Here is my code:
import sys
import numpy as np
import pyqtgraph as pg
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QVBoxLayout
class MyGraph(QWidget):
def __init__(self):
super(MyGraph, self).__init__()
self.resize(600, 600)
pg.setConfigOption('background', 'w')
x = np.random.normal(size=1000)
y = np.random.normal(size=1000)
self.pw = pg.PlotWidget(self)
self.pw.plot(x, y, pen=None, symbol='o', symbolBrush='r')
self.plot_btn = QPushButton('Replot', self)
self.plot_btn.clicked.connect(self.plot_slot)
self.v_layout = QVBoxLayout()
self.v_layout.addWidget(self.pw)
self.v_layout.addWidget(self.plot_btn)
self.setLayout(self.v_layout)
def plot_slot(self):
x = np.random.normal(size=1000)
y = np.random.normal(size=1000)
# The new data is added to the existed one
self.pw.plot(x, y, pen=None, symbol='o', symbolBrush='r')
if __name__ == '__main__':
app = QApplication(sys.argv)
demo = MyGraph()
demo.show()
sys.exit(app.exec_())
Every time I clicked the button, I want to clean the existed data and replot the new one, but PlotWidget doesn't seem to have the relative function to let me do that.
Is there any way I can clean the data?
Thanks!
The plot method of PlotWidget generates an item that is responsible for drawing, in your case each time you press the button another plot is created so you observe that
behavior. The solution is to reuse
class MyGraph(QWidget):
def __init__(self):
super(MyGraph, self).__init__()
self.resize(600, 600)
pg.setConfigOption("background", "w")
x = np.random.normal(size=1000)
y = np.random.normal(size=1000)
self.pw = pg.PlotWidget(self)
self.plot = self.pw.plot(x, y, pen=None, symbol="o", symbolBrush="r")
self.plot_btn = QPushButton("Replot", self, clicked=self.plot_slot)
v_layout = QVBoxLayout(self)
v_layout.addWidget(self.pw)
v_layout.addWidget(self.plot_btn)
def plot_slot(self):
x = np.random.normal(size=1000)
y = np.random.normal(size=1000)
self.plot.setData(x, y)
Related
from PySide2.QtWidgets import QApplication, QMainWindow,QDialog,QLineEdit,QPushButton
from PySide2.QtCore import Qt
import sys
from ui618 import Ui_MainWindow
from numpad import Ui_Dialog
class MyWindow:
def __init__(self) -> None:
self.lastSelectedEditLine = None
# main ui
self.MainWindow = QMainWindow()
self.ui = Ui_MainWindow()
self.ui.setupUi(self.MainWindow)
# numpad
self.QDialog = QDialog(self.MainWindow)
self.numpad = Ui_Dialog()
self.numpad.setupUi(self.QDialog)
self.QDialog.setWindowFlags(Qt.Popup)
# bind editline with numpad
self.lineEdits = self.MainWindow.findChildren(QLineEdit)
for item in self.lineEdits:
item.focusInEvent = lambda e,item=item:self.test(e,item)
def save_quit(self):
sys.exit()
def bindbtn(self):
self.ui.quit.clicked.connect(self.save_quit)
def numpad_btn(self,a,item):
if item.text() != '←':
self.lastSelectedEditLine.setText(self.lastSelectedEditLine.text()+item.text())
else:
self.lastSelectedEditLine.setText(self.lastSelectedEditLine.text()[:-1])
def bindNumpad(self):
numpad_btns = self.QDialog.findChildren(QPushButton)
for item in numpad_btns:
item.clicked.connect(lambda ignore='ignore',item=item : self.numpad_btn(ignore,item))
def test(self,e,item):
self.lastSelectedEditLine = item
this = item
x = self.MainWindow.x()
y = self.MainWindow.y() + self.ui.selectX.rect().bottom()
while this.parentWidget().objectName() != 'MainWindow':
x += this.x()
y += this.y()
this = this.parentWidget()
self.QDialog.move(x, y)
self.QDialog.show()
item.clearFocus()
def show(self):
self.MainWindow.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
myWindow = MyWindow()
myWindow.show()
myWindow.bindbtn()
myWindow.bindNumpad()
sys.exit(app.exec_())
The code works as expected, the numpad shows while focusing in a qlineedit. and can write and delete to target input line.
