132 lines
3.4 KiB
C++
132 lines
3.4 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 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 "inputdragger.h"
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#include "core.h"
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#include "node.h"
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#include "widget/nodeparamview/nodeparamviewundo.h"
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namespace olive {
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NodeInputDragger::NodeInputDragger() :
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input_(nullptr)
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{
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}
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bool NodeInputDragger::IsStarted() const
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{
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return input_;
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}
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void NodeInputDragger::Start(NodeInput *input, const rational &time, int track, int element)
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{
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Q_ASSERT(!input_);
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// Set up new drag
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input_ = input;
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time_ = time;
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track_ = track;
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element_ = element;
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// Cache current value
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start_value_ = input_->GetValueAtTimeForTrack(time, track, element_);
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// Determine whether we are creating a keyframe or not
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if (input_->IsKeyframing(element_)) {
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dragging_key_ = input_->GetKeyframeAtTimeOnTrack(time, track, element_);
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drag_created_key_ = !dragging_key_;
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if (drag_created_key_) {
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dragging_key_ = new NodeKeyframe(time,
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start_value_,
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input_->GetBestKeyframeTypeForTime(time, track, element_),
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track,
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element_,
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input_);
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}
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}
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}
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void NodeInputDragger::Drag(QVariant value)
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{
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Q_ASSERT(input_);
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if (input_->property("min").isValid()) {
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// Assumes the value is a double of some kind
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double min = input_->property("min").toDouble();
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double v = value.toDouble();
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if (v < min) {
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value = min;
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}
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}
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if (input_->property("max").isValid()) {
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double max = input_->property("max").toDouble();
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double v = value.toDouble();
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if (v > max) {
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value = max;
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}
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}
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end_value_ = value;
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//input_->blockSignals(true);
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if (input_->IsKeyframing(element_)) {
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dragging_key_->set_value(value);
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} else {
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input_->SetStandardValueOnTrack(value, track_, element_);
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}
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//input_->blockSignals(false);
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}
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void NodeInputDragger::End()
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{
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if (!IsStarted()) {
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return;
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}
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MultiUndoCommand* command = new MultiUndoCommand();
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if (input_->IsKeyframing(element_)) {
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if (drag_created_key_) {
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// We created a keyframe in this process
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command->add_child(new NodeParamInsertKeyframeCommand(input_, dragging_key_));
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}
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// We just set a keyframe's value
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// We do this even when inserting a keyframe because we don't actually perform an insert in this undo command
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// so this will ensure the ValueChanged() signal is sent correctly
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command->add_child(new NodeParamSetKeyframeValueCommand(dragging_key_, end_value_, start_value_));
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} else {
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// We just set the standard value
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command->add_child(new NodeParamSetStandardValueCommand(input_, track_, element_, end_value_, start_value_));
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}
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Core::instance()->undo_stack()->push(command);
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input_ = nullptr;
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}
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}
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