def initTimes(self):
# Create the local and elapsed times labels
self.counter = 0
self.elapsedTime = QLabel()
self.localTime = QLabel()
# Base font for colours
font = QFont()
font.setBold(True)
font.setItalic(True)
# Center labels, transparent backgrounds, fonts, and colours
for x in [self.elapsedTime, self.localTime]:
# TODO: Scale times with app resize
x.setFixedWidth(100)
x.setAlignment(Qt.AlignCenter)
x.setFont(font)
x.setStyleSheet("color: rgb(255, 255, 255)")
# Start the elapsedTime timer
timer = QTimer(self)
timer.timeout.connect(self.updateTimes)
# Call updateTimes first to get the times displayed on startUp
self.updateTimes()
timer.start(500)
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.counter = 0
layout = QVBoxLayout()
self.l = QLabel("Start")
b = QPushButton("DANGER!")
b.pressed.connect(self.oh_no)
layout.addWidget(self.l)
layout.addWidget(b)
w = QWidget()
w.setLayout(layout)
self.setCentralWidget(w)
self.show()
self.timer = QTimer()
self.timer.setInterval(1000)
self.timer.timeout.connect(self.recurring_timer)
self.timer.start()
def oh_no(self):
time.sleep(5)
def recurring_timer(self):
self.counter += 1
self.l.setText("Count: %d" % self.counter)
def __init__(self, graphicsObject: QGraphicsObject):
super().__init__()
self._graphicsObject = graphicsObject
timer = QTimer(self.GraphicsObject())
timer.timeout.connect(self.Update)
timer.start(30)
def __init__(self):
super().__init__()
StylesheetLoader.RegisterWidget(self)
self.setWindowIcon(QIcon("Images/UCIcon.png"))
centralLayout = QVBoxLayout()
centralWidget = QWidget()
centralWidget.setLayout(centralLayout)
self.setCentralWidget(centralWidget)
self._tabWidget = QTabWidget()
centralLayout.addWidget(self._tabWidget)
menuBar = MenuBar()
self.setMenuBar(menuBar)
menuBar.saveProgram.connect(
lambda: self._tabWidget.currentWidget().SaveProgram())
menuBar.closeProgram.connect(
lambda: self.RequestCloseTab(self._tabWidget.currentIndex()))
self._tabWidget.tabCloseRequested.connect(self.RequestCloseTab)
self._tabWidget.setTabsClosable(True)
timer = QTimer(self)
timer.timeout.connect(self.CheckPrograms)
timer.start(30)
def __init__(self, programInstance: ProgramInstance, uniqueRun):
super().__init__()
AppGlobals.Instance().onChipModified.connect(self.UpdateParameterItems)
self.editingParameterVisibility = False
self.programInstance = programInstance
self.uniqueRun = uniqueRun
self._programNameWidget = QLabel()
layout = QVBoxLayout()
self.setLayout(layout)
self.runButton = QPushButton("Run")
self.runButton.clicked.connect(self.RunProgram)
self._stopButton = QPushButton("Stop")
self._stopButton.clicked.connect(self.StopProgram)
self.parameterItems: List[ProgramParameterItem] = []
self._parametersLayout = QVBoxLayout()
layout.addWidget(self._programNameWidget)
layout.addLayout(self._parametersLayout)
layout.addWidget(self.runButton)
layout.addWidget(self._stopButton)
timer = QTimer(self)
timer.timeout.connect(self.UpdateInstanceView)
timer.start(30)
self.UpdateInstanceView()
self.UpdateParameterItems()
def __init__(self):
super(Window, self).__init__()
aliasedLabel = self.createLabel("Aliased")
antialiasedLabel = self.createLabel("Antialiased")
intLabel = self.createLabel("Int")
floatLabel = self.createLabel("Float")