I am new to pyside2. Is there a better way to implement the numpad? I this way, the cursor is disable, I have to edit at the end of each editline.
It take several seconds while starting, Some one know how to improve it?
I'm trying to make pyqt5 Gui that shows a webcam live feed, records the feed at the same time, and saves it locally when closed. I managed to acheieve this using Timer(QTimer) in pyqt gui but When I try to implement it using Qthread (Which I really require) only the live feed is working.
Whenever I add Code required for recording video and run the program it says Python has Stopped Working and closes. Here is my Code:
import cv2
import sys
from PyQt5.QtWidgets import QWidget, QLabel, QApplication, QVBoxLayout
from PyQt5.QtCore import QThread, Qt, pyqtSignal, pyqtSlot
from PyQt5.QtGui import QImage, QPixmap
class Thread(QThread):
changePixmap = pyqtSignal(QImage)
def run(self):
self.cap = cv2.VideoCapture(0)
self.width = int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
self.height = int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
self.codec = cv2.VideoWriter_fourcc('X', 'V', 'I', 'D')
self.writer = cv2.VideoWriter('output.avi', self.codec, 30.0, (self.width, self.height))
while self.cap.isOpened():
ret, self.frame = self.cap.read()
if ret:
self.frame = cv2.flip(self.frame, 1)
rgbimage = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgbimage.shape
bytesPerLine = ch * w
convertToQtFormat = QImage(rgbimage.data, w, h, bytesPerLine, QImage.Format_RGB888)
p = convertToQtFormat.scaled(640, 480, Qt.KeepAspectRatio)
self.changePixmap.emit(p)
class MyApp(QWidget):
def __init__(self):
super(MyApp, self).__init__()
self.title = 'Camera'
self.initUI()
def initUI(self):
self.label = QLabel(self)
lay = QVBoxLayout()
lay.addWidget(self.label)
self.setLayout(lay)
self.th = Thread()
self.th.changePixmap.connect(self.setImage)
self.th.start()
self.show()
#pyqtSlot(QImage)
def setImage(self, image):
self.label.setPixmap(QPixmap.fromImage(image))
self.th.writer.write(image)
def main():
app = QApplication(sys.argv)
ex = MyApp()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
I tried placing the .write() inside the run() of Thread class as well which is showing the same error. Can you guys point out What I'm doing wrong and how to make it work. I'm new to python and pyqt.
Thanks in Advance.
You need to separate threads. First thread is for signal, second is for the record and the main thread is for GUI. Try the following code. There is a button to start/stop the record.
import sys
import cv2
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QLabel, QVBoxLayout
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import QTimer, QThread, pyqtSignal, pyqtSlot
from PyQt5 import QtWidgets, QtCore, QtGui
#https://ru.stackoverflow.com/a/1150993/396441
class Thread1(QThread):
changePixmap = pyqtSignal(QImage)
def __init__(self, *args, **kwargs):
super().__init__()
def run(self):
self.cap1 = cv2.VideoCapture(0, cv2.CAP_DSHOW)
self.cap1.set(3,480)
self.cap1.set(4,640)
self.cap1.set(5,30)
while True:
ret1, image1 = self.cap1.read()
if ret1:
im1 = cv2.cvtColor(image1, cv2.COLOR_BGR2RGB)
height1, width1, channel1 = im1.shape
step1 = channel1 * width1
qImg1 = QImage(im1.data, width1, height1, step1, QImage.Format_RGB888)
self.changePixmap.emit(qImg1)
class Thread2(QThread):
def __init__(self, *args, **kwargs):
super().__init__()
self.active = True
def run(self):
if self.active:
self.fourcc = cv2.VideoWriter_fourcc(*'XVID')
self.out1 = cv2.VideoWriter('output.avi', self.fourcc, 30, (640,480))
self.cap1 = cv2.VideoCapture(0, cv2.CAP_DSHOW)
self.cap1.set(3, 480)
self.cap1.set(4, 640)
self.cap1.set(5, 30)
while self.active:
ret1, image1 = self.cap1.read()
if ret1:
self.out1.write(image1)
self.msleep(10)
def stop(self):
self.out1.release()
class MainWindow(QWidget):
def __init__(self):
super().__init__()
self.resize(660, 520)
self.control_bt = QPushButton('START')
self.control_bt.clicked.connect(self.controlTimer)
self.image_label = QLabel()
self.saveTimer = QTimer()
self.th1 = Thread1(self)
self.th1.changePixmap.connect(self.setImage)
self.th1.start()
vlayout = QVBoxLayout(self)
vlayout.addWidget(self.image_label)
vlayout.addWidget(self.control_bt)
#QtCore.pyqtSlot(QImage)
def setImage(self, qImg1):
self.image_label.setPixmap(QPixmap.fromImage(qImg1))
def controlTimer(self):
if not self.saveTimer.isActive():
# write video
self.saveTimer.start()
self.th2 = Thread2(self)
self.th2.active = True
self.th2.start()
# update control_bt text
self.control_bt.setText("STOP")
else:
# stop writing
self.saveTimer.stop()
self.th2.active = False
self.th2.stop()
self.th2.terminate()
# update control_bt text
self.control_bt.setText("START")
if __name__ == '__main__':
app = QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
sys.exit(app.exec_())
you placed the .write() inside the run() of Thread class is right way.
