Luna/libui/include/ui/Label.h

/**
 * @file Label.h
 * @author apio (cloudapio.eu)
 * @brief A simple one-line text widget.
 *
 * @copyright Copyright (c) 2023, the Luna authors.
 *
 */

#pragma once
#include <os/File.h>
#include <ui/Alignment.h>
#include <ui/Font.h>
#include <ui/Widget.h>

namespace ui
{
    /**
     * @brief Displays one line of text.
     *
     * This component does not handle newlines.
     */
    class Label final : public Widget
    {
      public:
        Label(Window* window, Widget* parent);

        void set_alignment(VerticalAlignment valign, HorizontalAlignment halign)
        {
            m_valign = valign;
            m_halign = halign;
        }

        void set_color(ui::Color color)
        {
            m_color = color;
        }

        void set_font(SharedPtr<ui::Font> font)
        {
            m_font = font;
        }

        void set_text(StringView text)
        {
            m_text = text;
        }

        Result<void> draw(Canvas& canvas) override;

        void recalculate_pseudo_rects() override;

        void show_tree(int indent) override
        {
            os::println("%*s- ui::Label '%s' (%d,%d,%d,%d)", indent, "", m_text.chars(), m_rect.pos.x, m_rect.pos.y,
                        m_rect.width, m_rect.height);
        }

      private:
        StringView m_text;
        VerticalAlignment m_valign = VerticalAlignment::Center;
        HorizontalAlignment m_halign = HorizontalAlignment::Center;
        ui::Color m_color = ui::WHITE;
        SharedPtr<Font> m_font;
    };
}