Commit Graph

267 Commits

Author SHA1 Message Date
Qt Forward Merge Bot
faab18c65a Merge remote-tracking branch 'origin/5.14' into 5.15
Change-Id: Ifd83db69416230175ddc3161f640b612755018fc
2019-10-16 01:00:49 +02:00
Sona Kurazyan
9cc040a806 Prepare for deprecating the QDesktopWidget
QDesktopWidget is marked as obsolete in docs, but it is not yet
completely deprecated, some of its methods are still in use.

Replace uses of the following methods marked as obsolete:
- QDesktopWidget::screenNumber(QWidget*) -> QWidget::screen()
- QDesktopWidget::screenGeometry(QWidget*) -> QWidget::screen()->geometry()
- QDesktopWidget::availableGeometry(QWidget*) -> QWidget::screen()->availableGeometry()

Task-number: QTBUG-76491
Change-Id: I2cca30f2b4caa6e6848e8190e09f959d2c272f33
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-10-15 20:09:29 +02:00
Alexandru Croitor
440286655e Merge remote-tracking branch 'origin/dev' into wip/cmake
Change-Id: I4a78428a8ea273b6960792e3b8043f816fa37fcf
2019-10-14 17:46:34 +02:00
Frederik Gladhorn
d8c3375dbd cmake: add examples/opengl
Fixes: QTBUG-78164
Change-Id: Iccc8bb1354d2362c950de17a6c00e00f95272967
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-10-07 07:22:17 +00:00
Christian Ehrlicher
b0042601ed Cleanup QtOpenGL examples
Cleanup the OpenGL examples
 - use nullptr (clang-tidy)
 - use member-initialization
 - avoid redundant checks for != nullptr when deleting a pointer

Change-Id: I3e4702690ed79e71c3e952d51ceef83b907b45b7
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2019-09-30 22:16:27 +02:00
Marc Mutz
082f10c9eb QOpenGLWindow example: use std::unique_ptr instead of QScopedPointer
QScopedPointer is scheduled for deprecation, and can't decide whether
it wants to be a scoped, or a unique pointer.

The use of a unique_ptr members requires that the destructor be
out-of-line, since the payload classes are only forward-declared in
the header file.

Change-Id: Id0dcdde52cb3adc30d3051d2eed1d24c76154921
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2019-07-25 14:17:51 +00:00
Sona Kurazyan
2f33e030b8 Remove usages of deprecated APIs of qtbase/gui
- Replaced the usages of deprecated APIs by corresponding
  alternatives in the library code and documentation.

- Modified the tests to make them build when deprecated APIs disabled:
    * Made the the parts of the tests testing the deprecated APIs to
      be compiled conditionally, only when the corresponding methods are
      enabled.
    * If the test-case tests only the deprecated API, but not the
      corresponding replacement, added tests for the replacement.

Change-Id: Ic38245015377fc0c8127eb5458c184ffd4b450f1
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2019-07-13 10:43:15 +02:00
Edward Welbourne
84e89c1e9e Convert uses of QTime as a timer to QElapsedTimer
Change-Id: I2297f61efa5adf9ea5194c7f3ff68574cbcf452c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2019-06-14 10:42:33 +02:00
Qt Forward Merge Bot
f8212b87d9 Merge remote-tracking branch 'origin/5.12' into 5.13
Change-Id: I0c00ffe0eabebc919f22d6faa4bf958b288e8fd9
2019-05-12 01:00:08 +02:00
Laszlo Agocs
45aa3c73f7 hellogles3: Request core profile context
...instead of compatibility, in order to play nice with systems
that have no compatibility profile support (macOS). Instancing
needs OpenGL 3.x so sticking with 2.x contexts is not an option.

The example looks fully compatible with core profile so its
functionality should not change.

Change-Id: If0d554a6208973aa8a4fb86757e246d170cd0e71
Fixes: QTBUG-75680
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-05-11 12:01:53 +00:00
Christian Ehrlicher
df39627fa3 Examples: cleanup foreach usage
Replace deprecated foreach macro with range-based for loop

Change-Id: If919ba1d1d4acddfc1c5460ce7aebf8c49e3ac38
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2019-02-02 12:49:19 +00:00
Tor Arne Vestbø
a20c52dffc Use requestUpdate instead of timer in a few GL examples
Change-Id: I235ad367fe693c86ef5a0844fde0573371b284db
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2019-01-22 21:25:39 +00:00
Marc Mutz
4715d6db80 ThreadedOpenGL example: use std::unique_ptr instead of QScopedPointer
There's talk that QScopedPointer may be deprecated. Don't use it
in examples anymore.

Change-Id: I05a486c2a86fcc7015a9c21ed0ce9682b0c24034
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
2019-05-15 11:03:52 +02:00
Qt Forward Merge Bot
07e9261105 Merge remote-tracking branch 'origin/5.11' into 5.12
Change-Id: Iaa438d14357be1bf75bb645cb8d3245947c055b8
2018-09-30 01:00:19 +02:00
Liang Qi
555a6b5d5d Modernize the "filesystemwatcher" feature
Change-Id: If030b56ad97e047d89d442629262b4839df306d4
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2018-09-27 08:18:55 +00:00
Liang Qi
e3ed2281c0 Merge remote-tracking branch 'origin/5.11' into dev
Conflicts:
	src/plugins/platforms/cocoa/qnsview.mm
	src/plugins/platforms/cocoa/qnsview_dragging.mm
	src/plugins/platforms/ios/qiosinputcontext.mm
	src/plugins/platforms/xcb/qxcbconnection.cpp
	src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
	src/plugins/platforms/xcb/qxcbwindow.cpp
	src/tools/androiddeployqt/main.cpp
		Was moved from qttools into qtbase in 5.11.
		So re-apply 32398e4d here.
	tests/auto/corelib/global/qlogging/test/test.pro
	tests/auto/corelib/global/qlogging/tst_qlogging.cpp
	tests/auto/corelib/io/qfile/tst_qfile.cpp
	tests/auto/corelib/kernel/qtimer/tst_qtimer.cpp
	tests/auto/corelib/thread/qthreadstorage/test/test.pro
	tests/auto/widgets/itemviews/qheaderview/tst_qheaderview.cpp
	tests/auto/widgets/kernel/qapplication/test/test.pro

