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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <private/cartesianchartaxis_p.h>
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#include <QtCharts/QAbstractAxis>
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#include <private/qabstractaxis_p.h>
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#include <private/chartpresenter_p.h>
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#include <private/abstractchartlayout_p.h>
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#include <private/abstractdomain_p.h>
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#include <private/linearrowitem_p.h>
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#include <QtCharts/QValueAxis>
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#include <QtCharts/QLogValueAxis>
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#include <QtWidgets/QGraphicsLayout>
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#include <QtGui/QTextDocument>
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QT_CHARTS_BEGIN_NAMESPACE
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CartesianChartAxis::CartesianChartAxis(QAbstractAxis *axis, QGraphicsItem *item , bool intervalAxis)
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: ChartAxisElement(axis, item, intervalAxis)
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{
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Q_ASSERT(item);
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}
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CartesianChartAxis::~CartesianChartAxis()
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{
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}
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void CartesianChartAxis::createItems(int count)
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{
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if (arrowItems().size() == 0) {
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QGraphicsLineItem *arrow = new LineArrowItem(this, this);
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arrow->setPen(axis()->linePen());
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arrowGroup()->addToGroup(arrow);
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}
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if (intervalAxis() && gridItems().size() == 0) {
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for (int i = 0 ; i < 2 ; i ++){
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QGraphicsLineItem *item = new QGraphicsLineItem(this);
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item->setPen(axis()->gridLinePen());
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gridGroup()->addToGroup(item);
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QGraphicsRectItem *shades = new QGraphicsRectItem(this);
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shades->setPen(axis()->shadesPen());
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shades->setBrush(axis()->shadesBrush());
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shadeGroup()->addToGroup(shades);
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}
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}
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QGraphicsTextItem *title = titleItem();
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title->setFont(axis()->titleFont());
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title->setDefaultTextColor(axis()->titleBrush().color());
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title->setHtml(axis()->titleText());
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for (int i = 0; i < count; ++i) {
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QGraphicsLineItem *arrow = new QGraphicsLineItem(this);
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QGraphicsLineItem *grid = new QGraphicsLineItem(this);
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QGraphicsTextItem *label = new QGraphicsTextItem(this);
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label->document()->setDocumentMargin(ChartPresenter::textMargin());
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arrow->setPen(axis()->linePen());
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grid->setPen(axis()->gridLinePen());
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label->setFont(axis()->labelsFont());
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label->setDefaultTextColor(axis()->labelsBrush().color());
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label->setRotation(axis()->labelsAngle());
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arrowGroup()->addToGroup(arrow);
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gridGroup()->addToGroup(grid);
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labelGroup()->addToGroup(label);
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if (gridItems().size() == 1 || (((gridItems().size() + 1) % 2) && gridItems().size() > 0)) {
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QGraphicsRectItem *shades = new QGraphicsRectItem(this);
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shades->setPen(axis()->shadesPen());
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shades->setBrush(axis()->shadesBrush());
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shadeGroup()->addToGroup(shades);
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}
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}
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}
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void CartesianChartAxis::updateMinorTickItems()
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{
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QValueAxis *valueAxis = qobject_cast<QValueAxis *>(this->axis());
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if (valueAxis) {
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int currentCount = minorArrowItems().size();
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int expectedCount = valueAxis->minorTickCount() * (valueAxis->tickCount() - 1);
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int diff = expectedCount - currentCount;
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if (diff > 0) {
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for (int i = 0; i < diff; i++) {
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QGraphicsLineItem *minorArrow = new QGraphicsLineItem(this);
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QGraphicsLineItem *minorGrid = new QGraphicsLineItem(this);
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minorArrow->setPen(valueAxis->linePen());
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minorGrid->setPen(valueAxis->minorGridLinePen());
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minorArrowGroup()->addToGroup(minorArrow);
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minorGridGroup()->addToGroup(minorGrid);
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}
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} else {
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QList<QGraphicsItem *> minorGridLines = minorGridItems();
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QList<QGraphicsItem *> minorArrows = minorArrowItems();
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for (int i = 0; i > diff; i--) {
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if (!minorGridLines.isEmpty())
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delete(minorGridLines.takeLast());
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if (!minorArrows.isEmpty())
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delete(minorArrows.takeLast());
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}
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}
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}
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}
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void CartesianChartAxis::deleteItems(int count)
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{
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QList<QGraphicsItem *> lines = gridItems();
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QList<QGraphicsItem *> labels = labelItems();
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QList<QGraphicsItem *> shades = shadeItems();
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QList<QGraphicsItem *> axis = arrowItems();
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for (int i = 0; i < count; ++i) {
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if (lines.size() == 1 || (((lines.size() + 1) % 2) && lines.size() > 0))
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delete(shades.takeLast());
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delete(lines.takeLast());
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delete(labels.takeLast());
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delete(axis.takeLast());
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}
