mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 13:35:07 +00:00
94ca55cefd
As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
255 lines
11 KiB
C++
255 lines
11 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "HexEditorWidget.h"
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#include <AK/Optional.h>
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#include <AK/StringBuilder.h>
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#include <LibCore/CFile.h>
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#include <LibDraw/PNGLoader.h>
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#include <LibGUI/GAboutDialog.h>
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#include <LibGUI/GAction.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GFilePicker.h>
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#include <LibGUI/GFontDatabase.h>
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#include <LibGUI/GInputBox.h>
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#include <LibGUI/GMenuBar.h>
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#include <LibGUI/GMessageBox.h>
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#include <LibGUI/GStatusBar.h>
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#include <LibGUI/GTextBox.h>
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#include <LibGUI/GTextEditor.h>
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#include <LibGUI/GToolBar.h>
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#include <stdio.h>
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HexEditorWidget::HexEditorWidget()
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{
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set_layout(make<GBoxLayout>(Orientation::Vertical));
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layout()->set_spacing(0);
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m_editor = HexEditor::construct(this);
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m_editor->on_status_change = [this](int position, HexEditor::EditMode edit_mode, int selection_start, int selection_end) {
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m_statusbar->set_text(0, String::format("Offset: %8X", position));
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m_statusbar->set_text(1, String::format("Edit Mode: %s", edit_mode == HexEditor::EditMode::Hex ? "Hex" : "Text"));
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m_statusbar->set_text(2, String::format("Selection Start: %d", selection_start));
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m_statusbar->set_text(3, String::format("Selection End: %d", selection_end));
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m_statusbar->set_text(4, String::format("Selected Bytes: %d", (selection_end - selection_start) + 1));
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};
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m_editor->on_change = [this] {
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bool was_dirty = m_document_dirty;
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m_document_dirty = true;
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if (!was_dirty)
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update_title();
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};
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m_statusbar = GStatusBar::construct(5, this);
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m_new_action = GAction::create("New", { Mod_Ctrl, Key_N }, GraphicsBitmap::load_from_file("/res/icons/16x16/new.png"), [this](const GAction&) {
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if (m_document_dirty) {
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auto save_document_first_box = GMessageBox::construct("Save Document First?", "Warning", GMessageBox::Type::Warning, GMessageBox::InputType::OKCancel, window());
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auto save_document_first_result = save_document_first_box->exec();
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if (save_document_first_result != GDialog::ExecResult::ExecOK)
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return;
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m_save_action->activate();
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}
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auto input_box = GInputBox::construct("Enter new file size:", "New file size", this);
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if (input_box->exec() == GInputBox::ExecOK && !input_box->text_value().is_empty()) {
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auto valid = false;
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auto file_size = input_box->text_value().to_int(valid);
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if (valid && file_size > 0) {
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m_document_dirty = false;
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m_editor->set_buffer(ByteBuffer::create_zeroed(file_size));
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set_path(FileSystemPath());
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update_title();
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} else {
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GMessageBox::show("Invalid file size entered.", "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
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}
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}
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});
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m_open_action = GCommonActions::make_open_action([this](auto&) {
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Optional<String> open_path = GFilePicker::get_open_filepath();
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if (!open_path.has_value())
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return;
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open_file(open_path.value());
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});
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m_save_action = GAction::create("Save", { Mod_Ctrl, Key_S }, GraphicsBitmap::load_from_file("/res/icons/16x16/save.png"), [&](const GAction&) {
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if (!m_path.is_empty()) {
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if (!m_editor->write_to_file(m_path)) {
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GMessageBox::show("Unable to save file.\n", "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
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} else {
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m_document_dirty = false;
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update_title();
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}
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return;
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}
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m_save_as_action->activate();
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});
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m_save_as_action = GAction::create("Save as...", { Mod_Ctrl | Mod_Shift, Key_S }, GraphicsBitmap::load_from_file("/res/icons/16x16/save.png"), [this](const GAction&) {
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Optional<String> save_path = GFilePicker::get_save_filepath(m_name.is_null() ? "Untitled" : m_name, m_extension.is_null() ? "bin" : m_extension);
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if (!save_path.has_value())
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return;
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if (!m_editor->write_to_file(save_path.value())) {
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GMessageBox::show("Unable to save file.\n", "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
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return;
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}
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m_document_dirty = false;
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set_path(FileSystemPath(save_path.value()));
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dbg() << "Wrote document to " << save_path.value();
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});
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auto menubar = make<GMenuBar>();
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auto app_menu = GMenu::construct("Hex Editor");
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app_menu->add_action(*m_new_action);
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app_menu->add_action(*m_open_action);
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app_menu->add_action(*m_save_action);
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app_menu->add_action(*m_save_as_action);
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app_menu->add_separator();
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app_menu->add_action(GCommonActions::make_quit_action([this](auto&) {
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if (!request_close())
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return;
