[Pspp-commits] [SCM] GNU PSPP branch, master, updated. v0.8.4-98-g098d2ed

[John Darrington]

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- Log -----------------------------------------------------------------
commit 098d2edc63e7571769345903c9578b30a17a5f5c
Author: John Darrington <address@hidden>
Date:   Mon Jun 1 07:03:02 2015 +0200

    Added src/ui/gui/memorandum.txt to EXTRA_DIST

commit d5f9f3dea48e19a139827e9876385e0fa660cf38
Author: Friedrich Beckmann <address@hidden>
Date:   Mon Jun 1 00:20:01 2015 +0200

    histogram tick drawing - added format generation for optimum tick drawing
    
    Fixes bug #45192 which showed up in the gtk3 branch on MacOS.
    
    It replaces the decimal_xxx computations with a routine that computes a
    formatting string and a scale factor for a given axis range and number of
    bins. The formatting will switch between normal and scientific depending on
    the length of the displayed label text. The formatting is such that no
    rounded numbers like 3.9999999 when in fact 4 is expected is shown.
    Differences between bins remain visible in the tick labels.
    
    In addition the width of the rendered labels is compared with the width
    of the bins in the display such that the labels will automatically
    switch between horizontal and 45 degree display.

-----------------------------------------------------------------------

Summary of changes:
 src/math/chart-geometry.c                |   73 +++++++++++++++++++++++++++++
 src/math/chart-geometry.h                |    5 ++-
 src/output/cairo-chart.c                 |   24 ++++++++++
 src/output/cairo-chart.h                 |    6 ++-
 src/output/charts/plot-hist-cairo.c      |   49 +++++++++++--------
 src/ui/gui/automake.mk                   |    1 +
 tests/automake.mk                        |    9 +++-
 tests/math/chart-geometry.at             |   27 +++++++++++
 tests/math/chart-get-ticks-format-test.c |   75 ++++++++++++++++++++++++++++++
 9 files changed, 246 insertions(+), 23 deletions(-)
 create mode 100644 tests/math/chart-get-ticks-format-test.c


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