mirror of https://github.com/bsnes-emu/bsnes.git
303 lines
8.4 KiB
C++
303 lines
8.4 KiB
C++
#if defined(Hiro_HexEdit)
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namespace hiro {
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auto pHexEdit::construct() -> void {
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qtWidget = qtHexEdit = new QtHexEdit(*this);
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qtHexEdit->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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qtHexEdit->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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qtHexEdit->setTextInteractionFlags(Qt::TextSelectableByKeyboard | Qt::TextSelectableByMouse);
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qtLayout = new QHBoxLayout;
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qtLayout->setAlignment(Qt::AlignRight);
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qtLayout->setMargin(0);
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qtLayout->setSpacing(0);
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qtHexEdit->setLayout(qtLayout);
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qtScrollBar = new QtHexEditScrollBar(*this);
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qtScrollBar->setSingleStep(1);
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qtLayout->addWidget(qtScrollBar);
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qtScrollBar->connect(qtScrollBar, SIGNAL(actionTriggered(int)), SLOT(onScroll()));
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pWidget::construct();
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setBackgroundColor(state().backgroundColor);
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setForegroundColor(state().foregroundColor);
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_setState();
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}
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auto pHexEdit::destruct() -> void {
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delete qtScrollBar;
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delete qtLayout;
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delete qtHexEdit;
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qtWidget = qtHexEdit = nullptr;
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qtLayout = nullptr;
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qtScrollBar = nullptr;
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}
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auto pHexEdit::setAddress(unsigned address) -> void {
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_setState();
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}
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auto pHexEdit::setBackgroundColor(Color color) -> void {
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static auto defaultColor = qtHexEdit->palette().color(QPalette::Base);
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auto palette = qtHexEdit->palette();
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palette.setColor(QPalette::Base, CreateColor(color, defaultColor));
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qtHexEdit->setPalette(palette);
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qtHexEdit->setAutoFillBackground((bool)color);
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}
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auto pHexEdit::setColumns(unsigned columns) -> void {
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_setState();
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}
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auto pHexEdit::setForegroundColor(Color color) -> void {
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static auto defaultColor = qtHexEdit->palette().color(QPalette::Text);
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auto palette = qtHexEdit->palette();
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palette.setColor(QPalette::Text, color ? CreateColor(color) : defaultColor);
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qtHexEdit->setPalette(palette);
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}
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auto pHexEdit::setLength(unsigned length) -> void {
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_setState();
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}
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auto pHexEdit::setRows(unsigned rows) -> void {
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_setState();
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}
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auto pHexEdit::update() -> void {
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if(!state().onRead) {
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qtHexEdit->setPlainText("");
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return;
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}
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unsigned cursorPosition = qtHexEdit->textCursor().position();
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string output;
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unsigned address = state().address;
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for(unsigned row = 0; row < state().rows; row++) {
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output.append(hex(address, 8L));
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output.append(" ");
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string hexdata;
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string ansidata = " ";
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for(unsigned column = 0; column < state().columns; column++) {
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if(address < state().length) {
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uint8_t data = self().doRead(address++);
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hexdata.append(hex(data, 2L));
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hexdata.append(" ");
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ansidata.append(data >= 0x20 && data <= 0x7e ? (char)data : '.');
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} else {
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hexdata.append(" ");
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ansidata.append(" ");
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}
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}
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output.append(hexdata);
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output.append(ansidata);
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if(address >= state().length) break;
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if(row != state().rows - 1) output.append("\n");
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}
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qtHexEdit->setPlainText(QString::fromUtf8(output));
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QTextCursor cursor = qtHexEdit->textCursor();
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cursor.setPosition(cursorPosition);
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qtHexEdit->setTextCursor(cursor);
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}
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auto pHexEdit::_keyPressEvent(QKeyEvent* event) -> void {
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if(!state().onRead) return;
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//allow Ctrl+C (copy)
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if(event->key() == Qt::Key_C && event->modifiers() == Qt::ControlModifier) {
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qtHexEdit->keyPressEventAcknowledge(event);
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return;
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}
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//disallow other text operations (cut, paste, etc)
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if(event->modifiers() & (Qt::ControlModifier | Qt::AltModifier | Qt::MetaModifier)) return;
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QTextCursor cursor = qtHexEdit->textCursor();
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signed lineWidth = 10 + (state().columns * 3) + 1 + state().columns + 1;
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signed cursorY = cursor.position() / lineWidth;
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signed cursorX = cursor.position() % lineWidth;
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unsigned nibble = 0;
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switch(event->key()) {
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default: return;
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case Qt::Key_Left:
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if(cursorX > 0) {
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cursor.setPosition(cursor.position() - 1);
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qtHexEdit->setTextCursor(cursor);
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}
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return;
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case Qt::Key_Right:
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if(cursorX < lineWidth - 1) {
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cursor.setPosition(cursor.position() + 1);
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qtHexEdit->setTextCursor(cursor);
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}
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return;
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case Qt::Key_Home:
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cursor.setPosition(cursorY * lineWidth + 10);
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qtHexEdit->setTextCursor(cursor);
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return;
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case Qt::Key_End:
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cursor.setPosition(cursorY * lineWidth + 57);
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qtHexEdit->setTextCursor(cursor);
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return;
