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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: qt-info@nokia.com
**
** This software, including documentation, is protected by copyright
** controlled by Nokia Corporation. You may use this software in
** accordance with the terms and conditions contained in the Qt Phone
** Demo License Agreement.
**
****************************************************************************/
#include <QPainter>
#include <QDateTime>
#include <QRadialGradient>
#include "global.h"
#include "dataresource.h"
#include "clockwidget.h"
class ClockEvent
{
public:
ClockEvent(const QDateTime &begin, const QDateTime &end,
const QColor &color, const QString &text)
: begin(begin), end(end), color(color), text(text) { }
QDateTime begin;
QDateTime end;
QColor color;
QString text;
};
ClockWidget::ClockWidget(QGraphicsItem *parent)
: QGraphicsWidget(parent),
m_background(Resource::pixmap("idle_clock_structure.png")),
m_divLine(Resource::pixmap("idle_line.png")),
m_middleKnob(Resource::pixmap("idle_clock_pointers_middle.png")),
m_hourPointer(Resource::pixmap("idle_clock_pointer_hour.png")),
m_minutePointer(Resource::pixmap("idle_clock_pointer_minutes.png"))
{
QFont defaultFont(Resource::stringValue("default/font-family"));
m_fontColor = QColor(Resource::stringValue("clock-widget/font-color"));
m_dayFont = defaultFont;
m_dayFont.setBold(true);
m_dayFont.setPixelSize(Resource::intValue("clock-widget/day-font-size"));
m_labelFont = defaultFont;
m_labelFont.setPixelSize(Resource::intValue("clock-widget/label-font-size"));
m_weekDayFont = defaultFont;
m_weekDayFont.setPixelSize(Resource::intValue("clock-widget/wday-font-size"));
m_labelHeight = Resource::intValue("clock-widget/label-height");
m_labelPos = Resource::value("clock-widget/label-init-pos").toPoint();
m_knobPoint = Resource::value("clock-widget/knob-pos").toPoint();
m_middlePoint = Resource::value("clock-widget/middle-pos").toPoint();
m_dayRect = Resource::value("clock-widget/day-label-rect").toRect();
m_weekDayRect = Resource::value("clock-widget/wday-label-rect").toRect();
m_eventsPixmapRect = Resource::value("clock-widget/events-pixmap-rect").toRect();
m_eventsInnerOffset = Resource::intValue("clock-widget/events-inner-offset");
m_eventsInnerDiameter = Resource::intValue("clock-widget/events-inner-diameter");
setMinimumSize(m_background.size());
setMaximumSize(m_background.size());
connect(&m_timer, SIGNAL(timeout()), SLOT(updateTime()));
m_timer.start(Resource::intValue("clock-widget/update-timeout"));
m_eventsPixmap = QPixmap(m_eventsPixmapRect.size());
}
ClockWidget::~ClockWidget()
{
qDeleteAll(m_events);
}
void ClockWidget::addEvent(const QDateTime &begin, const QDateTime &end,
const QColor &color, const QString &text)
{
m_events.append(new ClockEvent(begin, end, color, text));
updateEvents();
update();
}
void ClockWidget::updateTime()
{
update();
}
void ClockWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
// store and adjust render hints
const QPainter::RenderHints hints = painter->renderHints();
painter->setRenderHints(hints | QPainter::SmoothPixmapTransform);
// draw clock base pixmap
painter->drawPixmap(0, 0, m_background);
// draw day information
const QDateTime &dateTime = QDateTime::currentDateTime();
painter->setPen(m_fontColor);
painter->setFont(m_dayFont);
painter->drawText(m_dayRect, Qt::AlignHCenter | Qt::AlignVCenter,
dateTime.toString("dd"));
painter->setFont(m_weekDayFont);
painter->drawText(m_weekDayRect, Qt::AlignHCenter | Qt::AlignVCenter,
dateTime.toString("ddd").toUpper());
painter->drawPixmap(m_eventsPixmapRect.x(), m_eventsPixmapRect.y(),
m_eventsPixmap);
// calculate min/hour pointer angles
const QTime &time = dateTime.time();
