A simple scrollbar-less single-font (but multi-window) text

editor. More to come...

Mac/Demo/textedit/ped.py

+# Test TE module.
+# Draw a window in which the user can type.
+#
+# This test expects Win, Evt and FrameWork (and anything used by those)
+# to work.
+#
+# Actually, it is more a test of FrameWork by now....
+
+from Menu import DrawMenuBar
+from FrameWork import *
+import Win
+import Qd
+import TE
+import os
+import macfs
+
+class TEWindow(Window):
+	def open(self, path, name, data):
+		self.path = path
+		self.name = name
+		r = (40, 40, 400, 300)
+		w = Win.NewWindow(r, name, 1, 0, -1, 1, 0x55555555)
+		self.wid = w
+		r2 = (0, 0, 345, 245)
+		Qd.SetPort(w)
+		Qd.TextFont(4)
+		Qd.TextSize(9)
+		self.ted = TE.TENew(r2, r2)
+		self.ted.TEAutoView(1)
+		self.ted.TESetText(data)
+		w.DrawGrowIcon()
+		self.changed = 0
+		self.do_postopen()
+		self.parent.updatemenubar()
+		
+	def do_idle(self):
+		self.ted.TEIdle()
+		
+	def do_activate(self, onoff, evt):
+		if onoff:
+			self.ted.TEActivate()
+			self.parent.active = self
+			self.parent.updatemenubar()
+		else:
+			self.ted.TEDeactivate()
+
+	def do_update(self, wid, event):
+		Qd.EraseRect(wid.GetWindowPort().portRect)
+		self.ted.TEUpdate(wid.GetWindowPort().portRect)
+		
+	def do_contentclick(self, local, modifiers, evt):
+		shifted = (modifiers & 0x200)
+		self.ted.TEClick(local, shifted)
+		self.parent.updatemenubar()
+
+	def do_char(self, ch, event):
+		self.ted.TEKey(ord(ch))
+		self.changed = 1
+		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
+		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.TEGetText()
+		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.TECut()
+		self.parent.updatemenubar()
+		
+	def menu_copy(self):
+		self.ted.TECopy()
+		
+	def menu_paste(self):
+		self.ted.TEPaste()
+		self.parent.updatemenubar()
+		
+	def menu_clear(self):
+		self.ted.TEDelete()
+		self.parent.updatemenubar()
+		
+	def have_selection(self):
+##		return (self.ted.selStart > self.ted.selEnd)
+		return 1
+
+class Ped(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)
+		
+		# Not yet implemented:
+		self.undoitem.enable(0)
+		
+		# 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
+		
+	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:
+			on = self.active.have_selection()
+		if on <> self.focusgroup_on:
+			for m in self.focusgroup:
+				m.enable(on)
+			self.focusgroup_on = on
+			changed = 1
+		if changed:
+			DrawMenuBar()
+
+	#
+	# Apple menu
+	#
+	
+	def do_about(self, id, item, window, event):
+		EasyDialogs.Message("A simple single-font text editor")
+			
+	#
+	# 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 = TEWindow(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
+		raise self
+		
+	#
+	# Edit menu
+	#
+	
+	def undo(self, *args):
+		pass
+		
+	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, *args):
+		for l in self._windows.values():
+			l.do_idle()
+
+def main():
+	App = Ped()
+	App.mainloop()
+	
+if __name__ == '__main__':
+	main()
+