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nuttx-apps/include/graphics/nxwidgets/cgraphicsport.hxx

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/****************************************************************************
* apps/include/graphics/nxwidgets/cgraphicsport.hxx
*
* Copyright (C) 2012, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
* me be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************
*
* Portions of this package derive from Woopsi (http://woopsi.org/) and
* portions are original efforts. It is difficult to determine at this
* point what parts are original efforts and which parts derive from Woopsi.
* However, in any event, the work of Antony Dzeryn will be acknowledged
* in all NxWidget files. Thanks Antony!
*
* Copyright (c) 2007-2011, Antony Dzeryn
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the names "Woopsi", "Simian Zombie" nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CGRAPHICSPORT_HXX
#define __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CGRAPHICSPORT_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include "graphics/nxwidgets/nxconfig.hxx"
#include "graphics/nxwidgets/inxwindow.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Implementation Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NXWidgets
{
class CNxFont;
class CNxString;
class CRect;
struct SBitmap;
/**
* CGraphicsPort is the interface between a NXwidget and NX layer.
*/
class CGraphicsPort
{
private:
INxWindow *m_pNxWnd; /**< NX window interface. */
#ifdef CONFIG_NX_WRITEONLY
nxgl_mxpixel_t m_backColor; /**< The background color to use */
#endif
/**
* The underlying implementation for drawText functions
* @param pos The window-relative x/y coordinate of the string.
* @param bound The window-relative bounds of the string.
* @param font The font to draw with.
* @param string The string to output.
* @param startIndex The start index within the string from which
* drawing will commence.
* @param length The number of characters to draw.
* @param background Color to use for background if transparent is false.
* @param transparent Whether to fill the background.
*/
void _drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font,
const CNxString &string, int startIndex, int length,
nxgl_mxpixel_t background, bool transparent);
public:
/**
* Constructor.
*
* @param pNxWnd. An instance of the underlying window type.
* @param backColor. The background color is only needed if we
* cannot read from the graphics device.
*/
#ifdef CONFIG_NX_WRITEONLY
CGraphicsPort(INxWindow *pNxWnd,
nxgl_mxpixel_t backColor = CONFIG_NXWIDGETS_DEFAULT_BACKGROUNDCOLOR);
#else
CGraphicsPort(INxWindow *pNxWnd);
#endif
/**
* Destructor.
*/
virtual ~CGraphicsPort();
/**
* Return the absolute x coordinate of the upper left hand corner of the
* underlying window.
*
* @return The x coordinate of the window.
*/
const nxgl_coord_t getX(void) const;
/**
* Return the absolute y coordinate of the upper left hand corner of the
* underlying window.
*
* @return The y coordinate of the window.
*/
const nxgl_coord_t getY(void) const;
/**
* Get the background color that will be used to fill in the spaces
* when rendering fonts. This background color is ONLY used if the
* LCD device does not support reading GRAM contents.
*
* @return. The current background color being used.
*/
#ifdef CONFIG_NX_WRITEONLY
nxgl_mxpixel_t getBackColor(void) const
{
return m_backColor;
}
#endif
/**
* Set the background color that will be used to fill in the spaces
* when rendering fonts. This background color is ONLY used if the
* LCD device does not support reading GRAM contents.
*
* @return. The current background color being used.
*/
#ifdef CONFIG_NX_WRITEONLY
void setBackColor(nxgl_mxpixel_t backColor)
{
m_backColor = backColor;
}
#endif
/**
* Draw a pixel into the window.
*
* @param x The window-relative x coordinate of the pixel.
* @param y The window-relative y coordinate of the pixel.
* @param color The color of the pixel.
*/
void drawPixel(nxgl_coord_t x, nxgl_coord_t y, nxgl_mxpixel_t color);
/**
* Draw a horizontal line of the specified start position, width, and
* color.
*
* @param x The x coordinate of the line.
* @param y The y coordinate of the top-most end of the line.
* @param width The width of the line in pixels.
* @param color The color of the line.
