# A minimal text editor.
#
# To be done:
# - Functionality: find, etc.
from Menu import DrawMenuBar
from FrameWork import *
import Win
import Qd
import Res
import waste
import WASTEconst
import Scrap
import os
import macfs
UNDOLABELS = [ # Indexed by WEGetUndoInfo() value
None, "", "typing", "Cut", "Paste", "Clear", "Drag", "Style"]
BIGREGION=Qd.NewRgn()
Qd.SetRectRgn(BIGREGION, -16000, -16000, 16000, 16000)
class WasteWindow(ScrolledWindow):
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
vr = 0, 0, r[2]-r[0]-15, r[3]-r[1]-15
dr = (0, 0, 10240, 0)
Qd.SetPort(w)
Qd.TextFont(4)
Qd.TextSize(9)
flags = WASTEconst.weDoAutoScroll | WASTEconst.weDoOutlineHilite | \
WASTEconst.weDoMonoStyled | WASTEconst.weDoUndo
self.ted = waste.WENew(dr, vr, flags)
self.tedtexthandle = Res.Resource(data)
self.ted.WEUseText(self.tedtexthandle)
self.ted.WECalText()
w.DrawGrowIcon()
self.scrollbars()
self.changed = 0
self.do_postopen()
self.do_activate(1, None)
def do_idle(self, event):
(what, message, when, where, modifiers) = event
Qd.SetPort(self.wid)
self.ted.WEIdle()
if self.ted.WEAdjustCursor(where, BIGREGION):
return
Qd.SetCursor(Qd.qd.arrow)
def getscrollbarvalues(self):
dr = self.ted.WEGetDestRect()
vr = self.ted.WEGetViewRect()
vx = self.scalebarvalue(dr[0], dr[2], vr[0], vr[2])
vy = self.scalebarvalue(dr[1], dr[3], vr[1], vr[3])
## print dr, vr, vx, vy
return vx, vy
def scrollbar_callback(self, which, what, value):
if which == 'y':
if what == 'set':
height = self.ted.WEGetHeight(0, 0x3fffffff)
cur = self.getscrollbarvalues()[1]
delta = (cur-value)*height/32767
if what == '-':
topline_off,dummy = self.ted.WEGetOffset((1,1))
topline_num = self.ted.WEOffsetToLine(topline_off)
delta = self.ted.WEGetHeight(topline_num, topline_num+1)
elif what == '--':
delta = (self.ted.WEGetViewRect()[3]-10)
if delta <= 0:
delta = 10 # Random value
elif what == '+':
# XXXX Wrong: should be bottom line size
topline_off,dummy = self.ted.WEGetOffset((1,1))
topline_num = self.ted.WEOffsetToLine(topline_off)
delta = -self.ted.WEGetHeight(topline_num, topline_num+1)
elif what == '++':
delta = -(self.ted.WEGetViewRect()[3]-10)
if delta >= 0:
delta = -10
self.ted.WEScroll(0, delta)
## print 'SCROLL Y', delta
else:
if what == 'set':
return # XXXX
vr = self.ted.WEGetViewRect()
winwidth = vr[2]-vr[0]
if what == '-':
delta = winwidth/10
elif what == '--':
delta = winwidth/2
elif what == '+':
delta = -winwidth/10
elif what == '++':
delta = -winwidth/2
self.ted.WEScroll(delta, 0)
# Pin the scroll
l, t, r, b = self.ted.WEGetDestRect()
vl, vt, vr, vb = self.ted.WEGetViewRect()
if t > 0 or l > 0:
dx = dy = 0
if t > 0: dy = -t
if l > 0: dx = -l
## print 'Extra scroll', dx, dy
self.ted.WEScroll(dx, dy)
elif b < vb:
## print 'Extra downscroll', b-vb
self.ted.WEScroll(0, b-vb)
def do_activate(self, onoff, evt):
## print "ACTIVATE", onoff
Qd.SetPort(self.wid)
ScrolledWindow.do_activate(self, onoff, evt)
if onoff:
self.ted.WEActivate()
self.parent.active = self
self.parent.updatemenubar()
else:
self.ted.WEDeactivate()
def do_update(self, wid, event):
region = wid.GetWindowPort().visRgn
if Qd.EmptyRgn(region):
return
Qd.EraseRgn(region)
self.ted.WEUpdate(region)
self.updatescrollbars()
def do_postresize(self, width, height, window):
l, t, r, b = self.ted.WEGetViewRect()
vr = (l, t, l+width-15, t+height-15)
self.ted.WESetViewRect(vr)
self.wid.InvalWindowRect(vr)
ScrolledWindow.do_postresize(self, width, height, window)
def do_contentclick(self, local, modifiers, evt):
(what, message, when, where, modifiers) = evt
self.ted.WEClick(local, modifiers, when)
self.updatescrollbars()
self.parent.updatemenubar()
def do_char(self, ch, event):
self.ted.WESelView()
(what, message, when, where, modifiers) = event
self.ted.WEKey(ord(ch), modifiers)
self.changed = 1
self.updatescrollbars()
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.parent.updatemenubar()
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
## print 'Saving to ', self.path
dhandle = self.ted.WEGetText()
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.WECut()
Scrap.ZeroScrap()
self.ted.WECut()
self.updatescrollbars()
self.parent.updatemenubar()
self.changed = 1
def menu_copy(self):
Scrap.ZeroScrap()
self.ted.WECopy()
self.updatescrollbars()
self.parent.updatemenubar()
def menu_paste(self):
self.ted.WESelView()
self.ted.WEPaste()
self.updatescrollbars()
self.parent.updatemenubar()
self.changed = 1
def menu_clear(self):
self.ted.WESelView()
self.ted.WEDelete()
self.updatescrollbars()
self.parent.updatemenubar()
self.changed = 1
def menu_undo(self):
self.ted.WEUndo()
self.updatescrollbars()
self.parent.updatemenubar()
def have_selection(self):
start, stop = self.ted.WEGetSelection()
return start < stop
def can_paste(self):
return self.ted.WECanPaste()
def can_undo(self):
which, redo = self.ted.WEGetUndoInfo()
which = UNDOLABELS[which]
if which == None: return None
if redo:
return "Redo "+which
else:
return "Undo "+which
class Wed(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.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"
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
if changed:
DrawMenuBar()
#
# Apple menu
#
def do_about(self, id, item, window, event):
EasyDialogs.Message("A simple single-font text editor based on WASTE")
#
# 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 = WasteWindow(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 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():
App = Wed()
App.mainloop()
if __name__ == '__main__':
main()
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