mirror of
https://github.com/SerenityOS/serenity
synced 2024-10-15 12:23:15 +00:00
HexEditor: Wrap selection and behavior in a struct
This commit is contained in:
parent
96e8debf0b
commit
84dd0ce1ae
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@ -50,8 +50,7 @@ ErrorOr<void> HexEditor::open_new_file(size_t size)
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set_content_length(m_document->size());
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m_position = 0;
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m_cursor_at_low_nibble = false;
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m_selection_start = 0;
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m_selection_end = 0;
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m_selection.clear();
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scroll_position_into_view(m_position);
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update();
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update_status();
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@ -65,8 +64,7 @@ void HexEditor::open_file(NonnullOwnPtr<Core::File> file)
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set_content_length(m_document->size());
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m_position = 0;
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m_cursor_at_low_nibble = false;
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m_selection_start = 0;
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m_selection_end = 0;
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m_selection.clear();
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scroll_position_into_view(m_position);
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update();
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update_status();
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@ -80,22 +78,22 @@ ErrorOr<void> HexEditor::fill_selection(u8 fill_byte)
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ByteBuffer old_values;
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ByteBuffer new_values;
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size_t length = m_selection_end - m_selection_start;
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size_t length = m_selection.size();
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new_values.resize(length);
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old_values.resize(length);
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for (size_t i = 0; i < length; i++) {
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size_t position = m_selection_start + i;
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size_t position = m_selection.start + i;
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old_values[i] = m_document->get(position).value;
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new_values[i] = fill_byte;
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m_document->set(position, fill_byte);
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}
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auto result = did_complete_action(m_selection_start, move(old_values), move(new_values));
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auto result = did_complete_action(m_selection.start, move(old_values), move(new_values));
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if (result.is_error()) {
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for (size_t i = 0; i < length; i++) {
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size_t position = m_selection_start + i;
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size_t position = m_selection.start + i;
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m_document->set(position, old_values[i]);
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}
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return result;
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@ -117,6 +115,7 @@ void HexEditor::set_position(size_t position)
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scroll_position_into_view(position);
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update_status();
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}
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void HexEditor::set_selection(size_t position, size_t length)
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{
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if (position > m_document->size() || position + length > m_document->size())
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@ -124,8 +123,8 @@ void HexEditor::set_selection(size_t position, size_t length)
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m_position = position;
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m_cursor_at_low_nibble = false;
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m_selection_start = position;
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m_selection_end = position + length;
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m_selection.start = position;
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m_selection.end = position + length;
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scroll_position_into_view(position);
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update_status();
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}
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@ -156,20 +155,13 @@ ErrorOr<void> HexEditor::save()
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return {};
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}
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size_t HexEditor::selection_size() const
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{
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if (!has_selection())
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return 0;
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return m_selection_end - m_selection_start;
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}
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bool HexEditor::copy_selected_hex_to_clipboard()
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{
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if (!has_selection())
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return false;
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StringBuilder output_string_builder;
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for (size_t i = m_selection_start; i < m_selection_end; i++)
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for (size_t i = m_selection.start; i < m_selection.end; i++)
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output_string_builder.appendff("{:02X} ", m_document->get(i).value);
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GUI::Clipboard::the().set_plain_text(output_string_builder.to_byte_string());
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@ -182,7 +174,7 @@ bool HexEditor::copy_selected_text_to_clipboard()
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return false;
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StringBuilder output_string_builder;
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for (size_t i = m_selection_start; i < m_selection_end; i++)
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for (size_t i = m_selection.start; i < m_selection.end; i++)
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output_string_builder.append(isprint(m_document->get(i).value) ? m_document->get(i).value : '.');
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GUI::Clipboard::the().set_plain_text(output_string_builder.to_byte_string());
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@ -195,11 +187,11 @@ bool HexEditor::copy_selected_hex_to_clipboard_as_c_code()
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return false;
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StringBuilder output_string_builder;
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output_string_builder.appendff("unsigned char raw_data[{}] = {{\n", m_selection_end - m_selection_start);
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output_string_builder.appendff("unsigned char raw_data[{}] = {{\n", m_selection.end - m_selection.start);
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output_string_builder.append(" "sv);
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for (size_t i = m_selection_start, j = 1; i < m_selection_end; i++, j++) {
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for (size_t i = m_selection.start, j = 1; i < m_selection.end; i++, j++) {
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output_string_builder.appendff("{:#02X}", m_document->get(i).value);
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if (i >= m_selection_end - 1)
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if (i >= m_selection.end - 1)
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continue;
