Added KDE3 version of PikLab

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/piklab@1095639 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 72 insertions, 0 deletions

diff --git a/src/common/gui/number_gui.cpp b/src/common/gui/number_gui.cpp
new file mode 100644
index 0000000..d855407
--- /dev/null
+++ b/src/common/gui/number_gui.cpp
@@ -0,0 +1,72 @@
+/***************************************************************************
+ *   Copyright (C) 2006 Nicolas Hadacek <hadacek@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.                                   *
+ ***************************************************************************/
+#include "number_gui.h"
+
+#include <qfontmetrics.h>
+
+//-----------------------------------------------------------------------------
+uint maxCharWidth(const QString &s, const QFont &font)
+{
+  QFontMetrics fm(font);
+  uint w = 0;
+  for (uint i=0; i<uint(s.length()); i++)
+    w = QMAX(w, uint(fm.width(s[i])));
+  return w;
+}
+
+uint maxCharWidth(NumberBase base, const QFont &font)
+{
+  QString s;
+  for (uint i=0; i<base.data().base; i++) s += toChar(base, i);
+  return maxCharWidth(s, font);
+}
+
+uint maxLabelWidth(NumberBase base, uint nbChars, const QFont &font)
+{
+  uint w = maxStringWidth(base, nbChars, font);
+  QFontMetrics fm(font);
+  if ( base==NumberBase::String ) return w + 2 * fm.width("\"");
+  return w + fm.width(base.data().prefix);
+}
+
+//-----------------------------------------------------------------------------
+NumberLineEdit::NumberLineEdit(QWidget *parent, const char *name)
+  : KLineEdit(parent, name)
+{
+  connect(this, SIGNAL(textChanged(const QString &)), SLOT(textChangedSlot()));
+}
+
+NumberLineEdit::NumberLineEdit(const QString &text, QWidget *parent, const char *name)
+  : KLineEdit(text, parent, name)
+{
+  connect(this, SIGNAL(textChanged(const QString &)), SLOT(textChangedSlot()));
+}
+
+QValidator::State validateNumber(const QString &input)
+{
+  if ( input.isEmpty() ) return QValidator::Intermediate;
+  bool ok;
+  (void)fromAnyLabel(input, &ok);
+  if (ok) return QValidator::Acceptable;
+  FOR_EACH(NumberBase, base)
+    if ( input==base.data().prefix ) return QValidator::Intermediate;
+  if ( input[0]=='\"' ) return QValidator::Intermediate;
+  if ( input[0]=='\'' ) return QValidator::Intermediate;
+  return QValidator::Invalid;
+}
+
+void NumberLineEdit::textChangedSlot()
+{
+  QValidator::State state = validateNumber(text());
+  switch (state) {
+    case QValidator::Acceptable: unsetColor(); break;
+    case QValidator::Intermediate: setColor(QColor("#FF9900")); break;
+    case QValidator::Invalid: setColor(red); break;
+  }
+}