mirror of
https://github.com/sqlitebrowser/sqlitebrowser.git
synced 2026-01-20 02:50:46 -06:00
93cdbd0f80
Introduce a new option in the Preferences dialog for setting the delay time which the filter widgets are waiting for before applying the newly set value. Also reduce the default delay time from 300 to 200 ms. See issue #490.
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
#include "FilterLineEdit.h"
|
|
#include "PreferencesDialog.h"
|
|
|
|
#include <QTimer>
|
|
#include <QKeyEvent>
|
|
|
|
FilterLineEdit::FilterLineEdit(QWidget* parent, QList<FilterLineEdit*>* filters, int columnnum) : QLineEdit(parent), filterList(filters), columnNumber(columnnum)
|
|
{
|
|
setPlaceholderText(tr("Filter"));
|
|
#if QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)
|
|
setClearButtonEnabled(true);
|
|
#endif
|
|
setProperty("column", columnnum); // Store the column number for later use
|
|
|
|
// Introduce a timer for delaying the signal triggered whenever the user changes the filter value.
|
|
// The idea here is that the textChanged() event isn't connected to the update filter slot directly anymore
|
|
// but instead there this timer mechanism in between: whenever the user changes the filter the delay timer
|
|
// is (re)started. As soon as the user stops typing the timer has a chance to trigger and call the
|
|
// delayedSignalTimerTriggered() method which then stops the timer and emits the delayed signal.
|
|
delaySignalTimer = new QTimer(this);
|
|
delaySignalTimer->setInterval(PreferencesDialog::getSettingsValue("databrowser", "filter_delay").toInt()); // This is the milliseconds of not-typing we want to wait before triggering
|
|
connect(this, SIGNAL(textChanged(QString)), delaySignalTimer, SLOT(start()));
|
|
connect(delaySignalTimer, SIGNAL(timeout()), this, SLOT(delayedSignalTimerTriggered()));
|
|
|
|
// Immediately emit the delayed filter value changed signal if the user presses the enter or the return key or
|
|
// the line edit widget loses focus
|
|
connect(this, SIGNAL(editingFinished()), this, SLOT(delayedSignalTimerTriggered()));
|
|
}
|
|
|
|
void FilterLineEdit::delayedSignalTimerTriggered()
|
|
{
|
|
// Stop the timer first to avoid triggering in intervals
|
|
delaySignalTimer->stop();
|
|
|
|
// Emit the delayed signal using the current value
|
|
emit delayedTextChanged(text());
|
|
}
|
|
|
|
void FilterLineEdit::keyReleaseEvent(QKeyEvent* event)
|
|
{
|
|
if(event->key() == Qt::Key_Tab)
|
|
{
|
|
if(columnNumber < filterList->size() - 1)
|
|
{
|
|
filterList->at(columnNumber + 1)->setFocus();
|
|
event->accept();
|
|
}
|
|
} else if(event->key() == Qt::Key_Backtab) {
|
|
if(columnNumber > 0)
|
|
{
|
|
filterList->at(columnNumber - 1)->setFocus();
|
|
event->accept();
|
|
}
|
|
}
|
|
}
|
|
|
|
void FilterLineEdit::clear()
|
|
{
|
|
// When programatically clearing the line edit's value make sure the effects are applied immediately, i.e.
|
|
// bypass the delayed signal timer
|
|
QLineEdit::clear();
|
|
delayedSignalTimerTriggered();
|
|
}
|
|
|
|
void FilterLineEdit::setText(const QString& text)
|
|
{
|
|
// When programatically setting the line edit's value make sure the effects are applied immediately, i.e.
|
|
// bypass the delayed signal timer
|
|
QLineEdit::setText(text);
|
|
delayedSignalTimerTriggered();
|
|
}
|