基于Qt5的虚拟键盘

#include "keyboardform.h" #include <QPushButton> #include <QLineEdit> #include <QLabel> #include <QVBoxLayout> #include <QHBoxLayout> #include <QKeyEvent> #include <QFontDatabase> #include <QApplication> #include <QDebug> const char *kbNumber = "1234567890"; const char *kbLetter = "qwertyuiopasdfghjklzxcvbnm"; const char *kbSymbol = "!@#$%^&*()-_+=[]{}|\\:;\"<>?"; const int verSpace = 4; const int horSpace = 4; const int margins = 4; const int btnHeight = (220 - verSpace*5)/5; const int btnWidth = (600 - margins*2 - horSpace*10)/10.8+0.5; const int hanziCandidate = 7; const int letter1 = 10; const int letter2 = 9; const int letter3 = 7; KeyboardForm::KeyboardForm(QWidget *parent) : QDialog(parent), m_inputMode(ImEn),m_shiftKey(false),m_hanziPageCnt(0), m_curHanziPage(0) { m_listCharsBtns.clear(); m_cachePinYin.clear(); setWindowModality(Qt::WindowModal); setWindowFlags(windowFlags() | Qt::Tool | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::WindowDoesNotAcceptFocus); //图标字体 int fontId = QFontDatabase::addApplicationFont(":/font/FontAwesome.otf"); QString fontName = QFontDatabase::applicationFontFamilies(fontId).at(0); QFont icofont(fontName); icofont.setPixelSize(20); //按键字体 QFont deffont("Courier"); deffont.setPixelSize(18); // 第一行 显示拼音 m_labPyText = new QLabel; //m_labPyText->setStyleSheet("background: #a0ffffff; border-color: gray; border-width: 1px; border-style: solid; border-radius: 5px;"); QHBoxLayout *h1 = new QHBoxLayout; h1->addWidget(m_labPyText); h1->addStretch(); // 第二行 显示汉字，八个候选项 QHBoxLayout *h2 = new QHBoxLayout; h2->setSpacing(1); for (int i = 0; i < hanziCandidate; i++) { QPushButton *btn = new QPushButton; btn->setFont(deffont); btn->setStyleSheet("QPushButton{border: none; border-image: none; font-size: 14px}"); h2->addWidget(btn); m_listHanzi.append(btn); if (i == 0 || i == hanziCandidate-1) { btn->setEnabled(false); btn->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed); btn->setText(i == 0 ? "\xC2\xAB" : "\xC2\xBB"); } else { connect(btn, SIGNAL(clicked()), SLOT(hanziClicked())); } } connect(m_listHanzi[0], SIGNAL(clicked()), SLOT(prevPage())); connect(m_listHanzi[hanziCandidate-1], SIGNAL(clicked()), SLOT(nextPage())); // 拼音+汉子 整个放入pyFrm Widget m_pyFrm = new QWidget; m_pyFrm->setLayout(h2); //m_pyFrm->setStyleSheet("background:#FFFFFF"); QVBoxLayout *pyLayout = new QVBoxLayout; pyLayout->addLayout(h1); pyLayout->addWidget(m_pyFrm); // 第三行 数字 QHBoxLayout *h3 = new QHBoxLayout; // 波浪号~ QPushButton *btnWave = new QPushButton("~"); btnWave->setFont(deffont); btnWave->setFixedSize(btnWidth, btnHeight); connect(btnWave, SIGNAL(clicked()), SLOT(numClicked()));//直接输出字符 h3->addWidget(btnWave); for (int j = 0; j < 10; j++) { QPushButton *btn = new QPushButton(QString(QLatin1Char(kbNumber[j]))); btn->setFixedSize(btnWidth, btnHeight); btn->setFont(deffont); connect(btn, SIGNAL(clicked()), SLOT(numClicked())); h3->addWidget(btn); } // 第一行字母 QHBoxLayout *h4 = new QHBoxLayout; for (int j = 0; j < letter1; j++) { QPushButton *btn = new QPushButton(QString(QLatin1Char(kbLetter[j]))); btn->setFixedSize(btnWidth, btnHeight); btn->setFont(deffont); connect(btn, SIGNAL(clicked()), SLOT(letterClicked())); h4->addWidget(btn); m_listCharsBtns.append(btn); } QPushButton *btnBack = new QPushButton(); btnBack->setFont(icofont); btnBack->setText(QChar(0xf060)); btnBack->setFixedSize(btnWidth, btnHeight); btnBack->setAutoRepeat(true); connect(btnBack, SIGNAL(clicked()), SLOT(backSpace())); h4->addWidget(btnBack); // 