79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
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/**
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* @file touch.h
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* @copyright 2003-2023 projectM Team
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* @brief Touch-related functions to add random waveforms.
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*
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* projectM -- Milkdrop-esque visualisation SDK
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* Copyright (C)2003-2023 projectM Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* See 'LICENSE.txt' included within this release
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*
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*/
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#pragma once
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#include "projectM-4/types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Starts a touch event or moves an existing waveform.
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*
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* This will add or move waveforms in addition to the preset waveforms. If there is an existing waveform
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* at the given coordinates, it will be centered on the new coordinates. If there is no waveform, a new one
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* will be added.
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*
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* @param instance The projectM instance handle.
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* @param x The x coordinate of the touch event.
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* @param y The y coordinate of the touch event.
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* @param pressure The amount of pressure applied in a range from 0.0 to 1.0.
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* @param touch_type The waveform type that will be rendered on touch.
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*/
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PROJECTM_EXPORT void projectm_touch(projectm_handle instance, float x, float y,
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int pressure, projectm_touch_type touch_type);
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/**
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* @brief Centers any waveforms under the coordinates to simulate dragging.
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* @param instance The projectM instance handle.
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* @param x The x coordinate of the drag.
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* @param y the y coordinate of the drag.
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* @param pressure The amount of pressure applied in a range from 0.0 to 1.0.
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*/
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PROJECTM_EXPORT void projectm_touch_drag(projectm_handle instance, float x, float y, int pressure);
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/**
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* @brief Removes any additional touch waveforms under the given coordinates.
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* @param instance The projectM instance handle.
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* @param x The last known x touch coordinate.
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* @param y The last known y touch coordinate.
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*/
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PROJECTM_EXPORT void projectm_touch_destroy(projectm_handle instance, float x, float y);
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/**
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* @brief Removes all touch waveforms from the screen.
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*
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* Preset-defined waveforms will still be displayed.
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*
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* @param instance The projectM instance handle.
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*/
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PROJECTM_EXPORT void projectm_touch_destroy_all(projectm_handle instance);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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