Qt: Check for a sane window geometry.

On Windows (and probably X11) it's possible to set an offscreen window
geometry. Add a rect_on_screen function to qt_ui_utils and use it as a
sanity check in MainWindow::loadWindowGeometry.

If this doesn't work well (e.g. if we end up with dueling Qt and GTK+
geometries) we might want to create separate Qt and GTK+ preferences.

Bug: 11568
Change-Id: Icde1181671770356e87f07d584894ec3148e1bd2
Reviewed-on: https://code.wireshark.org/review/11584
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/ui/qt/qt_ui_utils.cpp b/ui/qt/qt_ui_utils.cpp
index aee727ab8b..67bf510b0e 100644
--- a/ui/qt/qt_ui_utils.cpp
+++ b/ui/qt/qt_ui_utils.cpp
@@ -41,7 +41,9 @@
 #include <QDir>
 #include <QFileInfo>
 #include <QFontDatabase>
+#include <QGuiApplication>
 #include <QProcess>
+#include <QScreen>
 #include <QUrl>
 #include <QUuid>
 
@@ -231,6 +233,16 @@ void desktop_show_in_folder(const QString file_path)
     }
 }
 
+bool rect_on_screen(const QRect &rect)
+{
+    foreach (const QScreen *screen, QGuiApplication::screens()) {
+        if (screen->availableGeometry().contains(rect))
+            return true;
+    }
+
+    return false;
+}
+
 /*
  * Editor modelines
  *