Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeedu@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 112 insertions, 0 deletions

diff --git a/kbruch/src/factorizedwidget.cpp b/kbruch/src/factorizedwidget.cpp
new file mode 100644
index 00000000..6baabc3e
--- /dev/null
+++ b/kbruch/src/factorizedwidget.cpp
@@ -0,0 +1,112 @@
+/***************************************************************************
+                          factorizedwidget.h  -  paint a factorization
+                             -------------------
+    begin                : 2004/07/11
+    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 "factorizedwidget.h"
+#include "factorizedwidget.moc"
+
+/* these includes are needed for Qt support */
+#include <qpainter.h>
+
+FactorizedWidget::FactorizedWidget(QWidget * parent, const char * name, const uintList para_factors) :
+			FractionBaseWidget(parent, name), m_factors(para_factors)
+{
+#ifdef DEBUG
+	kdDebug() << "constructor FactorizedWidget" << endl;
+#endif
+}
+
+FactorizedWidget::~FactorizedWidget()
+{
+#ifdef DEBUG
+	kdDebug() << "destructor FactorizedWidget" << endl;
+#endif
+}
+
+void FactorizedWidget::setFactors(const uintList para_factors)
+{
+	m_factors = para_factors;
+	update();
+}
+
+void FactorizedWidget::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;
+
+	int fontWidth; // to store the width of the last thing painted
+
+	// 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(fm.lineSpacing());
+	setMaximumHeight(fm.lineSpacing());
+
+	QString tmpStr;
+	int fontHeight = fm.lineSpacing(); // get the font height
+
+	for (uint tmpInt = 0; tmpInt < m_factors.count(); tmpInt++)
+	{
+		// set color for operation sign
+		pen.setColor(m_colorOperation);
+		paint.setPen(pen);
+
+		if (tmpInt == 0)
+		{
+			fontWidth = fm.width("=");
+			paint.drawText(x_pos, 0, fontWidth, fontHeight, AlignCenter, "=");
+			x_pos += fontWidth;
+			x_pos += _MARGIN_X;
+		} else {
+			fontWidth = fm.width("*");
+			paint.drawText(x_pos, 0, fontWidth, fontHeight, AlignCenter, "*");
+			x_pos += fontWidth;
+			x_pos += _MARGIN_X;
+		}
+
+		// set color for number
+		pen.setColor(m_colorNumber);
+		paint.setPen(pen);
+
+		tmpStr.setNum(m_factors[tmpInt]);
+
+		fontWidth = fm.width(tmpStr);
+		paint.drawText(x_pos, 0, fontWidth, fontHeight, AlignCenter, tmpStr);
+		x_pos += fontWidth;
+		x_pos += _MARGIN_X;
+	}
+
+	// stop the painter
+	paint.end();
+
+	// the space we needed for painting is the minimum width of the widget
+	setMinimumWidth(x_pos);
+
+	return;
+}