SVG-like rendering for the canvas
Tkpath implements path drawing modelled after SVG. It is very flexible and reproduces all standard drawing canvas items. Features include: opacity, antialiasing, gradient fills, affine transformations, and fill rules. Backends include: CoreGraphics on MacOSX, GDI on Win32, GDI+ on WinXP, Cairo on X11, and Tk drawing as a fallback. Not all backends support all features.
Tkpath 0.3.0 provides a new canvas widget that is supposed to be 100% compatible with tk::canvas. My major motivation for creating this package was to make something that maps well with SVG graphics.
Tkpath adds mainly two things:
The new items are:
Most of them can be configured using styles. Instead of setting similar options for each of them, it is possible to create a style, and then use this style for each similar item. When a style is configured, each item using it will be redisplayed.
Using the group item you create a "directory" in the item hierarchy which acts similar to a frame in the widget hierarchy except that options set to the group may be inherited by child items.
The only documentation currently is README.txt , which is very sparse.
Perhaps the easists way to describe it is to look at these screen shots . Look at the tkpath links.
Note that previous tkpath releases used the tk::canvas item type plugin model for the new item types. This is no longer possible.
Download: just do a cvs checkout and build yourself, or just use the pre-built binaries found in the cvs tree. The only non-standard dependency is on cairo-graphics which is getting common in later linux distros.
If anyone want to help then focus on documentation, test code, and bug patches.
Enjoy, Mats ([email protected])
2012-06-05 yyamasak: I tried 0.3.1 using an analog clock sample (tkpath - clock). I had to redraw clock hands explicitly by calling "event generate .uhr <Configure>". It seems "coord" canvas subcommand does not perform redrawing.