Cleaned up progress handling, implemented cancel function. Needs more testing

git-svn-id: http://svn.clifford.at/openscad/trunk@420 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 16 insertions, 0 deletions

diff --git a/src/progress.h b/src/progress.h
new file mode 100644
index 0000000..33c340c
--- /dev/null
+++ b/src/progress.h
@@ -0,0 +1,16 @@
+#ifndef PROGRESS_H_
+#define PROGRESS_H_
+
+// Reset to 0 in _prep() and increased for each Node instance in progress_prepare()
+extern int progress_report_count;
+
+extern void (*progress_report_f)(const class AbstractNode*, void*, int);
+extern void *progress_report_userdata;
+
+void progress_report_prep(AbstractNode *root, void (*f)(const class AbstractNode *node, void *userdata, int mark), void *userdata);
+void progress_report_fin();
+void progress_update(const AbstractNode *node, int mark);
+
+class ProgressCancelException { };
+
+#endif