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207 lines
7.1 KiB
C
207 lines
7.1 KiB
C
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
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//
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// This software is provided 'as-is', without any express or implied warranty.
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it freely,
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// subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented;
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// you must not claim that you wrote the original software.
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// If you use this software in a product, an acknowledgment
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// in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such,
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// and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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//
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////////////////////////////////////////////////////////////
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#ifndef SFML_VIEW_H
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#define SFML_VIEW_H
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Graphics/Export.h>
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#include <SFML/Graphics/Rect.h>
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#include <SFML/Graphics/Types.h>
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#include <SFML/System/Vector2.h>
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////////////////////////////////////////////////////////////
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/// \brief Create a default view
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///
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/// This function creates a default view of (0, 0, 1000, 1000)
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///
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/// \return A new sfView object
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfView* sfView_create(void);
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/// \brief Construct a view from a rectangle
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///
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/// \param rectangle Rectangle defining the zone to display
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///
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/// \return A new sfView object
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfView* sfView_createFromRect(sfFloatRect rectangle);
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/// \brief Copy an existing view
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///
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/// \param view View to copy
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///
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/// \return Copied object
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfView* sfView_copy(const sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Destroy an existing view
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///
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/// \param view View to destroy
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_destroy(sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Set the center of a view
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///
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/// \param view View object
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/// \param center New center
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_setCenter(sfView* view, sfVector2f center);
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////////////////////////////////////////////////////////////
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/// \brief Set the size of a view
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///
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/// \param view View object
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/// \param size New size of the view
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_setSize(sfView* view, sfVector2f size);
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////////////////////////////////////////////////////////////
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/// \brief Set the orientation of a view
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///
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/// The default rotation of a view is 0 degree.
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///
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/// \param view View object
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/// \param angle New angle, in degrees
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_setRotation(sfView* view, float angle);
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////////////////////////////////////////////////////////////
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/// \brief Set the target viewport of a view
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///
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/// The viewport is the rectangle into which the contents of the
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/// view are displayed, expressed as a factor (between 0 and 1)
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/// of the size of the render target to which the view is applied.
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/// For example, a view which takes the left side of the target would
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/// be defined by a rect of (0, 0, 0.5, 1).
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/// By default, a view has a viewport which covers the entire target.
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///
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/// \param view View object
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/// \param viewport New viewport rectangle
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_setViewport(sfView* view, sfFloatRect viewport);
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////////////////////////////////////////////////////////////
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/// \brief Reset a view to the given rectangle
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///
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/// Note that this function resets the rotation angle to 0.
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///
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/// \param view View object
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/// \param rectangle Rectangle defining the zone to display
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_reset(sfView* view, sfFloatRect rectangle);
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////////////////////////////////////////////////////////////
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/// \brief Get the center of a view
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///
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/// \param view View object
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///
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/// \return Center of the view
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfVector2f sfView_getCenter(const sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Get the size of a view
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///
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/// \param view View object
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///
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/// \return Size of the view
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfVector2f sfView_getSize(const sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Get the current orientation of a view
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///
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/// \param view View object
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///
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/// \return Rotation angle of the view, in degrees
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API float sfView_getRotation(const sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Get the target viewport rectangle of a view
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///
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/// \param view View object
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///
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/// \return Viewport rectangle, expressed as a factor of the target size
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API sfFloatRect sfView_getViewport(const sfView* view);
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////////////////////////////////////////////////////////////
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/// \brief Move a view relatively to its current position
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///
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/// \param view View object
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/// \param offset Offset
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_move(sfView* view, sfVector2f offset);
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////////////////////////////////////////////////////////////
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/// \brief Rotate a view relatively to its current orientation
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///
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/// \param view View object
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/// \param angle Angle to rotate, in degrees
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_rotate(sfView* view, float angle);
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////////////////////////////////////////////////////////////
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/// \brief Resize a view rectangle relatively to its current size
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///
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/// Resizing the view simulates a zoom, as the zone displayed on
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/// screen grows or shrinks.
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/// \a factor is a multiplier:
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/// \li 1 keeps the size unchanged
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/// \li > 1 makes the view bigger (objects appear smaller)
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/// \li < 1 makes the view smaller (objects appear bigger)
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///
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/// \param view View object
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/// \param factor Zoom factor to apply
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///
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////////////////////////////////////////////////////////////
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CSFML_GRAPHICS_API void sfView_zoom(sfView* view, float factor);
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#endif // SFML_VIEW_H
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