Added AWL files

1 files changed, 224 insertions, 0 deletions

diff --git a/muse2/awl/sigedit.cpp b/muse2/awl/sigedit.cpp
new file mode 100644
index 00000000..6493ad6c
--- /dev/null
+++ b/muse2/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);
+            }
+}
+