66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
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/*
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This file is part of NSEssentials.
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Use of this source code is granted via a BSD-style license, which can be found
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in License.txt in the repository root.
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@author Nico Schertler
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*/
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#pragma once
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#include <nanogui/screen.h>
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#include "gui/Camera.h"
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#include <chrono>
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namespace nse {
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namespace gui
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{
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//This base class provides basic functionality for 3D interaction.
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class AbstractViewer : public nanogui::Screen
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{
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public:
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AbstractViewer(const std::string& title, int width = 1280, int height = 800, int nSamples = 4);
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bool scrollEvent(const Eigen::Vector2i & p, const Eigen::Vector2f & rel);
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bool mouseButtonEvent(const Eigen::Vector2i & p, int button, bool down, int modifiers);
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bool mouseMotionEvent(const Eigen::Vector2i & p, const Eigen::Vector2i & rel, int button, int modifiers);
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virtual bool keyboardEvent(int key, int scancode, int action, int mods);
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virtual bool resizeEvent(const Eigen::Vector2i&);
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const Camera& camera() const { return _camera; }
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Camera& camera() { return _camera; }
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bool ctrlDown() const { return _ctrlDown; }
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bool shiftDown() const { return _shiftDown; }
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//returns depth buffer value
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float get3DPosition(const Eigen::Vector2i& screenPos, Eigen::Vector4f& pos);
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float get3DPosition(const Eigen::Vector2i& screenPos, Eigen::Vector3f& pos);
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protected:
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nanogui::Window* SetupMainWindow();
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void CheckOpenGLSupport();
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const int nSamples;
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Camera _camera;
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bool _ctrlDown;
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bool _shiftDown;
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std::chrono::high_resolution_clock::time_point lastClickTime;
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int lastClickButton;
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Eigen::Vector2i lastClickPosition;
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virtual bool scrollHook(const Eigen::Vector2i & p, const Eigen::Vector2f & rel) { return false; }
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virtual bool mouseButtonHook(const Eigen::Vector2i & p, int button, bool down, int modifiers) { return false; }
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virtual bool mouseMotionHook(const Eigen::Vector2i & p, const Eigen::Vector2i & rel, int button, int modifiers) { return false; }
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};
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}
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}
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