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/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "GoToOffsetDialog.h"
#include <AK/String.h>
#include <Applications/HexEditor/GoToOffsetDialogGML.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/ComboBox.h>
#include <LibGUI/ItemListModel.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Statusbar.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/Widget.h>
int GoToOffsetDialog::show(GUI::Window* parent_window, int& history_offset, int& out_offset, int selection_offset, int buffer_size)
{
auto dialog = GoToOffsetDialog::construct();
dialog->m_selection_offset = selection_offset;
dialog->m_buffer_size = buffer_size;
if (parent_window)
dialog->set_icon(parent_window->icon());
if (history_offset)
dialog->m_text_editor->set_text(String::formatted("{}", history_offset));
auto result = dialog->exec();
if (result != GUI::Dialog::ExecOK)
return result;
auto input_offset = dialog->process_input();
history_offset = move(input_offset);
auto new_offset = dialog->calculate_new_offset(input_offset);
dbgln("Go to offset: value={}", new_offset);
out_offset = move(new_offset);
return GUI::Dialog::ExecOK;
}
int GoToOffsetDialog::process_input()
{
auto input_offset = m_text_editor->text().trim_whitespace();
int offset;
auto type = m_offset_type_box->text().trim_whitespace();
if (type == "Decimal") {
offset = String::formatted("{}", input_offset).to_int().value_or(0);
} else if (type == "Hexadecimal") {
offset = strtol(String::formatted("{}", input_offset).characters(), nullptr, 16);
} else {
VERIFY_NOT_REACHED();
}
return offset;
}
int GoToOffsetDialog::calculate_new_offset(int input_offset)
{
int new_offset;
auto from = m_offset_from_box->text().trim_whitespace();
if (from == "Start") {
new_offset = input_offset;
} else if (from == "End") {
new_offset = m_buffer_size - input_offset;
} else if (from == "Here") {
new_offset = input_offset + m_selection_offset;
} else {
VERIFY_NOT_REACHED();
}
if (new_offset > m_buffer_size)
new_offset = m_buffer_size;
if (new_offset < 0)
new_offset = 0;
return new_offset;
}
void GoToOffsetDialog::update_statusbar()
{
auto new_offset = calculate_new_offset(process_input());
m_statusbar->set_text(0, String::formatted("HEX: {:#08X}", new_offset));
m_statusbar->set_text(1, String::formatted("DEC: {}", new_offset));
}
GoToOffsetDialog::GoToOffsetDialog()
: Dialog(nullptr)
{
resize(300, 80);
center_on_screen();
set_resizable(false);
set_title("Go to Offset");
auto& main_widget = set_main_widget<GUI::Widget>();
if (!main_widget.load_from_gml(go_to_offset_dialog_gml))
VERIFY_NOT_REACHED();
m_text_editor = *main_widget.find_descendant_of_type_named<GUI::TextBox>("text_editor");
m_go_button = *main_widget.find_descendant_of_type_named<GUI::Button>("go_button");
m_offset_type_box = *main_widget.find_descendant_of_type_named<GUI::ComboBox>("offset_type");
m_offset_from_box = *main_widget.find_descendant_of_type_named<GUI::ComboBox>("offset_from");
m_statusbar = *main_widget.find_descendant_of_type_named<GUI::Statusbar>("statusbar");
m_offset_type.append("Decimal");
m_offset_type.append("Hexadecimal");
m_offset_type_box->set_model(GUI::ItemListModel<String>::create(m_offset_type));
m_offset_type_box->set_selected_index(0);
m_offset_type_box->set_only_allow_values_from_model(true);
m_offset_from.append("Start");
m_offset_from.append("Here");
m_offset_from.append("End");
m_offset_from_box->set_model(GUI::ItemListModel<String>::create(m_offset_from));
m_offset_from_box->set_selected_index(0);
m_offset_from_box->set_only_allow_values_from_model(true);
m_text_editor->on_return_pressed = [this] {
m_go_button->click();
};
m_go_button->on_click = [this](auto) {
done(ExecResult::ExecOK);
};
m_text_editor->on_change = [this]() {
auto text = m_text_editor->text();
if (text.starts_with("0x")) {
text.replace("0x", "");
m_offset_type_box->set_selected_index(1);
m_text_editor->set_text(text);
}
update_statusbar();
};
m_offset_type_box->on_change = [this](auto&, auto&) {
update_statusbar();
};
m_offset_from_box->on_change = [this](auto&, auto&) {
update_statusbar();
};
update_statusbar();
}
GoToOffsetDialog::~GoToOffsetDialog()
{
}
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