#include <QApplication>
#include <QClipboard>
+#include <QDebug>
#include <QFont>
#include <QKeyEvent>
#include <QScrollBar>
#include "QHexView.hpp"
-using std::size_t;
-
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;
-DataStorageArray::DataStorageArray(const QByteArray &arr)
-{
- data_ = arr;
-}
-
-QByteArray DataStorageArray::getData(size_t position, size_t length)
-{
- return data_.mid(position, length);
-}
-
-size_t DataStorageArray::size()
-{
- return data_.count();
-}
-
-
QHexView::QHexView(QWidget *parent):
QAbstractScrollArea(parent),
- pdata_(nullptr)
+ mode_(ChunkedDataMode),
+ data_(nullptr),
+ selectBegin_(0),
+ selectEnd_(0),
+ cursorPos_(0)
{
setFont(QFont("Courier", 10));
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
+ }
}
-QHexView::~QHexView()
+void QHexView::setMode(Mode m)
{
- if (pdata_)
- delete pdata_;
+ mode_ = m;
+
+ // This is not expected to be set when data is showing,
+ // so we don't update the viewport here
}
-void QHexView::setData(DataStorage *pData)
+void QHexView::setData(const DecodeBinaryClass* data)
{
- verticalScrollBar()->setValue(0);
+ data_ = data;
- if (pdata_)
- delete pdata_;
+ size_t size = 0;
+ size_t chunks = data_->chunks.size();
+ for (size_t i = 0; i < chunks; i++)
+ size += data_->chunks[i].data.size();
+ data_size_ = size;
- pdata_ = pData;
- cursorPos_ = 0;
- resetSelection(0);
+ viewport()->update();
+}
+
+void QHexView::clear()
+{
+ verticalScrollBar()->setValue(0);
+ data_ = nullptr;
+ data_size_ = 0;
+
+ viewport()->update();
}
void QHexView::showFromOffset(size_t offset)
{
- if (pdata_ && (offset < pdata_->size())) {
+ if (data_ && (offset < data_size_)) {
setCursorPos(offset * 2);
int cursorY = cursorPos_ / (2 * BYTES_PER_LINE);
verticalScrollBar() -> setValue(cursorY);
}
+
+ viewport()->update();
}
-void QHexView::clear()
+void QHexView::initialize_byte_iterator(size_t offset)
{
- verticalScrollBar()->setValue(0);
+ 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
{
- if (!pdata_)
- return QSize(0, 0);
+ size_t width = posAscii_ + (BYTES_PER_LINE * charWidth_);
+
+ if (verticalScrollBar()->isEnabled())
+ width += GAP_ASCII_SLIDER + verticalScrollBar()->width();
- size_t width = posAscii_ + (BYTES_PER_LINE * charWidth_) +
- GAP_ASCII_SLIDER + verticalScrollBar()->width();
+ if (!data_ || (data_size_ == 0))
+ return QSize(width, 0);
- size_t height = pdata_->size() / BYTES_PER_LINE;
+ size_t height = data_size_ / BYTES_PER_LINE;
- if (pdata_->size() % BYTES_PER_LINE)
+ if (data_size_ % BYTES_PER_LINE)
height++;
height *= charHeight_;
void QHexView::paintEvent(QPaintEvent *event)
{
- if (!pdata_)
- return;
-
QPainter painter(viewport());
// Calculate and update the widget and paint area sizes
- QSize areaSize = viewport()->size();
QSize widgetSize = getFullSize();
setMinimumWidth(widgetSize.width());
setMaximumWidth(widgetSize.width());
+ QSize areaSize = viewport()->size();
- verticalScrollBar()->setPageStep(areaSize.height() / charHeight_);
- verticalScrollBar()->setRange(0, (widgetSize.height() - areaSize.height()) / charHeight_ + 1);
+ // 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 > (pdata_->size() / BYTES_PER_LINE)) {
- lastLineIdx = pdata_->size() / BYTES_PER_LINE;
- if (pdata_->size() % BYTES_PER_LINE)
+ if (lastLineIdx > (data_size_ / BYTES_PER_LINE)) {
+ lastLineIdx = data_size_ / BYTES_PER_LINE;
+ if (data_size_ % BYTES_PER_LINE)
lastLineIdx++;
}
- // Fill widget and address area backgrounds
- painter.fillRect(event->rect(), palette().color(QPalette::Base));
+ // Fill address area background
painter.fillRect(QRect(posAddr_, event->rect().top(),
posHex_ - (GAP_ADR_HEX / 2), height()), palette().color(QPalette::Window));
}
// Paint hex values
- QBrush regular = painter.brush();
- QBrush selected = QBrush(palette().color(QPalette::Highlight));
- QByteArray data = pdata_->getData(firstLineIdx * BYTES_PER_LINE, (lastLineIdx - firstLineIdx) * BYTES_PER_LINE);
+ 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 = charHeight_;
for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) {
- painter.setBackgroundMode(Qt::OpaqueMode);
-
int x = posHex_;
- for (size_t i = 0; i < BYTES_PER_LINE && ((lineIdx - firstLineIdx) * BYTES_PER_LINE + i) < (size_t)data.size(); i++) {
+ 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.setPen(palette().color(QPalette::Text));
