legendmarkeritem.cpp
215 lines
| 6.2 KiB
| text/x-c
|
CppLexer
Miikka Heikkinen
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r2854 | /**************************************************************************** | ||
Titta Heikkala
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r2845 | ** | ||
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Miikka Heikkinen
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r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
| ** Contact: https://www.qt.io/licensing/ | ||||
|
Titta Heikkala
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r2845 | ** | ||
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Miikka Heikkinen
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r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
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Titta Heikkala
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r2845 | ** | ||
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Miikka Heikkinen
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r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
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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 | ||||
|
Miikka Heikkinen
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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. | ||||
|
Titta Heikkala
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r2845 | ** | ||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
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Miikka Heikkinen
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r2854 | ****************************************************************************/ | ||
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Titta Heikkala
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r2714 | #include <QtGui/QPainter> | ||
| #include <QtWidgets/QGraphicsSceneEvent> | ||||
| #include <QtWidgets/QGraphicsTextItem> | ||||
| #include <QtGui/QTextDocument> | ||||
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r2714 | #include <QtCharts/QLegend> | ||
| #include <private/qlegend_p.h> | ||||
| #include <QtCharts/QLegendMarker> | ||||
| #include <private/qlegendmarker_p.h> | ||||
| #include <private/legendmarkeritem_p.h> | ||||
| #include <private/chartpresenter_p.h> | ||||
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r2167 | |||
Titta Heikkala
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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r2164 | |||
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r2167 | LegendMarkerItem::LegendMarkerItem(QLegendMarkerPrivate *marker, QGraphicsObject *parent) : | ||
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r2164 | QGraphicsObject(parent), | ||
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r2167 | m_marker(marker), | ||
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r2164 | m_markerRect(0,0,10.0,10.0), | ||
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r2170 | m_boundingRect(0,0,0,0), | ||
Miikka Heikkinen
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r2539 | m_textItem(new QGraphicsTextItem(this)), | ||
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r2164 | m_rectItem(new QGraphicsRectItem(this)), | ||
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Miikka Heikkinen
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r2592 | m_margin(3), | ||
| m_space(4), | ||||
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r2210 | m_hovering(false), | ||
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r2189 | m_pressPos(0, 0) | ||
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r2164 | { | ||
| m_rectItem->setRect(m_markerRect); | ||||
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Miikka Heikkinen
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r2592 | m_textItem->document()->setDocumentMargin(ChartPresenter::textMargin()); | ||
Jani Honkonen
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r2241 | setAcceptHoverEvents(true); | ||
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r2210 | } | ||
| LegendMarkerItem::~LegendMarkerItem() | ||||
| { | ||||
| if (m_hovering) { | ||||
| emit m_marker->q_ptr->hovered(false); | ||||
| } | ||||
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r2164 | } | ||
| void LegendMarkerItem::setPen(const QPen &pen) | ||||
| { | ||||
| m_rectItem->setPen(pen); | ||||
| } | ||||
| QPen LegendMarkerItem::pen() const | ||||
| { | ||||
| return m_rectItem->pen(); | ||||
| } | ||||
| void LegendMarkerItem::setBrush(const QBrush &brush) | ||||
| { | ||||
| m_rectItem->setBrush(brush); | ||||
| } | ||||
| QBrush LegendMarkerItem::brush() const | ||||
| { | ||||
| return m_rectItem->brush(); | ||||
| } | ||||
| void LegendMarkerItem::setFont(const QFont &font) | ||||
| { | ||||
| m_textItem->setFont(font); | ||||
| QFontMetrics fn(font); | ||||
| m_markerRect = QRectF(0,0,fn.height()/2,fn.height()/2); | ||||
| updateGeometry(); | ||||
| } | ||||
| QFont LegendMarkerItem::font() const | ||||
| { | ||||
| return m_textItem->font(); | ||||
| } | ||||
| void LegendMarkerItem::setLabel(const QString label) | ||||
| { | ||||
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r2174 | m_label = label; | ||
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r2164 | updateGeometry(); | ||
| } | ||||
| QString LegendMarkerItem::label() const | ||||
| { | ||||
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r2174 | return m_label; | ||
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r2164 | } | ||
| void LegendMarkerItem::setLabelBrush(const QBrush &brush) | ||||
| { | ||||
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Miikka Heikkinen
