1 files changed, 72 insertions, 0 deletions
diff --git a/widget.cpp b/widget.cpp
new file mode 100644
index 0000000..c7b6375
--- /dev/null
+++ b/widget.cpp
@@ -0,0 +1,72 @@
+#include "widget.h"
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QDateTimeEdit>
+#include <QProcess>
+#include <QPushButton>
+#include <QApplication>
+#include <QDialogButtonBox>
+
+Widget::Widget(const QStringList &photos, const QString &dir, const QString &clockPhoto, QWidget *parent) : QDialog(parent)
+{
+	QProcess p;
+	p.start("exiv2", QStringList() << clockPhoto << "-K" << "Exif.Image.DateTime" << "-Pv", QProcess::ReadOnly);
+	p.waitForFinished(-1);
+	const QDateTime clockDate = QDateTime::fromString(p.readAllStandardOutput(), "yyyy:MM:dd HH:mm:ss\n");
+	setWindowTitle(tr("Clock Photo Time Adjuster"));
+	QVBoxLayout *layout = new QVBoxLayout;
+	if (photos.count() == 1)
+		layout->addWidget(new QLabel(tr("Adjusting dates for: <pre>%1</pre>").arg(photos.at(0))));
+	else
+		layout->addWidget(new QLabel(tr("Adjusting dates for %1 photos in: <pre>%2</pre>").arg(photos.count()).arg(dir)));
+	QLabel *image = new QLabel;
+	image->setPixmap(QPixmap(clockPhoto).scaledToWidth(800, Qt::SmoothTransformation));
+	layout->addWidget(image);
+	QDateTimeEdit *date = new QDateTimeEdit;
+	date->setDisplayFormat("MMMM d, yyyy HH:mm:ss");
+	date->setDateTime(clockDate);
+	layout->addWidget(date);
+	const QString defaultText = tr("Choose the date and time of the clock photo above.");
+	QLabel *adjustment = new QLabel(defaultText);
+	layout->addWidget(adjustment);
+	QDialogButtonBox *buttons = new QDialogButtonBox(QDialogButtonBox::Apply | QDialogButtonBox::Cancel);
+	buttons->button(QDialogButtonBox::Apply)->setText(tr("&Adjust dates"));
+	buttons->button(QDialogButtonBox::Apply)->setEnabled(false);
+	layout->addWidget(buttons);
+	setLayout(layout);
+
+	connect(date, &QDateTimeEdit::dateTimeChanged, this, [=]() {
+		qint64 diff = date->dateTime().secsTo(clockDate);
+		qint64 days = qAbs(diff) / 86400;
+		QTime difference = QTime(0, 0).addSecs(qAbs(diff) % 86400);
+		if (diff != 0) {
+			adjustment->setText(QString("%1 %2 days, %3 hours, %4 minutes, %5 seconds").arg(diff < 0 ? tr("Add") : tr("Subtract")).arg(days).arg(difference.hour()).arg(difference.minute()).arg(difference.second()));
+			buttons->button(QDialogButtonBox::Apply)->setEnabled(true);
+		} else {
+			adjustment->setText(defaultText);
+			buttons->button(QDialogButtonBox::Apply)->setEnabled(false);
+		}
+	});
+
+	connect(buttons, &QDialogButtonBox::accepted, this, [=]() {
+		qint64 diff = clockDate.secsTo(date->dateTime());
+		QString what;
+		if (diff < 0)
+			what += "-";
+		diff = qAbs(diff);
+		qint64 hours = diff / (60 * 60);
+		diff = diff % (60 * 60);
+		qint64 minutes = diff / 60;
+		qint64 seconds = diff % 60;
+		what += QString("%1:%2:%3").arg(hours, 2, 10, QChar('0')).arg(minutes, 2, 10, QChar('0')).arg(seconds, 2, 10, QChar('0'));
+		QProcess p;
+		p.setWorkingDirectory(dir);
+		p.start("exiv2", QStringList() << "-a" << what << photos);
+		p.waitForFinished(-1);
+		p.start("exiv2", QStringList() << "-T" << photos);
+		p.waitForFinished(-1);
+		close();
+	});
+
+	connect(buttons, &QDialogButtonBox::rejected, this, &QDialog::close);
+}