def minimumSize(self):
size = QtCore.QSize()
for item in self.item_list:
size = size.expandedTo(item.minimumSize())
left, top, right, bottom = self.getContentsMargins()
size += QtCore.QSize(left + right, top + bottom)
return size
def _do_layout(self, origin):
left, top, right, bottom = self.getContentsMargins()
width_hint = left + right
height_hint = top + bottom
if self.item_list:
item_size = self.item_list[0].sizeHint()
item_h = item_size.height()
item_w = item_size.width()
multi_row = self.viewport_size.height() - height_hint > item_h
if multi_row:
columns = max(
(self.viewport_size.width() - width_hint) // item_w, 1)
rows = (len(self.item_list) + columns - 1) // columns
else:
columns = len(self.item_list)
rows = 1
width_hint += columns * item_w
height_hint += rows * item_h
self.size_hint = QtCore.QSize(width_hint, height_hint)
if not self.item_list:
return
x = origin.x() + left
y = origin.y() + top
for n, item in enumerate(self.item_list):
i, j = n % columns, n // columns
item.setGeometry(
QtCore.QRect(QtCore.QPoint(x + (i * item_w), y + (j * item_h)),
item_size))
self.scroll_area.set_multi_row(multi_row)
def resizeEvent(self, event):
super(ScrollArea, self).resizeEvent(event)
width = event.size().width()
height = event.size().height()
if not self.multi_row:
scrollbar = self.verticalScrollBar()
width -= scrollbar.width()
scrollbar = self.horizontalScrollBar()
if not scrollbar.isVisible():
height -= scrollbar.height()
self.thumbs.set_viewport_size(QtCore.QSize(width, height))
def __init__(self, scroll_area=None, **kw):
super(ThumbsLayout, self).__init__(**kw)
self.scroll_area = scroll_area
self.item_list = []
self.viewport_size = QtCore.QSize()
self._do_layout(QtCore.QPoint(0, 0))
def sizeHint(self):
h_hdr = self.horizontalHeader()
v_hdr = self.verticalHeader()
return QtCore.QSize(h_hdr.length() + v_hdr.sizeHint().width() + 4,
v_hdr.length() + h_hdr.sizeHint().height() + 4)
def sizeHint(self):
return QtCore.QSize(580, 490)
