是否可以使用Jython的SWT？

Question

SWT-Gui看起来非常好看.有没有一种简单的方法在Jython中使用它？

Answer 1

鉴于您可以使用Jython中的所有Java类,也可以使用SWT.

对于从SWT片段改编的示例,请确保您的CLASSPATH上有SWT jar:

import org.eclipse.swt as swt
import org.eclipse.swt.widgets as widgets
import org.eclipse.swt.layout as layout

result = None

display = widgets.Display()

shell = widgets.Shell(display)
shell.pack()
shell.open()

dialog = widgets.Shell(shell, swt.SWT.DIALOG_TRIM | swt.SWT.APPLICATION_MODAL)
dialog.setLayout(layout.RowLayout())

ok = widgets.Button(dialog, swt.SWT.PUSH)
ok.setText ("OK")
cancel = widgets.Button(dialog, swt.SWT.PUSH);
cancel.setText("Cancel");

class MyListener(widgets.Listener):
    def handleEvent(self, event):
        global result
        result = event.widget == ok
        dialog.close()

listener = MyListener()
ok.addListener(swt.SWT.Selection, listener)
cancel.addListener(swt.SWT.Selection, listener)

dialog.pack()
dialog.open()
while not dialog.isDisposed():
    if not display.readAndDispatch():
        display.sleep ()
print "Result:", result
display.dispose()

Answer 2

Jython还有其他一些让代码更清晰的细节.

Jython自动将getter和setter转换为公共属性

ok.setText ("OK")

变得简单

ok.text = 'OK'

然后,您可以将它们作为命名参数提供给构造函数.Jython还处理为事件处理程序创建侦听器对象:

def handleEvent(self, event):
    global result
    result = event.widget == ok
    dialog.close()

ok = widgets.Button(dialog, swt.SWT.PUSH
        text='OK',
        widgetSelected=handleEvent)
cancel = widgets.Button(dialog, swt.SWT.PUSH
        text='Cancel',
        widgetSelected=handleEvent)

Answer 3

实际上,不需要特殊模块.Sean McGrath的演讲包含了一个简单的Jython/SWT GUI示例.

演讲的幻灯片11开始于:

"""
Simple SWT Example
Sean McGrath
"""
from org.eclipse.swt.events import *
from org.eclipse.swt.graphics import *
from org.eclipse.swt.layout import *
from org.eclipse.swt.widgets import *
from org.eclipse.swt.layout.GridData import *
from org.eclipse.swt import *

它表明SWT可直接从Jython使用.在完整的例子就在那里,在肖恩的网站.