const int hourAngle = 180 + qRound(30.0 * (time.hour() + time.minute() / 60.0));
const int minuteAngle = 180 + qRound(6.0 * (time.minute() + time.second() / 60.0));
// paint minute pointer
painter->save();
painter->translate(m_middlePoint);
painter->rotate(minuteAngle);
painter->drawPixmap(-m_minutePointer.width() / 2, 0, m_minutePointer);
painter->restore();
// paint hour pointer
painter->save();
painter->translate(m_middlePoint);
painter->rotate(hourAngle);
painter->drawPixmap(-m_hourPointer.width() / 2, 0, m_hourPointer);
painter->restore();
// paint middle knob
painter->drawPixmap(m_knobPoint, m_middleKnob);
int i = 0;
int bx = m_labelPos.x();
int by = m_labelPos.y();
int bw = m_divLine.width();
QString lastText;
QFont font = m_labelFont;
painter->drawPixmap(bx, by, m_divLine);
// paint events descriptions
foreach (ClockEvent *event, m_events) {
// show different events
if (event->text == lastText)
continue;
lastText = event->text;
painter->setPen(event->color);
painter->setBrush(event->color);
painter->drawRoundedRect(bx + 4, by + 0.3 * m_labelHeight,
0.1 * bw, 0.5 * m_labelHeight, 2, 2);
font.setBold(true);
painter->setFont(font);
drawTextWithShadow(painter, bx + 0.13 * bw, by + 0.75 * m_labelHeight,
event->begin.toString("hh:mm"), Qt::white);
font.setBold(false);
painter->setFont(font);
drawTextWithShadow(painter, bx + 0.3 * bw, by + 0.75 * m_labelHeight,
event->text, m_fontColor);
painter->drawPixmap(bx, by + m_labelHeight, m_divLine);
by += m_labelHeight;
// show just two events
if (++i > 1) break;
}
// restore render hints
painter->setRenderHints(hints);
}
void ClockWidget::updateEvents()
{
// clear the cache
m_eventsPixmap.fill(Qt::transparent);
QPainter painter(&m_eventsPixmap);
painter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
painter.setOpacity(0.9);
painter.setPen(Qt::NoPen);
const int inner = m_eventsInnerOffset;
const int diameter = m_eventsInnerDiameter;
foreach (ClockEvent *event, m_events) {
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
// calculate start angle
const QTime &ta = event->begin.time();
int ia = qRound(30.0 * (ta.hour() + ta.minute() / 60.0));
// calculate end angle
const QTime &tb = event->end.time();
int ib = qRound(30.0 * (tb.hour() + tb.minute() / 60.0)) - ia;
// drawPie parameters must be specified in 1/16th of a degree
// and it's counter-clockwise. so we must adjust to the right values.
ia = ia * -16 + 90 * 16;
ib = ib * -16;
// draw the event pie
painter.setBrush(event->color);
painter.drawPie(0, 0, diameter, diameter, ia, ib);
// draw some gradients to simulate light effects
QRadialGradient gradient(diameter / 2, diameter / 2, diameter / 2 - 35);
gradient.setColorAt(0.9, QColor::fromRgbF(1, 1, 1, 0.5));
gradient.setColorAt(1, QColor::fromRgbF(0, 0, 0, 0.0));
painter.setBrush(gradient);
painter.drawPie(0, 0, diameter, diameter, ia, ib);
QRadialGradient gradient2(diameter / 2, diameter / 2, diameter / 2);
gradient2.setColorAt(0.98, QColor::fromRgbF(0, 0, 0, 0.0));
gradient2.setColorAt(1, QColor::fromRgbF(0, 0, 0, 0.5));
painter.setBrush(gradient2);
painter.drawPie(0, 0, diameter, diameter, ia, ib);
QRadialGradient gradient3(diameter / 2, diameter / 2, diameter / 2);
gradient3.setColorAt(0, QColor::fromRgbF(1, 1, 1, 0.4));
gradient3.setColorAt(1, QColor::fromRgbF(1, 1, 1, 0.0));
gradient3.setFocalPoint(100, 100);
painter.setBrush(gradient3);
painter.drawPie(0, 0, diameter, diameter, ia, ib);
}
// clear the middle of the pies
painter.setBrush(Qt::transparent);
painter.setCompositionMode(QPainter::CompositionMode_Clear);
painter.drawPie(inner, inner, diameter - inner * 2,
diameter - inner * 2, 0, 360 * 16);
}
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