ladybird/Userland/Applications/ImageViewer/main.cpp
Max Wipfli 229414b002 Applications: Use titlecase and distinct underlined characters in menus
This changes (context) menus across the system to conform to titlecase
capitalization and to not underline the same character twice (for
accessing actions with Alt).
2021-05-21 18:41:28 +01:00

322 lines
11 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ViewWidget.h"
#include <AK/URL.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/MimeData.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Toolbar.h>
#include <LibGUI/ToolbarContainer.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Palette.h>
#include <LibGfx/Rect.h>
#include <serenity.h>
#include <stdio.h>
#include <string.h>
using namespace ImageViewer;
int main(int argc, char** argv)
{
if (pledge("stdio recvfd sendfd rpath wpath cpath unix thread", nullptr) < 0) {
perror("pledge");
return 1;
}
auto app = GUI::Application::construct(argc, argv);
if (!Desktop::Launcher::add_allowed_handler_with_any_url("/bin/ImageViewer")) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/ImageViewer.md") })) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
if (!Desktop::Launcher::seal_allowlist()) {
warnln("Failed to seal allowed launch URLs");
return 1;
}
auto app_icon = GUI::Icon::default_icon("filetype-image");
const char* path = nullptr;
Core::ArgsParser args_parser;
args_parser.add_positional_argument(path, "The image file to be displayed.", "file", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
auto window = GUI::Window::construct();
window->set_double_buffering_enabled(true);
window->resize(300, 200);
window->set_icon(app_icon.bitmap_for_size(16));
window->set_title("Image Viewer");
auto& root_widget = window->set_main_widget<GUI::Widget>();
root_widget.set_fill_with_background_color(true);
root_widget.set_layout<GUI::VerticalBoxLayout>();
root_widget.layout()->set_spacing(2);
auto& toolbar_container = root_widget.add<GUI::ToolbarContainer>();
auto& main_toolbar = toolbar_container.add<GUI::Toolbar>();
auto& widget = root_widget.add<ViewWidget>();
widget.on_scale_change = [&](int scale, Gfx::IntRect rect) {
if (!widget.bitmap()) {
window->set_title("Image Viewer");
return;
}
window->set_title(String::formatted("{} {} {}% - Image Viewer", widget.path(), widget.bitmap()->size().to_string(), scale));
if (window->is_fullscreen())
return;
if (window->is_maximized())
return;
auto w = max(window->width(), rect.width() + 4);
auto h = max(window->height(), rect.height() + widget.toolbar_height() + 6);
window->resize(w, h);
};
widget.on_drop = [&](auto& event) {
window->move_to_front();
if (!event.mime_data().has_urls())
return;
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
widget.load_from_file(urls.first().path());
for (size_t i = 1; i < urls.size(); ++i) {
Desktop::Launcher::open(URL::create_with_file_protocol(urls[i].path().characters()), "/bin/ImageViewer");
}
};
widget.on_doubleclick = [&] {
window->set_fullscreen(!window->is_fullscreen());
toolbar_container.set_visible(!window->is_fullscreen());
};
// Actions
auto open_action = GUI::CommonActions::make_open_action(
[&](auto&) {
auto path = GUI::FilePicker::get_open_filepath(window, "Open Image");
if (path.has_value()) {
widget.load_from_file(path.value());
}
});
auto delete_action = GUI::CommonActions::make_delete_action(
[&](auto&) {
auto path = widget.path();
if (path.is_empty())
return;
auto msgbox_result = GUI::MessageBox::show(window,
String::formatted("Really delete {}?", path),
"Confirm deletion",
GUI::MessageBox::Type::Warning,
GUI::MessageBox::InputType::OKCancel);
if (msgbox_result == GUI::MessageBox::ExecCancel)
return;
if (unlink(widget.path().characters()) < 0) {
int saved_errno = errno;
GUI::MessageBox::show(window,
String::formatted("unlink({}) failed: {}", path, strerror(saved_errno)),
"Delete failed",
GUI::MessageBox::Type::Error);
return;
}
widget.clear();
});
auto quit_action = GUI::CommonActions::make_quit_action(
[&](auto&) {
app->quit();
});
auto rotate_left_action = GUI::Action::create("Rotate &Left", { Mod_None, Key_L },
[&](auto&) {
widget.rotate(Gfx::RotationDirection::CounterClockwise);
});
auto rotate_right_action = GUI::Action::create("Rotate &Right", { Mod_None, Key_R },
[&](auto&) {
widget.rotate(Gfx::RotationDirection::Clockwise);
});
auto vertical_flip_action = GUI::Action::create("Flip &Vertically", { Mod_None, Key_V },
[&](auto&) {
widget.flip(Gfx::Orientation::Vertical);
});
auto horizontal_flip_action = GUI::Action::create("Flip &Horizontally", { Mod_None, Key_H },
[&](auto&) {
widget.flip(Gfx::Orientation::Horizontal);
});
auto desktop_wallpaper_action = GUI::Action::create("Set as Desktop &Wallpaper",
