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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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ImGuiContext* m_previousContext = nullptr;
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};
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}
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