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+/***************************************************************************
+ resultwidget.h - paint the result
+ -------------------
+ 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. *
+ * *
+ ***************************************************************************/
+
+#include "resultwidget.h"
+#include "resultwidget.moc"
+
+/* these includes are needed for Qt support */
+#include <qpainter.h>
+
+#include "settingsclass.h"
+
+ResultWidget::ResultWidget(QWidget * parent = 0, const char * name = 0,
+ const ratio para_result = *new ratio()) :
+ FractionBaseWidget(parent, name), m_result(para_result)
+{
+#ifdef DEBUG
+ kdDebug() << "constructor ResultWidget" << endl;
+#endif
+}
+
+ResultWidget::~ResultWidget()
+{
+#ifdef DEBUG
+ kdDebug() << "destructor ResultWidget" << endl;
+#endif
+}
+
+void ResultWidget::setResult(const ratio para_result)
+{
+ m_result = para_result;
+ update();
+}
+
+void ResultWidget::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 old_x = _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
+ paintMiddle(paint, QString("="), old_x, fm, m_colorOperation);
+ paintRatio(paint, m_result, old_x, fm, false);
+
+ if (SettingsClass::showSpecialRatioNotation() == true && QABS(m_result.numerator()) >= QABS(m_result.denominator()))
+ {
+ // result as mixed number
+ paintMiddle(paint, QString("="), old_x, fm, m_colorOperation);
+ paintRatio(paint, m_result, old_x, fm, true);
+ }
+
+ // stop the painter
+ paint.end();
+
+ // the space we needed for painting is the minimum width of the widget
+ setMinimumWidth(old_x);
+
+ return;
+}