Fixed various errors/warnings reported by cppcheck:
* memory leaks
* resource leaks
* added const's to getters
* removed a few reundant conditions


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35433 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Artur Wyszynski with some changes by myself:
* Resolved TODO: The type of the gradient is no longer encoded twice in the
app_server link protocoll.
* Moved instantiation of the BGradient into the LinkReceiver::ReadGradient()
method.
* Check success for (at least) ReadGradient() in ServerWindow.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28150 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Artur Wyszynski:
* Implemented BGradient, BGradientLinear, BGradientRadial,
BGradientDiamond, BGradientConic and BGradientRadialFocus
new Interface Kit classes.
* Implemented all the (AGG-based) backend necessary in
the app_server to render gradients (Painter, DrawingEngine)
* app_server/View can convert a BGradient layout to screen
coordinates.
* Added BGradient methods of the Fill* methods in BView.
* Implemented a test app and added it to the image as a
demo.
* Adopted Icon-O-Matic and libs/icon in order to avoid
clashing with the new BGradient class. Re-use some
parts where possible.

Awesome work, Artur! Thanks a lot. Now a more modern
looking GUI has just become much easier to implement! :-)

TODO:
* Remove the need to have gradient type twice in the
app_server protocol.
* Refactor some parts of the patch to remove duplicated
code (Painter, DrawingEngine).
* Adopt the BPicture protocol to know about BGradients.
* Review some parts of the BArchivable implementation.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28109 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BView::FillRegion() sends the BRegion data instead of decomposing
it and rebuilding it on the server side (that causes a huge speed
up for regions containing many rects)
* There is a method in ServerLink that could have been used, but I
actually needed to add the direct BRegion support to LinkReceiver
* added LinkReceiver as a friend to BRegion class
* ServerApp and ServerWindow keep the CursorManager locked after they
have retrieved a cursor until they have called Acquire() on the
cursor. (Axel: what good is using atomic* stuff in Acquire() and
Release() if we have to protect this by a lock anyways?)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16957 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added LinkReceiver methods that return the length of the string.
* AS_GET_STRING_WIDTHS now uses this method to send the strings to the app_server;
ie. it no longer sends the whole strings, and it saves sending the string length
separately.
* BFont::StringWidth() will now always return 0.0f in case of an error (instead of
some random value)
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16525 a95241bf-73f2-0310-859d-f6bbb57e9c96

You can now test if there are more messages waiting in the link.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15512 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added BString version of LinkReceiver::ReadString().
* adopted this method for ServerLink as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14750 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unused files like PortMessage.cpp/h and Session.cpp/h.
Renamed LinkMsgReceiver.h and LinkMsgSender.h to LinkReceiver.h and LinkSender.h like
the classes they contain.
Split up PortLink.cpp/h into ServerLink.cpp/h and PortLink.cpp/h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14635 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fixed various errors/warnings reported by cppcheck:
* memory leaks
* resource leaks
* added const's to getters
* removed a few reundant conditions


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35433 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Artur Wyszynski with some changes by myself:
* Resolved TODO: The type of the gradient is no longer encoded twice in the
app_server link protocoll.
* Moved instantiation of the BGradient into the LinkReceiver::ReadGradient()
method.
* Check success for (at least) ReadGradient() in ServerWindow.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28150 a95241bf-73f2-0310-859d-f6bbb57e9c96

Patch by Artur Wyszynski:
* Implemented BGradient, BGradientLinear, BGradientRadial,
BGradientDiamond, BGradientConic and BGradientRadialFocus
new Interface Kit classes.
* Implemented all the (AGG-based) backend necessary in
the app_server to render gradients (Painter, DrawingEngine)
* app_server/View can convert a BGradient layout to screen
coordinates.
* Added BGradient methods of the Fill* methods in BView.
* Implemented a test app and added it to the image as a
demo.
* Adopted Icon-O-Matic and libs/icon in order to avoid
clashing with the new BGradient class. Re-use some
parts where possible.

Awesome work, Artur! Thanks a lot. Now a more modern
looking GUI has just become much easier to implement! :-)

TODO:
* Remove the need to have gradient type twice in the
app_server protocol.
* Refactor some parts of the patch to remove duplicated
code (Painter, DrawingEngine).
* Adopt the BPicture protocol to know about BGradients.
* Review some parts of the BArchivable implementation.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28109 a95241bf-73f2-0310-859d-f6bbb57e9c96

* BView::FillRegion() sends the BRegion data instead of decomposing
it and rebuilding it on the server side (that causes a huge speed
up for regions containing many rects)
* There is a method in ServerLink that could have been used, but I
actually needed to add the direct BRegion support to LinkReceiver
* added LinkReceiver as a friend to BRegion class
* ServerApp and ServerWindow keep the CursorManager locked after they
have retrieved a cursor until they have called Acquire() on the
cursor. (Axel: what good is using atomic* stuff in Acquire() and
Release() if we have to protect this by a lock anyways?)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16957 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added LinkReceiver methods that return the length of the string.
* AS_GET_STRING_WIDTHS now uses this method to send the strings to the app_server;
ie. it no longer sends the whole strings, and it saves sending the string length
separately.
* BFont::StringWidth() will now always return 0.0f in case of an error (instead of
some random value)
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16525 a95241bf-73f2-0310-859d-f6bbb57e9c96

You can now test if there are more messages waiting in the link.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15512 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added BString version of LinkReceiver::ReadString().
* adopted this method for ServerLink as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14750 a95241bf-73f2-0310-859d-f6bbb57e9c96

Removed unused files like PortMessage.cpp/h and Session.cpp/h.
Renamed LinkMsgReceiver.h and LinkMsgSender.h to LinkReceiver.h and LinkSender.h like
the classes they contain.
Split up PortLink.cpp/h into ServerLink.cpp/h and PortLink.cpp/h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14635 a95241bf-73f2-0310-859d-f6bbb57e9c96