwatchWidget(const QColor& c, QWidget* parent) :
+    QLabel(NULL),
+    m_color(c)
+{
+    setFrameStyle(QFrame::Sunken | QFrame::Panel);
+    setColor(m_color);
+}
+
+
+ColorSwatchWidget::~ColorSwatchWidget()
+{
+}
+
+
+QColor ColorSwatchWidget::color() const
+{
+    return m_color;
+}
+
+
+void ColorSwatchWidget::setColor(QColor c)
+{
+    m_color = c;
+    setPalette(QPalette(m_color));
+    setAutoFillBackground(true);
+}
+
+
+void ColorSwatchWidget::mouseReleaseEvent(QMouseEvent*)
+{
+    QColor c = QColorDialog::getColor(m_color, this);
+    if (c.isValid())
+        setColor(c);
+}
+

src/celestia/qt/qtcolorswatchwidget.h

@@ -0,0 +1,37 @@
+// qtcolorswatchwidget.h
+//
+// Copyright (C) 2008, Celestia Development Team
+// celestia-developers@lists.sourceforge.net
+//
+// Color swatch widget for Qt4 front-end.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+#ifndef _QTCOLORSWATCHWIDGET_H_
+#define _QTCOLORSWATCHWIDGET_H_
+
+#include <QLabel>
+#include <QColor>
+
+class ColorSwatchWidget : public QLabel
+{
+Q_OBJECT
+
+ public:
+    ColorSwatchWidget(const QColor& c, QWidget* parent = NULL);
+    ~ColorSwatchWidget();
+
+    QColor color() const;
+    void setColor(QColor c);
+
+ protected:
+    virtual void mouseReleaseEvent(QMouseEvent* m );
+
+ private:
+    QColor m_color;
+};
+
+#endif // _QTCOLORSWATCHWIDGET_H_