itsmattkc
81c1922911
This makes the node system somewhat more high-level with the intent of making working with them far more flexible and stable. By making the architecture more abstracted, it becomes far less rigid which should allow us to do even more with it and make it much less crash prone.
135 lines
3.7 KiB
C++
135 lines
3.7 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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{
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}
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bool NodeInputDragger::IsStarted() const
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{
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return input_.IsValid();
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}
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void NodeInputDragger::Start(const NodeKeyframeTrackReference &input, const rational &time)
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{
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Q_ASSERT(!IsStarted());
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// Set up new drag
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input_ = input;
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time_ = time;
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Node* node = input_.input().node();
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// Cache current value
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start_value_ = node->GetSplitValueAtTimeOnTrack(input_, time);
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// Determine whether we are creating a keyframe or not
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if (input_.input().IsKeyframing()) {
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dragging_key_ = node->GetKeyframeAtTimeOnTrack(input_, time);
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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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node->GetBestKeyframeTypeForTimeOnTrack(input_, time),
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input_.track(),
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input_.input().element(),
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input_.input().input(),
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node);
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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(IsStarted());
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Node* node = input_.input().node();
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const QString& input = input_.input().input();
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if (node->HasInputProperty(input, QStringLiteral("min"))) {
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// Assumes the value is a double of some kind
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double min = node->GetInputProperty(input, QStringLiteral("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 (node->HasInputProperty(input, QStringLiteral("max"))) {
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double max = node->GetInputProperty(input, QStringLiteral("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_.input().IsKeyframing()) {
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dragging_key_->set_value(value);
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} else {
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node->SetSplitStandardValueOnTrack(input_, value);
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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_.input().node()->IsInputKeyframing(input_.input())) {
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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_.input().node(), 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_, end_value_, start_value_));
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}
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Core::instance()->undo_stack()->push(command);
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input_.Reset();
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}
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}
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