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if ((j % 12) == 0)
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output_string_builder.append(",\n "sv);
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@ -241,11 +233,11 @@ Optional<u8> HexEditor::get_byte(size_t position)
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ByteBuffer HexEditor::get_selected_bytes()
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{
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auto num_selected_bytes = m_selection_end - m_selection_start;
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auto num_selected_bytes = m_selection.size();
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ByteBuffer data;
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data.ensure_capacity(num_selected_bytes);
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for (size_t i = m_selection_start; i < m_selection_end; i++)
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for (size_t i = m_selection.start; i < m_selection.end; i++)
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data.append(m_document->get(i).value);
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return data;
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@ -287,8 +279,8 @@ void HexEditor::mousedown_event(GUI::MouseEvent& event)
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m_cursor_at_low_nibble = false;
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m_position = offset;
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m_in_drag_select = true;
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m_selection_start = offset;
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m_selection_end = offset;
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m_selection.start = offset;
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m_selection.end = offset;
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update();
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update_status();
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}
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@ -309,8 +301,8 @@ void HexEditor::mousedown_event(GUI::MouseEvent& event)
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m_position = offset;
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m_cursor_at_low_nibble = false;
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m_in_drag_select = true;
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m_selection_start = offset;
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m_selection_end = offset;
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m_selection.start = offset;
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m_selection.end = offset;
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m_edit_mode = EditMode::Text;
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update();
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update_status();
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@ -353,8 +345,8 @@ void HexEditor::mousemove_event(GUI::MouseEvent& event)
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if (offset > m_document->size())
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return;
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m_selection_end = offset;
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m_position = (m_selection_end <= m_selection_start) ? offset : offset - 1;
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m_selection.end = offset;
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m_position = (m_selection.end <= m_selection.start) ? offset : offset - 1;
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scroll_position_into_view(offset);
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}
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@ -368,8 +360,8 @@ void HexEditor::mousemove_event(GUI::MouseEvent& event)
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if (offset > m_document->size())
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return;
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m_selection_end = offset;
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m_position = (m_selection_end <= m_selection_start) ? offset : offset - 1;
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m_selection.end = offset;
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m_position = (m_selection.end <= m_selection.start) ? offset : offset - 1;
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scroll_position_into_view(offset);
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}
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update_status();
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@ -382,11 +374,9 @@ void HexEditor::mouseup_event(GUI::MouseEvent& event)
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{
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if (event.button() == GUI::MouseButton::Primary) {
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if (m_in_drag_select) {
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if (m_selection_end < m_selection_start) {
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if (m_selection.end < m_selection.start) {
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// lets flip these around
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auto start = m_selection_end;
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m_selection_end = m_selection_start;
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m_selection_start = start;
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swap(m_selection.start, m_selection.end);
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}
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m_in_drag_select = false;
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}
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@ -415,14 +405,15 @@ void HexEditor::keydown_event(GUI::KeyEvent& event)
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auto move_and_update_cursor_by = [&](i64 cursor_location_change) {
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size_t new_position = m_position + cursor_location_change;
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if (event.modifiers() & Mod_Shift) {
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size_t selection_pivot = m_position == m_selection_end ? m_selection_start : m_selection_end;
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size_t selection_pivot = m_position == m_selection.end ? m_selection.start : m_selection.end;
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m_position = new_position;
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m_selection_start = selection_pivot;
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m_selection_end = m_position;
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if (m_selection_start > m_selection_end)
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swap(m_selection_start, m_selection_end);
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} else
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m_selection_start = m_selection_end = m_position = new_position;
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m_selection.start = selection_pivot;
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m_selection.end = m_position;
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if (m_selection.start > m_selection.end)
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swap(m_selection.start, m_selection.end);
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} else {
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m_selection.start = m_selection.end = m_position = new_position;
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}
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m_cursor_at_low_nibble = false;
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scroll_position_into_view(m_position);
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update();
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@ -565,7 +556,7 @@ ErrorOr<void> HexEditor::text_mode_keydown_event(GUI::KeyEvent& event)
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void HexEditor::update_status()
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{
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if (on_status_change)
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on_status_change(m_position, m_edit_mode, m_selection_start, m_selection_end);
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on_status_change(m_position, m_edit_mode, m_selection);
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}
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void HexEditor::did_change()
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@ -659,8 +650,7 @@ void HexEditor::paint_event(GUI::PaintEvent& event)
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auto high_nibble = line.substring_from_byte_offset(0, 1).release_value_but_fixme_should_propagate_errors();
