So I'm trying to send a simulated return key to QTermWidget in my program. I have working version of this in both Python /Qt4 and C++/Qt4. At this point I really do not care if it is written in either language now that I have a decent grasp on C++ syntax. That being said an answer for either language would be a godsend.
So far I've tried
QTest.KeyClick(self.Terminal, Qt.KeyReturn, Qt.NoModifier) // syntax is python here
and
key_press = QKeyEvent(QEvent.KeyPress, Qt.Key_Return, Qt.NoModifier)
self.Terminal.keyPressEvent(key_press)
key_release = QKeyEvent(QEvent.KeyRelease, Qt.Key_Return, Qt.NoModifier)
self.Terminal.keyPressEvent(key_release)
and a few other that I can't fully remember now.
Thank you for any help.
Did you try this in C++?
QKeyEvent *ev = new QKeyEvent( QEvent::KeyPress, Qt::Key_Return, Qt::NoModifier );
myApp->postEvent( receivingWidget, ev );
This works for me, should be working with other widgets, too.
import sys
from PyQt4 import QtCore, QtGui, Qt
from ChildWindow import ChildWindow
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
QtCore.QTimer.singleShot(500, self.showChildWindow)
self.textEdit = QtGui.QTextEdit(self)
self.textEdit.resize(100, 100)
def showChildWindow(self):
QtGui.QApplication.sendEvent(self.textEdit, QtGui.QKeyEvent(QtGui.QKeyEvent.KeyPress, QtCore.Qt.Key_A, QtCore.Qt.NoModifier, "hello"))
QtGui.QApplication.sendEvent(self.textEdit, QtGui.QKeyEvent(QtGui.QKeyEvent.KeyPress, QtCore.Qt.Key_Return, QtCore.Qt.NoModifier))
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = MainWindow()
myapp.show()
sys.exit(app.exec_())
Related
I'm having problems getting any video player to work with my PyQt4 setup (having tried both phonon and QMovie). The below QMovie script is from an example where several users commented it as functional. For me, it runs but only opens a window (with Loading... centered) that never actually plays the .gif (I've tried several working .gif files from numerous examples online, so the file is not the problem). I've commented out the results from running the three debugging steps as well.
What can I do next?
import sys
import os
import sip
sip.setapi('QVariant', 2)
from PyQt4 import QtGui, QtCore
class BusyLabel(QtGui.QWidget):
def __init__(self, gif, parent = None, text = None):
QtGui.QWidget.__init__(self, parent)
self.hlayout = QtGui.QHBoxLayout(self)
self.hlayout.setSpacing(0)
self.hlayout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.hlayout)
# Movie
self.movieLabel = QtGui.QLabel(self)
self.movieLabel.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
self.movieLabel.setAlignment(QtCore.Qt.AlignCenter)
self.movie = QtGui.QMovie(gif, QtCore.QByteArray(), self)
self.movie.setScaledSize(QtCore.QSize(20,20))
self.movie.setCacheMode(QtGui.QMovie.CacheAll)
self.movie.setSpeed(100)
print self.movie.isValid() #output = False
print self.movie.supportedFormats() #output = []
self.movieLabel.setMovie(self.movie)
self.hlayout.addWidget(self.movieLabel)
# Label
self.label = QtGui.QLabel(text)
self.hlayout.addWidget(self.label)
self.movie.start()
def setText(self, text):
self.label.setText(text)
def start(self):
self.show()
self.movie.start()
def stop(self):
self.hide()
self.movie.stop()
if __name__ == "__main__":
gif = 'test1.gif'
print os.path.exists(gif) #output = True
app = QtGui.QApplication(sys.argv)
player = BusyLabel(gif)
player.setText('Loading...')
player.start()
player.show()
sys.exit(app.exec_())
output:
True
False
[]
(For those curious about my other attempts, running a popular Phonon script gave the error: phonon backend plugin could not be loaded... I'll take anything at this point)
I'm providing here complete, working code that I've written to answer this (my) problem. All you need is PyQt4 and Matplotlib, I hope this might help someone else facing similar troubles down the road:
https://github.com/evanseitz/PyQt4_VideoPlayer
Please help me !
