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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/Orientation.h>
#include <LibGfx/Rect.h>
namespace GUI {
class Margins {
public:
Margins() = default;
Margins(int all)
: m_top(all)
, m_right(all)
, m_bottom(all)
, m_left(all)
{
}
Margins(int vertical, int horizontal)
: m_top(vertical)
, m_right(horizontal)
, m_bottom(vertical)
, m_left(horizontal)
{
}
Margins(int top, int horizontal, int bottom)
: m_top(top)
, m_right(horizontal)
, m_bottom(bottom)
, m_left(horizontal)
{
}
Margins(int top, int right, int bottom, int left)
: m_top(top)
, m_right(right)
, m_bottom(bottom)
, m_left(left)
{
}
~Margins() = default;
[[nodiscard]] Gfx::IntRect applied_to(Gfx::IntRect const& input) const
{
Gfx::IntRect output = input;
output.take_from_left(left());
output.take_from_top(top());
output.take_from_right(right());
output.take_from_bottom(bottom());
return output;
}
bool is_null() const { return !m_left && !m_top && !m_right && !m_bottom; }
int top() const { return m_top; }
int right() const { return m_right; }
int bottom() const { return m_bottom; }
int left() const { return m_left; }
void set_top(int value) { m_top = value; }
void set_right(int value) { m_right = value; }
void set_bottom(int value) { m_bottom = value; }
void set_left(int value) { m_left = value; }
bool operator==(Margins const& other) const
{
return m_left == other.m_left
&& m_top == other.m_top
&& m_right == other.m_right
&& m_bottom == other.m_bottom;
}
Margins operator+(Margins const& other) const
{
return Margins { top() + other.top(), right() + other.right(), bottom() + other.bottom(), left() + other.left() };
}
[[nodiscard]] int primary_total_for_orientation(Gfx::Orientation const orientation) const
{
if (orientation == Gfx::Orientation::Horizontal)
return m_left + m_right;
else
return m_top + m_bottom;
}
[[nodiscard]] int secondary_total_for_orientation(Gfx::Orientation const orientation) const
{
if (orientation == Gfx::Orientation::Vertical)
return m_left + m_right;
else
return m_top + m_bottom;
}
[[nodiscard]] int horizontal_total() const
{
return m_left + m_right;
}
[[nodiscard]] int vertical_total() const
{
return m_top + m_bottom;
}
private:
int m_top { 0 };
int m_right { 0 };
int m_bottom { 0 };
int m_left { 0 };
};
}
#define REGISTER_MARGINS_PROPERTY(property_name, getter, setter) \
register_property( \
property_name, [this]() { \
auto m = getter(); \
JsonObject margins_object; \
margins_object.set("left", m.left()); \
margins_object.set("right", m.right()); \
margins_object.set("top", m.top()); \
margins_object.set("bottom", m.bottom()); \
return margins_object; }, \
[this](auto& value) { \
if (!value.is_array()) \
return false; \
auto size = value.as_array().size(); \
if (size == 0 || size > 4) \
return false; \
int m[4]; \
for (size_t i = 0; i < size; ++i) \
m[i] = value.as_array().at(i).to_i32(); \
if (size == 1) \
setter({ m[0] }); \
else if (size == 2) \
setter({ m[0], m[1] }); \
else if (size == 3) \
setter({ m[0], m[1], m[2] }); \
else \
setter({ m[0], m[1], m[2], m[3] }); \
return true; \
});
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