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LibGfx: Rename from LibDraw :^)
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215 changed files with 291 additions and 291 deletions
132
Libraries/LibGfx/Font.h
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132
Libraries/LibGfx/Font.h
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/MappedFile.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <AK/Utf8View.h>
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#include <LibGfx/Rect.h>
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namespace Gfx {
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// FIXME: Make a MutableGlyphBitmap buddy class for FontEditor instead?
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class GlyphBitmap {
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friend class Font;
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public:
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const unsigned* rows() const { return m_rows; }
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unsigned row(unsigned index) const { return m_rows[index]; }
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bool bit_at(int x, int y) const { return row(y) & (1 << x); }
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void set_bit_at(int x, int y, bool b)
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{
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auto& mutable_row = const_cast<unsigned*>(m_rows)[y];
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if (b)
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mutable_row |= 1 << x;
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else
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mutable_row &= ~(1 << x);
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}
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Size size() const { return m_size; }
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int width() const { return m_size.width(); }
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int height() const { return m_size.height(); }
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private:
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GlyphBitmap(const unsigned* rows, Size size)
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: m_rows(rows)
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, m_size(size)
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{
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}
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const unsigned* m_rows { nullptr };
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Size m_size;
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};
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class Font : public RefCounted<Font> {
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public:
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static Font& default_font();
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static Font& default_bold_font();
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static Font& default_fixed_width_font();
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static Font& default_bold_fixed_width_font();
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RefPtr<Font> clone() const;
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static RefPtr<Font> load_from_file(const StringView& path);
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bool write_to_file(const StringView& path);
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~Font();
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GlyphBitmap glyph_bitmap(char ch) const { return GlyphBitmap(&m_rows[(u8)ch * m_glyph_height], { glyph_width(ch), m_glyph_height }); }
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u8 glyph_width(char ch) const { return m_fixed_width ? m_glyph_width : m_glyph_widths[(u8)ch]; }
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int glyph_or_emoji_width(u32 codepoint) const;
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u8 glyph_height() const { return m_glyph_height; }
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u8 min_glyph_width() const { return m_min_glyph_width; }
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u8 max_glyph_width() const { return m_max_glyph_width; }
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int width(const StringView&) const;
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int width(const Utf8View&) const;
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String name() const { return m_name; }
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void set_name(const StringView& name) { m_name = name; }
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bool is_fixed_width() const { return m_fixed_width; }
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void set_fixed_width(bool b) { m_fixed_width = b; }
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u8 glyph_spacing() const { return m_glyph_spacing; }
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void set_glyph_spacing(u8 spacing) { m_glyph_spacing = spacing; }
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void set_glyph_width(char ch, u8 width)
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{
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ASSERT(m_glyph_widths);
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m_glyph_widths[(u8)ch] = width;
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}
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private:
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Font(const StringView& name, unsigned* rows, u8* widths, bool is_fixed_width, u8 glyph_width, u8 glyph_height, u8 glyph_spacing);
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static RefPtr<Font> load_from_memory(const u8*);
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String m_name;
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unsigned* m_rows { nullptr };
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u8* m_glyph_widths { nullptr };
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MappedFile m_mapped_file;
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u8 m_glyph_width { 0 };
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u8 m_glyph_height { 0 };
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u8 m_min_glyph_width { 0 };
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u8 m_max_glyph_width { 0 };
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u8 m_glyph_spacing { 0 };
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bool m_fixed_width { false };
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};
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}
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