df3eaebf59
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3
231 lines
7.9 KiB
C++
231 lines
7.9 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/src/cprogressbar.cxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in most NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <cstdio>
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#include <cstring>
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#include <nuttx/nx/nxglib.h>
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#include "cprogressbar.hxx"
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#include "cgraphicsport.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* CButton Method Implementations
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****************************************************************************/
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using namespace NXWidgets;
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/**
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* Constructor.
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*
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* @param pWidgetControl The widget control for the display.
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* @param x The x coordinate of the progress bar, relative to its parent.
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* @param y The y coordinate of the progress bar, relative to its parent.
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* @param width The width of the progress bar.
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* @param height The height of the progress bar.
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*/
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CProgressBar::CProgressBar(CWidgetControl *pWidgetControl,
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nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t width, nxgl_coord_t height)
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: CNxWidget(pWidgetControl, x, y, width, height, 0)
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{
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m_minimumValue = 0;
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m_maximumValue = 0;
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m_value = 0;
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m_showPercentageText = true;
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m_flags.borderless = false;
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}
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/**
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* Set the value that of the progress bar.
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*
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* @param value The new value.
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*/
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void CProgressBar::setValue(const int16_t value)
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{
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m_value = value;
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// Limit to max/min values
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if (m_value > m_maximumValue)
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{
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m_value = m_maximumValue;
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}
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if (m_value < m_minimumValue)
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{
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m_value = m_minimumValue;
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}
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redraw();
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CProgressBar::drawContents(CGraphicsPort *port)
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{
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// Get the drawing window, accounting for the presence of any border
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CRect rect;
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getRect(rect);
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// Calculate ratio of pixels to value range (max fractional value of 255)
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uint32_t ratio = ((uint32_t)rect.getWidth() << 8) / (uint32_t)(m_maximumValue - m_minimumValue);
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// Convert value using ratio, rounding up and shifting down
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int16_t barWidth = ((m_value * ratio) + 128) >> 8;
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// Draw filled region
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port->drawFilledRect(rect.getX(), rect.getY(), barWidth, rect.getHeight(), getHighlightColor());
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// Draw unfilled background
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if (barWidth < rect.getWidth())
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{
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port->drawFilledRect(rect.getX() + barWidth, rect.getY(),
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rect.getWidth() - barWidth, rect.getHeight(),
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getBackgroundColor());
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}
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// Draw completion percentage text
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if (m_showPercentageText)
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{
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char text[6];
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sprintf(text, "%d%%", (100 * m_value) / (m_maximumValue - m_minimumValue));
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struct nxgl_point_s pos;
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pos.x = rect.getX() +
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((rect.getWidth() - getFont()->getStringWidth(text)) >> 1);
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pos.y = rect.getY() +
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((rect.getHeight() - getFont()->getHeight()) >> 1);
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// Determine the background and text color
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nxgl_mxpixel_t textColor;
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if (!isEnabled())
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{
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textColor = getDisabledTextColor();
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}
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else
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{
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textColor = getEnabledTextColor();
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}
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// And draw the text using the selected color
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port->drawText(&pos, &rect, getFont(), text, 0, strlen(text),
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textColor);
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}
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}
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/**
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* Draw the area of this widget that falls within the clipping region.
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* Called by the redraw() function to draw all visible regions.
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*
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* @param port The CGraphicsPort to draw to.
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* @see redraw()
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*/
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void CProgressBar::drawBorder(CGraphicsPort *port)
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{
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// Stop drawing if the widget indicates it should not have an outline
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if (!isBorderless())
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{
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port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(),
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getShadowEdgeColor(), getShineEdgeColor());
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}
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}
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