378 lines
8.8 KiB
Python
378 lines
8.8 KiB
Python
# A minimal text editor using MLTE. Based on wed.py.
|
|
#
|
|
# To be done:
|
|
# - Functionality: find, etc.
|
|
|
|
from Menu import DrawMenuBar
|
|
from FrameWork import *
|
|
from Carbon import Win
|
|
from Carbon import Ctl
|
|
from Carbon import Qd
|
|
from Carbon import Res
|
|
from Carbon import Scrap
|
|
import os
|
|
import macfs
|
|
from Carbon import MacTextEditor
|
|
from Carbon import Mlte
|
|
|
|
UNDOLABELS = [ # Indexed by MLTECanUndo() value
|
|
"Typing", "Cut", "Paste", "Clear", "Font Change", "Color Change", "Size Change",
|
|
"Style Change", "Align Left", "Align Center", "Align Right", "Drop", "Move"]
|
|
|
|
class MlteWindow(Window):
|
|
def open(self, path, name, data):
|
|
self.path = path
|
|
self.name = name
|
|
r = windowbounds(400, 400)
|
|
w = Win.NewWindow(r, name, 1, 0, -1, 1, 0)
|
|
self.wid = w
|
|
flags = MacTextEditor.kTXNDrawGrowIconMask|MacTextEditor.kTXNWantHScrollBarMask| \
|
|
MacTextEditor.kTXNWantVScrollBarMask
|
|
self.ted, self.frameid = Mlte.TXNNewObject(None, w, None, flags, MacTextEditor.kTXNTextEditStyleFrameType,
|
|
MacTextEditor.kTXNTextFile, MacTextEditor.kTXNMacOSEncoding)
|
|
self.ted.TXNSetData(MacTextEditor.kTXNTextData, data, 0, 0x7fffffff)
|
|
self.changed = 0
|
|
self.do_postopen()
|
|
self.do_activate(1, None)
|
|
|
|
def do_idle(self, event):
|
|
self.ted.TXNIdle()
|
|
self.ted.TXNAdjustCursor(None)
|
|
|
|
|
|
|
|
def do_activate(self, onoff, evt):
|
|
if onoff:
|
|
## self.ted.TXNActivate(self.frameid, 0)
|
|
self.ted.TXNFocus(1)
|
|
self.parent.active = self
|
|
else:
|
|
self.ted.TXNFocus(0)
|
|
self.parent.active = None
|
|
self.parent.updatemenubar()
|
|
|
|
def do_update(self, wid, event):
|
|
self.ted.TXNDraw(None)
|
|
|
|
def do_postresize(self, width, height, window):
|
|
self.ted.TXNResizeFrame(width, height, self.frameid)
|
|
|
|
def do_contentclick(self, local, modifiers, evt):
|
|
self.ted.TXNClick(evt)
|
|
self.parent.updatemenubar()
|
|
|
|
def do_char(self, ch, event):
|
|
self.ted.TXNKeyDown(event)
|
|
self.parent.updatemenubar()
|
|
|
|
def close(self):
|
|
if self.changed:
|
|
save = EasyDialogs.AskYesNoCancel('Save window "%s" before closing?'%self.name, 1)
|
|
if save > 0:
|
|
self.menu_save()
|
|
elif save < 0:
|
|
return
|
|
if self.parent.active == self:
|
|
self.parent.active = None
|
|
self.ted.TXNDeleteObject()
|
|
del self.ted
|
|
## del self.tedtexthandle
|
|
self.do_postclose()
|
|
|
|
def menu_save(self):
|
|
if not self.path:
|
|
self.menu_save_as()
|
|
return # Will call us recursively
|
|
dhandle = self.ted.TXNGetData(0, 0x7fffffff)
|
|
data = dhandle.data
|
|
fp = open(self.path, 'wb') # NOTE: wb, because data has CR for end-of-line
|
|
fp.write(data)
|
|
if data[-1] <> '\r': fp.write('\r')
|
|
fp.close()
|
|
self.changed = 0
|
|
|
|
def menu_save_as(self):
|
|
fss, ok = macfs.StandardPutFile('Save as:')
|
|
if not ok: return
|
|
self.path = fss.as_pathname()
|
|
self.name = os.path.split(self.path)[-1]
|
|
self.wid.SetWTitle(self.name)
|
|
self.menu_save()
|
|
|
|
def menu_cut(self):
|
|
## self.ted.WESelView()
|
|
self.ted.TXNCut()
|
|
### Mlte.ConvertToPublicScrap()
|
|
## Scrap.ZeroScrap()
|
