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361 lines
8.3 KiB
Python
361 lines
8.3 KiB
Python
# A minimal text editor.
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#
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# To be done:
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# - Update viewrect after resize
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# - Handle horizontal scrollbar correctly
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# - Functionality: find, etc.
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from Carbon.Menu import DrawMenuBar
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from FrameWork import *
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from Carbon import Win
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from Carbon import Qd
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from Carbon import TE
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from Carbon import Scrap
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import os
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import macfs
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class TEWindow(ScrolledWindow):
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def open(self, path, name, data):
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self.path = path
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self.name = name
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r = windowbounds(400, 400)
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w = Win.NewWindow(r, name, 1, 0, -1, 1, 0)
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self.wid = w
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x0, y0, x1, y1 = self.wid.GetWindowPort().portRect
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x0 = x0 + 4
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y0 = y0 + 4
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x1 = x1 - 20
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y1 = y1 - 20
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vr = dr = x0, y0, x1, y1
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##vr = 4, 0, r[2]-r[0]-15, r[3]-r[1]-15
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##dr = (0, 0, vr[2], 0)
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Qd.SetPort(w)
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Qd.TextFont(4)
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Qd.TextSize(9)
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self.ted = TE.TENew(dr, vr)
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self.ted.TEAutoView(1)
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self.ted.TESetText(data)
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w.DrawGrowIcon()
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self.scrollbars()
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self.changed = 0
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self.do_postopen()
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self.do_activate(1, None)
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def do_idle(self):
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self.ted.TEIdle()
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def getscrollbarvalues(self):
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dr = self.ted.destRect
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vr = self.ted.viewRect
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height = self.ted.nLines * self.ted.lineHeight
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vx = self.scalebarvalue(dr[0], dr[2]-dr[0], vr[0], vr[2])
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vy = self.scalebarvalue(dr[1], dr[1]+height, vr[1], vr[3])
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print dr, vr, height, vx, vy
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return None, vy
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def scrollbar_callback(self, which, what, value):
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if which == 'y':
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if what == 'set':
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height = self.ted.nLines * self.ted.lineHeight
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cur = self.getscrollbarvalues()[1]
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delta = (cur-value)*height/32767
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if what == '-':
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delta = self.ted.lineHeight
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elif what == '--':
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delta = (self.ted.viewRect[3]-self.ted.lineHeight)
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if delta <= 0:
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delta = self.ted.lineHeight
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elif what == '+':
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delta = -self.ted.lineHeight
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elif what == '++':
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delta = -(self.ted.viewRect[3]-self.ted.lineHeight)
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if delta >= 0:
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delta = -self.ted.lineHeight
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self.ted.TEPinScroll(0, delta)
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print 'SCROLL Y', delta
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else:
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pass # No horizontal scrolling
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def do_activate(self, onoff, evt):
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print "ACTIVATE", onoff
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ScrolledWindow.do_activate(self, onoff, evt)
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if onoff:
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self.ted.TEActivate()
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self.parent.active = self
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self.parent.updatemenubar()
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else:
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self.ted.TEDeactivate()
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def do_update(self, wid, event):
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Qd.EraseRect(wid.GetWindowPort().portRect)
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self.ted.TEUpdate(wid.GetWindowPort().portRect)
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self.updatescrollbars()
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def do_contentclick(self, local, modifiers, evt):
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shifted = (modifiers & 0x200)
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self.ted.TEClick(local, shifted)
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self.updatescrollbars()
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self.parent.updatemenubar()
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def do_char(self, ch, event):
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self.ted.TESelView()
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self.ted.TEKey(ord(ch))
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self.changed = 1
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self.updatescrollbars()
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self.parent.updatemenubar()
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def close(self):
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if self.changed:
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save = EasyDialogs.AskYesNoCancel('Save window "%s" before closing?'%self.name, 1)
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if save > 0:
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self.menu_save()
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elif save < 0:
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return
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if self.parent.active == self:
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self.parent.active = None
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self.parent.updatemenubar()
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del self.ted
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self.do_postclose()
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def menu_save(self):
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if not self.path:
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self.menu_save_as()
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return # Will call us recursively
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print 'Saving to ', self.path
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dhandle = self.ted.TEGetText()
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data = dhandle.data
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fp = open(self.path, 'wb') # NOTE: wb, because data has CR for end-of-line
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fp.write(data)
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if data[-1] <> '\r': fp.write('\r')
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fp.close()
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self.changed = 0
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def menu_save_as(self):
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fss, ok = macfs.StandardPutFile('Save as:')
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if not ok: return
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self.path = fss.as_pathname()
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self.name = os.path.split(self.path)[-1]
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self.wid.SetWTitle(self.name)
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self.menu_save()
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def menu_cut(self):
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self.ted.TESelView()
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self.ted.TECut()
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if hasattr(Scrap, 'ZeroScrap'):
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Scrap.ZeroScrap()
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else:
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Scrap.ClearCurrentScrap()
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TE.TEToScrap()
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self.updatescrollbars()
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self.parent.updatemenubar()
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self.changed = 1
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def menu_copy(self):
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self.ted.TECopy()
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if hasattr(Scrap, 'ZeroScrap'):
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Scrap.ZeroScrap()
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else:
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Scrap.ClearCurrentScrap()
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TE.TEToScrap()
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self.updatescrollbars()
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self.parent.updatemenubar()
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def menu_paste(self):
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TE.TEFromScrap()
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self.ted.TESelView()
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self.ted.TEPaste()
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self.updatescrollbars()
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self.parent.updatemenubar()
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self.changed = 1
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def menu_clear(self):
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self.ted.TESelView()
