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Diffstat (limited to 'src/charts/axis/cartesianchartaxis.cpp')
| -rw-r--r-- | src/charts/axis/cartesianchartaxis.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/charts/axis/cartesianchartaxis.cpp b/src/charts/axis/cartesianchartaxis.cpp new file mode 100644 index 00000000..d067921d --- /dev/null +++ b/src/charts/axis/cartesianchartaxis.cpp @@ -0,0 +1,198 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the Qt Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "cartesianchartaxis_p.h" +#include "qabstractaxis.h" +#include "qabstractaxis_p.h" +#include "chartpresenter_p.h" +#include "abstractchartlayout_p.h" +#include "abstractdomain_p.h" +#include "linearrowitem_p.h" +#include <QValueAxis> +#include <QLogValueAxis> +#include <QGraphicsLayout> +#include <QTextDocument> + +QT_CHARTS_BEGIN_NAMESPACE + +CartesianChartAxis::CartesianChartAxis(QAbstractAxis *axis, QGraphicsItem *item , bool intervalAxis) + : ChartAxisElement(axis, item, intervalAxis) +{ + Q_ASSERT(item); +} + + +CartesianChartAxis::~CartesianChartAxis() +{ +} + +void CartesianChartAxis::createItems(int count) +{ + if (arrowItems().size() == 0) { + QGraphicsLineItem *arrow = new LineArrowItem(this, this); + arrow->setPen(axis()->linePen()); + arrowGroup()->addToGroup(arrow); + } + + if (intervalAxis() && gridItems().size() == 0) { + for (int i = 0 ; i < 2 ; i ++){ + QGraphicsLineItem *item = new QGraphicsLineItem(this); + item->setPen(axis()->gridLinePen()); + gridGroup()->addToGroup(item); + } + } + + QGraphicsTextItem *title = titleItem(); + title->setFont(axis()->titleFont()); + title->setDefaultTextColor(axis()->titleBrush().color()); + title->setHtml(axis()->titleText()); + + for (int i = 0; i < count; ++i) { + QGraphicsLineItem *arrow = new QGraphicsLineItem(this); + QGraphicsLineItem *grid = new QGraphicsLineItem(this); + QGraphicsTextItem *label = new QGraphicsTextItem(this); + label->document()->setDocumentMargin(ChartPresenter::textMargin()); + arrow->setPen(axis()->linePen()); + grid->setPen(axis()->gridLinePen()); + label->setFont(axis()->labelsFont()); + label->setDefaultTextColor(axis()->labelsBrush().color()); + label->setRotation(axis()->labelsAngle()); + arrowGroup()->addToGroup(arrow); + gridGroup()->addToGroup(grid); + labelGroup()->addToGroup(label); + + if ((gridItems().size()) % 2 && gridItems().size() > 2) { + QGraphicsRectItem* shades = new QGraphicsRectItem(this); + shades->setPen(axis()->shadesPen()); + shades->setBrush(axis()->shadesBrush()); + shadeGroup()->addToGroup(shades); + } + } + +} + +void CartesianChartAxis::deleteItems(int count) +{ + QList<QGraphicsItem *> lines = gridItems(); + QList<QGraphicsItem *> labels = labelItems(); + QList<QGraphicsItem *> shades = shadeItems(); + QList<QGraphicsItem *> axis = arrowItems(); + + for (int i = 0; i < count; ++i) { + if (lines.size() % 2 && lines.size() > 1) + delete(shades.takeLast()); + delete(lines.takeLast()); + delete(labels.takeLast()); + delete(axis.takeLast()); + } +} + +void CartesianChartAxis::updateLayout(QVector<qreal> &layout) +{ + int diff = ChartAxisElement::layout().size() - layout.size(); + + if (diff > 0) + deleteItems(diff); + else if (diff < 0) + createItems(-diff); + + if (animation()) { + switch (presenter()->state()) { + case ChartPresenter::ZoomInState: + animation()->setAnimationType(AxisAnimation::ZoomInAnimation); + animation()->setAnimationPoint(presenter()->statePoint()); + break; + case ChartPresenter::ZoomOutState: + animation()->setAnimationType(AxisAnimation::ZoomOutAnimation); + animation()->setAnimationPoint(presenter()->statePoint()); + break; + case ChartPresenter::ScrollUpState: + case ChartPresenter::ScrollLeftState: + animation()->setAnimationType(AxisAnimation::MoveBackwordAnimation); + break; + case ChartPresenter::ScrollDownState: + case ChartPresenter::ScrollRightState: + animation()->setAnimationType(AxisAnimation::MoveForwardAnimation); + break; + case ChartPresenter::ShowState: + animation()->setAnimationType(AxisAnimation::DefaultAnimation); + break; + } + animation()->setValues(ChartAxisElement::layout(), layout); + presenter()->startAnimation(animation()); + } else { + setLayout(layout); + updateGeometry(); + } +} + +bool CartesianChartAxis::isEmpty() +{ + return axisGeometry().isEmpty() + || gridGeometry().isEmpty() + || qFuzzyCompare(min(), max()); +} + +void CartesianChartAxis::setGeometry(const QRectF &axis, const QRectF &grid) +{ + m_gridRect = grid; + setAxisGeometry(axis); + + if (isEmpty()) + return; + + QVector<qreal> layout = calculateLayout(); + updateLayout(layout); +} + +QSizeF CartesianChartAxis::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const +{ + Q_UNUSED(which); + Q_UNUSED(constraint); + return QSizeF(); +} + +void CartesianChartAxis::handleArrowPenChanged(const QPen &pen) +{ + foreach (QGraphicsItem *item, arrowItems()) + static_cast<QGraphicsLineItem *>(item)->setPen(pen); +} + +void CartesianChartAxis::handleGridPenChanged(const QPen &pen) +{ + foreach (QGraphicsItem *item, gridItems()) + static_cast<QGraphicsLineItem *>(item)->setPen(pen); +} + +void CartesianChartAxis::handleShadesBrushChanged(const QBrush &brush) +{ + foreach (QGraphicsItem *item, shadeItems()) + static_cast<QGraphicsRectItem *>(item)->setBrush(brush); +} + +void CartesianChartAxis::handleShadesPenChanged(const QPen &pen) +{ + foreach (QGraphicsItem *item, shadeItems()) + static_cast<QGraphicsRectItem *>(item)->setPen(pen); +} + +#include "moc_cartesianchartaxis_p.cpp" + +QT_CHARTS_END_NAMESPACE |