def __init__(self, editor):
self.editor = editor
self.cursorItem = CursorLine(editor.canvas)
self.timer = Timer(self.timerEvent)
self.shown = True
self.word = None
self.charIx = 0
self.timer.count(cursorOnTime)
def __init__(self, editor):
self.editor = editor
self.cursorItem = CursorLine(editor.canvas)
self.timer = Timer(self.timerEvent)
self.shown = True
self.word = None
self.charIx = 0
self.timer.count(cursorOnTime)
class EdCursor:
"""The cursor marks a particular Word object and a particular
character position within that word.
"""
def __init__(self, editor):
self.editor = editor
self.cursorItem = CursorLine(editor.canvas)
self.timer = Timer(self.timerEvent)
self.shown = True
self.word = None
self.charIx = 0
self.timer.count(cursorOnTime)
def stop(self):
"""Stop the counter
"""
self.timer.stop()
def timerEvent(self):
if self.shown:
self.cursorItem.hide()
self.timer.count(cursorOnTime)
self.shown = False
else:
self.cursorItem.show()
self.timer.count(cursorOffTime)
self.shown = True
def setPos(self, word, cx):
"""Set the cursor to a particular word/character.
It also forces the cursor to be in 'shown' state.
"""
# Special case: when leaving an empty word that is not the single
# word of an empty paragraph, that word should be deleted.
if (self.word != word) and self.word and \
(self.word.string == u"") and self.word.tline:
wList = self.word.tline.twords
if (len(wList) > 1):
ix = wList.index(self.word)
t = self.word.tline
self.word.delete()
del(wList[ix])
self.editor.rsubject.renderShortened(wList[0])
self.word = word
self.charIx = cx
# Get editor view coordinates
x, y, h = word.getXYH(cx)
self.cursorItem.set(x, y, h)
# Force cursor shown
self.shown = False # so that the next switch is to 'shown'
self.cursorItem.show()
self.editor.canvas.ensureVisible(self.cursorItem, 10)
# Set gui 'style' buttons according to paragraph style
#NOTE: I hope this is the only place where this must be done!
self.editor.canvas.signal("currentStyle", self.word.tline.para.align)
def getPos(self):
"""Return cursor position as (word, charIx) pair.
"""
return (self.word, self.charIx)
def step(self, forward):
"""Move the cursor one character position.
"""
w = self.word
if forward:
c = self.charIx + 1
if (c > len(w.string)):
# Move to next word
wList = w.tline.twords
wx = wList.index(w) + 1
if (wx >= len(wList)):
# Move to next line
tl = self.editor.rsubject.nextLine(w.tline)
if not tl: return False
w = tl.twords[0]
else:
w = wList[wx]
c = 0
else:
# backward
c = self.charIx - 1
if (c < 0):
# Move to previous word
wList = w.tline.twords
wx = wList.index(w) - 1
if (wx < 0):
# Move to previous line
tl = self.editor.rsubject.previousLine(w.tline)
if not tl: return False
w = tl.twords[-1]
else:
w = wList[wx]
c = len(w.string)
self.setPos(w, c)
return True
def lineStep(self, x, up):
"""Move the cursor up or down a line.
It tries to retain the x-coordinate.
"""
if up:
# Go to previous line
tl = self.editor.rsubject.previousLine(self.word.tline)
if not tl: return
else:
# Go to next line
tl = self.editor.rsubject.nextLine(self.word.tline)
if not tl: return
w, c = self.editor.getXPos(tl, x)
self.setPos(w, c)
class EdCursor:
"""The cursor marks a particular Word object and a particular
character position within that word.
"""
def __init__(self, editor):
self.editor = editor
self.cursorItem = CursorLine(editor.canvas)
self.timer = Timer(self.timerEvent)
self.shown = True
self.word = None
self.charIx = 0
self.timer.count(cursorOnTime)
def stop(self):
"""Stop the counter
"""
self.timer.stop()
def timerEvent(self):
if self.shown:
self.cursorItem.hide()
self.timer.count(cursorOnTime)
self.shown = False
else:
self.cursorItem.show()
self.timer.count(cursorOffTime)
self.shown = True
def setPos(self, word, cx):
"""Set the cursor to a particular word/character.
It also forces the cursor to be in 'shown' state.
"""
# Special case: when leaving an empty word that is not the single
# word of an empty paragraph, that word should be deleted.
if (self.word != word) and self.word and \
(self.word.string == u"") and self.word.tline:
wList = self.word.tline.twords
if (len(wList) > 1):
ix = wList.index(self.word)
t = self.word.tline
self.word.delete()
del (wList[ix])
self.editor.rsubject.renderShortened(wList[0])
self.word = word
self.charIx = cx
# Get editor view coordinates
x, y, h = word.getXYH(cx)
self.cursorItem.set(x, y, h)
# Force cursor shown
self.shown = False # so that the next switch is to 'shown'
self.cursorItem.show()
self.editor.canvas.ensureVisible(self.cursorItem, 10)
# Set gui 'style' buttons according to paragraph style
#NOTE: I hope this is the only place where this must be done!
self.editor.canvas.signal("currentStyle", self.word.tline.para.align)
def getPos(self):
"""Return cursor position as (word, charIx) pair.
"""
return (self.word, self.charIx)
def step(self, forward):
"""Move the cursor one character position.
"""
w = self.word
if forward:
c = self.charIx + 1
if (c > len(w.string)):
# Move to next word
wList = w.tline.twords
wx = wList.index(w) + 1
if (wx >= len(wList)):
# Move to next line
tl = self.editor.rsubject.nextLine(w.tline)
if not tl: return False
w = tl.twords[0]
else:
w = wList[wx]
c = 0
else:
# backward
c = self.charIx - 1
if (c < 0):
# Move to previous word
wList = w.tline.twords
wx = wList.index(w) - 1
if (wx < 0):
# Move to previous line
tl = self.editor.rsubject.previousLine(w.tline)
if not tl: return False
w = tl.twords[-1]
else:
w = wList[wx]
c = len(w.string)
self.setPos(w, c)
return True
def lineStep(self, x, up):
"""Move the cursor up or down a line.
It tries to retain the x-coordinate.
"""
if up:
# Go to previous line
tl = self.editor.rsubject.previousLine(self.word.tline)
if not tl: return
else:
# Go to next line
tl = self.editor.rsubject.nextLine(self.word.tline)
if not tl: return
w, c = self.editor.getXPos(tl, x)
self.setPos(w, c)