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case Qt::Key_Up:
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if(cursorY > 0) {
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cursor.setPosition(cursor.position() - lineWidth);
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qtHexEdit->setTextCursor(cursor);
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} else {
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_scrollTo(qtScrollBar->sliderPosition() - 1);
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}
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return;
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case Qt::Key_Down:
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if(cursorY >= _rows() - 1) {
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//cannot scroll down further
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} else if(cursorY < state().rows - 1) {
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cursor.setPosition(cursor.position() + lineWidth);
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qtHexEdit->setTextCursor(cursor);
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} else {
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_scrollTo(qtScrollBar->sliderPosition() + 1);
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}
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return;
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case Qt::Key_PageUp:
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_scrollTo(qtScrollBar->sliderPosition() - state().rows);
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return;
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case Qt::Key_PageDown:
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_scrollTo(qtScrollBar->sliderPosition() + state().rows);
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return;
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case Qt::Key_0: nibble = 0; break;
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case Qt::Key_1: nibble = 1; break;
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case Qt::Key_2: nibble = 2; break;
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case Qt::Key_3: nibble = 3; break;
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case Qt::Key_4: nibble = 4; break;
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case Qt::Key_5: nibble = 5; break;
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case Qt::Key_6: nibble = 6; break;
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case Qt::Key_7: nibble = 7; break;
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case Qt::Key_8: nibble = 8; break;
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case Qt::Key_9: nibble = 9; break;
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case Qt::Key_A: nibble = 10; break;
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case Qt::Key_B: nibble = 11; break;
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case Qt::Key_C: nibble = 12; break;
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case Qt::Key_D: nibble = 13; break;
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case Qt::Key_E: nibble = 14; break;
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case Qt::Key_F: nibble = 15; break;
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}
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if(cursorX >= 10) {
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//not on an offset
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cursorX -= 10;
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if((cursorX % 3) != 2) {
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//not on a space
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bool cursorNibble = (cursorX % 3) == 1; //0 = high, 1 = low
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cursorX /= 3;
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if(cursorX < state().columns) {
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//not in ANSI region
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unsigned address = state().address + (cursorY * state().columns + cursorX);
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if(address >= state().length) return; //do not edit past end of file
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uint8_t data = self().doRead(address);
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//write modified value
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if(cursorNibble == 1) {
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data = (data & 0xf0) | (nibble << 0);
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} else {
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data = (data & 0x0f) | (nibble << 4);
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}
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self().doWrite(address, data);
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//auto-advance cursor to next nibble/byte
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unsigned step = 1;
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if(cursorNibble && cursorX != state().columns - 1) step = 2;
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cursor.setPosition(cursor.position() + step);
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qtHexEdit->setTextCursor(cursor);
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//refresh output to reflect modified data
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update();
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}
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}
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}
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}
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//number of actual rows
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auto pHexEdit::_rows() -> signed {
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return (max(1u, state().length) + state().columns - 1) / state().columns;
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}
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//number of scrollable row positions
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auto pHexEdit::_rowsScrollable() -> signed {
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return max(0u, _rows() - state().rows);
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}
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auto pHexEdit::_scrollTo(signed position) -> void {
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if(position > _rowsScrollable()) position = _rowsScrollable();
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if(position < 0) position = 0;
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qtScrollBar->setSliderPosition(position);
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}
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auto pHexEdit::_setState() -> void {
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auto lock = acquire();
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//add one if last row is not equal to column length (eg only part of the row is present)
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bool indivisible = state().columns == 0 || (state().length % state().columns) != 0;
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qtScrollBar->setRange(0, state().length / state().columns + indivisible - state().rows);
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qtScrollBar->setSliderPosition(state().address / state().columns);
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qtScrollBar->setPageStep(state().rows);
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update();
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}
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auto QtHexEdit::keyPressEvent(QKeyEvent* event) -> void {
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p._keyPressEvent(event);
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}
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auto QtHexEdit::keyPressEventAcknowledge(QKeyEvent* event) -> void {
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QTextEdit::keyPressEvent(event);
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}
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auto QtHexEdit::wheelEvent(QWheelEvent* event) -> void {
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if(event->orientation() == Qt::Vertical) {
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signed offset = event->delta() < 0 ? +1 : -1;
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p._scrollTo(p.qtScrollBar->sliderPosition() + offset);
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event->accept();
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}
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}
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auto QtHexEditScrollBar::event(QEvent* event) -> bool {
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if(event->type() == QEvent::Wheel) {
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auto wheelEvent = (QWheelEvent*)event;
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if(wheelEvent->orientation() == Qt::Vertical) {
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signed offset = wheelEvent->delta() < 0 ? +1 : -1;
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p._scrollTo(sliderPosition() + offset);
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return true;
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}
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}
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return QScrollBar::event(event);
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}
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auto QtHexEditScrollBar::onScroll() -> void {
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if(p.locked()) return;
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unsigned address = sliderPosition();
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p.state().address = address * p.state().columns;
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p.update();
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}
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}
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#endif
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