layout = QGridLayout()
layout.addWidget(aliasedLabel, 0, 1)
layout.addWidget(antialiasedLabel, 0, 2)
layout.addWidget(intLabel, 1, 0)
layout.addWidget(floatLabel, 2, 0)
timer = QTimer(self)
for i in range(2):
for j in range(2):
w = CircleWidget()
w.setAntialiased(j != 0)
w.setFloatBased(i != 0)
timer.timeout.connect(w.nextAnimationFrame)
layout.addWidget(w, i + 1, j + 1)
timer.start(100)
self.setLayout(layout)
self.setWindowTitle("Concentric Circles")
class DirectoryWidget(QToolButton):
Sg_double_clicked = Signal(str)
def __init__(self):
super(DirectoryWidget, self).__init__()
self.timer = QTimer()
self.timer.setSingleShot(True)
self.clicked.connect(self.Sl_check_double_click)
self.setAccessibleName('Directory')
self.setIcon(QIcon(resource_path("icons/Cartella.png")))
self.setIconSize(QSize(45, 45))
self.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
@Slot()
def Sl_check_double_click(self):
success = False
if self.timer.isActive():
time = self.timer.remainingTime()
if time > 0:
self.double_clicked_action()
success = True
self.timer.stop()
if time <= 0:
self.timer.start(250)
if not self.timer.isActive() and not success:
self.timer.start(250)
def double_clicked_action(self) -> None:
pass
class FileWidget(QToolButton):
Sg_double_clicked = Signal()
def __init__(self, file: File):
super(FileWidget, self).__init__()
self.timer = QTimer()
self.timer.setSingleShot(True)
self.clicked.connect(self.check_double_click)
self.Sg_double_clicked.connect(self.Sl_on_double_click)
self.setAccessibleName('File')
self.name = file.get_name()
self.creation_date = file.get_creation_date()
self.last_modified_date = file.get_last_modified_date()
self.extension = self.get_extension()
self.set_icon()
self.setText(self.name)
def get_extension(self) -> str:
if self.name.find('.') != -1:
e = self.name.split(".")
return e[-1]
else:
return "no"
def set_icon(self):
self.setIconSize(QSize(45, 45))
self.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
if self.extension in ["txt", "xml", "json", "docx", "xlsx"]:
self.setIcon(QIcon(resource_path('icons/Txt.png')))
elif self.extension in ["mp4", "avi", "mpeg", "wmv"]:
self.setIcon(QIcon(resource_path('icons/Video.png')))
elif self.extension in ["jpg", "png", "gif"]:
self.setIcon(QIcon(resource_path('icons/Immagine.png')))
elif self.extension in ["mp3", "wav", "ogg"]:
self.setIcon(QIcon(resource_path('icons/Audio.png')))
else:
self.setIcon(QIcon(resource_path('icons/DocGenerico.png')))
def check_double_click(self):
if self.timer.isActive():
time = self.timer.remainingTime()
if time > 0:
self.Sg_double_clicked.emit()
self.timer.stop()
if time <= 0:
self.timer.start(250)
if self.timer.isActive() is False:
self.timer.start(250)
@Slot()
def Sl_on_double_click(self):
pass
def test_clustering_analyzer(self):
dataset = random_dataset(**SIMPLE_PRESET, n_samples=200)
main = ClusteringAnalyzer()
main.show()
main.on_dataset_loaded(dataset)
timer = QTimer()
timer.setSingleShot(True)
timer.timeout.connect(main.save_result)
timer.start(2000)
app.exec()
def create_progress_bar(self):
result = QProgressBar()
init_widget(result, "progressBar")
result.setRange(0, 10000)
result.setValue(0)
timer = QTimer(self)
timer.timeout.connect(self.advance_progressbar)