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}
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void CartesianChartAxis::updateLayout(QVector<qreal> &layout)
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{
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int diff = ChartAxisElement::layout().size() - layout.size();
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if (diff > 0)
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deleteItems(diff);
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else if (diff < 0)
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createItems(-diff);
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updateMinorTickItems();
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if (animation()) {
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switch (presenter()->state()) {
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case ChartPresenter::ZoomInState:
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animation()->setAnimationType(AxisAnimation::ZoomInAnimation);
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animation()->setAnimationPoint(presenter()->statePoint());
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break;
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case ChartPresenter::ZoomOutState:
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animation()->setAnimationType(AxisAnimation::ZoomOutAnimation);
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animation()->setAnimationPoint(presenter()->statePoint());
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break;
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case ChartPresenter::ScrollUpState:
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case ChartPresenter::ScrollLeftState:
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animation()->setAnimationType(AxisAnimation::MoveBackwordAnimation);
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break;
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case ChartPresenter::ScrollDownState:
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case ChartPresenter::ScrollRightState:
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animation()->setAnimationType(AxisAnimation::MoveForwardAnimation);
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break;
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case ChartPresenter::ShowState:
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animation()->setAnimationType(AxisAnimation::DefaultAnimation);
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break;
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}
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animation()->setValues(ChartAxisElement::layout(), layout);
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presenter()->startAnimation(animation());
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} else {
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setLayout(layout);
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updateGeometry();
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}
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}
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bool CartesianChartAxis::isEmpty()
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{
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return axisGeometry().isEmpty()
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|| gridGeometry().isEmpty()
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|| qFuzzyCompare(min(), max());
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}
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void CartesianChartAxis::setGeometry(const QRectF &axis, const QRectF &grid)
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{
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m_gridRect = grid;
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setAxisGeometry(axis);
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if (isEmpty()) {
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prepareGeometryChange();
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return;
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}
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QVector<qreal> layout = calculateLayout();
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updateLayout(layout);
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}
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QSizeF CartesianChartAxis::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
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{
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Q_UNUSED(which);
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Q_UNUSED(constraint);
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return QSizeF();
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}
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void CartesianChartAxis::handleArrowPenChanged(const QPen &pen)
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{
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foreach (QGraphicsItem *item, arrowItems())
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static_cast<QGraphicsLineItem *>(item)->setPen(pen);
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}
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void CartesianChartAxis::handleGridPenChanged(const QPen &pen)
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{
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foreach (QGraphicsItem *item, gridItems())
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static_cast<QGraphicsLineItem *>(item)->setPen(pen);
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}
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void CartesianChartAxis::handleMinorArrowPenChanged(const QPen &pen)
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{
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foreach (QGraphicsItem *item, minorArrowItems())
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static_cast<QGraphicsLineItem *>(item)->setPen(pen);
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}
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void CartesianChartAxis::handleMinorGridPenChanged(const QPen &pen)
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{
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foreach (QGraphicsItem *item, minorGridItems())
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static_cast<QGraphicsLineItem *>(item)->setPen(pen);
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}
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void CartesianChartAxis::handleGridLineColorChanged(const QColor &color)
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{
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foreach (QGraphicsItem *item, gridItems()) {
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QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem *>(item);
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QPen pen = lineItem->pen();
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pen.setColor(color);
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lineItem->setPen(pen);
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}
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}
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void CartesianChartAxis::handleMinorGridLineColorChanged(const QColor &color)
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{
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foreach (QGraphicsItem *item, minorGridItems()) {
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QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem *>(item);
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QPen pen = lineItem->pen();
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pen.setColor(color);
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lineItem->setPen(pen);
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}
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}
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void CartesianChartAxis::handleShadesBrushChanged(const QBrush &brush)
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{
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foreach (QGraphicsItem *item, shadeItems())
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static_cast<QGraphicsRectItem *>(item)->setBrush(brush);
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}
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void CartesianChartAxis::handleShadesPenChanged(const QPen &pen)
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{
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foreach (QGraphicsItem *item, shadeItems())
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static_cast<QGraphicsRectItem *>(item)->setPen(pen);
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}
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#include "moc_cartesianchartaxis_p.cpp"
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QT_CHARTS_END_NAMESPACE
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