mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#pragma once
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#if defined( _MSC_VER )
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# pragma warning( push )
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# pragma warning( disable : 4127 ) // conditional expression is constant (glm)
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#elif defined( __clang__ )
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// no need to ignore any warnings with clang
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#elif defined( __GNUC__ )
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# if ( 10 <= __GNUC__ ) && ( 201703L < __cplusplus )
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wvolatile"
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# endif
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#endif
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#include <glm/glm.hpp>
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#if defined( _MSC_VER )
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# pragma warning( pop )
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#elif defined( __clang__ )
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// no need to ignore any warnings with clang
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#elif defined( __GNUC__ )
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# if ( 10 <= __GNUC__ ) && ( 201703L < __cplusplus )
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# pragma GCC diagnostic pop
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# endif
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#endif
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#include <vulkan/vulkan.hpp>
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namespace vk
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{
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namespace su
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{
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class CameraManipulator
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{
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public:
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enum class Action
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{
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None,
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Orbit,
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Dolly,
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Pan,
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LookAround
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};
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enum class Mode
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{
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Examine,
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Fly,
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Walk,
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Trackball
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};
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enum class MouseButton
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{
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None,
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Left,
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Middle,
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Right
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};
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enum class ModifierFlagBits : uint32_t
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{
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Shift = 1,
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Ctrl = 2,
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Alt = 4
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};
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using ModifierFlags = vk::Flags<ModifierFlagBits>;
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public:
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CameraManipulator();
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glm::vec3 const & getCameraPosition() const;
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glm::vec3 const & getCenterPosition() const;
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glm::mat4 const & getMatrix() const;
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Mode getMode() const;
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glm::ivec2 const & getMousePosition() const;
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float getRoll() const;
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float getSpeed() const;
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glm::vec3 const & getUpVector() const;
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glm::u32vec2 const & getWindowSize() const;
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Action mouseMove( glm::ivec2 const & position, MouseButton mouseButton, ModifierFlags & modifiers );
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void setLookat( const glm::vec3 & cameraPosition, const glm::vec3 & centerPosition, const glm::vec3 & upVector );
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void setMode( Mode mode );
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void setMousePosition( glm::ivec2 const & position );
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void setRoll( float roll ); // roll in radians
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void setSpeed( float speed );
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void setWindowSize( glm::ivec2 const & size );
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void wheel( int value );
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private:
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void dolly( glm::vec2 const & delta );
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void motion( glm::ivec2 const & position, Action action = Action::None );
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void orbit( glm::vec2 const & delta, bool invert = false );
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void pan( glm::vec2 const & delta );
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double projectOntoTBSphere( const glm::vec2 & p );
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void trackball( glm::ivec2 const & position );
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void update();
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private:
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glm::vec3 m_cameraPosition = glm::vec3( 10, 10, 10 );
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glm::vec3 m_centerPosition = glm::vec3( 0, 0, 0 );
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glm::vec3 m_upVector = glm::vec3( 0, 1, 0 );
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float m_roll = 0; // Rotation around the Z axis in RAD
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glm::mat4 m_matrix = glm::mat4( 1 );
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glm::u32vec2 m_windowSize = glm::u32vec2( 1, 1 );
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float m_speed = 30.0f;
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glm::ivec2 m_mousePosition = glm::ivec2( 0, 0 );
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Mode m_mode = Mode::Examine;
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};
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} // namespace su
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} // namespace vk
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