PySide/sv: Difference between revisions

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<H2>PySide</H2>
{{Note|PySide|Recently, FreeCAD has switched internally to use [http://qt-project.org/wiki/PySide PySide] instead of PyQt. That change was mainly done because of the licenses, PySide having an LGPL license which is more compatible with FreeeCAD. Other than that, PySide works exactly the same way as PyQt, and in FreeCAD you can usually use any of them, as you prefer. If you choose to use PySide, just replace all "PyQt" in the example code below with "PySide". See [http://qt-project.org/wiki/Differences_Between_PySide_and_PyQt Differences Between PySide and PyQt]}}


[http://en.wikipedia.org/wiki/PySide PySide] is a Python binding of the cross-platform GUI toolkit Qt. FreeCAD uses PySide for all GUI (Graphic User Intercase) purposes. PySide evolved from the PyQt package which was previously used by FreeCAD for it's GUI. See [http://qt-project.org/wiki/Differences_Between_PySide_and_PyQt Differences Between PySide and PyQt] for more information on the differences.
[http://en.wikipedia.org/wiki/PyQt PyQt] är en python modul som tillåter python applikationer att skapa, komma åt och ändra [http://sv.wikipedia.org/wiki/Qt Qt] applikationer. Du kan använda den för till exempel att skapa dina egna Qt program i python, eller till att komma åt och ändra gränssnittet i en körande qt applikation, som FreeCAD.


Users of FreeCAD often achieve everything using the built-in interface. But for users who want to customise their operations then the Python interface exists which is documented in the [[Python_scripting_tutorial|Python Scripting Tutorial]]. The Python interface for FreeCAD had great flexibility and power. For it's user interaction Python with FreeCAD uses PySide, which is what is documented on this page.
Genom att använda PyQt modulen inifrån FreeCAD, så har du därför full kontroll över dess gränssnitt. Du kan till exempel:


Python offers the 'print' statement which gives the code:
* Lägga till dina egna paneler, widgetar och verktygslådor
* Lägga till eller gömma element i existerande paneler
* Ändra, omdirigera eller lägga till anslutningar mellan alla dessa element

PyQt har en extensiv [http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/classes.html API dokumentation], och det finns många övningar på nätet för att lära dig hur det fungerar.

Om du vill arbeta på FreeCAD gränssnittet, så är den första saken du ska göra att skapa en referens till FreeCAD's huvudfönster:
{{Code|code=
{{Code|code=
print 'Hello World'
import sys
from PySide import QtGui ,QtCore
app = QtGui.qApp
mw = FreeCADGui.getMainWindow()
}}
}}
With Python's print statement you have only limited control of the appearance and behaviour. PySide supplies the missing control and also handles environments (such as the FreeCAD macro file environment) where the built-in facilities of Python are not enough.
Sedan så kan du till exempel lista igenom gränssnittets alla widgetar:
{{Code|code=
for child in mw.children():
print 'widget name = ', child.objectName(), ', widget type = ', child
}}
Widgetarna i ett Qt gränssnitt är vanligtvis nästlade i "behållar" widgetar, så vårt huvudfönsters barn kan själva innehålla andra barn. Beroende på widgettyp, så finns det många saker du kan göra. Kontrollera API dokumentationen för att se vad som är möjligt.


PySide's abilities range from:
Att lägga till en ny widget, till exempel en dockWidget (som kan placeras i en av FreeCAD's sidopaneler) är lätt:
{{Code|code=
myWidget = QtGui.QDockWidget()
mw.addDockWidget(QtCore.Qt.RightDockWidgetArea,myWidget)
}}
Du kan sedan lägga till saker direkt i din widget:
{{Code|code=
myWidget.setObjectName("my Nice New Widget")
myWidget.resize(QtCore.QSize(300,100)) # sets size of the widget
label = QtGui.QLabel("Hello World", myWidget) # creates a label
label.setGeometry(QtCore.QRect(2,50,200,24)) # sets its size
label.setObjectName("myLabel") # sets its name, so it can be found by name
}}
Men en föredragen metod är att skapa ett UI objekt som gör alla inställningar av din widget direkt. Den stora fördelen är att ett sådant UI objekt kan [[Dialog creation/sv|skapas grafiskt]] med Qt Designer programmet. Ett typiskt objekt som genererats av Qt Designer är som detta:
{{Code|code=
class myWidget_Ui(object):
def setupUi(self, myWidget):
myWidget.setObjectName("my Nice New Widget")
myWidget.resize(QtCore.QSize(300,100).expandedTo(myWidget.minimumSizeHint())) # sets size of the widget


