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获取图像信息的时候，直接从image对象获取

This commit is contained in:
luoliangyi 2022-08-29 11:11:17 +08:00
parent f2b79dd9cd
commit d82449b736
1 changed files with 20 additions and 37 deletions
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53
app/scanner/mainwindow.cpp
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@ -2168,41 +2168,18 @@ void MainWindow::on_act_imageInfo_triggered()
assert(!m_currFilePath.isEmpty());
QFileInfo info(m_currFilePath);
HGImgFmtLoadInfo imgInfo;
memset(&imgInfo, 0, sizeof(HGImgFmtLoadInfo));
HGPdfReader pdfReader = nullptr;
HGImgFmt_OpenPdfReader(getStdString(m_currFilePath).c_str(), &pdfReader);
if (nullptr != pdfReader)
HGImage image = NULL;
m_view->getImage(&image);
if (nullptr == image)
{
HGPdfPageInfo pageInfo = {0, 0};
HGImgFmt_GetPdfPageInfo(pdfReader, (HGUInt)m_multiIndex, &pageInfo);
HGUInt width = pageInfo.width;
HGUInt height = pageInfo.height;
if (width < 1600)
{
width = 1600;
height = pageInfo.height * width / pageInfo.width;
return;
}
imgInfo.width = width;
imgInfo.height = height;
imgInfo.bpp = pageInfo.bpp;
HGImageInfo imgInfo;
HGBase_GetImageInfo(image, &imgInfo);
HGImgFmt_ClosePdfReader(pdfReader);
}
else
{
HGImgFmtReader imgFmtReader = nullptr;
HGImgFmt_OpenImageReader(getStdString(m_currFilePath).c_str(), 0, &imgFmtReader);
if (nullptr != imgFmtReader)
{
HGImgFmt_LoadImageFromReader(imgFmtReader, (HGUInt)m_multiIndex, &imgInfo, 0, 0, nullptr);
HGImgFmt_CloseImageReader(imgFmtReader);
}
}
HGUInt xDpi, yDpi;
HGBase_GetImageDpi(image, &xDpi, &yDpi);
QStringList fileKeys;
fileKeys << tr("File name") << tr("File path") << tr("File size") << tr("Creation date/time") << tr("Modified date/time") << tr("Accessed date/time");
@ -2254,14 +2231,20 @@ void MainWindow::on_act_imageInfo_triggered()
imageValues.append(QString::number(imgInfo.width));//add image width
imageValues.append(QString::number(imgInfo.height));//add image height
int depth = (int)imgInfo.bpp;
int depth = 1;
if (HGBASE_IMGTYPE_GRAY == imgInfo.type)
depth = 8;
else if (HGBASE_IMGTYPE_BGR == imgInfo.type || HGBASE_IMGTYPE_RGB == imgInfo.type)
depth = 24;
else if (HGBASE_IMGTYPE_BGRA == imgInfo.type || HGBASE_IMGTYPE_RGBA == imgInfo.type)
depth = 32;
imageValues.append(QString::number(depth));//add image depth
imageValues.append(depth == 0 ? tr("None") : (depth == 1 ? tr("Mono") : (depth == 8 ? tr("Gray") : tr("Color"))));//add image color
QString dpi = QString::number(imgInfo.xDpi) + " x " + QString::number(imgInfo.yDpi);
QString dpi = QString::number(xDpi) + " x " + QString::number(yDpi);
imageValues.append(dpi);//add image dpi
double cm_x = (0 == imgInfo.xDpi) ? 0 : 2.54 * imgInfo.width / imgInfo.xDpi;
double cm_y = (0 == imgInfo.yDpi) ? 0 : 2.54 * imgInfo.height / imgInfo.yDpi;
double cm_x = (0 == xDpi) ? 0 : 2.54 * imgInfo.width / xDpi;
double cm_y = (0 == yDpi) ? 0 : 2.54 * imgInfo.height / yDpi;
QString cm_printsize = QString::number(cm_x, 'f', 2) + " x " + QString::number(cm_y, 'f', 2) + " cm";
double inch_x = cm_x / 2.54;
double inch_y = cm_y / 2.54;