legendmarker.cpp
252 lines
| 7.1 KiB
| text/x-c
|
CppLexer
Jani Honkonen
|
r794 | /**************************************************************************** | ||
Michal Klocek
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r855 | ** | ||
| ** Copyright (C) 2012 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 Commercial Charts Add-on. | ||||
| ** | ||||
| ** $QT_BEGIN_LICENSE$ | ||||
| ** Licensees holding valid Qt Commercial licenses may use this file in | ||||
| ** accordance with the Qt Commercial 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
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r547 | #include "legendmarker_p.h" | ||
|
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r938 | #include "qxyseries.h" | ||
| #include "qxyseries_p.h" | ||||
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r855 | #include "qlegend.h" | ||
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r1586 | #include "qabstractbarseries.h" | ||
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r855 | #include "qpieseries.h" | ||
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r938 | #include "qpieslice.h" | ||
| #include "qbarset.h" | ||||
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r953 | #include "qbarset_p.h" | ||
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r938 | #include "qareaseries.h" | ||
| #include "qareaseries_p.h" | ||||
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r547 | #include <QPainter> | ||
| #include <QGraphicsSceneEvent> | ||||
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r626 | #include <QGraphicsSimpleTextItem> | ||
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r2085 | #include <QGraphicsLayout> | ||
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r547 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
Tero Ahola
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r1328 | LegendMarker::LegendMarker(QAbstractSeries *series, QLegend *legend) : | ||
| QGraphicsObject(legend), | ||||
| m_series(series), | ||||
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Jani Honkonen
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r2097 | m_markerRect(0, 0, 10.0, 10.0), | ||
| m_boundingRect(0, 0, 0, 0), | ||||
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Tero Ahola
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r1328 | m_legend(legend), | ||
| m_textItem(new QGraphicsSimpleTextItem(this)), | ||||
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Michal Klocek
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r1534 | m_rectItem(new QGraphicsRectItem(this)), | ||
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Michal Klocek
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r1965 | m_margin(4), | ||
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r1534 | m_space(4) | ||
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r766 | { | ||
|
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r855 | //setAcceptedMouseButtons(Qt::LeftButton|Qt::RightButton); | ||
| m_rectItem->setRect(m_markerRect); | ||||
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r547 | } | ||
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r766 | void LegendMarker::setPen(const QPen &pen) | ||
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r724 | { | ||
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Tero Ahola
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r1528 | m_rectItem->setPen(pen); | ||
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r724 | } | ||
| QPen LegendMarker::pen() const | ||||
| { | ||||
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Tero Ahola
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r1528 | return m_rectItem->pen(); | ||
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r724 | } | ||
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r766 | void LegendMarker::setBrush(const QBrush &brush) | ||
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r547 | { | ||
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r855 | m_rectItem->setBrush(brush); | ||
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r547 | } | ||
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r565 | QBrush LegendMarker::brush() const | ||
| { | ||||
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r855 | return m_rectItem->brush(); | ||
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r565 | } | ||
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r1522 | void LegendMarker::setFont(const QFont &font) | ||
| { | ||||
| m_textItem->setFont(font); | ||||
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r1539 | QFontMetrics fn(font); | ||
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r2097 | m_markerRect = QRectF(0, 0, fn.height() / 2, fn.height() / 2); | ||
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r1536 | updateGeometry(); | ||
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r2088 | m_legend->layout()->invalidate(); | ||
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r1522 | } | ||
| QFont LegendMarker::font() const | ||||
| { | ||||
| return m_textItem->font(); | ||||
| } | ||||
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r1429 | void LegendMarker::setLabel(const QString label) | ||
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r547 | { | ||
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r1965 | m_text = label; | ||
| updateGeometry(); | ||||
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r2085 | m_legend->layout()->invalidate(); | ||
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r547 | } | ||
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r1534 | QString LegendMarker::label() const | ||
