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Diffstat (limited to 'silx/gui/widgets/FlowLayout.py')
| -rw-r--r-- | silx/gui/widgets/FlowLayout.py | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/silx/gui/widgets/FlowLayout.py b/silx/gui/widgets/FlowLayout.py deleted file mode 100644 index 3c4c9dd..0000000 --- a/silx/gui/widgets/FlowLayout.py +++ /dev/null @@ -1,177 +0,0 @@ -# coding: utf-8 -# /*########################################################################## -# -# Copyright (c) 2018 European Synchrotron Radiation Facility -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to deal -# in the Software without restriction, including without limitation the rights -# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -# copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -# THE SOFTWARE. -# -# ###########################################################################*/ -"""This module provides a flow layout for QWidget: :class:`FlowLayout`. -""" - -from __future__ import division - -__authors__ = ["T. Vincent"] -__license__ = "MIT" -__date__ = "20/07/2018" - - -from .. import qt - - -class FlowLayout(qt.QLayout): - """Layout widgets on (possibly) multiple lines in the available width. - - See Qt :class:`QLayout` for API documentation. - - Adapted from C++ `Qt FlowLayout example - <http://doc.qt.io/qt-5/qtwidgets-layouts-flowlayout-example.html>`_ - - :param QWidget parent: See :class:`QLayout` - """ - - def __init__(self, parent=None): - super(FlowLayout, self).__init__(parent) - self._items = [] - self._horizontalSpacing = -1 - self._verticalSpacing = -1 - - def addItem(self, item): - self._items.append(item) - - def count(self): - return len(self._items) - - def itemAt(self, index): - if 0 <= index < len(self._items): - return self._items[index] - else: - return None - - def takeAt(self, index): - if 0 <= index < len(self._items): - return self._items.pop(index) - else: - return None - - def expandingDirections(self): - return qt.Qt.Orientations() - - def hasHeightForWidth(self): - return True - - def heightForWidth(self, width): - return self._layout(qt.QRect(0, 0, width, 0), test=True) - - def setGeometry(self, rect): - super(FlowLayout, self).setGeometry(rect) - self._layout(rect) - - def sizeHint(self): - return self.minimumSize() - - def minimumSize(self): - size = qt.QSize() - for item in self._items: - size = size.expandedTo(item.minimumSize()) - - left, top, right, bottom = self.getContentsMargins() - size += qt.QSize(left + right, top + bottom) - return size - - def _layout(self, rect, test=False): - left, top, right, bottom = self.getContentsMargins() - effectiveRect = rect.adjusted(left, top, -right, -bottom) - x, y = effectiveRect.x(), effectiveRect.y() - lineHeight = 0 - - for item in self._items: - widget = item.widget() - spaceX = self.horizontalSpacing() - if spaceX == -1: - spaceX = widget.style().layoutSpacing( - qt.QSizePolicy.PushButton, - qt.QSizePolicy.PushButton, - qt.Qt.Horizontal) - spaceY = self.verticalSpacing() - if spaceY == -1: - spaceY = widget.style().layoutSpacing( - qt.QSizePolicy.PushButton, - qt.QSizePolicy.PushButton, - qt.Qt.Vertical) - - nextX = x + item.sizeHint().width() + spaceX - if (nextX - spaceX) > effectiveRect.right() and lineHeight > 0: - x = effectiveRect.x() - y += lineHeight + spaceY - nextX = x + item.sizeHint().width() + spaceX - lineHeight = 0 - - if not test: - item.setGeometry(qt.QRect(qt.QPoint(x, y), item.sizeHint())) - - x = nextX - lineHeight = max(lineHeight, item.sizeHint().height()) - - return y + lineHeight - rect.y() + bottom - - def setHorizontalSpacing(self, spacing): - """Set the horizontal spacing between widgets laid out side by side - - :param int spacing: - """ - self._horizontalSpacing = spacing - self.update() - - def horizontalSpacing(self): - """Returns the horizontal spacing between widgets laid out side by side - - :rtype: int - """ - if self._horizontalSpacing >= 0: - return self._horizontalSpacing - else: - return self._smartSpacing(qt.QStyle.PM_LayoutHorizontalSpacing) - - def setVerticalSpacing(self, spacing): - """Set the vertical spacing between lines - - :param int spacing: - """ - self._verticalSpacing = spacing - self.update() - - def verticalSpacing(self): - """Returns the vertical spacing between lines - - :rtype: int - """ - if self._verticalSpacing >= 0: - return self._verticalSpacing - else: - return self._smartSpacing(qt.QStyle.PM_LayoutVerticalSpacing) - - def _smartSpacing(self, pm): - parent = self.parent() - if parent is None: - return -1 - if parent.isWidgetType(): - return parent.style().pixelMetric(pm, None, parent) - else: - return parent.spacing() |