Qt: Create models directory

Following the move for widgets and utils directory, moving models
and delegates to the utils directory. Guidelines for this directory are:

 - Implementation of a model
 - Implementation of a delegate
 - Utility class for data storage used by a model

Note: additionally all includes affected by this move have been changed
to absolute path includes, instead of relative ones.

Change-Id: I3bb868af7d3570437682b722a0cd46c906628570
Reviewed-on: https://code.wireshark.org/review/22790
Reviewed-by: Roland Knall <rknall@gmail.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/ui/qt/models/timeline_delegate.h b/ui/qt/models/timeline_delegate.h
new file mode 100644
index 0000000000..bc64c24877
--- /dev/null
+++ b/ui/qt/models/timeline_delegate.h
@@ -0,0 +1,84 @@
+/* timeline_delegate.h
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef TIMELINE_DELEGATE_H
+#define TIMELINE_DELEGATE_H
+
+/*
+ * @file Timeline delegate.
+ *
+ * QStyledItemDelegate subclass that will draw a timeline indicator for
+ * the specified value.
+ *
+ * This is intended to be used in QTreeWidgets to show timelines, e.g. for
+ * conversations.
+ * To use it, first call setItemDelegate:
+ *
+ *   myTreeWidget()->setItemDelegateForColumn(col_time_start_, new TimelineDelegate());
+ *
+ * Then, for each QTreeWidgetItem, set or return a timeline_span for the start and end
+ * of the timeline in pixels relative to the column width.
+ *
+ *   setData(col_start_, Qt::UserRole, start_span);
+ *   setData(col_end_, Qt::UserRole, end_span);
+ *
+ */
+
+#include <QStyledItemDelegate>
+
+// Pixels are relative to item rect and will be clipped.
+struct timeline_span {
+    int start;
+    int width;
+};
+
+Q_DECLARE_METATYPE(timeline_span)
+
+class TimelineDelegate : public QStyledItemDelegate
+{
+    Q_OBJECT
+
+public:
+    TimelineDelegate(QWidget *parent = 0);
+
+    // Make sure QStyledItemDelegate::paint doesn't draw any text.
+    virtual QString displayText(const QVariant &, const QLocale &) const { return QString(); }
+
+protected:
+    void paint(QPainter *painter, const QStyleOptionViewItem &option,
+               const QModelIndex &index) const;
+private:
+};
+
+#endif // TIMELINE_DELEGATE_H
+
+/*
+ * Editor modelines
+ *
+ * Local Variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */