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Diffstat (limited to 'src/axis/logvalueaxis/chartlogvalueaxisy.cpp')
-rw-r--r-- | src/axis/logvalueaxis/chartlogvalueaxisy.cpp | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/src/axis/logvalueaxis/chartlogvalueaxisy.cpp b/src/axis/logvalueaxis/chartlogvalueaxisy.cpp deleted file mode 100644 index 556ddfe4..00000000 --- a/src/axis/logvalueaxis/chartlogvalueaxisy.cpp +++ /dev/null @@ -1,137 +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 "chartlogvalueaxisy_p.h" -#include "chartpresenter_p.h" -#include "qlogvalueaxis.h" -#include "abstractchartlayout_p.h" -#include <QGraphicsLayout> -#include <qmath.h> -#include <QDebug> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -ChartLogValueAxisY::ChartLogValueAxisY(QLogValueAxis *axis, QGraphicsItem *item) - : VerticalAxis(axis, item), - m_axis(axis) -{ - QObject::connect(m_axis, SIGNAL(baseChanged(qreal)), this, SLOT(handleBaseChanged(qreal))); - QObject::connect(m_axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString))); -} - -ChartLogValueAxisY::~ChartLogValueAxisY() -{ -} - -QVector<qreal> ChartLogValueAxisY::calculateLayout() const -{ - QVector<qreal> points; - qreal logMax = log10(m_axis->max()) / log10(m_axis->base()); - qreal logMin = log10(m_axis->min()) / log10(m_axis->base()); - qreal leftEdge = logMin < logMax ? logMin : logMax; - qreal ceilEdge = ceil(leftEdge); - int tickCount = qAbs(ceil(logMax) - ceil(logMin)); - - points.resize(tickCount); - const QRectF &gridRect = gridGeometry(); - const qreal deltaY = gridRect.height() / qAbs(logMax - logMin); - for (int i = 0; i < tickCount; ++i) - points[i] = (ceilEdge + qreal(i)) * -deltaY - leftEdge * -deltaY + gridRect.bottom(); - - return points; -} - - -void ChartLogValueAxisY::updateGeometry() -{ - const QVector<qreal> &layout = ChartAxisElement::layout(); - if (layout.isEmpty()) - return; - setLabels(createLogValueLabels(m_axis->min(), m_axis->max(), m_axis->base(), layout.size(), m_axis->labelFormat())); - VerticalAxis::updateGeometry(); -} - -void ChartLogValueAxisY::handleBaseChanged(qreal base) -{ - Q_UNUSED(base); - QGraphicsLayoutItem::updateGeometry(); - if(presenter()) presenter()->layout()->invalidate(); -} - -void ChartLogValueAxisY::handleLabelFormatChanged(const QString &format) -{ - Q_UNUSED(format); - QGraphicsLayoutItem::updateGeometry(); - if(presenter()) presenter()->layout()->invalidate(); -} - -QSizeF ChartLogValueAxisY::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const -{ - Q_UNUSED(constraint) - - QSizeF sh; - - QSizeF base = VerticalAxis::sizeHint(which, constraint); - QStringList ticksList; - qreal logMax = log10(m_axis->max()) / log10(m_axis->base()); - qreal logMin = log10(m_axis->min()) / log10(m_axis->base()); - int tickCount = qAbs(ceil(logMax) - ceil(logMin)); - if (m_axis->max() > m_axis->min() && tickCount > 0) - ticksList = createLogValueLabels(m_axis->min(), m_axis->max(), m_axis->base(), tickCount, m_axis->labelFormat()); - else - ticksList.append(QString(" ")); - qreal width = 0; - // Height of vertical axis sizeHint indicates the maximum distance labels can extend past - // first and last ticks. Base height is irrelevant. - qreal height = 0; - - switch (which) { - case Qt::MinimumSize: { - QRectF boundingRect = ChartPresenter::textBoundingRect(axis()->labelsFont(), "...", axis()->labelsAngle()); - width = boundingRect.width() + labelPadding() + base.width() + 1.0; - height = boundingRect.height() / 2.0; - sh = QSizeF(width, height); - break; - } - case Qt::PreferredSize: { - qreal labelWidth = 0.0; - qreal firstHeight = -1.0; - foreach (const QString& s, ticksList) { - QRectF rect = ChartPresenter::textBoundingRect(axis()->labelsFont(), s, axis()->labelsAngle()); - labelWidth = qMax(rect.width(), labelWidth); - height = rect.height(); - if (firstHeight < 0.0) - firstHeight = height; - } - width = labelWidth + labelPadding() + base.width() + 2.0; //two pixels of tolerance - height = qMax(height, firstHeight) / 2.0; - sh = QSizeF(width, height); - break; - } - default: - break; - } - - return sh; -} - -#include "moc_chartlogvalueaxisy_p.cpp" - -QTCOMMERCIALCHART_END_NAMESPACE |