LadybirdBrowser/ladybird
1
1
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-12-29 06:02:07 +03:00
Code Issues Packages Projects Releases Wiki Activity
b983dc8807
ladybird/Userland/Applications/ImageViewer/main.cpp
Tim Ledbetter b983dc8807 ImageViewer: Make arrow key shortcuts work 
The user can now navigate to the previous and next image using the
left and right arrow keys respectively. These shortcuts were
previously not working.
2023-02-16 12:26:41 +00:00

347 lines
14 KiB
C++
Raw Blame History

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Mohsan Ali <mohsan0073@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "MainWidget.h"
#include "ViewWidget.h"
#include <AK/URL.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.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 <LibMain/Main.h>
#include <serenity.h>
#include <string.h>
using namespace ImageViewer;
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio recvfd sendfd rpath wpath cpath unix thread"));
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Desktop::Launcher::add_allowed_handler_with_any_url("/bin/ImageViewer"));
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_scheme("/usr/share/man/man1/ImageViewer.md") }));
TRY(Desktop::Launcher::seal_allowlist());
auto app_icon = GUI::Icon::default_icon("filetype-image"sv);
char const* 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(arguments);
auto window = TRY(GUI::Window::try_create());
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 = TRY(window->set_main_widget<MainWidget>());
auto toolbar_container = TRY(root_widget->try_add<GUI::ToolbarContainer>());
auto main_toolbar = TRY(toolbar_container->try_add<GUI::Toolbar>());
auto widget = TRY(root_widget->try_add<ViewWidget>());
if (path) {
widget->set_path(path);
}
widget->on_scale_change = [&](float scale) {
if (!widget->bitmap()) {
window->set_title("Image Viewer");
return;
}
window->set_title(DeprecatedString::formatted("{} {} {}% - Image Viewer", widget->path(), widget->bitmap()->size().to_deprecated_string(), (int)(scale * 100)));
if (!widget->scaled_for_first_image()) {
widget->set_scaled_for_first_image(true);
widget->resize_window();
}
};
widget->on_drop = [&](auto& event) {
if (!event.mime_data().has_urls())
return;
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
window->move_to_front();
auto path = urls.first().path();
widget->set_path(path);
widget->load_from_file(path);
for (size_t i = 1; i < urls.size(); ++i) {
Desktop::Launcher::open(URL::create_with_file_scheme(urls[i].path().characters()), "/bin/ImageViewer");
}
};
widget->on_doubleclick = [&] {
window->set_fullscreen(!window->is_fullscreen());
toolbar_container->set_visible(!window->is_fullscreen());
widget->set_frame_thickness(window->is_fullscreen() ? 0 : 2);
};
// 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->set_path(path.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,
DeprecatedString::formatted("Are you sure you want to delete {}?", path),
"Confirm deletion"sv,
GUI::MessageBox::Type::Warning,
GUI::MessageBox::InputType::OKCancel);
if (msgbox_result == GUI::MessageBox::ExecResult::Cancel)
return;
auto unlinked_or_error = Core::System::unlink(widget->path());
if (unlinked_or_error.is_error()) {
GUI::MessageBox::show(window,
DeprecatedString::formatted("unlink({}) failed: {}", path, unlinked_or_error.error()),
"Delete failed"sv,
GUI::MessageBox::Type::Error);
return;
}
widget->clear();
});
auto quit_action = GUI::CommonActions::make_quit_action(
[&](auto&) {
app->quit();
});
auto rotate_counterclockwise_action = GUI::CommonActions::make_rotate_counterclockwise_action([&](auto&) {
widget->rotate(Gfx::RotationDirection::CounterClockwise);
});
auto rotate_clockwise_action = GUI::CommonActions::make_rotate_clockwise_action([&](auto&) {
widget->rotate(Gfx::RotationDirection::Clockwise);
});
auto vertical_flip_action = GUI::Action::create("Flip &Vertically", { Mod_None, Key_V }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/edit-flip-vertical.png"sv)),
[&](auto&) {
widget->flip(Gfx::Orientation::Vertical);
});
auto horizontal_flip_action = GUI::Action::create("Flip &Horizontally", { Mod_None, Key_H }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/edit-flip-horizontal.png"sv)),
[&](auto&) {
widget->flip(Gfx::Orientation::Horizontal);
});
auto desktop_wallpaper_action = GUI::Action::create("Set as Desktop &Wallpaper", TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-display-settings.png"sv)),
[&](auto&) {
if (!GUI::Desktop::the().set_wallpaper(widget->bitmap(), widget->path())) {
GUI::MessageBox::show(window,
DeprecatedString::formatted("set_wallpaper({}) failed", widget->path()),
"Could not set wallpaper"sv,
GUI::MessageBox::Type::Error);
}
});
auto go_first_action = GUI::Action::create("&Go to First", { Mod_None, Key_Home }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-first.png"sv)),
[&](auto&) {
widget->navigate(ViewWidget::Directions::First);
});
auto go_back_action = GUI::Action::create("Go &Back", { Mod_None, Key_Left }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png"sv)),
[&](auto&) {
widget->navigate(ViewWidget::Directions::Back);
});
auto go_forward_action = GUI::Action::create("Go &Forward", { Mod_None, Key_Right }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"sv)),
