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/***************************************************************************
wstatuslight.cpp - description
-------------------
begin : Wed May 30 2007
copyright : (C) 2003 by Tue & Ken Haste Andersen
(C) 2007 by John Sully (converted from WVumeter)
email : jsully@scs.ryerson.ca
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "widget/wstatuslight.h"
#include <QPaintEvent>
#include <QStylePainter>
#include <QStyleOption>
#include <QtDebug>
#include <QPixmap>
WStatusLight::WStatusLight(QWidget * parent)
: WWidget(parent),
m_iPos(0) {
setNoPos(0);
}
WStatusLight::~WStatusLight() {
}
void WStatusLight::setNoPos(int iNoPos) {
// If pixmap array is already allocated, delete it.
if (!m_pixmaps.empty()) {
// Clear references to existing pixmaps.
m_pixmaps.resize(0);
}
// values less than 2 make no sense (need at least off, on)
if (iNoPos < 2) {
iNoPos = 2;
}
m_pixmaps.resize(iNoPos);
}
WStatusLight::SizeMode WStatusLight::SizeModeFromString(QString str) {
if (str.toUpper() == "FIXED" ) {
return FIXED;
} else if (str.toUpper() == "RESIZE") {
return RESIZE;
}
qWarning() << "Unknown status light size mode " << str << ", using FIXED";
return FIXED;
}
void WStatusLight::setup(QDomNode node, const SkinContext& context) {
// Number of states. Add one to account for the background.
setNoPos(context.selectInt(node, "NumberPos") + 1);
// Set pixmaps
for (int i = 0; i < m_pixmaps.size(); ++i) {
// Accept either PathStatusLight or PathStatusLight1 for value 1,
QString nodeName = QString("PathStatusLight%1").arg(i);
if (context.hasNode(node, nodeName)) {
QString mode = context.selectAttributeString(
context.selectElement(node, nodeName), "sizemode", "FIXED");
setPixmap(i, context.getSkinPath(context.selectString(node, nodeName)),
SizeModeFromString(mode));
} else if (i == 0 && context.hasNode(node, "PathBack")) {
QString mode = context.selectAttributeString(
context.selectElement(node, "PathBack"), "sizemode", "FIXED");
setPixmap(i, context.getSkinPath(context.selectString(node, "PathBack")),
SizeModeFromString(mode));
} else if (i == 1 && context.hasNode(node, "PathStatusLight")) {
QString mode = context.selectAttributeString(
context.selectElement(node, "PathStatusLight"), "sizemode", "FIXED");
setPixmap(i, context.getSkinPath(context.selectString(node, "PathStatusLight")),
SizeModeFromString(mode));
} else {
m_pixmaps[i].clear();
}
}
}
void WStatusLight::setPixmap(int iState, const QString& filename, SizeMode mode) {
if (iState < 0 || iState >= m_pixmaps.size()) {
return;
}
PaintablePointer pPixmap = WPixmapStore::getPaintable(filename,
Paintable::STRETCH);
if (!pPixmap.isNull() && !pPixmap->isNull()) {
m_pixmaps[iState] = pPixmap;
switch (mode) {
case RESIZE:
// Allow the pixmap to stretch or tile.
setBaseSize(pPixmap->size());
break;
case FIXED:
// Set size of widget equal to pixmap size
setFixedSize(pPixmap->size());
break;
default:
setFixedSize(pPixmap->size());
break;
}
} else {
qDebug() << "WStatusLight: Error loading pixmap:" << filename << iState;
m_pixmaps[iState].clear();
}
}
void WStatusLight::onConnectedControlValueChanged(double v) {
int val = static_cast<int>(v);
if (m_iPos == val) {
return;
}
if (m_pixmaps.size() == 2) {
// original behavior for two-state lights: any non-zero value is "on"
m_iPos = val > 0 ? 1 : 0;
update();
} else if (val < m_pixmaps.size() && val >= 0) {
// multi-state behavior: values must be correct
m_iPos = val;
update();
} else {
qDebug() << "Warning: wstatuslight asked for invalid position:"
<< val << "max val:" << m_pixmaps.size()-1;
}
}
void WStatusLight::paintEvent(QPaintEvent *) {
QStyleOption option;
option.initFrom(this);
QStylePainter p(this);
p.drawPrimitive(QStyle::PE_Widget, option);
if (m_iPos < 0 || m_iPos >= m_pixmaps.size()) {
return;
}
PaintablePointer pPixmap = m_pixmaps[m_iPos];
if (pPixmap.isNull() || pPixmap->isNull()) {
return;
}
pPixmap->draw(0, 0, &p);
}
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