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#include <QDebug>
#include <QGraphicsSceneMouseEvent>
#include <QPainter>
#include <QPainterPath>
#include <QFontMetrics>
#include "GraphicsButtonObject.h"
QPixmap *GraphicsButtonObject::s_tmpGfx = 0;
int GraphicsButtonObject::s_ref = 0;
GraphicsButtonObject::GraphicsButtonObject(const QPixmap &releasedPixmap,
QGraphicsPixmapItem *parent,
QGraphicsScene *scene)
: QObject(0),
QGraphicsPixmapItem(releasedPixmap, parent, scene)
{
s_ref++;
m_releasedGfx = releasedPixmap;
}
GraphicsButtonObject::GraphicsButtonObject(QGraphicsPixmapItem *parent,
QGraphicsScene *scene)
: QObject(0),
QGraphicsPixmapItem(parent, scene)
{
s_ref++;
}
GraphicsButtonObject::GraphicsButtonObject(const QString &str,
QGraphicsPixmapItem *parent,
QGraphicsScene *scene)
: QObject(0),
QGraphicsPixmapItem(parent, scene)
{
s_ref++;
int pw = 280;
int ph = 60;
// Draw the gradients only once
if (!s_tmpGfx)
{
//DBG("generating button gradients");
s_tmpGfx = new QPixmap(pw, ph);
QPainter painter(s_tmpGfx);
painter.setPen(Qt::NoPen);
painter.setBrush(Qt::white);
painter.drawRect(s_tmpGfx->rect());
QLinearGradient grad;
grad.setCoordinateMode(QGradient::ObjectBoundingMode);
grad.setStart(0, 0);
grad.setFinalStop(0, 1);
/*
grad.setColorAt(0, Qt::white);
grad.setColorAt(0.20, QColor(137, 175, 201));
grad.setColorAt(0.35, QColor(35, 136, 207));
grad.setColorAt(0.5, QColor(32, 98, 145));
grad.setColorAt(0.65, QColor(35, 136, 207));
grad.setColorAt(0.80, QColor(137, 175, 201));
grad.setColorAt(1, Qt::white);
*/
grad.setColorAt(0, Qt::red);
grad.setColorAt(0.20, QColor(255, 127, 0));
grad.setColorAt(0.35, QColor(255, 255, 0));
grad.setColorAt(0.5, QColor(0, 255, 0));
grad.setColorAt(0.65, QColor(0, 0, 255));
grad.setColorAt(0.80, QColor(111, 0, 255));
grad.setColorAt(1, QColor(143, 0, 255));
painter.setBrush(QBrush(grad));
painter.drawRect(4, 4, pw-8, ph-8);
}
QPixmap released = QPixmap(*s_tmpGfx);
QPainter painter(&released);
QFont font("Arial", 36);
font.setLetterSpacing(QFont::PercentageSpacing, 95);
QFontMetrics metrics(font);
QRect bbox = metrics.boundingRect(str);
QPainterPath path;
int x = (ph - metrics.height()) / 2;
path.addText(pw/2-bbox.width()/2, x + metrics.ascent(), font, str);
painter.setRenderHint(QPainter::Antialiasing);
painter.setPen(QPen(Qt::black, 3));
painter.setBrush(Qt::white);
painter.drawPath(path);
QPixmap pressed(released);
QPainter painter2(&pressed);
painter2.setBrush(QColor(0, 0, 0, 127));
painter2.drawRect(pressed.rect());
m_releasedGfx = released;
m_pressedGfx = pressed;
setPixmap(released);
}
GraphicsButtonObject::~GraphicsButtonObject()
{
s_ref--;
if (s_tmpGfx && s_ref == 0)
{
delete s_tmpGfx;
s_tmpGfx = 0;
}
}
void GraphicsButtonObject::setPressedPixmap(const QPixmap &pixmap)
{
m_pressedGfx = pixmap;
}
void GraphicsButtonObject::setReleasedPixmap(const QPixmap &pixmap)
{
m_releasedGfx = pixmap;
}
void GraphicsButtonObject::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
setPixmap(m_releasedGfx);
emit clicked();
}
void GraphicsButtonObject::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
setPixmap(m_pressedGfx);
}
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