timer.start(1000)
return result
def _create_timer(fn, period: int) -> QTimer:
timer = QTimer()
def _update_cycle():
timer.stop()
fn()
timer.start(period)
timer.timeout.connect(_update_cycle)
timer.start(period)
return timer
def __init__(self, dataType: DataType):
super().__init__()
self.dataType = dataType
AppGlobals.Instance().onChipModified.connect(self.Repopulate)
self.Repopulate()
timer = QTimer(self)
timer.timeout.connect(self.UpdateNames)
timer.start(30)
class StylesheetLoader:
_instance = None
@staticmethod
def _GetInstance():
if StylesheetLoader._instance is None:
StylesheetLoader._instance = StylesheetLoader()
return StylesheetLoader._instance
@staticmethod
def RegisterWidget(widget: QWidget):
instance = StylesheetLoader._GetInstance()
if instance.stylesheet is None:
instance.ReloadSS()
instance.widgetsList.append(widget)
widget.setStyleSheet(instance.stylesheet)
@staticmethod
def UnregisterWidget(widget: QWidget):
instance = StylesheetLoader._GetInstance()
if widget in instance.widgetsList:
instance.widgetsList.remove(widget)
def __init__(self):
self.widgetsList: typing.List[QWidget] = []
self.updateTimer = QTimer(QApplication.topLevelWidgets()[0])
self.updateTimer.timeout.connect(self.TimerUpdate)
self.updateTimer.start(1000)
self.lastModifiedTime = None
self.scriptFilename = "UI/STYLESHEET.css"
self.stylesheet = None
def TimerUpdate(self):
currentModifiedTime = os.path.getmtime(self.scriptFilename)
if currentModifiedTime != self.lastModifiedTime:
self.ReloadSS()
self.lastModifiedTime = currentModifiedTime
def ReloadSS(self):
f = open(self.scriptFilename)
self.stylesheet = f.read()
self.widgetsList: typing.List[QWidget] = [
widget for widget in self.widgetsList if widget
]
for widget in self.widgetsList:
widget.setStyleSheet(self.stylesheet)
widget.setStyle(widget.style())
def __init__(self):
super().__init__()
self.shape1 = None
self.x_rot_speed = 1
self.x_shape_rot = 0
self.y_rot_speed = 1
self.y_shape_rot = 0
self.z_rot_speed = 0
self.z_shape_rot = 0
timer = QTimer(self)
timer.timeout.connect(self.advance)
timer.start(20)
class Face_Get(QMainWindow, DesktopUI):
def __init__(self):
super(Face_Get, self).__init__()
self.face_cascade = cv2.CascadeClassifier(
cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')
self.setupUi(self)
self.label.setText('摄像头载入中。。。')
self.__set_camera()
self.pushButton.clicked.connect(self.catch_pic)
self.frame = None
self.num = 0
self.file_path = Path(__file__).parent / Path('face')
self.nm = QNetworkAccessManager(self)
self.nm.finished.connect(self.fffff)
def __set_camera(self):
self.capture = cv2.VideoCapture(0)
self.capture.set(cv2.CAP_PROP_FRAME_WIDTH, self.label.width())
self.capture.set(cv2.CAP_PROP_FRAME_HEIGHT, self.label.height())
self.timer = QTimer()
self.timer.timeout.connect(self.display_pic)
self.timer.start(30)
def display_pic(self):
ret, face = self.capture.read()
self.frame = face
frame = cv2.flip(cv2.cvtColor(face, cv2.COLOR_RGB2BGR), 1)
image = QImage(frame, frame.shape[1], frame.shape[0],
frame.strides[0], QImage.Format_RGB888)
self.label.setPixmap(QPixmap.fromImage(image))
def catch_pic(self):
frame_detected = self.face_cascade.detectMultiScale(self.frame, scaleFactor=1.1, minNeighbors=5)
try:
