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45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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struct ImGuiContext;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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namespace ImGui
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{
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////////////////////////////////////////////////////////////////////////////////////////////////
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//! Utility class to set a new current ImGui context on construction,
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//! then reset the previous ImGui context on destruction.
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class ImGuiContextScope
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{
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public:
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////////////////////////////////////////////////////////////////////////////////////////////
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explicit ImGuiContextScope([[maybe_unused]] ImGuiContext* newContext)
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: m_previousContext(nullptr)
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{
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#if defined(IMGUI_ENABLED)
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m_previousContext = ImGui::GetCurrentContext();
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ImGui::SetCurrentContext(newContext);
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////////////////
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~ImGuiContextScope()
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{
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#if defined(IMGUI_ENABLED)
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ImGui::SetCurrentContext(m_previousContext);
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#endif
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}
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private:
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////////////////////////////////////////////////////////////////////////////////////////////
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[[maybe_unused]] ImGuiContext* m_previousContext = nullptr;
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};
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}
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