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Question

Devik

Asked:2024-04-05 19:27:20 +0000 UTC2024-04-05 19:27:20 +0000 UTC 2024-04-05 19:27:20 +0000 UTC

更改可视键盘布局

772

我有一个Keyboard类，其中绘制键盘，还有一个KeyEvent类，其中按键可视化。我需要当我按下 Alt + Shift 组合时，视觉键盘上的语言会发生变化。

我尝试完全清除键盘，删除所有元素，但是当我调用setupUI时它不会出现。

界面

from PySide6.QtCore import (QCoreApplication, QDate, QDateTime, QLocale,
    QMetaObject, QObject, QPoint, QRect,
    QSize, QTime, QUrl, Qt)
from PySide6.QtGui import (QBrush, QColor, QConicalGradient, QCursor,
    QFont, QFontDatabase, QGradient, QIcon,
    QImage, QKeySequence, QLinearGradient, QPainter,
    QPalette, QPixmap, QRadialGradient, QTransform)
from PySide6.QtWidgets import (QApplication, QFrame, QMainWindow, QSizePolicy,
    QVBoxLayout, QWidget)
from create_keyboard import Keyboard

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        if not MainWindow.objectName():
            MainWindow.setObjectName(u"MainWindow")
        MainWindow.resize(750, 443)
        self.centralwidget = QWidget(MainWindow)
        self.centralwidget.setObjectName(u"centralwidget")
        self.verticalLayout = QVBoxLayout(self.centralwidget)
        self.verticalLayout.setObjectName(u"verticalLayout")
        self.main_frame = QFrame(self.centralwidget)
        self.main_frame.setObjectName(u"main_frame")
        self.main_frame.setFrameShape(QFrame.StyledPanel)
        self.main_frame.setFrameShadow(QFrame.Raised)
        self.verticalLayout_2 = QVBoxLayout(self.main_frame)
        self.verticalLayout_2.setObjectName(u"verticalLayout_2")
        self.Keyboard = Keyboard(self.main_frame)
        self.Keyboard.setObjectName(u"Keyboard")
        self.Keyboard.setFrameShape(QFrame.StyledPanel)
        self.Keyboard.setFrameShadow(QFrame.Raised)

    self.verticalLayout_2.addWidget(self.Keyboard)


    self.verticalLayout.addWidget(self.main_frame)

    MainWindow.setCentralWidget(self.centralwidget)

    self.retranslateUi(MainWindow)

    QMetaObject.connectSlotsByName(MainWindow)
# setupUi

def retranslateUi(self, MainWindow):
    MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"MainWindow", None))
# retranslateUi


class Test(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(Test, self).__init__()
        self.setupUi(self)

        self.installEventFilter(self.Keyboard.events)


if __name__ == "__main__":
    from sys import argv, exit
    app = QApplication(argv)
    window = Test()
    window.show()
    exit(app.exec())

创建键盘.py

from PySide6.QtCore import QSize, Qt
from PySide6.QtWidgets import QFrame, QHBoxLayout, QLabel, QSizePolicy, QSpacerItem, QVBoxLayout
from key_events import KeyEvent


class Keyboard(QFrame):

