Drag-and-drop from the list of images onto metadata viewer

GUI/mainwindow.cpp

@@ -413,6 +413,7 @@ MainWindow::MainWindow(
  graphicswidget_y->set_aliza(aliza);
  //
  studyview->init_(aliza);
+ sqtree->set_aliza(aliza);
  //
  histogramview = new HistogramView(
  this, static_cast<QObject*>(aliza), multi_frame, false);
@@ -1370,7 +1371,7 @@ void MainWindow::toggle_meta2()
  if (l.empty()) return;
  qApp->setOverrideCursor(QCursor(Qt::WaitCursor));
  const int t = (multiview_tab) ? 3 : 2;
- sqtree->set_list_of_files(l);
+ sqtree->set_list_of_files(l, true);
  sqtree->read_file(l.at(0), true);
  tabWidget->setCurrentIndex(t);
  qApp->restoreOverrideCursor();
@@ -2277,7 +2278,7 @@ void MainWindow::trigger_image_dicom_meta()
  }
  qApp->setOverrideCursor(QCursor(Qt::WaitCursor));
  qApp->processEvents();
- sqtree->set_list_of_files(l);
+ sqtree->set_list_of_files(l, true);
  sqtree->read_file(l.at(0), true);
  const int t = (multiview_tab) ? 3 : 2;
  tabWidget->setCurrentIndex(t);

GUI/studygraphicswidget.cpp

@@ -1273,7 +1273,8 @@ void StudyGraphicsWidget::dropEvent(QDropEvent * e)
 {
  int i{-1};
  const QMimeData * mimeData = e->mimeData();
- if (mimeData && mimeData->hasFormat("application/x-qabstractitemmodeldatalist")) // FIXME
+ // TODO distinguish other Qt apps?
+ if (mimeData && mimeData->hasFormat("application/x-qabstractitemmodeldatalist"))
  {
  QByteArray encoded = mimeData->data("application/x-qabstractitemmodeldatalist");
  QDataStream stream(&encoded, QIODevice::ReadOnly);
@@ -1298,10 +1299,10 @@ void StudyGraphicsWidget::dropEvent(QDropEvent * e)
  if (item)
  {
  i = item->get_id();
- break; // not really required, single selection
  }
  }
  }
+ break;
  }
  }
  if (i >= 0)

browser/sqtree.cpp

@@ -49,6 +49,7 @@
 #include "codecutils.h"
 #include "dicomutils.h"
 #include "commonutils.h"
+#include "aliza.h"
 #include <exception>
 
