Aegisub/aegisub/src/variable_data.cpp

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// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
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//
// $Id$
/// @file variable_data.cpp
/// @brief A variant-type implementation
/// @ingroup utility subs_storage
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////////////
// Includes
#include "config.h"
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#include "ass_dialogue.h"
#include "ass_style.h"
#include "utils.h"
#include "variable_data.h"
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/// @brief Constructor
VariableData::VariableData() {
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type = VARDATA_NONE;
value = NULL;
}
/// @brief Destructor
VariableData::~VariableData() {
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DeleteValue ();
}
/// @brief Deletes the stored value
/// @return
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void VariableData::DeleteValue () {
if (!value) return;
if (type == VARDATA_NONE) return;
switch (type) {
case VARDATA_INT: delete value_int; break;
case VARDATA_FLOAT: delete value_float; break;
case VARDATA_TEXT: delete value_text; break;
case VARDATA_BOOL: delete value_bool; break;
case VARDATA_COLOUR: delete value_colour; break;
case VARDATA_BLOCK: delete *value_block; delete value_block; break;
default: break;
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}
type = VARDATA_NONE;
value = NULL;
}
template<class T> static inline VariableDataType get_type();
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template<> inline VariableDataType get_type<int>() {
return VARDATA_INT;
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}
template<> inline VariableDataType get_type<float>() {
return VARDATA_FLOAT;
}
template<> inline VariableDataType get_type<double>() {
return VARDATA_FLOAT;
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}
template<> inline VariableDataType get_type<bool>() {
return VARDATA_BOOL;
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}
template<> inline VariableDataType get_type<wxString>() {
return VARDATA_TEXT;
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}
template<> inline VariableDataType get_type<wxColour>() {
return VARDATA_COLOUR;
}
template<> inline VariableDataType get_type<AssDialogueBlockOverride *>() {
return VARDATA_BLOCK;
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}
template<class T>
void VariableData::Set(T param) {
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DeleteValue();
type = get_type<T>();
value = new T(param);
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}
template void VariableData::Set<int>(int param);
template void VariableData::Set<float>(float param);
template void VariableData::Set<double>(double param);
template void VariableData::Set<bool>(bool param);
template void VariableData::Set(wxString param);
template void VariableData::Set<wxColour>(wxColour param);
template void VariableData::Set<AssDialogueBlockOverride *>(AssDialogueBlockOverride * param);
/// @brief Resets a value with a string, preserving current type
/// @param value
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void VariableData::ResetWith(wxString value) {
switch (type) {
case VARDATA_INT: {
long temp = 0;
value.ToLong(&temp);
Set<int>(temp);
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break;
}
case VARDATA_FLOAT: {
double temp = 0;
value.ToDouble(&temp);
Set(temp);
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break;
}
case VARDATA_BOOL:
if (value == _T("1")) Set(true);
else Set(false);
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break;
case VARDATA_COLOUR: {
long r=0,g=0,b=0;
value.Mid(1,2).ToLong(&r,16);
value.Mid(3,2).ToLong(&g,16);
value.Mid(5,2).ToLong(&b,16);
Set(wxColour(r,g,b));
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break;
}
default:
Set(value);
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break;
}
}
/// @brief Reads as an int
/// @return
template<> int VariableData::Get<int>() const {
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if (!value) throw _T("Null parameter");
if (type == VARDATA_BOOL) return !!(*value_bool);
if (type == VARDATA_INT) return *value_int;
if (type == VARDATA_FLOAT) return (int)(*value_float);
if (type == VARDATA_TEXT) return 0;
throw _T("Wrong parameter type, should be int");
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}
/// @brief Reads as a float
/// @return
template<> float VariableData::Get<float>() const {
if (!value) throw _T("Null parameter");
if (type == VARDATA_FLOAT) return (float)*value_float;
if (type == VARDATA_INT) return (float)(*value_int);
if (type == VARDATA_TEXT) return 0.0f;
throw _T("Wrong parameter type, should be float");
}
template<> double VariableData::Get<double>() const {
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if (!value) throw _T("Null parameter");
if (type == VARDATA_FLOAT) return *value_float;
if (type == VARDATA_INT) return (float)(*value_int);
if (type == VARDATA_TEXT) return 0.0;
throw _T("Wrong parameter type, should be float");
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}
/// @brief Reads as a bool
/// @return
template<> bool VariableData::Get<bool>() const {
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if (!value) throw _T("Null parameter");
if (type == VARDATA_BOOL) return *value_bool;
if (type == VARDATA_INT) return ((*value_int)!=0);
if (type == VARDATA_FLOAT) return ((*value_float)!=0);
if (type == VARDATA_TEXT) return false;
throw _T("Wrong parameter type, should be bool");
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}
/// @brief Reads as a colour
/// @return
template<> wxColour VariableData::Get<wxColour>() const {
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if (!value) throw _T("Null parameter");
if (type == VARDATA_COLOUR) return *value_colour;
else if (type == VARDATA_TEXT) {
AssColor color;
color.Parse(*value_text);
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return color.GetWXColor();
}
else throw _T("Wrong parameter type, should be colour");
}
/// @brief Reads as a block
/// @return
template<> AssDialogueBlockOverride *VariableData::Get<AssDialogueBlockOverride *>() const {
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if (!value) throw _T("Null parameter");
if (type != VARDATA_BLOCK) throw _T("Wrong parameter type, should be block");
return *value_block;
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}
/// @brief Reads as a string
/// @return
template<> wxString VariableData::Get<wxString>() const {
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if (!value) throw _T("Null parameter");
if (type != VARDATA_TEXT) {
if (type == VARDATA_INT) return wxString::Format("%i",*value_int);
else if (type == VARDATA_FLOAT) return wxString::Format("%g",*value_float);
else if (type == VARDATA_COLOUR) return wxString::Format("#%02X%02X%02X",value_colour->Red(),value_colour->Green(),value_colour->Blue());
else if (type == VARDATA_BOOL) return *value_bool ? "1" : "0";
else if (type == VARDATA_BLOCK) return (*value_block)->GetText();
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else throw _T("Wrong parameter type, should be text");
}
return *value_text;
}
/// @brief Gets type
/// @return
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VariableDataType VariableData::GetType() const {
return type;
}
/// @brief Copy
/// @param param
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void VariableData::operator= (const VariableData &param) {
switch(param.GetType()) {
case VARDATA_INT: Set(param.Get<int>()); break;
case VARDATA_FLOAT: Set(param.Get<double>()); break;
case VARDATA_TEXT: Set(param.Get<wxString>()); break;
case VARDATA_BOOL: Set(param.Get<bool>()); break;
case VARDATA_COLOUR: Set(param.Get<wxColor>()); break;
case VARDATA_BLOCK: Set(param.Get<AssDialogueBlockOverride*>()); break;
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default: DeleteValue();
}
}