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posedit.cpp
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//=============================================================================
// Awl
// Audio Widget Library
//
// 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 "posedit.h"
#include "al/sig.h"
namespace Awl {
//---------------------------------------------------------
// PosEdit
//---------------------------------------------------------
PosEdit::PosEdit(QWidget* parent)
: QAbstractSpinBox(parent)
{
initialized = false;
setReadOnly(false);
setSmpte(false);
}
void* PosEdit::operator new(size_t n)
{
void* p = new char[n];
memset(p, 0, n);
return p;
}
PosEdit::~PosEdit()
{
}
QSize PosEdit::sizeHint() const
{
QFontMetrics fm(font());
int fw = style()->pixelMetric(QStyle::PM_SpinBoxFrameWidth);
int h = fm.height() + fw * 2;
int w = fw * 4 + 10; // HACK: 10 = spinbox up/down arrows
if (_smpte)
w += 2 + fm.width('9') * 9 + fm.width(':') * 3 + fw * 4;
else
w += 2 + fm.width('9') * 9 + fm.width('.') * 2 + fw * 4;
return QSize(w, h).expandedTo(QApplication::globalStrut());
}
//---------------------------------------------------------
// event
// filter Tab and Backtab key events
//---------------------------------------------------------
bool PosEdit::event(QEvent* event)
{
if (event->type() == QEvent::KeyPress) {
QKeyEvent* ke = static_cast<QKeyEvent*>(event);
int segment = curSegment();
if (ke->key() == Qt::Key_Backtab) {
if (_smpte) {
if (segment == 3) {
lineEdit()->setSelection(7, 2);
return true;
}
else if (segment == 2) {
lineEdit()->setSelection(4, 2);
return true;
}
else if (segment == 1) {
lineEdit()->setSelection(0, 3);
return true;
}
}
else {
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 (_smpte) {
if (segment == 0) {
lineEdit()->setSelection(4, 2);
return true;
}
else if (segment == 1) {
lineEdit()->setSelection(7, 2);
return true;
}
else if (segment == 2) {
lineEdit()->setSelection(10, 2);
return true;
}
}
else {
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);
}
//---------------------------------------------------------
// setSmpte
//---------------------------------------------------------
void PosEdit::setSmpte(bool f)
{
_smpte = f;
if (_smpte)
lineEdit()->setInputMask("999:99:99:99");
else
lineEdit()->setInputMask("9999.99.999");
updateValue();
}
//---------------------------------------------------------
// setValue
//---------------------------------------------------------
void PosEdit::setValue(const Pos& time)
{
_pos = time;
updateValue();
}
void PosEdit::setValue(const QString& s)
{
Pos time(s);
setValue(time);
}
void PosEdit::setValue(int t)
{
Pos time(t);
setValue(time);
}
//---------------------------------------------------------
// updateValue
//---------------------------------------------------------
void PosEdit::updateValue()
{
char buffer[64];
if (_smpte) {
int minute, sec, frame, subframe;
_pos.msf(&minute, &sec, &frame, &subframe);
sprintf(buffer, "%03d:%02d:%02d:%02d", minute, sec, frame, subframe);
}
else {
int bar, beat;
int tick;
_pos.mbt(&bar, &beat, &tick);
sprintf(buffer, "%04d.%02d.%03d", bar+1, beat+1, tick);
}
lineEdit()->setText(buffer);
}
//---------------------------------------------------------
// stepEnables
//---------------------------------------------------------
QAbstractSpinBox::StepEnabled PosEdit::stepEnabled() const
{
int segment = curSegment();
QAbstractSpinBox::StepEnabled en = QAbstractSpinBox::StepUpEnabled | QAbstractSpinBox::StepDownEnabled;
if (_smpte) {
int minute, sec, frame, subframe;
_pos.msf(&minute, &sec, &frame, &subframe);
switch(segment) {
case 0:
