Pyqt qtimer and qthread examples

#-*-Coding: UTF-8 -*-

# Python: 2.x

_ Author _ = 'admin'

 

From pyqt4.qtgui import *

From pyqt4.qt import *

From pyqt4.qtcore import *

From start import ui_form

Import sys

Class Example (qdialog, ui_form ):

Def _ init _ (self, parent = none ):

Super (example, self). _ init _ (parent)

Self. setupui (Self)

 

# Border Style

Self. timenum. setframestyle (qframe. styledpanel |

Qframe. Plain)

Self. Time = qtimers ()

Self. Start. clicked. Connect (self. start1)

Self. Stop. clicked. Connect (self. Stop1)

Self. Connect (self. Time, signal ("updatetime ()")

, Self. updatetime)

Self. setwindowflags (QT. windowminimizebuttonhint) # Do not change the window size.

Def updatetime (Self ):

Self. timenum. settext (U' time is {0} '. Format (qstring. Number (self. Num )))

Self. Num + = 1

Def Stop1 (Self ):

Self. Time. Stop1 ()

Self. Stop. setenabled (false)

Self. Start. setenabled (true)

Self. timenum. settext (U' enter the time 0 second ')

Def start1 (Self ):

Self. num = 0

Self. Start. setenabled (false)

Self. Stop. setenabled (true)

Self. Time. Start ()

From time import *

Class qtimers (qthread ):

Def _ init _ (self, parent = none ):

Super (qtimers, self). _ init _ (parent)

Self. stoped = false

Self. mutex = qmutex () # provides sequential access between threads

Def run (Self ):

With qmutexlocker (self. mutex): # qmutexlocker (qmutex * mutex)

Self. stoped = false

While true:

If self. stoped:

Return

Self. emit (signal ('updatetime () ') # Send signal

Sleep (1)

Def Stop1 (Self ):

With qmutexlocker (self. mutex ):

Self. stoped = true

Def isstoped (Self ):

With qmutexlocker (self. mutex ):

Return self. stoped

 

 

 

APP = qapplication (SYS. argv)

Qapplication. setquitonlastwindowclosed (false)

X = example ()

X. Show ()

Sys.exit(app.exe C _())

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