    ru = ['', 'Ё', '1 !', '2 "', '3 №', '4 ;', '5 %', '6 :', '7 ?', '8 *', '9 (', '0 )', '- _', '= +', 'BackSpace', '',
        '', 'Tab', 'Й', 'Ц', 'У', 'К', 'Е', 'Н', 'Г', 'Ш', 'Щ', 'З', 'Х', 'Ъ', '\\ /', '',
        '', 'Caps', 'Ф', 'Ы', 'В', 'А', 'П', 'Р', 'О', 'Л', 'Д', 'Ж', 'Э', 'Enter', '',
        '', 'Shift', 'Я', 'Ч', 'С', 'М', 'И', 'Т', 'Ь', 'Б', 'Ю', '. ,', 'LShift', '',
        '', 'Alt', 'Space', '']
    eng = ['', '` ~', '1 !', '2 @', '3 #', '4 $', '5 %', '6 ^', '7 &', '8 *', '9 (', '0 )', '- _', '= +', 'BackSpace', '',
        '', 'Tab', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '[ {', '] }', '\\ |', '',
        '', 'Caps', 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', '; :', '\' "', 'Enter', '',
        '', 'Shift', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', ', <', '. >', '/ ?', 'LShift', '',
        '', 'Alt', 'Space', '']
    symbols = '~!@#$%^&*()_+\\{}:"<>?!"№;%:?*()_+/,|'
    sizes = {'BackSpace': (100, 140), 'Tab': (80, 110), '\\ /': (70, 100),
         '\\ |': (70, 100), 'Caps': (100, 130), 'Enter': (100, 155),
         'Shift': (130, 170), 'LShift': (130, 190), 'Space': (400, 550)}

    def __init__(self, parent=None):
        super().__init__(parent)
        self.setMaximumSize(QSize(16777215, 385))

        self.keys = None
        self.setupUI('ru')

        self.events = KeyEvent(self)

    def setupUI(self, lang):
        self.keys = self.ru if lang == 'ru' else self.eng
        lines = {'Line_1': self.keys[:16], 'Line_2': self.keys[16:32], 'Line_3': self.keys[32:47],
             'Line_4': self.keys[47:61], 'Line_5': self.keys[61:]}

        self.verticalLayout = QVBoxLayout(self)
        self.verticalLayout.setSpacing(5)
        self.verticalLayout.setObjectName(u"verticalLayout")
        self.verticalLayout.setContentsMargins(10, 0, 10, 0)

        sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)

        for i, ln in enumerate(lines.keys()):
            line = QFrame(self)
            line.setObjectName(ln)

            horizontalLayout = QHBoxLayout(line)
            horizontalLayout.setSpacing(5)
            horizontalLayout.setObjectName(f"horizontalLayout_{i}")
            horizontalLayout.setContentsMargins(0, 0, 0, 0)

            for key in lines[ln]:
                if not key:
                    horizontalSpacer = QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
                    horizontalLayout.addItem(horizontalSpacer)
                    continue

                label = QLabel(line)
                if key[-1] in self.symbols:
                    label.setObjectName(f'Key_{key[0]}')
                else:
                    label.setObjectName(f'Key_{key}')
                sizePolicy.setHeightForWidth(label.sizePolicy().hasHeightForWidth())
                label.setSizePolicy(sizePolicy)
                label.setText(key)
                if key in self.sizes.keys():
                    minimal, maximum = self.sizes[key]
                    label.setMinimumSize(QSize(minimal, 50))
                    label.setMaximumSize(QSize(maximum, 70))
                else:
                    label.setMinimumSize(QSize(50, 50))
                    label.setMaximumSize(70, 70)
                label.setAlignment(Qt.AlignCenter)
                horizontalLayout.addWidget(label)

            for index, key in enumerate(lines[ln]):
                if key:
                    if (ln == 'Line_1' and index == 14 or ln == 'Line_2' and index in (1, 14)
                        or ln == 'Line_3' and index in (1, 13) or ln == 'Line_4' and index in (1, 12)):
                        horizontalLayout.setStretch(index, 3)

                    else:
                        horizontalLayout.setStretch(index, 1)

                    if ln == 'Line_5':
                        horizontalLayout.setStretch(0, 4)
                        horizontalLayout.setStretch(1, 1)
                        horizontalLayout.setStretch(2, 8)
                        horizontalLayout.setStretch(3, 4)

            self.verticalLayout.addWidget(line)

key_events.py

from PySide6.QtCore import Qt, QObject
from PySide6.QtGui import QKeyEvent
from PySide6.QtWidgets import QLabel
from ctypes import WinDLL


