92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "ratiodialog.h"
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#include <QCoreApplication>
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#include <QMessageBox>
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namespace olive {
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double GetFloatRatioFromUser(QWidget* parent,
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const QString& title,
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bool* ok_in)
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{
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QString s;
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forever {
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bool ok;
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s = QInputDialog::getText(parent,
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title,
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QCoreApplication::translate("RatioDialog", "Enter custom ratio (e.g. \"4:3\", \"16/9\", etc.):"),
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QLineEdit::Normal,
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s,
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&ok);
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if (!ok) {
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// User cancelled dialog, do nothing
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if (ok_in) {
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*ok_in = false;
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}
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return qSNaN();
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}
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QStringList ratio_components = s.split(QRegExp(QStringLiteral(":|;|\\/")));
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if (ratio_components.size() == 1) {
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bool float_ok;
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double flt = ratio_components.at(0).toDouble(&float_ok);
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if (float_ok && flt > 0) {
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if (ok_in) {
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*ok_in = true;
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}
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return flt;
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}
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} else if (ratio_components.size() == 2) {
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bool numer_ok, denom_ok;
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double num = ratio_components.at(0).toDouble(&numer_ok);
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double den = ratio_components.at(1).toDouble(&denom_ok);
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if (numer_ok
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&& denom_ok
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&& num > 0
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&& den > 0) {
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// Exit loop and set this ratio
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if (ok_in) {
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*ok_in = true;
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}
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return num / den;
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}
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}
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QMessageBox::warning(parent,
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QCoreApplication::translate("RatioDialog", "Invalid custom ratio"),
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QCoreApplication::translate("RatioDialog", "Failed to parse \"%1\" into an aspect ratio. Please format a "
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"rational fraction with a ':' or a '/' separator.").arg(s),
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QMessageBox::Ok);
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}
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}
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}
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