if (minute == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
break;
case 1:
if (sec == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
else if (sec == 59)
en &= ~QAbstractSpinBox::StepUpEnabled;
break;
case 2:
if (frame == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
else if (frame == 23)
en &= ~QAbstractSpinBox::StepUpEnabled;
break;
case 3:
if (subframe == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
else if (subframe == 99)
en &= ~QAbstractSpinBox::StepUpEnabled;
break;
}
}
else {
int bar, beat;
unsigned tick;
sigmap.tickValues(_pos.tick(), &bar, &beat, &tick);
unsigned tb = sigmap.ticksBeat(_pos.tick());
unsigned tm = sigmap.ticksMeasure(_pos.tick());
int bm = tm / tb;
switch (segment) {
case 0:
if (bar == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
break;
case 1:
if (beat == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
else {
if (beat >= (bm-1))
en &= ~QAbstractSpinBox::StepUpEnabled;
}
break;
case 2:
if (tick == 0)
en &= ~QAbstractSpinBox::StepDownEnabled;
else {
if (tick >= (tb-1))
en &= ~QAbstractSpinBox::StepUpEnabled;
}
break;
}
}
return en;
}
//---------------------------------------------------------
// fixup
//---------------------------------------------------------
void PosEdit::fixup(QString& input) const
{
printf("fixup <%s>\n", input.toLatin1().data());
}
//---------------------------------------------------------
// validate
//---------------------------------------------------------
QValidator::State PosEdit::validate(QString&,int&) const
{
// TODO
// printf("validate\n");
return QValidator::Acceptable;
}
//---------------------------------------------------------
// curSegment
//---------------------------------------------------------
int PosEdit::curSegment() const
{
QLineEdit* le = lineEdit();
int pos = le->cursorPosition();
int segment = -1;
if (_smpte) {
if (pos >= 0 && pos <= 3)
segment = 0;
else if (pos >= 4 && pos <= 6)
segment = 1;
else if (pos >= 7 && pos <= 9)
segment = 2;
else if (pos >= 10)
segment = 3;
}
else {
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 PosEdit::stepBy(int steps)
{
int segment = curSegment();
int selPos;
int selLen;
bool changed = false;
if (_smpte) {
int minute, sec, frame, subframe;
_pos.msf(&minute, &sec, &frame, &subframe);
switch(segment) {
case 0:
minute += steps;
if (minute < 0)
minute = 0;
selPos = 0;
selLen = 3;
break;
case 1:
sec += steps;
if (sec < 0)
sec = 0;
if (sec > 59)
sec = 59;
selPos = 4;
selLen = 2;
break;
case 2:
frame += steps;
if (frame < 0)
frame = 0;
if (frame > 24) //TD frame type?
frame = 24;
selPos = 7;
selLen = 2;
break;
case 3:
subframe += steps;
if (subframe < 0)
subframe = 0;
if (subframe > 99)
subframe = 99;
selPos = 10;
selLen = 2;
break;
default:
return;
}
Pos newPos(minute, sec, frame, subframe);
if (!(newPos == _pos)) {
changed = true;
_pos = newPos;
}
}
else {
int bar, beat, tick;
_pos.mbt(&bar, &beat, &tick);
int tb = sigmap.ticksBeat(_pos.tick());
unsigned tm = sigmap.ticksMeasure(_pos.tick());
int bm = tm / tb;
switch(segment) {
case 0:
bar += steps;
if (bar < 0)
bar = 0;
selPos = 0;
selLen = 4;
break;
case 1:
beat += steps;
if (beat < 0)
beat = 0;
else if (beat >= bm)
beat = bm - 1;
selPos = 5;
selLen = 2;
break;
case 2:
tick += steps;
if (tick < 0)
tick = 0;
else if (tick >= tb)
tick = tb -1;
selPos = 8;
selLen = 3;
break;
default:
return;
}
Pos newPos(bar, beat, tick);
if (!(newPos == _pos)) {
changed = true;
_pos = newPos;
}
}
if (changed) {
updateValue();
emit valueChanged(_pos);
}
lineEdit()->setSelection(selPos, selLen);
}
void PosEdit::paintEvent(QPaintEvent* event) {
if (!initialized)
updateValue();
initialized = true;
QAbstractSpinBox::paintEvent(event);
}
}