jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
4 * Copyright (c) 2021, Antonio Di Stefano <tonio9681@gmail.com>
5 * Copyright (c) 2022, the SerenityOS developers.
6 *
7 * SPDX-License-Identifier: BSD-2-Clause
8 */
9
10#include "PreviewWidget.h"
11#include <AK/LexicalPath.h>
12#include <AK/StringView.h>
13#include <Applications/ThemeEditor/WindowPreviewGML.h>
14#include <LibCore/MimeData.h>
15#include <LibFileSystemAccessClient/Client.h>
16#include <LibGUI/MessageBox.h>
17#include <LibGUI/Painter.h>
18#include <LibGfx/Bitmap.h>
19#include <LibGfx/WindowTheme.h>
20
21REGISTER_WIDGET(ThemeEditor, PreviewWidget);
22
23namespace ThemeEditor {
24
25class MiniWidgetGallery final : public GUI::Widget {
26 C_OBJECT_ABSTRACT(MiniWidgetGallery);
27
28public:
29 static ErrorOr<NonnullRefPtr<MiniWidgetGallery>> try_create()
30 {
31 auto gallery = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) MiniWidgetGallery()));
32 TRY(gallery->load_from_gml(window_preview_gml));
33
34 gallery->for_each_child_widget([](auto& child) {
35 child.set_focus_policy(GUI::FocusPolicy::NoFocus);
36 return IterationDecision::Continue;
37 });
38
39 return gallery;
40 }
41
42 void set_preview_palette(Gfx::Palette& palette)
43 {
44 set_palette(palette);
45 Function<void(GUI::Widget&)> recurse = [&](GUI::Widget& parent_widget) {
46 parent_widget.for_each_child_widget([&](auto& widget) {
47 widget.set_palette(palette);
48 recurse(widget);
49 return IterationDecision::Continue;
50 });
51 };
52 recurse(*this);
53 }
54
55private:
56 MiniWidgetGallery()
57 {
58 }
59};
60
61ErrorOr<NonnullRefPtr<PreviewWidget>> PreviewWidget::try_create()
62{
63 auto preview_widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) PreviewWidget()));
64 preview_widget->m_gallery = TRY(preview_widget->try_add<MiniWidgetGallery>());
65 return preview_widget;
66}
67
68PreviewWidget::PreviewWidget()
69 : GUI::AbstractThemePreview(GUI::Application::the()->palette())
70{
71 set_greedy_for_hits(true);
72}
73
74void PreviewWidget::palette_changed()
75{
76 m_gallery->set_preview_palette(preview_palette());
77 update_preview_window_locations();
78}
79
80void PreviewWidget::set_color_filter(OwnPtr<Gfx::ColorBlindnessFilter> color_filter)
81{
82 m_color_filter = move(color_filter);
83 repaint();
84}
85
86void PreviewWidget::update_preview_window_locations()
87{
88 auto& palette = preview_palette();
89 int window_title_height = palette.metric(Gfx::MetricRole::TitleHeight)
90 + palette.metric(Gfx::MetricRole::BorderThickness);
91
92 constexpr int inactive_offset_x = -20;
93 int inactive_offset_y = -(window_title_height + 4);
94 constexpr int hightlight_offset_x = 140;
95 int hightlight_offset_y = window_title_height + 40;
96
97 m_active_window_rect = Gfx::IntRect(0, 0, 320, 220);
98 m_inactive_window_rect = m_active_window_rect.translated(inactive_offset_x, inactive_offset_y);
99 m_highlight_window_rect = Gfx::IntRect(m_active_window_rect.location(), { 160, 70 }).translated(hightlight_offset_x, hightlight_offset_y);
100
101 auto window_group = Array {
102 Window { m_active_window_rect },
103 Window { m_inactive_window_rect },
104 Window { m_highlight_window_rect },
105 };
106
107 center_window_group_within(window_group, frame_inner_rect());
108
109 m_gallery->set_relative_rect(m_active_window_rect);
110}
111
112void PreviewWidget::paint_preview(GUI::PaintEvent&)
113{
114 paint_window("Inactive window"sv, m_inactive_window_rect, Gfx::WindowTheme::WindowState::Inactive, active_window_icon());
115 paint_window("Active window"sv, m_active_window_rect, Gfx::WindowTheme::WindowState::Active, inactive_window_icon());
116}
117
118void PreviewWidget::paint_hightlight_window()
119{
120 GUI::Painter painter(*this);
121 paint_window("Highlight window"sv, m_highlight_window_rect, Gfx::WindowTheme::WindowState::Highlighted, inactive_window_icon(), 1);
122 auto button_rect = Gfx::IntRect(0, 0, 80, 22).centered_within(m_highlight_window_rect);
123 Gfx::StylePainter::paint_button(painter, button_rect, preview_palette(), Gfx::ButtonStyle::Normal, false, false, false, true, false, false);
124 painter.draw_text(button_rect, ":^)"sv, Gfx::TextAlignment::Center, preview_palette().color(foreground_role()), Gfx::TextElision::Right, Gfx::TextWrapping::DontWrap);
125}
126
127void PreviewWidget::second_paint_event(GUI::PaintEvent&)
128{
129 GUI::Painter painter(*this);
130
131 paint_hightlight_window();
132
133 if (!m_color_filter)
134 return;
135
136 auto target = painter.target();
137 auto bitmap_clone_or_error = target->clone();
138 if (bitmap_clone_or_error.is_error())
139 return;
140
141 auto clone = bitmap_clone_or_error.release_value();
142 auto rect = target->rect();
143
144 m_color_filter->apply(*target, rect, *clone, rect);
145}
146
147void PreviewWidget::resize_event(GUI::ResizeEvent&)
148{
149 update_preview_window_locations();
150}
151
152}