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/****************************************************************************
* NxWidgets/libnxwidgets/src/ckeypad.cxx
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxglib.h>
#include "cwidgetcontrol.hxx"
#include "cwidgetstyle.hxx"
#include "ckeypad.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
// The geometry of the button array
#define BUTTONARRAY_NCOLUMNS 4
#define BUTTONARRAY_NROWS 7
/****************************************************************************
* Private Data
****************************************************************************/
using namespace NXWidgets;
static FAR const char *g_alphaLabels[BUTTONARRAY_NCOLUMNS*BUTTONARRAY_NROWS] = {
"=>", "A", "B", "<DEL",
"C", "D", "E", "F",
"G", "H", "I", "J",
"K", "L", "M", "N",
"O", "P", "Q", "R",
"S", "T", "U", "V",
"W", "X", "Y", "Z"
};
static FAR const char *g_numLabels[BUTTONARRAY_NCOLUMNS*BUTTONARRAY_NROWS] = {
"=>", "0", "1", "<DEL",
"2", "3", "4", "5",
"6", "7", "8", "9",
"-", "#", "*", "&",
"?", "!", "@", "%",
":", ",", ".", "/",
"\"", "'", "(", ")"
};
/****************************************************************************
* Method Implementations
****************************************************************************/
/**
* Constructor for buttons that display a string.
*
* @param pWidgetControl The widget control for the display.
* @param hNxServer The NX server that will receive the keyboard input
* @param x The x coordinate of the keypad, relative to its parent.
* @param y The y coordinate of the keypad, relative to its parent.
* @param width The width of the keypad
* @param height The height of the keypad
* @param style The style that the button should use. If this is not
* specified, the button will use the global default widget
* style.
*/
CKeypad::CKeypad(CWidgetControl *pWidgetControl, NXHANDLE hNxServer,
nxgl_coord_t x, nxgl_coord_t y,
nxgl_coord_t width, nxgl_coord_t height,
CWidgetStyle *style)
: CButtonArray(pWidgetControl, x, y, 4, 7, width / BUTTONARRAY_NCOLUMNS,
height / BUTTONARRAY_NROWS, style)
{
m_hNxServer = hNxServer;
// Force the height and width to be an exact multiple of the button height and width
resize(m_buttonWidth * m_buttonColumns, m_buttonHeight * m_buttonRows);
// Start in alphabetic mode
setKeypadMode(false);
}
/**
* Catch button clicks.
*
* @param x The x coordinate of the click.
* @param y The y coordinate of the click.
*/
void CKeypad::onClick(nxgl_coord_t x, nxgl_coord_t y)
{
// Perform the redraw
CButtonArray::onClick(x, y);
// The button should now be clicked
int column;
int row;
if (isButtonClicked(column, row))
{
// The left arrow at (0,0) is a special case
char ch;
if (column == 0 && row == 0)
{
m_widgetControl->newCursorControlEvent(CURSOR_RIGHT);
return;
}
// The backspace at (3,0) is a special case
else if (column == 3 && row == 0)
{
ch = KEY_CODE_BACKSPACE;
}
// Otherwise, just grab the character for the arrays
else
{
int index = row * BUTTONARRAY_NCOLUMNS + column;
FAR const char *ptr;
if (m_numeric)
{
ptr = g_numLabels[index];
}
else
{
ptr = g_alphaLabels[index];
}
ch = ptr[0];
}
// Then inject the keyboard input into the NX server. The NX
// server will determine which window receives the input.
// The ultimate recipient will be the widget in the top window
// that has focus.
(void)nx_kbdchin(m_hNxServer, (uint8_t)ch);
}
}
/**
* Configure the keypad for the currenly selected display mode.
*/
void CKeypad::configureKeypadMode(void)
{
// Add the labels to each button. Each call to setText would
// cause a text change event and, hence, redrawing of the
FAR const char **ptr = m_numeric ? g_numLabels : g_alphaLabels;
for (int j = 0; j < BUTTONARRAY_NROWS; j++)
{
for (int i = 0; i < BUTTONARRAY_NCOLUMNS; i++)
{
// setText does this. But each call to setText would
// cause a text change even and, hence, redrawing of
// the whole keypad. So we access the protected data
// directly and redraw only once.
CNxString string = *ptr++;
m_buttonText[j * m_buttonColumns + i] = string;
}
}
// Then redraw the display
onTextChange();
}
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