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Diffstat (limited to 'NxWidgets/libnxwidgets/src/ckeypad.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/ckeypad.cxx | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/ckeypad.cxx b/NxWidgets/libnxwidgets/src/ckeypad.cxx new file mode 100644 index 000000000..898885c62 --- /dev/null +++ b/NxWidgets/libnxwidgets/src/ckeypad.cxx @@ -0,0 +1,214 @@ +/**************************************************************************** + * 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(); +} + |