+++ /dev/null
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2015 Victor Anjin <virinext@gmail.com>
- * Copyright (C) 2019 Soeren Apel <soeren@apelpie.net>
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2015
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <QApplication>
-#include <QClipboard>
-#include <QDebug>
-#include <QFont>
-#include <QKeyEvent>
-#include <QScrollBar>
-#include <QSize>
-#include <QPainter>
-#include <QPaintEvent>
-
-#include "QHexView.hpp"
-
-const unsigned int BYTES_PER_LINE = 16;
-const unsigned int HEXCHARS_IN_LINE = BYTES_PER_LINE * 3 - 1;
-const unsigned int GAP_ADR_HEX = 10;
-const unsigned int GAP_HEX_ASCII = 10;
-const unsigned int GAP_ASCII_SLIDER = 5;
-
-
-QHexView::QHexView(QWidget *parent):
- QAbstractScrollArea(parent),
- mode_(ChunkedDataMode),
- data_(nullptr),
- selectBegin_(0),
- selectEnd_(0),
- cursorPos_(0)
-{
- setFont(QFont("Courier", 10));
-
- charWidth_ = fontMetrics().boundingRect('X').width();
- charHeight_ = fontMetrics().height();
-
- // Determine X coordinates of the three sub-areas
- posAddr_ = 0;
- posHex_ = 10 * charWidth_ + GAP_ADR_HEX;
- posAscii_ = posHex_ + HEXCHARS_IN_LINE * charWidth_ + GAP_HEX_ASCII;
-
- setFocusPolicy(Qt::StrongFocus);
-
- if (palette().color(QPalette::ButtonText).toHsv().value() > 127) {
- // Color is bright
- chunk_colors_.emplace_back(100, 149, 237); // QColorConstants::Svg::cornflowerblue
- chunk_colors_.emplace_back(60, 179, 113); // QColorConstants::Svg::mediumseagreen
- chunk_colors_.emplace_back(210, 180, 140); // QColorConstants::Svg::tan
- } else {
- // Color is dark
- chunk_colors_.emplace_back(0, 0, 139); // QColorConstants::Svg::darkblue
- chunk_colors_.emplace_back(34, 139, 34); // QColorConstants::Svg::forestgreen
- chunk_colors_.emplace_back(160, 82, 45); // QColorConstants::Svg::sienna
- }
-}
-
-void QHexView::set_mode(Mode m)
-{
- mode_ = m;
-
- // This is not expected to be set when data is showing,
- // so we don't update the viewport here
-}
-
-void QHexView::set_data(const DecodeBinaryClass* data)
-{
- data_ = data;
-
- size_t size = 0;
- if (data) {
- size_t chunks = data_->chunks.size();
- for (size_t i = 0; i < chunks; i++)
- size += data_->chunks[i].data.size();
- }
- data_size_ = size;
-
- viewport()->update();
-}
-
-unsigned int QHexView::get_bytes_per_line() const
-{
- return BYTES_PER_LINE;
-}
-
-void QHexView::clear()
-{
- verticalScrollBar()->setValue(0);
- data_ = nullptr;
- data_size_ = 0;
-
- viewport()->update();
-}
-
-void QHexView::showFromOffset(size_t offset)
-{
- if (data_ && (offset < data_size_)) {
- setCursorPos(offset * 2);
-
- int cursorY = cursorPos_ / (2 * BYTES_PER_LINE);
- verticalScrollBar() -> setValue(cursorY);
- }
-
- viewport()->update();
-}
-
-QSizePolicy QHexView::sizePolicy() const
-{
- return QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
-}
-
-pair<size_t, size_t> QHexView::get_selection() const
-{
- size_t start = selectBegin_ / 2;
- size_t end = selectEnd_ / 2;
-
- if (start == end) {
- // Nothing is currently selected
- start = 0;
- end = data_size_;
- } if (end < data_size_)
- end++;
-
- return std::make_pair(start, end);
-}
-
-size_t QHexView::create_hex_line(size_t start, size_t end, QString* dest,
- bool with_offset, bool with_ascii)
-{
- dest->clear();
-
- // Determine start address for the row
- uint64_t row = start / BYTES_PER_LINE;
- uint64_t offset = row * BYTES_PER_LINE;
- end = std::min((uint64_t)end, offset + BYTES_PER_LINE);
-