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r2539 | m_textItem->setDefaultTextColor(brush.color()); | ||
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r2164 | } | ||
| QBrush LegendMarkerItem::labelBrush() const | ||||
| { | ||||
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Miikka Heikkinen
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r2539 | return QBrush(m_textItem->defaultTextColor()); | ||
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r2164 | } | ||
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r2193 | void LegendMarkerItem::setGeometry(const QRectF &rect) | ||
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r2164 | { | ||
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r2544 | qreal width = rect.width(); | ||
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Miikka Heikkinen
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r2539 | qreal x = m_margin + m_markerRect.width() + m_space + m_margin; | ||
| QRectF truncatedRect; | ||||
Andy Shaw
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r2864 | const QString html = ChartPresenter::truncatedText(m_textItem->font(), m_label, qreal(0.0), | ||
| width - x, rect.height(), truncatedRect); | ||||
| m_textItem->setHtml(html); | ||||
| if (m_marker->m_legend->showToolTips() && html != m_label) | ||||
| m_textItem->setToolTip(m_label); | ||||
| else | ||||
| m_textItem->setToolTip(QString()); | ||||
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Titta Heikkala
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r2607 | m_textItem->setTextWidth(truncatedRect.width()); | ||
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Miikka Heikkinen
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r2539 | qreal y = qMax(m_markerRect.height() + 2 * m_margin, truncatedRect.height() + 2 * m_margin); | ||
| const QRectF &textRect = m_textItem->boundingRect(); | ||||
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r2539 | m_textItem->setPos(x - m_margin, y / 2 - textRect.height() / 2); | ||
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r2164 | m_rectItem->setRect(m_markerRect); | ||
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Miikka Heikkinen
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r2592 | // The textMargin adjustments to position are done to make default case rects less blurry with anti-aliasing | ||
| m_rectItem->setPos(m_margin - ChartPresenter::textMargin(), y / 2.0 - m_markerRect.height() / 2.0 + ChartPresenter::textMargin()); | ||||
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r2164 | |||
| prepareGeometryChange(); | ||||
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Miikka Heikkinen
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r2539 | m_boundingRect = QRectF(0, 0, x + textRect.width() + m_margin, y); | ||
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r2164 | } | ||
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r2168 | QRectF LegendMarkerItem::boundingRect() const | ||
| { | ||||
| return m_boundingRect; | ||||
| } | ||||
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r2164 | void LegendMarkerItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||
| { | ||||
| Q_UNUSED(option) | ||||
| Q_UNUSED(widget) | ||||
| Q_UNUSED(painter) | ||||
| } | ||||
| QSizeF LegendMarkerItem::sizeHint(Qt::SizeHint which, const QSizeF& constraint) const | ||||
| { | ||||
| Q_UNUSED(constraint) | ||||
| QSizeF sh; | ||||
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Miikka Heikkinen
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r2544 | switch (which) { | ||
| case Qt::MinimumSize: { | ||||
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Titta Heikkala
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r2712 | QRectF labelRect = ChartPresenter::textBoundingRect(m_textItem->font(), | ||
| QStringLiteral("...")); | ||||
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Miikka Heikkinen
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r2544 | sh = QSizeF(labelRect.width() + (2.0 * m_margin) + m_space + m_markerRect.width(), | ||
| qMax(m_markerRect.height(), labelRect.height()) + (2.0 * m_margin)); | ||||
| break; | ||||
| } | ||||
| case Qt::PreferredSize: { | ||||
| QRectF labelRect = ChartPresenter::textBoundingRect(m_textItem->font(), m_label); | ||||
| sh = QSizeF(labelRect.width() + (2.0 * m_margin) + m_space + m_markerRect.width(), | ||||
| qMax(m_markerRect.height(), labelRect.height()) + (2.0 * m_margin)); | ||||
| break; | ||||
| } | ||||
| default: | ||||
| break; | ||||
| } | ||||
| return sh; | ||||
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r2164 | } | ||
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r2210 | void LegendMarkerItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) | ||
| { | ||||
| Q_UNUSED(event) | ||||
| m_hovering = true; | ||||
| emit m_marker->q_ptr->hovered(true); | ||||
| } | ||||
| void LegendMarkerItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) | ||||
| { | ||||
| Q_UNUSED(event) | ||||
| m_hovering = false; | ||||
| emit m_marker->q_ptr->hovered(false); | ||||
| } | ||||
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Andy Shaw
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r2864 | QString LegendMarkerItem::displayedLabel() const | ||
| { | ||||
| return m_textItem->toHtml(); | ||||
| } | ||||
| void LegendMarkerItem::setToolTip(const QString &tip) | ||||
| { | ||||
| m_textItem->setToolTip(tip); | ||||
| } | ||||
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r2210 | |||
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r2164 | #include "moc_legendmarkeritem_p.cpp" | ||
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Titta Heikkala
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r2712 | QT_CHARTS_END_NAMESPACE | ||