x, y, w, h = frame_detected[0]
except IndexError:
self.label_2.setText('没有检测到人脸')
else:
if not self.file_path.exists():
self.file_path.mkdir()
cv2.imwrite(f'{str(self.file_path)}/{self.num}.jpg', self.frame[y:y + h, x:x + w])
self.num += 1
self.label_2.setText(f"第{self.num}张已生成")
def network(self):
url = QUrl("http://127.0.0.1:8000/excel_get")
res = QNetworkRequest(url)
self.nm.get(res)
def fffff(self, reply):
print(reply.readAll())
def __init__(self):
super().__init__()
AppGlobals.Instance().onChipDataModified.connect(self.UpdateTitle)
AppGlobals.Instance().onChipOpened.connect(self.UpdateTitle)
AppGlobals.Instance().onChipSaved.connect(self.UpdateTitle)
StylesheetLoader.RegisterWidget(self)
self.chipEditor = ChipEditor()
self.setCentralWidget(self.chipEditor)
self.resize(self.screen().size() / 2)
self.move(self.screen().size().width() / 2, 0)
self.setWindowIcon(QIcon("Images/UCIcon.png"))
self._rigViewer = RigViewer()
self._editorWindow = ProgramEditorWindow()
self._programList = ProgramList(self)
self._programList.onProgramEditRequest.connect(self.EditProgram)
self._runningProgramsList = RunningProgramsList()
self._editorWindow.setVisible(False)
menuBar = MenuBar()
menuBar.new.connect(self.NewChip)
menuBar.open.connect(self.OpenChip)
menuBar.save.connect(self.SaveChip)
menuBar.saveAs.connect(lambda: self.SaveChip(True))
menuBar.exit.connect(self.close)
menuBar.showRigView.connect(self.ShowRigWidget)
menuBar.showProgramList.connect(self.ShowProgramList)
menuBar.zoomToFit.connect(self.chipEditor.viewer.Recenter)
self.updateWorker = ProgramRunnerWorker(self)
self.updateWorker.start()
killTimer = QTimer(self)
killTimer.timeout.connect(self.CheckForKill)
killTimer.start(1000)
self.setMenuBar(menuBar)
self.ShowRigWidget()
self.ShowProgramList()
self.ShowProgramEditorWindow()
self.ShowRunningProgramsList()
self._editorWindow.close()
AppGlobals.OpenChip(Chip())
class MainWindow(QtWidgets.QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.threadpool = QtCore.QThreadPool() # 初始化线程池
print("Multithreading with maximum %d threads" % self.threadpool.maxThreadCount())
self.counter = 0
layout = QtWidgets.QVBoxLayout()
self.l = QtWidgets.QLabel("Start")
b = QtWidgets.QPushButton("DANGER!")
b.pressed.connect(self.oh_no)
layout.addWidget(self.l)
layout.addWidget(b)
w = QWidget()
w.setLayout(layout)
self.setCentralWidget(w)
self.show()
self.timer = QTimer()
self.timer.setInterval(1000)
self.timer.timeout.connect(self.recurring_timer)
self.timer.start()
def oh_no(self):
worker = Worker(iterations=random.randint(10, 50))
worker.signals.result.connect(self.worker_output)
worker.signals.finished.connect(self.worker_complete)
worker.signals.error.connect(self.worker_error)
self.threadpool.start(worker)
def worker_output(self, s):
print("RESULT", s)
def worker_complete(self):
print("THREAD COMPLETE!")
def worker_error(self, t):
print("ERROR: %s" % t)
def recurring_timer(self):
self.counter += 1
self.l.setText("Counter: %d" % self.counter)
def slot_save(self) -> None:
save_all_databases()
# Misuse message dialog as notification https://stackoverflow.com/a/43134238
msgbox = QMessageBox(self)
msgbox.setWindowTitle('Save')
msgbox.setText('Saved pointers, constraints and annotations.')