like:
...
while self.cap.isOpened():
ret, self.frame = self.cap.read()
if ret:
self.frame = cv2.flip(self.frame, 1)
rgbimage = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgbimage.shape
bytesPerLine = ch * w
convertToQtFormat = QImage(
rgbimage.data, w, h, bytesPerLine, QImage.Format_RGB888)
p = convertToQtFormat.scaled(640, 480, Qt.KeepAspectRatio)
# put your writer() here, make sure your param is frame
# not converted to QtImage format
self.writer.write(rgbimage)
self.changePixmap.emit(p)
...
I am looking for a way to create a grid of graphs that can be dragged/dropped to rearrange the order. My first try was using QDockWidgets as they allow for drag/drop, however they were limited in a lot of other ways. Would it be possible to implement this function in a QGridLayout?
For now I have a QGridLayout with 3x3 matplotlib widgets.
Here is an example of the desired layout outcome.
Sample code:
import sys
from PyQt5 import QtWidgets
from matplotlib.figure import Figure
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
import random
from PyQt5.QtWidgets import QGridLayout, QVBoxLayout, QHBoxLayout, QScrollArea, QWidget, QDialog, QApplication, QFrame
class IndicSelectWindow(QDialog):
def __init__(self, parent=None):
super(IndicSelectWindow, self).__init__(parent=parent)
self.resize(1000, 800)
self.layout = QtWidgets.QHBoxLayout(self)
self.scrollArea = QScrollArea(self)
self.scrollArea.setWidgetResizable(True)
self.scrollAreaWidgetContents = QWidget()
self.gridLayout = QGridLayout(self.scrollAreaWidgetContents)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.layout.addWidget(self.scrollArea)
for i in range(3):
for j in range(3):
self.Frame = QFrame(self)
self.Frame.setStyleSheet("background-color: white;")
self.Frame.setFrameStyle(QFrame.Panel | QFrame.Raised)
self.Frame.setLineWidth(2)
self.layout = QHBoxLayout(self.Frame)
self.figure = Figure() # a figure to plot on
self.canvas = FigureCanvas(self.figure)
self.ax = self.figure.add_subplot(111) # create an axis
data = [random.random() for i in range(10)]
self.ax.plot(data, '*-') # plot data
self.canvas.draw() # refresh canvas
self.layout.addWidget(self.canvas)
Box = QVBoxLayout()
Box.addWidget(self.Frame)
self.gridLayout.addLayout(Box, i, j)
self.gridLayout.setColumnStretch(i % 3, 1)
self.gridLayout.setRowStretch(j, 1)
if __name__ == '__main__':
app = QApplication(sys.argv)
w = IndicSelectWindow()
w.show()
sys.exit(app.exec_())
Here is an implementation that will swap the positions of the items involved in a drag/drop. The 3 main steps are:
(1) Reimplement mousePressEvent to get the index of the LayoutItem based on mouse coordinates.
(2) Reimplement mouseMoveEvent to set up a QDrag of the FigureCanvas.
(3) Reimplement dropEvent to swap the target items in the layout.
