168 lines
4.4 KiB
C++
168 lines
4.4 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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Modifications Copyright (C) 2025 mikesolar
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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 "matrix.h"
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#include <QMatrix4x4>
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#include <QVector2D>
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#include "widget/slider/floatslider.h"
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namespace olive
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{
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const QString MatrixGenerator::kPositionInput = QStringLiteral("pos_in");
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const QString MatrixGenerator::kRotationInput = QStringLiteral("rot_in");
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const QString MatrixGenerator::kScaleInput = QStringLiteral("scale_in");
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const QString MatrixGenerator::kUniformScaleInput =
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QStringLiteral("uniform_scale_in");
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const QString MatrixGenerator::kAnchorInput = QStringLiteral("anchor_in");
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#define super Node
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MatrixGenerator::MatrixGenerator()
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{
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AddInput(kPositionInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
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AddInput(kRotationInput, NodeValue::kFloat, 0.0);
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AddInput(kScaleInput, NodeValue::kVec2, QVector2D(1.0f, 1.0f));
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SetInputProperty(kScaleInput, QStringLiteral("min"), QVector2D(0, 0));
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SetInputProperty(kScaleInput, QStringLiteral("view"),
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FloatSlider::kPercentage);
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SetInputProperty(kScaleInput, QStringLiteral("disable1"), true);
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AddInput(kUniformScaleInput, NodeValue::kBoolean, true,
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InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));
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AddInput(kAnchorInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
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}
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QString MatrixGenerator::Name() const
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{
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return tr("Orthographic Matrix");
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}
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QString MatrixGenerator::ShortName() const
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{
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return tr("Ortho");
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}
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QString MatrixGenerator::id() const
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{
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return QStringLiteral("org.olivevideoeditor.Olive.ortho");
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}
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QVector<Node::CategoryID> MatrixGenerator::Category() const
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{
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return { kCategoryGenerator, kCategoryMath };
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}
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QString MatrixGenerator::Description() const
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{
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return tr(
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"Generate an orthographic matrix using position, rotation, and scale.");
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}
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void MatrixGenerator::Retranslate()
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{
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super::Retranslate();
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SetInputName(kPositionInput, tr("Position"));
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SetInputName(kRotationInput, tr("Rotation"));
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SetInputName(kScaleInput, tr("Scale"));
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SetInputName(kUniformScaleInput, tr("Uniform Scale"));
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SetInputName(kAnchorInput, tr("Anchor Point"));
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}
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void MatrixGenerator::Value(const NodeValueRow &value,
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const NodeGlobals &globals,
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NodeValueTable *table) const
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{
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// Push matrix output
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QMatrix4x4 mat = GenerateMatrix(value, false, false, false, QMatrix4x4());
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table->Push(NodeValue::kMatrix, mat, this);
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}
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QMatrix4x4 MatrixGenerator::GenerateMatrix(const NodeValueRow &value,
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bool ignore_anchor,
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bool ignore_position,
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bool ignore_scale,
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const QMatrix4x4 &mat) const
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{
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QVector2D anchor;
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QVector2D position;
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QVector2D scale;
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if (!ignore_anchor) {
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anchor = value[kAnchorInput].toVec2();
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}
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if (!ignore_scale) {
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scale = value[kScaleInput].toVec2();
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}
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if (!ignore_position) {
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position = value[kPositionInput].toVec2();
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}
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return GenerateMatrix(position, value[kRotationInput].toDouble(), scale,
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value[kUniformScaleInput].toBool(), anchor, mat);
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}
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QMatrix4x4
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MatrixGenerator::GenerateMatrix(const QVector2D &pos, const float &rot,
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const QVector2D &scale, bool uniform_scale,
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const QVector2D &anchor, QMatrix4x4 mat)
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{
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// Position
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mat.translate(pos.x(), pos.y());
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// Rotation
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mat.rotate(rot, 0, 0, 1);
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// Scale (convert to a QVector3D so that the identity matrix is preserved if all values are 1.0f)
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QVector3D full_scale;
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if (uniform_scale) {
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full_scale = QVector3D(scale.x(), scale.x(), 1.0f);
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} else {
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full_scale = QVector3D(scale, 1.0f);
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}
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mat.scale(full_scale);
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// Anchor Point
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mat.translate(-anchor.x(), -anchor.y());
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return mat;
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}
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void MatrixGenerator::InputValueChangedEvent(const QString &input, int element)
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{
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Q_UNUSED(element)
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if (input == kUniformScaleInput) {
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SetInputProperty(kScaleInput, QStringLiteral("disable1"),
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GetStandardValue(kUniformScaleInput).toBool());
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}
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}
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}
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