ladybird/Applications/Welcome/main.cpp
2020-02-15 20:46:10 +01:00

262 lines
9.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <AK/Vector.h>
#include <LibCore/File.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/StackWidget.h>
#include <LibGUI/Window.h>
#include <LibGfx/Font.h>
#include <LibGfx/Bitmap.h>
#include <stdio.h>
#include <unistd.h>
#include "BackgroundWidget.h"
#include "TextWidget.h"
#include "UnuncheckableButton.h"
struct ContentPage {
String menu_name;
String title;
String icon = String::empty();
Vector<String> content;
};
Optional<Vector<ContentPage>> parse_welcome_file(const String& path)
{
const auto error = Optional<Vector<ContentPage>>();
auto file = Core::File::construct(path);
if (!file->open(Core::IODevice::ReadOnly))
return error;
Vector<ContentPage> pages;
StringBuilder current_output_line;
bool started = false;
ContentPage current;
while (true) {
auto buffer = file->read_line(4096);
if (buffer.is_null()) {
if (file->error()) {
file->close();
return error;
}
break;
}
auto line = String((char*)buffer.data());
if (line.length() > 1)
line = line.substring(0, line.length() - 1); // remove newline
switch (line[0]) {
case '*':
dbg() << "menu_item line:\t" << line;
if (started)
pages.append(current);
else
started = true;
current = {};
current.menu_name = line.substring(2, line.length() - 2);
break;
case '$':
dbg() << "icon line: \t" << line;
current.icon = line.substring(2, line.length() - 2);
break;
case '>':
dbg() << "title line:\t" << line;
current.title = line.substring(2, line.length() - 2);
break;
case '\n':
dbg() << "newline";
if (!current_output_line.to_string().is_empty())
current.content.append(current_output_line.to_string());
current_output_line.clear();
break;
case '#':
dbg() << "comment line:\t" << line;
break;
default:
dbg() << "content line:\t" << line;
if (current_output_line.length() != 0)
current_output_line.append(' ');
current_output_line.append(line);
break;
}
}
if (started) {
current.content.append(current_output_line.to_string());
pages.append(current);
}
file->close();
return pages;
}
int main(int argc, char** argv)
{
if (pledge("stdio shared_buffer rpath unix cpath fattr", nullptr) < 0) {
perror("pledge");
return 1;
}
GUI::Application app(argc, argv);
if (pledge("stdio shared_buffer rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (unveil("/res", "r") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
Optional<Vector<ContentPage>> _pages = parse_welcome_file("/res/welcome.txt");
if (!_pages.has_value()) {
GUI::MessageBox::show("Could not open Welcome file.", "Welcome", GUI::MessageBox::Type::Error, GUI::MessageBox::InputType::OK, nullptr);
return 1;
}
auto pages = _pages.value();
auto window = GUI::Window::construct();
window->set_title("Welcome");
Gfx::Rect window_rect { 0, 0, 640, 360 };
window_rect.center_within(GUI::Desktop::the().rect());
window->set_resizable(true);
window->set_rect(window_rect);
auto background = BackgroundWidget::construct();
window->set_main_widget(background);
background->set_fill_with_background_color(false);
background->set_layout(make<GUI::VerticalBoxLayout>());
background->layout()->set_margins({ 16, 8, 16, 8 });
background->layout()->set_spacing(8);
background->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
//
// header
//
auto header = GUI::Label::construct(background.ptr());
header->set_font(Gfx::Font::load_from_file("/res/fonts/PebbletonBold11.font"));
header->set_text("Welcome to SerenityOS!");
header->set_text_alignment(Gfx::TextAlignment::CenterLeft);
header->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
header->set_preferred_size(0, 30);
//
// main section
//
auto main_section = GUI::Widget::construct(background.ptr());
main_section->set_layout(make<GUI::HorizontalBoxLayout>());
main_section->layout()->set_margins({ 0, 0, 0, 0 });
main_section->layout()->set_spacing(8);
main_section->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
auto menu = GUI::Widget::construct(main_section.ptr());
menu->set_layout(make<GUI::VerticalBoxLayout>());
menu->layout()->set_margins({ 0, 0, 0, 0 });
menu->layout()->set_spacing(4);
menu->set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fill);
menu->set_preferred_size(100, 0);
auto stack = GUI::StackWidget::construct(main_section);
stack->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
bool first = true;
for (auto& page : pages) {
auto content = GUI::Widget::construct(stack.ptr());
content->set_layout(make<GUI::VerticalBoxLayout>());
content->layout()->set_margins({ 0, 0, 0, 0 });
content->layout()->set_spacing(8);
content->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
auto title_box = GUI::Widget::construct(content.ptr());
title_box->set_layout(make<GUI::HorizontalBoxLayout>());
title_box->layout()->set_spacing(4);
title_box->set_preferred_size(0, 16);
title_box->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
if (!page.icon.is_empty()) {
auto icon = GUI::Label::construct(title_box);
icon->set_icon(Gfx::Bitmap::load_from_file(page.icon));
icon->set_preferred_size(16, 16);
icon->set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fixed);
}
auto content_title = GUI::Label::construct(title_box);
content_title->set_font(Gfx::Font::default_bold_font());
content_title->set_text(page.title);
content_title->set_text_alignment(Gfx::TextAlignment::CenterLeft);
content_title->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
content_title->set_preferred_size(0, 10);
for (auto& paragraph : page.content) {
auto content_text = TextWidget::construct(content);
content_text->set_font(Gfx::Font::default_font());
content_text->set_text(paragraph);
content_text->set_text_alignment(Gfx::TextAlignment::TopLeft);
content_text->set_line_height(12);
content_text->wrap_and_set_height();
}
auto menu_option = UnuncheckableButton::construct(menu);
menu_option->set_font(Gfx::Font::default_font());
menu_option->set_text(page.menu_name);
menu_option->set_text_alignment(Gfx::TextAlignment::CenterLeft);
menu_option->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
menu_option->set_preferred_size(0, 20);
menu_option->set_checkable(true);
menu_option->set_exclusive(true);
if (first)
menu_option->set_checked(true);
menu_option->on_click = [content = content.ptr(), &stack](auto&) {
stack->set_active_widget(content);
content->invalidate_layout();
};
first = false;
}
window->show();
return app.exec();
}