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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "precompiled.h"
#include "../../Include/Rocket/Core/Variant.h"
namespace Rocket {
namespace Core {
Variant::Variant() : type(NONE)
{
// Make sure our object size assumptions fit inside the static buffer
ROCKET_STATIC_ASSERT(sizeof(Colourb) <= LOCAL_DATA_SIZE, LOCAL_DATA_TOO_SMALL_FOR_Colourb);
ROCKET_STATIC_ASSERT(sizeof(Colourf) <= LOCAL_DATA_SIZE, LOCAL_DATA_TOO_SMALL_FOR_Colourf);
ROCKET_STATIC_ASSERT(sizeof(String) <= LOCAL_DATA_SIZE, LOCAL_DATA_TOO_SMALL_FOR_String);
}
Variant::Variant(const Variant& copy) : type(NONE) { Set(copy); }
Variant::~Variant() { Clear(); }
void Variant::Clear()
{
// Free any allocated types.
switch (type) {
case STRING: {
// Clean up the string.
String* string = (String*)&data;
string->~String();
break;
}
case VECTOR2: {
auto d = (Vector2f*)&data;
d->~Vector2f();
break;
}
case COLOURF: {
auto d = (Colourf*)&data;
d->~Colourf();
break;
}
case COLOURB: {
auto d = (Colourb*)&data;
d->~Colourb();
break;
}
default:
break;
}
type = NONE;
}
Variant::Type Variant::GetType() const { return type; }
//////////////////////////////////////////////////
// Set methods
//////////////////////////////////////////////////
#define SET_VARIANT(type) Clear(); new (std::addressof(data))(type)(value)
void Variant::Set(const Variant& copy)
{
switch (copy.type) {
case STRING: {
// Create the string
Set(*(String*)std::addressof(copy.data));
break;
}
case VECTOR2: {
Set(*(Vector2f*)std::addressof(copy.data));
break;
}
case COLOURF: {
Set(*(Colourf*)std::addressof(copy.data));
break;
}
case COLOURB: {
Set(*(Colourb*)std::addressof(copy.data));
break;
}
default:
Clear();
memcpy(std::addressof(data), std::addressof(copy.data), LOCAL_DATA_SIZE);
break;
}
type = copy.type;
}
void Variant::Set(const byte value)
{
SET_VARIANT(byte);
type = BYTE;
}
void Variant::Set(const char value)
{
SET_VARIANT(char);
type = CHAR;
}
void Variant::Set(const float value)
{
SET_VARIANT(float);
type = FLOAT;
}
void Variant::Set(const int value)
{
SET_VARIANT(int);
type = INT;
}
void Variant::Set(const String& value)
{
if (type == STRING) {
((String*)&data)->Assign(value);
} else {
SET_VARIANT(String);
}
type = STRING;
}
void Variant::Set(const word value)
{
SET_VARIANT(word);
type = WORD;
}
void Variant::Set(const char* value) { Set(String(value)); }
void Variant::Set(void* value)
{
SET_VARIANT(void*);
type = VOIDPTR;
}
void Variant::Set(const Vector2f& value)
{
SET_VARIANT(Vector2f);
type = VECTOR2;
}
void Variant::Set(const Colourf& value)
{
SET_VARIANT(Colourf);
type = COLOURF;
}
void Variant::Set(const Colourb& value)
{
SET_VARIANT(Colourb);
type = COLOURB;
}
void Variant::Set(ScriptInterface* value)
{
SET_VARIANT(ScriptInterface*);
type = SCRIPTINTERFACE;
}
Variant& Variant::operator=(const Variant& copy)
{
Set(copy);
return *this;
}
} // namespace Core
} // namespace Rocket
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