[&](auto&) {
widget->navigate(ViewWidget::Directions::Forward);
});
auto go_last_action = GUI::Action::create("Go to &Last", { Mod_None, Key_End }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"sv)),
[&](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() * 1.44f);
},
window);
auto reset_zoom_action = GUI::CommonActions::make_reset_zoom_action(
[&](auto&) {
widget->set_scale(1.f);
},
window);
auto fit_image_to_view_action = GUI::Action::create(
"Fit Image To &View", TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/fit-image-to-view.png"sv)), [&](auto&) {
widget->fit_content_to_view();
});
auto zoom_out_action = GUI::CommonActions::make_zoom_out_action(
[&](auto&) {
widget->set_scale(widget->scale() / 1.44f);
},
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());
});
auto nearest_neighbor_action = GUI::Action::create_checkable("&Nearest Neighbor", [&](auto&) {
widget->set_scaling_mode(Gfx::Painter::ScalingMode::NearestNeighbor);
});
nearest_neighbor_action->set_checked(true);
auto smooth_pixels_action = GUI::Action::create_checkable("&Smooth Pixels", [&](auto&) {
widget->set_scaling_mode(Gfx::Painter::ScalingMode::SmoothPixels);
});
auto bilinear_action = GUI::Action::create_checkable("&Bilinear", [&](auto&) {
widget->set_scaling_mode(Gfx::Painter::ScalingMode::BilinearBlend);
});
widget->on_image_change = [&](Gfx::Bitmap const* bitmap) {
bool should_enable_image_actions = (bitmap != nullptr);
bool should_enable_forward_actions = (widget->is_next_available() && should_enable_image_actions);
bool should_enable_backward_actions = (widget->is_previous_available() && should_enable_image_actions);
delete_action->set_enabled(should_enable_image_actions);
rotate_counterclockwise_action->set_enabled(should_enable_image_actions);
rotate_clockwise_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_backward_actions);
go_back_action->set_enabled(should_enable_backward_actions);
go_forward_action->set_enabled(should_enable_forward_actions);
go_last_action->set_enabled(should_enable_forward_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");
}
};
(void)TRY(main_toolbar->try_add_action(open_action));
(void)TRY(main_toolbar->try_add_action(delete_action));
(void)TRY(main_toolbar->try_add_separator());
(void)TRY(main_toolbar->try_add_action(go_first_action));
(void)TRY(main_toolbar->try_add_action(go_back_action));
(void)TRY(main_toolbar->try_add_action(go_forward_action));
(void)TRY(main_toolbar->try_add_action(go_last_action));
(void)TRY(main_toolbar->try_add_separator());
(void)TRY(main_toolbar->try_add_action(zoom_in_action));
(void)TRY(main_toolbar->try_add_action(reset_zoom_action));
(void)TRY(main_toolbar->try_add_action(zoom_out_action));
auto file_menu = TRY(window->try_add_menu("&File"));
TRY(file_menu->try_add_action(open_action));
TRY(file_menu->try_add_action(delete_action));
TRY(file_menu->try_add_separator());
TRY(file_menu->try_add_action(quit_action));
auto image_menu = TRY(window->try_add_menu("&Image"));
TRY(image_menu->try_add_action(rotate_counterclockwise_action));
TRY(image_menu->try_add_action(rotate_clockwise_action));
TRY(image_menu->try_add_action(vertical_flip_action));
TRY(image_menu->try_add_action(horizontal_flip_action));
TRY(image_menu->try_add_separator());
TRY(image_menu->try_add_action(desktop_wallpaper_action));
auto navigate_menu = TRY(window->try_add_menu("&Navigate"));
TRY(navigate_menu->try_add_action(go_first_action));
TRY(navigate_menu->try_add_action(go_back_action));
TRY(navigate_menu->try_add_action(go_forward_action));
TRY(navigate_menu->try_add_action(go_last_action));
auto view_menu = TRY(window->try_add_menu("&View"));
TRY(view_menu->try_add_action(full_screen_action));
TRY(view_menu->try_add_separator());
TRY(view_menu->try_add_action(zoom_in_action));
TRY(view_menu->try_add_action(reset_zoom_action));
TRY(view_menu->try_add_action(fit_image_to_view_action));
TRY(view_menu->try_add_action(zoom_out_action));
TRY(view_menu->try_add_separator());
auto scaling_mode_menu = TRY(view_menu->try_add_submenu("&Scaling Mode"));
scaling_mode_menu->set_icon(TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/scale.png"sv)));
auto scaling_mode_group = make<GUI::ActionGroup>();
scaling_mode_group->set_exclusive(true);
scaling_mode_group->add_action(*nearest_neighbor_action);
scaling_mode_group->add_action(*smooth_pixels_action);
scaling_mode_group->add_action(*bilinear_action);
TRY(scaling_mode_menu->try_add_action(nearest_neighbor_action));
TRY(scaling_mode_menu->try_add_action(smooth_pixels_action));
TRY(scaling_mode_menu->try_add_action(bilinear_action));
TRY(view_menu->try_add_separator());
TRY(view_menu->try_add_action(hide_show_toolbar_action));
auto help_menu = TRY(window->try_add_menu("&Help"));
TRY(help_menu->try_add_action(GUI::CommonActions::make_command_palette_action(window)));
TRY(help_menu->try_add_action(GUI::CommonActions::make_help_action([](auto&) {
Desktop::Launcher::open(URL::create_with_file_scheme("/usr/share/man/man1/ImageViewer.md"), "/bin/Help");
})));
TRY(help_menu->try_add_action(GUI::CommonActions::make_about_action("Image Viewer", app_icon, window)));
if (path != nullptr) {
widget->load_from_file(path);
} else {
widget->clear();
}
window->show();
return app->exec();
}
Reference in New Issue View Git Blame Copy Permalink