GH-1876 replace ColumnResizer with a newer, BSD-3 licensed version

Also, keep licensing info only in one file.
The COPYING.md is now a resource and rendered to HTML in the About dialog.

1 files changed, 76 insertions, 0 deletions

diff --git a/application/HoeDown.h b/application/HoeDown.h
new file mode 100644
index 00000000..70a9e5cd
--- /dev/null
+++ b/application/HoeDown.h
@@ -0,0 +1,76 @@
+/* Copyright 2013-2017 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <hoedown/html.h>
+#include <hoedown/document.h>
+#include <QString>
+#include <QByteArray>
+
+/**
+ * hoedown wrapper, because dealing with resource lifetime in C is stupid
+ */
+class HoeDown
+{
+public:
+	class buffer
+	{
+	public:
+		buffer(size_t unit = 4096)
+		{
+			buf = hoedown_buffer_new(unit);
+		}
+		~buffer()
+		{
+			hoedown_buffer_free(buf);
+		}
+		const char * cstr()
+		{
+			return hoedown_buffer_cstr(buf);
+		}
+		void put(QByteArray input)
+		{
+			hoedown_buffer_put(buf, (uint8_t *) input.data(), input.size());
+		}
+		const uint8_t * data() const
+		{
+			return buf->data;
+		}
+		size_t size() const
+		{
+			return buf->size;
+		}
+		hoedown_buffer * buf;
+	} ib, ob;
+	HoeDown()
+	{
+		renderer = hoedown_html_renderer_new((hoedown_html_flags) 0,0);
+		document = hoedown_document_new(renderer, (hoedown_extensions) 0, 8);
+	}
+	~HoeDown()
+	{
+		hoedown_document_free(document);
+		hoedown_html_renderer_free(renderer);
+	}
+	QString process(QByteArray input)
+	{
+		ib.put(input);
+		hoedown_document_render(document, ob.buf, ib.data(), ib.size());
+		return ob.cstr();
+	}
+private:
+	hoedown_document * document;
+	hoedown_renderer * renderer;
+};