commit 3376db5e5b2588c5b4d0df74b5c9a3230ffbc78d
author Adam Reichold <adam.reichold@t-online.de> Sat Nov 24 18:55:26 2018 +0100
committer Albert Astals Cid <tsdgeos@yahoo.es> Wed Jan 09 08:47:08 2019 +0000
tree 4986096f317884676840caf5c49bfdb221e343f2
parent a2e42c88cee27497517bbab098a917bfd80d26f7

Port the Qt5 viewer demo to use the lazy outline item API (even if for loading all items up front for now).

qt5/demos/toc.cpp

diff --git a/qt5/demos/toc.cpp b/qt5/demos/toc.cpp
index 9916736..50d4d68 100644
--- a/qt5/demos/toc.cpp
+++ b/qt5/demos/toc.cpp
@@ -23,29 +23,28 @@
 #include <QtWidgets/QHeaderView>
 #include <QtWidgets/QTreeWidget>
 
-static void fillToc(const QDomNode &parent, QTreeWidget *tree, QTreeWidgetItem *parentItem)
+static void fillToc(const QVector<Poppler::OutlineItem> &items, QTreeWidget *tree, QTreeWidgetItem *parentItem)
 {
     QTreeWidgetItem *newitem = nullptr;
-    for (QDomNode node = parent.firstChild(); !node.isNull(); node = node.nextSibling()) {
-        QDomElement e = node.toElement();
+    for (const auto &item : items) {
+        if (item.isNull()) {
+            continue;
+        }
 
         if (!parentItem) {
             newitem = new QTreeWidgetItem(tree, newitem);
         } else {
             newitem = new QTreeWidgetItem(parentItem, newitem);
         }
-        newitem->setText(0, e.tagName());
+        newitem->setText(0, item.name());
 
-        bool isOpen = false;
-        if (e.hasAttribute(QStringLiteral("Open"))) {
-            isOpen = QVariant(e.attribute(QStringLiteral("Open"))).toBool();
-        }
-        if (isOpen) {
+        if (item.isOpen()) {
             tree->expandItem(newitem);
         }
 
-        if (e.hasChildNodes()) {
-            fillToc(node, tree, newitem);
+        const auto children = item.children();
+        if (!children.isEmpty()) {
+            fillToc(children, tree, newitem);
         }
     }
 }
@@ -68,9 +67,9 @@
 
 void TocDock::fillInfo()
 {
-    const QDomDocument *toc = document()->toc();
-    if (toc) {
-        fillToc(*toc, m_tree, nullptr);
+    const auto outline = document()->outline();
+    if (!outline.isEmpty()) {
+        fillToc(outline, m_tree, nullptr);
     } else {
         QTreeWidgetItem *item = new QTreeWidgetItem();
         item->setText(0, tr("No TOC"));