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Adjust various margins and paddings....
Adjust various margins and paddings. The text items have been changed to use QGraphicsTextItem bounding rects instead of calculating dimensions using QFontMetrics. It seems that QGraphicsTextItem boundingRect involves a lot more of a margin than QFontMetrics provided. To compensate, various margins and paddings have been adjusted lower. Change-Id: Idebf939f5dd804fb96daeaea4bbf1b45f4f02908 Reviewed-by: Mika Salmela <mika.salmela@digia.com>
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/*!
\example examples/lineandbar
\title Line and BarChart Example
\subtitle
The example shows how to combine different charts and set the axes. In the example we combine linechart with
barchart and use category axis as common axis for both.
\image examples_lineandbar.png
Here we create data for our barseries.
\snippet ../examples/lineandbar/main.cpp 1
We create the barseries and append the sets to it.
First values of each set are grouped together at first category second value to second category and so on.
\snippet ../examples/lineandbar/main.cpp 2
Then we create lineseries and add data to it. To make data match with barchart we use index as an x-value for our line series, so that
first point is at (0,value) second at (1,value) and so on.
\snippet ../examples/lineandbar/main.cpp 8
Here we create the chart and add both series to it.
\snippet ../examples/lineandbar/main.cpp 3
To make chart show series properly, we have to create custom axes for series. If we don't create custom axes, then each series will get scaled to
use maximum area of the chart (like in single series case) and result will be incorrect. With custom axes we set the range of both series to follow same
axis. For x-axis we use QBarCategoryAxis and for y-axis we use QValuesAxis.
\snippet ../examples/lineandbar/main.cpp 4
And we also want to show the legend.
\snippet ../examples/lineandbar/main.cpp 5
Finally we add the chart onto a view.
\snippet ../examples/lineandbar/main.cpp 6
And it is ready to be shown in a window.
\snippet ../examples/lineandbar/main.cpp 7
*/