Done-with: Gatis Paeglis <gatis.paeglis@qt.io>
Done-with: Mårten Nordheim <marten.nordheim@qt.io>
Done-with: Oliver Wolff <oliver.wolff@qt.io>
Change-Id: Id970486c5315a1718c540f00deb2633533e8fc7b
2018-07-02 11:23:45 +02:00
Paul Wicking
4d326555ab Doc: Add Hello GLES3 example
Task-number: QTBUG-67109
Change-Id: I55135264a63b78502b300de723a25b3f363af58b
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-06-26 07:58:39 +00:00
Tor Arne Vestbø
384e72bdb3 Spice up QOpenGLWindow example
By drawing the same gradient for the triangle as in the rasterwindow example.
We also set a default geometry and show the window without forcing it to become
maximized.

Change-Id: I05f9138d08f9c5d3e30eec362a3a1cd63d72753e
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-06-15 09:35:03 +00:00
Michal Klocek
16b0c48aca Fix typo in contextinfo example
Change-Id: I4d788c9880ca4d52aab58a5abc13b8b91838b66e
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-06-15 07:30:38 +00:00
Liang Qi
305dd1b61f Merge remote-tracking branch 'origin/5.9' into 5.11
Conflicts:
	.qmake.conf
	src/corelib/animation/qvariantanimation.cpp
	src/corelib/global/qglobal.cpp
	src/corelib/global/qlogging.cpp
	src/corelib/io/qprocess_win.cpp
	src/corelib/json/qjsonarray.cpp
	src/corelib/tools/qsimd_p.h
	src/corelib/tools/qtimezoneprivate_p.h
	src/corelib/xml/qxmlstream_p.h
	src/gui/kernel/qsimpledrag.cpp
	src/gui/kernel/qsimpledrag_p.h
	src/plugins/generic/generic.pro
	src/plugins/platforms/cocoa/qcocoamenu.mm
	src/widgets/styles/qmacstyle_mac.mm
	tests/auto/concurrent/qtconcurrentmap/BLACKLIST
	tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
	tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp
	tests/auto/gui/kernel/qwindow/BLACKLIST
	tests/auto/widgets/dialogs/qmessagebox/BLACKLIST

Change-Id: I508d686cf20f7f8cc6a7119b9bc7c3bbb505c58e
2018-02-14 12:51:24 +01:00
Friedemann Kleint
b0310ddd16 hellogles3 example: Fix start-up crash when using dynamic GL
Move the instantiation of QGuiApplication to the top since it is
required by QOpenGLContext::openGLModuleType().

Task-number: QTBUG-55671
Change-Id: I506cee193fe2ba48400851588a8ef079848bc2f4
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-01-26 09:47:45 +00:00
Liang Qi
65a97fccc6 Merge remote-tracking branch 'origin/5.10' into dev
Conflicts:
	tests/auto/widgets/itemviews/qtreeview/tst_qtreeview.cpp

Change-Id: If089d5010d15c33b3c1f13912d4386207456c1a9
2018-01-20 22:36:19 +01:00
Rainer Keller
f13b0b2cf2 qtlite: Skip building examples when configured with no-feature-itemviews
Compiling the default examples should be possible without compile errors.

Task-number: QTBUG-53141
Change-Id: I73d8787241291ae6230861a89b38e91d900fede0
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
2018-01-12 07:58:20 +00:00
Liang Qi
153e8b49ad Merge remote-tracking branch 'origin/5.10' into dev
Conflicts:
	src/network/access/qhttp2protocolhandler_p.h
	src/network/kernel/kernel.pri
	src/network/ssl/qsslkey_qt.cpp
	src/plugins/platforms/cocoa/qcocoascreen.mm
	src/plugins/platforms/windows/accessible/iaccessible2.cpp
	src/plugins/platforms/windows/accessible/iaccessible2.h
	src/plugins/platforms/windows/accessible/qwindowsaccessibility.cpp
	src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.cpp
	src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.h
	src/widgets/widgets/qmenu_p.h
	tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
	tests/auto/other/qaccessibility/tst_qaccessibility.cpp
	tests/auto/testlib/selftests/expected_cmptest.lightxml
	tests/auto/testlib/selftests/expected_cmptest.teamcity
	tests/auto/testlib/selftests/expected_cmptest.txt
	tests/auto/testlib/selftests/expected_cmptest.xml

Done-with: Edward Welbourne <edward.welbourne@qt.io>
Change-Id: I4217cc7d840cbae3e3dd28574741544469c4c6b9
2017-11-23 09:36:03 +01:00
Thiago Macieira
19b0ce5daa Change almost all other uses of qrand() to QRandomGenerator
The vast majority is actually switched to QRandomGenerator::bounded(),
which gives a mostly uniform distribution over the [0, bound)
range. There are very few floating point cases left, as many of those
that did use floating point did not need to, after all. (I did leave
some that were too ugly for me to understand)

This commit also found a couple of calls to rand() instead of qrand().

