be8a400053
Use QTextLayout to draw each line in ByteViewText instead of drawing fragments ourselves. Build our pixel-to-byte-offset map when we draw our first line, which should hopefully make it more accurate. This should fix layout and hover issues on some systems. Start moving common code to DataPrinter. Mark prefs.gui_hex_dump_highlight_style GTK+ only. Bug: 11844 Change-Id: Ifda16ae7dc1a5ea22570c0bfd0eb20cee621bfc9 Reviewed-on: https://code.wireshark.org/review/24717 Reviewed-by: Gerald Combs <gerald@wireshark.org> Petri-Dish: Gerald Combs <gerald@wireshark.org> Tested-by: Petri Dish Buildbot Reviewed-by: Roland Knall <rknall@gmail.com>
147 lines
3.7 KiB
C++
147 lines
3.7 KiB
C++
/* byte_view_text.h
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef BYTE_VIEW_TEXT_H
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#define BYTE_VIEW_TEXT_H
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#include <config.h>
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#include "ui/recent.h"
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#include <QAbstractScrollArea>
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#include <QFont>
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#include <QVector>
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#include <QMenu>
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#include <QSize>
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#include <QString>
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#include <QTextLayout>
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#include <QVector>
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// XXX - Is there any reason we shouldn't add ByteViewImage, etc?
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class ByteViewText : public QAbstractScrollArea
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{
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Q_OBJECT
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public:
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explicit ByteViewText(QByteArray data, packet_char_enc encoding = PACKET_CHAR_ENC_CHAR_ASCII, QWidget *parent = 0);
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~ByteViewText();
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virtual QSize minimumSizeHint() const;
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void setFormat(bytes_view_type format);
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bool isEmpty() const;
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QByteArray viewData();
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signals:
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void byteHovered(int pos);
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void byteSelected(int pos);
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public slots:
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void reset();
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void setMonospaceFont(const QFont &mono_font);
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void markProtocol(int start, int length);
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void markField(int start, int length);
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void markAppendix(int start, int length);
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void moveToOffset(int pos);
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protected:
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virtual void paintEvent(QPaintEvent *);
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virtual void resizeEvent(QResizeEvent *);
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virtual void mousePressEvent (QMouseEvent * event);
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virtual void mouseMoveEvent (QMouseEvent * event);
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virtual void leaveEvent(QEvent *event);
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virtual void contextMenuEvent(QContextMenuEvent *event);
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private:
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// Text highlight modes.
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typedef enum {
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ModeNormal,
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ModeField,
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ModeProtocol,
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ModeOffsetNormal,
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ModeOffsetField,
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ModeHover
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} HighlightMode;
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QTextLayout *layout_;
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QByteArray data_;
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void drawLine(QPainter *painter, const int offset, const int row_y);
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bool addFormatRange(QList<QTextLayout::FormatRange> &fmt_list, int start, int length, HighlightMode mode);
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bool addHexFormatRange(QList<QTextLayout::FormatRange> &fmt_list, int mark_start, int mark_length, int tvb_offset, int max_tvb_pos, HighlightMode mode);
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bool addAsciiFormatRange(QList<QTextLayout::FormatRange> &fmt_list, int mark_start, int mark_length, int tvb_offset, int max_tvb_pos, HighlightMode mode);
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void scrollToByte(int byte);
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void updateScrollbars();
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int byteOffsetAtPixel(QPoint pos);
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void createContextMenu();
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int offsetChars(bool include_pad = true);
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int offsetPixels();
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int hexPixels();
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int asciiPixels();
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int totalPixels();
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static const int separator_interval_;
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// Fonts and colors
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QFont mono_font_;
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QColor offset_normal_fg_;
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QColor offset_field_fg_;
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// Data
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packet_char_enc encoding_; // ASCII or EBCDIC
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QMenu ctx_menu_;
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// Data highlight
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int hovered_byte_offset_;
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bool hovered_byte_lock_;
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int proto_start_;
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int proto_len_;
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int field_start_;
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int field_len_;
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int field_a_start_;
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int field_a_len_;
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bool show_offset_; // Should we show the byte offset?
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bool show_hex_; // Should we show the hex display?
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bool show_ascii_; // Should we show the ASCII display?
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int row_width_; // Number of bytes per line
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qreal font_width_; // Single character width and text margin. NOTE: Use fontMetrics::width for multiple characters.
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int line_height_; // Font line spacing
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// Data selection
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QVector<int> x_pos_to_column_;
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private slots:
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void setHexDisplayFormat(QAction *action);
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void setCharacterEncoding(QAction *action);
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};
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#endif // BYTE_VIEW_TEXT_H
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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