gui, tracker/{aruco,pt}, api: detect whether widget is visible on screen

Sadly, it's only implemented right now on win32.

Remove "set enabled" code for the video widget since it only works for
explicit window minimization, not covering by other windows.

1 files changed, 1 insertions, 27 deletions

diff --git a/gui/ui.cpp b/gui/ui.cpp
index 37b9b748..2feb806b 100644
--- a/gui/ui.cpp
+++ b/gui/ui.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2015, Stanislaw Halik <sthalik@misaki.pl>
+/* Copyright (c) 2013-2016, Stanislaw Halik <sthalik@misaki.pl>
 
  * Permission to use, copy, modify, and/or distribute this
  * software for any purpose with or without fee is hereby granted,
@@ -124,8 +124,6 @@ MainWindow::MainWindow() :
 
     register_shortcuts();
 
-    connect(this, &MainWindow::emit_minimized, this, &MainWindow::mark_minimized, Qt::QueuedConnection);
-
     ui.btnStartTracker->setFocus();
 }
 
@@ -558,30 +556,6 @@ void MainWindow::restore_from_tray(QSystemTrayIcon::ActivationReason)
     activateWindow(); // for Windows
 }
 
-void MainWindow::changeEvent(QEvent* e)
-{
-    if (e->type() == QEvent::WindowStateChange)
-    {
-        const bool is_minimized = windowState() & Qt::WindowMinimized;
-
-        if (s.tray_enabled && is_minimized)
-        {
-            if (!tray)
-                ensure_tray();
-            hide();
-        }
-
-        emit_minimized(is_minimized);
-    }
-
-    QMainWindow::changeEvent(e);
-}
-
-void MainWindow::mark_minimized(bool is_minimized)
-{
-    ui.video_frame->setEnabled(!is_minimized);
-}
-
 void MainWindow::maybe_start_profile_from_executable()
 {
     if (!work)