This commit does not include changes to SSL code that continues to use
qrand() (job for someone else):
  src/network/ssl/qsslkey_qt.cpp
  src/network/ssl/qsslsocket_mac.cpp
  tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp

Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5285d43f4afbf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2017-11-08 09:14:03 +00:00
Liang Qi
aadfe7d634 Merge remote-tracking branch 'origin/5.10' into dev
Conflicts:
	src/gui/kernel/qguiapplication.cpp
	src/platformsupport/input/libinput/qlibinputpointer.cpp
	src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.h
	src/plugins/platforms/cocoa/qcocoawindow.h
	src/testlib/qtestsystem.h

Change-Id: I5975ffb3261c2dd82fe02ec4e57df7c0950226c5
2017-09-26 16:14:54 +02:00
Kevin Funk
58c14c4a7e Replace Q_NULLPTR with nullptr where possible
Remaining uses of Q_NULLPTR are in:
src/corelib/global/qcompilerdetection.h
  (definition and documentation of Q_NULLPTR)
tests/manual/qcursor/qcursorhighdpi/main.cpp
  (a test executable compilable both under Qt4 and Qt5)

Change-Id: If6b074d91486e9b784138f4514f5c6d072acda9a
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2017-09-19 11:53:55 +00:00
Kevin Funk
47c92fbb0b Replace Q_DECL_OVERRIDE with override where possible
Remaining uses of Q_DECL_OVERRIDE are in:

src/corelib/global/qcompilerdetection.h
src/corelib/global/qglobal.cpp
doc/global/qt-cpp-defines.qdocconf
  (definition and documentation of Q_DECL_OVERRIDE)
tests/manual/qcursor/qcursorhighdpi/main.cpp
  (a test executable compilable both under Qt4 and Qt5)

Change-Id: Ib9b05d829add69e98a86238274b6a1fcb19b49ba
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2017-09-19 11:53:42 +00:00
Marc Mutz
b4a88aa758 examples: port away from Java-style iterators
There's no reason to use them here, the Mutable is misleading in a
few instances, ranged-for is much simpler, and more future-proof.

Change-Id: Ifd5eaae95bbaa0b4cf0f435e6cfee6d778817b44
Reviewed-by: David Faure <david.faure@kdab.com>
2019-05-23 17:30:51 +02:00
Liang Qi
c0359bd3c3 Merge remote-tracking branch 'origin/5.13' into dev
Conflicts:
	src/corelib/global/qfloat16.cpp
	src/corelib/global/qfloat16.h
	src/plugins/platforms/windows/qwindowswindow.cpp

Change-Id: I0938aaa6a9771f55e48c95ed29f6f5291431b947
2019-05-15 07:11:41 +02:00
Lars Knoll
92f9842732 Deprecate conversion functions between QList and QSet
Users should use range constructors instead to do the conversion.
Keep conversion methods between QList and QVector as these will turn
into a no-op in Qt 6, whereas forcing people to use range constructors
would lead to deep copies of the data.

Change-Id: Id9fc9e4d007044e019826da523e8418857c91283
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-05-07 14:15:44 +00:00
Liang Qi
19dd2ca93b Merge remote-tracking branch 'origin/5.9' into 5.10
Conflicts:
	examples/opengl/qopenglwidget/main.cpp
	src/3rdparty/pcre2/src/pcre2_printint.c
	src/plugins/platforms/cocoa/qnsview.mm
	src/widgets/widgets/qcombobox.cpp

Change-Id: I37ced9da1e8056f95851568bcc52cd5dc34f56af
2017-09-06 13:26:31 +02:00
Friedemann Kleint
e29b72384b Hello GL2 example: Fix exit crash
Bail out of cleanup() when run 2nd time.

Task-number: QTBUG-60626
Change-Id: I8a9be2fcfb0e8a5584ce8ed7952affff24bd2a33
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2017-09-05 10:55:11 +00:00
Friedemann Kleint
b3717fc7f0 OpenGL examples: Introduce QCommandLineParser
Task-number: QTBUG-60626
Change-Id: I6d102327c89206fcdce10f3ac04e112270b11ad2
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2017-09-05 10:54:15 +00:00
Simon Hausmann
407302fb1b Merge remote-tracking branch 'origin/5.9' into dev
Conflicts:
	src/corelib/io/qwindowspipewriter.cpp
	src/widgets/styles/qcommonstyle.cpp

Change-Id: I0d33efdc4dc256e234abc490a18ccda72cd1d9e6
2017-07-19 09:47:29 +02:00
Friedemann Kleint
dc81a99dec Examples: Remove remains of wince
Task-number: QTBUG-52590
Task-number: QTBUG-60628
Task-number: QTBUG-60633
Task-number: QTBUG-60635
Task-number: QTBUG-60641
Task-number: QTBUG-60659
Change-Id: I9ffc3e25893d2281b19cc12b70e1a92fb2a8b708
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2017-07-14 17:30:51 +00:00
Edward Welbourne
29af390e3f Clean up some arithmetic code in an example
The square root of a sum of squares is easier to read and should be
computed more accurately if done for us by hypot().  Variables set
only once should be set as an initializer and declared const, to make
clear this is what's happening.  Loop variables can be local to loops.
Adding a value to, or subtracting one from, a multiple of itself just
multiplies it be one plus (or minus) the multiplier; assigning the
result to the same variable is clearer as a *= (especially when the
factors are now overt numeric constants).  An array of 16k floats all
updated in locksteck to the same value can be replaced by a single
float that holds that value.  Simple things should not be needlessly
made more complicated - especially in example code, which should be
pedagogic.

Change-Id: Idab585cd7df1399c250d4b9f1396a085ae8f3864
Reviewed-by: hjk <hjk@qt.io>
2017-07-14 13:36:46 +00:00
Morten Johan Sørvig
24961cb18c Don’t flicker on startup: render on expose
All QWindow implementations must produce a frame before
returning from the expose event.

