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px4-firmware/NxWidgets/libnxwidgets/include/cwidgeteventargs.hxx

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/****************************************************************************
* NxWidgets/libnxwidgets/include/cwidgeteventargs.hxx
*
* Copyright (C) 2012 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 most 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 __INCLUDE_CWIDGETEVENTARGS_HXX
#define __INCLUDE_CWIDGETEVENTARGS_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/nx/nxglib.h>
#include "nxconfig.hxx"
#include "teventargs.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Interesting Key events ***************************************************/
#define KEY_CODE_NONE ((nxwidget_char_t)0x00) /**< No key (NUL) */
#define KEY_CODE_BACKSPACE ((nxwidget_char_t)0x08) /**< Backspace key */
#define KEY_CODE_DELETE ((nxwidget_char_t)0x7f) /**< Delete key */
#define KEY_CODE_ENTER ((nxwidget_char_t)0x0d) /**< Enter key (carriage return) */
/****************************************************************************
* Implementation Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NXWidgets
{
class CNxWidget;
/**
* Cursor control events
*/
typedef enum
{
CURSOR_HOME = 1, // Set the cursor to the beginning
CURSOR_END, // Set the cursor to the end
CURSOR_UP, // Set the cursor up one row
CURSOR_DOWN, // Set the cursor down one row
CURSOR_LEFT, // Move the cursor left one column
CURSOR_RIGHT, // Move the cursor right one column
CURSOR_PAGEUP, // Move the cursor up one page
CURSOR_PAGEDOWN, // Move the cursor down one page
} ECursorControl;
/**
* Event arguments passed to listeners when a CNxWidget object raises an event.
*/
class CWidgetEventArgs : public TEventArgs<CNxWidget*>
{
private:
nxgl_coord_t m_x; /**< X coordinateinate of the event. */
nxgl_coord_t m_y; /**< Y coordinateinate of the event. */
nxgl_coord_t m_vX; /**< X distance moved during event, for dragging. */
nxgl_coord_t m_vY; /**< Y distance moved during event, for dragging. */
nxwidget_char_t m_key; /**< The key code / cursor code that raised the event. */
public:
/**
* Constructor.
*
* @param source Pointer to the CNxWidget object that raised the event.
* @param x The x coordinate of the event.
* @param y The y coordinate of the event.
* @param vX The x distance of the event.
* @param vY The y distance of the event.
* @param keyCode The keycode of the event.
*/
CWidgetEventArgs(CNxWidget *source, const nxgl_coord_t x, const nxgl_coord_t y,
const nxgl_coord_t vX, const nxgl_coord_t vY,
const nxwidget_char_t key)
: TEventArgs<CNxWidget*>(source)
{
m_x = x;
m_y = y;
m_vX = vX;
m_vY = vY;
m_key = key;
}
/**
* Get the x coordinate of the mouse event. Applies only to the following
* events: mouse click, mouse double click, mouse drag, mouse release
*
* @return The x coordinate of the event.
*/
inline const nxgl_coord_t getX(void) const
{
return m_x;
}
/**
* Get the y coordinate of the mouse event. Applies only to the following
* events: mouse click, mouse double click, mouse drag, mouse release
*
* @return The y coordinate of the event.
*/
inline const nxgl_coord_t getY(void) const
{
return m_y;
}
/**
* Get the x-axis mouse move distance of the mouse event. Applies
* only to the mouse drag event.
*
* @return The x-axis mouse move distance of the event.
*/
inline const nxgl_coord_t getVX(void) const
{
return m_vX;
}
/**
* Get the y-axis mouse move distance of the event. Applies
* only to the mouse drag event.
*
* @return The y-axis mouse move distance of the event.
*/
inline const nxgl_coord_t getVY(void) const
{
return m_vY;
}
/**
* Get the key press that generated the event. Applies only to
* the key press event.
*
* @return The key that generated the event.
*/
inline const nxwidget_char_t getKey(void) const
{
return m_key;
}
/**
* Get the cursor control that generated the event. Applies only
* to the curso control event.
*
* @return The cursor control that generated the event.
*/
inline const ECursorControl getCursorControl(void) const
{
return (ECursorControl)m_key;
}
};
}
#endif // __cplusplus
#endif // __INCLUDE_CWIDGETEVENTARGS_HXX
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