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oak-editor/app/node/block/block.cpp
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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, see <http://www.gnu.org/licenses/>.
***/
#include "block.h"
#include <QDebug>
#include "node/inputdragger.h"
#include "node/output/track/track.h"
#include "transition/transition.h"
#include "widget/slider/rationalslider.h"
namespace olive {
#define super Node
const QString Block::kLengthInput = QStringLiteral("length_in");
Block::Block() :
previous_(nullptr),
next_(nullptr),
track_(nullptr),
index_(-1)
{
AddInput(kLengthInput, NodeValue::kRational, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable | kInputFlagHidden));
SetInputProperty(kLengthInput, QStringLiteral("min"), QVariant::fromValue(rational(0, 1)));
SetInputProperty(kLengthInput, QStringLiteral("view"), RationalSlider::kTime);
SetInputProperty(kLengthInput, QStringLiteral("viewlock"), true);
SetInputFlags(kEnabledInput, InputFlags(GetInputFlags(kEnabledInput) | kInputFlagNotConnectable | kInputFlagNotKeyframable));
SetFlags(kDontShowInParamView);
}
QVector<Node::CategoryID> Block::Category() const
{
return {kCategoryTimeline};
}
rational Block::length() const
{
return GetStandardValue(kLengthInput).value<rational>();
}
void Block::set_length_and_media_out(const rational &length)
{
if (length == this->length()) {
return;
}
set_length_internal(length);
}
void Block::set_length_and_media_in(const rational &length)
{
if (length == this->length()) {
return;
}
// Set the length without setting media out
set_length_internal(length);
}
bool Block::is_enabled() const
{
return GetStandardValue(kEnabledInput).toBool();
}
void Block::set_enabled(bool e)
{
SetStandardValue(kEnabledInput, e);
emit EnabledChanged();
}
void Block::InputValueChangedEvent(const QString &input, int element)
{
super::InputValueChangedEvent(input, element);
if (input == kLengthInput) {
emit LengthChanged();
} else if (input == kEnabledInput) {
emit EnabledChanged();
}
}
void Block::set_length_internal(const rational &length)
{
SetStandardValue(kLengthInput, QVariant::fromValue(length));
}
void Block::Retranslate()
{
super::Retranslate();
SetInputName(kLengthInput, tr("Length"));
SetInputName(kEnabledInput, tr("Enabled"));
}
void Block::InvalidateCache(const TimeRange& range, const QString& from, int element, InvalidateCacheOptions options)
{
TimeRange r;
if (from == kLengthInput) {
// We must intercept the signal here
r = TimeRange(qMin(length(), last_length_), RATIONAL_MAX);
if (!NodeInputDragger::IsInputBeingDragged()) {
last_length_ = length();
}
options.insert(QStringLiteral("lengthevent"), true);
} else {
r = range;
}
super::InvalidateCache(r, from, element, options);
}
}