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857a767ab4
This fixes a crash where if you switched to a theme that has hover icons for title buttons, then back to a theme that does not. Then when you next hover over the title buttons the window server would crash. This was due to the hover_bitmap multi-scale bitmap pointer being non-null, but not containing any bitmaps, so hitting an assertion when painting.
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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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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#include <AK/HashMap.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <LibGfx/Bitmap.h>
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namespace WindowServer {
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class MultiScaleBitmaps : public RefCounted<MultiScaleBitmaps> {
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public:
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static RefPtr<MultiScaleBitmaps> create_empty();
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static RefPtr<MultiScaleBitmaps> create(StringView filename, StringView default_filename = {});
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Gfx::Bitmap const& default_bitmap() const { return bitmap(1); }
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Gfx::Bitmap const& bitmap(int scale_factor) const;
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Gfx::Bitmap const* find_bitmap(int scale_factor) const;
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Gfx::BitmapFormat format() const { return m_format; }
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bool load(StringView filename, StringView default_filename = {});
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void add_bitmap(int scale_factor, NonnullRefPtr<Gfx::Bitmap>&&);
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bool is_empty() const { return m_bitmaps.is_empty(); }
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private:
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MultiScaleBitmaps() = default;
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HashMap<int, NonnullRefPtr<Gfx::Bitmap>> m_bitmaps;
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Gfx::BitmapFormat m_format { Gfx::BitmapFormat::Invalid };
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};
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}
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