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Diffstat (limited to 'NxWidgets/libnxwidgets/src/cprogressbar.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cprogressbar.cxx | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/cprogressbar.cxx b/NxWidgets/libnxwidgets/src/cprogressbar.cxx new file mode 100644 index 000000000..5f29a3f7e --- /dev/null +++ b/NxWidgets/libnxwidgets/src/cprogressbar.cxx @@ -0,0 +1,230 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/src/cprogressbar.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. + * + **************************************************************************** + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <stdint.h> +#include <stdbool.h> +#include <cstdio> +#include <cstring> + +#include <nuttx/nx/nxglib.h> + +#include "cprogressbar.hxx" +#include "cgraphicsport.hxx" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * CButton Method Implementations + ****************************************************************************/ + +using namespace NXWidgets; + +/** + * Constructor. + * + * @param pWidgetControl The widget control for the display. + * @param x The x coordinate of the progress bar, relative to its parent. + * @param y The y coordinate of the progress bar, relative to its parent. + * @param width The width of the progress bar. + * @param height The height of the progress bar. + */ + +CProgressBar::CProgressBar(CWidgetControl *pWidgetControl, + nxgl_coord_t x, nxgl_coord_t y, + nxgl_coord_t width, nxgl_coord_t height) +: CNxWidget(pWidgetControl, x, y, width, height, 0) +{ + m_minimumValue = 0; + m_maximumValue = 0; + m_value = 0; + m_showPercentageText = true; + m_flags.borderless = false; +} + +/** + * Set the value that of the progress bar. + * + * @param value The new value. + */ + +void CProgressBar::setValue(const int16_t value) +{ + m_value = value; + + // Limit to max/min values + + if (m_value > m_maximumValue) + { + m_value = m_maximumValue; + } + + if (m_value < m_minimumValue) + { + m_value = m_minimumValue; + } + + redraw(); +} + +/** + * Draw the area of this widget that falls within the clipping region. + * Called by the redraw() function to draw all visible regions. + * + * @param port The CGraphicsPort to draw to. + * @see redraw() + */ + +void CProgressBar::drawContents(CGraphicsPort *port) +{ + // Get the drawing window, accounting for the presence of any border + + CRect rect; + getRect(rect); + + // Calculate ratio of pixels to value range (max fractional value of 255) + + uint32_t ratio = ((uint32_t)rect.getWidth() << 8) / (uint32_t)(m_maximumValue - m_minimumValue); + + // Convert value using ratio, rounding up and shifting down + + int16_t barWidth = ((m_value * ratio) + 128) >> 8; + + // Draw filled region + + port->drawFilledRect(rect.getX(), rect.getY(), barWidth, rect.getHeight(), getHighlightColor()); + + // Draw unfilled background + + if (barWidth < rect.getWidth()) + { + port->drawFilledRect(rect.getX() + barWidth, rect.getY(), + rect.getWidth() - barWidth, rect.getHeight(), + getBackgroundColor()); + } + + // Draw completion percentage text + + if (m_showPercentageText) + { + char text[6]; + sprintf(text, "%d%%", (100 * m_value) / (m_maximumValue - m_minimumValue)); + + struct nxgl_point_s pos; + pos.x = rect.getX() + + ((rect.getWidth() - getFont()->getStringWidth(text)) >> 1); + pos.y = rect.getY() + + ((rect.getHeight() - getFont()->getHeight()) >> 1); + + // Determine the background and text color + + nxgl_mxpixel_t textColor; + + if (!isEnabled()) + { + textColor = getDisabledTextColor(); + } + else + { + textColor = getEnabledTextColor(); + } + + // And draw the text using the selected color + + port->drawText(&pos, &rect, getFont(), text, 0, strlen(text), + textColor); + } +} + +/** + * Draw the area of this widget that falls within the clipping region. + * Called by the redraw() function to draw all visible regions. + * + * @param port The CGraphicsPort to draw to. + * @see redraw() + */ + +void CProgressBar::drawBorder(CGraphicsPort *port) +{ + // Stop drawing if the widget indicates it should not have an outline + + if (!isBorderless()) + { + port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(), + getShadowEdgeColor(), getShineEdgeColor()); + } +} |