makro

sources/ElementsCollection/elementstreeview.cpp

@@ -22,7 +22,12 @@
 #include "../qeticons.h"
 #include "elementcollectionitem.h"
 #include "elementslocation.h"
-
+#include "../qetproject.h"
+#include "../diagram.h"
+#include "xmlelementcollection.h"
+#include "../nameslist.h"
+#include <QPainter>
+#include <QScopedPointer>
 #include <QDrag>
 #include <QStandardItemModel>
 
@@ -95,9 +100,107 @@ void ElementsTreeView::startElementDrag(const ElementsLocation &location)
 	if (location.isDirectory())
 	{
 		mime_data->setData("application/x-qet-category-uri",
-				   location_str.toLatin1());
+						   location_str.toLatin1());
 		drag->setPixmap(QET::Icons::Folder.pixmap(22, 22));
 	}
+	else if (location.fileName().endsWith(".qetmak"))
+	{
+		mime_data->setData("application/x-qet-element-uri", location_str.toLatin1());
+
+		QPixmap macro_pixmap;
+
+		// --- MINI-RENDERER FÜR DAS MAKRO-VORSCHAUBILD ---
+		QFile file(location.fileSystemPath());
+		if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+			QDomDocument macro_doc;
+			if (macro_doc.setContent(&file)) {
+				QDomElement root = macro_doc.documentElement();
+				if (root.tagName() == "qet_macro") {
+
+					// 1. Unsichtbares Dummy-Projekt erstellen
+					QScopedPointer<QETProject> dummy_project(new QETProject());
+
+					// 2. Bauteile in das Dummy-Projekt laden (wie beim echten Drop)
+					QDomElement collection_node = root.firstChildElement("collection");
+					if (!collection_node.isNull()) {
+						QDomNodeList elements = collection_node.elementsByTagName("element");
+						for (int i = 0; i < elements.count(); ++i) {
+							QDomElement elmt_node = elements.at(i).toElement();
+							QString path = elmt_node.attribute("path");
+							QDomElement definition = elmt_node.firstChildElement("definition");
+							if (!path.isEmpty() && !definition.isNull()) {
+								int last_slash = path.lastIndexOf('/');
+								QString dir_path = (last_slash != -1) ? path.left(last_slash) : "";
+								QString file_name = (last_slash != -1) ? path.mid(last_slash + 1) : path;
+
+								if (!dir_path.isEmpty()) {
+									#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+									QStringList parts = dir_path.split('/', QString::SkipEmptyParts);
+									#else
+									QStringList parts = dir_path.split('/', Qt::SkipEmptyParts);
+									#endif
+									QString current_path = "";
+									for (const QString &part : parts) {
+										QString parent_path = current_path;
+										if (!current_path.isEmpty()) current_path += "/";
+										current_path += part;
+										if (current_path == "import") continue;
+										NamesList empty_names;
+										dummy_project->embeddedElementCollection()->createDir(parent_path, part, empty_names);
+									}
+								}
+								dummy_project->embeddedElementCollection()->addElementDefinition(dir_path, file_name, definition);
+							}
+						}
+					}
+
+					Diagram *dummy_diagram = dummy_project->addNewDiagram();
+
+					// 4. Makro auf dem unsichtbaren Blatt zeichnen
+					QDomElement diagram_content_node = root.firstChildElement("diagram_content");
+					QDomElement diagram_node = diagram_content_node.firstChildElement("diagram");
+					if (!diagram_node.isNull()) {
+						QDomNodeList instances = diagram_node.elementsByTagName("element");
+						for (int i = 0; i < instances.count(); ++i) {
+							QDomElement inst = instances.at(i).toElement();
+							QString type = inst.attribute("type");
+							if (type.startsWith("macro://")) {
+								inst.setAttribute("type", type.replace("macro://", "embed://"));
+							}
+						}
+
+						dummy_diagram->fromXml(diagram_node, QPointF(0, 0), false, nullptr);
+						dummy_diagram->clearSelection();
+
+						// 5. "Screenshot" (Pixmap) von den gezeichneten Elementen machen
+						QRectF scene_rect = dummy_diagram->itemsBoundingRect();
+						if (!scene_rect.isEmpty()) {
+							scene_rect.adjust(-5, -5, 5, 5); // Kleiner Rand
+							macro_pixmap = QPixmap(scene_rect.size().toSize());
+							macro_pixmap.fill(Qt::transparent); // Transparenter Hintergrund
+
+							QPainter painter(&macro_pixmap);
+							painter.setRenderHint(QPainter::Antialiasing);
+							dummy_diagram->render(&painter, macro_pixmap.rect(), scene_rect);
+						}
+					}
+				}
+			}
+		}
+
+		if (macro_pixmap.isNull()) {
+			macro_pixmap = QET::Icons::Project.pixmap(32, 32);
+		}
+
+		// Bild verkleinern, falls das Makro gigantisch groß ist
+		if (macro_pixmap.width() > MAX_DND_PIXMAP_WIDTH || macro_pixmap.height() > MAX_DND_PIXMAP_HEIGHT) {
+			macro_pixmap = macro_pixmap.scaled(MAX_DND_PIXMAP_WIDTH, MAX_DND_PIXMAP_HEIGHT, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+		}
+
+		drag->setPixmap(macro_pixmap);
+		// Bild zentriert an die Maus hängen
+		drag->setHotSpot(QPoint(macro_pixmap.width() / 2, macro_pixmap.height() / 2));
+	}
 	else if (location.isElement())
 	{
 		mime_data->setData("application/x-qet-element-uri",