msgbox.setModal(False)
msgbox.show()
# Automatically hide dialog after half a second
timer = QTimer(self)
timer.timeout.connect(msgbox.close)
timer.timeout.connect(timer.stop)
timer.timeout.connect(timer.deleteLater)
timer.start(500)
class EntropyWidget(QWidget):
def __init__(self, parent, view, data):
super(EntropyWidget, self).__init__(parent)
self.view = view
self.data = data
self.raw_data = data.file.raw
self.block_size = (len(self.raw_data) / 4096) + 1
if self.block_size < 1024:
self.block_size = 1024
self.width = int(len(self.raw_data) / self.block_size)
self.image = QImage(self.width, 1, QImage.Format_ARGB32)
self.image.fill(QColor(0, 0, 0, 0))
self.thread = EntropyThread(self.raw_data, self.image, self.block_size)
self.started = False
self.timer = QTimer()
self.timer.timeout.connect(self.timerEvent)
self.timer.setInterval(100)
self.timer.setSingleShot(False)
self.timer.start()
self.setMinimumHeight(UIContext.getScaledWindowSize(32, 32).height())
def paintEvent(self, event):
p = QPainter(self)
p.drawImage(self.rect(), self.image)
p.drawRect(self.rect())
def sizeHint(self):
return QSize(640, 32)
def timerEvent(self):
if not self.started:
self.thread.start()
self.started = True
if self.thread.updated:
self.thread.updated = False
self.update()
def mousePressEvent(self, event):
if event.button() != Qt.LeftButton:
return
frac = float(event.x()) / self.rect().width()
offset = int(frac * self.width * self.block_size)
self.view.navigateToFileOffset(offset)
class Backend(QObject):
updated = Signal(str, arguments=['time'])
def __init__(self):
super().__init__()
# Define timer.
self.timer = QTimer()
self.timer.setInterval(100) # msecs 100 = 1/10th sec
self.timer.timeout.connect(self.update_time)
self.timer.start()
def update_time(self):
# Pass the current time to QML.
curr_time = strftime("%H:%M:%S", localtime())
self.updated.emit(curr_time)
def incorrect(self):
"""Вызывается, если на вопрос был дан неверный ответ."""
global next_question_delay, bad_words, is_auto_next, is_repeat, is_reset_progress, repeats_amount, \
is_smart_offer
# Отключение происходит сразу же, чтобы пользователь больше не нажимал
# на кнопки с последствиями
self.designalize_buttons()
# НЕ в режиме повторения добавляем ошибочное слово в список для дальнейшего повторения
if not is_repeat:
bad_words.append(self.current_word)
if is_smart_offer:
self.smart_add()
# В режиме повторения, если включена опция, сбрасываем прогресс для слова,
# если ответ на него неверен
elif is_repeat and is_reset_progress:
self.word_progress[self.current_repeat_w] = repeats_amount
# Меняем стиль виджетов
self.ui.l_header.setText("Неправильно!")
self.ui.l_header.setObjectName("training-header-incorr")
self.ui.l_header.style().unpolish(self.ui.l_header)
self.ui.l_header.style().polish(self.ui.l_header)
self.ui.progressBar.setObjectName("training-prb-incorr")
self.ui.progressBar.style().unpolish(self.ui.progressBar)
self.ui.progressBar.style().polish(self.ui.progressBar)
# Показываем правильный ответ
self.show_correct()
self.update_stats()
# Аналогично, как и в correct()
if is_auto_next:
