52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#include "qfilebuffer.h"
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#include "QHexEdit2/chunks.h"
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/*
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* this file is implemented by wingsummer,
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* 使用 QHexEdit2 的代码来实现轻松访问上 GB 的文件，
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* 该类作者并未实现
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*/
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QFileBuffer::QFileBuffer(QObject *parent) : QHexBuffer(parent) {
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_chunks = new Chunks(parent);
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}
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QFileBuffer::~QFileBuffer() {}
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uchar QFileBuffer::at(qsizetype idx) {
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auto data = _chunks->data(idx, 1);
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return uchar(data[0]);
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}
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qsizetype QFileBuffer::length() const { return _chunks->size(); }
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void QFileBuffer::insert(qsizetype offset, const QByteArray &data) {
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for (int i = 0; i < data.length(); i++) {
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_chunks->insert(offset + i, data.at(i));
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}
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}
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void QFileBuffer::remove(qsizetype offset, qsizetype length) {
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for (uint i = 0; i < uint(length); i++) {
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_chunks->removeAt(offset + i);
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}
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}
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QByteArray QFileBuffer::read(qsizetype offset, qsizetype length) {
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return _chunks->data(offset, length);
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}
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bool QFileBuffer::read(QIODevice *device) {
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return _chunks->setIODevice(device);
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}
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void QFileBuffer::write(QIODevice *device) { _chunks->write(device); }
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qsizetype QFileBuffer::indexOf(const QByteArray &ba, qsizetype from) {
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return _chunks->indexOf(ba, from);
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}
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qsizetype QFileBuffer::lastIndexOf(const QByteArray &ba, qsizetype from) {
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return _chunks->lastIndexOf(ba, from);
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}
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