Perform CGAL evaluation in a separate thread. First steps towards better GUI responsiveness and parallelization

1 files changed, 40 insertions, 0 deletions

diff --git a/src/cgalworker.cc b/src/cgalworker.cc
new file mode 100644
index 0000000..30bb1fe
--- /dev/null
+++ b/src/cgalworker.cc
@@ -0,0 +1,40 @@
+#include "cgalworker.h"
+#include <QThread>
+
+#include "Tree.h"
+#include "CGALEvaluator.h"
+#include "progress.h"
+#include "printutils.h"
+
+CGALWorker::CGALWorker()
+{
+	this->thread = new QThread();
+	connect(this->thread, SIGNAL(started()), this, SLOT(work()));
+	moveToThread(this->thread);
+}
+
+CGALWorker::~CGALWorker()
+{
+	delete this->thread;
+}
+
+void CGALWorker::start(const Tree &tree)
+{
+	this->tree = &tree;
+	this->thread->start();
+}
+
+void CGALWorker::work()
+{
+	CGAL_Nef_polyhedron *root_N = NULL;
+	try {
+		CGALEvaluator evaluator(*this->tree);
+		root_N = new CGAL_Nef_polyhedron(evaluator.evaluateCGALMesh(*this->tree->root()));
+	}
+	catch (ProgressCancelException e) {
+		PRINT("Rendering cancelled.");
+	}
+
+	emit done(root_N);
+	thread->quit();
+}