Implement title bar statistics

src/qt/qt_main.cpp

@@ -13,6 +13,7 @@
 
 #include "SDL.h"
 #include "SDL_mutex.h"
+#include "SDL_timer.h"
 #include "qt_mainwindow.hpp"
 #include "qt_sdl.h"
 #include "cocoa_mouse.hpp"
@@ -76,6 +77,12 @@ main_thread_fn()
     is_quit = 1;
 }
 
+uint32_t timer_onesec(uint32_t interval, void* param)
+{
+    pc_onesec();
+    return interval;
+}
+
 int main(int argc, char* argv[]) {
     QApplication app(argc, argv);
 #ifdef __APPLE__
@@ -97,6 +104,7 @@ int main(int argc, char* argv[]) {
 
     /* Set the PAUSE mode depending on the renderer. */
     // plat_pause(0);
+    SDL_AddTimer(1000, timer_onesec, nullptr);
 
     /* Initialize the rendering window, or fullscreen. */
     QTimer::singleShot(50, []() { plat_resize(640, 480); } );

src/qt/qt_mainwindow.cpp

@@ -48,6 +48,9 @@ MainWindow::MainWindow(QWidget *parent) :
 
     connect(this, &MainWindow::showMessageForNonQtThread, this, &MainWindow::showMessage_, Qt::BlockingQueuedConnection);
 
+    connect(this, &MainWindow::setTitleForNonQtThread, this, &MainWindow::setTitle_, Qt::BlockingQueuedConnection);
+    connect(this, &MainWindow::getTitleForNonQtThread, this, &MainWindow::getTitle_, Qt::BlockingQueuedConnection);
+
     connect(this, &MainWindow::pollMouse, ui->glesWidget, &GLESWidget::qt_mouse_poll);
 
     connect(this, &MainWindow::setMouseCapture, this, [this](bool state) {
@@ -641,6 +644,34 @@ void MainWindow::on_actionFullscreen_triggered() {
     }
 }
 
+void MainWindow::setTitle_(const wchar_t *title)
+{
+    this->setWindowTitle(QString::fromWCharArray(title));
+}
+
+void MainWindow::setTitle(const wchar_t *title)
+{
+    if (QThread::currentThread() == this->thread()) {
+        setTitle_(title);
+    } else {
+        emit setTitleForNonQtThread(title);
+    }
+}
+
+void MainWindow::getTitle_(wchar_t *title)
+{
+    this->windowTitle().toWCharArray(title);
+}
+
+void MainWindow::getTitle(wchar_t *title)
+{
+    if (QThread::currentThread() == this->thread()) {
+        getTitle_(title);
+    } else {
+        emit getTitleForNonQtThread(title);
+    }
+}
+
 void MainWindow::showMessage(const QString& header, const QString& message) {
     if (QThread::currentThread() == this->thread()) {
         showMessage_(header, message);

src/qt/qt_mainwindow.hpp

@@ -20,6 +20,8 @@ public:
     ~MainWindow();
 
     void showMessage(const QString& header, const QString& message);
+    void setTitle(const wchar_t* title);
+    void getTitle(wchar_t* title);
 signals:
     void paint(const QImage& image);
     void blitToWidget(int x, int y, int w, int h);
@@ -33,6 +35,8 @@ signals:
     void setMouseCapture(bool state);
 
     void showMessageForNonQtThread(const QString& header, const QString& message);
+    void setTitleForNonQtThread(const wchar_t* title);
+    void getTitleForNonQtThread(wchar_t* title);
 private slots:
     void on_actionFullscreen_triggered();
     void on_actionSettings_triggered();
@@ -45,6 +49,8 @@ private slots:
     void on_actionKeyboard_requires_capture_triggered();
 
     void showMessage_(const QString& header, const QString& message);
+    void setTitle_(const wchar_t* title);
+    void getTitle_(wchar_t* title);
 protected:
     void keyPressEvent(QKeyEvent* event) override;
     void keyReleaseEvent(QKeyEvent* event) override;

src/qt/qt_ui.cpp

@@ -27,11 +27,11 @@ wchar_t* ui_window_title(wchar_t* str)
 {
     if (str == nullptr) {
         static wchar_t title[512];
-        int chars = main_window->windowTitle().toWCharArray(title);
-        title[chars] = 0;
+        memset(title, 0, sizeof(title));
+        main_window->getTitle(title);
         str = title;
     } else {
-        main_window->setWindowTitle(QString::fromWCharArray(str));
+        main_window->setTitle(str);
     }
     return str;
 }