void KSaneOptCombo::comboboxChangedIndex(int i)
{
if (m_combo && (m_combo->currentText() == m_currentText)) {
return;
}
unsigned char data[4];
void *dataPtr;
switch (m_optDesc->type) {
case SANE_TYPE_INT:
case SANE_TYPE_FIXED:
fromSANE_Word(data, m_optDesc->constraint.word_list[i + 1]);
dataPtr = data;
break;
case SANE_TYPE_STRING:
dataPtr = (void *)m_optDesc->constraint.string_list[i];
break;
default:
qDebug() << "can not handle type:" << m_optDesc->type;
return;
}
writeData(dataPtr);
readValue();
emit valueChanged();
}
void KSaneOptSlider::sliderChanged(int val)
{
if (val == m_iVal) return;
unsigned char data[4];
m_iVal = val;
fromSANE_Word(data, val);
writeData(data);
}
bool KSaneOptCombo::setValue(float value)
{
unsigned char data[4];
float tmp;
float minDiff;
int i;
int minIndex = 1;
switch (m_optDesc->type) {
case SANE_TYPE_INT:
tmp = (float)m_optDesc->constraint.word_list[minIndex];
minDiff = qAbs(value - tmp);
for (i = 2; i <= m_optDesc->constraint.word_list[0]; ++i) {
tmp = (float)m_optDesc->constraint.word_list[i];
if (qAbs(value - tmp) < minDiff) {
minDiff = qAbs(value - tmp);
minIndex = i;
}
}
fromSANE_Word(data, m_optDesc->constraint.word_list[minIndex]);
writeData(data);
readValue();
return (minDiff < 1.0);
case SANE_TYPE_FIXED:
tmp = (float)SANE_UNFIX(m_optDesc->constraint.word_list[minIndex]);
minDiff = qAbs(value - tmp);
for (i = 2; i <= m_optDesc->constraint.word_list[0]; ++i) {
tmp = (float)SANE_UNFIX(m_optDesc->constraint.word_list[i]);
if (qAbs(value - tmp) < minDiff) {
minDiff = qAbs(value - tmp);
minIndex = i;
}
}
fromSANE_Word(data, m_optDesc->constraint.word_list[minIndex]);
writeData(data);
readValue();
return (minDiff < 1.0);
default:
qDebug() << "can not handle type:" << m_optDesc->type;
break;
}
return false;
}
bool KSaneOptCombo::setValue(const QString &val)
{
if (state() == STATE_HIDDEN) {
return false;
}
if (val == m_currentText) {
return true;
}
unsigned char data[4];
void *data_ptr;
SANE_Word fixed;
int i;
float f;
bool ok;
QString tmp;
switch (m_optDesc->type) {
case SANE_TYPE_INT:
tmp = val.left(val.indexOf(QLatin1Char(' '))); // strip the unit
// accept float formating of the string
i = (int)(tmp.toFloat(&ok));
if (ok == false) {
return false;
}
fromSANE_Word(data, i);
data_ptr = data;
break;
case SANE_TYPE_FIXED:
tmp = val.left(val.indexOf(QLatin1Char(' '))); // strip the unit
f = tmp.toFloat(&ok);
if (ok == false) {
return false;
}
fixed = SANE_FIX(f);
fromSANE_Word(data, fixed);
data_ptr = data;
break;
case SANE_TYPE_STRING:
i = 0;
while (m_optDesc->constraint.string_list[i] != 0) {
tmp = getSaneComboString((unsigned char *)m_optDesc->constraint.string_list[i]);
if (val == tmp) {
data_ptr = (void *)m_optDesc->constraint.string_list[i];
break;
}
i++;
}
if (m_optDesc->constraint.string_list[i] == 0) {
return false;
}
break;
default:
qDebug() << "can only handle SANE_TYPE: INT, FIXED and STRING";
return false;
}
writeData(data_ptr);
readValue();
return true;
}