# Создаём таймер, по истечению которого перейдём к следующему вопросу.
a_timer = QTimer()
a_timer.singleShot(next_question_delay, self.next_question)
a_timer.start()
else:
self.ui.pb_next.show()
def __init__(self, clipboard):
QWidget.__init__(self)
self.mouse_pos = None
self.layout = QVBoxLayout()
self.top_bar = TopBar()
self.layout.addWidget(self.top_bar)
self.view = ModeBasedListView(clipboard)
self.layout.addWidget(self.view)
self.setLayout(self.layout)
self.refresh()
timer = QTimer(self)
timer.timeout.connect(self.refresh)
timer.start(500)
class ImageViewerModel(QObject):
image_url_changed = Signal(str)
def __init__(self, dirname, parent=None):
super().__init__(parent)
self.__image_url = ''
self.__dirname = dirname
self.__image_list = []
self.__timer = QTimer(self)
self.__timer.setInterval(IMAGE_INTERVAL)
self.__timer.timeout.connect(self.on_timeout)
@Property(str, notify=image_url_changed)
def image_url(self):
return self.__image_url
@image_url.setter
def image_url(self, value):
if self.__image_url != value:
self.__image_url = value
self.image_url_changed.emit(self.__image_url)
@Slot()
def start_view(self):
self.init_image_list()
self.random_set_image()
self.__timer.start()
def init_image_list(self):
self.__image_list = [
str(x) for x in Path(self.__dirname).iterdir() if x.is_file()
]
def random_set_image(self):
if not self.__image_list:
return
image = random.choice(self.__image_list)
self.__image_list.remove(image)
self.image_url = f'file:///{path.join(self.__dirname, image).replace(path.sep, "/")}'
def on_timeout(self):
if not self.__image_list:
self.init_image_list()
self.random_set_image()
class WinForm(QWidget):
def __init__(self, parent=None):
super(WinForm, self).__init__(parent)
self.setWindowTitle("QTimer demo")
self.listFile = QListWidget()
self.label = QLabel('显示当前时间')
self.startBtn = QPushButton('开始')
self.endBtn = QPushButton('结束')
layout = QGridLayout(self)
# 初始化一个定时器
self.timer = QTimer(self)
# showTime()方法
self.timer.timeout.connect(self.showTime)
layout.addWidget(self.label, 0, 0, 1, 2)
layout.addWidget(self.startBtn, 1, 0)
layout.addWidget(self.endBtn, 1, 1)
self.startBtn.clicked.connect(self.startTimer)
self.endBtn.clicked.connect(self.endTimer)
self.setLayout(layout)
def showTime(self):
# 获取系统现在的时间
time = QDateTime.currentDateTime()
# 设置系统时间显示格式
timeDisplay = time.toString("yyyy-MM-dd hh:mm:ss dddd")
# 在标签上显示时间
self.label.setText(timeDisplay)
def startTimer(self):
# 设置计时间隔并启动
self.timer.start(1000)
self.startBtn.setEnabled(False)
self.endBtn.setEnabled(True)
def endTimer(self):
self.timer.stop()
self.startBtn.setEnabled(True)
self.endBtn.setEnabled(False)
class TimerQT(TimerBase):
def __init__(self, *args, **kwargs):
self._timer = QTimer()
self._timer.timeout.connect(self._on_timer)
TimerBase.__init__(self, *args, **kwargs)
def __del__(self):
self._timer_stop()
def _timer_set_single_shot(self):
self._timer.setSingleShot(self._single)
def _timer_set_interval(self):
self._timer.setInterval(self._interval)
def _timer_start(self):
self._timer.start()
def _timer_stop(self):
self._timer.stop()
def __init__(self):
super().__init__()
self.runningProgramsListLayout = QVBoxLayout()
self._console = QLabel()
self.runningProgramListItems: List[RunningProgramItem] = []
layout = QVBoxLayout()
layout.addLayout(self.runningProgramsListLayout)
clearButton = QPushButton("Clear")
clearButton.clicked.connect(
lambda: AppGlobals.ProgramRunner().ClearMessages())
layout.addWidget(clearButton)
layout.addWidget(self._console)
self.setLayout(layout)
timer = QTimer(self)
timer.timeout.connect(self.Update)
timer.start(30)
def correct(self):
"""Вызывается, если на вопрос был дан верный ответ."""
