Qt: Move all utility widgets to widgets subdirectory

Move all utility widgets to the widgets subdirectory and
add separate source_group for their files

Correct some alphabetization in ui/qt/CMakeLists.txt noticed
during compare.

Change-Id: I2d664edc2b32f126438fb673ea53a5ae94cd43d1
Reviewed-on: https://code.wireshark.org/review/22531
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Roland Knall <rknall@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>

1 files changed, 92 insertions, 0 deletions

diff --git a/ui/qt/widgets/syntax_line_edit.h b/ui/qt/widgets/syntax_line_edit.h
new file mode 100644
index 0000000000..3429614bbc
--- /dev/null
+++ b/ui/qt/widgets/syntax_line_edit.h
@@ -0,0 +1,92 @@
+/* syntax_line_edit.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 SYNTAX_LINE_EDIT_H
+#define SYNTAX_LINE_EDIT_H
+
+#include <QLineEdit>
+
+class QCompleter;
+class QStringListModel;
+
+// Autocompletion is partially implemented. Subclasses must:
+// - Provide buildCompletionList
+// - Call setCompletionTokenChars
+
+class SyntaxLineEdit : public QLineEdit
+{
+    Q_OBJECT
+    Q_PROPERTY(SyntaxState syntaxState READ syntaxState)
+    Q_ENUMS(SyntaxState)
+public:
+    explicit SyntaxLineEdit(QWidget *parent = 0);
+    enum SyntaxState { Empty, Busy, Invalid, Deprecated, Valid };
+
+    SyntaxState syntaxState() const { return syntax_state_; }
+    void setSyntaxState(SyntaxState state = Empty);
+    QString syntaxErrorMessage();
+    QString styleSheet() const;
+    QString deprecatedToken();
+
+    void setCompleter(QCompleter *c);
+    QCompleter *completer() const { return completer_; }
+
+public slots:
+    void setStyleSheet(const QString &style_sheet);
+    // Insert filter text at the current position, adding spaces where needed.
+    void insertFilter(const QString &filter);
+
+    // Built-in syntax checks. Connect textChanged to these as needed.
+    void checkDisplayFilter(QString filter);
+    void checkFieldName(QString field);
+    void checkCustomColumn(QString fields);
+    void checkInteger(QString number);
+
+protected:
+    QCompleter *completer_;
+    QStringListModel *completion_model_;
+    void setCompletionTokenChars(const QString &token_chars) { token_chars_ = token_chars; }
+    bool isComplexFilter(const QString &filter);
+    virtual void buildCompletionList(const QString&) { }
+    // x = Start position, y = length
+    QPoint getTokenUnderCursor();
+
+    virtual bool event(QEvent *event);
+    void completionKeyPressEvent(QKeyEvent *event);
+    void completionFocusInEvent(QFocusEvent *event);
+    virtual void focusOutEvent(QFocusEvent *event);
+
+private:
+    SyntaxState syntax_state_;
+    QString style_sheet_;
+    QString state_style_sheet_;
+    QString syntax_error_message_;
+    QString token_chars_;
+    QColor busy_fg_;
+
+private slots:
+    void insertFieldCompletion(const QString &completion_text);
+
+signals:
+
+};
+
+#endif // SYNTAX_LINE_EDIT_H