diff options
Diffstat (limited to 'examples/datavisualization/qmllegend/doc/src/qmllegend.qdoc')
| -rw-r--r-- | examples/datavisualization/qmllegend/doc/src/qmllegend.qdoc | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/examples/datavisualization/qmllegend/doc/src/qmllegend.qdoc b/examples/datavisualization/qmllegend/doc/src/qmllegend.qdoc deleted file mode 100644 index a2b78161..00000000 --- a/examples/datavisualization/qmllegend/doc/src/qmllegend.qdoc +++ /dev/null @@ -1,54 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only - -/*! - \example qmllegend - \title Qt Quick 2 Legend Example - \ingroup qtdatavisualization_examples - \brief Showing graph legend in a QML application. - - The Qt Quick 2 legend example shows how to make an interactive legend for a graph. - - \image qmllegend-example.png - - The interesting thing about this example is displaying the legend. We'll concentrate on - that and skip explaining the basic functionality - for - more detailed QML example documentation, see \l{Qt Quick 2 Scatter Example}. - - \include examples-run.qdocinc - - \section1 Legend - - The legend is simply a column of custom \c LegendItem items inside a transparent rectangle. - Each item is supplied with a series and the graph theme: - - \snippet qmllegend/qml/qmllegend/main.qml 0 - - The legend items consist of a marker rectangle, which indicates the color of the series, - and a text field, which shows the name of the series. The colors we get from the series and - the theme supplied at legend item initialization: - - \snippet qmllegend/qml/qmllegend/LegendItem.qml 0 - \dots 4 - \snippet qmllegend/qml/qmllegend/LegendItem.qml 1 - - We want the legend to be interactive, so we add additional logic to enable selection of a - series by clicking on a legend item, as well as highlighting the legend item corresponding - to the selected series. - - The highlight depends on the selection state of the series, so we define two states, which - follow the Bar3DSeries::selectedBar property and adjust the \c legendItem color appropriately: - - \snippet qmllegend/qml/qmllegend/LegendItem.qml 3 - - To make the legend item interactive, we define a MouseArea to detect clicks on it and adjust - the series selection accordingly: - - \snippet qmllegend/qml/qmllegend/LegendItem.qml 2 - - The \c previousSelection used above is another custom property of \c LegendItem, which we update - whenever selection changes on the series. This way we remember the last selected bar of - each series: - - \snippet qmllegend/qml/qmllegend/LegendItem.qml 4 -*/ |