第二行字母 QHBoxLayout *h5 = new QHBoxLayout; h5->addStretch(); for (int j = 0; j < letter2; j++) { QPushButton *btn = new QPushButton(QString(QLatin1Char(kbLetter[letter1+j]))); btn->setFont(deffont); btn->setFixedSize(btnWidth, btnHeight); connect(btn, SIGNAL(clicked()), SLOT(letterClicked())); h5->addWidget(btn); m_listCharsBtns.append(btn); } QPushButton *btnEnter = new QPushButton("ENTER"); btnEnter->setFont(deffont); btnEnter->setFixedSize(btnWidth*1.5, btnHeight); connect(btnEnter, SIGNAL(clicked()), SLOT(enter())); h5->addWidget(btnEnter); h5->addStretch(); // 第三行字母 QHBoxLayout *h6 = new QHBoxLayout; m_btnShift = new QPushButton(QChar(0xf062)); m_btnShift->setFont(icofont); m_btnShift->setFixedSize(btnWidth, btnHeight); connect(m_btnShift, SIGNAL(clicked()), SLOT(shiftClicked())); h6->addWidget(m_btnShift); for (int j = 0; j < letter3; j++) { QPushButton *btn = new QPushButton(QString(QLatin1Char(kbLetter[letter1 + letter2 + j]))); btn->setFont(deffont); btn->setFixedSize(btnWidth, btnHeight); connect(btn, SIGNAL(clicked()), SLOT(letterClicked())); h6->addWidget(btn); m_listCharsBtns.append(btn); } QString letter(",./"); for (int j = 0; j < 3; j++) { QPushButton* btn = new QPushButton(letter.at(j)); btn->setFont(deffont); btn->setFixedSize(btnWidth, btnHeight); connect(btn, SIGNAL(clicked()), SLOT(numClicked())); h6->addWidget(btn); } // 第四行 QHBoxLayout *h7 = new QHBoxLayout; m_btnSymbol = new QPushButton(".?123"); m_btnSymbol->setFont(deffont); m_btnSymbol->setFixedSize(btnWidth*1.5, btnHeight); connect(m_btnSymbol, SIGNAL(clicked()), SLOT(changeSymbol())); h7->addWidget(m_btnSymbol); m_btnChange = new QPushButton(QChar(0xf0ac)); m_btnChange->setFont(icofont); m_btnChange->setProperty("Mode", ImEn); m_btnChange->setFixedSize(btnWidth, btnHeight); connect(m_btnChange, SIGNAL(clicked()), SLOT(changeInputMode())); h7->addWidget(m_btnChange); m_btnSpace = new QPushButton("英文"); // 空格 m_btnSpace->setFont(deffont); m_btnSpace->setFixedHeight(btnHeight); connect(m_btnSpace, SIGNAL(clicked()), SLOT(space())); h7->addWidget(m_btnSpace); QPushButton *btnSplit = new QPushButton("'"); btnSplit->setFont(deffont); btnSplit->setFixedSize(btnWidth, btnHeight); connect(btnSplit, SIGNAL(clicked()), SLOT(letterClicked())); h7->addWidget(btnSplit); QString text = QChar(0xf11c); text.append(QChar(0xf103)); QPushButton *btnHide = new QPushButton(text); btnHide->setFont(icofont); btnHide->setFixedSize(btnWidth*1.5, btnHeight); connect(btnHide, SIGNAL(clicked()), SLOT(hide())); h7->addWidget(btnHide); QVBoxLayout *boradLayout = new QVBoxLayout; boradLayout->setMargin(margins); boradLayout->setSpacing(margins); boradLayout->addLayout(h3); boradLayout->addLayout(h4); boradLayout->addLayout(h5); boradLayout->addLayout(h6); boradLayout->addLayout(h7); // 键盘widget容器 m_btnFrm = new QWidget(); m_btnFrm->setLayout(boradLayout); m_pyFrm->setFixedHeight(40); // 主布局，拼音、汉字 + 按键 m_mainLayout = new QVBoxLayout; m_mainLayout->setMargin(0); m_mainLayout->setSpacing(0); m_mainLayout->addLayout(pyLayout); m_mainLayout->addWidget(m_btnFrm); setLayout(m_mainLayout); connect(&m_pinyin, SIGNAL(pinyinTextChanged(QString)), this, SLOT(setText(QString))); //setFixedHeight(m_pyFrm->height() + m_labPyText->height() + m_btnFrm->height()); changeStyle(); } void KeyboardForm::letterClicked() { QString text = ((QPushButton*)sender())->text(); if (m_inputMode == ImNum || m_shi