1 files changed, 168 insertions, 0 deletions
diff --git a/kcalc/kcalc_button.cpp b/kcalc/kcalc_button.cpp
new file mode 100644
index 0000000..7021a1a
--- /dev/null
+++ b/kcalc/kcalc_button.cpp
@@ -0,0 +1,168 @@
+/*
+    kCalculator, a simple scientific calculator for KDE
+
+    Copyright (C) 1996-2000 Bernd Johannes Wuebben
+                            wuebben@kde.org
+
+    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.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+*/
+
+#include <qsimplerichtext.h>
+#include <qtooltip.h>
+#include <qpainter.h>
+
+
+#include "qdom.h"
+
+#include "kcalc_button.h"
+
+
+KCalcButton::KCalcButton(QWidget * parent, const char * name)
+  : KPushButton(parent, name), _show_accel_mode(false),
+    _mode_flags(ModeNormal)
+{
+  setAutoDefault(false);
+}
+
+KCalcButton::KCalcButton(const QString &label, QWidget * parent,
+			 const char * name, const QString &tooltip)
+  : KPushButton(label, parent, name), _show_accel_mode(false), _mode_flags(ModeNormal)
+{
+  setAutoDefault(false);
+  addMode(ModeNormal, label, tooltip);
+}
+
+void KCalcButton::addMode(ButtonModeFlags mode, QString label, QString tooltip, bool is_label_richtext)
+{
+  if (_mode.contains(mode)) _mode.remove(mode);
+
+  _mode[mode] = ButtonMode(label, tooltip, is_label_richtext);
+
+  // Need to put each button into default mode first
+  if(mode == ModeNormal) slotSetMode(ModeNormal, true);
+}
+
+void KCalcButton::slotSetMode(ButtonModeFlags mode, bool flag)
+{
+  ButtonModeFlags new_mode;
+
+  if (flag) { // if the specified mode is to be set (i.e. flag = true)
+  	new_mode = ButtonModeFlags(_mode_flags | mode);
+  } else if (_mode_flags && mode) { // if the specified mode is to be cleared (i.e. flag = false)
+  	new_mode = ButtonModeFlags(_mode_flags - mode);
+  } else {
+  	return; // nothing to do
+  }
+
+  if (_mode.contains(new_mode)) {
+    // save accel, because setting label erases accel
+    QKeySequence _accel = accel();
+
+    if(_mode[new_mode].is_label_richtext)
+      _label = _mode[new_mode].label;
+    else
+      setText(_mode[new_mode].label);
+	QToolTip::remove(this);
+    QToolTip::add(this, _mode[new_mode].tooltip);
+    _mode_flags = new_mode;
+
+    // restore accel
+    setAccel(_accel);
+  }
+
+  // this is necessary for people pressing CTRL and changing mode at
+  // the same time...
+  if (_show_accel_mode) slotSetAccelDisplayMode(true);
+  
+  update();
+}
+
+static QString escape(QString str)
+{
+  str.replace('&', "&&");
+  return str;
+}
+
+
+void KCalcButton::slotSetAccelDisplayMode(bool flag)
+{
+  _show_accel_mode = flag;
+
+  // save accel, because setting label erases accel
+  QKeySequence _accel = accel();
+  
+  if (flag == true) {
+    setText(escape(QString(accel())));
+  } else {
+    setText(_mode[_mode_flags].label);
+  }
+
+  // restore accel
+  setAccel(_accel);
+}
+
+void KCalcButton::paintLabel(QPainter *paint)
+{
+  if (_mode[_mode_flags].is_label_richtext) {
+    QSimpleRichText _text(_label, font());
+    _text.draw(paint, width()/2-_text.width()/2, 0, childrenRegion(), colorGroup());
+  } else {
+    KPushButton::drawButtonLabel(paint);
+  }
+}
+
+void KCalcButton::drawButtonLabel(QPainter *paint)
+{
+  if (_show_accel_mode) {
+    KPushButton::drawButtonLabel(paint);
+  } else if (_mode.contains(_mode_flags)) {
+    paintLabel(paint);
+  }
+}
+
+
+void KSquareButton::paintLabel(QPainter *paint)
+{
+  int w = width();
+  int w2 = w/2 - 13;
+  int h = height();
+  int h2 = h/2 - 7;
+  // in some KDE-styles (.NET, Phase,...) we have to set the painter back to the right color
+  paint->setPen(foregroundColor());
+  // these statements are for the improved
+  // representation of the sqrt function
+  paint->drawLine(w2, 11 + h2, w2 + 2, 7 + h2);
+  paint->drawLine(w2 + 2, 7 + h2, w2 + 4, 14 + h2);
+  paint->drawLine(w2 + 4, 14 + h2, w2 + 6, 1 + h2);
+  paint->drawLine(w2 + 6, 1 + h2, w2 + 27, 1 + h2);
+  paint->drawLine(w2 + 27, 1 + h2, w2 + 27, 4 + h2);
+  // add a three for the cube root
+  if (_mode_flags & ModeInverse) {
+    paint->drawText(w2-2, 9 + h2, "ł");
+  }
+}
+
+void KSquareButton::drawButtonLabel(QPainter *paint)
+{
+  if (_show_accel_mode) {
+    KPushButton::drawButtonLabel(paint);
+  } else if (_mode.contains(_mode_flags)) {
+    paintLabel(paint);
+  }
+}
+
+#include "kcalc_button.moc"
+