update QtBearer NetworkManager backend API

Task-number: QTBUG-41747

Change-Id: Idb4afea0215b94957a11895c7db97a72ae680804
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Add better mobile connections to QtBearer NetworkManager backend.

Task-number: QTBUG-41807

Change-Id: Ifb5904d4887111416b4bb1a32d6d056029186f5c
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Set correct transient parent in q_createNativeChildrenAndSetParent().

Fix warning:
void QWindow::setTransientParent(QWindow*) ... must be a top level window.
which occurred for example when parenting a QMenu onto a native child
widget.

Task-number: QTBUG-41898
Change-Id: Icc25fb2108bd68b2d9c0e551949b90fc7a82d358
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
OS X - maximize app's window from the Dock or using cmd-tab

On OS X it's possible to maximize app's window by clicking on an app's
icon in the Dock.
Another trick is to use cmd-tab to select an app +,
while still holding the 'cmd' key, press the 'option' key -
this should also maximize a window.
None of these works at the moment, and to enable these features app
delegate should return YES from the

-applicationShouldHandleRepopen:hasVisibleWindows:.

method.

Task-number: QTBUG-40084
Change-Id: I33ba9e74d55d41d23deb429612519b746d461d9e
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
OS X - unified toolbar and AA_NativeWindows

In some cases QToolBar creates a child window (a child borderless NSWindow)
placed on top of the toolbar's  main window. As a result it's not possible
to drag this main window using its toolbar - the window "jumps" on the screen.
The reason is quite subtle - QNSView -handleMouseEvent: uses
[NSEvent mouseLocation] and this location is invalid:

- we have an NSWindow (parent)
- we have a child NSWindow ([parent addChildWindow:child ....]
- we handle drag event in a child window
- we move a parent window as a result of drag event
- Cocoa also moves a child window for us
- when handling the  next drag event, location [NSEvent mouseLocation]
  differs from the real event's location.

Task-number: QTBUG-40106
Change-Id: Ic68cb92ab4233a1e0746b478820c1e33fd37a462
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
OS X: Retina displays and blurry QToolButton

Checkable QToolButton has a special pixmap in the background,
painted with a 'smooth pixmaps' hint. This hint also affects
how an icon on a toolbutton itself is painted later. The difference
can be quite visible on a Retina display, so this patch makes the toolbutton's
image always look the same in checked/unchecked state.

Task-number: QTBUG-35162
Change-Id: I2adc8006371fa10d89d4b77da6b3aa168aa5abc8
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Produce more correct clip path for QGraphicsShapeItem

If no pen is set on the item, we can completely ignore the
pen for the creation of the items shape. This both speeds
up the creation of the shape and applying it as a clip mask
as well as creating more correct results.

Task-number: QTBUG-32846
Change-Id: I5f6f690256c71309713d8f746e67599af3088dd7
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Correctly apply miter limits when stroking lines

The PDF generator was in many cases not correctly
applying miter limits to the generated strokes leading
to drawing artifacts for very sharp edges.

Task-number: QTBUG-37903
Change-Id: Ie93b0f4a56775729105a375ba3bcdb5b58993433
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
QPA: Flush window system events with flags.

Add a QEventLoop::ProcessEventsFlags argument to
flushWindowSystemEvents(). This gives the platform
plugins more control over which events to flush.

Task-number: QTBUG-39842
Change-Id: Id9c01948b22e297b22503d38ec4e726f9f880fd5
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Jonathan Liu <net147@gmail.com>
eglfs: Do not flush input events when updating the cursor

Task-number: QTBUG-42079
Change-Id: Ica806a090db74b4a1c34421334a28d7efd002b35
Reviewed-by: Jonathan Liu <net147@gmail.com>
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Fix height of combo popup when the list view has non-zero spacing.

QListView::spacing() is the space around the item (layout margin),
so the effective spacing is twice as big.
This differs conceptionally from QTableView, which has a spacing of 1
and a line on top/bottom. Split up QComboBoxPrivateContainer::spacing()
into functions return spacing and top/bottom margins to reflect this.

Task-number: QTBUG-37865
Change-Id: I1ff812e7856e00a53f1119ef3304956cbb7cbfca
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Windows: Implement Qt::WA_ShowWithoutActivating.

Set dynamic property for all platforms and query it
in QWindowsWindow::show_sys().

Task-number: QTBUG-19194
Task-number: QTBUG-34504
Change-Id: I4199a2ed835d3de928405d470a81c54da93cc768
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Fix helper function call in QWindowsVistaStyle::pixelMetric().

Task-number: QTBUG-41944
Task-number: QTBUG-40277
Change-Id: I1da9ffddce8edfcaa87d27058ed73ac7ec63d081
Reviewed-by: Adam Light <aclight@gmail.com>
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>
OS X: drag and drop and auto-scrolling

Cocoa sens periodic drag updated events even if there is no
actuall mouse movement (or any other updates).
This breaks animations in different
views/widgets supporting our own auto-scroll (done with timers).
This patch kindly asks Cocoa _not_ to send us these events.

Task-number: QTBUG-32761
Change-Id: I5dad4ceb0a490e2f3cb34a806a5bdb1045b4dac3
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Respect minimum size of heightForWidth layouts

Since we cannot support heightForWidth constraints on toplevel
windows, it is impossible to solve this perfectly: if the
window is resizable at all, the user will be able to resize it
too small. Our old solution was just to give up and allow
completely free resizing, even down to 0x0. This makes
very little sense. It is clearly better to use the minimum
size that we have already computed, even though it is not
perfect.

This reverts a behavior change introduced in commit
36e9516f85fbb9c9a236f5ca034d5a0126d86c12 (September 9th, 2002)

[ChangeLog][QtWidgets][QLayout] Widgets and dialogs containing
layouts with heightForWidth (such as a label with word wrap)
will no longer get a minimum size of 0x0.

Task-number: QTBUG-37673
Change-Id: If26b7ef9c80edbf9d54c6519b36646df408b7652
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
Respect contents margins when calculating the size hint

Without this part of the calendar widget get cut off when put
in a layout and the contentsMargins are non zero.

Task-number: QTBUG-40352
Change-Id: I9ce90476c59c270d92e876a5dc81ea8ce325848c
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
Fix badly laid out docs for AA_UseHighDpiPixmaps

Leaving an empty line causes the last sentence go outside the table,
causing a break before the subsequent enum values.

Change-Id: I7477010a259497f8063997d2122a954d1799c1ee
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
Document QOpenGLPixelTransferOptions

Task-number: QTBUG-35576
Change-Id: I178f5db5f1075b6a395cf8ff73b75fe1765540aa
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Avoid adding empty parent icon theme

"Icon Theme/Inherits" may assign an empty value, e.g. Flattr icon
theme

Change-Id: I90713b3eb67e39d6a49a49d1f5b3d7a75a8f30f4
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Windows native socket: handle WSAENETRESET the same as WSAECONNRESET

Task-number: QTBUG-41934
Change-Id: Ib92d8a83965e11e2706ef0daba945cb00692d2c5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Richard J. Moore <rich@kde.org>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>