[[File:PySideScreenSnapshot1.jpg]]
self.label = QtGui.QLabel(myWidget) # creates a label
self.label.setGeometry(QtCore.QRect(50,50,200,24)) # sets its size
self.label.setObjectName("label") # sets its name, so it can be found by name


to:
def retranslateUi(self, draftToolbar): # built-in QT function that manages translations of widgets

myWidget.setWindowTitle(QtGui.QApplication.translate("myWidget", "My Widget", None, QtGui.QApplication.UnicodeUTF8))
[[File:PySideScreenSnapshot2.jpg]]
self.label.setText(QtGui.QApplication.translate("myWidget", "Welcome to my new widget!", None, QtGui.QApplication.UnicodeUTF8))

}}
PySide is described in the following 3 pages which should follow on one from each other:
För att använda den, så behöver du bara tillämpa den i din nyss skapade widget som så här:

{{Code|code=
* [[PySide_Beginner_Examples|Beginner PySide Examples]] (Hello World, announcements, enter text, enter number)
app = QtGui.qApp
* [[PySide_Medium_Examples|Medium PySide Examples]] (window sizing, hiding widgets, popup menus, mouse position, mouse events)
FCmw = app.activeWindow()
* [[PySide_Advanced_Examples|Advanced PySide Examples]] (widgets etc.)
myNewFreeCADWidget = QtGui.QDockWidget() # create a new dckwidget

myNewFreeCADWidget.ui = myWidget_Ui() # load the Ui script
They divide the subject matter into 3 parts, differentiated by level of exposure to PySide, Python and the FreeCAD internals. The first page has overview and background material giving a description of PySide and how it is put together while the second and third pages are mostly code examples at different levels.
myNewFreeCADWidget.ui.setupUi(myNewFreeCADWidget) # setup the ui

FCmw.addDockWidget(QtCore.Qt.RightDockWidgetArea,myNewFreeCADWidget) # add the widget to the main window
The intention is that the associated pages will provide simple Python code to run PySide so that the user working on a problem can easily copy the code, paste it into their own work, adapt it as necessary and return to their problem solving with FreeCAD. Hopefully they don't have to go chasing off across the internet looking for answers to PySide questions. At the same time this page is not intended to replace the various comprehensive PySide tutorials and reference sites available on the web.
}}
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{{docnav|Pivy|Scripted objects}}
[[Category:Poweruser Documentation/sv]]


[[Category:Poweruser Documentation]]
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Revision as of 18:18, 9 February 2015

PySide

PySide is a Python binding of the cross-platform GUI toolkit Qt. FreeCAD uses PySide for all GUI (Graphic User Intercase) purposes. PySide evolved from the PyQt package which was previously used by FreeCAD for it's GUI. See Differences Between PySide and PyQt for more information on the differences.

Users of FreeCAD often achieve everything using the built-in interface. But for users who want to customise their operations then the Python interface exists which is documented in the Python Scripting Tutorial. The Python interface for FreeCAD had great flexibility and power. For it's user interaction Python with FreeCAD uses PySide, which is what is documented on this page.

Python offers the 'print' statement which gives the code:

print 'Hello World'

With Python's print statement you have only limited control of the appearance and behaviour. PySide supplies the missing control and also handles environments (such as the FreeCAD macro file environment) where the built-in facilities of Python are not enough.

PySide's abilities range from:

to:

PySide is described in the following 3 pages which should follow on one from each other:

They divide the subject matter into 3 parts, differentiated by level of exposure to PySide, Python and the FreeCAD internals. The first page has overview and background material giving a description of PySide and how it is put together while the second and third pages are mostly code examples at different levels.

The intention is that the associated pages will provide simple Python code to run PySide so that the user working on a problem can easily copy the code, paste it into their own work, adapt it as necessary and return to their problem solving with FreeCAD. Hopefully they don't have to go chasing off across the internet looking for answers to PySide questions. At the same time this page is not intended to replace the various comprehensive PySide tutorials and reference sites available on the web.

Pivy
Scripted objects