I'm creating GUI by Python can run on the 3Ds Max, i heard someone said i have to use Pyside to make it. And everthing be fine until now.
This is my code :
import sys
from PySide import QtGui
from PySide.QtGui import *
from PySide.QtCore import *
class Window(QDialog):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.setMinimumHeight(660)
self.setMinimumWidth(700)
self.setMaximumHeight(660)
self.setMaximumWidth(700)
grid = QtGui.QGridLayout()
grid.addWidget(self.First(), 0,0,2,0)
self.setLayout(grid)
self.setWindowTitle("Library")
self.resize(700, 660)
def First(self):
groupBox = QtGui.QFrame()
groupBox.setMaximumWidth(230)
groupBox.setMaximumHeight(700)
lbRenderer = QtGui.QLabel("Renderer :",self)
lbFolders = QtGui.QLabel("Folders :",self)
cbRenderer = QtGui.QComboBox(self)
cbRenderer.addItem("Vray")
cbRenderer.addItem("Octane")
lvFolders = QtGui.QListView(self)
lvFolders.setMaximumWidth(220)
lvFolders.setMaximumHeight(500)
btnAddNewObject = QtGui.QPushButton('Add New Objects',self)
btnNewSet = QtGui.QPushButton('New Set',self)
vbox = QtGui.QGridLayout()
vbox.addWidget(lbRenderer,0,0)
vbox.addWidget(cbRenderer,0,1,1,3)
vbox.addWidget(lbFolders,2,0,1,4)
vbox.addWidget(lvFolders,3,0,1,4)
vbox.setColumnStretch(1, 1)
vbox.addWidget(btnAddNewObject,4,0,1,2)
vbox.addWidget(btnNewSet,4,3)
groupBox.setLayout(vbox)
return groupBox
app = QApplication.instance()
if app is None:
app = QApplication(sys.argv)
clock = Window()
clock.show()
app.exec_()
I try another code same like my code , it run fine by "MAXScript Listener". But I dont know why when i try to run this, it dont appear anything(my GUI, or Alert is my code is not good).
First of all - you are initializing your script wrong, you call the 'initialize' function which returns #Success (meaning python initialized properly),
however you then just send in a string (which is the path to the file) and this does nothing.
What you have to use is:
python.ExecuteFile "C:\\Program Files\\Autodesk\\3ds Max 2015\\scripts\\Python\\yourPythonScript.py"
in maxscript listener\editor.
Autodesk documentation says:
Autodesk 3ds Max ships with a pre-built version of PySide 1.2
compatible with Python 2.7.3. This version includes the following
sub-set of modules:
QtCore
QtGui
QtNetwork
QtOpenGL
QtSql
QtSvg
QtTest
QtWebKit
QtXml
They have provided a simple sample script that you can run, save this in a python file, then execute it properly with the command mentioned in the beginning.
The code is here:
from PySide import QtGui
import MaxPlus
class _GCProtector(object):
widgets = []
def make_cylinder():
obj = MaxPlus.Factory.CreateGeomObject(MaxPlus.ClassIds.Cylinder)
obj.ParameterBlock.Radius.Value = 10.0
obj.ParameterBlock.Height.Value = 30.0
node = MaxPlus.Factory.CreateNode(obj)
time = MaxPlus.Core.GetCurrentTime()
MaxPlus.ViewportManager.RedrawViews(time)
return
app = QtGui.QApplication.instance()
if not app:
app = QtGui.QApplication([])
def main():
MaxPlus.FileManager.Reset(True)
w = QtGui.QWidget()
w.resize(250, 100)
w.setWindowTitle('Window')
_GCProtector.widgets.append(w)
w.show()
main_layout = QtGui.QVBoxLayout()
label = QtGui.QLabel("Click button to create a cylinder in the scene")
main_layout.addWidget(label)
cylinder_btn = QtGui.QPushButton("Cylinder")
main_layout.addWidget(cylinder_btn)
w.setLayout(main_layout)
cylinder_btn.clicked.connect(make_cylinder)
if __name__ == '__main__':
main()
They also mention this which is important:
Normally one creates a PySide application object in a script using
QtGui.QApplication(). However, in 3ds Max, there is already a PySide
application running, so you get a handle for that object like this:
QtGui.QApplication.instance()
Use that as a start script, and port your GUI items into that and it should get you up and running.
