140 lines
4.3 KiB
Python
140 lines
4.3 KiB
Python
'''
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Simple Text Editor
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'''
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import os
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import sys
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if True:
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import tkinter as Tkinter
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import tkinter.filedialog as tkFileDialog
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import tkinter.messagebox as tkMessageBox
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import tkinter.simpledialog as tkSimpleDialog
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class TextEditor:
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def _write(self, handle):
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content = self._get()
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handle.write(content)
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self._savedcontent = content
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def _open(self, filename):
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self.filename = filename or ''
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if filename and os.path.exists(filename):
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with open(filename, 'r') as handle:
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content = handle.read()
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else:
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content = ''
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self._set(content)
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def _get(self):
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return self.text.get(0.0, Tkinter.END)
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def _set(self, content):
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self.text.delete(0.0, Tkinter.END)
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self.text.insert(0.0, content)
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self._savedcontent = self._get()
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def doSaveAs(self, *args):
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handle = tkFileDialog.asksaveasfile(mode='w',
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initialfile=os.path.basename(self.filename),
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initialdir=os.path.dirname(self.filename),
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parent=self.root)
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if handle:
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with handle:
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self._write(handle)
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self.filename = handle.name
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def doSave(self, *args):
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if not self.filename:
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return self.doSaveAs()
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with open(self.filename, 'w') as handle:
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self._write(handle)
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def doOpen(self, *args):
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filename = tkFileDialog.askopenfilename(parent=self.root)
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if filename:
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self._open(filename)
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def onClose(self):
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if self._get() != self._savedcontent:
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ok = tkMessageBox.askyesnocancel("Save?", "Save before quit?",
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parent=self.root)
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if ok:
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self.doSave()
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elif ok is None:
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return
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self.root.destroy()
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def __init__(self, parent=None, filename='', title='Text Editor'):
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self.root = Tkinter.Toplevel(parent) if parent else Tkinter.Tk()
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self.root.title(title)
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self.root.minsize(width=500, height=400)
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self.root.protocol("WM_DELETE_WINDOW", self.onClose)
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menubar = Tkinter.Menu(self.root)
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filemenu = Tkinter.Menu(menubar)
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filemenu.add_command(label="Open", command=self.doOpen, accelerator="Ctrl+O")
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filemenu.add_command(label="Save", command=self.doSave, accelerator="Ctrl+S")
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filemenu.add_command(label="Save as ...", command=self.doSaveAs, accelerator="Ctrl+Shift+S")
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menubar.add_cascade(label="File", menu=filemenu)
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self.root.config(menu=menubar)
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self.text = Tkinter.Text(self.root, background='white', foreground='black')
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self.text.pack(expand=Tkinter.YES, fill=Tkinter.BOTH)
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self._open(filename)
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self.text.bind("<Control-o>", self.doOpen)
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self.text.bind("<Control-s>", self.doSave)
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self.text.bind("<Control-S>", self.doSaveAs)
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def edit_pymolrc(app):
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import Pmw
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if not app.pymol.invocation.options.pymolrc:
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_edit_pymolrc(app)
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return
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def callback(button):
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s = dialog.getcurselection() if button == 'OK' else ()
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dialog.withdraw()
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_edit_pymolrc(app, s)
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dialog = Pmw.SelectionDialog(app.root,
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title='Select pymolrc file',
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buttons=('OK', 'Cancel'), defaultbutton='OK',
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scrolledlist_labelpos='nw',
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label_text='Active pymolrc files:',
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scrolledlist_items=tuple(app.pymol.invocation.options.pymolrc),
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command=callback)
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# set focus on the first item
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dialog.component('scrolledlist').selection_set(0)
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dialog.geometry('700x200')
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app.my_show(dialog)
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def _edit_pymolrc(app, _list=()):
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try:
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pymolrc = _list[0]
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except (TypeError, IndexError):
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if sys.platform.startswith('win'):
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pymolrc = os.path.expandvars(r'$HOMEDRIVE$HOMEPATH\pymolrc.pml')
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else:
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pymolrc = os.path.expandvars(r'$HOME/.pymolrc')
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pymolrc = tkSimpleDialog.askstring('Create new pymolrc?',
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'Filename of new pymolrc',
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initialvalue=pymolrc)
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if pymolrc:
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TextEditor(app.root, pymolrc, 'pymolrc (%s)' % pymolrc)
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if __name__ == '__main__':
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try:
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filename = sys.argv[1]
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except:
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filename = ''
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app = TextEditor(None, filename)
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app.root.mainloop()
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