| # A minimal text editor. | |
| # | |
| # To be done: | |
| # - Update viewrect after resize | |
| # - Handle horizontal scrollbar correctly | |
| # - Functionality: find, etc. | |
| from Carbon.Menu import DrawMenuBar | |
| from FrameWork import * | |
| from Carbon import Win | |
| from Carbon import Qd | |
| from Carbon import TE | |
| from Carbon import Scrap | |
| import os | |
| import macfs | |
| class TEWindow(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 | |
| x0, y0, x1, y1 = self.wid.GetWindowPort().GetPortBounds() | |
| x0 = x0 + 4 | |
| y0 = y0 + 4 | |
| x1 = x1 - 20 | |
| y1 = y1 - 20 | |
| vr = dr = x0, y0, x1, y1 | |
| ##vr = 4, 0, r[2]-r[0]-15, r[3]-r[1]-15 | |
| ##dr = (0, 0, vr[2], 0) | |
| Qd.SetPort(w) | |
| Qd.TextFont(4) | |
| Qd.TextSize(9) | |
| self.ted = TE.TENew(dr, vr) | |
| self.ted.TEAutoView(1) | |
| self.ted.TESetText(data) | |
| w.DrawGrowIcon() | |
| self.scrollbars() | |
| self.changed = 0 | |
| self.do_postopen() | |
| self.do_activate(1, None) | |
| def do_idle(self): | |
| self.ted.TEIdle() | |
| def getscrollbarvalues(self): | |
| dr = self.ted.destRect | |
| vr = self.ted.viewRect | |
| height = self.ted.nLines * self.ted.lineHeight | |
| vx = self.scalebarvalue(dr[0], dr[2]-dr[0], vr[0], vr[2]) | |
| vy = self.scalebarvalue(dr[1], dr[1]+height, vr[1], vr[3]) | |
| print dr, vr, height, vx, vy | |
| return None, vy | |
| def scrollbar_callback(self, which, what, value): | |
| if which == 'y': | |
| if what == 'set': | |
| height = self.ted.nLines * self.ted.lineHeight | |
| cur = self.getscrollbarvalues()[1] | |
| delta = (cur-value)*height/32767 | |
| if what == '-': | |
| delta = self.ted.lineHeight | |
| elif what == '--': | |
| delta = (self.ted.viewRect[3]-self.ted.lineHeight) | |
| if delta <= 0: | |
| delta = self.ted.lineHeight | |
| elif what == '+': | |
| delta = -self.ted.lineHeight | |
| elif what == '++': | |
| delta = -(self.ted.viewRect[3]-self.ted.lineHeight) | |
| if delta >= 0: | |
| delta = -self.ted.lineHeight | |
| self.ted.TEPinScroll(0, delta) | |
| print 'SCROLL Y', delta | |
| else: | |
| pass # No horizontal scrolling | |
| def do_activate(self, onoff, evt): | |
| print "ACTIVATE", onoff | |
| ScrolledWindow.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().GetPortBounds()) | |
| self.ted.TEUpdate(wid.GetWindowPort().GetPortBounds()) | |
| self.updatescrollbars() | |
| def do_contentclick(self, local, modifiers, evt): | |
| shifted = (modifiers & 0x200) | |
| self.ted.TEClick(local, shifted) | |
| self.updatescrollbars() | |
| self.parent.updatemenubar() | |
| def do_char(self, ch, event): | |
| self.ted.TESelView() | |
| self.ted.TEKey(ord(ch)) | |
| 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 | |
| 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): | |
| path = EasyDialogs.AskFileForSave(message='Save as:') | |
| if not path: return | |
| self.path = path | |
| self.name = os.path.split(self.path)[-1] | |
| self.wid.SetWTitle(self.name) | |
| self.menu_save() | |
| def menu_cut(self): | |
| self.ted.TESelView() | |
| self.ted.TECut() | |
| if hasattr(Scrap, 'ZeroScrap'): | |
| Scrap.ZeroScrap() | |
| else: | |
| Scrap.ClearCurrentScrap() | |
| TE.TEToScrap() | |
| self.updatescrollbars() | |
| self.parent.updatemenubar() | |
| self.changed = 1 | |
| def menu_copy(self): | |
| self.ted.TECopy() | |
| if hasattr(Scrap, 'ZeroScrap'): | |
| Scrap.ZeroScrap() | |
| else: | |
| Scrap.ClearCurrentScrap() | |
| TE.TEToScrap() | |
| self.updatescrollbars() | |
| self.parent.updatemenubar() | |
| def menu_paste(self): | |
| TE.TEFromScrap() | |
| self.ted.TESelView() | |
| self.ted.TEPaste() | |
| self.updatescrollbars() | |
| self.parent.updatemenubar() | |
| self.changed = 1 | |
| def menu_clear(self): | |
| self.ted.TESelView() | |
| self.ted.TEDelete() | |
| self.updatescrollbars() | |
| self.parent.updatemenubar() | |
| self.changed = 1 | |
| def have_selection(self): | |
| return (self.ted.selStart < self.ted.selEnd) | |
| 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 | |
| self.pastegroup_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: | |
| # 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 | |
| if hasattr(Scrap, 'InfoScrap'): | |
| on = (Scrap.InfoScrap()[0] <> 0) | |
| else: | |
| flavors = Scrap.GetCurrentScrap().GetScrapFlavorInfoList() | |
| for tp, info in flavors: | |
| if tp == 'TEXT': | |
| on = 1 | |
| break | |
| else: | |
| on = 0 | |
| if on <> self.pastegroup_on: | |
| self.pasteitem.enable(on) | |
| self.pastegroup_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: | |
| path = EasyDialogs.AskFileForOpen(typeList=('TEXT',)) | |
| if not path: | |
| return | |
| 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: %r" % (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 | |
| self._quit() | |
| # | |
| # 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): | |
| if self.active: | |
| self.active.do_idle() | |
| else: | |
| Qd.SetCursor(Qd.GetQDGlobalsArrow()) | |
| def main(): | |
| App = Ped() | |
| App.mainloop() | |
| if __name__ == '__main__': | |
| main() |