Since the matplotlib widgets absorb mouse events you also need to reimplement eventFilter to detect them.
import sys, random
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from matplotlib.figure import Figure
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
class IndicSelectWindow(QDialog):
def __init__(self, parent=None):
super(IndicSelectWindow, self).__init__(parent=parent)
self.resize(1000, 800)
self.target = None
self.setAcceptDrops(True)
self.layout = QHBoxLayout(self)
self.scrollArea = QScrollArea(self)
self.scrollArea.setWidgetResizable(True)
self.scrollAreaWidgetContents = QWidget()
self.gridLayout = QGridLayout(self.scrollAreaWidgetContents)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.layout.addWidget(self.scrollArea)
for i in range(3):
for j in range(3):
self.Frame = QFrame(self)
self.Frame.setStyleSheet("background-color: white;")
self.Frame.setFrameStyle(QFrame.Panel | QFrame.Raised)
self.Frame.setLineWidth(2)
self.layout = QHBoxLayout(self.Frame)
self.figure = Figure() # a figure to plot on
self.canvas = FigureCanvas(self.figure)
self.ax = self.figure.add_subplot(111) # create an axis
data = [random.random() for i in range(10)]
self.ax.plot(data, '*-') # plot data
self.canvas.draw() # refresh canvas
self.canvas.installEventFilter(self)
self.layout.addWidget(self.canvas)
Box = QVBoxLayout()
Box.addWidget(self.Frame)
self.gridLayout.addLayout(Box, i, j)
self.gridLayout.setColumnStretch(i % 3, 1)
self.gridLayout.setRowStretch(j, 1)
def eventFilter(self, watched, event):
if event.type() == QEvent.MouseButtonPress:
self.mousePressEvent(event)
elif event.type() == QEvent.MouseMove:
self.mouseMoveEvent(event)
elif event.type() == QEvent.MouseButtonRelease:
self.mouseReleaseEvent(event)
return super().eventFilter(watched, event)
def get_index(self, pos):
for i in range(self.gridLayout.count()):
if self.gridLayout.itemAt(i).geometry().contains(pos) and i != self.target:
return i
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.target = self.get_index(event.windowPos().toPoint())
else:
self.target = None
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton and self.target is not None:
drag = QDrag(self.gridLayout.itemAt(self.target))
pix = self.gridLayout.itemAt(self.target).itemAt(0).widget().grab()
mimedata = QMimeData()
mimedata.setImageData(pix)
drag.setMimeData(mimedata)
drag.setPixmap(pix)
drag.setHotSpot(event.pos())
drag.exec_()
def mouseReleaseEvent(self, event):
self.target = None
def dragEnterEvent(self, event):
if event.mimeData().hasImage():
event.accept()
else:
event.ignore()
def dropEvent(self, event):
if not event.source().geometry().contains(event.pos()):
source = self.get_index(event.pos())
if source is None:
return
i, j = max(self.target, source), min(self.target, source)
p1, p2 = self.gridLayout.getItemPosition(i), self.gridLayout.getItemPosition(j)
self.gridLayout.addItem(self.gridLayout.takeAt(i), *p2)
self.gridLayout.addItem(self.gridLayout.takeAt(j), *p1)
if __name__ == '__main__':
app = QApplication(sys.argv)
w = IndicSelectWindow()
w.show()
sys.exit(app.exec_())
I am trying to add new lines to an existing and open Plot.
I wrote a watchdog watching a folder with measurement data. Every few secs there will be a new data file. The Application I try to generate should read the file when triggered by the watchdog and add the data to the plot.
Dynamic plots using QTimer and stuff is easy when updating existing data, but I don't get a hook for new lines.
Also, do I have to use multithreading when I want to run a script while having a plot on _exec()?
