所以我刚开始将我的脚趾浸入pyRevit中的WPF中。我试图像这样实现pyrevit.forms.WPFWindow类：
# -*- coding: UTF-8 -*-
"""
Third-Party software credits:
pyRevit: repository at https://github.com/eirannejad/pyRevit
"""
import System, clr, json, sys
clr.AddReference("System.Windows.Forms")
clr.AddReference('IronPython.Wpf')
import wpf
from Autodesk.Revit.DB import *
from pyrevit import revit, script, forms
class FactorySettings(forms.WPFWindow):
def __init__(self):
forms.WPFWindow.__init__(self, script.get_bundle_file('settings.xaml'))
def something_click(self, A, B):
plantings = FilteredElementCollector(revit.doc) \
.WhereElementIsElementType() \
.OfCategory(BuiltInCategory.OST_Planting)
ui = FactorySettings()
ui.show()
这是我的xaml：
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:Collections="clr-namespace:System.Collections;assembly=mscorlib"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
ShowInTaskbar="False" ResizeMode="CanResize"
WindowStartupLocation="CenterScreen"
HorizontalContentAlignment="Center"
Title="Set worksets" Width="300" SizeToContent="Height"
>
<StackPanel Margin="0,0,0,0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Button Content="Do something" Name="something" Click="something_click"/>
</StackPanel>
</Window>
由于具有def show(self, modal=False):类功能，因此将打开一个非模式窗口。我的问题是，即使我的点击功能仅调用FilteredElementCollector对象，Revit也会崩溃。如果执行ui.show(modal=True)，它将起作用，但是在Revit UI中什么也做不了。我真正想要的是这样做：
def something_click(self, A, B):
if self.PHfamSymbol != None:
with forms.WarningBar(title='Place an instance of the placeholder object.'):
revit.uidoc.PromptForFamilyInstancePlacement(self.PHfamSymbol)
这将不起作用，因为焦点仍在UI上。我试过了：
def something_click(self, A, B):
if self.PHfamSymbol != None:
self.Close()
with forms.WarningBar(title='Place an instance of the placeholder object.'):
try:
revit.uidoc.PromptForFamilyInstancePlacement(self.PHfamSymbol)
except:
pass
这可行，但是完成后我需要创建UI的新实例。pyRevit是否可以使用非模态UI？
您需要使用ExternalEvent在非模式窗口中与Revit进行交互。 pyRevitMEP中有许多样本。我做了一个reusable class here。我在许多pyRevitMEP脚本（例如Element3DRotation）中使用了它。您也可以查看我的旧博客[Revit API] Simple Modeless Form (External Event Handler) in pyRevit帖子，其中引用了更多资源并有更多评论。
"""
Copyright (c) 2017 Cyril Waechter
Python scripts for Autodesk Revit
This file is part of pypevitmep repository at https://github.com/CyrilWaechter/pypevitmep
pypevitmep is an extension for pyRevit. It contain free set of scripts for Autodesk Revit:
you can redistribute it and/or modify it under the terms of the GNU General Public License
version 3, as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
See this link for a copy of the GNU General Public License protecting this package.
https://github.com/CyrilWaechter/pypevitmep/blob/master/LICENSE
"""
from Autodesk.Revit.UI import IExternalEventHandler, ExternalEvent
from Autodesk.Revit.DB import Transaction
from Autodesk.Revit.Exceptions import InvalidOperationException
import rpw
from pyrevit.forms import WPFWindow
doc = rpw.revit.doc
uidoc = rpw.revit.uidoc
__doc__ = "A simple modeless form sample"
__title__ = "Modeless Form"
__author__ = "Cyril Waechter"
__persistentengine__ = True
# Simple function we want to run
def delete_elements():
with rpw.db.Transaction("Delete selection"):
for elid in uidoc.Selection.GetElementIds():
doc.Delete(elid)
# Create a subclass of IExternalEventHandler
class SimpleEventHandler(IExternalEventHandler):
"""
Simple IExternalEventHandler sample
"""
# __init__ is used to make function from outside of the class to be executed by the handler. \
# Instructions could be simply written under Execute method only
def __init__(self, do_this):
self.do_this = do_this
# Execute method run in Revit API environment.
def Execute(self, uiapp):
try:
self.do_this()
except InvalidOperationException:
# If you don't catch this exeption Revit may crash.
print "InvalidOperationException catched"
def GetName(self):
return "simple function executed by an IExternalEventHandler in a Form"
# Now we need to make an instance of this handler. Moreover, it shows that the same class could be used to for
# different functions using different handler class instances
simple_event_handler = SimpleEventHandler(delete_elements)
# We now need to create the ExternalEvent
ext_event = ExternalEvent.Create(simple_event_handler)
# A simple WPF form used to call the ExternalEvent
class ModelessForm(WPFWindow):
"""
Simple modeless form sample
"""
def __init__(self, xaml_file_name):
WPFWindow.__init__(self, xaml_file_name)
self.simple_text.Text = "Hello World"
self.Show()
def delete_click(self, sender, e):
# This Raise() method launch a signal to Revit to tell him you want to do something in the API context
ext_event.Raise()
# Let's launch our beautiful and useful form !
modeless_form = ModelessForm("ModelessForm.xaml")
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Delete things:" Height="150" Width="300" ShowInTaskbar="False" Topmost="True"
WindowStartupLocation="CenterScreen" ScrollViewer.VerticalScrollBarVisibility="Disabled" HorizontalContentAlignment="Center">
<StackPanel Margin="20" HorizontalAlignment="Stretch">
<TextBlock x:Name="simple_text" Text="" Grid.Column="0" HorizontalAlignment="Center" FontWeight="Bold"/>
<Button Content="Delete selected elements" Height="30" Margin="10,10" Click="delete_click"/>
</StackPanel>
</Window>