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Diffstat (limited to 'NxWidgets/libnxwidgets/src/cnumericedit.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cnumericedit.cxx | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cnumericedit.cxx b/NxWidgets/libnxwidgets/src/cnumericedit.cxx new file mode 100644 index 000000000..e0df014c5 --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cnumericedit.cxx @@ -0,0 +1,262 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/include/cnumericedit.cxx + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * Petteri Aimonen <jpa@kapsi.fi> + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> +#include <stdio.h> +#include <limits.h> + +#include <nuttx/nx/nxglib.h> +#include <debug.h> + +#include "cnumericedit.hxx" +#include "cbutton.hxx" +#include "clabel.hxx" +#include "cnxtimer.hxx" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * CNumericEdit Method Implementations + ****************************************************************************/ + +using namespace NXWidgets; + +// Label that passes drag events + +class CDraggableLabel: public CLabel +{ +public: + CDraggableLabel(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, + nxgl_coord_t width, nxgl_coord_t height, const CNxString &text, + CWidgetStyle *style = (CWidgetStyle *)NULL): + CLabel(pWidgetControl, x, y, width, height, text, style) + { + setDraggable(true); + } + + virtual void onClick(nxgl_coord_t x, nxgl_coord_t y) + { + startDragging(x, y); + } +}; + +/** + * Constructor for a numeric edit control. + * + * @param pWidgetControl The controlling widget for the display + * @param x The x coordinate of the text box, relative to its parent. + * @param y The y coordinate of the text box, relative to its parent. + * @param width The width of the textbox. + * @param height The height of the textbox. + * @param style The style that the button should use. If this is not + * specified, the button will use the global default widget + * style. + */ + +CNumericEdit::CNumericEdit(CWidgetControl *pWidgetControl, nxgl_coord_t x, nxgl_coord_t y, + nxgl_coord_t width, nxgl_coord_t height, + CWidgetStyle *style) +: CNxWidget(pWidgetControl, x, y, width, height, 0, style) +{ + m_label = new CDraggableLabel(pWidgetControl, height, 0, width - 2 * height, height, CNxString("0"), style); + m_label->addWidgetEventHandler(this); + addWidget(m_label); + + m_button_minus = new CButton(pWidgetControl, 0, 0, height, height, CNxString("-")); + m_button_minus->addWidgetEventHandler(this); + addWidget(m_button_minus); + + m_button_plus = new CButton(pWidgetControl, width - height, 0, height, height, CNxString("+")); + m_button_plus->addWidgetEventHandler(this); + addWidget(m_button_plus); + + m_timer = new CNxTimer(pWidgetControl, 100, true); + m_timer->addWidgetEventHandler(this); + addWidget(m_timer); + + m_minimum = INT_MIN; + m_maximum = INT_MAX; + m_increment = 1; + setValue(0); +} + +CNumericEdit::~CNumericEdit() +{ + delete m_label; + delete m_button_minus; + delete m_button_plus; +} + +void CNumericEdit::getPreferredDimensions(CRect &rect) const +{ +} + +void CNumericEdit::setFont(CNxFont *font) +{ + m_label->setFont(font); +} + +void CNumericEdit::onResize(nxgl_coord_t width, nxgl_coord_t height) +{ +} + +void CNumericEdit::handleClickEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() == m_button_plus) + { + setValue(m_value + m_increment); + m_timercount = 0; + m_timer->start(); + } + else if (e.getSource() == m_button_minus) + { + setValue(m_value - m_increment); + m_timercount = 0; + m_timer->start(); + } +} + +void CNumericEdit::handleReleaseEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() == m_button_plus || e.getSource() == m_button_minus) + { + m_timer->stop(); + } +} + +void CNumericEdit::handleReleaseOutsideEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() == m_button_plus || e.getSource() == m_button_minus) + { + m_timer->stop(); + } +} + +void CNumericEdit::handleActionEvent(const CWidgetEventArgs &e) +{ + if (e.getSource() == m_timer) + { + m_timercount++; + + int increment = m_increment; + if (m_timercount > 50) + { + increment = m_increment * 100; + } + else if (m_timercount > 10) + { + increment = m_increment * 10; + } + + if (m_button_minus->isClicked()) + { + setValue(m_value - increment); + } + else if (m_button_plus->isClicked()) + { + setValue(m_value + increment); + } + } +} + +void CNumericEdit::handleDragEvent(const CWidgetEventArgs &e) +{ + int x = e.getX() - m_label->getX(); + int width = m_label->getWidth(); + int value = m_minimum + (m_maximum - m_minimum) * x / width; + setValue(value / m_increment * m_increment); +} + +void CNumericEdit::setValue(int value) +{ + if (value < m_minimum) value = m_minimum; + if (value > m_maximum) value = m_maximum; + + m_value = value; + + char buf[10]; + snprintf(buf, sizeof(buf), "%d", m_value); + CNxString text(buf); + + m_label->setText(text); + + m_widgetEventHandlers->raiseValueChangeEvent(); + + redraw(); +} |