This is the first step towards implementing support for different
cloud providers.

The use of File objects is replaced with the interface IFile, which
has similar operations. A LocalFile implementation is provided to
deal with local contents in the same way it was being done before.

Some system-wide storage operations are abstracted in the interface
IDocumentProvider. A LocalDocumentsProvider implementation is
provided.

Known issues in this patch:

* Dummy filesystem code has been removed. This should be provided as
  an implementation of IDocumentProvider in case we need it, but that
  will probably not happen.

* Sorting is not implemented in LocalDocumentsProvider yet. It seemed
  not to be working anyway.

* Code to get directory thumbnails has been commented out. This code
  will probably belong to the IDocumentProvider/IFile implementations.
  We might want to have a different approach instead of reading
  hidden thumbnail files, something similar to what the native
  Start Center does.

Change-Id: Ib0882c69a0b24e28d2346bbe0154db01d1102b06

The call to createUI already performs all the actions done by
openDirectory, there is no need to call it again.

Change-Id: I7f900a23a4f85b627b7132dd6eb54b6e98e7edb6

Note that this was written to be used in combination with
commit 304e2002 to give back the
behavior of calling and dismissing the styles and formatting dialog.

Change-Id: Ic05db180425b0a2dcd05774b6fa0227b01464731
Reviewed-on: https://gerrit.libreoffice.org/13980Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

Remove code that caused an undocked sidebar to reenable a docked
sidebar when you attempt to close it using the window manager.  It
should simply be closed instead.

Change-Id: Ib058d167b6c89f42df3ce4c80e4d97435b31c31d
Reviewed-on: https://gerrit.libreoffice.org/13979Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

Change-Id: I6e68c13e4513c2f8cc38e237646db7dffc88fe3b
Reviewed-on: https://gerrit.libreoffice.org/13986Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

Two new icons. Linecolor and pilotrun, hope these are those in the toolbar in impress.

Change-Id: I8d1c9fca4d6135da908199b088b1ab6221251245
Reviewed-on: https://gerrit.libreoffice.org/13977Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

Additional icons for the sidebar.

Change-Id: I27f9abde47c69618c00cf1958dd597db841fe151
Reviewed-on: https://gerrit.libreoffice.org/13970Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>

This addresses some cppcheck warnings.

Change-Id: If7ad3584b3124ed0b337836071af1a5bd0451d85
Reviewed-on: https://gerrit.libreoffice.org/13972Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: I2368fc0a1c6dd73125d4770d06063ea3e3d8c713
Reviewed-on: https://gerrit.libreoffice.org/13961Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

Change-Id: Id636fa87ac7fd4a8c33d65bd72822768bc94b592
Reviewed-on: https://gerrit.libreoffice.org/13987Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

This addresses some cppcheck warnings.

Change-Id: Ib6b9651b828287665f7248052855f0da2779806e
Reviewed-on: https://gerrit.libreoffice.org/13968Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: I0de4e6278fb564c299722a9e23eb67d0999c4e31
Reviewed-on: https://gerrit.libreoffice.org/13966Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: Ia3910e7f1b33d16866b7e606fd648f152f9fe67a
Reviewed-on: https://gerrit.libreoffice.org/13971Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: Ibebfe89ad1874f5fa9e20fb76a534d9c2da01e3f
Reviewed-on: https://gerrit.libreoffice.org/13969Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: I1cd8b118e2598b8b18fb445851a3bb41e554267b
Reviewed-on: https://gerrit.libreoffice.org/13967Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: I7cbc1908d0e3c84f5864db34984d0740db891aef
Reviewed-on: https://gerrit.libreoffice.org/13962Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

This addresses some cppcheck warnings.

Change-Id: Iccdd4bebd46f274697597b13746c820aaadc99a4
Reviewed-on: https://gerrit.libreoffice.org/13960Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

Change-Id: Ia3195a21ad46b4c9830ee6293135dfe5945986a2
Reviewed-on: https://gerrit.libreoffice.org/13985Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

Change-Id: I4ffaf4195ae17ecf86dffc9c44e4672c4b2835d7

Change-Id: Ib127b6cf44a69709673465db99cc79417b18c266

Change-Id: If96b46bac7f8212cfb83dc8b4528986137f1eaea

Change-Id: I696fcbd2896aefda38314457b6838874262ad111

Change-Id: I7c125bd27f5662b2f5bbcafb51aebdac9e272d08

Change-Id: I54a87b8cf6ffc48f8e850379aebb4abba7a327b5

Change-Id: I8cc33007e99da38869daa48ff898593abc52c4ac

The DrawDeviceAlphaBitmapSlowPath used fast/ugly scaling with
blending. With this a bilinear scaling is used which should
improve quality for downscaling (less than 50% should start to
degrade in quality as only 2 samples are always used) and
upscaling.

Change-Id: I56cdf2b5761687be891387343a773b6fefac03e2

Additioanlly cleanup and use ScopedReadAccess

Change-Id: Ia3365f4dc968368bdd90d4398188bffe2d56e89b

Change-Id: I4c72576d36621d863de55b0ab9f0b5a22753446a

Change-Id: Ibd6a9824651b0e8376b06b1d74c409ba6950a66b

Change-Id: Ia6c178dd9390bf75a08c0d53e6505582a7f5ab4f

Change-Id: I52d7a7aaf304b7d698705cda7d3e70e723811fb2

from 234e45bf

Change-Id: Ic1bcab8a9662e2f302a24a6eaad2f813c12b28a8

Change-Id: Iba54fb717b4337ffe255d849a1c073f7baf7c921

Change-Id: I1aa12c89cbddd83febac733f68904cda6b91f0a9

This fixes a crash as we would need to make each context current before
calling ReleaseFramebuffers.

However this is totally unnecessary as only the current context can have
bound framebuffers.

Change-Id: I8b1496bb890982742b3d2ebf60fdce47db642d70

This thing was starting a timer that re-starts itself forever, and when
the file it was watching changed, it would just assume the drawing
objects were still there (and the document, for that matter...)

Change-Id: I35f187f0828097a05618dc1733dce819fc6bffc6

Change-Id: I0c82088342085c1b7d9aa3c6009684bc58a9fd21

We need to set scaling factors to device's map mode *only* for the texts.
Calc handles scaling for all the rest.  Interesting how it works.

Change-Id: Ia6aa122961ea5ddc2e31eacb28392f3e355a5ebf

With this, the tiles get rendered correctly at varying zoom levels.

Change-Id: Id5ca18e363dfdb143af1685be96af2f3c3514ea9

ScRangeList::DeleteArea() may remove an entire range, if it was the
last range a subsequent call to ScConditionalFormat::DeleteArea() would
attempt to access an invalid first element.

Change-Id: I8d68c27963dc8561d61a94980093c271bd3aaffb