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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021, Antonio Di Stefano <tonio9681@gmail.com>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "PreviewWidget.h"
#include <AK/LexicalPath.h>
#include <AK/StringView.h>
#include <Applications/ThemeEditor/WindowPreviewGML.h>
#include <LibCore/MimeData.h>
#include <LibFileSystemAccessClient/Client.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Painter.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/WindowTheme.h>
REGISTER_WIDGET(ThemeEditor, PreviewWidget);
namespace ThemeEditor {
class MiniWidgetGallery final : public GUI::Widget {
C_OBJECT_ABSTRACT(MiniWidgetGallery);
public:
static ErrorOr<NonnullRefPtr<MiniWidgetGallery>> try_create()
{
auto gallery = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) MiniWidgetGallery()));
TRY(gallery->load_from_gml(window_preview_gml));
gallery->for_each_child_widget([](auto& child) {
child.set_focus_policy(GUI::FocusPolicy::NoFocus);
return IterationDecision::Continue;
});
return gallery;
}
void set_preview_palette(Gfx::Palette const& palette)
{
set_palette(palette);
Function<void(GUI::Widget&)> recurse = [&](GUI::Widget& parent_widget) {
parent_widget.for_each_child_widget([&](auto& widget) {
widget.set_palette(palette);
recurse(widget);
return IterationDecision::Continue;
});
};
recurse(*this);
}
private:
MiniWidgetGallery()
{
}
};
ErrorOr<NonnullRefPtr<PreviewWidget>> PreviewWidget::try_create()
{
auto preview_widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) PreviewWidget()));
preview_widget->m_gallery = TRY(preview_widget->try_add<MiniWidgetGallery>());
return preview_widget;
}
PreviewWidget::PreviewWidget()
: GUI::AbstractThemePreview(GUI::Application::the()->palette())
{
set_greedy_for_hits(true);
}
void PreviewWidget::palette_changed()
{
m_gallery->set_preview_palette(preview_palette());
update_preview_window_locations();
}
void PreviewWidget::set_color_filter(OwnPtr<Gfx::ColorBlindnessFilter> color_filter)
{
m_color_filter = move(color_filter);
repaint();
}
void PreviewWidget::update_preview_window_locations()
{
auto& palette = preview_palette();
int window_title_height = palette.metric(Gfx::MetricRole::TitleHeight)
+ palette.metric(Gfx::MetricRole::BorderThickness);
constexpr int inactive_offset_x = -20;
int inactive_offset_y = -(window_title_height + 4);
constexpr int hightlight_offset_x = 140;
int hightlight_offset_y = window_title_height + 40;
m_active_window_rect = Gfx::IntRect(0, 0, 320, 220);
m_inactive_window_rect = m_active_window_rect.translated(inactive_offset_x, inactive_offset_y);
m_highlight_window_rect = Gfx::IntRect(m_active_window_rect.location(), { 160, 70 }).translated(hightlight_offset_x, hightlight_offset_y);
auto window_group = Array {
Window { m_active_window_rect },
Window { m_inactive_window_rect },
Window { m_highlight_window_rect },
};
center_window_group_within(window_group, frame_inner_rect());
m_gallery->set_relative_rect(m_active_window_rect);
}
void PreviewWidget::paint_preview(GUI::PaintEvent&)
{
paint_window("Inactive window"sv, m_inactive_window_rect, Gfx::WindowTheme::WindowState::Inactive, active_window_icon());
paint_window("Active window"sv, m_active_window_rect, Gfx::WindowTheme::WindowState::Active, inactive_window_icon());
}
void PreviewWidget::paint_hightlight_window()
{
GUI::Painter painter(*this);
paint_window("Highlight window"sv, m_highlight_window_rect, Gfx::WindowTheme::WindowState::Highlighted, inactive_window_icon(), 1);
auto button_rect = Gfx::IntRect(0, 0, 80, 22).centered_within(m_highlight_window_rect);
Gfx::StylePainter::paint_button(painter, button_rect, preview_palette(), Gfx::ButtonStyle::Normal, false, false, false, true, false, false);
painter.draw_text(button_rect, ":^)"sv, Gfx::TextAlignment::Center, preview_palette().color(foreground_role()), Gfx::TextElision::Right, Gfx::TextWrapping::DontWrap);
}
void PreviewWidget::second_paint_event(GUI::PaintEvent&)
{
GUI::Painter painter(*this);
paint_hightlight_window();
if (!m_color_filter)
return;
auto target = painter.target();
auto bitmap_clone_or_error = target->clone();
if (bitmap_clone_or_error.is_error())
return;
auto clone = bitmap_clone_or_error.release_value();
auto rect = target->rect();
m_color_filter->apply(*target, rect, *clone, rect);
}
void PreviewWidget::resize_event(GUI::ResizeEvent&)
{
update_preview_window_locations();
}
void PreviewWidget::drag_enter_event(GUI::DragEvent& event)
{
auto const& mime_types = event.mime_types();
if (mime_types.contains_slow("text/uri-list"))
event.accept();
}
void PreviewWidget::drop_event(GUI::DropEvent& event)
{
event.accept();
window()->move_to_front();
if (event.mime_data().has_urls()) {
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
if (urls.size() > 1) {
GUI::MessageBox::show(window(), "ThemeEditor can only open one file at a time!"sv, "One at a time please!"sv, GUI::MessageBox::Type::Error);
return;
}
auto response = FileSystemAccessClient::Client::the().try_request_file_deprecated(window(), urls.first().path(), Core::OpenMode::ReadOnly);
if (response.is_error())
return;
auto set_theme_from_file_result = set_theme_from_file(response.release_value());
if (set_theme_from_file_result.is_error())
GUI::MessageBox::show_error(window(), DeprecatedString::formatted("Setting theme from file has failed: {}", set_theme_from_file_result.error()));
}
}
}
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