|
## self.ted.WECut()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
self.changed = 1
|
|
|
|
def menu_copy(self):
|
|
## Scrap.ZeroScrap()
|
|
self.ted.TXNCopy()
|
|
### Mlte.ConvertToPublicScrap()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
|
|
def menu_paste(self):
|
|
### Mlte.ConvertFromPublicScrap()
|
|
self.ted.TXNPaste()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
self.changed = 1
|
|
|
|
def menu_clear(self):
|
|
## self.ted.WESelView()
|
|
self.ted.TXNClear()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
self.changed = 1
|
|
|
|
def menu_undo(self):
|
|
self.ted.TXNUndo()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
|
|
def menu_redo(self):
|
|
self.ted.TXNRedo()
|
|
## self.updatescrollbars()
|
|
self.parent.updatemenubar()
|
|
|
|
def have_selection(self):
|
|
start, stop = self.ted.TXNGetSelection()
|
|
return start < stop
|
|
|
|
def can_paste(self):
|
|
return Mlte.TXNIsScrapPastable()
|
|
|
|
def can_undo(self):
|
|
can, which = self.ted.TXNCanUndo()
|
|
if not can:
|
|
return None
|
|
if which >= len(UNDOLABELS):
|
|
# Unspecified undo
|
|
return "Undo"
|
|
which = UNDOLABELS[which]
|
|
|
|
return "Undo "+which
|
|
|
|
def can_redo(self):
|
|
can, which = self.ted.TXNCanRedo()
|
|
if not can:
|
|
return None
|
|
if which >= len(UNDOLABELS):
|
|
# Unspecified undo
|
|
return "Redo"
|
|
which = UNDOLABELS[which]
|
|
|
|
return "Redo "+which
|
|
|
|
class Mlted(Application):
|
|
def __init__(self):
|
|
Application.__init__(self)
|
|
self.num = 0
|
|
self.active = None
|
|
self.updatemenubar()
|
|
|
|
def makeusermenus(self):
|
|
self.filemenu = m = Menu(self.menubar, "File")
|
|
self.newitem = MenuItem(m, "New window", "N", self.open)
|
|
self.openitem = MenuItem(m, "Open...", "O", self.openfile)
|
|
self.closeitem = MenuItem(m, "Close", "W", self.closewin)
|
|
m.addseparator()
|
|
self.saveitem = MenuItem(m, "Save", "S", self.save)
|
|
self.saveasitem = MenuItem(m, "Save as...", "", self.saveas)
|
|
m.addseparator()
|
|
self.quititem = MenuItem(m, "Quit", "Q", self.quit)
|
|
|
|
self.editmenu = m = Menu(self.menubar, "Edit")
|
|
self.undoitem = MenuItem(m, "Undo", "Z", self.undo)
|
|
self.redoitem = MenuItem(m, "Redo", None, self.redo)
|
|
m.addseparator()
|
|
self.cutitem = MenuItem(m, "Cut", "X", self.cut)
|
|
self.copyitem = MenuItem(m, "Copy", "C", self.copy)
|
|
self.pasteitem = MenuItem(m, "Paste", "V", self.paste)
|
|
self.clearitem = MenuItem(m, "Clear", "", self.clear)
|
|
|
|
# Groups of items enabled together:
|
|
self.windowgroup = [self.closeitem, self.saveitem, self.saveasitem, self.editmenu]
|
|
self.focusgroup = [self.cutitem, self.copyitem, self.clearitem]
|
|
self.windowgroup_on = -1
|
|
self.focusgroup_on = -1
|
|
self.pastegroup_on = -1
|
|
self.undo_label = "never"
|
|
self.redo_label = "never"
|
|
|
|
def updatemenubar(self):
|
|
changed = 0
|
|
on = (self.active <> None)
|
|
if on <> self.windowgroup_on:
|
|
for m in self.windowgroup:
|
|
m.enable(on)
|
|
self.windowgroup_on = on
|
|
changed = 1
|
|
if on:
|
|
# only if we have an edit menu
|
|
on = self.active.have_selection()
|
|
if on <> self.focusgroup_on:
|
|
for m in self.focusgroup:
|
|
m.enable(on)
|
|