- if (with_offset)
- dest->append(QString("%1 ").arg(row * BYTES_PER_LINE, 10, 16, QChar('0')).toUpper());
-
- initialize_byte_iterator(offset);
- for (size_t i = offset; i < offset + BYTES_PER_LINE; i++) {
- uint8_t value = 0;
-
- if (i < end)
- value = get_next_byte();
-
- if ((i < start) || (i >= end))
- dest->append(" ");
- else
- dest->append(QString("%1 ").arg(value, 2, 16, QChar('0')).toUpper());
- }
-
- if (with_ascii) {
- initialize_byte_iterator(offset);
- for (size_t i = offset; i < end; i++) {
- uint8_t value = get_next_byte();
-
- if ((value < 0x20) || (value > 0x7E))
- value = '.';
-
- if (i < start)
- dest->append(' ');
- else
- dest->append((char)value);
- }
- }
-
- return end;
-}
-
-void QHexView::initialize_byte_iterator(size_t offset)
-{
- current_chunk_id_ = 0;
- current_chunk_offset_ = 0;
- current_offset_ = offset;
-
- size_t chunks = data_->chunks.size();
- for (size_t i = 0; i < chunks; i++) {
- size_t size = data_->chunks[i].data.size();
-
- if (offset >= size) {
- current_chunk_id_++;
- offset -= size;
- } else {
- current_chunk_offset_ = offset;
- break;
- }
- }
-
- if (current_chunk_id_ < data_->chunks.size())
- current_chunk_ = data_->chunks[current_chunk_id_];
-}
-
-uint8_t QHexView::get_next_byte(bool* is_next_chunk)
-{
- if (is_next_chunk != nullptr)
- *is_next_chunk = (current_chunk_offset_ == 0);
-
- uint8_t v = 0;
- if (current_chunk_offset_ < current_chunk_.data.size())
- v = current_chunk_.data[current_chunk_offset_];
-
- current_offset_++;
- current_chunk_offset_++;
-
- if (current_offset_ > data_size_) {
- qWarning() << "QHexView::get_next_byte() overran binary data boundary:" <<
- current_offset_ << "of" << data_size_ << "bytes";
- return 0xEE;
- }
-
- if ((current_chunk_offset_ == current_chunk_.data.size()) && (current_offset_ < data_size_)) {
- current_chunk_id_++;
- current_chunk_offset_ = 0;
- current_chunk_ = data_->chunks[current_chunk_id_];
- }
-
- return v;
-}
-
-QSize QHexView::getFullSize() const
-{
- size_t width = posAscii_ + (BYTES_PER_LINE * charWidth_);
-
- if (verticalScrollBar()->isEnabled())
- width += GAP_ASCII_SLIDER + verticalScrollBar()->width();
-
- if (!data_ || (data_size_ == 0))
- return QSize(width, 0);
-
- size_t height = data_size_ / BYTES_PER_LINE;
-
- if (data_size_ % BYTES_PER_LINE)
- height++;
-
- height *= charHeight_;
-
- return QSize(width, height);
-}
-
-void QHexView::paintEvent(QPaintEvent *event)
-{
- QPainter painter(viewport());
-
- // Calculate and update the widget and paint area sizes
- QSize widgetSize = getFullSize();
- setMinimumWidth(widgetSize.width());
- setMaximumWidth(widgetSize.width());
- QSize areaSize = viewport()->size() - QSize(0, charHeight_);
-
- // Only show scrollbar if the content goes beyond the visible area
- if (widgetSize.height() > areaSize.height()) {
- verticalScrollBar()->setEnabled(true);
- verticalScrollBar()->setPageStep(areaSize.height() / charHeight_);
- verticalScrollBar()->setRange(0, ((widgetSize.height() - areaSize.height())) / charHeight_ + 1);
- } else
- verticalScrollBar()->setEnabled(false);
-
- // Fill widget background
- painter.fillRect(event->rect(), palette().color(QPalette::Base));
-
- if (!data_ || (data_size_ == 0)) {
- painter.setPen(palette().color(QPalette::Text));
- QString s = tr("No data available");
- int x = (areaSize.width() - fontMetrics().boundingRect(s).width()) / 2;
- int y = areaSize.height() / 2;
- painter.drawText(x, y, s);
- return;
- }
-
- // Determine first/last line indices