Change-Id: I5640809c47e948101879c1623c12230fa0a63c44
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2017-06-27 23:51:15 +00:00
Edward Welbourne
02b7ec05d5 Be (somewhat more) consistent about the value of pi
Use M_PI (and friends), where possible, in favor of hand-coded
approximations of various (in)accuracies.  Where that's not available
(e.g. fragment shaders), use the same value that qmath.h uses for
M_PI, for consistency.  Replaced math.h with qmath.h in places that
defined a fall-back in case math.h omits it (it's not in the C++
standard, although M_PI is in POSIX); or removed this entirely where
it wasn't used.

Reworked some code to reduce the amount of arithmetic needed, in the
process; e.g. pulling common factors out of loops.  Revised an
example's doc to not waste time talking about using a six-sig-fig
value for pi (which we no longer do) - it really wasn't relevant, or
anything to be proud of; nor did the doc mention its later use.

Task-number: QTBUG-58083
Change-Id: I5a31e3a2b6a823b97a43209bed61a37b9aa6c05f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2017-06-20 09:53:46 +00:00
Liang Qi
0c034a649f Merge remote-tracking branch 'origin/5.9' into dev
Conflicts:
	src/widgets/widgets/qpushbutton.cpp

Change-Id: I615de00e6e64540c50f658d4d8ab3e002d701a81
2017-03-14 10:52:24 +01:00
Paolo Angelelli
40ace7a2a0 Fix computegles31 example
This patch fixes the example that contained problems showing up
with mesa/nouveau drivers.

Change-Id: Ic90f6028e394138781f00bcc00c145c56134f441
Reviewed-by: Gunnar Sletta <gunnar@crimson.no>
2017-03-08 09:19:39 +00:00
Kai Koehne
4460b9c843 Replace outdated BSD license text
For examples and documentation, use new BSD license text that
includes the commercial licenses.

Change-Id: I1cd74bd8e9c8f2746d8702df00780ee100cbebac
Reviewed-by: Jani Heikkinen <jani.heikkinen@qt.io>
2017-03-03 07:26:11 +00:00
Laszlo Agocs
5bb4d06494 Add support for custom texture format in QOpenGLWidget
...in order to support sRGB framebuffers.

Add a --srgb option to the qopenglwidget example to allow testing.

[ChangeLog][QtWidgets][QOpenGLWidget] Added support for specifying
custom internal texture formats in QOpenGLWidget in order to make it
possible to have the widget backed by an sRGB-capable framebuffer.

Task-number: QTBUG-50987
Change-Id: I112e2f0ab0b1478c69e601031aa0bafaa87fa847
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2017-02-26 20:06:07 +00:00
Liang Qi
c577f6edaf Merge remote-tracking branch 'origin/5.8' into 5.9
Conflicts:
	src/corelib/plugin/qlibrary_unix.cpp
	src/plugins/platforms/xcb/qxcbconnection.cpp
	tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp

Change-Id: I632c400d909f8c204f55743aadc7886af2f15dfb
2017-02-16 21:51:11 +01:00
Samuel Gaist
6864374f05 Example: migrate grabber to use QRegularExpression
Update the legacy grabber example to use the new QRegularExpression
class in place of the deprecated QRegExp.

Change-Id: I1d1871b7e82cdb214fdd8ad55a606d5e7682fab1
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
2017-02-15 14:45:51 +00:00
Liang Qi
318b58562a Merge remote-tracking branch 'origin/5.8' into dev
Conflicts:
	.qmake.conf
	mkspecs/common/msvc-desktop.conf
	mkspecs/common/msvc-version.conf
	mkspecs/common/winrt_winphone/qmake.conf
	mkspecs/features/mac/default_post.prf
	mkspecs/features/mac/sdk.prf
	mkspecs/features/qt.prf
	mkspecs/features/uikit/default_post.prf
	mkspecs/features/winrt/default_pre.prf
	mkspecs/winphone-arm-msvc2013/qmake.conf
	mkspecs/winphone-x86-msvc2013/qmake.conf
	mkspecs/winrt-arm-msvc2013/qmake.conf
	mkspecs/winrt-x64-msvc2013/qmake.conf
	mkspecs/winrt-x86-msvc2013/qmake.conf
	qmake/generators/win32/msvc_vcproj.cpp
	src/gui/kernel/qwindowsysteminterface.cpp
	src/network/kernel/qhostaddress.cpp
	src/plugins/platforms/mirclient/qmirclientplugin.cpp
	src/plugins/platforms/mirclient/qmirclientplugin.h
	src/widgets/util/qsystemtrayicon.cpp
	tests/auto/widgets/itemviews/qlistview/tst_qlistview.cpp
	tools/configure/Makefile.mingw
	tools/configure/Makefile.win32

Done-with: Jake Petroules <jake.petroules@qt.io>
Done-with: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Change-Id: I4be3262d3994e11929d3b1ded2c3379783797dbe
2017-01-25 20:06:06 +01:00
Alexander Volkov
fb7bfbf18d examples: Use QOverload to select overloaded signals and slots
We can use QOverload since Qt 5.7 (it depends on Q_COMPILER_VARIADIC_TEMPLATES
which is required since Qt 5.7).
Use it in the examples to show the best practice.
qOverload currently can't be used because it requires c++14.

Change-Id: I94a3c0db9d551fe169fa3d19c07ec0b329d5946c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-12-22 14:54:55 +00:00
Liang Qi
e5ac4afbf9 Merge remote-tracking branch 'origin/5.8' into dev
Conflicts:
	mkspecs/features/mac/default_post.prf
	mkspecs/features/uikit/default_post.prf

Change-Id: I2a6f783451f2ac9eb4c1a050f605435d2dacf218
2016-11-17 14:43:26 +01:00
Lars Knoll
03c1a6ac71 Remove last traces of opengl es 1 support
Change-Id: I3f86d4892ec3235003d34fdcf3f093f1513c821f
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2016-11-16 22:00:46 +00:00
Anton Kudryavtsev
770f090a6c computegles31 example: fix warning -Winconsistent-missing-override
Change-Id: I48847b329c10277820f67dc11fc86f2a84d6b303
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2016-10-03 08:06:33 +00:00
Paolo Angelelli
a6b8b03f86 OpenGL: add support for compute shaders in GLES 3.1
OpenGL ES 3.1 introduces compute shaders. This patch enables them also
in QOpenGLShader/QOpenGLShaderProgram.
A GL/GLES example using QOpenGLShaderProgram for compute shaders is also
included.