+ 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((data.at((lineIdx - firstLineIdx) * BYTES_PER_LINE + i) & 0xF0) >> 4, 16).toUpper();
+ QString val = QString::number((byte_value & 0xF0) >> 4, 16).toUpper();
painter.drawText(x, y, val);
// Second nibble
- val = QString::number((data.at((lineIdx - firstLineIdx) * BYTES_PER_LINE + i) & 0xF), 16).toUpper();
+ val = QString::number((byte_value & 0xF), 16).toUpper();
painter.drawText(x + charWidth_, y, val);
x += 3 * charWidth_;
}
// Paint ASCII characters
+ initialize_byte_iterator(firstLineIdx * BYTES_PER_LINE);
yStart = charHeight_;
for (size_t lineIdx = firstLineIdx, y = yStart; lineIdx < lastLineIdx; lineIdx++) {
int x = posAscii_;
- for (size_t i = 0; ((lineIdx - firstLineIdx) * BYTES_PER_LINE + i) < (size_t)data.size() && (i < BYTES_PER_LINE); i++) {
- char ch = data[(unsigned int)((lineIdx - firstLineIdx) * BYTES_PER_LINE + i)];
+ 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));
}
setVisible = true;
}
if (event->matches(QKeySequence::MoveToEndOfDocument)) {
- if (pdata_)
- setCursorPos(pdata_->size() * 2);
+ setCursorPos(data_size_ * 2);
resetSelection(cursorPos_);
setVisible = true;
}
// Select commands
if (event->matches(QKeySequence::SelectAll)) {
resetSelection(0);
- if (pdata_)
- setSelection(2 * pdata_->size() + 1);
+ setSelection(2 * data_size_);
setVisible = true;
}
if (event->matches(QKeySequence::SelectNextChar)) {
setVisible = true;
}
if (event->matches(QKeySequence::SelectEndOfDocument)) {
- int pos = 0;
- if (pdata_)
- pos = pdata_->size() * 2;
+ int pos = data_size_ * 2;
setCursorPos(pos);
setSelection(pos);
setVisible = true;
}
if (event->matches(QKeySequence::SelectStartOfDocument)) {
- int pos = 0;
- setCursorPos(pos);
- setSelection(pos);
+ setCursorPos(0);
+ setSelection(0);
setVisible = true;
}
- if (event->matches(QKeySequence::Copy) && (pdata_)) {
+ if (event->matches(QKeySequence::Copy) && (data_)) {
QString text;
- int idx = 0;
- int copyOffset = 0;
-
- QByteArray data = pdata_->getData(selectBegin_ / 2, (selectEnd_ - selectBegin_) / 2 + 1);
- if (selectBegin_ % 2) {
- text += QString::number((data.at((idx+1) / 2) & 0xF), 16);
- text += " ";
- idx++;
- copyOffset = 1;
- }
- int selectedSize = selectEnd_ - selectBegin_;
- while (idx < selectedSize) {
- QString val = QString::number((data.at((copyOffset + idx) / 2) & 0xF0) >> 4, 16);
- if ((idx + 1) < selectedSize) {
- val += QString::number((data.at((copyOffset + idx) / 2) & 0xF), 16);
- val += " ";
- }
- text += val;
+ initialize_byte_iterator(selectBegin_ / 2);
- if ((idx/2) % BYTES_PER_LINE == (BYTES_PER_LINE - 1))
- text += "\n";
+ size_t selectedSize = (selectEnd_ - selectBegin_ + 1) / 2;
+ for (size_t i = 0; i < selectedSize; i++) {
+ uint8_t byte_value = get_next_byte();
- idx += 2;
+ 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);
+ clipboard->setText(text, QClipboard::Clipboard);
if (clipboard->supportsSelection())
- clipboard->setText(text);
+ clipboard->setText(text, QClipboard::Selection);
}
if (setVisible)
size_t QHexView::cursorPosFromMousePos(const QPoint &position)
{
- int pos = -1;
+ 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
- int x = (position.x() + (1.5 * charWidth_ / 2) - posHex_) / charWidth_;
+ 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;
- int firstLineIdx = verticalScrollBar()->value();
- int y = (position.y() / charHeight_) * 2 * BYTES_PER_LINE;
+ size_t firstLineIdx = verticalScrollBar()->value();
+ size_t y = (position.y() / charHeight_) * 2 * BYTES_PER_LINE;
pos = x + y + firstLineIdx * BYTES_PER_LINE * 2;
}
- return pos;
+ size_t max_pos = data_size_ * 2;
+
+ return std::min(pos, max_pos);
}
void QHexView::resetSelection()
if (position < 0)
position = 0;
- int maxPos = 0;
- if (pdata_) {
- maxPos = pdata_->size() * 2;
- if (pdata_->size() % BYTES_PER_LINE)
- maxPos++;
- }
+ int max_pos = data_size_ * 2;
- if (position > maxPos)
- position = maxPos;
+ if (position > max_pos)
+ position = max_pos;
cursorPos_ = position;
}
{
QSize areaSize = viewport()->size();
- int firstLineIdx = verticalScrollBar() -> value();
+ 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);
+ verticalScrollBar()->setValue(cursorY);
+ else
+ if(cursorY >= lastLineIdx)
+ verticalScrollBar()->setValue(cursorY - areaSize.height() / charHeight_ + 1);
}
projects / pulseview.git / blobdiff