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Fix vanishing labels for first and last ticks....
Fix vanishing labels for first and last ticks. Extra space must be reserved by layout for the axes that have wide labels for first or last tick. Changed the logic how axis sizeHint is interpreted to make the previously irrelevant height or width (depending on orientation) of the sizeHint to indicate how far the widest label extends past the first/last tick, and adjust the grid size accordingly in layout. Reviewed-by: Mika Salmela
Jani Honkonen - - Load All Authors

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r2233:222c26d04db8
r2443:5b27b7b1d72a RC2_1.2.1
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examples-donutbreakdown.qdoc
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/*!
\example examples/donutbreakdown
\title Donut chart breakdown example
\subtitle
This example shows how to use create a donut breakdown chart using QPieSeries API.
\image examples_donutbreakdown.png
Let's start by defining some data for the chart.
\snippet ../examples/donutbreakdown/main.cpp 1
Then we create a chart where we add the data. Note that this is our own chart derived from QChart.
\snippet ../examples/donutbreakdown/main.cpp 2
Our own chart works so that in the constructor we create a main series
which aggregates the data provided by the breakdown series. This is the piechart in the center.
\snippet ../examples/donutbreakdown/donutbreakdownchart.cpp 1
When a breakdown series is added the data is used to create a slice in the main series and the
breakdown series itself is used to create a segment of a donut positioned so that it is aligned
with the corresponding slice in the main series.
\snippet ../examples/donutbreakdown/donutbreakdownchart.cpp 2
Here's how the start and end angles for the donut segments are calculated.
\snippet ../examples/donutbreakdown/donutbreakdownchart.cpp 3
Legend markers are customized to show the breakdown percentage and markers for the main level slices are hidden.
\snippet ../examples/donutbreakdown/donutbreakdownchart.cpp 4
Instead the main level slices show the percentage on the label.
\snippet ../examples/donutbreakdown/mainslice.cpp 1
\snippet ../examples/donutbreakdown/mainslice.cpp 2
And now that we have our chart defined we can finally create a QChartView and show the chart.
\snippet ../examples/donutbreakdown/main.cpp 3
*/