Method toggleLauncher

source/MainWindow.cpp:7719–7849

}

void MainWindow::toggleLauncher() {
    // Phase P.4.4: Toggle launcher visibility
    // Phase P.4.5: Smooth transition with fade animation
    
    // Find existing Launcher among top-level widgets
    QWidget* launcher = nullptr;
    for (QWidget* widget : QApplication::topLevelWidgets()) {
        if (widget->inherits("Launcher")) {
            launcher = widget;
            break;
        }
    }
    
    if (!launcher) {
        // No launcher exists - can't toggle
#ifdef SPEEDYNOTE_DEBUG
        qDebug() << "MainWindow::toggleLauncher: No launcher window found";
#endif
        return;
    }
    
    // Animation duration in milliseconds
    const int fadeDuration = 150;
    
    if (launcher->isVisible()) {
        // ========== LAUNCHER → MAINWINDOW ==========
        // Read Launcher state BEFORE we reset it below.
        const bool launcherMaximized  = launcher->isMaximized();
        const bool launcherFullScreen = launcher->isFullScreen();
        const QPoint launcherPos  = launcher->pos();
        const QSize  launcherSize = launcher->size();
        
        // Show MainWindow in the Launcher's window state.
        // Reset stale native state on the hidden MainWindow (same reasoning
        // as the Launcher reset in the other branch — QWidget skips the
        // platform update for hidden widgets, but QWindow does not).
        setWindowState(Qt::WindowNoState);
        if (QWindow* win = windowHandle()) {
            win->setWindowState(Qt::WindowNoState);
        }
        setWindowOpacity(0.0);
        if (launcherMaximized) {
            showMaximized();
        } else if (launcherFullScreen) {
            showFullScreen();
        } else {
            showNormal();
            // Set geometry AFTER show so our move()/resize() has the final
            // word.  On Windows, ShowWindow(SW_SHOWNORMAL) can adjust the
            // position using stale placement data; applying geometry after
            // the show overrides that.  The window is at opacity 0, so the
            // brief intermediate position is invisible.
            move(launcherPos);
            resize(launcherSize);
        }
        raise();
        activateWindow();