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+/***************************************************************************
+ fractionbasewidget.h - base fraction painting
+ -------------------
+ begin : 2004/05/30
+ copyright : (C) 2004 by Sebastian Stein
+ email : seb.kde@hpfsc.de
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * 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 FRACTIONBASEWIDGET_H
+#define FRACTIONBASEWIDGET_H
+
+/** the space between a ratio and an operation */
+#define _MARGIN_X 5
+
+#ifdef DEBUG
+#include <kdebug.h>
+#endif
+
+#include "ratio.h"
+
+#include <qwidget.h>
+
+
+/*! base class for painting fractions
+ *
+ * \author Sebastian Stein */
+class FractionBaseWidget : public QWidget
+{
+ Q_OBJECT
+
+public:
+ /** constructor */
+ FractionBaseWidget(QWidget * parent, const char * name);
+
+ /** destructor */
+ ~FractionBaseWidget();
+
+ /** updates the widget by first getting the settings and then repainting */
+ void updateAndRepaint();
+
+protected:
+
+ /* store the different colors */
+ QColor m_colorNumber;
+ QColor m_colorLine;
+ QColor m_colorOperation;
+
+ /* the font to paint with */
+ QFont m_font;
+
+ /** overrideing the paint event of QWidget */
+ virtual void paintEvent(QPaintEvent*) = 0;
+
+ /** paints a ratio at the given position */
+ void paintRatio(QPainter & paint, ratio tmp_ratio, int & x_pos, QFontMetrics & fm, bool show_mixed, bool addMargin = true);
+
+ /** paints a string in the vertical middle (aligned to the operation signs) */
+ void paintMiddle(QPainter & paint, const QString& paint_str, int & x_pos, QFontMetrics & fm, QColor color, bool addMargin = true);
+
+private:
+ /** sets the font and color; values taken from settingsclass */
+ void setColorAndFont();
+};
+
+#endif