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103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
#include "Rect.h"
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#include <AK/StdLibExtras.h>
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void Rect::intersect(const Rect& other)
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{
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int l = max(left(), other.left());
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int r = min(right(), other.right());
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int t = max(top(), other.top());
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int b = min(bottom(), other.bottom());
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if (l > r || t > b) {
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m_location = {};
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m_size = {};
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return;
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}
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m_location.set_x(l);
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m_location.set_y(t);
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m_size.set_width((r - l) + 1);
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m_size.set_height((b - t) + 1);
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}
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Rect Rect::united(const Rect& other) const
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{
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if (is_null())
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return other;
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if (other.is_null())
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return *this;
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Rect rect;
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rect.set_left(min(left(), other.left()));
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rect.set_top(min(top(), other.top()));
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rect.set_right(max(right(), other.right()));
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rect.set_bottom(max(bottom(), other.bottom()));
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return rect;
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}
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Vector<Rect, 4> Rect::shatter(const Rect& hammer) const
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{
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Vector<Rect, 4> pieces;
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if (!intersects(hammer)) {
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pieces.unchecked_append(*this);
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return pieces;
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}
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Rect top_shard {
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x(),
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y(),
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width(),
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hammer.y() - y()
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};
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Rect bottom_shard {
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x(),
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hammer.y() + hammer.height(),
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width(),
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(y() + height()) - (hammer.y() + hammer.height())
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};
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Rect left_shard {
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x(),
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max(hammer.y(), y()),
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hammer.x() - x(),
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min((hammer.y() + hammer.height()), (y() + height())) - max(hammer.y(), y())
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};
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Rect right_shard {
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hammer.x() + hammer.width(),
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max(hammer.y(), y()),
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right() - hammer.right(),
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min((hammer.y() + hammer.height()), (y() + height())) - max(hammer.y(), y())
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};
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if (intersects(top_shard))
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pieces.unchecked_append(top_shard);
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if (intersects(bottom_shard))
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pieces.unchecked_append(bottom_shard);
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if (intersects(left_shard))
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pieces.unchecked_append(left_shard);
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if (intersects(right_shard))
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pieces.unchecked_append(right_shard);
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return pieces;
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}
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void Rect::align_within(const Rect& other, TextAlignment alignment)
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{
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switch (alignment) {
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case TextAlignment::Center:
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center_within(other);
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return;
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case TextAlignment::TopLeft:
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set_location(other.location());
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return;
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case TextAlignment::TopRight:
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set_x(other.x() + other.width() - width());
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set_y(other.y());
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return;
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case TextAlignment::CenterLeft:
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set_x(other.x());
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center_vertically_within(other);
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return;
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case TextAlignment::CenterRight:
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set_x(other.x() + other.width() - width());
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center_vertically_within(other);
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return;
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}
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}
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