Imported Upstream version 0.13.2+dsfg1

libobs/util/util.hpp

@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2013 Hugh Bailey <obs.jim@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* Useful C++ classes/bindings for util data and pointers */
+
+#pragma once
+
+#include <string.h>
+#include <stdarg.h>
+
+#include "bmem.h"
+#include "config-file.h"
+#include "text-lookup.h"
+
+/* RAII wrappers */
+
+template<typename T> class BPtr {
+	T *ptr;
+
+	BPtr(BPtr const&) = delete;
+
+	BPtr &operator=(BPtr const&) = delete;
+
+public:
+	inline BPtr(T *p=nullptr) : ptr(p)         {}
+	inline BPtr(BPtr &&other) : ptr(other.ptr) {other.ptr = nullptr;}
+	inline ~BPtr()                             {bfree(ptr);}
+
+	inline T *operator=(T *p)   {bfree(ptr); ptr = p; return p;}
+	inline operator T*()        {return ptr;}
+	inline T **operator&()      {bfree(ptr); ptr = nullptr; return &ptr;}
+
+	inline bool operator!()     {return ptr == NULL;}
+	inline bool operator==(T p) {return ptr == p;}
+	inline bool operator!=(T p) {return ptr != p;}
+};
+
+class ConfigFile {
+	config_t *config;
+
+	ConfigFile(ConfigFile const&) = delete;
+	ConfigFile &operator=(ConfigFile const&) = delete;
+
+public:
+	inline ConfigFile() : config(NULL) {}
+	inline ConfigFile(ConfigFile &&other) : config(other.config)
+	{
+		other.config = nullptr;
+	}
+	inline ~ConfigFile()
+	{
+		config_close(config);
+	}
+
+	inline bool Create(const char *file)
+	{
+		Close();
+		config = config_create(file);
+		return config != NULL;
+	}
+
+	inline void Swap(ConfigFile &other)
+	{
+		config_t *newConfig = other.config;
+		other.config = config;
+		config = newConfig;
+	}
+
+	inline int Open(const char *file, config_open_type openType)
+	{
+		Close();
+		return config_open(&config, file, openType);
+	}
+
+	inline int Save()
+	{
+		return config_save(config);
+	}
+
+	inline int SaveSafe(const char *temp_ext,
+			const char *backup_ext = nullptr)
+	{
+		return config_save_safe(config, temp_ext, backup_ext);
+	}
+
+	inline void Close()
+	{
+		config_close(config);
+		config = NULL;
+	}
+
+	inline operator config_t*() const {return config;}
+};
+
+class TextLookup {
+	lookup_t *lookup;
+
+	TextLookup(TextLookup const&) = delete;
+
+	TextLookup &operator=(TextLookup const&) = delete;
+
+public:
+	inline TextLookup(lookup_t *lookup=nullptr) : lookup(lookup) {}
+	inline TextLookup(TextLookup &&other) : lookup(other.lookup)
+	{
+		other.lookup = nullptr;
+	}
+	inline ~TextLookup() {text_lookup_destroy(lookup);}
+
+	inline TextLookup& operator=(lookup_t *val)
+	{
+		text_lookup_destroy(lookup);
+		lookup = val;
+		return *this;
+	}
+
+	inline operator lookup_t*() const {return lookup;}
+
+	inline const char *GetString(const char *lookupVal) const
+	{
+		const char *out;
+		if (!text_lookup_getstr(lookup, lookupVal, &out))
+			return lookupVal;
+
+		return out;
+	}
+};