comparison widgets/TransformFinder.cpp @ 417:fbf9f53cf979

* Annoyingly not-really-working twist on things

 #include <QLabel>
 #include <QDialogButtonBox>
 #include <QScrollArea>
 
 TransformFinder::TransformFinder(QWidget *parent) :
-    QDialog(parent)
+    QDialog(parent),
+    m_resultsFrame(0),
+    m_resultsLayout(0)
 {
     setWindowTitle(tr("Find a Transform"));
     
     QGridLayout *mainGrid = new QGridLayout;
     setLayout(mainGrid);

                       << k->second.toStdString() << " ";
         }
         std::cerr << "(" << j->score << ")" << std::endl;
     }
 */
-    QFrame *resultsFrame = new QFrame;
-    QVBoxLayout *resultsLayout = new QVBoxLayout;
-    resultsFrame->setLayout(resultsLayout);
+
+    if (!m_resultsLayout) {
+        std::cerr << "creating frame & layout" << std::endl;
+        m_resultsFrame = new QWidget;
+//        resultsFrame->setFrameStyle(QFrame::Sunken | QFrame::Box);
+        m_resultsLayout = new QVBoxLayout;
+        m_resultsFrame->setLayout(m_resultsLayout);
+        m_resultsScroll->setWidget(m_resultsFrame);
+        m_resultsFrame->show();
+    }
 
     i = 0;
     int maxResults = 40;
+    int height = 0;
+    int width = 0;
 
     for (std::set<TransformFactory::Match>::const_iterator j = sorted.end();
          j != sorted.begin(); ) {
         --j;
+
         QString labelText;
         TransformDescription desc =
             TransformFactory::getInstance()->getTransformDescription(j->transform);
         labelText += tr("%2<br><small>").arg(desc.name);
         labelText += "...";

              k != j->fragments.end(); ++k) {
             labelText += k->second;
             labelText += "... ";
         }
         labelText += tr("</small>");
-        resultsLayout->addWidget(new QLabel(labelText));
+
+        if (i >= m_labels.size()) {
+            QLabel *label = new QLabel(m_resultsFrame);
+            m_resultsLayout->addWidget(label);
+            m_labels.push_back(label);
+        }
+        m_labels[i]->setText(labelText);
+        QSize sh = m_labels[i]->sizeHint();
+        std::cerr << "size hint for text \"" << labelText.toStdString() << "\" has height " << sh.height() << std::endl;
+        height += sh.height();
+        if (sh.width() > width) width = sh.width();
+        m_labels[i]->show();
+
         if (++i == maxResults) break;
     }
 
-    QWidget *oldWidget = m_resultsScroll->takeWidget();
-    m_resultsScroll->setWidget(resultsFrame);
-    delete oldWidget;
+    std::cerr << "m_labels.size() = " << m_labels.size() << ", i = " << i << ", height = " << height << std::endl;
+
+    while (i < m_labels.size()) m_labels[i++]->hide();
+
+    m_resultsFrame->resize(height, width);
 }
 
 TransformId
 TransformFinder::getTransform() const
 {