- size_t firstLineIdx = verticalScrollBar()->value();
-
- size_t lastLineIdx = firstLineIdx + (areaSize.height() / charHeight_);
- if (lastLineIdx > (data_size_ / BYTES_PER_LINE)) {
- lastLineIdx = data_size_ / BYTES_PER_LINE;
- if (data_size_ % BYTES_PER_LINE)
- lastLineIdx++;
- }
-
- // Paint divider line between hex and ASCII areas
- int line_x = posAscii_ - (GAP_HEX_ASCII / 2);
- painter.setPen(palette().color(QPalette::Midlight));
- painter.drawLine(line_x, event->rect().top(), line_x, height());
-
- // Fill address area background
- painter.fillRect(QRect(posAddr_, event->rect().top(),
- posHex_ - (GAP_ADR_HEX / 2), height()), palette().color(QPalette::Window));
- painter.fillRect(QRect(posAddr_, event->rect().top(),
- posAscii_ - (GAP_HEX_ASCII / 2), charHeight_ + 2), palette().color(QPalette::Window));
-
- // Paint address area
- painter.setPen(palette().color(QPalette::ButtonText));
-
- int yStart = 2 * charHeight_;
- for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) {
-
- QString address = QString("%1").arg(lineIdx * 16, 10, 16, QChar('0')).toUpper();
- painter.drawText(posAddr_, y, address);
- y += charHeight_;
- }
-
- // Paint top row with hex offsets
- painter.setPen(palette().color(QPalette::ButtonText));
- for (int offset = 0; offset <= 0xF; offset++)
- painter.drawText(posHex_ + (1 + offset * 3) * charWidth_,
- charHeight_ - 3, QString::number(offset, 16).toUpper());
-
- // Paint hex values
- QBrush regular = palette().buttonText();
- QBrush selected = palette().highlight();
-
- bool multiple_chunks = (data_->chunks.size() > 1);
- unsigned int chunk_color = 0;
-
- initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE);
- yStart = 2 * charHeight_;
- for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) {
-
- int x = posHex_;
- for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) {
- size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2;
-
- // Fetch byte
- bool is_next_chunk;
- uint8_t byte_value = get_next_byte(&is_next_chunk);
-
- if (is_next_chunk) {
- chunk_color++;
- if (chunk_color == chunk_colors_.size())
- chunk_color = 0;
- }
-
- if ((pos >= selectBegin_) && (pos < selectEnd_)) {
- painter.setBackgroundMode(Qt::OpaqueMode);
- painter.setBackground(selected);
- painter.setPen(palette().color(QPalette::HighlightedText));
- } else {
- painter.setBackground(regular);
- painter.setBackgroundMode(Qt::TransparentMode);
- if (!multiple_chunks)
- painter.setPen(palette().color(QPalette::Text));
- else
- painter.setPen(chunk_colors_[chunk_color]);
- }
-
- // First nibble
- QString val = QString::number((byte_value & 0xF0) >> 4, 16).toUpper();
- painter.drawText(x, y, val);
-
- // Second nibble
- val = QString::number((byte_value & 0xF), 16).toUpper();
- painter.drawText(x + charWidth_, y, val);
-
- if ((pos >= selectBegin_) && (pos < selectEnd_ - 1) && (i < BYTES_PER_LINE - 1))
- painter.drawText(x + 2 * charWidth_, y, QString(' '));
-
- x += 3 * charWidth_;
- }
-
- y += charHeight_;
- }
-
- // Paint ASCII characters
- initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE);
- yStart = 2 * charHeight_;
- for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) {
-
- int x = posAscii_;
- for (size_t i = 0; (i < BYTES_PER_LINE) && (current_offset_ < data_size_); i++) {
- // Fetch byte
- uint8_t ch = get_next_byte();
-
- if ((ch < 0x20) || (ch > 0x7E))
- ch = '.';
-
- size_t pos = (lineIdx * BYTES_PER_LINE + i) * 2;
- if ((pos >= selectBegin_) && (pos < selectEnd_)) {
