cpython/Mac/Demo/waste/htmled.py

831 lines
25 KiB
Python

# 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
from Carbon import Fm
import waste
import WASTEconst
from Carbon import Scrap
import os
import EasyDialogs
import macfs
import string
import htmllib
WATCH = Qd.GetCursor(4).data
LEFTMARGIN=0
UNDOLABELS = [ # Indexed by WEGetUndoInfo() value
None, "", "typing", "Cut", "Paste", "Clear", "Drag", "Style"]
# Style and size menu. Note that style order is important (tied to bit values)
STYLES = [
("Bold", "B"), ("Italic", "I"), ("Underline", "U"), ("Outline", "O"),
("Shadow", ""), ("Condensed", ""), ("Extended", "")
]
SIZES = [ 9, 10, 12, 14, 18, 24]
# Sizes for HTML tag types
HTML_SIZE={
'h1': 18,
'h2': 14
}
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 = LEFTMARGIN, 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)
flags = WASTEconst.weDoAutoScroll | WASTEconst.weDoOutlineHilite | \
WASTEconst.weDoMonoStyled | WASTEconst.weDoUndo
self.ted = waste.WENew(dr, vr, flags)
self.ted.WEInstallTabHooks()
style, soup = self.getstylesoup(self.path)
self.ted.WEInsert(data, style, soup)
self.ted.WESetSelection(0,0)
self.ted.WECalText()
self.ted.WEResetModCount()
w.DrawGrowIcon()
self.scrollbars()
self.do_postopen()
self.do_activate(1, None)
def getstylesoup(self, pathname):
if not pathname:
return None, None
oldrf = Res.CurResFile()
try:
rf = Res.FSpOpenResFile(self.path, 1)
except Res.Error:
return None, None
try:
hstyle = Res.Get1Resource('styl', 128)
hstyle.DetachResource()
except Res.Error:
hstyle = None
try:
hsoup = Res.Get1Resource('SOUP', 128)
hsoup.DetachResource()
except Res.Error:
hsoup = None
Res.CloseResFile(rf)
Res.UseResFile(oldrf)
return hstyle, hsoup
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.GetQDGlobalsArrow())
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])
return vx, vy
def scrollbar_callback(self, which, what, value):
if which == 'y':
#
# "line" size is minimum of top and bottom line size
#
topline_off,dummy = self.ted.WEGetOffset((1,1))
topline_num = self.ted.WEOffsetToLine(topline_off)
toplineheight = self.ted.WEGetHeight(topline_num, topline_num+1)
botlinepos = self.ted.WEGetViewRect()[3]
botline_off, dummy = self.ted.WEGetOffset((1, botlinepos-1))
botline_num = self.ted.WEOffsetToLine(botline_off)
botlineheight = self.ted.WEGetHeight(botline_num, botline_num+1)
if botlineheight == 0:
botlineheight = self.ted.WEGetHeight(botline_num-1, botline_num)
if botlineheight < toplineheight:
lineheight = botlineheight
else:
lineheight = toplineheight
if lineheight <= 0:
