Set*UIColor, etc.

The inseparable changes necessary to support live color updating across the
system in a sane, safe, and performant manner.

BView gains:

HasSystemColors()
HasDefaultColors()
AdoptSystemColors()
AdoptParentColors()
AdoptViewColor(BView*)
SetViewUIColor(color_which, float tint)
SetHighUIColor(...
SetLowUIColor(...
ViewUIColor(float* tint)
HighUIColor(...
LowUIColor(...
DelayedInvalidate()

BWindow gains a simple helper method:
IsOffscreenWindow()

BMessage gains:

AddColor()
FindColor()
GetColor()
HasColor() * allegedly this API is deprecated, but I implemented it anyway
ReplaceColor()
SetColor()

Previous private ColorTools methods are made public and moved into GraphicsDefs:

mix_color, blend_color, disable_color

These are fully compatible with BeOS dan0 R5.1 methods and are just code cleanup
of BeOS example code under the OpenTracker license.

In addition, four new colors are created:
B_LINK_TEXT_COLOR
B_LINK_HOVER_COLOR
B_LINK_ACTIVE_COLOR
B_LINK_VISITED_COLOR

These changes are documented in their proper user documentation files.

In addition, due to a history rewrite, B_FOLLOW_LEFT_TOP has been defined and
used in lieu of B_FOLLOW_TOP | B_FOLLOW_LEFT and is included in this commit.

On the app_server side, the following has changed:

Add DelayedMessage - a system by which messages can be sent at a scheduled time,
and can also be merged according to set rules. A single thread is used to service the
message queue and multiple recipients can be set for each message.
Desktop gains the ability to add message ports to a DelayedMessage so that
said messages can target either all applications or all windows, as needed.

Desktop maintains a BMessage which is used to queue up all pending color changes
and the delayed messaging system is used to enact these changes after a short
period of time has passed. This prevents abuse and allows the system to merge
repeated set_ui_color events into one event for client applications, improving
performance drastically.

In addition, B_COLORS_UPDATED is sent to the BApplication, which forwards the message
to each BWindow. This is done to improve performance over having the app_server
independently informing each window.

Decorator changes are live now, which required some reworking.

Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>

Some style fixes

* Fix decorator reloading of windows in a stack. When reloading the decorator all tabs have to be added to the decorator, the focus and the top layer tab must be set. The decorator does not know about the window and the window stack, thus the window has to do it itself.
* Add Joseph Groover to the author list.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42768 a95241bf-73f2-0310-859d-f6bbb57e9c96

Move flags and look into the tab too. The flags are needed to determine e.g. whether or not the zoom button should be drawn.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42552 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup app server directory a bit by creating a font and a decorator sub folder.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42483 a95241bf-73f2-0310-859d-f6bbb57e9c96

Some style fixes

* Fix decorator reloading of windows in a stack. When reloading the decorator all tabs have to be added to the decorator, the focus and the top layer tab must be set. The decorator does not know about the window and the window stack, thus the window has to do it itself.
* Add Joseph Groover to the author list.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42768 a95241bf-73f2-0310-859d-f6bbb57e9c96

Move flags and look into the tab too. The flags are needed to determine e.g. whether or not the zoom button should be drawn.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42552 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup app server directory a bit by creating a font and a decorator sub folder.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42483 a95241bf-73f2-0310-859d-f6bbb57e9c96