cartesianchartaxis.cpp
267 lines
| 8.8 KiB
| text/x-c
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CppLexer
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r2845 | /****************************************************************************** | ||
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r2483 | ** | ||
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r2845 | ** Copyright (C) 2015 The Qt Company Ltd. | ||
** Contact: http://www.qt.io/licensing/ | ||||
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r2483 | ** | ||
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r2740 | ** This file is part of the Qt Charts module. | ||
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r2483 | ** | ||
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r2845 | ** $QT_BEGIN_LICENSE:COMM$ | ||
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r2483 | ** | ||
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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 | ||||
** and conditions see http://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at http://www.qt.io/contact-us. | ||||
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r2483 | ** | ||
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r2845 | ** $QT_END_LICENSE$ | ||
** | ||||
******************************************************************************/ | ||||
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r2483 | |||
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r2714 | #include <private/cartesianchartaxis_p.h> | ||
#include <QtCharts/QAbstractAxis> | ||||
#include <private/qabstractaxis_p.h> | ||||
#include <private/chartpresenter_p.h> | ||||
#include <private/abstractchartlayout_p.h> | ||||
#include <private/abstractdomain_p.h> | ||||
#include <private/linearrowitem_p.h> | ||||
#include <QtCharts/QValueAxis> | ||||
#include <QtCharts/QLogValueAxis> | ||||
#include <QtWidgets/QGraphicsLayout> | ||||
#include <QtGui/QTextDocument> | ||||
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r2483 | |||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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r2483 | |||
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); | ||||
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r2721 | QGraphicsRectItem *shades = new QGraphicsRectItem(this); | ||
shades->setPen(axis()->shadesPen()); | ||||
shades->setBrush(axis()->shadesBrush()); | ||||
shadeGroup()->addToGroup(shades); | ||||
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r2483 | } | ||
} | ||||
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r2608 | QGraphicsTextItem *title = titleItem(); | ||
title->setFont(axis()->titleFont()); | ||||
title->setDefaultTextColor(axis()->titleBrush().color()); | ||||
title->setHtml(axis()->titleText()); | ||||
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r2483 | for (int i = 0; i < count; ++i) { | ||
QGraphicsLineItem *arrow = new QGraphicsLineItem(this); | ||||
QGraphicsLineItem *grid = new QGraphicsLineItem(this); | ||||
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r2539 | QGraphicsTextItem *label = new QGraphicsTextItem(this); | ||
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r2592 | label->document()->setDocumentMargin(ChartPresenter::textMargin()); | ||
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r2483 | arrow->setPen(axis()->linePen()); | ||
grid->setPen(axis()->gridLinePen()); | ||||
label->setFont(axis()->labelsFont()); | ||||
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r2539 | label->setDefaultTextColor(axis()->labelsBrush().color()); | ||
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r2483 | label->setRotation(axis()->labelsAngle()); | ||
arrowGroup()->addToGroup(arrow); | ||||
gridGroup()->addToGroup(grid); | ||||
labelGroup()->addToGroup(label); | ||||
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r2721 | if (gridItems().size() == 1 || (((gridItems().size() + 1) % 2) && gridItems().size() > 0)) { | ||
QGraphicsRectItem *shades = new QGraphicsRectItem(this); | ||||
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r2483 | shades->setPen(axis()->shadesPen()); | ||
shades->setBrush(axis()->shadesBrush()); | ||||
shadeGroup()->addToGroup(shades); | ||||
} | ||||
} | ||||
} | ||||
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r2795 | void CartesianChartAxis::updateMinorTickItems() | ||
{ | ||||
QValueAxis *valueAxis = qobject_cast<QValueAxis *>(this->axis()); | ||||
if (valueAxis) { | ||||
int currentCount = minorArrowItems().size(); | ||||
int expectedCount = valueAxis->minorTickCount() * (valueAxis->tickCount() - 1); | ||||
int diff = expectedCount - currentCount; | ||||
if (diff > 0) { | ||||
for (int i = 0; i < diff; i++) { | ||||
QGraphicsLineItem *minorArrow = new QGraphicsLineItem(this); | ||||
QGraphicsLineItem *minorGrid = new QGraphicsLineItem(this); | ||||
minorArrow->setPen(valueAxis->linePen()); | ||||
minorGrid->setPen(valueAxis->minorGridLinePen()); | ||||
minorArrowGroup()->addToGroup(minorArrow); | ||||
minorGridGroup()->addToGroup(minorGrid); | ||||
} | ||||
} else { | ||||
QList<QGraphicsItem *> minorGridLines = minorGridItems(); | ||||
QList<QGraphicsItem *> minorArrows = minorArrowItems(); | ||||
for (int i = 0; i > diff; i--) { | ||||
if (!minorGridLines.isEmpty()) | ||||
delete(minorGridLines.takeLast()); | ||||
if (!minorArrows.isEmpty()) | ||||
delete(minorArrows.takeLast()); | ||||
} | ||||
} | ||||
} | ||||
} | ||||
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r2483 | 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) { | ||||
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r2721 | if (lines.size() == 1 || (((lines.size() + 1) % 2) && lines.size() > 0)) | ||
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r2483 | 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); | ||||
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r2795 | updateMinorTickItems(); | ||
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r2483 | 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); | ||||
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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); | ||||
} | ||||
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); | ||||
} | ||||
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r2795 | void CartesianChartAxis::handleMinorArrowPenChanged(const QPen &pen) | ||
{ | ||||
foreach (QGraphicsItem *item, minorArrowItems()) | ||||
static_cast<QGraphicsLineItem *>(item)->setPen(pen); | ||||
} | ||||
void CartesianChartAxis::handleMinorGridPenChanged(const QPen &pen) | ||||
{ | ||||
foreach (QGraphicsItem *item, minorGridItems()) | ||||
static_cast<QGraphicsLineItem *>(item)->setPen(pen); | ||||
} | ||||
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r2810 | void CartesianChartAxis::handleGridLineColorChanged(const QColor &color) | ||
{ | ||||
foreach (QGraphicsItem *item, gridItems()) { | ||||
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem *>(item); | ||||
QPen pen = lineItem->pen(); | ||||
pen.setColor(color); | ||||
lineItem->setPen(pen); | ||||
} | ||||
} | ||||
void CartesianChartAxis::handleMinorGridLineColorChanged(const QColor &color) | ||||
{ | ||||
foreach (QGraphicsItem *item, minorGridItems()) { | ||||
QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem *>(item); | ||||
QPen pen = lineItem->pen(); | ||||
pen.setColor(color); | ||||
lineItem->setPen(pen); | ||||
} | ||||
} | ||||
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r2483 | 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" | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||