changes(3)

NAME
changes - Change log

Releases

Release 0.4.0

Bugfixes:

A few occurences of the boolean literal false were changed into macro FALSE for cross compiler compatibility.

A few local variables in member functions were renamed to suppress warnings issued by really picky compilers about global/class variables being hidden.

In qwt_legend.h, a fully qualified name was used in a class declaration. The HPUX compiler chokes on this (and it's ugly), so it was fixed.

Macro M_2PI is now only defined is this hasn't already been done by the system's clib.

Feature additions:

Qwt now works with Qt3.0. In order to achieve this, QwtLegend now no longer derives from QTableView, but from QTable. This seems to have had quite a few consequences. Kudo's to Uwe Rathmann for uploading this nice fix to the CVS tree.

Getters for a plot's title and title font have been added.

Release 0.3.0

License:

The license has changed from GPL to LGPL.

Bugfixes:

The makefiles for win32 caused object files to have extension .o instead of .obj. The 'propagate' file was changed to fix this, using tmake's target platform flag.

There were problems with rint() on win32 platforms. rint() is a BSD call, not even available on all unices. All calls to rint(x) have been replaced by floor(x+.5).

Some static class data members were initialized with the value of other static class data members (from Qt). This caused programs depend on the initialization order of class members. This is now fixed by replacing the static properties by static signleton factories.

When a plot was zoomed and then printed, curves and markers laying outside the plot's scale were still printed. The print() function now uses clipping.

Feature additions:

Multi-line plot titles are now supported: the PostScript document name is not the plot title, with '\n' characters replaced by '--'. Geometry management has been changed to support multi-line titles.

In the mailinglist, there were often feature requests for features that were in fact implemented, but not available through QwtPlot's API. Many private members have been made protected or even public, to give users more control. This is poor design, but Qwt will be refactored anyway.

Qwt always displayed floats with 5 digits. This was insufficient for many applications. QwtPlot, QwtScale, QwtAutoScale got some methods to set the label format. This is a printf like format for the numbers at the scales, consisting of 'f' and a precision, or 'g' and the significance.

Build system:

The 'makefiles' directory was removed from the cvs tree, and is now only generated for releases. CVS users should have tmake installed, to generate the makefiles themselves.

The 'examples' directory now uses tmake's 'subdirs' template, to iterate over all subdirectories and build all examples with one command. There was allready a makefile for this, but now the process is automated by tmake.

Under unix, the library now gets a proper version number. Current version is 0.3.0.

Documentation:

All documentation is converted to the Doxygen documentation system. The release contains two settings files, 'Doxygen' and 'Doxygen.users', generating a developer's and user's manual, respectively.