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self.ted.TEDelete()
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self.updatescrollbars()
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self.parent.updatemenubar()
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self.changed = 1
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def have_selection(self):
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return (self.ted.selStart < self.ted.selEnd)
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class Ped(Application):
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def __init__(self):
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Application.__init__(self)
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self.num = 0
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self.active = None
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self.updatemenubar()
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def makeusermenus(self):
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self.filemenu = m = Menu(self.menubar, "File")
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self.newitem = MenuItem(m, "New window", "N", self.open)
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self.openitem = MenuItem(m, "Open...", "O", self.openfile)
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self.closeitem = MenuItem(m, "Close", "W", self.closewin)
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m.addseparator()
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self.saveitem = MenuItem(m, "Save", "S", self.save)
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self.saveasitem = MenuItem(m, "Save as...", "", self.saveas)
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m.addseparator()
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self.quititem = MenuItem(m, "Quit", "Q", self.quit)
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self.editmenu = m = Menu(self.menubar, "Edit")
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self.undoitem = MenuItem(m, "Undo", "Z", self.undo)
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self.cutitem = MenuItem(m, "Cut", "X", self.cut)
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self.copyitem = MenuItem(m, "Copy", "C", self.copy)
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self.pasteitem = MenuItem(m, "Paste", "V", self.paste)
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self.clearitem = MenuItem(m, "Clear", "", self.clear)
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# Not yet implemented:
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self.undoitem.enable(0)
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# Groups of items enabled together:
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self.windowgroup = [self.closeitem, self.saveitem, self.saveasitem, self.editmenu]
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self.focusgroup = [self.cutitem, self.copyitem, self.clearitem]
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self.windowgroup_on = -1
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self.focusgroup_on = -1
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self.pastegroup_on = -1
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def updatemenubar(self):
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changed = 0
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on = (self.active <> None)
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if on <> self.windowgroup_on:
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for m in self.windowgroup:
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m.enable(on)
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self.windowgroup_on = on
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changed = 1
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if on:
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# only if we have an edit menu
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on = self.active.have_selection()
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if on <> self.focusgroup_on:
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for m in self.focusgroup:
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m.enable(on)
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self.focusgroup_on = on
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changed = 1
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if hasattr(Scrap, 'InfoScrap'):
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on = (Scrap.InfoScrap()[0] <> 0)
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else:
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flavors = Scrap.GetCurrentScrap().GetScrapFlavorInfoList()
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for tp, info in flavors:
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if tp == 'TEXT':
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on = 1
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break
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else:
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on = 0
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if on <> self.pastegroup_on:
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self.pasteitem.enable(on)
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self.pastegroup_on = on
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changed = 1
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if changed:
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DrawMenuBar()
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#
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# Apple menu
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#
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def do_about(self, id, item, window, event):
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EasyDialogs.Message("A simple single-font text editor")
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#
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# File menu
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#
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def open(self, *args):
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self._open(0)
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def openfile(self, *args):
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self._open(1)
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def _open(self, askfile):
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if askfile:
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fss, ok = macfs.StandardGetFile('TEXT')
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if not ok:
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return
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path = fss.as_pathname()
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name = os.path.split(path)[-1]
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try:
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fp = open(path, 'rb') # NOTE binary, we need cr as end-of-line
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data = fp.read()
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fp.close()
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except IOError, arg:
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EasyDialogs.Message("IOERROR: "+`arg`)
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return
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else:
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path = None
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name = "Untitled %d"%self.num
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data = ''
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w = TEWindow(self)
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w.open(path, name, data)
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self.num = self.num + 1
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def closewin(self, *args):
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if self.active:
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self.active.close()
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else:
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EasyDialogs.Message("No active window?")
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def save(self, *args):
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if self.active:
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self.active.menu_save()
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else:
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EasyDialogs.Message("No active window?")
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def saveas(self, *args):
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if self.active:
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self.active.menu_save_as()
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else:
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EasyDialogs.Message("No active window?")
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def quit(self, *args):
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for w in self._windows.values():
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w.close()
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if self._windows:
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return
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self._quit()
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#
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# Edit menu
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#
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def undo(self, *args):
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pass
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def cut(self, *args):
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if self.active:
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self.active.menu_cut()
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else:
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EasyDialogs.Message("No active window?")
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def copy(self, *args):
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if self.active:
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self.active.menu_copy()
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else:
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EasyDialogs.Message("No active window?")
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def paste(self, *args):
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if self.active:
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self.active.menu_paste()
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else:
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EasyDialogs.Message("No active window?")
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def clear(self, *args):
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if self.active:
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self.active.menu_clear()
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else:
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EasyDialogs.Message("No active window?")
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#
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# Other stuff
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#
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def idle(self, *args):
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if self.active:
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self.active.do_idle()
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else:
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Qd.SetCursor(Qd.qd.arrow)
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def main():
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App = Ped()
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App.mainloop()
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if __name__ == '__main__':
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main()
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