lineheight = 1
#
# Now do the command.
#
if what == 'set':
height = self.ted.WEGetHeight(0, 0x3fffffff)
cur = self.getscrollbarvalues()[1]
delta = (cur-value)*height/32767
if what == '-':
delta = lineheight
elif what == '--':
delta = (self.ted.WEGetViewRect()[3]-lineheight)
if delta <= 0:
delta = lineheight
elif what == '+':
delta = -lineheight
elif what == '++':
delta = -(self.ted.WEGetViewRect()[3]-lineheight)
if delta >= 0:
delta = -lineheight
self.ted.WEScroll(0, 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
self.ted.WEScroll(dx, dy)
elif b < vb:
self.ted.WEScroll(0, vb-b)
def do_activate(self, onoff, evt):
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.updatescrollbars()
self.parent.updatemenubar()
def close(self):
if self.ted.WEGetModCount():
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
#
# First save data
#
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()
#
# Now save style and soup
#
oldresfile = Res.CurResFile()
try:
rf = Res.FSpOpenResFile(self.path, 3)
except Res.Error:
Res.FSpCreateResFile(self.path, '????', 'TEXT', macfs.smAllScripts)
rf = Res.FSpOpenResFile(self.path, 3)
styles = Res.Resource('')
soup = Res.Resource('')
self.ted.WECopyRange(0, 0x3fffffff, None, styles, soup)
styles.AddResource('styl', 128, '')
soup.AddResource('SOUP', 128, '')
Res.CloseResFile(rf)
Res.UseResFile(oldresfile)
self.ted.WEResetModCount()
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_insert(self, fp):
self.ted.WESelView()
data = fp.read()
self.ted.WEInsert(data, None, None)
self.updatescrollbars()
self.parent.updatemenubar()
def menu_insert_html(self, fp):
import htmllib
import formatter
f = formatter.AbstractFormatter(self)
# Remember where we are, and don't update
Qd.SetCursor(WATCH)
start, dummy = self.ted.WEGetSelection()
self.ted.WEFeatureFlag(WASTEconst.weFInhibitRecal, 1)
self.html_init()
p = MyHTMLParser(f)
p.feed(fp.read())
# Restore updating, recalc, set focus
dummy, end = self.ted.WEGetSelection()
self.ted.WECalText()
self.ted.WESetSelection(start, end)
self.ted.WESelView()
self.ted.WEFeatureFlag(WASTEconst.weFInhibitRecal, 0)
self.wid.InvalWindowRect(self.ted.WEGetViewRect())
self.updatescrollbars()
self.parent.updatemenubar()
def menu_cut(self):
self.ted.WESelView()
if hasattr(Scrap, 'ZeroScrap'):
Scrap.ZeroScrap()
else:
Scrap.ClearCurrentScrap()
self.ted.WECut()
self.updatescrollbars()
self.parent.updatemenubar()
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()
def menu_clear(self):
self.ted.WESelView()
self.ted.WEDelete()
self.updatescrollbars()
self.parent.updatemenubar()
def menu_undo(self):
self.ted.WEUndo()
self.updatescrollbars()
self.parent.updatemenubar()
def menu_setfont(self, font):
font = Fm.GetFNum(font)
self.mysetstyle(WASTEconst.weDoFont, (font, 0, 0, (0,0,0)))
self.parent.updatemenubar()
def menu_modface(self, face):
self.mysetstyle(WASTEconst.weDoFace|WASTEconst.weDoToggleFace,
(0, face, 0, (0,0,0)))
def menu_setface(self, face):
self.mysetstyle(WASTEconst.weDoFace|WASTEconst.weDoReplaceFace,
(0, face, 0, (0,0,0)))
def menu_setsize(self, size):
self.mysetstyle(WASTEconst.weDoSize, (0, 0, size, (0,0,0)))
def menu_incsize(self, size):
self.mysetstyle(WASTEconst.weDoAddSize, (0, 0, size, (0,0,0)))
def mysetstyle(self, which, how):
self.ted.WESelView()
self.ted.WESetStyle(which, how)
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
def getruninfo(self):
all = (WASTEconst.weDoFont | WASTEconst.weDoFace | WASTEconst.weDoSize)
dummy, mode, (font, face, size, color) = self.ted.WEContinuousStyle(all)
if not (mode & WASTEconst.weDoFont):
font = None
else:
font = Fm.GetFontName(font)
if not (mode & WASTEconst.weDoFace): fact = None
if not (mode & WASTEconst.weDoSize): size = None
return font, face, size
#
# Methods for writer class for html formatter
#
def html_init(self):
