1# -*- coding: utf-8 -*- 2 3# Copyright (c) 2015 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> 4# 5 6""" 7Module implementing a dialog to show all saved zoom values. 8""" 9 10from PyQt5.QtCore import QSortFilterProxyModel 11from PyQt5.QtGui import QFont, QFontMetrics 12from PyQt5.QtWidgets import QDialog 13 14from .Ui_ZoomValuesDialog import Ui_ZoomValuesDialog 15 16 17class ZoomValuesDialog(QDialog, Ui_ZoomValuesDialog): 18 """ 19 Class implementing a dialog to show all saved zoom values. 20 """ 21 def __init__(self, parent=None): 22 """ 23 Constructor 24 25 @param parent reference to the parent widget (QWidget) 26 """ 27 super().__init__(parent) 28 self.setupUi(self) 29 30 self.removeButton.clicked.connect( 31 self.zoomValuesTable.removeSelected) 32 self.removeAllButton.clicked.connect(self.zoomValuesTable.removeAll) 33 34 from . import ZoomManager 35 from .ZoomValuesModel import ZoomValuesModel 36 37 self.zoomValuesTable.verticalHeader().hide() 38 self.__zoomValuesModel = ZoomValuesModel( 39 ZoomManager.instance(), self) 40 self.__proxyModel = QSortFilterProxyModel(self) 41 self.__proxyModel.setSourceModel(self.__zoomValuesModel) 42 self.searchEdit.textChanged.connect( 43 self.__proxyModel.setFilterFixedString) 44 self.zoomValuesTable.setModel(self.__proxyModel) 45 46 fm = QFontMetrics(QFont()) 47 height = fm.height() + fm.height() // 3 48 self.zoomValuesTable.verticalHeader().setDefaultSectionSize(height) 49 self.zoomValuesTable.verticalHeader().setMinimumSectionSize(-1) 50 51 self.__calculateHeaderSizes() 52 53 def __calculateHeaderSizes(self): 54 """ 55 Private method to calculate the section sizes of the horizontal header. 56 """ 57 fm = QFontMetrics(QFont()) 58 for section in range(self.__zoomValuesModel.columnCount()): 59 header = self.zoomValuesTable.horizontalHeader().sectionSizeHint( 60 section) 61 if section == 0: 62 try: 63 header = fm.horizontalAdvance( 64 "extraveryveryverylongsitename") 65 except AttributeError: 66 header = fm.width( 67 "extraveryveryverylongsitename") 68 elif section == 1: 69 try: 70 header = fm.horizontalAdvance("averagelongzoomvalue") 71 except AttributeError: 72 header = fm.width("averagelongzoomvalue") 73 try: 74 buffer = fm.width("mm") 75 except AttributeError: 76 buffer = fm.width("mm") 77 header += buffer 78 self.zoomValuesTable.horizontalHeader().resizeSection( 79 section, header) 80 self.zoomValuesTable.horizontalHeader().setStretchLastSection(True) 81