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Fix calculation of line number area width not taking line number mapping into account

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This commit is contained in:
Kovid Goyal 2014-01-29 17:28:58 +05:30
parent e26ee89caf
commit 1a095646d3
1 changed files with 22 additions and 9 deletions
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31
src/calibre/gui2/tweak_book/diff/view.py
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@ -45,6 +45,25 @@ def get_theme():
theme = THEMES[default_theme()]
return theme
class LineNumberMap(dict): # {{{
'Map line numbers and keep track of the maximum width of the line numbers'
def __new__(cls):
self = dict.__new__(cls)
self.max_width = 1
return self
def __setitem__(self, k, v):
v = unicode(v)
dict.__setitem__(self, k, v)
self.max_width = max(self.max_width, len(v))
def clear(self):
dict.clear(self)
self.max_width = 1
# }}}
class TextBrowser(PlainTextEdit): # {{{
resized = pyqtSignal()
@ -92,7 +111,7 @@ class TextBrowser(PlainTextEdit): # {{{
pal.setColor(pal.Base, theme_color(theme, 'LineNr', 'bg'))
pal.setColor(pal.Text, theme_color(theme, 'LineNr', 'fg'))
pal.setColor(pal.BrightText, theme_color(theme, 'LineNrC', 'fg'))
self.line_number_map = {}
self.line_number_map = LineNumberMap()
self.search_header_pos = 0
self.changes, self.headers, self.images = [], [], OrderedDict()
self.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
@ -216,13 +235,7 @@ class TextBrowser(PlainTextEdit): # {{{
return self.width() - self.side_margin
def line_number_area_width(self):
digits = 1
limit = max(1, self.blockCount())
while limit >= 10:
limit /= 10
digits += 1
return 8 + self.number_width * digits
return 9 + (self.line_number_map.max_width * self.number_width)
def update_line_number_area(self, rect, dy):
if dy:
@ -270,7 +283,7 @@ class TextBrowser(PlainTextEdit): # {{{
painter.drawText(r.left() + 3, top, r.right(), self.fontMetrics().height(),
Qt.AlignLeft, text)
else:
painter.drawText(r.left(), top, r.right() - 5, self.fontMetrics().height(),
painter.drawText(r.left() + 2, top, r.right() - 5, self.fontMetrics().height(),
Qt.AlignRight, text)
if is_start:
painter.restore()