{"id":2511,"date":"2014-10-07T13:56:45","date_gmt":"2014-10-07T13:56:45","guid":{"rendered":"https:\/\/arahne.org\/new\/\/?p=2511"},"modified":"2018-08-09T12:31:34","modified_gmt":"2018-08-09T12:31:34","slug":"do-programs-ever-grow-up","status":"publish","type":"post","link":"https:\/\/arahne.org\/zh\/do-programs-ever-grow-up\/","title":{"rendered":"Do programs ever grow up?"},"content":{"rendered":"
Like children, sometimes they do, and parents are proud, if they go out in the world and do big things.
\nAt the end of September 2014, we have dropped the “beta” label from the new ArahPaint5.<\/div>\n
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Like children, sometimes they do, and parents are proud, if they go out in the world and do big things.
\nAt the end of September 2014, we have dropped the “beta” label from the new ArahPaint5.\"Murner.Nerrenbeschwerung.kind.small\"<\/a>
\nThis means that we think it is good enough for production use.
\nArahPaint5 was more than three years in the making; it was supposed to be small evolution from ArahPaint4.
\nTechnically speaking, we have just ported it from Qt3 to Qt4 toolkit (programming library which helps us make buttons, menus, draw points on screen).
\nIn doing so, we eliminated the dependency on X Window graphics toolkit, so that program could be ported to other platforms than Linux\/Unix.
\nSound wonderful. But we have almost\u00a0thrown away the baby with the bathwater<\/a>.<\/p>\n

The careful speed optimizations, which worked only on Linux, had to be eliminated and replaced with generic toolkit code. The once snappy program became dog slow. What is the big change from the previous beta versions?
\nArahPaint5 can now handle big images well. Before ArahPaint 5.0.445, the bigger the image, the slower the drawing. It worked nicely on 1000×1000, slower on 3000×3000, while at 100000×10000 resolution, the drawing speed was reduced to useless crawl.
\nYou could literally see the mouse pointer not being able to follow your movements.
\nThis problem was especially painful, as ArahPaint4 did not have this issue. So existing users, used to fast work, did not want to use ArahPaint5 at all.
\nWhich was a pity, as ArahPaint5 comes with many nice new features:<\/p>\n