Change-Id: I3951a302d7c2b096548f829b9b4578b5a525c453
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2016-09-21 16:45:50 +00:00
Lars Knoll
60985aa42b Use qtConfig throughout in qtbase
Use the new qtConfig macro in all pro/pri files.

This required adding some feature entries, and adding
{private,public}Feature to every referenced already existing entry.

Change-Id: I164214dad1154df6ad84e86d99ed14994ef97cf4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2016-08-19 04:28:05 +00:00
Edward Welbourne
782ebeada1 Merge remote-tracking branch 'origin/5.7' into dev
Conflicts:
	qmake/library/qmakebuiltins.cpp
	qmake/library/qmakeevaluator.cpp
	qmake/library/qmakeevaluator.h
	qmake/project.h
QMakeEvaluator:
* evaluateConditional(): one side changed return type, the other
  changed a parameter type.
* split_value_list(): one side changed a parameter adjacent to where ...
* expandVariableReferences(): ... the other killed one overload and
  changed the survivor

	src/corelib/io/qlockfile_unix.cpp
One side changed a #if condition, the other moved NETBSD's part of
what it controlled.

	src/corelib/tools/qdatetime.cpp
One side fixed a reachable Q_UNREACHABLE in toMSecsSinceEpoch(), the
other moved it from the private class to the public one, in the midst
of the "short date-time" optimization, which confused diff entirely.
One side changed a QStringLiteral to QLatin1String, the other rewrote
adjoining code.

	src/network/kernel/qauthenticator.cpp
Both rewrote a line, equivalently; kept the dev version.

	src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm
	src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h
One side changed #if-ery that the other removed.

	tools/configure/configureapp.cpp
One side added a check to -target parsing; the other killed -target.

	tests/auto/testlib/selftests/expected_cmptest.lightxml
	tests/auto/testlib/selftests/expected_cmptest.teamcity
	tests/auto/testlib/selftests/expected_cmptest.txt
	tests/auto/testlib/selftests/expected_cmptest.xml
	tests/auto/testlib/selftests/expected_cmptest.xunitxml
Regenerated using generate_expected_output.py
I note that quite a few other expected_* come out changed, now.

There was no git-conflict in
	src/widgets/kernel/qformlayout.cpp
but it didn't compile; one side removed some unused methods; the other
found uses for one of them.  Put FixedColumnMatrix<>::removeRow(int)
back for its new user.

Change-Id: I8cc2a71add48c0a848e13cfc47b5a7754e8ca584
2016-07-19 20:14:40 +02:00
Thiago Macieira
840729a931 QDateTime: use the more efficient currentMSecsSinceEpoch()
... instead of creating a QDateTime object.

Change-Id: Ib57b52598e2f452985e9fffd145a36911de4fa9a
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-07-02 07:51:11 +00:00
hjk
40a54bf565 Examples: Replace 'Q_DECL_OVERRIDE' by 'override'
Examples should demonstrate best practice, and we can use the keyword
directly nowadays.

Change-Id: I1f122e5caceca17290757ffbaf3d660e7daa9ae4
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-06-15 09:32:30 +00:00
Liang Qi
57057f76ad Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	.qmake.conf
	config.tests/unix/nis/nis.cpp
	mkspecs/unsupported/freebsd-g++/qplatformdefs.h
	src/corelib/tools/qdatetime.cpp
	src/corelib/tools/qsimd.cpp
	src/corelib/tools/qsimd_p.h
	src/network/access/access.pri
	src/network/access/qnetworkreplynsurlconnectionimpl.mm
	src/network/access/qnetworkreplynsurlconnectionimpl_p.h
	src/plugins/platforms/cocoa/qnsview.mm
	src/plugins/printsupport/windows/qwindowsprintdevice.cpp
	tests/auto/corelib/kernel/qobject/tst_qobject.cpp
	tests/auto/network/access/qnetworkreply/BLACKLIST
	tests/auto/widgets/widgets/qopenglwidget/BLACKLIST

Change-Id: I4b32055bbf922392ef0264fd403405416fffee57
2016-06-06 09:04:55 +02:00
Friedemann Kleint
965b5b7ae0 OpenGL legacy example: Fix compilation in namespaced builds.
Change-Id: I6b2f3e8c240e105c73008fa61f9ed50cc9d982ac
Reviewed-by: Alexandru Croitor <alexandru.croitor@theqtcompany.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-05-27 20:28:30 +00:00
Liang Qi
dbef41f43e Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	examples/qtestlib/tutorial5/containers.cpp
	examples/widgets/tools/tools.pro
	src/corelib/io/qprocess.cpp
	src/corelib/io/qprocess_unix.cpp
	src/corelib/io/qprocess_win.cpp
	src/network/kernel/qdnslookup_unix.cpp
	src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
	src/testlib/qtestcase.cpp
	tools/configure/configureapp.cpp

Change-Id: I838ae7f082535a67a4a53aa13a21ba5580758be8
2016-05-06 15:36:44 +02:00
Oswald Buddenhagen
780d21e129 fix example installs
Change-Id: Ib34795f10b1d7120b28958127ced049af3b4f72b
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
2016-05-03 10:25:33 +00:00
Oswald Buddenhagen
2c7b3726bf install the opengl legacy examples
while they are not built, their sources should be installed as long we
don't delete them completely.

