void paintEvent(QPaintEvent *)
{
QSize pageSize = m_pageLayout.fullRectPoints().size();
QSizeF scaledSize = pageSize.scaled(width() - 10, height() - 10, Qt::KeepAspectRatio);
QRect pageRect = QRect(QPoint(0,0), scaledSize.toSize());
pageRect.moveCenter(rect().center());
qreal width_factor = scaledSize.width() / pageSize.width();
qreal height_factor = scaledSize.height() / pageSize.height();
QMarginsF margins = m_pageLayout.margins(QPageLayout::Point);
int left = qRound(margins.left() * width_factor);
int top = qRound(margins.top() * height_factor);
int right = qRound(margins.right() * width_factor);
int bottom = qRound(margins.bottom() * height_factor);
QRect marginRect(pageRect.x() + left, pageRect.y() + top,
pageRect.width() - (left + right + 1), pageRect.height() - (top + bottom + 1));
QPainter p(this);
QColor shadow(palette().mid().color());
for (int i=1; i<6; ++i) {
shadow.setAlpha(180-i*30);
QRect offset(pageRect.adjusted(i, i, i, i));
p.setPen(shadow);
p.drawLine(offset.left(), offset.bottom(), offset.right(), offset.bottom());
p.drawLine(offset.right(), offset.top(), offset.right(), offset.bottom()-1);
}
p.fillRect(pageRect, palette().light());
if (marginRect.isValid()) {
p.setPen(QPen(palette().color(QPalette::Dark), 0, Qt::DotLine));
p.drawRect(marginRect);
marginRect.adjust(2, 2, -1, -1);
p.setClipRect(marginRect);
QFont font;
font.setPointSizeF(font.pointSizeF()*0.25);
p.setFont(font);
p.setPen(palette().color(QPalette::Dark));
QString text(QLatin1String("Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi."));
for (int i=0; i<3; ++i)
text += text;
const int spacing = pageRect.width() * 0.1;
const int textWidth = (marginRect.width() - (spacing * (m_pagePreviewColumns-1))) / m_pagePreviewColumns;
const int textHeight = (marginRect.height() - (spacing * (m_pagePreviewRows-1))) / m_pagePreviewRows;
for (int x = 0 ; x < m_pagePreviewColumns; ++x) {
for (int y = 0 ; y < m_pagePreviewRows; ++y) {
QRect textRect(marginRect.left() + x * (textWidth + spacing),
marginRect.top() + y * (textHeight + spacing),
textWidth, textHeight);
p.drawText(textRect, Qt::TextWordWrap|Qt::AlignVCenter, text);
}
}
}
}
double ImageWidget::scaleFactor()
{
QSize size = imageSize();
if (size.width() <= 0 || size.height() <= 0) {
return 1;
}
int w = width();
int h = height();
QSize scale = size.scaled(w, h, Qt::KeepAspectRatio);
return ((double)scale.width()) / size.width();
}
QJSValue Image::setScaledSize(int w, int h, const QJSValue &scaleMode)
{
QSize newSize(w, h);
if (scaleMode.isNumber()) {
int mode = scaleMode.toInt();
if (mode < 0 || mode > 2) {
qWarning("Invalid scale mode");
} else {
QSize original = m_reader->size();
newSize = original.scaled(newSize, (Qt::AspectRatioMode)mode);
}
}
m_reader->setScaledSize(newSize);
return self();
}
