Qt: ByteViewText hover information.

When the user hovers over a byte view field, highlight it and show a
description in the status bar.

Add a "byte" status bar context and fix a label stack pop bug.

Keep proto_find_field_from_offset from matching generated items.
Otherwise hovering and selecting finds things like GeoIP entries and
checksum validation information. This affects the GTK+ UI as well.

Change-Id: Ic81c0d8159510a72d30c41f961807d8a48d05e16
Reviewed-on: https://code.wireshark.org/review/4943
Reviewed-by: Gerald Combs <gerald@wireshark.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/ui/qt/main_status_bar.cpp b/ui/qt/main_status_bar.cpp
index 59f96363bd..098e305991 100644
--- a/ui/qt/main_status_bar.cpp
+++ b/ui/qt/main_status_bar.cpp
@@ -46,6 +46,7 @@ enum StatusContext {
     STATUS_CTX_MAIN,
     STATUS_CTX_FILE,
     STATUS_CTX_FIELD,
+    STATUS_CTX_BYTE,
     STATUS_CTX_FILTER,
     STATUS_CTX_TEMPORARY
 };
@@ -251,6 +252,20 @@ void MainStatusBar::popFieldStatus() {
     info_status_.popText(STATUS_CTX_FIELD);
 }
 
+void MainStatusBar::pushByteStatus(QString &message)
+{
+    if (message.isNull()) {
+        popByteStatus();
+    } else {
+        info_status_.pushText(message, STATUS_CTX_BYTE);
+    }
+}
+
+void MainStatusBar::popByteStatus()
+{
+    info_status_.popText(STATUS_CTX_BYTE);
+}
+
 void MainStatusBar::pushFilterStatus(QString &message) {
     info_status_.pushText(message, STATUS_CTX_FILTER);
     expertUpdate();