I have the following in my Python file:
import sys
from PyQt4.QtCore import QDateTime, QObject, QUrl, pyqtSignal
from PyQt4.QtGui import QApplication
from PyQt4.QtDeclarative import QDeclarativeView
#this class will emit success if photo is added to group
class updateGroup(QObject):
now = pyqtSignal(int)
def emit_now(self):
number = 1
self.now.emit(number)
app = QApplication(sys.argv)
update = updateGroup()
view = QDeclarativeView()
view.setSource(QUrl('flickrviews.qml'))
view.setResizeMode(QDeclarativeView.SizeRootObjectToView)
rootObject = view.rootObject()
rootObject.updateRequired.connect(update.emit_now) #sends signal
update.now.connect(rootObject.updateColor) #tells it which function in qml
gets that signal
view.setGeometry(100, 100, 400, 240)
view.show()
app.exec_()
and the relevant parts in my QML file are:
signal updateRequired;
function updateColor(number)
{
if(number==1)
{
addtogroup.buttonColor="blue"
}
}
and later in the file:
Button{
id: addtogroup
width: 200
bLabel: "Add to Next Group"
//onButtonClick:
plasmoid.runCommand("/home/ermesa/bin/qml/plasmoids/flickrviews2/contents/ui/flickrhelpers/addtogroup.py",
[photoID,nextphotogroup])
onButtonClick: updateRequired()
}
Just curious about one thing:
1) With this framework I can get information from the python program to
affect the QML (and change the button to a blue colour). How do I get
information to the python program? In other words, if I have a python
function that's function(int) -> how do I provide the int argument for the
python FROM the QML?
It's a little hard for me to figure out because this stuff is all indirect
- in the QML the signal is referred to as if it were a function. And the
function gets the data from the signal, but it doesn't seem to make sense
how that happens because there's no real link to it. I kinda understand
what I'm doing, but not enough to figure out how to get the into to python.
Thanks,
--
Eric Mesa
http://about.me/ericmesa
http://www.ericsbinaryworld.com
_______________________________________________
Plasma-devel mailing list
Plasma-devel@kde.org
https://mail.kde.org/mailman/listinfo/plasma-devel
