Commit dd0f2f18 authored by ck's avatar ck
Browse files

BinEditor: Add a bit of value interpretation.

parent ae38de5c
......@@ -40,10 +40,12 @@
#include <QtGui/QAction>
#include <QtGui/QClipboard>
#include <QtGui/QFontMetrics>
#include <QtGui/QHelpEvent>
#include <QtGui/QMenu>
#include <QtGui/QMessageBox>
#include <QtGui/QPainter>
#include <QtGui/QScrollBar>
#include <QtGui/QToolTip>
#include <QtGui/QWheelEvent>
using namespace BINEditor;
......@@ -1030,7 +1032,64 @@ bool BinEditor::event(QEvent *e) {
break;
default:;
}
} else if (e->type() == QEvent::ToolTip) {
bool hide = true;
int selStart = selectionStart();
int selEnd = selectionEnd();
int byteCount = selEnd - selStart;
if (byteCount <= 0) {
selStart = m_cursorPosition;
selEnd = selStart + 1;
byteCount = 1;
}
if (byteCount <= 8) {
const QPoint &startPoint = offsetToPos(selStart);
const QPoint &endPoint = offsetToPos(selEnd);
const QPoint expandedEndPoint
= QPoint(endPoint.x(), endPoint.y() + m_lineHeight);
const QRect selRect(startPoint, expandedEndPoint);
const QHelpEvent * const helpEvent = static_cast<QHelpEvent *>(e);
const QPoint &mousePos = helpEvent->pos();
if (selRect.contains(mousePos)) {
quint64 beValue, leValue;
asIntegers(selStart, byteCount, beValue, leValue);
QString leSigned;
QString beSigned;
switch (byteCount) {
case 8: case 7: case 6: case 5:
leSigned = QString::number(static_cast<qint64>(leValue));
beSigned = QString::number(static_cast<qint64>(beValue));
break;
case 4: case 3:
leSigned = QString::number(static_cast<qint32>(leValue));
beSigned = QString::number(static_cast<qint32>(beValue));
break;
case 2:
leSigned = QString::number(static_cast<qint16>(leValue));
beSigned = QString::number(static_cast<qint16>(beValue));
break;
case 1:
leSigned = QString::number(static_cast<qint8>(leValue));
beSigned = QString::number(static_cast<qint8>(beValue));
break;
}
hide = false;
QToolTip::showText(helpEvent->globalPos(),
tr("Decimal unsigned value (little endian): %1\n"
"Decimal unsigned value (big endian): %2\n"
"Decimal signed value (little endian): %3\n"
"Decimal signed value (big endian): %4")
.arg(QString::number(leValue))
.arg(QString::number(beValue))
.arg(leSigned).arg(beSigned));
}
}
if (hide)
QToolTip::hideText();
e->accept();
return true;
}
return QAbstractScrollArea::event(e);
}
......@@ -1271,13 +1330,7 @@ void BinEditor::contextMenuEvent(QContextMenuEvent *event)
quint64 beAddress = 0;
quint64 leAddress = 0;
if (byteCount <= 8) {
const QByteArray &data = dataMid(selStart, byteCount);
for (int pos = 0; pos < byteCount; ++pos) {
const quint64 val = static_cast<quint64>(data.at(pos)) & 0xff;
beAddress += val << (pos * 8);
leAddress += val << ((byteCount - pos - 1) * 8);
}
asIntegers(selStart, byteCount, beAddress, leAddress);
setupJumpToMenuAction(&contextMenu, &jumpToBeAddressHere,
&jumpToBeAddressNewWindow, beAddress);
......@@ -1335,3 +1388,22 @@ void BinEditor::setNewWindowRequestAllowed()
{
m_canRequestNewWindow = true;
}
QPoint BinEditor::offsetToPos(int offset)
{
const int x = m_labelWidth + (offset % 16) * m_columnWidth;
const int y = (offset / 16) * m_lineHeight;
return QPoint(x, y);
}
void BinEditor::asIntegers(int offset, int count, quint64 &beValue,
quint64 &leValue)
{
beValue = leValue = 0;
const QByteArray &data = dataMid(offset, count);
for (int pos = 0; pos < count; ++pos) {
const quint64 val = static_cast<quint64>(data.at(pos)) & 0xff;
beValue += val << (pos * 8);
leValue += val << ((count - pos - 1) * 8);
}
}
......@@ -169,6 +169,9 @@ private:
QByteArray dataMid(int from, int length) const;
QByteArray blockData(int block) const;
QPoint offsetToPos(int offset);
void asIntegers(int offset, int count, quint64 &beValue, quint64 &leValue);
int m_unmodifiedState;
int m_readOnly;
int m_margin;
......
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