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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Painter.h>
#include <LibGUI/Tray.h>
#include <LibGfx/Font.h>
#include <LibGfx/Palette.h>
#include <LibGfx/StylePainter.h>
REGISTER_WIDGET(GUI, Tray);
namespace GUI {
Tray::Tray()
{
set_fill_with_background_color(true);
set_background_role(Gfx::ColorRole::Tray);
set_focus_policy(GUI::FocusPolicy::TabFocus);
}
Gfx::IntRect Tray::Item::rect(Tray const& tray) const
{
static constexpr int item_height = 22;
return Gfx::IntRect {
tray.frame_thickness(),
tray.frame_thickness() + static_cast<int>(index) * item_height,
tray.frame_inner_rect().width(),
item_height,
};
}
size_t Tray::add_item(String text, RefPtr<Gfx::Bitmap> bitmap, String custom_data)
{
auto new_index = m_items.size();
m_items.append(Item {
.text = move(text),
.bitmap = move(bitmap),
.custom_data = move(custom_data),
.index = new_index,
});
update();
return new_index;
}
void Tray::set_item_checked(size_t index, bool checked)
{
if (checked) {
m_checked_item_index = index;
} else {
if (m_checked_item_index == index)
m_checked_item_index = {};
}
update();
}
void Tray::paint_event(GUI::PaintEvent& event)
{
GUI::Frame::paint_event(event);
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
for (auto& item : m_items) {
auto rect = item.rect(*this);
bool is_pressed = item.index == m_pressed_item_index;
bool is_hovered = item.index == m_hovered_item_index;
bool is_checked = item.index == m_checked_item_index;
Gfx::StylePainter::paint_button(painter, rect, palette(), Gfx::ButtonStyle::Tray, is_pressed && is_hovered, is_hovered, is_checked, is_enabled());
Gfx::IntRect icon_rect {
rect.x() + 4,
0,
16,
16,
};
icon_rect.center_vertically_within(rect);
Gfx::IntRect text_rect {
icon_rect.right() + 5,
rect.y(),
rect.width(),
rect.height(),
};
text_rect.intersect(rect);
if (is_pressed && is_hovered) {
icon_rect.translate_by(1, 1);
text_rect.translate_by(1, 1);
}
if (item.bitmap)
painter.blit(icon_rect.location(), *item.bitmap, item.bitmap->rect());
auto const& font = is_checked ? this->font().bold_variant() : this->font();
painter.draw_text(text_rect, item.text, font, Gfx::TextAlignment::CenterLeft, palette().color(Gfx::ColorRole::TrayText));
}
}
void Tray::mousemove_event(GUI::MouseEvent& event)
{
auto* hovered_item = item_at(event.position());
if (!hovered_item) {
if (m_hovered_item_index.has_value())
update();
m_hovered_item_index = {};
return;
}
if (m_hovered_item_index != hovered_item->index) {
m_hovered_item_index = hovered_item->index;
update();
}
}
void Tray::mousedown_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Primary)
return;
auto* pressed_item = item_at(event.position());
if (!pressed_item)
return;
if (m_pressed_item_index != pressed_item->index) {
m_pressed_item_index = pressed_item->index;
update();
}
}
void Tray::mouseup_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Primary)
return;
if (auto* pressed_item = item_at(event.position()); pressed_item && m_pressed_item_index == pressed_item->index) {
on_item_activation(pressed_item->custom_data);
}
m_pressed_item_index = {};
update();
}
void Tray::leave_event(Core::Event&)
{
m_hovered_item_index = {};
update();
}
Tray::Item* Tray::item_at(Gfx::IntPoint const& position)
{
for (auto& item : m_items) {
if (item.rect(*this).contains(position))
return &item;
}
return nullptr;
}
void Tray::focusin_event(GUI::FocusEvent&)
{
if (m_items.is_empty())
return;
m_hovered_item_index = 0;
update();
}
void Tray::focusout_event(GUI::FocusEvent&)
{
if (m_items.is_empty())
return;
m_hovered_item_index = {};
update();
}
void Tray::keydown_event(GUI::KeyEvent& event)
{
if (m_items.is_empty() || event.modifiers())
return Frame::keydown_event(event);
if (event.key() == KeyCode::Key_Down) {
if (!m_hovered_item_index.has_value())
m_hovered_item_index = 0;
else
m_hovered_item_index = (*m_hovered_item_index + 1) % m_items.size();
update();
return;
}
if (event.key() == KeyCode::Key_Up) {
if (!m_hovered_item_index.has_value() || m_hovered_item_index == 0u)
m_hovered_item_index = m_items.size() - 1;
else
m_hovered_item_index = *m_hovered_item_index - 1;
update();
return;
}
if (event.key() == KeyCode::Key_Return) {
if (m_hovered_item_index.has_value())
on_item_activation(m_items[*m_hovered_item_index].custom_data);
return;
}
Frame::keydown_event(event);
}
}
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