Change-Id: I5e628e96cc9715520cb6e5aadb2cae61d1d03a4f
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2016-05-03 10:25:25 +00:00
Liang Qi
23a36fd2bf Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	src/corelib/io/qprocess_win.cpp
	src/widgets/itemviews/qheaderview.cpp

Change-Id: I0a59ade9cd6e91f770fdf298a7d72a41e79fd761
2016-04-27 09:18:05 +02:00
Friedemann Kleint
759b3f49c5 OpenGL/contextinfo-Example: Add command line options and status label.
Add command line options to be able to set the QCoreApplication attributes
that influence Open GL context creation and add a status label at the
bottom that displays it besides the QT_OPENGL environment variable.

Task-number: QTBUG-52693
Change-Id: Id9793292596e0feb3da5220fde2e5b2e495f87ff
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2016-04-23 06:10:45 +00:00
Jani Heikkinen
cd46a2daf5 Unify license header usage.
Update files using old header.LGPL3 to header.LGPL
Update files using old FDL template to use new one
Update files using old BSD template to use new one

Change-Id: I36a78272516f9953d02956522f285b40adfc8915
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-03-29 10:20:03 +00:00
Nico Vertriest
3b0c75316c Doc: Replaced Trolltech logo with Qt logo
Task-number: QTBUG-37505
Change-Id: If59039b2f7e60ffea3e8c7803d38e528acf35383
Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>
2016-02-03 12:37:37 +00:00
Friedemann Kleint
f9bf737d74 Examples/Doc snippets: Fix single-character string literals.
Use character literals where applicable.

Change-Id: I79fa5018f05735201ae35ee94ba0d356fcad1056
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2015-10-13 16:37:07 +00:00
Laszlo Agocs
b46ffbca0c Fix up QOpenGLWidget transparency support
The glColorMask call was troublesome. In addition, the Qt::WA_TranslucentBackground
was misinterpreted and recommended misleadingly in the documentation. The hellogl2
example's --transparent argument was disfunctional in practice.

Replace glColorMask with glBlendFuncSeparate. The hellogl2 example and the docs are
now corrected wrt enabling semi-transparency in a QOpenGLWidget that is not a top-level
(which is the most common case).

Task-number: QTBUG-47276
Change-Id: I6f40e732d455f5efcf158649ac9a52ff9f240e85
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
2015-09-24 12:51:37 +00:00
Friedemann Kleint
c726bc85da Port examples/opengl to new connection syntax.
Change-Id: I486a4a2326bf57ec5ea08bccdcef79c3e5553db5
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-09-02 10:21:56 +00:00
Sean Harmer
c48cc28c36 Compile in namespaced builds
Change-Id: I2894fbadec50286c0831bf381d149b54ade9182d
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-08-31 10:33:57 +00:00
Paul Olav Tvete
80dbdf0de3 Make the gles3 example more impressive
Add some extra rotations and offsets, to show off the power of
what you can do with a single draw call. Also use QGLWindow instead
of QGLWidget. This improves performance from 23 FPS to 30 FPS on a
4k monitor with integrated Intel graphics.

Change-Id: Iedac1c14cc6057959aa15faaacdf29da91f36ab1
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-07-24 10:18:16 +00:00
Laszlo Agocs
4535c7911d Expose GLES 3.0 and 3.1 functions
Using the approach we already do for some GLES 3.0 functions we can provide a cross-platform,
cross-GL-GLES wrapper for ES 3.0 and 3.1 functions too.

Applications only have to take extra care about the version requests (context version
and version directives in shader code), the rest of their code can stay the same across
desktop/mobile/embedded, even when ES 3 functions are used.

The new functions are placed to a new subclass which is placed between QOpenGLFunctions
and the internal QOpenGLExtensions. This is necessary because, unlike with QOpenGLFunctions,
there is no guarantee that these functions are always available in all configurations.

When running on desktop OpenGL, we resolve as usual. If the OpenGL version contains the
function in question, either in core or as an extension, it will all just work. This is
handy because it does not rely on 4.x extensions like GL_ARB_ESx_compatibility, and so
ES 3.0 functions will be functional on OpenGL 3.x systems too by just setting a 3.x version
number in the QSurfaceFormat.

We will no longer qFatal on broken systems where the driver returns a 3.0 or 3.1 context without
the corresponding functions present. Instead, we show a warning and gracefully fall back to
resolving as usual, via eglGetProcAddress or similar. For functions that are available in ES2 as
an extension this may just work fine.

Added also an example that runs identically both with OpenGL and OpenGL ES 3 and utilizes some
ES 3.0 features like instanced drawing.

[ChangeLog] Added QOpenGLExtraFunctions providing OpenGL ES 3.0 and 3.1 function wrappers in
a cross-platform manner.

Task-number: QTBUG-46161
Change-Id: I9f929eb61946c35c415b178c4d6ab2c1c958684e
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
2015-07-23 07:59:07 +00:00
Liang Qi
0aa2d318b1 Merge remote-tracking branch 'origin/5.5' into dev
Conflicts:
	src/corelib/global/qglobal.cpp
	src/corelib/global/qglobal.h
	src/corelib/global/qsysinfo.h
	src/corelib/global/qsystemdetection.h
	src/corelib/kernel/qobjectdefs.h
	src/plugins/plugins.pro
	tests/auto/widgets/itemviews/qlistview/qlistview.pro

Change-Id: Ib55aa79d707c4c1453fb9d697f6cf92211ed665c
2015-07-01 11:05:26 +02:00
Benjamin Summerton
2a526b12ce Updated Hello GL2 Example to new Signal/Slot syntax
The Hello GL2 Example was using the older Signal/Slot syntax that made
use of the macros `SIGNAL()` and `SLOT()`.  I changed it to the newer
one.

