67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
// ----------------------------------------------------------------------------
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// - Open3D: www.open3d.org -
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// ----------------------------------------------------------------------------
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// Copyright (c) 2018-2023 www.open3d.org
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// SPDX-License-Identifier: MIT
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// ----------------------------------------------------------------------------
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#pragma once
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#include <map>
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#include "open3d/visualization/visualizer/Visualizer.h"
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namespace open3d {
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namespace visualization {
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/// \class VisualizerWithKeyCallback
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///
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/// \brief Visualizer with custom key callback capabilities.
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class VisualizerWithKeyCallback : public Visualizer {
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public:
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typedef std::pair<int, std::function<bool(Visualizer *)>> KeyCallbackPair;
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public:
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/// \brief Default Constructor.
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VisualizerWithKeyCallback();
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~VisualizerWithKeyCallback() override;
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VisualizerWithKeyCallback(const VisualizerWithKeyCallback &) = delete;
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VisualizerWithKeyCallback &operator=(const VisualizerWithKeyCallback &) =
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delete;
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public:
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void PrintVisualizerHelp() override;
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void RegisterKeyCallback(int key,
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std::function<bool(Visualizer *)> callback);
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/// Register callback function with access to GLFW key actions.
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///
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/// \param key GLFW key value, see [GLFW key
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/// values](https://www.glfw.org/docs/latest/group__keys.html).
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///
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/// \param callback The callback function. The callback function takes
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/// `Visualizer *`, `action` and `mods` as input and returns a boolean
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/// indicating UpdateGeometry() needs to be run. The `action` can be one of
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/// GLFW_RELEASE (0), GLFW_PRESS (1) or GLFW_REPEAT (2), see [GLFW input
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/// interface](https://www.glfw.org/docs/latest/group__input.html). The
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/// `mods` specifies the modifier key, see [GLFW modifier
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/// key](https://www.glfw.org/docs/latest/group__mods.html).
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void RegisterKeyActionCallback(
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int key, std::function<bool(Visualizer *, int, int)> callback);
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protected:
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void KeyPressCallback(GLFWwindow *window,
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int key,
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int scancode,
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int action,
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int mods) override;
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std::string PrintKeyToString(int key);
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protected:
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std::map<int, std::function<bool(Visualizer *)>> key_to_callback_;
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std::map<int, std::function<bool(Visualizer *, int, int)>>
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key_action_to_callback_;
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};
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} // namespace visualization
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} // namespace open3d
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