PatternHandler: remove unused code

hrev17117 implemented B_OP_COPY with a special treatment for text.
hrev21929 introduced the color cache to speed up that text drawing.
hrev52753 removed the special treatment of text in B_OP_COPY, but left the
color cache and the text flag behind.

Change-Id: Ib506c80a660e829132bce3ec1cb354fcfbab266c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4931
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

app_server: Add casts to appease GCC 11 -Wclass-memaccess.

* get rid of RGBColor usage where it is not needed, this simplified many things,
possibly making them a little faster too
* mess with decorator button size calculation to make the whole layout scale
more agreeable with the font size (no more fixed offsets/insets), but it
is work in progress
* DefaultDecorator no longer allocated the border color array, it is part of
the object now
* small memory footprint optimizations in ViewLayer, Decorator and WindowLayer


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22003 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implemented a lock up table for drawing text in B_OP_COPY,
maybe this is too resource hungry, feel free to critisize... :-)
* the speedup is there, but not overwhelming


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21929 a95241bf-73f2-0310-859d-f6bbb57e9c96

* one can now specify and "offset" which will be taken into account when
looking up the color in the pattern, this is needed because before,
patterns were always drawn with the virtual origin in screen coordinate
space, but they need to be drawn with view coordinate origin taken into
account (will be implemented in a forthcomming commit)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21639 a95241bf-73f2-0310-859d-f6bbb57e9c96

started to move files arround for better source structure, app_server still builds and runs fine, in case you were worried...

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11988 a95241bf-73f2-0310-859d-f6bbb57e9c96

* get rid of RGBColor usage where it is not needed, this simplified many things,
possibly making them a little faster too
* mess with decorator button size calculation to make the whole layout scale
more agreeable with the font size (no more fixed offsets/insets), but it
is work in progress
* DefaultDecorator no longer allocated the border color array, it is part of
the object now
* small memory footprint optimizations in ViewLayer, Decorator and WindowLayer


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22003 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implemented a lock up table for drawing text in B_OP_COPY,
maybe this is too resource hungry, feel free to critisize... :-)
* the speedup is there, but not overwhelming


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21929 a95241bf-73f2-0310-859d-f6bbb57e9c96

* one can now specify and "offset" which will be taken into account when
looking up the color in the pattern, this is needed because before,
patterns were always drawn with the virtual origin in screen coordinate
space, but they need to be drawn with view coordinate origin taken into
account (will be implemented in a forthcomming commit)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21639 a95241bf-73f2-0310-859d-f6bbb57e9c96

started to move files arround for better source structure, app_server still builds and runs fine, in case you were worried...

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11988 a95241bf-73f2-0310-859d-f6bbb57e9c96