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r547 | { | ||
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r1965 | return m_text; | ||
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r547 | } | ||
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r1534 | QRectF LegendMarker::boundingRect() const | ||
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r576 | { | ||
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r1534 | return m_boundingRect; | ||
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r576 | } | ||
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r1527 | void LegendMarker::setLabelBrush(const QBrush &brush) | ||
| { | ||||
| m_textItem->setBrush(brush); | ||||
| } | ||||
| QBrush LegendMarker::labelBrush() const | ||||
| { | ||||
| return m_textItem->brush(); | ||||
| } | ||||
|
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r1534 | |||
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r2104 | void LegendMarker::setGeometry(const QRectF &rect) | ||
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r1534 | { | ||
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r2097 | QFontMetrics fn(font()); | ||
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r1965 | |||
| int width = rect.width(); | ||||
| qreal x = m_margin + m_markerRect.width() + m_space + m_margin; | ||||
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r2097 | qreal y = qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin); | ||
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r1965 | |||
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r2097 | if (fn.boundingRect(m_text).width() + x > width) { | ||
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r1965 | QString string = m_text + "..."; | ||
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Jani Honkonen
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r2097 | while (fn.boundingRect(string).width() + x > width && string.length() > 3) | ||
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r1965 | string.remove(string.length() - 4, 1); | ||
| m_textItem->setText(string); | ||||
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Jani Honkonen
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r2097 | } else { | ||
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r1965 | m_textItem->setText(m_text); | ||
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Jani Honkonen
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r2097 | } | ||
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r1965 | |||
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Jani Honkonen
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r2104 | const QRectF &textRect = m_textItem->boundingRect(); | ||
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r2097 | m_textItem->setPos(x - m_margin, y / 2 - textRect.height() / 2); | ||
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r1539 | m_rectItem->setRect(m_markerRect); | ||
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r2097 | m_rectItem->setPos(m_margin, y / 2 - m_markerRect.height() / 2); | ||
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r1534 | |||
| prepareGeometryChange(); | ||||
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r2097 | m_boundingRect = QRectF(0, 0, x + textRect.width() + m_margin, y); | ||
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Michal Klocek
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r1534 | } | ||
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r547 | void LegendMarker::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||
| { | ||||
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Tero Ahola
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r611 | Q_UNUSED(option) | ||
| Q_UNUSED(widget) | ||||
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Michal Klocek
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r855 | Q_UNUSED(painter) | ||
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r547 | } | ||
|
Jani Honkonen
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r2104 | QSizeF LegendMarker::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const | ||
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r626 | { | ||
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r1534 | Q_UNUSED(constraint) | ||
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r626 | |||
|
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r1534 | QFontMetrics fn(m_textItem->font()); | ||
| QSizeF sh; | ||||
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r626 | |||
|
Jani Honkonen
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r2097 | switch (which) { | ||
| case Qt::MinimumSize: | ||||
| sh = QSizeF(fn.boundingRect("...").width() + 2 * m_margin + m_space + m_markerRect.width(), qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin)); | ||||
| break; | ||||
| case Qt::PreferredSize: | ||||
| sh = QSizeF(fn.boundingRect(m_text).width() + 2 * m_margin + m_space + m_markerRect.width(), qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin)); | ||||
| break; | ||||
| default: | ||||
| break; | ||||
| } | ||||
| return sh; | ||||
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r626 | } | ||
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r547 | void LegendMarker::mousePressEvent(QGraphicsSceneMouseEvent *event) | ||
| { | ||||
|
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r855 | QGraphicsObject::mousePressEvent(event); | ||
|
Michal Klocek
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r1965 | //TODO: selected signal removed for now | ||
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r547 | } | ||
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Michal Klocek