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GApplication::the().quit(0);
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}));
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menubar->add_menu(move(app_menu));
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auto bytes_per_row_menu = GMenu::construct("Bytes Per Row");
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for (int i = 8; i <= 32; i += 8) {
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bytes_per_row_menu->add_action(GAction::create(String::number(i), [this, i](auto&) {
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m_editor->set_bytes_per_row(i);
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m_editor->update();
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}));
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}
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m_goto_decimal_offset_action = GAction::create("Go To Offset (Decimal)...", { Mod_Ctrl | Mod_Shift, Key_G }, GraphicsBitmap::load_from_file("/res/icons/16x16/go-forward.png"), [this](const GAction&) {
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auto input_box = GInputBox::construct("Enter Decimal offset:", "Go To", this);
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if (input_box->exec() == GInputBox::ExecOK && !input_box->text_value().is_empty()) {
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auto valid = false;
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auto new_offset = input_box->text_value().to_int(valid);
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if (valid) {
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m_editor->set_position(new_offset);
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}
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}
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});
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m_goto_hex_offset_action = GAction::create("Go To Offset (Hex)...", { Mod_Ctrl, Key_G }, GraphicsBitmap::load_from_file("/res/icons/16x16/go-forward.png"), [this](const GAction&) {
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auto input_box = GInputBox::construct("Enter Hex offset:", "Go To", this);
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if (input_box->exec() == GInputBox::ExecOK && !input_box->text_value().is_empty()) {
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auto new_offset = strtol(input_box->text_value().characters(), nullptr, 16);
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m_editor->set_position(new_offset);
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}
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});
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auto edit_menu = GMenu::construct("Edit");
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edit_menu->add_action(GAction::create("Fill selection...", { Mod_Ctrl, Key_B }, [&](const GAction&) {
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auto input_box = GInputBox::construct("Fill byte (hex):", "Fill Selection", this);
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if (input_box->exec() == GInputBox::ExecOK && !input_box->text_value().is_empty()) {
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auto fill_byte = strtol(input_box->text_value().characters(), nullptr, 16);
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m_editor->fill_selection(fill_byte);
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}
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}));
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edit_menu->add_separator();
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edit_menu->add_action(*m_goto_decimal_offset_action);
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edit_menu->add_action(*m_goto_hex_offset_action);
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edit_menu->add_separator();
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edit_menu->add_action(GAction::create("Copy Hex", { Mod_Ctrl, Key_C }, [&](const GAction&) {
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m_editor->copy_selected_hex_to_clipboard();
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}));
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edit_menu->add_action(GAction::create("Copy Text", { Mod_Ctrl | Mod_Shift, Key_C }, [&](const GAction&) {
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m_editor->copy_selected_text_to_clipboard();
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}));
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edit_menu->add_separator();
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edit_menu->add_action(GAction::create("Copy As C Code", { Mod_Alt | Mod_Shift, Key_C }, [&](const GAction&) {
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m_editor->copy_selected_hex_to_clipboard_as_c_code();
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}));
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menubar->add_menu(move(edit_menu));
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auto view_menu = GMenu::construct("View");
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view_menu->add_submenu(move(bytes_per_row_menu));
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menubar->add_menu(move(view_menu));
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auto help_menu = GMenu::construct("Help");
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help_menu->add_action(GAction::create("About", [&](const GAction&) {
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GAboutDialog::show("Hex Editor", load_png("/res/icons/32x32/app-hexeditor.png"), window());
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}));
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menubar->add_menu(move(help_menu));
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GApplication::the().set_menubar(move(menubar));
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m_editor->set_focus(true);
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}
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HexEditorWidget::~HexEditorWidget()
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{
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}
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void HexEditorWidget::set_path(const FileSystemPath& file)
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{
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m_path = file.string();
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m_name = file.title();
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m_extension = file.extension();
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update_title();
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}
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void HexEditorWidget::update_title()
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{
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StringBuilder builder;
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builder.append("Hex Editor: ");
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builder.append(m_path);
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if (m_document_dirty)
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builder.append(" (*)");
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window()->set_title(builder.to_string());
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}
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void HexEditorWidget::open_file(const String& path)
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{
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auto file = CFile::construct(path);
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if (!file->open(CIODevice::ReadOnly)) {
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GMessageBox::show(String::format("Opening \"%s\" failed: %s", path.characters(), strerror(errno)), "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
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return;
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}
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m_document_dirty = false;
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m_editor->set_buffer(file->read_all()); // FIXME: On really huge files, this is never going to work. Should really create a framework to fetch data from the file on-demand.
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set_path(FileSystemPath(path));
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}
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bool HexEditorWidget::request_close()
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{
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if (!m_document_dirty)
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return true;
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auto result = GMessageBox::show("The file has been modified. Quit without saving?", "Quit without saving?", GMessageBox::Type::Warning, GMessageBox::InputType::OKCancel, window());
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return result == GMessageBox::ExecOK;
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}
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