add: Reduce the rolling trigger sensitivity of logic analyzer

DSView/pv/appcontrol.cpp

@@ -26,6 +26,7 @@
 #include <QDir>
 #include <QCoreApplication>
 #include <QDebug>
+#include <QWidget>
 
 #include "devicemanager.h"
 #include "sigsession.h"
@@ -35,7 +36,8 @@
 AppControl::AppControl()
 {
     sr_ctx = NULL;
-
+    _topWindow = NULL;
+    
     _device_manager = new pv::DeviceManager();
     _session = new pv::SigSession(_device_manager);
 }
@@ -149,3 +151,11 @@ const char *AppControl::GetLastError()
     sr_log_loglevel_set(level);
 	srd_log_loglevel_set(level);
  }
+
+ bool AppControl::TopWindowIsMaximized()
+ {
+     if (_topWindow != NULL){
+         return _topWindow->isMaximized();
+     }
+     return false;
+ }