self.html_font = [12, 0, 0, 0]
self.html_style = 0
self.html_color = (0,0,0)
self.new_font(self.html_font)
def new_font(self, font):
if font == None:
font = (12, 0, 0, 0)
font = map(lambda x:x, font)
for i in range(len(font)):
if font[i] == None:
font[i] = self.html_font[i]
[size, italic, bold, tt] = font
self.html_font = font[:]
if tt:
font = Fm.GetFNum('Courier')
else:
font = Fm.GetFNum('Times')
if HTML_SIZE.has_key(size):
size = HTML_SIZE[size]
else:
size = 12
face = 0
if bold: face = face | 1
if italic: face = face | 2
face = face | self.html_style
self.ted.WESetStyle(WASTEconst.weDoFont | WASTEconst.weDoFace |
WASTEconst.weDoSize | WASTEconst.weDoColor,
(font, face, size, self.html_color))
def new_margin(self, margin, level):
self.ted.WEInsert('[Margin %s %s]'%(margin, level), None, None)
def new_spacing(self, spacing):
self.ted.WEInsert('[spacing %s]'%spacing, None, None)
def new_styles(self, styles):
self.html_style = 0
self.html_color = (0,0,0)
if 'anchor' in styles:
self.html_style = self.html_style | 4
self.html_color = (0xffff, 0, 0)
self.new_font(self.html_font)
def send_paragraph(self, blankline):
self.ted.WEInsert('\r'*(blankline+1), None, None)
def send_line_break(self):
self.ted.WEInsert('\r', None, None)
def send_hor_rule(self, *args, **kw):
# Ignore ruler options, for now
dummydata = Res.Resource('')
self.ted.WEInsertObject('rulr', dummydata, (0,0))
def send_label_data(self, data):
self.ted.WEInsert(data, None, None)
def send_flowing_data(self, data):
self.ted.WEInsert(data, None, None)
def send_literal_data(self, data):
data = string.replace(data, '\n', '\r')
data = string.expandtabs(data)
self.ted.WEInsert(data, None, None)
class Wed(Application):
def __init__(self):
Application.__init__(self)
self.num = 0
self.active = None
self.updatemenubar()
waste.STDObjectHandlers()
# Handler for horizontal ruler
waste.WEInstallObjectHandler('rulr', 'new ', self.newRuler)
waste.WEInstallObjectHandler('rulr', 'draw', self.drawRuler)
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.insertitem = MenuItem(m, "Insert plaintext...", "", self.insertfile)
self.htmlitem = MenuItem(m, "Insert HTML...", "", self.inserthtml)
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)
self.makefontmenu()
# Groups of items enabled together:
self.windowgroup = [self.closeitem, self.saveitem, self.saveasitem,
self.editmenu, self.fontmenu, self.facemenu, self.sizemenu,
self.insertitem]
self.focusgroup = [self.cutitem, self.copyitem, self.clearitem]
self.windowgroup_on = -1
self.focusgroup_on = -1
self.pastegroup_on = -1
self.undo_label = "never"
self.ffs_values = ()
def makefontmenu(self):
self.fontmenu = Menu(self.menubar, "Font")
self.fontnames = getfontnames()
self.fontitems = []
for n in self.fontnames:
m = MenuItem(self.fontmenu, n, "", self.selfont)
self.fontitems.append(m)
self.facemenu = Menu(self.menubar, "Style")
self.faceitems = []
for n, shortcut in STYLES:
m = MenuItem(self.facemenu, n, shortcut, self.selface)
self.faceitems.append(m)
self.facemenu.addseparator()
self.faceitem_normal = MenuItem(self.facemenu, "Normal", "N",
self.selfacenormal)
self.sizemenu = Menu(self.menubar, "Size")
self.sizeitems = []
for n in SIZES:
m = MenuItem(self.sizemenu, repr(n), "", self.selsize)
self.sizeitems.append(m)
self.sizemenu.addseparator()
self.sizeitem_bigger = MenuItem(self.sizemenu, "Bigger", "+",
self.selsizebigger)
self.sizeitem_smaller = MenuItem(self.sizemenu, "Smaller", "-",
self.selsizesmaller)
def selfont(self, id, item, *rest):
if self.active:
font = self.fontnames[item-1]
self.active.menu_setfont(font)
else:
EasyDialogs.Message("No active window?")
def selface(self, id, item, *rest):
if self.active:
face = (1<<(item-1))
self.active.menu_modface(face)
else:
EasyDialogs.Message("No active window?")
