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o3de/Gems/ImGui/Code/Include/LYImGuiUtils/HistogramGroup.h

57 lines
1.9 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#ifdef IMGUI_ENABLED
#include <AzCore/Math/Color.h>
#include <AzCore/std/containers/vector.h>
#include <AzCore/std/containers/unordered_map.h>
#include <imgui/imgui.h>
#include <LYImGuiUtils/HistogramContainer.h>
namespace ImGui::LYImGuiUtils
{
//! Helper for a group containing several histograms.
//! The group is shown using collapsible header.
class HistogramGroup
{
public:
HistogramGroup() = default;
HistogramGroup(const char* name, int histogramBinCount);
void OnImGuiUpdate();
void PushHistogramValue(const char* valueName, float value, const AZ::Color& color);
const char* GetName() const { return m_name.c_str(); }
const AZStd::string& GetNameString() const { return m_name; }
void SetName(AZStd::string name) { m_name = name; }
void SetHistogramBinCount(int count) { m_histogramBinCount = count; }
ImGui::LYImGuiUtils::HistogramContainer* FindContainerByName(const char* name);
//! Needs to be public for l-value access for ImGui::MenuItem()
bool m_show = true;
private:
AZStd::string m_name; //< The name shown in the collapsible header.
int m_histogramBinCount = 100; //< The number of bins in the histogram.
using HistogramIndexByNames = AZStd::unordered_map<const char*, size_t>;
HistogramIndexByNames m_histogramIndexByName; //< Look-up table for the histogram index by name.
AZStd::vector<ImGui::LYImGuiUtils::HistogramContainer> m_histograms; //< Owns the histogram containers.
static constexpr float s_histogramHeight = 85.0f;
};
} // namespace ImGui::LYImGuiUtils
#endif // IMGUI_ENABLED