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pq
import sys
import numpy as np
import time
class Plot2d(object):
def __init__(self):
self.traces = dict()
self.num = 0
pq.setConfigOptions(antialias=True)
self.app = QtGui.QApplication(sys.argv)
self.win = pq.GraphicsWindow(title='examples')
self.win.resize(1000, 600)
self.win.setWindowTitle('Windowtitle')
self.canvas = self.win.addPlot(title='Plot')
def starter(self):
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()
def trace(self, name, dataset_x, dataset_y):
if name in self.traces:
self.traces[name].setData(dataset_x, dataset_y)
else:
self.traces[name] = self.canvas.plot(pen='y')
def update(self, i):
x_data = np.arange(0, 3.0, 0.01)
y_data = x_data*i
self.trace(str(i), x_data, y_data)
self.trace(str(i), x_data, y_data)
if __name__ == '__main__':
p = Plot2d()
p.update(1)
p.starter()
time.sleep(1)
p.update(2)
This is what I tried. The update function should be called by the watchdog when new data is available in the dir.
import time as time
from watchdog.observers import Observer
from watchdog.events import PatternMatchingEventHandler
if __name__ == "__main__":
patterns = "*"
ignore_patterns = ""
ignore_directories = False
case_sensitive = True
go_recursively = False
my_event_handler = PatternMatchingEventHandler(patterns, ignore_patterns, ignore_directories, case_sensitive)
def on_created(event):
print(f" {event.src_path} has been created!") #this function should call the plot update
my_event_handler.on_created = on_created
path = (r'C:\Users\...') #path from GUI at some point
my_observer = Observer()
my_observer.schedule(my_event_handler, path, recursive=go_recursively)
my_observer.start()
try:
while True:
time.sleep(1)
except KeyboardInterrupt:
my_observer.stop()
my_observer.join()
The exec_() method is blocking, so starter() will be too, and will be unlocked when the window is closed, which implies that all the code after starter will only be executed after closing the window. On the other hand you should not use time.sleep in the GUI thread as it blocks the execution of the GUI event loop.
Depending on the technology used, ways of updating elements are offered, in the case of Qt the appropriate way is to use signals so that all the logic of the watchdog will be encapsulated in a QObject that will transmit the information to the GUI through a signal, Then the GUI takes that information to plot.
import sys
from watchdog.observers import Observer
from watchdog.events import PatternMatchingEventHandler
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pq
import numpy as np
class QObserver(QtCore.QObject):
dataChanged = QtCore.pyqtSignal(object)
def __init__(self, parent=None):
super(QObserver, self).__init__(parent)
patterns = "*"
ignore_patterns = ""
ignore_directories = False
case_sensitive = True
go_recursively = False
path = r"C:\Users\..." # path from GUI at some point
event_handler = PatternMatchingEventHandler(
patterns, ignore_patterns, ignore_directories, case_sensitive
)
event_handler.on_created = self.on_created
self.observer = Observer()
self.observer.schedule(event_handler, path, recursive=go_recursively)
self.observer.start()
def on_created(self, event):
print(
f" {event.src_path} has been created!"
) # this function should call the plot update
self.dataChanged.emit(np.random.randint(1, 5))
class Plot2d(QtCore.QObject):
def __init__(self, parent=None):
super().__init__(parent)
self.traces = dict()
self.num = 0
pq.setConfigOptions(antialias=True)
self.app = QtGui.QApplication(sys.argv)
self.win = pq.GraphicsWindow(title="examples")
self.win.resize(1000, 600)
self.win.setWindowTitle("Windowtitle")
self.canvas = self.win.addPlot(title="Plot")
def starter(self):
if (sys.flags.interactive != 1) or not hasattr(QtCore, "PYQT_VERSION"):
QtGui.QApplication.instance().exec_()
def trace(self, name, dataset_x, dataset_y):
if name in self.traces:
self.traces[name].setData(dataset_x, dataset_y)
else:
self.traces[name] = self.canvas.plot(pen="y")
#QtCore.pyqtSlot(object)
def update(self, i):
x_data = np.arange(0, 3.0, 0.01)
y_data = x_data * i
self.trace(str(i), x_data, y_data)
self.trace(str(i), x_data, y_data)
if __name__ == "__main__":
p = Plot2d()
qobserver = QObserver()
qobserver.dataChanged.connect(p.update)
p.starter()
I have an application that displays a GUI using GTK3 for python 3. It has a plot rendered by matplotlib. When the plot is included in the code the UI gets zoomed in (see pictures). This happens on a mac with retina display. On Ubuntu it works perfectly. Here is the code that draws the GUI:
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from matplotlib.figure import Figure
import matplotlib.cm as cm
from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas
from threading import Thread
import os
from instruction import *
from instructionwriter import *
class UI:
def __init__(self):
self.instructions = None
self.builder = Gtk.Builder()
self.builder.add_from_file(os.path.dirname(os.path.realpath(__file__)) + os.path.sep + "UI.glade")
self.builder.connect_signals(self)
scale = self.builder.get_object("scale")
scale.set_label("Välj skalfaktor")
scale.set_relief(Gtk.ReliefStyle.NORMAL)
