groupedbarchartitem.cpp
87 lines
| 2.9 KiB
| text/x-c
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CppLexer
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r1167 | /**************************************************************************** | ||
| ** | ||||
| ** 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
| #include "groupedbarchartitem_p.h" | ||||
| #include "bar_p.h" | ||||
| #include "barlabel_p.h" | ||||
| #include "qbarset_p.h" | ||||
| #include "qbarseries_p.h" | ||||
| #include "qbarset.h" | ||||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| GroupedBarChartItem::GroupedBarChartItem(QBarSeries *series, ChartPresenter *presenter) : | ||||
| BarChartItem(series, presenter) | ||||
| { | ||||
| } | ||||
| QVector<QRectF> GroupedBarChartItem::calculateLayout() | ||||
| { | ||||
| QVector<QRectF> layout; | ||||
| // Use temporary qreals for accurancy | ||||
| qreal categoryCount = m_series->categoryCount(); | ||||
| qreal setCount = m_series->barsetCount(); | ||||
| // Domain: | ||||
| qreal width = geometry().width(); | ||||
| qreal height = geometry().height(); | ||||
| qreal range = m_domainMaxY - m_domainMinY; | ||||
| qreal scale = (height / range); | ||||
| qreal categoryWidth = width / categoryCount; | ||||
| qreal barWidth = categoryWidth / (setCount+1); | ||||
| int itemIndex(0); | ||||
| for (int category = 0; category < categoryCount; category++) { | ||||
| qreal xPos = categoryWidth * category + barWidth / 2 + geometry().topLeft().x(); | ||||
| qreal yPos = height + scale * m_domainMinY + geometry().topLeft().y(); | ||||
| for (int set = 0; set < setCount; set++) { | ||||
| QBarSet* barSet = m_series->d_func()->barsetAt(set); | ||||
| qreal barHeight = barSet->at(category).y() * scale; | ||||
| Bar* bar = m_bars.at(itemIndex); | ||||
| QRectF rect(xPos, yPos - barHeight, barWidth, barHeight); | ||||
| layout.append(rect); | ||||
| bar->setPen(barSet->pen()); | ||||
| bar->setBrush(barSet->brush()); | ||||
| BarLabel* label = m_labels.at(itemIndex); | ||||
| if (!qFuzzyIsNull(barSet->at(category).y())) { | ||||
| label->setText(QString::number(barSet->at(category).y())); | ||||
| } else { | ||||
| label->setText(QString("")); | ||||
| } | ||||
| label->setPos(xPos + (rect.width()/2 - label->boundingRect().width()/2) | ||||
| ,yPos - barHeight/2 - label->boundingRect().height()/2); | ||||
| label->setFont(barSet->labelFont()); | ||||
| itemIndex++; | ||||
| xPos += barWidth; | ||||
| } | ||||
| } | ||||
| return layout; | ||||
| } | ||||
| #include "moc_groupedbarchartitem_p.cpp" | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||