- painter.setBackgroundMode(Qt::OpaqueMode);
- painter.setBackground(selected);
- painter.setPen(palette().color(QPalette::HighlightedText));
- } else {
- painter.setBackgroundMode(Qt::TransparentMode);
- painter.setBackground(regular);
- painter.setPen(palette().color(QPalette::Text));
- }
-
- painter.drawText(x, y, QString(ch));
- x += charWidth_;
- }
-
- y += charHeight_;
- }
-
- // Paint cursor
- if (hasFocus()) {
- int x = (cursorPos_ % (2 * BYTES_PER_LINE));
- int y = cursorPos_ / (2 * BYTES_PER_LINE);
- y -= firstLineIdx;
- int cursorX = (((x / 2) * 3) + (x % 2)) * charWidth_ + posHex_;
- int cursorY = charHeight_ + y * charHeight_ + 4;
- painter.fillRect(cursorX, cursorY, 2, charHeight_, palette().color(QPalette::WindowText));
- }
-}
-
-void QHexView::keyPressEvent(QKeyEvent *event)
-{
- bool setVisible = false;
-
- // Cursor movements
- if (event->matches(QKeySequence::MoveToNextChar)) {
- setCursorPos(cursorPos_ + 1);
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToPreviousChar)) {
- setCursorPos(cursorPos_ - 1);
- resetSelection(cursorPos_);
- setVisible = true;
- }
-
- if (event->matches(QKeySequence::MoveToEndOfLine)) {
- setCursorPos(cursorPos_ | ((BYTES_PER_LINE * 2) - 1));
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToStartOfLine)) {
- setCursorPos(cursorPos_ | (cursorPos_ % (BYTES_PER_LINE * 2)));
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToPreviousLine)) {
- setCursorPos(cursorPos_ - BYTES_PER_LINE * 2);
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToNextLine)) {
- setCursorPos(cursorPos_ + BYTES_PER_LINE * 2);
- resetSelection(cursorPos_);
- setVisible = true;
- }
-
- if (event->matches(QKeySequence::MoveToNextPage)) {
- setCursorPos(cursorPos_ + (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE);
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToPreviousPage)) {
- setCursorPos(cursorPos_ - (viewport()->height() / charHeight_ - 1) * 2 * BYTES_PER_LINE);
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToEndOfDocument)) {
- setCursorPos(data_size_ * 2);
- resetSelection(cursorPos_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::MoveToStartOfDocument)) {
- setCursorPos(0);
- resetSelection(cursorPos_);
- setVisible = true;
- }
-
- // Select commands
- if (event->matches(QKeySequence::SelectAll)) {
- resetSelection(0);
- setSelection(2 * data_size_);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectNextChar)) {
- int pos = cursorPos_ + 1;
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectPreviousChar)) {
- int pos = cursorPos_ - 1;
- setSelection(pos);
- setCursorPos(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectEndOfLine)) {
- int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE)) + (2 * BYTES_PER_LINE);
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectStartOfLine)) {
- int pos = cursorPos_ - (cursorPos_ % (2 * BYTES_PER_LINE));
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectPreviousLine)) {
- int pos = cursorPos_ - (2 * BYTES_PER_LINE);
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectNextLine)) {
- int pos = cursorPos_ + (2 * BYTES_PER_LINE);
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
-
- if (event->matches(QKeySequence::SelectNextPage)) {
- int pos = cursorPos_ + (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE);
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectPreviousPage)) {
- int pos = cursorPos_ - (((viewport()->height() / charHeight_) - 1) * 2 * BYTES_PER_LINE);
