--- /dev/null
+# 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, 0x55555555)
+ 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)
+ Win.InvalRect(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
+ raise self
+
+ #
+ # 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)
+
+def main():
+ App = Ped()
+ App.mainloop()
+
+if __name__ == '__main__':
+ main()
+
projects / python / commitdiff