def selfacenormal(self, *rest):
if self.active:
self.active.menu_setface(0)
else:
EasyDialogs.Message("No active window?")
def selsize(self, id, item, *rest):
if self.active:
size = SIZES[item-1]
self.active.menu_setsize(size)
else:
EasyDialogs.Message("No active window?")
def selsizebigger(self, *rest):
if self.active:
self.active.menu_incsize(2)
else:
EasyDialogs.Message("No active window?")
def selsizesmaller(self, *rest):
if self.active:
self.active.menu_incsize(-2)
else:
EasyDialogs.Message("No active window?")
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 self.updatefontmenus():
changed = 1
if changed:
DrawMenuBar()
def updatefontmenus(self):
info = self.active.getruninfo()
if info == self.ffs_values:
return 0
# Remove old checkmarks
if self.ffs_values == ():
self.ffs_values = (None, None, None)
font, face, size = self.ffs_values
if font <> None:
fnum = self.fontnames.index(font)
self.fontitems[fnum].check(0)
if face <> None:
for i in range(len(self.faceitems)):
if face & (1<<i):
self.faceitems[i].check(0)
if size <> None:
for i in range(len(self.sizeitems)):
if SIZES[i] == size:
self.sizeitems[i].check(0)
self.ffs_values = info
# Set new checkmarks
font, face, size = self.ffs_values
if font <> None:
fnum = self.fontnames.index(font)
self.fontitems[fnum].check(1)
if face <> None:
for i in range(len(self.faceitems)):
if face & (1<<i):
self.faceitems[i].check(1)
if size <> None:
for i in range(len(self.sizeitems)):
if SIZES[i] == size:
self.sizeitems[i].check(1)
# Set outline/normal for sizes
if font:
exists = getfontsizes(font, SIZES)
for i in range(len(self.sizeitems)):
if exists[i]:
self.sizeitems[i].setstyle(0)
else:
self.sizeitems[i].setstyle(8)
#
# 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:
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 = WasteWindow(self)
w.open(path, name, data)
self.num = self.num + 1
def insertfile(self, *args):
if self.active:
path = EasyDialogs.AskFileForOpen(typeList=('TEXT',))
if not path:
return
try:
fp = open(path, 'rb') # NOTE binary, we need cr as end-of-line
except IOError, arg:
EasyDialogs.Message("IOERROR: %r" % (args,))
return
self.active.menu_insert(fp)
else:
EasyDialogs.Message("No active window?")
def inserthtml(self, *args):
if self.active:
path = EasyDialogs.AskFileForOpen(typeList=('TEXT',))
if not path:
return
try:
fp = open(path, 'r')
except IOError, arg:
EasyDialogs.Message("IOERROR: %r" % (arg,))
return
self.active.menu_insert_html(fp)
else:
EasyDialogs.Message("No active window?")
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.GetQDGlobalsArrow())
def newRuler(self, obj):
"""Insert a new ruler. Make it as wide as the window minus 2 pxls"""
ted = obj.WEGetObjectOwner()
l, t, r, b = ted.WEGetDestRect()
return r-l, 4
def drawRuler(self, (l, t, r, b), obj):
y = (t+b)/2
Qd.MoveTo(l+2, y)
Qd.LineTo(r-2, y)
return 0
class MyHTMLParser(htmllib.HTMLParser):
def anchor_bgn(self, href, name, type):
self.anchor = href
if self.anchor:
self.anchorlist.append(href)
self.formatter.push_style('anchor')
def anchor_end(self):
if self.anchor:
self.anchor = None
self.formatter.pop_style()
def getfontnames():
names = []
for i in range(256):
n = Fm.GetFontName(i)
if n: names.append(n)
return names
def getfontsizes(name, sizes):
exist = []
num = Fm.GetFNum(name)
for sz in sizes:
if Fm.RealFont(num, sz):
exist.append(1)
else:
exist.append(0)
return exist
def main():
App = Wed()
App.mainloop()
if __name__ == '__main__':
main()