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https://github.com/RGBCube/serenity
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e11d177618
This allows for typing [8] instead of [8, 8, 8, 8] to specify the same margin on all edges, for example. The constructors follow CSS' style of specifying margins. The added constructors are: - Margins(int all): Sets the same margin on all edges. - Margins(int vertical, int horizontal): Sets the first argument to top and bottom margins, and the second argument to left and right margins. - Margins(int top, int vertical, int bottom): Sets the first argument to the top margin, the second argument to the left and right margins, and the third argument to the bottom margin.
101 lines
3.4 KiB
C++
101 lines
3.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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namespace GUI {
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class Margins {
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public:
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Margins() { }
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Margins(int all)
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: m_top(all)
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, m_right(all)
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, m_bottom(all)
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, m_left(all)
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{
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}
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Margins(int vertical, int horizontal)
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: m_top(vertical)
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, m_right(horizontal)
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, m_bottom(vertical)
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, m_left(horizontal)
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{
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}
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Margins(int top, int horizontal, int bottom)
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: m_top(top)
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, m_right(horizontal)
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, m_bottom(bottom)
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, m_left(horizontal)
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{
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}
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Margins(int top, int right, int bottom, int left)
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: m_top(top)
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, m_right(right)
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, m_bottom(bottom)
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, m_left(left)
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{
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}
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~Margins() { }
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bool is_null() const { return !m_left && !m_top && !m_right && !m_bottom; }
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int top() const { return m_top; }
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int right() const { return m_right; }
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int bottom() const { return m_bottom; }
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int left() const { return m_left; }
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void set_top(int value) { m_top = value; }
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void set_right(int value) { m_right = value; }
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void set_bottom(int value) { m_bottom = value; }
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void set_left(int value) { m_left = value; }
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bool operator==(const Margins& other) const
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{
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return m_left == other.m_left
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&& m_top == other.m_top
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&& m_right == other.m_right
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&& m_bottom == other.m_bottom;
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}
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private:
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int m_top { 0 };
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int m_right { 0 };
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int m_bottom { 0 };
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int m_left { 0 };
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};
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}
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#define REGISTER_MARGINS_PROPERTY(property_name, getter, setter) \
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register_property( \
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property_name, [this]() { \
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auto m = getter(); \
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JsonObject margins_object; \
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margins_object.set("left", m.left()); \
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margins_object.set("right", m.right()); \
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margins_object.set("top", m.top()); \
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margins_object.set("bottom", m.bottom()); \
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return margins_object; }, \
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[this](auto& value) { \
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if (!value.is_array()) \
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return false; \
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auto size = value.as_array().size(); \
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if (size == 0 || size > 4) \
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return false; \
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int m[4]; \
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for (size_t i = 0; i < size; ++i) \
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m[i] = value.as_array().at(i).to_i32(); \
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if (size == 1) \
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setter({ m[0] }); \
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else if (size == 2) \
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setter({ m[0], m[1] }); \
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else if (size == 3) \
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setter({ m[0], m[1], m[2] }); \
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else \
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setter({ m[0], m[1], m[2], m[3] }); \
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return true; \
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});
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