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dupeguru/qtlib/column.py

111 lines
4.3 KiB
Python

# Created By: Virgil Dupras
# Created On: 2009-11-25
# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
#
# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.gnu.org/licenses/gpl-3.0.html
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QHeaderView
class Column:
def __init__(
self,
attrname,
defaultWidth,
editor=None,
alignment=Qt.AlignLeft,
cantTruncate=False,
painter=None,
resizeToFit=False,
):
self.attrname = attrname
self.defaultWidth = defaultWidth
self.editor = editor
# See moneyguru #15. Painter attribute was added to allow custom painting of amount value and
# currency information. Can be used as a pattern for custom painting of any column.
self.painter = painter
self.alignment = alignment
# This is to indicate, during printing, that a column can't have its data truncated.
self.cantTruncate = cantTruncate
self.resizeToFit = resizeToFit
class Columns:
def __init__(self, model, columns, headerView):
self.model = model
self._headerView = headerView
self._headerView.setDefaultAlignment(Qt.AlignLeft)
def setspecs(col, modelcol):
modelcol.default_width = col.defaultWidth
modelcol.editor = col.editor
modelcol.painter = col.painter
modelcol.resizeToFit = col.resizeToFit
modelcol.alignment = col.alignment
modelcol.cantTruncate = col.cantTruncate
if columns:
for col in columns:
modelcol = self.model.column_by_name(col.attrname)
setspecs(col, modelcol)
else:
col = Column("", 100)
for modelcol in self.model.column_list:
setspecs(col, modelcol)
self.model.view = self
self._headerView.sectionMoved.connect(self.headerSectionMoved)
self._headerView.sectionResized.connect(self.headerSectionResized)
# See moneyguru #14 and #15. This was added in order to allow automatic resizing of columns.
for column in self.model.column_list:
if column.resizeToFit:
self._headerView.setSectionResizeMode(column.logical_index, QHeaderView.ResizeToContents)
# --- Public
def setColumnsWidth(self, widths):
# `widths` can be None. If it is, then default widths are set.
columns = self.model.column_list
if not widths:
widths = [column.default_width for column in columns]
for column, width in zip(columns, widths):
if width == 0: # column was hidden before.
width = column.default_width
self._headerView.resizeSection(column.logical_index, width)
def setColumnsOrder(self, columnIndexes):
if not columnIndexes:
return
for destIndex, columnIndex in enumerate(columnIndexes):
# moveSection takes 2 visual index arguments, so we have to get our visual index first
visualIndex = self._headerView.visualIndex(columnIndex)
self._headerView.moveSection(visualIndex, destIndex)
# --- Events
def headerSectionMoved(self, logicalIndex, oldVisualIndex, newVisualIndex):
attrname = self.model.column_by_index(logicalIndex).name
self.model.move_column(attrname, newVisualIndex)
def headerSectionResized(self, logicalIndex, oldSize, newSize):
attrname = self.model.column_by_index(logicalIndex).name
self.model.resize_column(attrname, newSize)
# --- model --> view
def restore_columns(self):
columns = self.model.ordered_columns
indexes = [col.logical_index for col in columns]
self.setColumnsOrder(indexes)
widths = [col.width for col in self.model.column_list]
if not any(widths):
widths = None
self.setColumnsWidth(widths)
for column in self.model.column_list:
visible = self.model.column_is_visible(column.name)
self._headerView.setSectionHidden(column.logical_index, not visible)
def set_column_visible(self, colname, visible):
column = self.model.column_by_name(colname)
self._headerView.setSectionHidden(column.logical_index, not visible)