diff options
Diffstat (limited to 'src/common/gui/number_gui.cpp')
-rw-r--r-- | src/common/gui/number_gui.cpp | 72 |
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; + } +} |