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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <LibCore/EventLoop.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Painter.h>
#include <LibGUI/SeparatorWidget.h>
#include <LibGUI/Toolbar.h>
#include <LibGfx/Palette.h>
REGISTER_WIDGET(GUI, Toolbar)
namespace GUI {
Toolbar::Toolbar(Orientation orientation, int button_size)
: m_orientation(orientation)
, m_button_size(button_size)
{
if (m_orientation == Orientation::Horizontal) {
set_fixed_height(button_size + 8);
} else {
set_fixed_width(button_size + 8);
}
set_layout<BoxLayout>(orientation);
layout()->set_spacing(0);
layout()->set_margins({ 2, 2, 2, 2 });
}
class ToolbarButton final : public Button {
C_OBJECT(ToolbarButton);
public:
virtual ~ToolbarButton() override = default;
private:
explicit ToolbarButton(Action& action)
{
if (action.group() && action.group()->is_exclusive())
set_exclusive(true);
set_action(action);
set_tooltip(tooltip(action));
set_focus_policy(FocusPolicy::NoFocus);
if (action.icon())
set_icon(action.icon());
else
set_text(action.text());
set_button_style(Gfx::ButtonStyle::Coolbar);
}
String tooltip(Action const& action) const
{
StringBuilder builder;
builder.append(action.text());
if (action.shortcut().is_valid()) {
builder.append(" (");
builder.append(action.shortcut().to_string());
builder.append(")");
}
return builder.to_string();
}
virtual void enter_event(Core::Event& event) override
{
auto* app = Application::the();
if (app && action())
Core::EventLoop::current().post_event(*app, make<ActionEvent>(ActionEvent::Type::ActionEnter, *action()));
return Button::enter_event(event);
}
virtual void leave_event(Core::Event& event) override
{
auto* app = Application::the();
if (app && action())
Core::EventLoop::current().post_event(*app, make<ActionEvent>(ActionEvent::Type::ActionLeave, *action()));
return Button::leave_event(event);
}
};
ErrorOr<NonnullRefPtr<GUI::Button>> Toolbar::try_add_action(Action& action)
{
auto item = TRY(adopt_nonnull_own_or_enomem(new (nothrow) Item));
item->type = Item::Type::Action;
item->action = action;
// NOTE: Grow the m_items capacity before potentially adding a child widget.
// This avoids having to untangle the child widget in case of allocation failure.
TRY(m_items.try_ensure_capacity(m_items.size() + 1));
auto button = TRY(try_add<ToolbarButton>(action));
button->set_fixed_size(m_button_size + 8, m_button_size + 8);
m_items.unchecked_append(move(item));
return button;
}
GUI::Button& Toolbar::add_action(Action& action)
{
auto button = MUST(try_add_action(action));
return *button;
}
ErrorOr<void> Toolbar::try_add_separator()
{
// NOTE: Grow the m_items capacity before potentially adding a child widget.
TRY(m_items.try_ensure_capacity(m_items.size() + 1));
auto item = TRY(adopt_nonnull_own_or_enomem(new (nothrow) Item));
item->type = Item::Type::Separator;
(void)TRY(try_add<SeparatorWidget>(m_orientation == Gfx::Orientation::Horizontal ? Gfx::Orientation::Vertical : Gfx::Orientation::Horizontal));
m_items.unchecked_append(move(item));
return {};
}
void Toolbar::add_separator()
{
MUST(try_add_separator());
}
void Toolbar::paint_event(PaintEvent& event)
{
Painter painter(*this);
painter.add_clip_rect(event.rect());
painter.fill_rect(event.rect(), palette().button());
}
Optional<UISize> Toolbar::calculated_preferred_size() const
{
if (m_orientation == Gfx::Orientation::Horizontal)
return { { SpecialDimension::Grow, SpecialDimension::Fit } };
else
return { { SpecialDimension::Fit, SpecialDimension::Grow } };
VERIFY_NOT_REACHED();
}
}
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