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Diffstat (limited to 'src/layout/abstractchartlayout.cpp')
| -rw-r--r-- | src/layout/abstractchartlayout.cpp | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/layout/abstractchartlayout.cpp b/src/layout/abstractchartlayout.cpp deleted file mode 100644 index 4efee721..00000000 --- a/src/layout/abstractchartlayout.cpp +++ /dev/null @@ -1,203 +0,0 @@ -/**************************************************************************** -** -** 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 "abstractchartlayout_p.h" -#include "chartpresenter_p.h" -#include "qlegend_p.h" -#include "chartaxiselement_p.h" -#include "charttitle_p.h" -#include "chartbackground_p.h" -#include <QDebug> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -static const qreal golden_ratio = 0.4; - -AbstractChartLayout::AbstractChartLayout(ChartPresenter *presenter) - : m_presenter(presenter), - m_margins(20, 20, 20, 20), - m_minChartRect(0, 0, 200, 200) -{ -} - -AbstractChartLayout::~AbstractChartLayout() -{ -} - -void AbstractChartLayout::setGeometry(const QRectF &rect) -{ - if (!rect.isValid()) - return; - - if (m_presenter->chart()->isVisible()) { - QList<ChartAxisElement *> axes = m_presenter->axisItems(); - ChartTitle *title = m_presenter->titleElement(); - QLegend *legend = m_presenter->legend(); - ChartBackground *background = m_presenter->backgroundElement(); - - QRectF contentGeometry = calculateBackgroundGeometry(rect, background); - - contentGeometry = calculateContentGeometry(contentGeometry); - - if (title && title->isVisible()) - contentGeometry = calculateTitleGeometry(contentGeometry, title); - - if (legend->isAttachedToChart() && legend->isVisible()) - contentGeometry = calculateLegendGeometry(contentGeometry, legend); - - contentGeometry = calculateAxisGeometry(contentGeometry, axes); - - m_presenter->setGeometry(contentGeometry); - if (m_presenter->chart()->chartType() == QChart::ChartTypeCartesian) - static_cast<QGraphicsRectItem *>(m_presenter->plotAreaElement())->setRect(contentGeometry); - else - static_cast<QGraphicsEllipseItem *>(m_presenter->plotAreaElement())->setRect(contentGeometry); - } - - QGraphicsLayout::setGeometry(rect); -} - -QRectF AbstractChartLayout::calculateContentGeometry(const QRectF &geometry) const -{ - return geometry.adjusted(m_margins.left(), m_margins.top(), -m_margins.right(), -m_margins.bottom()); -} - -QRectF AbstractChartLayout::calculateContentMinimum(const QRectF &minimum) const -{ - return minimum.adjusted(0, 0, m_margins.left() + m_margins.right(), m_margins.top() + m_margins.bottom()); -} - - -QRectF AbstractChartLayout::calculateBackgroundGeometry(const QRectF &geometry, ChartBackground *background) const -{ - qreal left; - qreal top; - qreal right; - qreal bottom; - getContentsMargins(&left, &top, &right, &bottom); - QRectF backgroundGeometry = geometry.adjusted(left, top, -right, -bottom); - if (background) - background->setRect(backgroundGeometry); - return backgroundGeometry; -} - -QRectF AbstractChartLayout::calculateBackgroundMinimum(const QRectF &minimum) const -{ - qreal left; - qreal top; - qreal right; - qreal bottom; - getContentsMargins(&left, &top, &right, &bottom); - return minimum.adjusted(0, 0, left + right, top + bottom); -} - -QRectF AbstractChartLayout::calculateLegendGeometry(const QRectF &geometry, QLegend *legend) const -{ - QSizeF size = legend->effectiveSizeHint(Qt::PreferredSize, QSizeF(-1, -1)); - QRectF legendRect; - QRectF result; - - switch (legend->alignment()) { - case Qt::AlignTop: { - legendRect = QRectF(geometry.topLeft(), QSizeF(geometry.width(), size.height())); - result = geometry.adjusted(0, legendRect.height(), 0, 0); - break; - } - case Qt::AlignBottom: { - legendRect = QRectF(QPointF(geometry.left(), geometry.bottom() - size.height()), QSizeF(geometry.width(), size.height())); - result = geometry.adjusted(0, 0, 0, -legendRect.height()); - break; - } - case Qt::AlignLeft: { - qreal width = qMin(size.width(), geometry.width() * golden_ratio); - legendRect = QRectF(geometry.topLeft(), QSizeF(width, geometry.height())); - result = geometry.adjusted(width, 0, 0, 0); - break; - } - case Qt::AlignRight: { - qreal width = qMin(size.width(), geometry.width() * golden_ratio); - legendRect = QRectF(QPointF(geometry.right() - width, geometry.top()), QSizeF(width, geometry.height())); - result = geometry.adjusted(0, 0, -width, 0); - break; - } - default: { - legendRect = QRectF(0, 0, 0, 0); - result = geometry; - break; - } - } - - legend->setGeometry(legendRect); - - return result; -} - -QRectF AbstractChartLayout::calculateLegendMinimum(const QRectF &geometry, QLegend *legend) const -{ - QSizeF minSize = legend->effectiveSizeHint(Qt::MinimumSize, QSizeF(-1, -1)); - return geometry.adjusted(0, 0, minSize.width(), minSize.height()); -} - -QRectF AbstractChartLayout::calculateTitleGeometry(const QRectF &geometry, ChartTitle *title) const -{ - title->setGeometry(geometry); - QPointF center = geometry.center() - title->boundingRect().center(); - title->setPos(center.x(), title->pos().y()); - return geometry.adjusted(0, title->boundingRect().height()+1, 0, 0); -} - -QRectF AbstractChartLayout::calculateTitleMinimum(const QRectF &minimum, ChartTitle *title) const -{ - QSizeF min = title->sizeHint(Qt::MinimumSize); - return minimum.adjusted(0, 0, min.width(), min.height()); -} - -QSizeF AbstractChartLayout::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const -{ - Q_UNUSED(constraint); - if (which == Qt::MinimumSize) { - QList<ChartAxisElement *> axes = m_presenter->axisItems(); - ChartTitle *title = m_presenter->titleElement(); - QLegend *legend = m_presenter->legend(); - QRectF minimumRect(0, 0, 0, 0); - minimumRect = calculateBackgroundMinimum(minimumRect); - minimumRect = calculateContentMinimum(minimumRect); - minimumRect = calculateTitleMinimum(minimumRect, title); - minimumRect = calculateLegendMinimum(minimumRect, legend); - minimumRect = calculateAxisMinimum(minimumRect, axes); - return minimumRect.united(m_minChartRect).size().toSize(); - } - return QSize(-1, -1); -} - -void AbstractChartLayout::setMargins(const QMargins &margins) -{ - if (m_margins != margins) { - m_margins = margins; - updateGeometry(); - } -} - -QMargins AbstractChartLayout::margins() const -{ - return m_margins; -} - -QTCOMMERCIALCHART_END_NAMESPACE |