I tried to fix your code but anything happen, i dont know why.
First thing , i opened your code and run it in Pycharm but it can not run. But it totally run in Maxscript Listener, could you explain to me ?
Second i tried to fix your code. It's all the same, i can run it on Maxscript, but the content and function inside is disappear.
This is my code
from PySide import QtGui
import MaxPlus
class _GCProtector(object):
widgets = []
app = QtGui.QApplication.instance()
if not app:
app = QtGui.QApplication([])
def main():
MaxPlus.FileManager.Reset(True)
w = QtGui.QWidget()
w.setWindowTitle('Window')
_GCProtector.widgets.append(w)
w.show()
main_layout = QtGui.QGridLayout()
main_layout.addWidget(First(),0,0)
main_layout.addWidget(Second(),0,1)
w.setLayout(main_layout)
def First():
groupBox = QtGui.QFrame()
lbRenderer = QtGui.QLabel("Renderer :",self)
vbox = QtGui.QGridLayout()
vbox.addWidget(lbRenderer,0,0)
groupBox.setLayout(vbox)
return groupBox
def Second():
groupBox = QtGui.QFrame()
lbRenderer = QtGui.QLabel("Renderer :",self)
vbox = QtGui.QGridLayout()
vbox.addWidget(lbRenderer,0,0)
groupBox.setLayout(vbox)
return groupBox
if __name__ == '__main__':
main()
And this is the alert from Maxcript
I'm using Python 2.7 with PyQt 4.0.
I'm trying to make a QGraphicsRectItem move 10 px up in a animation. I have read the documentation and several tutorials but I can't get it to work. What is wrong with my code?
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import random
class TestWidget(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.scene = QGraphicsScene()
self.view = QGraphicsView(self.scene)
self.button1 = QPushButton("Do test")
self.button2 = QPushButton("Move forward 10")
layout = QVBoxLayout()
buttonLayout = QHBoxLayout()
buttonLayout.addWidget(self.button1)
buttonLayout.addWidget(self.button2)
buttonLayout.addStretch()
layout.addWidget(self.view)
layout.addLayout(buttonLayout)
self.setLayout(layout)
self.button1.clicked.connect(self.do_test)
self.button2.clicked.connect(self.move_forward)
def do_test(self):
self.turtle = self.scene.addRect(0,0,10,20)
def move_forward(self):
animation = QGraphicsItemAnimation()
timeline = QTimeLine(1000)
timeline.setFrameRange(0,100)
animation.setTimeLine(timeline)
animation.setItem(self.turtle)
animation.setPosAt(1.0, QPointF(self.turtle.x(),self.turtle.y()+10))
timeline.start()
Thanks for the help!
The reason why your example doesn't work, is that you are not keeping a reference to the QGraphicsItemAnimation created in the move_forward method, and so it gets garbage-collected before it has a chance to do anything.
I would suggest you create the animation in __init__ so that you can access it later as an instance attribute:
def __init__(self, parent=None):
...
self.animation = QGraphicsItemAnimation()
def move_forward(self):
timeline = QTimeLine(1000)
timeline.setFrameRange(0, 100)
self.animation.setTimeLine(timeline)
self.animation.setItem(self.turtle)
self.animation.setPosAt(
1.0, QPointF(self.turtle.x(), self.turtle.y() + 10))
timeline.start()
try this small change (in function move_forward).
replace
animation = QGraphicsItemAnimation()
with
animation = QGraphicsItemAnimation(self)
that changes the behaviour for me.
I am new to Aptana, and have searched the net to see how it handles gui development.
I have tried the following code. It shows no bugs in the console. However, it will not give me the Tk() window named myGui.
from Tkinter import *
import ttk
def main():
myGui = Tk()
myGui.title("My Gui New")
myGui.geometry('400x200+200+200')
l = Label(myGui, text="Help")
l.pack()
if __name__ == "__main__":
main()
Any pointers. I able to get my functions to run in the console, but this Gui development is not working out so well.