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auto low_nibble = line.substring_from_byte_offset(1).release_value_but_fixme_should_propagate_errors();
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bool const selected = min(m_selection_start, m_selection_end) <= byte_position
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&& byte_position < max(m_selection_start, m_selection_end);
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bool const selected = m_selection.contains(byte_position);
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// Styling priorities are as follows, with smaller numbers beating larger ones:
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// 1. Modified bytes
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@ -754,8 +744,8 @@ void HexEditor::select_all()
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void HexEditor::highlight(size_t start, size_t end)
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{
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m_selection_start = start;
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m_selection_end = end;
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m_selection.start = start;
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m_selection.end = end;
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set_position(start);
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}
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@ -11,6 +11,7 @@
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#include "HexDocument.h"
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#include "SearchResultsModel.h"
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#include "Selection.h"
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#include <AK/ByteBuffer.h>
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#include <AK/Function.h>
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#include <AK/HashMap.h>
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@ -47,9 +48,9 @@ public:
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GUI::UndoStack& undo_stack();
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void select_all();
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bool has_selection() const { return m_selection_start < m_selection_end && m_document->size() > 0; }
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size_t selection_size() const;
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size_t selection_start_offset() const { return m_selection_start; }
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Selection const& selection() const { return m_selection; }
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bool has_selection() const { return !m_selection.is_empty() && m_document->size() > 0; }
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size_t selection_start_offset() const { return m_selection.start; }
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bool copy_selected_text_to_clipboard();
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bool copy_selected_hex_to_clipboard();
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bool copy_selected_hex_to_clipboard_as_c_code();
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@ -64,7 +65,7 @@ public:
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Optional<size_t> find_and_highlight(ByteBuffer& needle, size_t start = 0);
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Vector<Match> find_all(ByteBuffer& needle, size_t start = 0);
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Vector<Match> find_all_strings(size_t min_length = 4);
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Function<void(size_t, EditMode, size_t, size_t)> on_status_change; // position, edit mode, selection start, selection end
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Function<void(size_t position, EditMode, Selection)> on_status_change;
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Function<void(bool is_document_dirty)> on_change;
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protected:
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@ -81,8 +82,7 @@ private:
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size_t m_content_length { 0 };
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size_t m_bytes_per_row { 16 };
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bool m_in_drag_select { false };
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size_t m_selection_start { 0 };
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size_t m_selection_end { 0 };
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Selection m_selection;
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size_t m_position { 0 };
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bool m_cursor_at_low_nibble { false };
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EditMode m_edit_mode { Hex };
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@ -64,12 +64,12 @@ ErrorOr<void> HexEditorWidget::setup()
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m_editor->update();
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};
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m_editor->on_status_change = [this](int position, HexEditor::HexEditor::EditMode edit_mode, int selection_start, int selection_end) {
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m_editor->on_status_change = [this](int position, HexEditor::HexEditor::EditMode edit_mode, auto selection) {
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m_statusbar->set_text(0, String::formatted("Offset: {:#08X}", position).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(1, String::formatted("Edit Mode: {}", edit_mode == HexEditor::HexEditor::EditMode::Hex ? "Hex" : "Text").release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(2, String::formatted("Selection Start: {}", selection_start).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(3, String::formatted("Selection End: {}", selection_end).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(4, String::formatted("Selected Bytes: {}", m_editor->selection_size()).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(2, String::formatted("Selection Start: {}", selection.start).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(3, String::formatted("Selection End: {}", selection.end).release_value_but_fixme_should_propagate_errors());
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m_statusbar->set_text(4, String::formatted("Selected Bytes: {}", selection.size()).release_value_but_fixme_should_propagate_errors());
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bool has_selection = m_editor->has_selection();
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m_copy_hex_action->set_enabled(has_selection);
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@ -78,7 +78,7 @@ ErrorOr<void> HexEditorWidget::setup()
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m_fill_selection_action->set_enabled(has_selection);
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if (m_value_inspector_container->is_visible() && !m_selecting_from_inspector) {
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update_inspector_values(selection_start);
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update_inspector_values(selection.start);
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}
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m_selecting_from_inspector = false;
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};
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23
Userland/Applications/HexEditor/Selection.h
Normal file
23
Userland/Applications/HexEditor/Selection.h
Normal file
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@ -0,0 +1,23 @@
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/*
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* Copyright (c) 2024, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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struct Selection {
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size_t start { 0 };
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size_t end { 0 };
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void clear()
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{
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start = 0;
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end = 0;
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}
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bool is_empty() const { return start == end; }
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size_t size() const { return (start < end) ? (end - start) : (start - end); }
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bool contains(size_t position) const { return (min(start, end) <= position) && (position < max(start, end)); }
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};
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