Modularize and Doxygen decklist.cpp (#6099)

common/abstract_deck_list_card_node.cpp

@@ -0,0 +1,62 @@
+#include "abstract_deck_list_card_node.h"
+
+bool AbstractDecklistCardNode::compare(AbstractDecklistNode *other) const
+{
+    switch (sortMethod) {
+        case ByNumber:
+            return compareNumber(other);
+        case ByName:
+            return compareName(other);
+        default:
+            return false;
+    }
+}
+
+bool AbstractDecklistCardNode::compareNumber(AbstractDecklistNode *other) const
+{
+    auto *other2 = dynamic_cast<AbstractDecklistCardNode *>(other);
+    if (other2) {
+        int n1 = getNumber();
+        int n2 = other2->getNumber();
+        return (n1 != n2) ? (n1 > n2) : compareName(other);
+    } else {
+        return true;
+    }
+}
+
+bool AbstractDecklistCardNode::compareName(AbstractDecklistNode *other) const
+{
+    auto *other2 = dynamic_cast<AbstractDecklistCardNode *>(other);
+    if (other2) {
+        return (getName() > other2->getName());
+    } else {
+        return true;
+    }
+}
+
+bool AbstractDecklistCardNode::readElement(QXmlStreamReader *xml)
+{
+    while (!xml->atEnd()) {
+        xml->readNext();
+        if (xml->isEndElement() && xml->name().toString() == "card")
+            return false;
+    }
+    return true;
+}
+
+void AbstractDecklistCardNode::writeElement(QXmlStreamWriter *xml)
+{
+    xml->writeEmptyElement("card");
+    xml->writeAttribute("number", QString::number(getNumber()));
+    xml->writeAttribute("name", getName());
+
+    if (!getCardSetShortName().isEmpty()) {
+        xml->writeAttribute("setShortName", getCardSetShortName());
+    }
+    if (!getCardCollectorNumber().isEmpty()) {
+        xml->writeAttribute("collectorNumber", getCardCollectorNumber());
+    }
+    if (!getCardProviderId().isEmpty()) {
+        xml->writeAttribute("uuid", getCardProviderId());
+    }
+}