The-IT is right, you do want to add myGui.mainloop() to the end of main.
Normally when I'm working in Tkinter I try to move some of the information in your function main into the if... clause. This makes larger, more complex interfaces much easier to handle.
A good start is to use a class:
from Tkinter import *
from ttk import *
class App(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.pack()
self.create_widgets()
def create_widgets(self):
self.l = Label(self, text='Help')
self.l.pack()
if __name__ == '__main__':
root = Tk()
app = App(root)
root.mainloop()
The benefits of this is that you can easily introduce toplevels, add additonal widgets (in an organized fashion) and have clearer code. You can also use the classes to make templates for other widgets; in this case, you are building a special frame class and giving it whatever attributes you want. The same can be done for buttons, entries, and other frames. I'm not familiar with aptana3, but this should work with no problem. Just make sure your indentation is consistent.
I am developing PyQt software for my lab. In this software, I am loading different kind of RAW and analyzed data from a mySQL database (usually in arrays).
I would like to integrate an Iython console in a Widget, so that I could interact easily with these data.
I had some difficulties with Ipython 0.13 to do this.
Here is what I already have (The whole code is very long, so I just show the part containing the widget, the Ipython console and the corresponding import line, if you need more, just tell me):
##I load everything useful to my application, including the following line
from IPython.frontend.qt.console.qtconsoleapp import IPythonQtConsoleApp
##then is my whole software
##here is a class containing the Graphical User Interface elements. A button call the following function. self.Shell_Widget is the widget containing the Ipython console, self.MainWindow is the application mainwindow
def EmbeddedIpython(self):
"""
This function should launch an Ipython console
"""
self.Shell_Widget = QtGui.QDockWidget(self.MainWindow) #Widget creation
self.MainWindow.addDockWidget(4,self.Shell_Widget)
self.Shell_Widget.setMinimumSize(400,420)
console = IPythonQtConsoleApp() #Console Creation
console.initialize()
console.start()
self.Shell_Widget.show()
So, as wanted, an Ipython console is launched, and seems to work, but I can not access the whole application variables ,arrays etc... I think the Ipython console is launched independently from my software, but here is my limit in programming...
Does someone know how to launch Ipython within my application? Maybe a missing parameter, or a different way to integrate Ipython.
for information, this doesn't work:
Embedding IPython Qt console in a PyQt application
Thank you for your help!!
The mentioned link seems to be working flawless here:
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import atexit
from IPython.zmq.ipkernel import IPKernelApp
from IPython.lib.kernel import find_connection_file
from IPython.frontend.qt.kernelmanager import QtKernelManager
from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget
from IPython.utils.traitlets import TraitError
from PyQt4 import QtGui, QtCore
def event_loop(kernel):
kernel.timer = QtCore.QTimer()
kernel.timer.timeout.connect(kernel.do_one_iteration)
kernel.timer.start(1000*kernel._poll_interval)
def default_kernel_app():
app = IPKernelApp.instance()
app.initialize(['python', '--pylab=qt'])
app.kernel.eventloop = event_loop
return app
def default_manager(kernel):
connection_file = find_connection_file(kernel.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
atexit.register(manager.cleanup_connection_file)
return manager
def console_widget(manager):
try: # Ipython v0.13
widget = RichIPythonWidget(gui_completion='droplist')
except TraitError: # IPython v0.12
widget = RichIPythonWidget(gui_completion=True)
widget.kernel_manager = manager
return widget
def terminal_widget(**kwargs):
kernel_app = default_kernel_app()
manager = default_manager(kernel_app)
widget = console_widget(manager)
#update namespace
kernel_app.shell.user_ns.update(kwargs)
kernel_app.start()
return widget
class mainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(mainWindow, self).__init__(parent)
self.console = terminal_widget(testing=123)
print "\nAn Embeded Ipython Console!"
self.textEdit = QtGui.QTextEdit()
self.dockShell = QtGui.QDockWidget(self)
self.dockShell.setWidget(self.textEdit)
self.addDockWidget(4, self.dockShell)
self.setCentralWidget(self.console)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
main = mainWindow()
main.show()
sys.exit(app.exec_())