| Summary: | Whether to use the "subsurfaces"? | ||
|---|---|---|---|
| Product: | Wayland | Reporter: | belnd |
| Component: | wayland | Assignee: | Wayland bug list <wayland-bugs> |
| Status: | RESOLVED INVALID | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
This does not look like a bug report, so closing as INVALID. Bugzilla is for bug reports, it is not a general discussion forum. If you have questions, the Wayland upstream forum for that is the wayland-devel mailing list, or the IRC channel on Freenode. Use those, please. |
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So, consider a button with text. In the shm file are: * three button states: normal, pressed and hovered pointer, * the rendered text. A total of 4 bitmaps. How best to organize the rendering of the button? 1. To use the "subsurfaces" for the text and for the button, changing its 3 state when needed. 2. To draw directly in "shellsurface". The text and the button state is stored in memory, but each time the update button will be copied into a separate memory area "wl_buffer" for "shellsurface". At the end of the article concludes that the surface is better not to use when building widgets. http://ppaalanen.blogspot.ru/2013/11/sub-surfaces-now.html It turns out that you need to use method #2, but then each time you hover the cursor, the client will copy the button state and text. You can make a crutch: cutting text bitmap from the bitmaps of the button states, then when you hover the cursor would to copy _only_ the button state. But still not effective.. Stop, handling the pointer-hover is possible because only in the presence of the surface.. of a button.