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r855 | ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||
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Jani Honkonen
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r2097 | AreaLegendMarker::AreaLegendMarker(QAreaSeries *series, QLegend *legend) | ||
| : LegendMarker(series, legend), | ||||
| m_series(series) | ||||
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r587 | { | ||
|
Michal Klocek
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r1068 | //QObject::connect(this, SIGNAL(selected()), series, SIGNAL(selected())); | ||
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Jani Honkonen
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r2097 | QObject::connect(series->d_func(), SIGNAL(updated()), this, SLOT(updated())); | ||
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Tero Ahola
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r1328 | QObject::connect(series, SIGNAL(nameChanged()), this, SLOT(updated())); | ||
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Michal Klocek
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r855 | updated(); | ||
| } | ||||
| void AreaLegendMarker::updated() | ||||
| { | ||||
| setBrush(m_series->brush()); | ||||
| setLabel(m_series->name()); | ||||
| } | ||||
| ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
|
Jani Honkonen
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r2097 | BarLegendMarker::BarLegendMarker(QAbstractBarSeries *barseries, QBarSet *barset, QLegend *legend) | ||
| : LegendMarker(barseries, legend), | ||||
| m_barset(barset) | ||||
|
Michal Klocek
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r855 | { | ||
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r1068 | //QObject::connect(this, SIGNAL(selected()),barset->d_ptr.data(), SIGNAL(selected())); | ||
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r1008 | QObject::connect(barset->d_ptr.data(), SIGNAL(updatedBars()), this, SLOT(updated())); | ||
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r2092 | QObject::connect(barset, SIGNAL(labelChanged()), this, SLOT(updated())); | ||
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Michal Klocek
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r855 | updated(); | ||
| } | ||||
| void BarLegendMarker::updated() | ||||
| { | ||||
| setBrush(m_barset->brush()); | ||||
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r1429 | setLabel(m_barset->label()); | ||
|
Michal Klocek
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r855 | } | ||
| ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
|
Jani Honkonen
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r2104 | PieLegendMarker::PieLegendMarker(QPieSeries *series, QPieSlice *pieslice, QLegend *legend) | ||
|
Jani Honkonen
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r2097 | : LegendMarker(series, legend), | ||
| m_pieslice(pieslice) | ||||
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Michal Klocek
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r855 | { | ||
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Jani Honkonen
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r1224 | QObject::connect(pieslice, SIGNAL(labelChanged()), this, SLOT(updated())); | ||
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Jani Honkonen
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r1274 | QObject::connect(pieslice, SIGNAL(brushChanged()), this, SLOT(updated())); | ||
|
Michal Klocek
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r855 | updated(); | ||
| } | ||||
| void PieLegendMarker::updated() | ||||
| { | ||||
| setBrush(m_pieslice->brush()); | ||||
| setLabel(m_pieslice->label()); | ||||
| } | ||||
| ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
|
Jani Honkonen
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r2097 | XYLegendMarker::XYLegendMarker(QXYSeries *series, QLegend *legend) | ||
| : LegendMarker(series, legend), | ||||
| m_series(series) | ||||
|
Michal Klocek
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r855 | { | ||
|
Michal Klocek
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r1068 | //QObject::connect(this, SIGNAL(selected()), series, SIGNAL(selected())); | ||
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Jani Honkonen
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r2097 | QObject::connect(series->d_func(), SIGNAL(updated()), this, SLOT(updated())); | ||
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Tero Ahola
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r1328 | QObject::connect(series, SIGNAL(nameChanged()), this, SLOT(updated())); | ||
|
Michal Klocek
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r855 | updated(); | ||
| } | ||||
| void XYLegendMarker::updated() | ||||
| { | ||||
| setLabel(m_series->name()); | ||||
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Jani Honkonen
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r2097 | if (m_series->type() == QAbstractSeries::SeriesTypeScatter) | ||
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Michal Klocek
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r855 | setBrush(m_series->brush()); | ||
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Jani Honkonen
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r2097 | else | ||
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r855 | setBrush(QBrush(m_series->pen().color())); | ||
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r587 | } | ||
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r547 | #include "moc_legendmarker_p.cpp" | ||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||