Qt实现软键盘

#include "keyboard.h" #include "ui_keyboard.h" #include <Qt> #include <QtGui> #include <QPalette> #include <qtextedit.h> #include <QLineEdit> extern bool n; Keyboard::Keyboard(QWidget *parent, bool num) : QMainWindow(parent), ui(new Ui::Keyboard) { ui->setupUi(this); Flag_InputMode = LETTER; //输入格式变量 Flag_Mid_Mode = LETTER; //输入格式中转变量 m_MouseDown = false; //鼠标事件初始化 m_Page =0; m_Page_A =0;//初始化总页数和当前页码 k_letter[0]=0; k_letter[1]=0; k_letter[2]=0; k_letter[3]=0; k_letter[4]=0; k_letter[5]=0; k_letter[6]=0; k_letter_index=0; m_Display[0] = ui->hz_1; m_Display[1] = ui->hz_2; m_Display[2] = ui->hz_3; m_Display[3] = ui->hz_4; m_Display[4] = ui->hz_5; m_Display[5] = ui->hz_6; m_Display[6] = ui->hz_7; m_Display[7] = ui->hz_8; m_Display[8] = ui->hz_9; m_Display[9] = ui->hz_10;//汉字1-10的定义，将其统一放在一个数组中，方便后续代码。 m_letter_a_z[0]=ui->pushButton_a; m_letter_a_z[1]=ui->pushButton_b; m_letter_a_z[2]=ui->pushButton_c; m_letter_a_z[3]=ui->pushButton_d; m_letter_a_z[4]=ui->pushButton_e; m_letter_a_z[5]=ui->pushButton_f; m_letter_a_z[6]=ui->pushButton_g; m_letter_a_z[7]=ui->pushButton_h; m_letter_a_z[8]=ui->pushButton_i; m_letter_a_z[9]=ui->pushButton_j; m_letter_a_z[10]=ui->pushButton_k; m_letter_a_z[11]=ui->pushButton_l; m_letter_a_z[12]=ui->pushButton_m; m_letter_a_z[13]=ui->pushButton_n; m_letter_a_z[14]=ui->pushButton_o; m_letter_a_z[15]=ui->pushButton_p; m_letter_a_z[16]=ui->pushButton_q; m_letter_a_z[17]=ui->pushButton_r; m_letter_a_z[18]=ui->pushButton_s; m_letter_a_z[19]=ui->pushButton_t; m_letter_a_z[20]=ui->pushButton_u; m_letter_a_z[21]=ui->pushButton_v; m_letter_a_z[22]=ui->pushButton_w; m_letter_a_z[23]=ui->pushButton_x; m_letter_a_z[24]=ui->pushButton_y; m_letter_a_z[25]=ui->pushButton_z; setWindowFlags(Qt::Tool|Qt::WindowStaysOnTopHint|Qt::FramelessWindowHint);/*窗口风格设置，这里是去除标题栏即蓝色部分*/ if(num) { Flag_InputMode = NUMBER; //输入格式变量 Flag_Mid_Mode = NUMBER; //输入格式中转变量 KeyBoardStartMode(NUMBER); ui->pushButton_en_ch->setEnabled(false); ui->pushButton_cap->setEnabled(false); } else { Flag_InputMode = LETTER; //输入格式变量 Flag_Mid_Mode = LETTER; //输入格式中转变量 KeyBoardStartMode(LETTER); //HANZI ui->pushButton_en_ch->setEnabled(true); ui->pushButton_cap->setEnabled(true); } QString srf; QFile file(FILE_ZI_KU);//打开FILE_ZI_KU文件 if (file.open(QFile::ReadOnly)) { while (true) { char buf[1024] = {0}; qint64 Len = file.readLine(buf, sizeof(buf));//读取文件一行 if (Len <= 0) break; //判断是否读取成功，失败即跳出 srf += QString(buf);//将读取的字符流添加到srf中 } } m_srf = srf.split("\r\n"); //用QString的split函数将字库文件划分成一段一段，每个拼音对应一段字库 InitKeyBoard(); } void Keyboard::InitKeyBoard() { } void Keyboard::paintEvent(QPaintEvent *) { QPainter dc(this); QRect r = QRect(0, 0, this->width(), this->height()); Draw3dFrame(r, dc); } /*********通过拼音找汉字************* **QString PinYin 输入的拼音 **QString &Chinese 拼音所对应的汉字 **********************************/ bool Keyboard::FindChinese(QString PinYin, QString &Chinese) { QStringList lst; QString Line; for(int i=0; i<m_srf.count(); i++)//m_srf.count()QStringList有多少段 { Line = m_srf.at(i); if (Line.isEmpty() || PinYin.isEmpty()) continue; lst = Line.split(","); if (QString::compare(lst.at(0), PinYin, Qt::CaseInsensitive) == 0) { Chinese = lst.at(1); return true; } } return false; } void Keyboard::hanzi_zk_set() //此函数对所取得的字符所对应的汉字按字放在汉字显示框中。 { QString HzList; QString Temp; for (int i=0; i<10; i++) { m_Display[i]->setEnabled(false); m_Display[i]->setText(""); } if (!FindChinese(m_CurPY, HzList)) { m_Page_A=0; ui->pushButton_next->setEnabled(false); ui->pushButton_pre->setEnabled(false); return; } m_Page_A=(HzList.length()-1)/10; //获得总页数 //此处两个if-else的作用是当翻页button没有功能是，hide它 if (m_Page_A == m_Page) { ui->pushButton_next->setEnabled(false); } else { ui->pushButton_next->setEnabled(true); } if ( m_Page_A== 0||m_Page==0) { ui->pushButton_pre->setEnabled(false); } else { ui->pushButton_pre->setEnabled(true); } for (int i=m_Page*10; i<HzList.length(); i++) { Temp = HzList.at(i); // Temp = QStringLiteral(Temp); m_Display[i%10]->setText(Temp); m_Display[i%10]->setEnabled(true); if ((i+1) % 10 == 0 && i != 0) break; } } /******************鼠标拖动键盘处理部分*******************************/ void Keyboard::mouseMoveEvent(QMouseEvent *event) //键盘拖动 { if (event->buttons() == Qt::LeftButton && m_MouseDown) { move(event->globalPos() - m_DragPos); event->accept(); } } void Keyboard::mousePressEvent(QMouseEvent *event) //读取键盘左击位置， { if (event->button() == Qt::LeftButton) { m_DragPos = event->globalPos() - frameGeometry().topLeft(); event->accept(); m_MouseDown = true; } } void Keyboard::mouseReleaseEvent(QMouseEvent *event) //鼠标释放。 { Q_UNUSED(event); m_MouseDown = false; } //------------------ /*********************通过键盘输入字符QLineEdit********************************/ void Keyboard::Input_letter_to_linEdit(const QString letter) { // if(Flag_InputMode==LETTER) QWidget *q = QApplication::focusWidget(); QLineEdit *e; QTextEdit *t; if (q != NULL) { e = dynamic_cast<QLineEdit *>(q);//dynamic_cast用于判断q的类型是否为QLineEdit如果是，那么e就为QLineEdit。 if (e != NULL) e->insert(letter); t = dynamic_cast<QTextEdit *>(q); if (t != NULL) t->insertPlainText(letter); } } //Input_letter_to_linEdit--end /*******存储输入的字符到拼音框中********************************/ void Keyboard::get_key_letter(QString letter) { m_Page=0; if(k_letter_index++<6) { m_CurPY = m_CurPY + letter; } ui-> pinyin ->setText(m_CurPY);//要用ui指向前面所定义的指针 hanzi_zk_set(); //清当前页为0 } //get_key_letter____end void Keyboard::on_pushButton_esc_clicked() { // ui-> pushButton_en_ch->setText("中文"); // Flag_InputMode=HANZI; // m_CurPY=""; // ui-> pinyin ->setText(m_CurPY);//要用ui指向前面所定义的指针 // hanzi_zk_set(); // //修改一些button // ui->pushButton_sign_tan->setText("！"); // ui->pushButton_sign_wen->setText("？"); // ui->pushButton_sign_dou->setText("，"); // ui->pushButton_sign_ju->setText("。"); // ui->pushButton_sign_fen->setText("；"); // for(int i=0;i<26;i++) // { // m_letter_a_z[i]->setEnabled(true); // } close(); } void Keyboard::on_pushButton_en_ch_clicked()//中英切换button { if(Flag_InputMode==HANZI) { KeyBoardLetterMode(); } else if(Flag_InputMode==LETTER) { KeyBoardNumMode(); } else if(Flag_InputMode==NUMBER) { KeyBoardHanziMode(); } } void Keyboard::on_pushButton_cap_clicked()//大小写字母输入切换 { //初始化汉字部分的button clean_piy_and_hanzi_while_clicked(); char