Libraries: Move to Userland/Libraries/

Userland/Libraries/LibGfx/Size.h

@@ -0,0 +1,179 @@
+/*
+ * 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/Format.h>
+#include <LibGfx/Orientation.h>
+#include <LibIPC/Forward.h>
+
+namespace Gfx {
+
+template<typename T>
+class Size {
+public:
+    Size() { }
+
+    Size(T w, T h)
+        : m_width(w)
+        , m_height(h)
+    {
+    }
+
+    template<typename U>
+    Size(U width, U height)
+        : m_width(width)
+        , m_height(height)
+    {
+    }
+
+    template<typename U>
+    explicit Size(const Size<U>& other)
+        : m_width(other.width())
+        , m_height(other.height())
+    {
+    }
+
+    bool is_null() const { return !m_width && !m_height; }
+    bool is_empty() const { return m_width <= 0 || m_height <= 0; }
+
+    T width() const { return m_width; }
+    T height() const { return m_height; }
+
+    T area() const { return width() * height(); }
+
+    void set_width(T w) { m_width = w; }
+    void set_height(T h) { m_height = h; }
+
+    template<typename U>
+    bool contains(const Size<U>& other) const
+    {
+        return other.m_width <= m_width && other.m_height <= m_height;
+    }
+
+    bool operator==(const Size<T>& other) const
+    {
+        return m_width == other.m_width && m_height == other.m_height;
+    }
+
+    bool operator!=(const Size<T>& other) const
+    {
+        return !(*this == other);
+    }
+
+    Size<T>& operator-=(const Size<T>& other)
+    {
+        m_width -= other.m_width;
+        m_height -= other.m_height;
+        return *this;
+    }
+
+    Size<T>& operator+=(const Size<T>& other)
+    {
+        m_width += other.m_width;
+        m_height += other.m_height;
+        return *this;
+    }
+
+    Size<T> operator*(T factor) const { return { m_width * factor, m_height * factor }; }
+
+    Size<T>& operator*=(T factor)
+    {
+        m_width *= factor;
+        m_height *= factor;
+        return *this;
+    }
+
+    T primary_size_for_orientation(Orientation orientation) const
+    {
+        return orientation == Orientation::Vertical ? height() : width();
+    }
+
+    void set_primary_size_for_orientation(Orientation orientation, T value)
+    {
+        if (orientation == Orientation::Vertical) {
+            set_height(value);
+        } else {
+            set_width(value);
+        }
+    }
+
+    T secondary_size_for_orientation(Orientation orientation) const
+    {
+        return orientation == Orientation::Vertical ? width() : height();
+    }
+
+    void set_secondary_size_for_orientation(Orientation orientation, T value)
+    {
+        if (orientation == Orientation::Vertical) {
+            set_width(value);
+        } else {
+            set_height(value);
+        }
+    }
+
+    template<typename U>
+    Size<U> to_type() const
+    {
+        return Size<U>(*this);
+    }
+
+    String to_string() const;
+
+private:
+    T m_width { 0 };
+    T m_height { 0 };
+};
+
+template<typename T>
+const LogStream& operator<<(const LogStream& stream, const Gfx::Size<T>& size)
+{
+    return stream << size.to_string();
+}
+
+using IntSize = Size<int>;
+using FloatSize = Size<float>;
+
+}
+
+namespace AK {
+
+template<typename T>
+struct Formatter<Gfx::Size<T>> : Formatter<StringView> {
+    void format(FormatBuilder& builder, const Gfx::Size<T>& value)
+    {
+        Formatter<StringView>::format(builder, value.to_string());
+    }
+};
+
+}
+
+namespace IPC {
+
+bool encode(Encoder&, const Gfx::IntSize&);
+bool decode(Decoder&, Gfx::IntSize&);
+
+}