[&](auto&) {
GUI::Desktop::the().set_wallpaper(widget.path());
});
auto go_first_action = GUI::Action::create("&Go to First", { Mod_None, Key_Home }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-first.png"),
[&](auto&) {
widget.navigate(ViewWidget::Directions::First);
});
auto go_back_action = GUI::Action::create("Go &Back", { Mod_None, Key_Left }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png"),
[&](auto&) {
widget.navigate(ViewWidget::Directions::Back);
});
auto go_forward_action = GUI::Action::create("Go &Forward", { Mod_None, Key_Right }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"),
[&](auto&) {
widget.navigate(ViewWidget::Directions::Forward);
});
auto go_last_action = GUI::Action::create("Go to &Last", { Mod_None, Key_End }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"),
[&](auto&) {
widget.navigate(ViewWidget::Directions::Last);
});
auto full_screen_action = GUI::CommonActions::make_fullscreen_action(
[&](auto&) {
widget.on_doubleclick();
});
auto zoom_in_action = GUI::CommonActions::make_zoom_in_action(
[&](auto&) {
widget.set_scale(widget.scale() + 10);
},
window);
auto reset_zoom_action = GUI::CommonActions::make_reset_zoom_action(
[&](auto&) {
widget.set_scale(100);
},
window);
auto zoom_out_action = GUI::CommonActions::make_zoom_out_action(
[&](auto&) {
widget.set_scale(widget.scale() - 10);
},
window);
auto hide_show_toolbar_action = GUI::Action::create("Hide/Show &Toolbar", { Mod_Ctrl, Key_T },
[&](auto&) {
toolbar_container.set_visible(!toolbar_container.is_visible());
});
auto copy_action = GUI::CommonActions::make_copy_action([&](auto&) {
if (widget.bitmap())
GUI::Clipboard::the().set_bitmap(*widget.bitmap());
});
widget.on_image_change = [&](const Gfx::Bitmap* bitmap) {
bool should_enable_image_actions = (bitmap != nullptr);
delete_action->set_enabled(should_enable_image_actions);
rotate_left_action->set_enabled(should_enable_image_actions);
rotate_right_action->set_enabled(should_enable_image_actions);
vertical_flip_action->set_enabled(should_enable_image_actions);
horizontal_flip_action->set_enabled(should_enable_image_actions);
desktop_wallpaper_action->set_enabled(should_enable_image_actions);
go_first_action->set_enabled(should_enable_image_actions);
go_back_action->set_enabled(should_enable_image_actions);
go_forward_action->set_enabled(should_enable_image_actions);
go_last_action->set_enabled(should_enable_image_actions);
zoom_in_action->set_enabled(should_enable_image_actions);
reset_zoom_action->set_enabled(should_enable_image_actions);
zoom_out_action->set_enabled(should_enable_image_actions);
if (!should_enable_image_actions) {
window->set_title("Image Viewer");
}
};
main_toolbar.add_action(open_action);
main_toolbar.add_action(delete_action);
main_toolbar.add_separator();
main_toolbar.add_action(go_first_action);
main_toolbar.add_action(go_back_action);
main_toolbar.add_action(go_forward_action);
main_toolbar.add_action(go_last_action);
main_toolbar.add_separator();
main_toolbar.add_action(zoom_in_action);
main_toolbar.add_action(reset_zoom_action);
main_toolbar.add_action(zoom_out_action);
auto menubar = GUI::Menubar::construct();
auto& file_menu = menubar->add_menu("&File");
file_menu.add_action(open_action);
file_menu.add_action(delete_action);
file_menu.add_separator();
file_menu.add_action(quit_action);
auto& image_menu = menubar->add_menu("&Image");
image_menu.add_action(rotate_left_action);
image_menu.add_action(rotate_right_action);
image_menu.add_action(vertical_flip_action);
image_menu.add_action(horizontal_flip_action);
image_menu.add_separator();
image_menu.add_action(desktop_wallpaper_action);
auto& navigate_menu = menubar->add_menu("&Navigate");
navigate_menu.add_action(go_first_action);
navigate_menu.add_action(go_back_action);
navigate_menu.add_action(go_forward_action);
navigate_menu.add_action(go_last_action);
auto& view_menu = menubar->add_menu("&View");
view_menu.add_action(full_screen_action);
view_menu.add_separator();
view_menu.add_action(zoom_in_action);
view_menu.add_action(reset_zoom_action);
view_menu.add_action(zoom_out_action);
view_menu.add_separator();
view_menu.add_action(hide_show_toolbar_action);
auto& help_menu = menubar->add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_help_action([](auto&) {
Desktop::Launcher::open(URL::create_with_file_protocol("/usr/share/man/man1/ImageViewer.md"), "/bin/Help");
}));
help_menu.add_action(GUI::CommonActions::make_about_action("Image Viewer", app_icon, window));
window->set_menubar(move(menubar));
if (path != nullptr) {
widget.load_from_file(path);
} else {
widget.clear();
}
window->show();
return app->exec();
}