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectEndOfDocument)) {
- int pos = data_size_ * 2;
- setCursorPos(pos);
- setSelection(pos);
- setVisible = true;
- }
- if (event->matches(QKeySequence::SelectStartOfDocument)) {
- setCursorPos(0);
- setSelection(0);
- setVisible = true;
- }
-
- if (event->matches(QKeySequence::Copy) && (data_)) {
- QString text;
-
- initialize_byte_iterator(selectBegin_ / 2);
-
- size_t selectedSize = (selectEnd_ - selectBegin_ + 1) / 2;
- for (size_t i = 0; i < selectedSize; i++) {
- uint8_t byte_value = get_next_byte();
-
- QString s = QString::number((byte_value & 0xF0) >> 4, 16).toUpper() +
- QString::number((byte_value & 0xF), 16).toUpper() + " ";
- text += s;
-
- if (i % BYTES_PER_LINE == (BYTES_PER_LINE - 1))
- text += "\n";
- }
-
- QClipboard *clipboard = QApplication::clipboard();
- clipboard->setText(text, QClipboard::Clipboard);
- if (clipboard->supportsSelection())
- clipboard->setText(text, QClipboard::Selection);
- }
-
- if (setVisible)
- ensureVisible();
-
- viewport()->update();
-}
-
-void QHexView::mouseMoveEvent(QMouseEvent *event)
-{
- int actPos = cursorPosFromMousePos(event->pos());
- setCursorPos(actPos);
- setSelection(actPos);
-
- viewport()->update();
-}
-
-void QHexView::mousePressEvent(QMouseEvent *event)
-{
- int cPos = cursorPosFromMousePos(event->pos());
-
- if ((QApplication::keyboardModifiers() & Qt::ShiftModifier) && (event->button() == Qt::LeftButton))
- setSelection(cPos);
- else
- resetSelection(cPos);
-
- setCursorPos(cPos);
-
- viewport()->update();
-}
-
-size_t QHexView::cursorPosFromMousePos(const QPoint &position)
-{
- size_t pos = -1;
-
- if (((size_t)position.x() >= posHex_) &&
- ((size_t)position.x() < (posHex_ + HEXCHARS_IN_LINE * charWidth_))) {
-
- // Note: We add 1.5 character widths so that selection across
- // byte gaps is smoother
- size_t x = (position.x() + (1.5 * charWidth_ / 2) - posHex_) / charWidth_;
-
- // Note: We allow only full bytes to be selected, not nibbles,
- // so we round to the nearest byte gap
- x = (2 * x + 1) / 3;
-
- size_t firstLineIdx = verticalScrollBar()->value();
- size_t y = ((position.y() / charHeight_) - 1) * 2 * BYTES_PER_LINE;
- pos = x + y + firstLineIdx * BYTES_PER_LINE * 2;
- }
-
- size_t max_pos = data_size_ * 2;
-
- return std::min(pos, max_pos);
-}
-
-void QHexView::resetSelection()
-{
- selectBegin_ = selectInit_;
- selectEnd_ = selectInit_;
-}
-
-void QHexView::resetSelection(int pos)
-{
- if (pos < 0)
- pos = 0;
-
- selectInit_ = pos;
- selectBegin_ = pos;
- selectEnd_ = pos;
-}
-
-void QHexView::setSelection(int pos)
-{
- if (pos < 0)
- pos = 0;
-
- if ((size_t)pos >= selectInit_) {
- selectEnd_ = pos;
- selectBegin_ = selectInit_;
- } else {
- selectBegin_ = pos;
- selectEnd_ = selectInit_;
- }
-}
-
-void QHexView::setCursorPos(int position)
-{
- if (position < 0)
- position = 0;
-
- int max_pos = data_size_ * 2;
-
- if (position > max_pos)
- position = max_pos;
-
- cursorPos_ = position;
-}
-
-void QHexView::ensureVisible()
-{
- QSize areaSize = viewport()->size();
-
- int firstLineIdx = verticalScrollBar()->value();
- int lastLineIdx = firstLineIdx + areaSize.height() / charHeight_;
-
- int cursorY = cursorPos_ / (2 * BYTES_PER_LINE);
-
- if (cursorY < firstLineIdx)
- verticalScrollBar()->setValue(cursorY);
- else
- if(cursorY >= lastLineIdx)
- verticalScrollBar()->setValue(cursorY - areaSize.height() / charHeight_ + 1);
-}
projects / pulseview.git / blobdiff