Change-Id: I8e55015383847a04b07f751fe9fc94b81956a896
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-06-29 11:30:01 +00:00
Oswald Buddenhagen
d32f47b703 fix usage of wince scope
Fix style issues along the way.

Change-Id: Ic6a6de28e198eb0b14c198b802e78845703909b9
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
2015-06-05 10:29:10 +00:00
Laszlo Agocs
78e3354083 Clip QOpenGLWidget and QQuickWidget correctly
Introduce support for the widgets' clipRect(). Right now render-to-texture widgets
in scroll areas placed close to each other result in broken (non-existent) clipping.
Similarly, stack-on-top widgets fail to clip when placed inside a scroll area.

This is now corrected and the qopenglwidget example is enhanced to utilize a scroll
area.

Task-number: QTBUG-45860
Change-Id: I859a63d61a50d64ba9e87244f83c5969dce12337
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
2015-06-01 13:38:14 +00:00
Friedemann Kleint
cab7e7858a Make OpenGL legacy examples hellogl and overpainting work with Dynamic GL.
Call GL functions using QOpenGLFunctions_1_1.

Task-number: QTBUG-46103
Change-Id: I1cbacf9c192c17d96d96aa861bb16e2918a0c053
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-05-23 08:59:14 +00:00
Friedemann Kleint
9d85490ea2 Fix exclusion for legacy Open GL examples.
Add dynamic GL and remove warning about ANGLE since that
package no longer exists.

Task-number: QTBUG-46103
Change-Id: Icf93d1105434395a3c9ad61bb8c921fcedfc7137
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-05-15 13:39:56 +00:00
Morten Johan Sørvig
a4cba90e19 Set correct target.path for legacy GL examples
Fix Library not loaded/image not found error on application
startup.

With @rpath enabled (commit 6e18f57a) qmake now requires
a correct target.path in order to emit correct -rpath @loader_path
linker directives.

Change-Id: Ia32b038ad2d64819477be5cd9d1ed36768e2251b
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
2015-05-14 07:57:11 +00:00
Laszlo Agocs
20870dad20 Add OpenGL 4.5 to contextinfo example
Change-Id: I6f6c5b55769fd818aaf94580246952a574124c0d
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
2015-03-20 14:06:22 +00:00
Jani Heikkinen
2b75c156b6 Updated BSD licensed file headers
Change-Id: I6441ff931dbd33b698d762e6f6784898f3f60fe7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-02-15 07:41:17 +00:00
Jani Heikkinen
83a5694dc2 Update copyright headers
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.

Outdated header.LGPL removed (use header.LGPL21 instead)

Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)

Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination

Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-02-11 06:49:51 +00:00
Kai Koehne
883f672db5 QOpenGLWindow example: Remove unused code
Change-Id: Ide47a9edf726298b2032e45d6865511801f94fcb
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-01-13 12:59:38 +01:00
Jørgen Lind
cd7532ad7b Fix a couple of bugs in the QOpenGLWindow example
Also make the fragment shader a bit simpler

Change-Id: Ie50940da0a4f896504c9f5962cdb6c455983302f
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-01-10 19:40:31 +01:00
Frederik Gladhorn
34aba4724f Merge remote-tracking branch 'origin/5.4' into dev
Conflicts:
	src/corelib/io/qiodevice.cpp
	src/plugins/bearer/linux_common/qofonoservice_linux.cpp
	src/plugins/bearer/linux_common/qofonoservice_linux_p.h
	src/plugins/platforms/android/qandroidplatformtheme.cpp
	src/tools/bootstrap/bootstrap.pro
	src/widgets/styles/qmacstyle_mac.mm

Change-Id: Ia02aab6c4598ce74e9c30bb4666d5e2ef000f99b
2014-11-24 13:39:13 +01:00
Alessandro Portale
82e266a83b New Qt logo
This patch replaces the old Qt logo with the new, flatter one.

The PNGs were optimized via: optipng  -o7 -strip "all"

Task-number: QTBUG-41685
Change-Id: I51983a45144373bf7aee31a32990ecbb2582f488
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2014-11-05 08:10:42 +01:00
Frederik Gladhorn
2eb26c1709 Merge remote-tracking branch 'origin/5.4' into dev
Conflicts:
	src/gui/text/qfontdatabase.cpp

Change-Id: I6ac1f55faa22b8e7b591386fb67f0333d0ea443d
2014-10-27 13:00:36 +01:00
Laszlo Agocs
c1fc540273 Further restrict the threaded opengl example
Mesa llvmpipe (e.g. the opengl32sw.dll we are shipping) cannot
handle threading either.

Change-Id: Id822736c4a9eef39e56776dcd1f398fc31ebc0f4
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
2014-10-23 18:11:08 +02:00
Frederik Gladhorn
3361fcbc28 Merge remote-tracking branch 'origin/5.4' into dev
Change-Id: If7e51514ed6832750e3ad967e4d322ccf920d2bb
2014-10-20 19:12:25 +02:00
Laszlo Agocs
59c68e6830 Remove unused variable in opengl examples
To avoid warnings with some compilers

Change-Id: Iabe4f38c0bee29ab17149120d12ce198b49547c8
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2014-10-20 11:53:33 +02:00
Laszlo Agocs
0ff3e7d155 Make hellowindow multi display capable on embedded
Platforms like eglfs allow a single window per screen. Thus the behavior of
--multiple is not suitable since it tries to open multiple windows on the
primary screen. Instead, introduce --multiscreen.

Add also --timeout to quit the app after 10 seconds. This is essential on
platforms that do not have windows with decorations that can be used to
close windows.

With eglfs' kms/drm hooks, starting with --multiscreen will now show a
rotating logo on all connected displays, with some random background color.

