1 files changed, 86 insertions, 0 deletions
diff --git a/Userland/Libraries/LibGUI/Icon.h b/Userland/Libraries/LibGUI/Icon.h
new file mode 100644
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+++ b/Userland/Libraries/LibGUI/Icon.h
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+/*
+ * 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/HashMap.h>
+#include <AK/NonnullRefPtr.h>
+#include <AK/RefCounted.h>
+#include <LibGfx/Bitmap.h>
+
+namespace GUI {
+
+class IconImpl : public RefCounted<IconImpl> {
+public:
+    static NonnullRefPtr<IconImpl> create() { return adopt(*new IconImpl); }
+    ~IconImpl() { }
+
+    const Gfx::Bitmap* bitmap_for_size(int) const;
+    void set_bitmap_for_size(int, RefPtr<Gfx::Bitmap>&&);
+
+    Vector<int> sizes() const
+    {
+        Vector<int> sizes;
+        for (auto& it : m_bitmaps)
+            sizes.append(it.key);
+        return sizes;
+    }
+
+private:
+    IconImpl() { }
+    HashMap<int, RefPtr<Gfx::Bitmap>> m_bitmaps;
+};
+
+class Icon {
+public:
+    Icon();
+    explicit Icon(RefPtr<Gfx::Bitmap>&&);
+    explicit Icon(RefPtr<Gfx::Bitmap>&&, RefPtr<Gfx::Bitmap>&&);
+    explicit Icon(const IconImpl&);
+    Icon(const Icon&);
+    ~Icon() { }
+
+    static Icon default_icon(const StringView&);
+
+    Icon& operator=(const Icon& other)
+    {
+        if (this != &other)
+            m_impl = other.m_impl;
+        return *this;
+    }
+
+    const Gfx::Bitmap* bitmap_for_size(int size) const { return m_impl->bitmap_for_size(size); }
+    void set_bitmap_for_size(int size, RefPtr<Gfx::Bitmap>&& bitmap) { m_impl->set_bitmap_for_size(size, move(bitmap)); }
+
+    const IconImpl& impl() const { return *m_impl; }
+
+    Vector<int> sizes() const { return m_impl->sizes(); }
+
+private:
+    NonnullRefPtr<IconImpl> m_impl;
+};
+
+}