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Add caching for tab sizes

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Jay Kamat 2017-10-14 17:49:27 -04:00
parent 01d2654c23
commit 08b562ea0c
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GPG Key ID: 5D2E399600F4F7B5
1 changed files with 11 additions and 4 deletions
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15
qutebrowser/mainwindow/tabwidget.py
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@ -424,7 +424,7 @@ class TabBar(QTabBar):
return return
super().mousePressEvent(e) super().mousePressEvent(e)
def minimumTabSizeHint(self, index, ellipsis: bool = True): def minimumTabSizeHint(self, index, ellipsis: bool = True) -> QSize:
"""Set the minimum tab size to indicator/icon/... text. """Set the minimum tab size to indicator/icon/... text.
Args: Args:
@ -434,11 +434,18 @@ class TabBar(QTabBar):
Return: Return:
A QSize of the smallest tab size we can make. A QSize of the smallest tab size we can make.
""" """
text = '\u2026' if ellipsis else self.tabText(index) return self.__minimumTabSizeHintHelper(self.tabText(index),
self.tabIcon(index), ellipsis)
@functools.lru_cache(maxsize=100)
def __minimumTabSizeHintHelper(self, tab_text: str,
icon,
ellipsis: bool) -> QSize:
"""Helper function to cache tab results."""
text = '\u2026' if ellipsis else tab_text
# Don't ever shorten if text is shorter than the ellipsis # Don't ever shorten if text is shorter than the ellipsis
text_width = min(self.fontMetrics().width(text), text_width = min(self.fontMetrics().width(text),
self.fontMetrics().width(self.tabText(index))) self.fontMetrics().width(tab_text))
icon = self.tabIcon(index)
padding = config.val.tabs.padding padding = config.val.tabs.padding
indicator_padding = config.val.tabs.indicator_padding indicator_padding = config.val.tabs.indicator_padding
padding_h = padding.left + padding.right padding_h = padding.left + padding.right