Libraries: Move to Userland/Libraries/

1 files changed, 159 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGfx/FontDatabase.cpp b/Userland/Libraries/LibGfx/FontDatabase.cpp
new file mode 100644
index 0000000000..4fe466ece9
--- /dev/null
+++ b/Userland/Libraries/LibGfx/FontDatabase.cpp
@@ -0,0 +1,159 @@
+/*
+ * 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.
+ */
+
+#include <AK/NonnullRefPtrVector.h>
+#include <AK/QuickSort.h>
+#include <LibCore/DirIterator.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/FontDatabase.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+namespace Gfx {
+
+static FontDatabase* s_the;
+
+FontDatabase& FontDatabase::the()
+{
+    if (!s_the)
+        s_the = new FontDatabase;
+    return *s_the;
+}
+
+Font& FontDatabase::default_font()
+{
+    static Font* font;
+    if (!font) {
+        font = FontDatabase::the().get_by_name("Katica 10 400");
+        ASSERT(font);
+    }
+    return *font;
+}
+
+Font& FontDatabase::default_fixed_width_font()
+{
+    static Font* font;
+    if (!font) {
+        font = FontDatabase::the().get_by_name("Csilla 10 400");
+        ASSERT(font);
+    }
+    return *font;
+}
+
+Font& FontDatabase::default_bold_fixed_width_font()
+{
+    static Font* font;
+    if (!font) {
+        font = FontDatabase::the().get_by_name("Csilla 10 700");
+        ASSERT(font);
+    }
+    return *font;
+}
+
+Font& FontDatabase::default_bold_font()
+{
+    static Font* font;
+    if (!font) {
+        font = FontDatabase::the().get_by_name("Katica 10 700");
+        ASSERT(font);
+    }
+    return *font;
+}
+
+struct FontDatabase::Private {
+    HashMap<String, RefPtr<Gfx::Font>> full_name_to_font_map;
+};
+
+FontDatabase::FontDatabase()
+    : m_private(make<Private>())
+{
+    Core::DirIterator di("/res/fonts", Core::DirIterator::SkipDots);
+    if (di.has_error()) {
+        fprintf(stderr, "DirIterator: %s\n", di.error_string());
+        exit(1);
+    }
+    while (di.has_next()) {
+        String name = di.next_path();
+        if (!name.ends_with(".font"))
+            continue;
+
+        auto path = String::format("/res/fonts/%s", name.characters());
+        if (auto font = Gfx::Font::load_from_file(path)) {
+            m_private->full_name_to_font_map.set(font->qualified_name(), font);
+        }
+    }
+}
+
+FontDatabase::~FontDatabase()
+{
+}
+
+void FontDatabase::for_each_font(Function<void(const Gfx::Font&)> callback)
+{
+    Vector<RefPtr<Gfx::Font>> fonts;
+    fonts.ensure_capacity(m_private->full_name_to_font_map.size());
+    for (auto& it : m_private->full_name_to_font_map)
+        fonts.append(it.value);
+    quick_sort(fonts, [](auto& a, auto& b) { return a->qualified_name() < b->qualified_name(); });
+    for (auto& font : fonts)
+        callback(*font);
+}
+
+void FontDatabase::for_each_fixed_width_font(Function<void(const Gfx::Font&)> callback)
+{
+    Vector<RefPtr<Gfx::Font>> fonts;
+    fonts.ensure_capacity(m_private->full_name_to_font_map.size());
+    for (auto& it : m_private->full_name_to_font_map) {
+        if (it.value->is_fixed_width())
+            fonts.append(it.value);
+    }
+    quick_sort(fonts, [](auto& a, auto& b) { return a->qualified_name() < b->qualified_name(); });
+    for (auto& font : fonts)
+        callback(*font);
+}
+
+RefPtr<Gfx::Font> FontDatabase::get_by_name(const StringView& name)
+{
+    auto it = m_private->full_name_to_font_map.find(name);
+    if (it == m_private->full_name_to_font_map.end()) {
+        dbgln("Font lookup failed: '{}'", name);
+        return nullptr;
+    }
+    return it->value;
+}
+
+RefPtr<Gfx::Font> FontDatabase::get(const String& family, unsigned size, unsigned weight)
+{
+    for (auto& it : m_private->full_name_to_font_map) {
+        auto& font = *it.value;
+        if (font.family() == family && font.presentation_size() == size && font.weight() == weight)
+            return font;
+    }
+    return nullptr;
+}
+
+}