qt-creator/src/plugins/qmldesigner/components/curveeditor/curveeditor.cpp

/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Design Tooling
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#include "curveeditor.h"
#include "curveeditormodel.h"
#include "detail/curveitem.h"
#include "detail/graphicsview.h"
#include "detail/treeview.h"

#include <QDoubleSpinBox>
#include <QHBoxLayout>
#include <QLabel>
#include <QSplitter>
#include <QVBoxLayout>

namespace DesignTools {

CurveEditor::CurveEditor(CurveEditorModel *model, QWidget *parent)
    : QWidget(parent)
    , m_tree(new TreeView(model, this))
    , m_view(new GraphicsView(model))
{
    QSplitter *splitter = new QSplitter;
    splitter->addWidget(m_tree);
    splitter->addWidget(m_view);
    splitter->setStretchFactor(1, 2);

    QVBoxLayout *box = new QVBoxLayout;
    box->addWidget(createToolBar());
    box->addWidget(splitter);
    setLayout(box);

    connect(m_tree, &TreeView::curvesSelected, m_view, &GraphicsView::reset);
}

void CurveEditor::zoomX(double zoom)
{
    m_view->setZoomX(zoom);
}

void CurveEditor::zoomY(double zoom)
{
    m_view->setZoomY(zoom);
}

void CurveEditor::clearCanvas()
{
    m_view->reset(m_tree->selection());
}

QToolBar *CurveEditor::createToolBar()
{
    QToolBar *bar = new QToolBar;
    bar->setFloatable(false);

    QAction *tangentLinearAction = bar->addAction("Linear");
    QAction *tangentStepAction = bar->addAction("Step");
    QAction *tangentSplineAction = bar->addAction("Spline");
    QAction *tangentDefaultAction = bar->addAction("Set Default");

    auto setLinearInterpolation = [this]() {
        m_view->setInterpolation(Keyframe::Interpolation::Linear);
    };
    auto setStepInterpolation = [this]() {
        m_view->setInterpolation(Keyframe::Interpolation::Step);
    };
    auto setSplineInterpolation = [this]() {
        m_view->setInterpolation(Keyframe::Interpolation::Bezier);
    };

    connect(tangentLinearAction, &QAction::triggered, setLinearInterpolation);
    connect(tangentStepAction, &QAction::triggered, setStepInterpolation);
    connect(tangentSplineAction, &QAction::triggered, setSplineInterpolation);

    Q_UNUSED(tangentLinearAction);
    Q_UNUSED(tangentSplineAction);
    Q_UNUSED(tangentStepAction);
    Q_UNUSED(tangentDefaultAction);

    auto *valueBox = new QHBoxLayout;
    valueBox->addWidget(new QLabel(tr("Value")));
    valueBox->addWidget(new QDoubleSpinBox);
    auto *valueWidget = new QWidget;
    valueWidget->setLayout(valueBox);
    bar->addWidget(valueWidget);

    auto *durationBox = new QHBoxLayout;
    durationBox->addWidget(new QLabel(tr("Duration")));
    durationBox->addWidget(new QSpinBox);
    auto *durationWidget = new QWidget;
    durationWidget->setLayout(durationBox);
    bar->addWidget(durationWidget);

    auto *positionBox = new QHBoxLayout;
    positionBox->addWidget(new QLabel(tr("Current Frame")));
    positionBox->addWidget(new QSpinBox);
    auto *positionWidget = new QWidget;
    positionWidget->setLayout(positionBox);
    bar->addWidget(positionWidget);

    return bar;
}

} // End namespace DesignTools.