Preferences/ConfigurationPages/HexEditorPage.py

# -*- coding: utf-8 -*-

# Copyright (c) 2016 Detlev Offenbach <detlev@die-offenbachs.de>
#


"""
Module implementing the Hex Editor configuration page.
"""

from __future__ import unicode_literals

from PyQt5.QtCore import pyqtSlot
from PyQt5.QtWidgets import QFontDialog

from .ConfigurationPageBase import ConfigurationPageBase
from .Ui_HexEditorPage import Ui_HexEditorPage

import Preferences

try:
    MonospacedFontsOption = QFontDialog.MonospacedFonts
except AttributeError:
    MonospacedFontsOption = QFontDialog.FontDialogOptions(0x10)


class HexEditorPage(ConfigurationPageBase, Ui_HexEditorPage):
    """
    Class implementing the Hex Editor configuration page.
    """
    def __init__(self):
        """
        Constructor
        """
        super(HexEditorPage, self).__init__()
        self.setupUi(self)
        self.setObjectName("HexEditorPage")
        
        # set initial values
        self.readOnlyCheckBox.setChecked(Preferences.getHexEditor(
            "OpenReadOnly"))
        self.overwriteCheckBox.setChecked(Preferences.getHexEditor(
            "OpenInOverwriteMode"))
        self.addressAreaCheckBox.setChecked(Preferences.getHexEditor(
            "ShowAddressArea"))
        self.addressAreaWidthSpinBox.setValue(Preferences.getHexEditor(
            "AddressAreaWidth"))
        self.asciiAreaCheckBox.setChecked(Preferences.getHexEditor(
            "ShowAsciiArea"))
        self.highlightingCheckBox.setChecked(Preferences.getHexEditor(
            "HighlightChanges"))
        
        # font
        self.monospacedFont = Preferences.getHexEditor("Font")
        self.monospacedFontSample.setFont(self.monospacedFont)

        # colours
        self.initColour("HighlightingBackGround",
                        self.highlightingBackGroundButton,
                        Preferences.getHexEditor)
        self.initColour("HighlightingForeGround",
                        self.highlightingForeGroundButton,
                        Preferences.getHexEditor)
        self.initColour("SelectionBackGround",
                        self.selectionBackGroundButton,
                        Preferences.getHexEditor)
        self.initColour("SelectionForeGround",
                        self.selectionForeGroundButton,
                        Preferences.getHexEditor)
        self.initColour("AddressAreaBackGround",
                        self.addressAreaBackGroundButton,
                        Preferences.getHexEditor)
        self.initColour("AddressAreaForeGround",
                        self.addressAreaForeGroundButton,
                        Preferences.getHexEditor)
    
    def save(self):
        """
        Public slot to save the IRC configuration.
        """
        Preferences.setHexEditor(
            "OpenReadOnly", self.readOnlyCheckBox.isChecked())
        Preferences.setHexEditor(
            "OpenInOverwriteMode", self.overwriteCheckBox.isChecked())
        Preferences.setHexEditor(
            "ShowAddressArea", self.addressAreaCheckBox.isChecked())
        Preferences.setHexEditor(
            "AddressAreaWidth", self.addressAreaWidthSpinBox.value())
        Preferences.setHexEditor(
            "ShowAsciiArea", self.asciiAreaCheckBox.isChecked())
        Preferences.setHexEditor(
            "HighlightChanges", self.highlightingCheckBox.isChecked())
        Preferences.setHexEditor(
            "Font", self.monospacedFont)
        
        # colours
        self.saveColours(Preferences.setHexEditor)
    
    @pyqtSlot()
    def on_monospacedFontButton_clicked(self):
        """
        Private method used to select the font to be used.
        """
        self.monospacedFont = self.selectFont(
            self.monospacedFontSample, self.monospacedFont,
            options=MonospacedFontsOption)
    
    def polishPage(self):
        """
        Public slot to perform some polishing actions.
        """
        self.monospacedFontSample.setFont(self.monospacedFont)


def create(dlg):
    """
    Module function to create the configuration page.
    
    @param dlg reference to the configuration dialog
    @return reference to the instantiated page (ConfigurationPageBase)
    """
    page = HexEditorPage()
    return page