Qt: Allocate packet list records using wmem.

Add PacketListRecord::operator new, which uses wmem_alloc. Roughly
matches the GTK+ UI behavior. Add ColumnTextList which also uses
wmem_alloc.

Lazily allocate our column text.

Change-Id: I86a63cd8ace7764eaab1561bf71b4358af72fe03
Reviewed-on: https://code.wireshark.org/review/16418
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/ui/qt/packet_list_record.h b/ui/qt/packet_list_record.h
index 7c23c43ea8..80d9cf7efa 100644
--- a/ui/qt/packet_list_record.h
+++ b/ui/qt/packet_list_record.h
@@ -38,10 +38,17 @@
 struct conversation;
 struct _GStringChunk;
 
+class ColumnTextList;
+
 class PacketListRecord
 {
 public:
     PacketListRecord(frame_data *frameData);
+
+    // Allocate our records using wmem.
+    static void *operator new(size_t size);
+    static void operator delete(void *) {}
+
     // Return the string value for a column. Data is cached if possible.
     const QByteArray columnString(capture_file *cap_file, int column, bool colorized = false);
     frame_data *frameData() const { return fdata_; }
@@ -60,7 +67,7 @@ public:
 
 private:
     /** The column text for some columns */
-    QList<const char *> col_text_;
+    ColumnTextList *col_text_;
 
     frame_data *fdata_;
     int lines_;