ladybird/Libraries/LibGfx/TextAlignment.h

92 lines
2.9 KiB
C++

/*
* 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/Optional.h>
#include <AK/StringView.h>
namespace Gfx {
#define GFX_ENUMERATE_TEXT_ALIGNMENTS(M) \
M(TopLeft) \
M(CenterLeft) \
M(Center) \
M(CenterRight) \
M(TopRight) \
M(BottomRight)
enum class TextAlignment {
#define __ENUMERATE(x) x,
GFX_ENUMERATE_TEXT_ALIGNMENTS(__ENUMERATE)
#undef __ENUMERATE
};
inline bool is_right_text_alignment(TextAlignment alignment)
{
switch (alignment) {
case TextAlignment::CenterRight:
case TextAlignment::TopRight:
case TextAlignment::BottomRight:
return true;
default:
return false;
}
}
inline bool is_vertically_centered_text_alignment(TextAlignment alignment)
{
switch (alignment) {
case TextAlignment::CenterLeft:
case TextAlignment::CenterRight:
case TextAlignment::Center:
return true;
default:
return false;
}
}
inline Optional<TextAlignment> text_alignment_from_string(const StringView& string)
{
#define __ENUMERATE(x) \
if (string == #x) \
return TextAlignment::x;
GFX_ENUMERATE_TEXT_ALIGNMENTS(__ENUMERATE)
#undef __ENUMERATE
return {};
}
inline const char* to_string(TextAlignment text_alignment)
{
#define __ENUMERATE(x) \
if (text_alignment == TextAlignment::x) \
return #x;
GFX_ENUMERATE_TEXT_ALIGNMENTS(__ENUMERATE)
#undef __ENUMERATE
return {};
}
}