| # A minimal text editor. |
| # |
| # To be done: |
| # - Functionality: find, etc. |
| |
| from Carbon.Menu import DrawMenuBar |
| from FrameWork import * |
| from Carbon import Win |
| from Carbon import Qd |
| from Carbon import Res |
| import waste |
| import WASTEconst |
| from Carbon 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() |
| if hasattr(Scrap, 'ZeroScrap'): |
| Scrap.ZeroScrap() |
| else: |
| Scrap.ClearCurrentScrap() |
| self.ted.WECut() |
| self.updatescrollbars() |
| self.parent.updatemenubar() |
| self.changed = 1 |
| |
| def menu_copy(self): |
| if hasattr(Scrap, 'ZeroScrap'): |
| Scrap.ZeroScrap() |
| else: |
| Scrap.ClearCurrentScrap() |
| 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() |
| |