polarchartaxis.cpp
140 lines
| 4.3 KiB
| text/x-c
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Miikka Heikkinen
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r2854 | /**************************************************************************** | ||
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r2483 | ** | ||
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r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
| ** Contact: https://www.qt.io/licensing/ | ||||
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r2483 | ** | ||
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r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
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r2483 | ** | ||
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r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
Titta Heikkala
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r2845 | ** Commercial License Usage | ||
| ** Licensees holding valid commercial Qt licenses may use this file in | ||||
| ** accordance with the commercial license agreement provided with the | ||||
| ** Software or, alternatively, in accordance with the terms contained in | ||||
| ** a written agreement between you and The Qt Company. For licensing terms | ||||
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r2854 | ** and conditions see https://www.qt.io/terms-conditions. For further | ||
| ** information use the contact form at https://www.qt.io/contact-us. | ||||
| ** | ||||
| ** GNU General Public License Usage | ||||
| ** Alternatively, this file may be used under the terms of the GNU | ||||
| ** General Public License version 3 or (at your option) any later version | ||||
| ** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
| ** included in the packaging of this file. Please review the following | ||||
| ** information to ensure the GNU General Public License requirements will | ||||
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
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r2483 | ** | ||
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r2845 | ** $QT_END_LICENSE$ | ||
| ** | ||||
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r2854 | ****************************************************************************/ | ||
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r2483 | |||
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r2714 | #include <private/polarchartaxis_p.h> | ||
| #include <private/qabstractaxis_p.h> | ||||
| #include <private/chartpresenter_p.h> | ||||
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r2795 | #include <QtCharts/QValueAxis> | ||
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r2483 | |||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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r2483 | |||
| PolarChartAxis::PolarChartAxis(QAbstractAxis *axis, QGraphicsItem *item, bool intervalAxis) | ||||
| : ChartAxisElement(axis, item, intervalAxis) | ||||
| { | ||||
| } | ||||
| PolarChartAxis::~PolarChartAxis() | ||||
| { | ||||
| } | ||||
| void PolarChartAxis::setGeometry(const QRectF &axis, const QRectF &grid) | ||||
| { | ||||
| Q_UNUSED(grid); | ||||
| setAxisGeometry(axis); | ||||
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r2836 | if (isEmpty()) { | ||
| prepareGeometryChange(); | ||||
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r2483 | return; | ||
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r2836 | } | ||
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r2483 | |||
| QVector<qreal> layout = calculateLayout(); | ||||
| updateLayout(layout); | ||||
| } | ||||
| QRectF PolarChartAxis::gridGeometry() const | ||||
| { | ||||
| return QRectF(); | ||||
| } | ||||
| void PolarChartAxis::updateLayout(QVector<qreal> &layout) | ||||
| { | ||||
| int diff = ChartAxisElement::layout().size() - layout.size(); | ||||
| if (animation()) { | ||||
| switch (presenter()->state()) { | ||||
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r2504 | case ChartPresenter::ZoomInState: | ||
| case ChartPresenter::ZoomOutState: | ||||
| case ChartPresenter::ScrollUpState: | ||||
| case ChartPresenter::ScrollLeftState: | ||||
| case ChartPresenter::ScrollDownState: | ||||
| case ChartPresenter::ScrollRightState: | ||||
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r2483 | case ChartPresenter::ShowState: | ||
| animation()->setAnimationType(AxisAnimation::DefaultAnimation); | ||||
| break; | ||||
| } | ||||
| // Update to "old" geometry before starting animation to avoid incorrectly sized | ||||
| // axes lingering in wrong position compared to series plot before animation can kick in. | ||||
| // Note that the position mismatch still exists even with this update, but it will be | ||||
| // far less ugly. | ||||
| updateGeometry(); | ||||
| } | ||||
| if (diff > 0) | ||||
| deleteItems(diff); | ||||
| else if (diff < 0) | ||||
| createItems(-diff); | ||||
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r2795 | updateMinorTickItems(); | ||
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r2483 | if (animation()) { | ||
| animation()->setValues(ChartAxisElement::layout(), layout); | ||||
| presenter()->startAnimation(animation()); | ||||
| } else { | ||||
| setLayout(layout); | ||||
| updateGeometry(); | ||||
| } | ||||
| } | ||||
| bool PolarChartAxis::isEmpty() | ||||
| { | ||||
| return !axisGeometry().isValid() || qFuzzyIsNull(min() - max()); | ||||
| } | ||||
| void PolarChartAxis::deleteItems(int count) | ||||
| { | ||||
| QList<QGraphicsItem *> gridLines = gridItems(); | ||||
| QList<QGraphicsItem *> labels = labelItems(); | ||||
| QList<QGraphicsItem *> shades = shadeItems(); | ||||
| QList<QGraphicsItem *> axis = arrowItems(); | ||||
| for (int i = 0; i < count; ++i) { | ||||
| if (gridItems().size() == 1 || (((gridLines.size() + 1) % 2) && gridLines.size() > 0)) | ||||
| delete(shades.takeLast()); | ||||
| delete(gridLines.takeLast()); | ||||
| delete(labels.takeLast()); | ||||
| delete(axis.takeLast()); | ||||
| } | ||||
| } | ||||
| void PolarChartAxis::handleShadesBrushChanged(const QBrush &brush) | ||||
| { | ||||
| foreach (QGraphicsItem *item, shadeItems()) | ||||
| static_cast<QGraphicsPathItem *>(item)->setBrush(brush); | ||||
| } | ||||
| void PolarChartAxis::handleShadesPenChanged(const QPen &pen) | ||||
| { | ||||
| foreach (QGraphicsItem *item, shadeItems()) | ||||
| static_cast<QGraphicsPathItem *>(item)->setPen(pen); | ||||
| } | ||||
| #include "moc_polarchartaxis_p.cpp" | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||