Change-Id: I53f2651f05620e752c289038a9b3ff4508273173
Reviewed-by: Louai Al-Khanji <louai.al-khanji@digia.com>
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
2014-10-16 14:41:19 +02:00
Friedemann Kleint
eaf04207bd Improve threadedqopenglwidget example.
Retrieve vendor/renderer name similar to context info
and exclude renderers that do not support threaded
Open GL (ANGLE/noveau).

Change-Id: I690c2fc277538bf28bf1f6032c2e017ede15e434
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
2014-10-10 13:17:13 +02:00
Nico Vertriest
54853c5f66 Doc: Use title case in section1 titles
Using Python script title-cased.py

Task-number: QTBUG-41250
Change-Id: I00d3d7a0b30db7304a7904efd6d63abd9a7b493b
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2014-09-30 13:52:51 +02:00
Laszlo Agocs
7824a9ba31 Make qopenglwidget example functional without timers too
Change-Id: I6a89eaf794202c45a5ad3152d304e46041704730
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
2014-09-30 09:38:44 +02:00
Laszlo Agocs
f4ae4f41b0 hellowindow: Set all the state for each frame
Trying to be smart and minimizing the amount of GL calls per frame
to provide a good example was a mistake (in a way): There are
components, like the eglfs mouse cursor, that change the context state.
To make sure the example work in these cases, set the state upon
each frame.

Change-Id: Ief1fd7bbb0fb1955a64dac97a071b7a3d9d506d4
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
2014-09-04 14:06:42 +02:00
Laszlo Agocs
8688656641 Use QMenuBar::addMenu in the qopenglwidget example
Like in all other places. This way the resulting QMenu is correctly
parented so it will show up at the proper position even on platforms
which do not have a way to position top-level windows.

Task-number: QTBUG-29025
Change-Id: I2aa6fe73699379029c44a3f379366a2133753190
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
2014-08-25 17:40:18 +02:00
Laszlo Agocs
a0cc43fbc8 Set a size in qopenglwindow example
Use showMaximized(). Just calling show() without setting a size can result
in a zero-sized, invisible window on some platforms.

Change-Id: Ifa48258060e3d651c2fac3a1409a26a2c3db6bdb
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
2014-08-24 23:01:39 +02:00
Laszlo Agocs
6f7bc2a707 Avoid transparency in qopenglwindow example
On systems that give alpha configs by default writing alpha values of
less than 1.0 is a bad idea since it will lead to the content behind the
window becoming visible, even though this is not the example's intention.

Change-Id: I23cdfc1fb78d77b1cbc192d2aba5d6665a7acfcc
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
2014-08-14 11:02:45 +02:00
Laszlo Agocs
5621a7c501 Fix composition for windows with alpha
While we will cover the entire surface with our textured quads, the clear
is still necessary in order to make top-levels with TranslucentBackground
render correctly: We don't want to blend transparent areas with undefined
content that is in the surface's framebuffer.

Blending is problematic for alpha values. We now prevent the blended alpha
from being written out. This ensures that in examples like qquickviewcomparison,
where the backingstore image contains an alpha of 0.5 while the QQuickWidget
texture 1.0, the result is still an alpha value of 1.0 in the final image.
Writing out an alpha of 0.5 would break on systems where windows get an alpha
buffer by default.

hellogl2 can now take a --transparent parameter which makes the QOpenGLWidget
being cleared to transparent in order to verify it works in combination
with Qt::WA_TranslucentBackground.

The swapped red and blue problem is also corrected. RGBA8888 does not need
swizzling. The only format that needs this is RGB32.

Task-number: QTBUG-40716
Change-Id: I54a9fd3a91a1b59575b38cdb908835315514e40f
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
2014-08-13 16:14:19 +02:00
Laszlo Agocs
611558d877 Modernize the OpenGL examples
Change them to use QOpenGLWidget and QOpenGLTexture.
Advocate also the usage of VBOs.

Hopeless examples, that rely on the fixed pipeline and will
not compile or work in ES and dynamic builds, are moved to
a "legacy" directory. The documentation pages for these are
removed. This long due change avoids the confusion newcomers
experience when trying to get started with Qt 5 and OpenGL.

hellowindow's behavior is changed to open a single window only
by default. The old default behavior, that opened three windows
on platforms that supported both MultipleWindows & ThreadedOpenGL,
can be requested by passing --multiple. --single is removed since it
is the default now. This plays much nicer with drivers that have
issues with threading.

In addition, say hello to hellogl2.

This is the old hellogl example updated to use QOpenGLWidget and
OpenGL 2. It also has a mainwindow with multiple (un)dockable widgets
containing the OpenGL widgets. This helps testing the behavior when
the top-level of the QOpenGLWidget changes and provides a very
important example of how to do proper resource management in this case.
(must use aboutToBeDestroyed() of the context, since the context goes
away and is replaced by a new one on every dock/undock)

As a bonus, the logo is now real 3D, no more orthographic nonsense.

Launch with --multisample to request 4x MSAA.

Launch with --coreprofile to request 3.2 Core. In this particular example
the shaders are present in both versions and there is a VAO so the application
is functional with core profile contexts.

Change-Id: Id780a80cb0708ef164cc172450ed74050f065596
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
2014-08-12 07:47:23 +02:00
Laszlo Agocs
78221fe762 Clean up the QOpenGLWindow example
1. Use includes without module prefixes, as is the custom in examples.
2. No inline functions to make it more readable.
3. Pause animation on pressing P and document our signal connection a bit more.

Change-Id: I68dc3d4c74b639cf3fec17b63b7f49626db58bdb
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
2014-08-07 09:19:15 +02:00
Laszlo Agocs
4ff12977d8 Add missing precision qualifiers in qopenglwindow example
Make GLES implementations happy.

Change-Id: Ib389e379f23794eee0fa71ca26b863e56cee662e
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
2014-08-07 09:03:50 +02:00