# -*- coding: utf-8 -*-
import re

from PyQt5 import QtCore, QtWidgets
try:
    from_utf8 = QtCore.QString.fromUtf8
except AttributeError:
    def from_utf8(s):
        return s


class SComboBox(QtWidgets.QComboBox):
    """
    Special combobox derivative that emits a signal when a key is pressed.
    """
    keyPressed = QtCore.pyqtSignal(int)

    def keyPressEvent(self, event):
        """
        Override the inherited keyPressEvent to emit a signal.
        """
        self.keyPressed.emit(event.key())
        return QtWidgets.QComboBox.keyPressEvent(self, event)


class Highlight(object):
    def __init__(self, pattern, foreground, background=None):
        self.pattern = pattern
        self.regex = re.compile(pattern)
        self.foreground = foreground
        self.background = background

    def set_pattern(self, pattern):
        self.pattern = pattern
        try:
            self.regex = re.compile(pattern)
        except re.error:
            self.regex = None


def translate(context, string, description=None):
    return QtWidgets.QApplication.translate(context, string, description)


def create_default_highlights():
    return [
        Highlight(r'PASSED', u'#ffffff', '#009900'),
        Highlight(r'FAILED', u'#ffffff', '#990000'),
        Highlight(r'^\\|/', u'#666666')
    ]


from colourterm.settingsdialog import SettingsDialog            # noqa
from colourterm.connectdialog import ConnectDialog              # noqa


__all__ = ['SettingsDialog', 'ConnectDialog', 'SComboBox', 'Highlight', 'translate', 'from_utf8']