*/
void drawHorizLine(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width,
nxgl_mxpixel_t color);
/**
* Draw a vertical line of the specified start position, width, and
* color.
*
* @param x The x coordinate of the left-most end of the line.
* @param y The y coordinate of the line.
* @param height The height of the line in rows.
* @param color The color of the line.
*/
void drawVertLine(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t height,
nxgl_mxpixel_t color);
/**
* Draw a line of a fixed color in the window.
*
* @param x1 The x coordinate of the start point of the line.
* @param y1 The y coordinate of the start point of the line.
* @param x2 The x coordinate of the end point of the line.
* @param y2 The y coordinate of the end point of the line.
* @param color The color of the line.
* @param caps Draw a circular cap on the ends of the line to support
* better line joins
*/
void drawLine(nxgl_coord_t x1, nxgl_coord_t y1,
nxgl_coord_t x2, nxgl_coord_t y2,
nxgl_mxpixel_t color, enum INxWindow::ELineCaps caps);
/**
* Draw a filled rectangle of the specified start position, end position,
* width, and color.
*
* @param x The window-relative x coordinate of the rectangle.
* @param y The window-relative y coordinate of the rectangle.
* @param width The width of the rectangle in pixels.
* @param height The height of the rectangle in rows.
* @param color The color of the rectangle.
*/
void drawFilledRect(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width,
nxgl_coord_t height, nxgl_mxpixel_t color);
/**
* Draw an unfilled rectangle to the window
*
* @param x The window-relative x coordinate of the rectangle.
* @param y The window-relative y coordinate of the rectangle.
* @param width The width of the rectangle.
* @param height The height of the rectangle.
* @param color The color of the rectangle .
*/
void drawRect(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width,
nxgl_coord_t height, nxgl_mxpixel_t color);
/**
* Draw a bevelled rectangle to the window.
*
* @param x The x coordinate of the rectangle.
* @param y The y coordinate of the rectangle.
* @param width The width of the rectangle.
* @param height The height of the rectangle.
* @param shineColor The color of the top/left sides.
* @param shadowColor The color of the bottom/right sides.
*/
void drawBevelledRect(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
nxgl_mxpixel_t shineColor,
nxgl_mxpixel_t shadowColor);
/**
* Draw a filled circle at the specified position, size, and color.
*
* @param center The window-relative coordinates of the circle center.
* @param radius The radius of the rectangle in pixels.
* @param color The color of the rectangle.
*/
inline void drawFilledCircle(struct nxgl_point_s *center, nxgl_coord_t radius,
nxgl_mxpixel_t color)
{
m_pNxWnd->drawFilledCircle(center, radius, color);
}
/**
* Draw a string to the window.
* @param pos The window-relative x/y coordinate of the string.
* @param bound The window-relative bounds of the string.
* @param font The font to draw with.
* @param string The string to output.
*/
void drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font,
const CNxString &string);
/**
* Draw a particular length of a string to the window in a specific color.
* @param pos The window-relative x/y coordinate of the string.
* @param bound The window-relative bounds of the string.
* @param font The font to draw with.
* @param string The string to output.
* @param startIndex The start index within the string from which
* drawing will commence.
* @param length The number of characters to draw.
* @param color The color of the string.
*/
void drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font,
const CNxString &string, int startIndex, int length,
nxgl_mxpixel_t color);
/**
* Draw a portion of a string to the window.
* @param pos The window-relative x/y coordinate of the string.
* @param bound The window-relative bounds of the string.
* @param font The font to draw with.
* @param string The string to output.
* @param startIndex The start index within the string from which
* drawing will commence.
* @param length The number of characters to draw.
*/
void drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font,
const CNxString &string, int startIndex, int length);
/**
* Draw a portion of a string to the window and fill the background
* in one go.
* @param pos The window-relative x/y coordinate of the string.
* @param bound The window-relative bounds of the string.
* @param font The font to draw with.
* @param string The string to output.
* @param startIndex The start index within the string from which
* drawing will commence.
