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Commit Graph

14 Commits

Author SHA1 Message Date
3ae7295142
Allow to disable cairo render groups (performance test) 2023-01-06 21:15:43 +01:00
70b00f5201
Canvas: allow to group rendering of child items
> This group functionality can be convenient for performing
> intermediate compositing. One common use of a group is to
> render objects as opaque within the group, (so that they
> occlude each other), and then blend the result with
> translucence onto the destination.
https://www.cairographics.org/manual/cairo-cairo-t.html#cairo-push-group

The main use case where will be to render opaque layered
[MIDI] regions transparently onto a grid.
2022-12-10 02:37:04 +01:00
f913373351 canvas: change Item::bb_clean() to better named Item::set_bbox_clean() 2022-04-26 22:04:08 -06:00
d54d63da3a canvas: remove code long disabled via an "if (0" 2022-04-26 22:04:08 -06:00
dc48f55285 canvas: bounding box changes for Container 2021-08-13 12:51:37 -06:00
fa2885d2d6 Canvas: do not fill containers by default (added during constraint packing work; badly affects the regular canvas) 2021-08-13 12:51:27 -06:00
0434f00a47 remove debug output 2021-08-13 12:51:26 -06:00
5650d4f5bb Canvas: container supports option to do fill & outline 2021-08-13 12:51:26 -06:00
cec5ce8f45
Update canvas/UI lib GPL boilerplate and (C) from git log 2019-08-03 15:53:17 +02:00
c4e31fc322 Add an optional ArdourCanvas::Item::prepare_for_render interface
Called when an item has requested a redraw and intersects with visible
canvas area.

Also add Canvas::prepare_for_render that will call Item::prepare_for_render for
items visible on the canvas.
2017-06-26 08:40:47 +10:00
4fa4b9a135 remove use of boost::optional to define "undefined" Canvas::Rect, and use Rect::empty instead.
This commit includes Rect::operator bool() which might be a candidate for removal in a future commit, in an attempt
to make the meaning clearer
2017-01-19 20:54:54 +01:00
4dc63966f0 globally remove all trailing whitespace from ardour code base.
Paul Davis was responsible for introducing almost all of this.
2015-10-04 14:51:05 -04:00
6a5d805b38 more canvas refactoring.
Remove Canvas::Layout, use Canvas::Container for the same purpose, move child-rendering into Item::render_children() so that it
could theoretically be used by any derived type.
2014-06-22 11:41:05 -04:00
f0933bf005 add missing new files for canvas redesign 2014-06-22 09:53:14 -04:00