 namespace
@@ -2001,32 +2002,90 @@ void SQtree::dropEvent(QDropEvent * e)
  if (lock0) return;
  lock0 = true;
 #endif
- QStringList l;
- QList<QUrl> urls;
+ qApp->setOverrideCursor(QCursor(Qt::WaitCursor));
  const QMimeData * mimeData = e->mimeData();
- if (mimeData && mimeData->hasUrls())
+ if (mimeData)
  {
- urls = mimeData->urls();
- for (int i = 0; i < urls.size(); ++i)
+ if (mimeData->hasUrls())
  {
- l.push_back(urls.at(i).toLocalFile());
+ QStringList l;
+ const QList<QUrl> urls = mimeData->urls();
+ for (int i = 0; i < urls.size(); ++i)
+ {
+ l.push_back(urls.at(i).toLocalFile());
+ }
+ if (!l.empty())
+ {
+ list_of_files = QStringList(l.at(0));
+ horizontalSlider->blockSignals(true);
+ horizontalSlider->setMinimum(0);
+ horizontalSlider->setMaximum(0);
+ horizontalSlider->setValue(0);
+ horizontalSlider->hide();
+ horizontalSlider->blockSignals(false);
+ read_file(l.at(0), false);
+ }
+ else
+ {
+ clear_tree();
+ }
  }
- if (!l.empty())
+ // TODO distinguish other Qt apps?
+ else if (mimeData->hasFormat("application/x-qabstractitemmodeldatalist"))
  {
- list_of_files = QStringList(l.at(0));
- horizontalSlider->blockSignals(true);
- horizontalSlider->setMinimum(0);
- horizontalSlider->setMaximum(0);
- horizontalSlider->setValue(0);
- horizontalSlider->hide();
- horizontalSlider->blockSignals(false);
- read_file(l.at(0), false);
+ QStringList l;
+ QByteArray encoded = mimeData->data("application/x-qabstractitemmodeldatalist");
+ QDataStream stream(&encoded, QIODevice::ReadOnly);
+ while (!stream.atEnd())
+ {
+ int r{-1};
+ int c{-1};
+ QMap<int, QVariant> role;
+ stream >> r >> c >> role;
+ #if 0
+ std::cout << "row = " << r << ", column = " << c << std::endl;
+ #endif
+ (void)c;
+ (void)role;
+ if (aliza)
+ {
+ const ImagesBox * imagesbox = aliza->get_imagesbox();
+ if (imagesbox)
+ {
+ const ListWidgetItem2 * item = static_cast<const ListWidgetItem2*>(imagesbox->listWidget->item(r));
+ if (item)
+ {
+ const int i = item->get_id();
+ const ImageVariant * v = aliza->get_image(i);
+ if (v)
+ {
+ l = v->filenames;
+ }
+ }
+ }
+ }
+ break;
+ }
+ if (!l.empty())
+ {
+ set_list_of_files(l, false);
+ read_file(l.at(0), false);
+ }
+ else
+ {
+ clear_tree();
+ }
+ }
+ else
+ {
+ clear_tree();
  }
  }
  else
  {
  clear_tree();
  }
+ qApp->restoreOverrideCursor();
 #if (defined SQTREE_LOCK_TREE && SQTREE_LOCK_TREE==1)
  lock0 = false;
 #endif
@@ -2122,11 +2181,14 @@ void SQtree::open_file_and_series()
 #endif
 }
 
-void SQtree::set_list_of_files(const QStringList & l)
+void SQtree::set_list_of_files(const QStringList & l, const bool use_lock)
 {
 #if (defined SQTREE_LOCK_TREE && SQTREE_LOCK_TREE==1)
- if (lock0) return;
- lock0 = true;
+ if (use_lock)
+ {
+ if (lock0) return;
+ lock0 = true;
+ }
 #endif
  list_of_files = QStringList(l);
  const size_t x = list_of_files.size();
@@ -2138,7 +2200,10 @@ void SQtree::set_list_of_files(const QStringList & l)
  else horizontalSlider->hide();
  horizontalSlider->blockSignals(false);
 #if (defined SQTREE_LOCK_TREE && SQTREE_LOCK_TREE==1)
- lock0 = false;
+ if (use_lock)
+ {
+ lock0 = false;
+ }
 #endif
 }
 
@@ -2148,3 +2213,7 @@ void SQtree::file_from_slider(int x)
  read_file(list_of_files.at(x), true);
 }
 
+void SQtree::set_aliza(Aliza * a)
+{
+ aliza = a;
+}

browser/sqtree.h

@@ -19,6 +19,8 @@
 
 #define SQTREE_LOCK_TREE 1
 
+class Aliza;
+
 class SQtree: public QWidget, private Ui::SQtree
 {
 Q_OBJECT
@@ -28,7 +30,8 @@ Q_OBJECT
  void read_file(const QString&, const bool);
  void read_file_and_series(const QString&, const bool);
  void clear_tree();
- void set_list_of_files(const QStringList&);
+ void set_list_of_files(const QStringList&, const bool);
+ void set_aliza(Aliza*);
 
 public slots:
  void open_file();
@@ -64,6 +67,7 @@ private slots:
  QAction * copyAct;
  QAction * collapseAct;
  QAction * expandAct;
+ Aliza * aliza{};
  bool in_tabwidget;
  QStringList list_of_files;
 #if (defined SQTREE_LOCK_TREE && SQTREE_LOCK_TREE==1)