diff options
Diffstat (limited to 'attic/muse_qt4_evolution/awl/sigedit.cpp')
| -rw-r--r-- | attic/muse_qt4_evolution/awl/sigedit.cpp | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/attic/muse_qt4_evolution/awl/sigedit.cpp b/attic/muse_qt4_evolution/awl/sigedit.cpp new file mode 100644 index 00000000..6493ad6c --- /dev/null +++ b/attic/muse_qt4_evolution/awl/sigedit.cpp @@ -0,0 +1,224 @@ +//============================================================================= +// Awl +// Audio Widget Library +// $Id:$ +// +// Copyright (C) 2002-2006 by Werner Schweer and others +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2. +// +// 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., 675 Mass Ave, Cambridge, MA 02139, USA. +//============================================================================= + +#include "al/al.h" +#include "awl.h" +#include "sigedit.h" +#include "al/sig.h" + +namespace Awl { + + using AL::sigmap; + +//--------------------------------------------------------- +// SigEdit +//--------------------------------------------------------- + +SigEdit::SigEdit(QWidget* parent) + : QAbstractSpinBox(parent) + { + initialized = false; + setReadOnly(false); + setMinimumWidth(100); //TD: sizeHint + lineEdit()->setInputMask("99/99"); + } + +SigEdit::~SigEdit() + { + } + +//--------------------------------------------------------- +// event +// filter Tab and Backtab key events +//--------------------------------------------------------- + +bool SigEdit::event(QEvent* event) + { + if (event->type() == QEvent::KeyPress) { + QKeyEvent* ke = static_cast<QKeyEvent*>(event); + int segment = curSegment(); + if (ke->key() == Qt::Key_Backtab) { + if (segment == 2) { + lineEdit()->setSelection(5, 2); + return true; + } + if (segment == 1) { + lineEdit()->setSelection(0, 4); + return true; + } + } + if (ke->key() == Qt::Key_Tab) { + if (segment == 0) { + lineEdit()->setSelection(5, 2); + return true; + } + if (segment == 1) { + lineEdit()->setSelection(8, 3); + return true; + } + } + } + else if (event->type() == QEvent::FocusIn) { + QFocusEvent* fe = static_cast<QFocusEvent*>(event); + QAbstractSpinBox::focusInEvent(fe); + int segment = curSegment(); + switch(segment) { + case 0: lineEdit()->setSelection(0,4); break; + case 1: lineEdit()->setSelection(5,2); break; + case 2: lineEdit()->setSelection(8,3); break; + } + return true; + } + return QAbstractSpinBox::event(event); + } + +//--------------------------------------------------------- +// setValue +//--------------------------------------------------------- + +void SigEdit::setValue(const AL::TimeSignature& s) + { + _sig = s; + updateValue(); + } + +//--------------------------------------------------------- +// updateValue +//--------------------------------------------------------- + +void SigEdit::updateValue() + { + char buffer[64]; + sprintf(buffer, "%d/%d", _sig.z, _sig.n); + lineEdit()->setText(buffer); + } + +//--------------------------------------------------------- +// stepEnables +//--------------------------------------------------------- + +QAbstractSpinBox::StepEnabled SigEdit::stepEnabled() const + { + int segment = curSegment(); + QAbstractSpinBox::StepEnabled en = QAbstractSpinBox::StepUpEnabled | QAbstractSpinBox::StepDownEnabled; + + switch (segment) { + case 0: + if (_sig.z == 1) + en &= ~QAbstractSpinBox::StepDownEnabled; + break; + case 1: + if (_sig.n == 1) + en &= ~QAbstractSpinBox::StepDownEnabled; + break; + } + return en; + } + +//--------------------------------------------------------- +// fixup +//--------------------------------------------------------- + +void SigEdit::fixup(QString& input) const + { + printf("fixup <%s>\n", input.toLatin1().data()); + } + +//--------------------------------------------------------- +// validate +//--------------------------------------------------------- + +QValidator::State SigEdit::validate(QString&,int&) const + { + // TODO + // printf("validate\n"); + return QValidator::Acceptable; + } + +//--------------------------------------------------------- +// curSegment +//--------------------------------------------------------- + +int SigEdit::curSegment() const + { + QLineEdit* le = lineEdit(); + int pos = le->cursorPosition(); + int segment = -1; + + if (pos >= 0 && pos <= 4) + segment = 0; + else if (pos >= 5 && pos <= 7) + segment = 1; + else if (pos >= 8) + segment = 2; + else + printf("curSegment = -1, pos %d\n", pos); + return segment; + } + +//--------------------------------------------------------- +// stepBy +//--------------------------------------------------------- + +void SigEdit::stepBy(int steps) + { + int segment = curSegment(); + int selPos; + int selLen; + + bool changed = false; + AL::TimeSignature osig(_sig); + + switch(segment) { + case 0: + _sig.z += steps; + if (_sig.z < 1) + _sig.z = 1; + selPos = 0; + selLen = 2; + break; + case 1: + _sig.n += steps; + if (_sig.n < 1) + _sig.n = 1; + selPos = 3; + selLen = 2; + break; + default: + return; + } + if (osig.z != _sig.z || osig.n != _sig.n) { + changed = true; + } + if (changed) { + updateValue(); + emit valueChanged(_sig); + } + lineEdit()->setSelection(selPos, selLen); + } + + void SigEdit::paintEvent(QPaintEvent* event) { + if (!initialized) + updateValue(); + initialized = true; + QAbstractSpinBox::paintEvent(event); + } +} + |