diff options
author | Titta Heikkala <titta.heikkala@qt.io> | 2017-09-05 13:29:11 +0300 |
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committer | Titta Heikkala <titta.heikkala@qt.io> | 2017-09-06 10:55:33 +0000 |
commit | 71245a106ddb7c07a9cb305bb1e3904860d8af0b (patch) | |
tree | 434084cfaff48dc5bf96516c7750960daa384ff9 /examples/charts/chartthemes | |
parent | efc0d85236bd2408649ef4467f0ec702c95263c9 (diff) |
Improve the documentation of Chart Themes Example
Added more detailed documentation and code snippets to Chart Themes
Example.
Change-Id: I206b65038b369d0eaa5fb128b872328ec43de7a2
Task-number: QTBUG-60662
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Topi Reiniƶ <topi.reinio@qt.io>
Diffstat (limited to 'examples/charts/chartthemes')
-rw-r--r-- | examples/charts/chartthemes/themewidget.cpp | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/examples/charts/chartthemes/themewidget.cpp b/examples/charts/chartthemes/themewidget.cpp index 47a6ea63..ed49ce9b 100644 --- a/examples/charts/chartthemes/themewidget.cpp +++ b/examples/charts/chartthemes/themewidget.cpp @@ -82,8 +82,10 @@ ThemeWidget::ThemeWidget(QWidget *parent) : m_ui->gridLayout->addWidget(chartView, 1, 1); m_charts << chartView; + //![5] chartView = new QChartView(createLineChart()); m_ui->gridLayout->addWidget(chartView, 1, 2); + //![5] m_charts << chartView; chartView = new QChartView(createBarChart(m_valueCount)); @@ -229,9 +231,12 @@ QChart *ThemeWidget::createBarChart(int valueCount) const QChart *ThemeWidget::createLineChart() const { + //![1] QChart *chart = new QChart(); chart->setTitle("Line chart"); + //![1] + //![2] QString name("Series "); int nameIndex = 0; for (const DataList &list : m_dataTable) { @@ -242,12 +247,17 @@ QChart *ThemeWidget::createLineChart() const nameIndex++; chart->addSeries(series); } + //![2] + //![3] chart->createDefaultAxes(); chart->axisX()->setRange(0, m_valueMax); chart->axisY()->setRange(0, m_valueCount); + //![3] + //![4] // Add space to label to add space between labels and axis static_cast<QValueAxis *>(chart->axisY())->setLabelFormat("%.1f "); + //![4] return chart; } @@ -324,19 +334,25 @@ QChart *ThemeWidget::createScatterChart() const void ThemeWidget::updateUI() { + //![6] QChart::ChartTheme theme = static_cast<QChart::ChartTheme>( m_ui->themeComboBox->itemData(m_ui->themeComboBox->currentIndex()).toInt()); - + //![6] const auto charts = m_charts; if (!m_charts.isEmpty() && m_charts.at(0)->chart()->theme() != theme) { - for (QChartView *chartView : charts) + for (QChartView *chartView : charts) { + //![7] chartView->chart()->setTheme(theme); + //![7] + } // Set palette colors based on selected theme + //![8] QPalette pal = window()->palette(); if (theme == QChart::ChartThemeLight) { pal.setColor(QPalette::Window, QRgb(0xf0f0f0)); pal.setColor(QPalette::WindowText, QRgb(0x404044)); + //![8] } else if (theme == QChart::ChartThemeDark) { pal.setColor(QPalette::Window, QRgb(0x121218)); pal.setColor(QPalette::WindowText, QRgb(0xd6d6d6)); @@ -363,19 +379,24 @@ void ThemeWidget::updateUI() } // Update antialiasing + //![11] bool checked = m_ui->antialiasCheckBox->isChecked(); for (QChartView *chart : charts) chart->setRenderHint(QPainter::Antialiasing, checked); + //![11] // Update animation options + //![9] QChart::AnimationOptions options( m_ui->animatedComboBox->itemData(m_ui->animatedComboBox->currentIndex()).toInt()); if (!m_charts.isEmpty() && m_charts.at(0)->chart()->animationOptions() != options) { for (QChartView *chartView : charts) chartView->chart()->setAnimationOptions(options); } + //![9] // Update legend alignment + //![10] Qt::Alignment alignment( m_ui->legendComboBox->itemData(m_ui->legendComboBox->currentIndex()).toInt()); @@ -388,5 +409,6 @@ void ThemeWidget::updateUI() chartView->chart()->legend()->show(); } } + //![10] } |