* @param length The number of characters to draw.
* @param color Foreground color
* @param background Background color
*/
void drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font,
const CNxString &string, int startIndex, int length,
nxgl_mxpixel_t color, nxgl_mxpixel_t background);
/**
* Draw an opaque bitmap to the window.
*
* @param x The window-relative x coordinate to draw the bitmap to.
* @param y The window-relative y coordinate to draw the bitmap to.
* @param width The width of the bitmap to draw.
* @param height The height of the bitmap to draw.
* @param bitmap Pointer to the bitmap to draw.
* @param bitmapX The window-relative x coordinate within the supplied
* bitmap to use as the origin.
* @param bitmapY The window-relative y coordinate within the supplied
* bitmap to use as the origin.
*/
void drawBitmap(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
const struct SBitmap *bitmap, int bitmapX, int bitmapY);
/**
* Draw a bitmap to the window, using the supplied transparent
* color as an invisible color.
*
* @param x The window-relative x coordinate to draw the bitmap to.
* @param y The window-relative y coordinate to draw the bitmap to.
* @param width The width of the bitmap to draw.
* @param height The height of the bitmap to draw.
* @param bitmap Pointer to the bitmap to draw.
* @param bitmapX The window-relative x coordinate within the supplied bitmap to use as
* the origin.
* @param bitmapY The window-relative y coordinate within the supplied bitmap to use as
* the origin.
* @param transparentColor The transparent color used in the bitmap.
*/
void drawBitmap(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
const struct SBitmap *bitmap, int bitmapX, int bitmapY,
nxgl_mxpixel_t transparentColor);
/**
* Draw a bitmap to the port in greyscale.
*
* @param x The window-relative x coordinate to draw the bitmap to.
* @param y The window-relative y coordinate to draw the bitmap to.
* @param width The width of the bitmap to draw.
* @param height The height of the bitmap to draw.
* @param bitmap Pointer to the bitmap to draw.
* @param bitmapX The window-relative x coordinate within the supplied bitmap to use as
* the origin.
* @param bitmapY The window-relative y coordinate within the supplied bitmap to use as
* the origin.
*/
void drawBitmapGreyScale(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
const struct SBitmap *bitmap, int bitmapX, int bitmapY);
/**
* Copy a rectangular region from the source coordinateinates to the
* destination coordinateinates.
*
* @param sourceX Source x coordinate.
* @param sourceY Source y coordinate.
* @param destX Destination x coordinate.
* @param destY Destination y coordinate.
* @param width Width of the rectangle to copy.
* @param height Height of the rectangle to copy.
*/
void copy(nxgl_coord_t sourceX, nxgl_coord_t sourceY,
nxgl_coord_t destX, nxgl_coord_t destY,
nxgl_coord_t width, nxgl_coord_t height);
/**
* Move a region by a specified distance in two dimensions.
*
* @param x X coordinate of the source area to move.
* @param y Y coordinate of the source area to move.
* @param deltaX Horizontal distance to move.
* @param deltaY Vertical distance to move.
* @param width Width of the area to move.
* @param height Height of the area to move.
*/
void move(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t deltaX, nxgl_coord_t deltaY,
nxgl_coord_t width, nxgl_coord_t height);
/**
* Convert the region to greyscale.
*
* @param x X coordinate of the region to change.
* @param y Y coordinate of the region to change.
* @param width Width of the region to change.
* @param height Height of the region to change.
*/
void greyScale(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height);
/**
* Invert colors in a region. NOTE: This allocates an in-memory
* buffer the size of one row in graphic memory. So it may only be
* useful for inverting small regions and its only current use is for
* the inverted cursor text.
*
* @param x X coordinate of the region to change.
* @param y Y coordinate of the region to change.
* @param width Width of the region to change.
* @param height Height of the region to change.
*/
void invert(nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height);
};
}
#endif // __cplusplus
#endif // __APPS_INCLUDE_GRAPHICS_NXWIDGETS_CGRAPHICSPORT_HXX
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