# Отключение происходит сразу же, чтобы пользователь больше не нажимал
# на кнопки с последствиями
self.designalize_buttons()
global next_question_delay, is_auto_next, is_repeat, score
# Меняем стиль виджетов
self.ui.l_header.setText("Правильно!")
self.ui.l_header.setObjectName("training-header-corr")
self.ui.l_header.style().unpolish(self.ui.l_header)
self.ui.l_header.style().polish(self.ui.l_header)
self.ui.progressBar.setObjectName("training-prb-corr")
self.ui.progressBar.style().unpolish(self.ui.progressBar)
self.ui.progressBar.style().polish(self.ui.progressBar)
score += 1
self.update_stats()
# Показываем правильный ответ
self.show_correct()
# Если мы в режиме повторения, то меняем прогресс для данного слова
if is_repeat:
self.word_progress[self.current_repeat_w] -= 1
# Срабатывает, если включена опция автоматического перехода
if is_auto_next:
# Создаём таймер, по истечению которого перейдём к следующему вопросу.
a_timer = QTimer()
a_timer.singleShot(next_question_delay, self.next_question)
a_timer.start()
# Иначе демонстрируем кнопку
else:
self.ui.pb_next.show()
def __init__(self, number, polarity):
super().__init__()
layout = QVBoxLayout()
self.setLayout(layout)
self._solenoidButton = QToolButton()
self._solenoidButton.setCheckable(True)
self._solenoidButton.clicked.connect(self.solenoidClicked.emit)
self._polarityButton = QToolButton()
self._polarityButton.clicked.connect(self.polarityClicked.emit)
layout.addWidget(self._solenoidButton)
layout.addWidget(self._polarityButton)
self.Update(number, polarity)
timer = QTimer(self)
timer.timeout.connect(self.UpdateValveState)
timer.start(30)
self._number = number
def __init__(self, parent, programInstance: ProgramInstance, listWidget):
super().__init__(parent)
self._programInstance = programInstance
self.listWidget = listWidget
container = QWidget()
self.setAutoFillBackground(True)
clayout = QVBoxLayout()
self.setLayout(clayout)
self.layout().addWidget(container)
self._editButton = QPushButton("Edit")
self._editButton.clicked.connect(
lambda: self.onEdit.emit(self._programInstance.program))
self._deleteButton = QPushButton("Delete")
self._deleteButton.clicked.connect(
lambda: self.onDelete.emit(self._programInstance.program))
layout = QVBoxLayout()
container.setLayout(layout)
QApplication.instance().installEventFilter(self)
self._instanceWidget = ProgramInstanceWidget(programInstance, False)
layout.addWidget(self._instanceWidget)
layout.addWidget(self._editButton)
layout.addWidget(self._deleteButton)
self.setFocusPolicy(Qt.ClickFocus)
timer = QTimer(self)
timer.timeout.connect(self.Reposition)
timer.start(30)
self.Reposition()
self.show()
self.raise_()
class RenderWindow(QWindow):
def __init__(self, format):
super(RenderWindow, self).__init__()
self.setSurfaceType(QWindow.OpenGLSurface)
self.setFormat(format)
self.context = QOpenGLContext(self)
self.context.setFormat(self.requestedFormat())
if not self.context.create():
raise Exception("Unable to create GL context")
self.program = None
self.timer = None
self.angle = 0
def initGl(self):
self.program = QOpenGLShaderProgram(self)
self.vao = QOpenGLVertexArrayObject()
self.vbo = QOpenGLBuffer()
format = self.context.format()
