//show page
void FastViewWidget::showPage(int page)
{
if(page > 0 && page < doc->numPages()+1)
{
if (page != -1 ){
currentPage = page - 1;
emit pageChanged(page);
QImage image = doc->page(currentPage) ->renderToImage(scaleFactor * physicalDpiX(), scaleFactor * physicalDpiY());
double ratio = (double)image.width() /(double)image.height();
//compute size
int h = height();
int w = (int)(ratio *(double) h);
if(h != image.height())
image = image.scaled(w,h,Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
// set page on to widget
current = new QLabel(this);
current->setAlignment(Qt::AlignCenter);
current->setPixmap(QPixmap::fromImage(image));
setWidget(current);
updateGeometry();
}
}
}
void Viewer::previousPageClicked() {
if (currentPage==0) return;
currentPage--;
pdfPage = document->page(currentPage);
image = pdfPage->renderToImage(scaleFact*physicalDpiX(),scaleFact*physicalDpiY());
myItem->setPixmap(QPixmap::fromImage(image));
}
void ExportWizard::saveSvg()
{
if (m_ui->svgFilePath->text().isEmpty()) {
QMessageBox::warning(this, tr("No file selected !"), tr("You need to choose a file path for saving."));
return;
}
QString svgFilePath = m_ui->svgFilePath->text();
// get the rendering size
QRect svgRect(m_canvas->sceneRect().toRect());
// create the SVG writer
QSvgGenerator generator;
generator.setFileName(svgFilePath);
generator.setSize(svgRect.size());
generator.setResolution(physicalDpiX());
generator.setViewBox(svgRect);
generator.setTitle(m_canvas->titleText());
generator.setDescription(tr("Created with %1").arg(QCoreApplication::applicationName() + " " + QCoreApplication::applicationVersion()));
// paint over the writer
QPainter painter(&generator);
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform, true);
m_canvas->renderVisible(&painter, svgRect, svgRect, Qt::IgnoreAspectRatio, !m_ui->svgAsIsBox->isChecked());
painter.end();
}
void Viewer::loadImageFile(QString exoFile)
{
if (exoFile.isEmpty()) {
image=QImage();
myItem->setPixmap(QPixmap::fromImage(image));
return;
}
QString pdfFile;
if (QFileInfo(exoFile).suffix() == "pdf") pdfFile = exoFile;
else {
pdfFile = QFileInfo(exoFile).path() + QDir::separator()
+ QFileInfo(exoFile).baseName()+"-preview.pdf";
}
if (QFileInfo(pdfFile).exists()) {
document = Poppler::Document::load(pdfFile);
document->setRenderHint(Poppler::Document::Antialiasing,true);
document->setRenderHint(Poppler::Document::TextAntialiasing,true);
document->setRenderHint(Poppler::Document::TextHinting,true);
document->setRenderHint(Poppler::Document::TextSlightHinting,true);
numPages=document->numPages();
currentPage=0;
updatePagesButtons();
pdfPage = document->page(currentPage);
image = pdfPage->renderToImage(scaleFact*physicalDpiX(),scaleFact*physicalDpiY());
myItem->setPixmap(QPixmap::fromImage(image));
}
else {
image=QImage();
myItem->setPixmap(QPixmap::fromImage(image));
return;
}
}
// default: OutputFormat format = pdf, Measure m = cm,
// ResolutionRatio rr = in_px
ExportDialog::ExportDialog(QWidget* parent, Exportable *expo, double width, double height,
OutputFormat format, Measure m, ResolutionRatio rr) : QDialog(parent),
mExp(expo), mWidth(width), mHeight(height)
{
setupUi(this);
mRes = physicalDpiX();
mWidth /= mRes;
mHeight /= mRes;
if(m==cm) {
mWidth *= 2.54;
mHeight *= 2.54;
}
if(rr==cm_px)
mRes /= 2.54;
outputFormatComboBox->setCurrentIndex(format);
measureComboBox->setCurrentIndex(m);
resRatioComboBox->setCurrentIndex(rr);
resSpinBox->setValue(mRes);
widthSpinBox->setValue(mWidth);
heightSpinBox->setValue(mHeight);
}
void ReportView::scaleView(qreal factor)
{
qreal f = matrix().scale(factor, factor).mapRect(QRectF(0, 0, 1, 1)).width();
if (f < 0.07 || f > 100)
return;
Report *report = (Report*)scene();
int dpiX = report ? report->dpiX() : 96;
int dpiY = report ? report->dpiY() : 96;
QTransform oldTransform = transform();
resetTransform();
translate(oldTransform.dx(), oldTransform.dy());
scale(factor * physicalDpiX() / dpiX, factor * physicalDpiY() / dpiY);;
}
void Viewer::onButtonOutClicked() {
if (image.width()==0) return;
scaleFact-=0.1;
image = pdfPage->renderToImage(scaleFact*physicalDpiX(),scaleFact*physicalDpiY());
myItem->setPixmap(QPixmap::fromImage(image));
}
qreal Ruler::physicalDpi() const
{
return (m_orientation == Qt::Horizontal) ? physicalDpiX() : physicalDpiY();
}
