https://bugs.kde.org/show_bug.cgi?id=363026

            Bug ID: 363026
           Summary: Crash while changing font-size on the artistic text.
           Product: krita
           Version: git master
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: Vector Objects and Tools
          Assignee: krita-bugs-n...@kde.org
          Reporter: griffinval...@gmail.com

Artistic text crashes when changing font-size. This has a different gdb result
than changing font-type.

Reproducible: Always

Steps to Reproduce:
1. Make artistic text
2. Select a part
3. Change font.
4. crash!



gdb backtrace:
hread 1 "krita" received signal SIGSEGV, Segmentation fault.
0x00007ffff5f8198c in QPainterPath::elementCount() const ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
(gdb) thread apply all backtrace

Thread 23 (Thread 0x7fff926ca700 (LWP 12165)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007ffff5599738 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5595467 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007fffef1506fa in start_thread (arg=0x7fff926ca700)
    at pthread_create.c:333
#5  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fffa553a700 (LWP 12164)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007ffff5599738 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5595467 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff5598c89 in ?? ()
---Type <return> to continue, or q <return> to quit---
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007fffef1506fa in start_thread (arg=0x7fffa553a700)
    at pthread_create.c:333
#5  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fff91ec9700 (LWP 12163)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007ffff5599738 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5595467 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007fffef1506fa in start_thread (arg=0x7fff91ec9700)
    at pthread_create.c:333
#5  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fffc0340700 (LWP 12162)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
---Type <return> to continue, or q <return> to quit---
#1  0x00007ffff5599738 in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5595467 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007fffef1506fa in start_thread (arg=0x7fffc0340700)
    at pthread_create.c:333
#5  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fffa5d3b700 (LWP 12151)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff55997eb in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff676faa2 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#3  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007fffef1506fa in start_thread (arg=0x7fffa5d3b700)
    at pthread_create.c:333
#5  0x00007ffff4c94b5d in clone ()
---Type <return> to continue, or q <return> to quit---
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fffa65d7700 (LWP 12150)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff55997eb in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5593116 in QSemaphore::tryAcquire(int, int) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff311d7b3 in KisTileDataSwapper::waitForWork (
    this=<optimized out>)
    at
/home/krita/kde/src/krita/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#4  0x00007ffff311d9aa in KisTileDataSwapper::run (
    this=0x7ffff359f440 <(anonymous
namespace)::Q_QGS_s_instance::innerFunction()::holder+64>)
    at
/home/krita/kde/src/krita/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#5  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#6  0x00007fffef1506fa in start_thread (arg=0x7fffa65d7700)
    at pthread_create.c:333
#7  0x00007ffff4c94b5d in clone ()
---Type <return> to continue, or q <return> to quit---
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fffc0b41700 (LWP 12149)):
#0  pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffff55997eb in QWaitCondition::wait(QMutex*, unsigned long) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#2  0x00007ffff5592e8b in QSemaphore::acquire(int) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#3  0x00007ffff3103b5e in KisTileDataPooler::waitForWork (
    this=0x7ffff359f400 <(anonymous
namespace)::Q_QGS_s_instance::innerFunction()::holder>)
    at /home/krita/kde/src/krita/libs/image/tiles3/kis_tile_data_pooler.cc:165
#4  0x00007ffff310431a in KisTileDataPooler::run (
    this=0x7ffff359f400 <(anonymous
namespace)::Q_QGS_s_instance::innerFunction()::holder>)
    at /home/krita/kde/src/krita/libs/image/tiles3/kis_tile_data_pooler.cc:187
#5  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#6  0x00007fffef1506fa in start_thread (arg=0x7fffc0b41700)
    at pthread_create.c:333
#7  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
---Type <return> to continue, or q <return> to quit---