useNewStyleShader = format.profile() == QSurfaceFormat.CoreProfile
# Try to handle 3.0 & 3.1 that do not have the core/compatibility profile
# concept 3.2+ has. This may still fail since version 150 (3.2) is
# specified in the sources but it's worth a try.
if (format.renderableType() == QSurfaceFormat.OpenGL
and format.majorVersion() == 3 and format.minorVersion() <= 1):
useNewStyleShader = not format.testOption(
QSurfaceFormat.DeprecatedFunctions)
vertexShader = vertexShaderSource if useNewStyleShader else vertexShaderSource110
fragmentShader = fragmentShaderSource if useNewStyleShader else fragmentShaderSource110
if not self.program.addShaderFromSourceCode(QOpenGLShader.Vertex,
vertexShader):
raise Exception("Vertex shader could not be added: {} ({})".format(
self.program.log(), vertexShader))
if not self.program.addShaderFromSourceCode(QOpenGLShader.Fragment,
fragmentShader):
raise Exception(
"Fragment shader could not be added: {} ({})".format(
self.program.log(), fragmentShader))
if not self.program.link():
raise Exception("Could not link shaders: {}".format(
self.program.log()))
self.posAttr = self.program.attributeLocation("posAttr")
self.colAttr = self.program.attributeLocation("colAttr")
self.matrixUniform = self.program.uniformLocation("matrix")
self.vbo.create()
self.vbo.bind()
self.verticesData = vertices.tobytes()
self.colorsData = colors.tobytes()
verticesSize = 4 * vertices.size
colorsSize = 4 * colors.size
self.vbo.allocate(VoidPtr(self.verticesData),
verticesSize + colorsSize)
self.vbo.write(verticesSize, VoidPtr(self.colorsData), colorsSize)
self.vbo.release()
vaoBinder = QOpenGLVertexArrayObject.Binder(self.vao)
if self.vao.isCreated(): # have VAO support, use it
self.setupVertexAttribs()
def setupVertexAttribs(self):
self.vbo.bind()
self.program.setAttributeBuffer(self.posAttr, GL.GL_FLOAT, 0, 2)
self.program.setAttributeBuffer(self.colAttr, GL.GL_FLOAT,
4 * vertices.size, 3)
self.program.enableAttributeArray(self.posAttr)
self.program.enableAttributeArray(self.colAttr)
self.vbo.release()
def exposeEvent(self, event):
if self.isExposed():
self.render()
if self.timer is None:
self.timer = QTimer(self)
self.timer.timeout.connect(self.slotTimer)
if not self.timer.isActive():
self.timer.start(10)
else:
if self.timer and self.timer.isActive():
self.timer.stop()
def render(self):
if not self.context.makeCurrent(self):
raise Exception("makeCurrent() failed")
functions = self.context.functions()
if self.program is None:
functions.glEnable(GL.GL_DEPTH_TEST)
functions.glClearColor(0, 0, 0, 1)
self.initGl()
retinaScale = self.devicePixelRatio()
functions.glViewport(0, 0,
self.width() * retinaScale,
self.height() * retinaScale)
functions.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
self.program.bind()
matrix = QMatrix4x4()
matrix.perspective(60, 4 / 3, 0.1, 100)
matrix.translate(0, 0, -2)
matrix.rotate(self.angle, 0, 1, 0)
self.program.setUniformValue(self.matrixUniform, matrix)
if self.vao.isCreated():
self.vao.bind()
else: # no VAO support, set the vertex attribute arrays now
self.setupVertexAttribs()
functions.glDrawArrays(GL.GL_TRIANGLES, 0, 3)
self.vao.release()
self.program.release()
# swapInterval is 1 by default which means that swapBuffers() will (hopefully) block
# and wait for vsync.
self.context.swapBuffers(self)
self.context.doneCurrent()
def slotTimer(self):
self.render()
self.angle += 1
def glInfo(self):
if not self.context.makeCurrent(self):
raise Exception("makeCurrent() failed")
functions = self.context.functions()
text = """Vendor: {}\nRenderer: {}\nVersion: {}\nShading language: {}
\nContext Format: {}\n\nSurface Format: {}""".format(
functions.glGetString(GL.GL_VENDOR),
functions.glGetString(GL.GL_RENDERER),
functions.glGetString(GL.GL_VERSION),
functions.glGetString(GL.GL_SHADING_LANGUAGE_VERSION),
print_surface_format(self.context.format()),
print_surface_format(self.format()))
self.context.doneCurrent()
return text
