1 files changed, 80 insertions, 0 deletions
diff --git a/kbruch/src/ratiowidget.cpp b/kbruch/src/ratiowidget.cpp
new file mode 100644
index 00000000..43d4d317
--- /dev/null
+++ b/kbruch/src/ratiowidget.cpp
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+/***************************************************************************
+                          ratiowidget.h  -  paint a ratio
+                             -------------------
+    begin                : 2004/06/03
+    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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "ratiowidget.h"
+#include "ratiowidget.moc"
+
+/* these includes are needed for Qt support */
+#include <qpainter.h>
+
+RatioWidget::RatioWidget(QWidget * parent = 0, const char * name = 0,
+													const ratio para_ratio = *new ratio()) :
+			FractionBaseWidget(parent, name), m_ratio(para_ratio)
+{
+#ifdef DEBUG
+	kdDebug() << "constructor RatioWidget" << endl;
+#endif
+}
+
+RatioWidget::~RatioWidget()
+{
+#ifdef DEBUG
+	kdDebug() << "destructor RatioWidget" << endl;
+#endif
+}
+
+void RatioWidget::setRatio(const ratio para_ratio)
+{
+	m_ratio = para_ratio;
+	update();
+}
+
+void RatioWidget::paintEvent(QPaintEvent* /* p_paintEvent */)
+{
+	// our x position, we paint from left to right;
+	// we don't want to start directly on the border, so add the margin
+	int x_pos = _MARGIN_X;
+
+	// start the painter
+	QPainter paint(this);
+
+	// ratios and operation signs are painted with the same font
+	paint.setFont(m_font);
+
+	// set the pen for painting
+	QPen pen(Qt::SolidLine);
+	pen.setWidth(0);
+	paint.setPen(pen);
+
+	// get the font height; the font height doesn't change while painting
+	QFontMetrics fm(paint.fontMetrics());
+
+	// now we can correctly set the height of the widget
+	setMinimumHeight(2 * fm.lineSpacing() + 10);
+	setMaximumHeight(2 * fm.lineSpacing() + 10);
+
+	// result as normal ratio
+	paintRatio(paint, m_ratio, x_pos, fm, false);
+
+	// stop the painter
+	paint.end();
+
+	// the space we needed for painting is the minimum width of the widget
+	setMinimumWidth(x_pos);
+
+	return;
+}