Thread 6 (Thread 0x7fffcbfff700 (LWP 12143)):
#0  0x00007ffff4c88e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffee82531c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffee82542c in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff57aa4fc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#4  0x00007ffff5758efa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#5  0x00007ffff559438c in QThread::exec() ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#6  0x00007fffef37bcd5 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5DBus.so.5
#7  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#8  0x00007fffef1506fa in start_thread (arg=0x7fffcbfff700)
    at pthread_create.c:333
#9  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fffd903c700 (LWP 12142)):
#0  0x00007ffff4c88e8d in poll () at ../sysdeps/unix/syscall-template.S:84
---Type <return> to continue, or q <return> to quit---
#1  0x00007fffee82531c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffee8256a2 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffde499906 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fffee84bb45 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fffef1506fa in start_thread (arg=0x7fffd903c700)
    at pthread_create.c:333
#6  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fffd983d700 (LWP 12141)):
#0  0x00007ffff4c88e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffee82531c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffee82542c in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffee825469 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffee84bb45 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fffef1506fa in start_thread (arg=0x7fffd983d700)
    at pthread_create.c:333
#6  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fffda03e700 (LWP 12140)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007ffff4c88e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffee82531c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffee82542c in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffda04628d in ?? ()
   from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007fffee84bb45 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fffef1506fa in start_thread (arg=0x7fffda03e700)
    at pthread_create.c:333
#6  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fffe485d700 (LWP 12139)):
#0  0x00007ffff4c88e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff35b8c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffff35ba8d7 in xcb_wait_for_event ()
   from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fffe570cdc9 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5
#4  0x00007ffff5598c89 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#5  0x00007fffef1506fa in start_thread (arg=0x7fffe485d700)
    at pthread_create.c:333
---Type <return> to continue, or q <return> to quit---
#6  0x00007ffff4c94b5d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffff7f0f8c0 (LWP 12135)):
#0  0x00007ffff5f8198c in QPainterPath::elementCount() const ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
#1  0x00007ffff5fceaf8 in QTransform::map(QPainterPath const&) const ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
#2  0x00007fffab5f02f8 in ArtisticTextShape::createOutline (
    this=this@entry=0xe24bcc0)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextShape.cpp:332
#3  0x00007fffab5f05ad in ArtisticTextShape::updateSizeAndPosition (
    this=this@entry=0xe24bcc0, global=global@entry=false)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextShape.cpp:908
#4  0x00007fffab5f144b in ArtisticTextShape::finishTextUpdate (
    this=this@entry=0xe24bcc0)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextShape.cpp:1053
#5  0x00007fffab5f31e6 in ArtisticTextShape::finishTextUpdate (this=0xe24bcc0)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextShape.cpp:1049
---Type <return> to continue, or q <return> to quit---
#6  ArtisticTextShape::setFont (this=0xe24bcc0, charIndex=<optimized out>, 
    charCount=<optimized out>, font=...)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextShape.cpp:471
#7  0x00007fffab60779e in ChangeTextFontCommand::redo (this=0xf023f40)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ChangeTextFontCommand.cpp:51
#8  0x00007ffff181415e in KUndo2Command::redo (this=0xf024d10)
    at /home/krita/kde/src/krita/libs/kundo2/kundo2stack.cpp:237
#9  0x00007ffff18160f6 in KUndo2Command::redoMergedCommands (this=0xf024d10)
    at /home/krita/kde/src/krita/libs/kundo2/kundo2stack.cpp:397
#10 0x00007ffff18170b8 in KUndo2QStack::push (this=0xca6d340, cmd=0xf024d10)
    at /home/krita/kde/src/krita/libs/kundo2/kundo2stack.cpp:711
#11 0x00007fffab5feed6 in ArtisticTextTool::changeFontProperty (
    this=this@entry=0xc9519b0, 
    property=property@entry=ArtisticTextTool::SizeProperty, value=...)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextTool.cpp:881
#12 0x00007fffab5ff1e4 in ArtisticTextTool::setFontSize (this=0xc9519b0, 
    size=<optimized out>)
    at
/home/krita/kde/src/krita/plugins/flake/artistictextshape/ArtisticTextTool.cpp:913
#13 0x00007ffff5783cef in QMetaObject::activate(QObject*, int, int, void**) ()
---Type <return> to continue, or q <return> to quit---
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#14 0x00007fffab60a1c3 in ArtisticTextShapeConfigWidget::fontSizeChanged (
    _t1=19, this=<optimized out>)
    at
/home/krita/kde/build/plugins/flake/artistictextshape/moc_ArtisticTextShapeConfigWidget.cpp:153
#15 ArtisticTextShapeConfigWidget::qt_static_metacall (_o=<optimized out>, 
    _c=<optimized out>, _id=<optimized out>, _a=<optimized out>)
    at
/home/krita/kde/build/plugins/flake/artistictextshape/moc_ArtisticTextShapeConfigWidget.cpp:82
#16 0x00007ffff5783cef in QMetaObject::activate(QObject*, int, int, void**) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#17 0x00007ffff68cb32e in QSpinBox::valueChanged(int) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#18 0x00007ffff66dac63 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#19 0x00007ffff664b75a in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#20 0x00007ffff664c6c6 in QAbstractSpinBox::stepBy(int) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#21 0x00007ffff664ab4e in QAbstractSpinBox::keyPressEvent(QKeyEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#22 0x00007ffff6590544 in QWidget::event(QEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
---Type <return> to continue, or q <return> to quit---
#23 0x00007ffff664d7f3 in QAbstractSpinBox::event(QEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#24 0x00007ffff654e04c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#25 0x00007ffff65522a9 in QApplication::notify(QObject*, QEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#26 0x00007ffff78dc457 in KisApplication::notify (this=<optimized out>, 
    receiver=0xf8629d0, event=0x7fffffffd180)
    at /home/krita/kde/src/krita/libs/ui/KisApplication.cpp:501
#27 0x00007ffff575ae80 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
    () from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#28 0x00007ffff65ad6f3 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#29 0x00007ffff654e04c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#30 0x00007ffff6552488 in QApplication::notify(QObject*, QEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5
#31 0x00007ffff78dc457 in KisApplication::notify (this=<optimized out>, 
    receiver=0xc528cb0, event=0x7fffffffd180)
    at /home/krita/kde/src/krita/libs/ui/KisApplication.cpp:501
#32 0x00007ffff575ae80 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
    () from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#33 0x00007ffff5cf7738 in
QGuiApplicationPrivate::processKeyEvent(QWindowSystemI---Type <return> to
continue, or q <return> to quit---
nterfacePrivate::KeyEvent*) ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
#34 0x00007ffff5cfc465 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
#35 0x00007ffff5cdd6a3 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Gui.so.5
#36 0x00007fffe5767720 in ?? ()
   from /home/krita/Qt/5.6/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5
#37 0x00007fffee825127 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fffee825380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fffee82542c in g_main_context_iteration ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007ffff57aa4e7 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#41 0x00007ffff5758efa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#42 0x00007ffff5760d9d in QCoreApplication::exec() ()
   from /home/krita/Qt/5.6/gcc_64/lib/libQt5Core.so.5
#43 0x0000000000404a15 in main (argc=1, argv=<optimized out>)
    at /home/krita/kde/src/krita/krita/main.cc:229
(gdb)

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