# This part has to be commented out to make the GUI display correctly but is needed for the application.
#self.fig = Figure()
#self.fig.suptitle("Förhandsvisning")
#self.ax = self.fig.add_subplot(1, 1, 1)
#self.canvas = FigureCanvas(self.fig)
#self.builder.get_object("scrolledwindow1").add_with_viewport(self.canvas)
#self._preview()
self.buttons = [
self.builder.get_object("filechooser"),
self.builder.get_object("centerbutton"),
self.builder.get_object("scale"),
self.builder.get_object("autobutton"),
self.builder.get_object("preview"),
self.builder.get_object("save")
]
self.lastScale = 0.5
statusBar = self.builder.get_object("statusBar")
self.context_id = statusBar.get_context_id("id")
def show(self):
self.builder.get_object("window1").show_all()
def on_exit(self, *args):
Gtk.main_quit()
def on_file_select(self, *args):
filename = self.builder.get_object("filechooser").get_filename()
self.builder.get_object("snurrare").start()
self._disable_ui()
Thread(target=self._load, args=(filename,)).start()
def on_preview(self, *args):
self._preview()
self._display_time()
def on_center(self, *args):
self.instructions.center()
def on_fit(self, *args):
self.instructions.fit()
def on_save(self, *args):
dialog = Gtk.FileChooserDialog("Välj mapp", self.builder.get_object("window1"),
Gtk.FileChooserAction.SELECT_FOLDER,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
"Välj", Gtk.ResponseType.OK))
dialog.set_default_size(800, 400)
response = dialog.run()
if response == Gtk.ResponseType.OK:
self.builder.get_object("snurrare").start()
self._disable_ui()
Thread(target=self._save, args=(dialog.get_filename(),)).start()
dialog.destroy()
def _load(self, filename):
self.lastScale = 0.5
self.builder.get_object("scale").set_value(0.5)
ext = os.path.splitext(filename)[1]
if ext == ".svg":
self.instructions = InstructionList.from_svg(filename)
elif ext == ".py":
self.instructions = InstructionList.from_code(filename)
self.builder.get_object("snurrare").stop()
self._display_time()
self._enable_ui()
def _save(self, folder):
writer = InstructionWriter(self.instructions, 0)
writer.write(folder)
self.builder.get_object("snurrare").stop()
self._enable_ui()
def _disable_ui(self):
for button in self.buttons:
button.set_sensitive(False)
def _enable_ui(self):
for button in self.buttons:
button.set_sensitive(True)
def _preview(self):
if not self.instructions is None:
if self.builder.get_object("scale").get_value() != self.lastScale:
self.lastScale = self.builder.get_object("scale").get_value()
self.instructions.scale(2*self.lastScale)
self.ax.clear()
x = []
y = []
for inst in self.instructions.instructions:
if inst.type == Instruction.MOVE:
self.ax.plot(x, y, 'b')
x = [inst.dest.real]
y = [inst.dest.imag]
elif inst.type == Instruction.LINE:
x.append(inst.dest.real)
y.append(inst.dest.imag)
self.ax.plot(x, y, 'b')
self.ax.plot([-XLIM, XLIM, XLIM, -XLIM, -XLIM], [-YLIM, -YLIM, YLIM, YLIM, -YLIM], 'r')
self.ax.plot([-585, 585, 585, -585, -585], [-413.5, -413.5, 413.5, 413.5, -413.5], 'g:')
self.ax.axis("equal")
self.fig.canvas.draw()
def _display_time(self):
t = self.instructions.time()
self.builder.get_object("statusBar").push(self.context_id, "Uppskattad tid: %dmin %ds" % (t//60, t%60))
ui = UI()
ui.show()
Gtk.main()
GUI when plot is included
GUI when plot is excluded