self.focusgroup_on = on
|
|
changed = 1
|
|
on = self.active.can_paste()
|
|
if on <> self.pastegroup_on:
|
|
self.pasteitem.enable(on)
|
|
self.pastegroup_on = on
|
|
changed = 1
|
|
on = self.active.can_undo()
|
|
if on <> self.undo_label:
|
|
if on:
|
|
self.undoitem.enable(1)
|
|
self.undoitem.settext(on)
|
|
self.undo_label = on
|
|
else:
|
|
self.undoitem.settext("Nothing to undo")
|
|
self.undoitem.enable(0)
|
|
changed = 1
|
|
on = self.active.can_redo()
|
|
if on <> self.redo_label:
|
|
if on:
|
|
self.redoitem.enable(1)
|
|
self.redoitem.settext(on)
|
|
self.redo_label = on
|
|
else:
|
|
self.redoitem.settext("Nothing to redo")
|
|
self.redoitem.enable(0)
|
|
changed = 1
|
|
if changed:
|
|
DrawMenuBar()
|
|
|
|
#
|
|
# Apple menu
|
|
#
|
|
|
|
def do_about(self, id, item, window, event):
|
|
EasyDialogs.Message("A simple single-font text editor based on MacTextEditor")
|
|
|
|
#
|
|
# File menu
|
|
#
|
|
|
|
def open(self, *args):
|
|
self._open(0)
|
|
|
|
def openfile(self, *args):
|
|
self._open(1)
|
|
|
|
def _open(self, askfile):
|
|
if askfile:
|
|
fss, ok = macfs.StandardGetFile('TEXT')
|
|
if not ok:
|
|
return
|
|
path = fss.as_pathname()
|
|
name = os.path.split(path)[-1]
|
|
try:
|
|
fp = open(path, 'rb') # NOTE binary, we need cr as end-of-line
|
|
data = fp.read()
|
|
fp.close()
|
|
except IOError, arg:
|
|
EasyDialogs.Message("IOERROR: "+`arg`)
|
|
return
|
|
else:
|
|
path = None
|
|
name = "Untitled %d"%self.num
|
|
data = ''
|
|
w = MlteWindow(self)
|
|
w.open(path, name, data)
|
|
self.num = self.num + 1
|
|
|
|
def closewin(self, *args):
|
|
if self.active:
|
|
self.active.close()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def save(self, *args):
|
|
if self.active:
|
|
self.active.menu_save()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def saveas(self, *args):
|
|
if self.active:
|
|
self.active.menu_save_as()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
|
|
def quit(self, *args):
|
|
for w in self._windows.values():
|
|
w.close()
|
|
if self._windows:
|
|
return
|
|
self._quit()
|
|
|
|
#
|
|
# Edit menu
|
|
#
|
|
|
|
def undo(self, *args):
|
|
if self.active:
|
|
self.active.menu_undo()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def redo(self, *args):
|
|
if self.active:
|
|
self.active.menu_redo()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def cut(self, *args):
|
|
if self.active:
|
|
self.active.menu_cut()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def copy(self, *args):
|
|
if self.active:
|
|
self.active.menu_copy()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def paste(self, *args):
|
|
if self.active:
|
|
self.active.menu_paste()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
def clear(self, *args):
|
|
if self.active:
|
|
self.active.menu_clear()
|
|
else:
|
|
EasyDialogs.Message("No active window?")
|
|
|
|
#
|
|
# Other stuff
|
|
#
|
|
|
|
def idle(self, event):
|
|
if self.active:
|
|
self.active.do_idle(event)
|
|
else:
|
|
Qd.SetCursor(Qd.qd.arrow)
|
|
|
|
def main():
|
|
Mlte.TXNInitTextension(0)
|
|
try:
|
|
App = Mlted()
|
|
App.mainloop()
|
|
finally:
|
|
Mlte.TXNTerminateTextension()
|
|
|
|
if __name__ == '__main__':
|
|
main()
|
|
|