Mail: sizing/placing cleanup.

* Don't set a default fixed font size - just use the default fixed font.
* The preferences and signature window no longer have a default size,
and position, either. Instead, they are placed over the active window.
* Fixed spacing in the preferences window.
* Converted the signature window to use the layout API.
* Minor cleanup.

Less hardcoding of paths. Adding shared private OpenWithTracker().

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33207 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Rewrote BeBuild.h which had "a few" consequences (got rid of all those class
definitions).
* Minor cleanup here and there.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22577 a95241bf-73f2-0310-859d-f6bbb57e9c96

first part of a big cleanup of the Mail code
* separated window, app and context menu code
* got rid of all the global variables (which were accessed completely without
locking, and the code with regards to the preference window sill needs
fixing)
* extracted some defines and helper functions to MailSupport.cpp, though I later
saw Utilities.cpp...
* got rid of the FONT_SIZE define which was used in some (but not all) controls
to override the system font size
* worked in Header.cpp to get the controls layout font sensitive with correct
alignment too, some problems remain when resizing the window


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22122 a95241bf-73f2-0310-859d-f6bbb57e9c96

Less hardcoding of paths. Adding shared private OpenWithTracker().

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33207 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Rewrote BeBuild.h which had "a few" consequences (got rid of all those class
definitions).
* Minor cleanup here and there.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22577 a95241bf-73f2-0310-859d-f6bbb57e9c96

first part of a big cleanup of the Mail code
* separated window, app and context menu code
* got rid of all the global variables (which were accessed completely without
locking, and the code with regards to the preference window sill needs
fixing)
* extracted some defines and helper functions to MailSupport.cpp, though I later
saw Utilities.cpp...
* got rid of the FONT_SIZE define which was used in some (but not all) controls
to override the system font size
* worked in Header.cpp to get the controls layout font sensitive with correct
alignment too, some problems remain when resizing the window


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22122 a95241bf-73f2-0310-859d-f6bbb57e9c96