214 lines
7.1 KiB
C++
214 lines
7.1 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/include/cbitmap.hxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in all NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CBITMAP_HXX
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#define __INCLUDE_CBITMAP_HXX
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/nx/nxglib.h>
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#include "nxconfig.hxx"
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#include "ibitmap.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Implementation Classes
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****************************************************************************/
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#if defined(__cplusplus)
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namespace NXWidgets
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{
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/**
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* Bitmap Structure
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*/
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struct SBitmap
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{
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uint8_t bpp; /**< Bits per pixel */
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uint8_t fmt; /**< Color format */
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nxgl_coord_t width; /**< Width in pixels */
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nxgl_coord_t height; /**< Height in rows */
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uint16_t stride; /**< Width in bytes */
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FAR const void *data; /**< Pointer to the beginning of pixel data */
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};
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/**
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* Class providing bitmap accessor for a bitmap represented by SBitmap.
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*/
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class CBitmap : public IBitmap
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{
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protected:
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const struct SBitmap *m_bitmap; /**< The bitmap that is being managed */
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/**
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* Copy constructor is protected to prevent usage.
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*/
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inline CBitmap(const CBitmap &bitmap) { }
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public:
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/**
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* Constructor.
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*
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* @param bitmap The bitmap structure being wrapped.
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*/
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CBitmap(const struct SBitmap *bitmap);
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/**
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* Destructor.
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*/
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inline ~CBitmap(void) {}
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/**
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* Get the bitmap's color format.
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*
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* @return The bitmap's width.
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*/
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const uint8_t getColorFormat(void) const;
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/**
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* Get the bitmap's color format.
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*
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* @return The bitmap's color format.
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*/
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const uint8_t getBitsPerPixel(void) const;
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/**
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* Get the bitmap's width (in pixels/columns).
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*
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* @return The bitmap's pixel depth.
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*/
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const nxgl_coord_t getWidth(void) const;
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/**
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* Get the bitmap's height (in rows).
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*
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* @return The bitmap's height.
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*/
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const nxgl_coord_t getHeight(void) const;
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/**
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* Get the bitmap's width (in bytes).
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*
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* @return The bitmap's width.
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*/
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const size_t getStride(void) const;
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/**
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* Use the colors associated with a selected image.
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*
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* @param selected. true: Use colors for a selected widget,
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* false: Use normal (default) colors.
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*/
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inline void setSelected(bool selected) {}
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/**
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* Get one row from the bit map image.
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*
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* @param x The offset into the row to get
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* @param y The row number to get
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* @param width The number of pixels to get from the row
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* @param data The memory location provided by the caller
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* in which to return the data. This should be at least
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* (getWidth()*getBitsPerPixl() + 7)/8 bytes in length
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* and properly aligned for the pixel color format.
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* @param True if the run was returned successfully.
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*/
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bool getRun(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width,
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FAR void *data);
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};
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}
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#endif // __cplusplus
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#endif // __INCLUDE_CBITMAP_HXX
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