#include "qtkeyboard.h"
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#include "ui_qtkeyboard.h"
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#include <QDebug>
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#include <QTimer>
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#include <QDesktopWidget>
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QKeyBoard* QKeyBoard::_instance = nullptr;
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#define str_board_close "Close"
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#define SHIFT_ON "SHIFT"
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#define SHIFT_OFF "shift"
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QKeyBoard::QKeyBoard(QWidget *parent) : QWidget(parent),
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ui(new Ui::QKeyBoard),
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isShiftOn(false),
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lineEdit(nullptr),
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mousePressed(false)
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{
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ui->setupUi(this);
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ui->btna->setProperty("btnLetter", true);
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ui->btnb->setProperty("btnLetter", true);
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ui->btnc->setProperty("btnLetter", true);
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ui->btnd->setProperty("btnLetter", true);
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ui->btne->setProperty("btnLetter", true);
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ui->btnf->setProperty("btnLetter", true);
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ui->btng->setProperty("btnLetter", true);
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ui->btnh->setProperty("btnLetter", true);
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ui->btni->setProperty("btnLetter", true);
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ui->btnj->setProperty("btnLetter", true);
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ui->btnk->setProperty("btnLetter", true);
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ui->btnl->setProperty("btnLetter", true);
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ui->btnm->setProperty("btnLetter", true);
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ui->btnn->setProperty("btnLetter", true);
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ui->btno->setProperty("btnLetter", true);
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ui->btnp->setProperty("btnLetter", true);
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ui->btnq->setProperty("btnLetter", true);
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ui->btnr->setProperty("btnLetter", true);
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ui->btns->setProperty("btnLetter", true);
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ui->btnt->setProperty("btnLetter", true);
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ui->btnu->setProperty("btnLetter", true);
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ui->btnv->setProperty("btnLetter", true);
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ui->btnw->setProperty("btnLetter", true);
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ui->btnx->setProperty("btnLetter", true);
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ui->btny->setProperty("btnLetter", true);
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ui->btnz->setProperty("btnLetter", true);
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const QRect availableGeometry = QApplication::desktop()->availableGeometry();
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QFont font;
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font.setPixelSize(availableGeometry.height()/20);
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setWindowFlags(Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
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connect(qApp, SIGNAL(focusChanged(QWidget*, QWidget*)),
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this, SLOT(slot_onApplicationFocusChanged(QWidget*, QWidget*)));
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qApp->installEventFilter(this);
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QList<QPushButton*> btns = this->findChildren<QPushButton*>();
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foreach (QPushButton *button, btns) {
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connect(button, SIGNAL(clicked()), this, SLOT(btn_clicked()));
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button->setFont(font);
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}
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}
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QKeyBoard::~QKeyBoard()
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{
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delete ui;
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_instance = nullptr;
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}
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void QKeyBoard::changeInputType(bool on)
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{
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QString str;
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ui->btnShift->setText(on?SHIFT_ON:SHIFT_OFF);
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QList<QPushButton*> buttons = this->findChildren<QPushButton*>();
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foreach (QPushButton *button, buttons) {
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if (button->property("btnLetter").toBool()) {
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if (on)
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button->setText(button->text().toUpper());
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else
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button->setText(button->text().toLower());
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} else if(! button->objectName().compare("btnApostrophe")){
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button->setText(on?"\"":"\'");
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} else if(! button->objectName().compare("btnBackslash")){
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button->setText(on?"|":"\\");
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} else if(! button->objectName().compare("btnComma")){
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button->setText(on?"<":",");
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} else if(! button->objectName().compare("btnDash")){
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button->setText(on?"_":"-");
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} else if(! button->objectName().compare("btnDot")){
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button->setText(on?">":".");
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} else if(! button->objectName().compare("btnEquals")){
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button->setText(on?"+":"=");
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} else if(! button->objectName().compare("btnSemicolon")){
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button->setText(on?":":";");
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} else if(! button->objectName().compare("btnSlash")){
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button->setText(on?"?":"/");
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} else if(! button->objectName().compare("btnOther1")){
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button->setText(on?"~":"`");
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} else if(! button->objectName().compare("btnOther2")){
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button->setText(on?"{":"[");
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} else if(! button->objectName().compare("btnOther3")){
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button->setText(on?"}":"]");
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} else if(! button->objectName().compare("btn1")){
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button->setText(on?"!":"1");
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} else if(! button->objectName().compare("btn2")){
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button->setText(on?"@":"2");
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} else if(! button->objectName().compare("btn3")){
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button->setText(on?"#":"3");
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} else if(! button->objectName().compare("btn4")){
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button->setText(on?"$":"4");
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} else if(! button->objectName().compare("btn5")){
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button->setText(on?"%":"5");
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} else if(! button->objectName().compare("btn6")){
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button->setText(on?"^":"6");
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} else if(! button->objectName().compare("btn7")){
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button->setText(on?"&":"7");
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} else if(! button->objectName().compare("btn8")){
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button->setText(on?"*":"8");
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} else if(! button->objectName().compare("btn9")){
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button->setText(on?"(":"9");
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} else if(! button->objectName().compare("btn0")){
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button->setText(on?")":"0");
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}
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}
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}
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void QKeyBoard::showPanel()
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{
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changeInputType(isShiftOn);
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this->setVisible(true);
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}
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void QKeyBoard::hidePanel()
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{
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this->setVisible(false);
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}
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void QKeyBoard::slot_onApplicationFocusChanged(QWidget *, QWidget *nowWidget)
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{
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if (nowWidget != nullptr && !this->isAncestorOf(nowWidget)) {
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if (nowWidget->inherits("QLineEdit")) {
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lineEdit = (QLineEdit*)nowWidget;
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showPanel();
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} else {
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hidePanel();
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}
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const QRect availableGeometry = QApplication::desktop()->availableGeometry();
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resize(availableGeometry.width(), height());
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move(0, availableGeometry.height() - height());
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}
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}
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void QKeyBoard::btn_clicked()
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{
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if (lineEdit == nullptr) {
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return;
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}
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QPushButton *button = (QPushButton*)sender();
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QString objectName = button->objectName();
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if (objectName == "btnBackspace") {
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lineEdit->backspace();
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} else if (objectName == "btnClose") {
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// foucs other widget first.
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if (lineEdit && lineEdit->parentWidget())
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lineEdit->parentWidget()->setFocus();
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hidePanel();
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} else if (objectName == "btnSpace") {
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insertValue(" ");
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} else if (objectName == "btnShift") {
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isShiftOn = (isShiftOn == true) ? false : true;
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changeInputType(isShiftOn);
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} else {
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insertValue(button->text());
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}
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}
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void QKeyBoard::insertValue(const QString &value)
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{
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if (lineEdit->text().length() < 20)
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lineEdit->insert(value);
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}
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void QKeyBoard::mousePressEvent(QMouseEvent *event)
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{
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if (event->button() == Qt::LeftButton) {
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mousePressed = true;
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mousePoint = event->globalPos() - this->pos();
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event->accept();
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}
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}
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void QKeyBoard::mouseMoveEvent(QMouseEvent *event)
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{
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if (mousePressed && event->buttons() == Qt::LeftButton) {
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this->move(event->globalPos() - mousePoint);
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event->accept();
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}
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}
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void QKeyBoard::mouseReleaseEvent(QMouseEvent *)
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{
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mousePressed = false;
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}
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