LibGfx: Rename from LibDraw :^)

2025-07-27 07:37:46 +00:00 · 2020-02-06 12:04:00 +01:00 · 2020-02-06 12:04:00 +01:00 · 9ac94d393e
commit 9ac94d393e
parent 11580babbf
215 changed files with 291 additions and 291 deletions
--- a/Libraries/LibGfx/Font.h
+++ b/Libraries/LibGfx/Font.h
@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/MappedFile.h>
+#include <AK/RefCounted.h>
+#include <AK/RefPtr.h>
+#include <AK/String.h>
+#include <AK/Types.h>
+#include <AK/Utf8View.h>
+#include <LibGfx/Rect.h>
+
+namespace Gfx {
+
+// FIXME: Make a MutableGlyphBitmap buddy class for FontEditor instead?
+class GlyphBitmap {
+    friend class Font;
+
+public:
+    const unsigned* rows() const { return m_rows; }
+    unsigned row(unsigned index) const { return m_rows[index]; }
+
+    bool bit_at(int x, int y) const { return row(y) & (1 << x); }
+    void set_bit_at(int x, int y, bool b)
+    {
+        auto& mutable_row = const_cast<unsigned*>(m_rows)[y];
+        if (b)
+            mutable_row |= 1 << x;
+        else
+            mutable_row &= ~(1 << x);
+    }
+
+    Size size() const { return m_size; }
+    int width() const { return m_size.width(); }
+    int height() const { return m_size.height(); }
+
+private:
+    GlyphBitmap(const unsigned* rows, Size size)
+        : m_rows(rows)
+        , m_size(size)
+    {
+    }
+
+    const unsigned* m_rows { nullptr };
+    Size m_size;
+};
+
+class Font : public RefCounted<Font> {
+public:
+    static Font& default_font();
+    static Font& default_bold_font();
+
+    static Font& default_fixed_width_font();
+    static Font& default_bold_fixed_width_font();
+
+    RefPtr<Font> clone() const;
+
+    static RefPtr<Font> load_from_file(const StringView& path);
+    bool write_to_file(const StringView& path);
+
+    ~Font();
+
+    GlyphBitmap glyph_bitmap(char ch) const { return GlyphBitmap(&m_rows[(u8)ch * m_glyph_height], { glyph_width(ch), m_glyph_height }); }
+
+    u8 glyph_width(char ch) const { return m_fixed_width ? m_glyph_width : m_glyph_widths[(u8)ch]; }
+    int glyph_or_emoji_width(u32 codepoint) const;
+    u8 glyph_height() const { return m_glyph_height; }
+    u8 min_glyph_width() const { return m_min_glyph_width; }
+    u8 max_glyph_width() const { return m_max_glyph_width; }
+    int width(const StringView&) const;
+    int width(const Utf8View&) const;
+
+    String name() const { return m_name; }
+    void set_name(const StringView& name) { m_name = name; }
+
+    bool is_fixed_width() const { return m_fixed_width; }
+    void set_fixed_width(bool b) { m_fixed_width = b; }
+
+    u8 glyph_spacing() const { return m_glyph_spacing; }
+    void set_glyph_spacing(u8 spacing) { m_glyph_spacing = spacing; }
+
+    void set_glyph_width(char ch, u8 width)
+    {
+        ASSERT(m_glyph_widths);
+        m_glyph_widths[(u8)ch] = width;
+    }
+
+private:
+    Font(const StringView& name, unsigned* rows, u8* widths, bool is_fixed_width, u8 glyph_width, u8 glyph_height, u8 glyph_spacing);
+
+    static RefPtr<Font> load_from_memory(const u8*);
+
+    String m_name;
+
+    unsigned* m_rows { nullptr };
+    u8* m_glyph_widths { nullptr };
+    MappedFile m_mapped_file;
+
+    u8 m_glyph_width { 0 };
+    u8 m_glyph_height { 0 };
+    u8 m_min_glyph_width { 0 };
+    u8 m_max_glyph_width { 0 };
+    u8 m_glyph_spacing { 0 };
+
+    bool m_fixed_width { false };
+};
+
+}