def _get_capslock_state():
    hllDll = WinDLL("User32.dll")
    VK_CAPITAL = 0x14
    return hllDll.GetKeyState(VK_CAPITAL) != 0


class KeyEvent(QObject):
    keys = {Qt.Key_Backspace: "BackSpace", Qt.Key_Return: "Enter", Qt.Key_Space: "Space",
            Qt.Key_Tab: "Tab", Qt.Key_Alt: "Alt"}

    def __init__(self, parent=None):
        super().__init__(parent)
        self.parent = parent
        self.caps_on = _get_capslock_state()
        self.system_button = False

        if self.caps_on:
            self._search_button('Caps').setStyleSheet(u'background-color: #999999')

    def eventFilter(self, watched, event):
        if event.type() == QKeyEvent.KeyPress:
            key: QKeyEvent = event

            # Изменить клавиатуру здесь
            if key.modifiers() is Qt.AltModifier | Qt.ShiftModifier:
                pass

            if key.nativeScanCode() == 54:
                self._search_button('LShift').setStyleSheet(u'background-color: #999999')
            if key.nativeScanCode() == 42:
                self._search_button('Shift').setStyleSheet(u'background-color: #999999')

            for k, v in self.keys.items():
                if key.key() == k:
                    self._search_button(v).setStyleSheet(u'background-color: #999999')
                    self.system_button = True

            if key.key() == Qt.Key_CapsLock and not self.caps_on:
                self._search_button('Caps').setStyleSheet(u'background-color: #999999')
                self.caps_on = True
                return True
            elif key.key() == Qt.Key_CapsLock and self.caps_on:
                self._search_button('Caps').setStyleSheet(u'background-color: none')
                self.caps_on = False

            if not self.system_button:
                if key.modifiers() == Qt.ShiftModifier and key.text():
                    self._search_button(self._translate(key.text())).setStyleSheet(u'background-color: #999999')

                if key.modifiers() == Qt.NoModifier and key.text():
                    self._search_button(key.text().upper()).setStyleSheet(u'background-color: #999999')

        if event.type() == QKeyEvent.KeyRelease:
            key: QKeyEvent = event

            if key.nativeScanCode() == 54:
                self._search_button('LShift').setStyleSheet(u'background-color: none')
            if key.nativeScanCode() == 42:
                self._search_button('Shift').setStyleSheet(u'background-color: none')

            for k, v in self.keys.items():
                if key.key() == k:
                    self._search_button(v).setStyleSheet(u'background-color: none')
                    self.system_button = False
                    return True

            if key.modifiers() == Qt.ShiftModifier and key.text():
                self._search_button(self._translate(key.text())).setStyleSheet(u'background-color: none')

            if key.modifiers() == Qt.NoModifier and key.text():
                self._search_button(self._translate(key.text()).upper()).setStyleSheet(u'background-color: none')

        return super().eventFilter(watched, event)

    def _search_button(self, name):
        buttons = self.parent.findChildren(QLabel)
        for btn in buttons:
            name_button = btn.objectName().split('_')[1]
            if name_button == name:
                return btn

    def _translate(self, text):
        if self.parent.keys == self.parent.eng:
            maketrans = text.maketrans('~!@#$%^&*()_+|{}:"<>?', '`1234567890-=\\[];\',./')
        else:
            maketrans = text.maketrans('!"№;%:?*()_+/,', '1234567890-=\\.')
        return text.translate(maketrans)

1 个回答

Voted

Devik · Answer 1 · 2024-04-05T21:40:47Z

Best Answer

Devik

2024-04-05T21:40:47Z2024-04-05T21:40:47Z

我创建了一个删除整个键盘并重新绘制它的函数。

我还将self.verticalLayout = QVBoxLayout(self)行从stupUI()移至初始化。

现在一切都很好。

def change_layout(self):
    for i in self.findChildren(QFrame):
        i.setParent(None)
        del i

    self.switch = True
    self.setupUI()

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