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PyQt demo app (#21625) 

* build python helpers lib

* call setMainWindow from python

* put in helper lib

* linter

* move to scripts
This commit is contained in:
Willem Melching 2021-10-29 12:37:17 +02:00 committed by GitHub
parent 1f39d8cee6
commit 25e4e94691
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5 changed files with 64 additions and 17 deletions
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14
scripts/pyqt_demo.py Executable file
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@ -0,0 +1,14 @@
#!/usr/bin/env python3
from PyQt5.QtWidgets import QApplication, QLabel # pylint: disable=no-name-in-module, import-error
from selfdrive.ui.qt.python_helpers import set_main_window
if __name__ == "__main__":
app = QApplication([])
label = QLabel('Hello World!')
# Set full screen and rotate
set_main_window(label)
app.exec_()

4
selfdrive/ui/SConscript
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@ -22,7 +22,7 @@ widgets_src = ["qt/util.cc", "qt/widgets/input.cc", "qt/widgets/drive_stats.cc",
"qt/widgets/ssh_keys.cc", "qt/widgets/toggle.cc", "qt/widgets/controls.cc",
"qt/widgets/offroad_alerts.cc", "qt/widgets/prime.cc", "qt/widgets/keyboard.cc",
"qt/widgets/scrollview.cc", "qt/widgets/cameraview.cc", "#third_party/qrcode/QrCode.cc", "qt/api.cc",
"qt/request_repeater.cc"]
"qt/request_repeater.cc", "qt/qt_window.cc"]
if arch != 'aarch64':
widgets_src += ["qt/offroad/networking.cc", "qt/offroad/wifiManager.cc"]
@ -48,6 +48,8 @@ qt_env.Program("_soundd", "soundd.cc", LIBS=base_libs)
if GetOption('test'):
qt_env.Program("tests/playsound", "tests/playsound.cc", LIBS=base_libs)
qt_env.SharedLibrary("qt/python_helpers", ["qt/qt_window.cc"], LIBS=qt_libs)
# spinner and text window
qt_env.Program("qt/text", ["qt/text.cc"], LIBS=qt_libs)
qt_env.Program("qt/spinner", ["qt/spinner.cc"], LIBS=qt_libs)

21
selfdrive/ui/qt/python_helpers.py Normal file
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@ -0,0 +1,21 @@
import os
from cffi import FFI
import sip # pylint: disable=import-error
from common.ffi_wrapper import suffix
from common.basedir import BASEDIR
def get_ffi():
lib = os.path.join(BASEDIR, "selfdrive", "ui", "qt", "libpython_helpers" + suffix())
ffi = FFI()
ffi.cdef("void set_main_window(void *w);")
return ffi, ffi.dlopen(lib)
def set_main_window(widget):
ffi, lib = get_ffi()
lib.set_main_window(ffi.cast('void*', sip.unwrapinstance(widget)))

25
selfdrive/ui/qt/qt_window.cc Normal file
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@ -0,0 +1,25 @@
#include "selfdrive/ui/qt/qt_window.h"
void setMainWindow(QWidget *w) {
const bool wide = (QGuiApplication::primaryScreen()->size().width() >= WIDE_WIDTH) ^
(getenv("INVERT_WIDTH") != NULL);
const float scale = util::getenv("SCALE", 1.0f);
w->setFixedSize(QSize(wide ? WIDE_WIDTH : 1920, 1080) * scale);
w->show();
#ifdef QCOM2
QPlatformNativeInterface *native = QGuiApplication::platformNativeInterface();
wl_surface *s = reinterpret_cast<wl_surface*>(native->nativeResourceForWindow("surface", w->windowHandle()));
wl_surface_set_buffer_transform(s, WL_OUTPUT_TRANSFORM_270);
wl_surface_commit(s);
w->showFullScreen();
#endif
}
extern "C" {
void set_main_window(void *w) {
setMainWindow((QWidget*)w);
}
}

17
selfdrive/ui/qt/qt_window.h
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@ -18,19 +18,4 @@ const QString ASSET_PATH = ":/";
const int WIDE_WIDTH = 2160;
inline void setMainWindow(QWidget *w) {
const bool wide = (QGuiApplication::primaryScreen()->size().width() >= WIDE_WIDTH) ^
(getenv("INVERT_WIDTH") != NULL);
const float scale = util::getenv("SCALE", 1.0f);
w->setFixedSize(QSize(wide ? WIDE_WIDTH : 1920, 1080) * scale);
w->show();
#ifdef QCOM2
QPlatformNativeInterface *native = QGuiApplication::platformNativeInterface();
wl_surface *s = reinterpret_cast<wl_surface*>(native->nativeResourceForWindow("surface", w->windowHandle()));
wl_surface_set_buffer_transform(s, WL_OUTPUT_TRANSFORM_270);
wl_surface_commit(s);
w->showFullScreen();
#endif
}
void setMainWindow(QWidget *w);