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LibGfx+Everywhere: Make DisjointRectSet work for non-int Rects

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For convenience, `DisjointIntRectSet` is an alias for
`DisjointRectSet<int>`, and is used everywhere for now.
This commit is contained in:
Sam Atkins 2022-10-26 15:04:16 +01:00 • committed by Andreas Kling
parent f52413a70e
commit ff0a2b1a60
13 changed files with 67 additions and 59 deletions
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34
Userland/Libraries/LibGfx/DisjointRectSet.h
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -12,6 +13,7 @@
namespace Gfx {
template<typename T>
class DisjointRectSet {
public:
DisjointRectSet(DisjointRectSet const&) = delete;
@ -20,7 +22,7 @@ public:
DisjointRectSet() = default;
~DisjointRectSet() = default;
DisjointRectSet(IntRect const& rect)
DisjointRectSet(Rect<T> const& rect)
{
m_rects.append(rect);
}
@ -35,17 +37,17 @@ public:
return rects;
}
void move_by(int dx, int dy)
void move_by(T dx, T dy)
{
for (auto& r : m_rects)
r.translate_by(dx, dy);
}
void move_by(IntPoint const& delta)
void move_by(Point<T> const& delta)
{
move_by(delta.x(), delta.y());
}
void add(IntRect const& rect)
void add(Rect<T> const& rect)
{
if (add_no_shatter(rect) && m_rects.size() > 1)
shatter();
@ -74,7 +76,7 @@ public:
}
}
DisjointRectSet shatter(IntRect const& hammer) const
DisjointRectSet shatter(Rect<T> const& hammer) const
{
if (hammer.is_empty())
return clone();
@ -107,7 +109,7 @@ public:
return shards;
}
bool contains(IntRect const& rect) const
bool contains(Rect<T> const& rect) const
{
if (is_empty() || rect.is_empty())
return false;
@ -123,7 +125,7 @@ public:
return false;
}
bool intersects(IntRect const& rect) const
bool intersects(Rect<T> const& rect) const
{
for (auto& r : m_rects) {
if (r.intersects(rect))
@ -145,7 +147,7 @@ public:
return false;
}
DisjointRectSet intersected(IntRect const& rect) const
DisjointRectSet intersected(Rect<T> const& rect) const
{
DisjointRectSet intersected_rects;
intersected_rects.m_rects.ensure_capacity(m_rects.capacity());
@ -178,7 +180,7 @@ public:
}
template<typename Function>
IterationDecision for_each_intersected(IntRect const& rect, Function f) const
IterationDecision for_each_intersected(Rect<T> const& rect, Function f) const
{
if (is_empty() || rect.is_empty())
return IterationDecision::Continue;
@ -224,22 +226,22 @@ public:
void clear() { m_rects.clear(); }
void clear_with_capacity() { m_rects.clear_with_capacity(); }
Vector<IntRect, 32> const& rects() const { return m_rects; }
Vector<IntRect, 32> take_rects() { return move(m_rects); }
Vector<Rect<T>, 32> const& rects() const { return m_rects; }
Vector<Rect<T>, 32> take_rects() { return move(m_rects); }
void translate_by(int dx, int dy)
void translate_by(T dx, T dy)
{
for (auto& rect : m_rects)
rect.translate_by(dx, dy);
}
void translate_by(Gfx::IntPoint const& delta)
void translate_by(Point<T> const& delta)
{
for (auto& rect : m_rects)
rect.translate_by(delta);
}
private:
bool add_no_shatter(IntRect const& new_rect)
bool add_no_shatter(Rect<T> const& new_rect)
{
if (new_rect.is_empty())
return false;
@ -254,7 +256,7 @@ private:
void shatter()
{
Vector<IntRect, 32> output;
Vector<Rect<T>, 32> output;
output.ensure_capacity(m_rects.size());
bool pass_had_intersections = false;
do {
@ -284,7 +286,7 @@ private:
} while (pass_had_intersections);
}
Vector<IntRect, 32> m_rects;
Vector<Rect<T>, 32> m_rects;
};
}