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CadPythonShell/PythonConsoleControl/PythonConsoleHost.cs at dev · chuongmep/CadPythonShell · GitHub
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PythonConsoleHost.cs
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PythonConsoleHost.cs
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// Copyright (c) 2010 Joe Moorhouse
using
IronPython
.
Hosting
;
using
IronPython
.
Runtime
;
using
Microsoft
.
Scripting
.
Hosting
;
using
Microsoft
.
Scripting
.
Hosting
.
Providers
;
using
Microsoft
.
Scripting
.
Hosting
.
Shell
;
using
System
;
using
System
.
Text
;
using
System
.
Threading
;
namespace
PythonConsoleControl
{
public
delegate
void
ConsoleCreatedEventHandler
(
object
sender
,
EventArgs
e
)
;
/// <summary>
/// Hosts the python console.
/// </summary>
public
class
PythonConsoleHost
:
ConsoleHost
,
IDisposable
{
private
Thread
thread
;
private
PythonTextEditor
textEditor
;
private
PythonConsole
pythonConsole
;
public
event
ConsoleCreatedEventHandler
ConsoleCreated
;
public
PythonConsoleHost
(
PythonTextEditor
textEditor
)
{
this
.
textEditor
=
textEditor
;
}
public
PythonConsole
Console
{
get
{
return
pythonConsole
;
}
}
public
PythonTextEditor
Editor
{
get
{
return
textEditor
;
}
}
protected
override
Type
Provider
{
get
{
return
typeof
(
PythonContext
)
;
}
}
/// <summary>
/// Runs the console host in its own thread.
/// </summary>
public
void
Run
(
)
{
thread
=
new
Thread
(
RunConsole
)
;
thread
.
IsBackground
=
true
;
thread
.
Start
(
)
;
}
public
void
Dispose
(
)
{
if
(
pythonConsole
!=
null
)
{
pythonConsole
.
Dispose
(
)
;
}
if
(
thread
!=
null
)
{
thread
.
Join
(
)
;
}
}
protected
override
CommandLine
CreateCommandLine
(
)
{
return
new
PythonCommandLine
(
)
;
}
protected
override
OptionsParser
CreateOptionsParser
(
)
{
return
new
PythonOptionsParser
(
)
;
}
/// <remarks>
/// After the engine is created the standard output is replaced with our custom Stream class so we
/// can redirect the stdout to the text editor window.
/// This can be done in this method since the Runtime object will have been created before this method
/// is called.
/// </remarks>
protected
override
IConsole
CreateConsole
(
ScriptEngine
engine
,
CommandLine
commandLine
,
ConsoleOptions
options
)
{
SetOutput
(
new
PythonOutputStream
(
textEditor
)
)
;
pythonConsole
=
new
PythonConsole
(
textEditor
,
commandLine
)
;
if
(
ConsoleCreated
!=
null
)
ConsoleCreated
(
this
,
EventArgs
.
Empty
)
;
return
pythonConsole
;
}
public
void
WhenConsoleCreated
(
Action
<
PythonConsoleHost
>
action
)
{
if
(
pythonConsole
!=
null
)
{
pythonConsole
.
WhenConsoleInitialized
(
(
)
=>
action
(
this
)
)
;
}
else
{
ConsoleCreated
+=
(
sender
,
args
)
=>
WhenConsoleCreated
(
action
)
;
}
}
protected
virtual
void
SetOutput
(
PythonOutputStream
stream
)
{
Runtime
.
IO
.
SetOutput
(
stream
,
Encoding
.
UTF8
)
;
}
/// <summary>
/// Runs the console.
/// </summary>
private
void
RunConsole
(
)
{
this
.
Run
(
new
string
[
]
{
"-X:FullFrames"
}
)
;
}
protected
override
ScriptRuntimeSetup
CreateRuntimeSetup
(
)
{
ScriptRuntimeSetup
srs
=
ScriptRuntimeSetup
.
ReadConfiguration
(
)
;
foreach
(
var
langSetup
in
srs
.
LanguageSetups
)
{
if
(
langSetup
.
FileExtensions
.
Contains
(
".py"
)
)
{
langSetup
.
Options
[
"SearchPaths"
]
=
new
string
[
0
]
;
}
}
return
srs
;
}
protected
override
void
ParseHostOptions
(
string
/*!*/
[
]
/*!*/
args
)
{
// Python doesn't want any of the DLR base options.
foreach
(
string
s
in
args
)
{
Options
.
IgnoredArgs
.
Add
(
s
)
;
}
}
protected
override
void
ExecuteInternal
(
)
{
var
pc
=
HostingHelpers
.
GetLanguageContext
(
Engine
)
as
PythonContext
;
pc
.
SetModuleState
(
typeof
(
ScriptEngine
)
,
Engine
)
;
base
.
ExecuteInternal
(
)
;
}
}
}
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