diff options
author | Titta Heikkala <titta.heikkala@digia.com> | 2014-07-01 07:10:00 +0300 |
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committer | Titta Heikkala <titta.heikkala@theqtcompany.com> | 2014-10-14 13:04:52 +0300 |
commit | c544258484ff4fd5d2b88402fbaa5d154b89a3a2 (patch) | |
tree | 7659625abb566dec55d3783ed820b928542d9b2b /src/charts/axis/valueaxis/chartvalueaxisx.cpp | |
parent | 76339f714f088645e911cee65bdb66055fe029aa (diff) |
Qt Charts project file structure change
Charts repository structure is changed to follow the structure of a
Qt Add-On module. The task includes following changes:
- All macros and definitions named 'commercial' have been renamed.
- Compile errors related to QString and qSort usage have been fixed.
- Old demos are moved under examples. The QML examples now support only
Qt Quick 2.0, the support for Qt Quick 1 is removed.
- The QML examples with multiple views are updated so that they are
usable also with touch devices.
- Unnecessary version checks are removed from examples.
- The build stamp has been removed as it was only meant for Charts
development purposes and it's no longer needed. Also development
build related debug prints are removed as __DATE__ can't be used
for all OS thus it doesn't make much sense.
- Documentation structure has been updated based on the new module
structure. The raw HTML files have been removed. Demos are
combined to examples.
- Unnecessary .qdocinc files are no longer needed. The content is
moved to the corresponding .cpp files.
- The Charts widget designer plugin is updated according to the module
change.
- The test cases updated according to the project structure change.
Tests are added also for version 2.0.
- cmake modules generation is not needed with Qt 5.4 and Qt Charts
so it's disabled.
- The new module name and version are updated to the plugin.qmltypes
file.
Task-number: QTRD-2844, QTRD-3217, QTRD-3218, QTRD-3277, QTRD-3228,
QTRD-2526, QTRD-3233, QTRD-3222
Change-Id: Ib7fb26057cde710ffaf6bc780c8bf52a16f45160
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Diffstat (limited to 'src/charts/axis/valueaxis/chartvalueaxisx.cpp')
-rw-r--r-- | src/charts/axis/valueaxis/chartvalueaxisx.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/charts/axis/valueaxis/chartvalueaxisx.cpp b/src/charts/axis/valueaxis/chartvalueaxisx.cpp new file mode 100644 index 00000000..abf9c434 --- /dev/null +++ b/src/charts/axis/valueaxis/chartvalueaxisx.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** 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 "chartvalueaxisx_p.h" +#include "qabstractaxis.h" +#include "chartpresenter_p.h" +#include "qvalueaxis.h" +#include "abstractchartlayout_p.h" +#include <QGraphicsLayout> +#include <qmath.h> +#include <QDebug> + + +QT_CHARTS_BEGIN_NAMESPACE + +ChartValueAxisX::ChartValueAxisX(QValueAxis *axis, QGraphicsItem *item ) + : HorizontalAxis(axis, item), + m_axis(axis) +{ + QObject::connect(m_axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int))); + QObject::connect(m_axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString))); +} + +ChartValueAxisX::~ChartValueAxisX() +{ +} + +QVector<qreal> ChartValueAxisX::calculateLayout() const +{ + int tickCount = m_axis->tickCount(); + + Q_ASSERT(tickCount >= 2); + + QVector<qreal> points; + points.resize(tickCount); + + const QRectF &gridRect = gridGeometry(); + const qreal deltaX = gridRect.width() / (qreal(tickCount) - 1.0); + for (int i = 0; i < tickCount; ++i) + points[i] = qreal(i) * deltaX + gridRect.left(); + return points; +} + +void ChartValueAxisX::updateGeometry() +{ + const QVector<qreal>& layout = ChartAxisElement::layout(); + if (layout.isEmpty()) + return; + setLabels(createValueLabels(min(), max(), layout.size(), m_axis->labelFormat())); + HorizontalAxis::updateGeometry(); +} + +void ChartValueAxisX::handleTickCountChanged(int tick) +{ + Q_UNUSED(tick); + QGraphicsLayoutItem::updateGeometry(); + if(presenter()) presenter()->layout()->invalidate(); +} + +void ChartValueAxisX::handleLabelFormatChanged(const QString &format) +{ + Q_UNUSED(format); + QGraphicsLayoutItem::updateGeometry(); + if(presenter()) presenter()->layout()->invalidate(); +} + +QSizeF ChartValueAxisX::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const +{ + Q_UNUSED(constraint) + + QSizeF sh; + + QSizeF base = HorizontalAxis::sizeHint(which, constraint); + QStringList ticksList = createValueLabels(min(),max(),m_axis->tickCount(),m_axis->labelFormat()); + // Width of horizontal axis sizeHint indicates the maximum distance labels can extend past + // first and last ticks. Base width is irrelevant. + qreal width = 0; + qreal height = 0; + + switch (which) { + case Qt::MinimumSize: { + QRectF boundingRect = ChartPresenter::textBoundingRect(axis()->labelsFont(), + QStringLiteral("..."), + axis()->labelsAngle()); + width = boundingRect.width() / 2.0; + height = boundingRect.height() + labelPadding() + base.height() + 1.0; + sh = QSizeF(width, height); + break; + } + case Qt::PreferredSize: { + qreal labelHeight = 0.0; + qreal firstWidth = -1.0; + foreach (const QString& s, ticksList) { + QRectF rect = ChartPresenter::textBoundingRect(axis()->labelsFont(), s, axis()->labelsAngle()); + labelHeight = qMax(rect.height(), labelHeight); + width = rect.width(); + if (firstWidth < 0.0) + firstWidth = width; + } + height = labelHeight + labelPadding() + base.height() + 1.0; + width = qMax(width, firstWidth) / 2.0; + sh = QSizeF(width, height); + break; + } + default: + break; + } + return sh; +} + +#include "moc_chartvalueaxisx_p.cpp" + +QT_CHARTS_END_NAMESPACE |