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obs-studio-ftl/UI/qt-display.cpp at develop · mixer/obs-studio-ftl · GitHub
This repository was archived by the owner on Jul 21, 2020. It is now read-only.
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obs-studio-ftl
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UI
/
qt-display.cpp
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obs-studio-ftl
/
UI
/
qt-display.cpp
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#
include
"
qt-display.hpp
"
#
include
"
qt-wrappers.hpp
"
#
include
"
display-helpers.hpp
"
#
include
<
QWindow
>
#
include
<
QScreen
>
#
include
<
QResizeEvent
>
#
include
<
QShowEvent
>
OBSQTDisplay::OBSQTDisplay
(QWidget *parent, Qt::WindowFlags flags)
: QWidget(parent, flags)
{
setAttribute
(Qt::WA_PaintOnScreen);
setAttribute
(Qt::WA_StaticContents);
setAttribute
(Qt::WA_NoSystemBackground);
setAttribute
(Qt::WA_OpaquePaintEvent);
setAttribute
(Qt::WA_DontCreateNativeAncestors);
setAttribute
(Qt::WA_NativeWindow);
auto
windowVisible = [
this
] (
bool
visible)
{
if
(!visible)
return
;
if
(!display) {
CreateDisplay
();
}
else
{
QSize size =
GetPixelSize
(
this
);
obs_display_resize
(display, size.
width
(), size.
height
());
}
};
auto
sizeChanged = [
this
] (QScreen*)
{
CreateDisplay
();
QSize size =
GetPixelSize
(
this
);
obs_display_resize
(display, size.
width
(), size.
height
());
};
connect
(
windowHandle
(), &QWindow::visibleChanged, windowVisible);
connect
(
windowHandle
(), &QWindow::screenChanged, sizeChanged);
}
void
OBSQTDisplay::CreateDisplay
()
{
if
(display || !
windowHandle
()->
isExposed
())
return
;
QSize size =
GetPixelSize
(
this
);
gs_init_data info = {};
info.
cx
= size.
width
();
info.
cy
= size.
height
();
info.
format
=
GS_RGBA
;
info.
zsformat
=
GS_ZS_NONE
;
QTToGSWindow
(
winId
(), info.
window
);
display =
obs_display_create
(&info);
emit
DisplayCreated
(
this
);
}
void
OBSQTDisplay::resizeEvent
(QResizeEvent *event)
{
QWidget::resizeEvent
(event);
CreateDisplay
();
if
(
isVisible
() && display) {
QSize size =
GetPixelSize
(
this
);
obs_display_resize
(display, size.
width
(), size.
height
());
}
emit
DisplayResized
();
}
void
OBSQTDisplay::paintEvent
(QPaintEvent *event)
{
CreateDisplay
();
QWidget::paintEvent
(event);
}
QPaintEngine *
OBSQTDisplay::paintEngine
()
const
{
return
nullptr
;
}
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