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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file script_text.cpp Implementation of ScriptText. */
#include "../../stdafx.h"
#include "../../string_func.h"
#include "../../strings_func.h"
#include "script_text.hpp"
#include "../../table/control_codes.h"
#include "table/strings.h"
#include "../../safeguards.h"
ScriptText::ScriptText(HSQUIRRELVM vm) :
ZeroedMemoryAllocator()
{
int nparam = sq_gettop(vm) - 1;
if (nparam < 1) {
throw sq_throwerror(vm, _SC("You need to pass at least a StringID to the constructor"));
}
/* First resolve the StringID. */
SQInteger sqstring;
if (SQ_FAILED(sq_getinteger(vm, 2, &sqstring))) {
throw sq_throwerror(vm, _SC("First argument must be a valid StringID"));
}
this->string = sqstring;
/* The rest of the parameters must be arguments. */
for (int i = 0; i < nparam - 1; i++) {
/* Push the parameter to the top of the stack. */
sq_push(vm, i + 3);
if (SQ_FAILED(this->_SetParam(i, vm))) {
this->~ScriptText();
throw sq_throwerror(vm, _SC("Invalid parameter"));
}
/* Pop the parameter again. */
sq_pop(vm, 1);
}
}
ScriptText::~ScriptText()
{
for (int i = 0; i < SCRIPT_TEXT_MAX_PARAMETERS; i++) {
free(this->params[i]);
if (this->paramt[i] != NULL) this->paramt[i]->Release();
}
}
SQInteger ScriptText::_SetParam(int parameter, HSQUIRRELVM vm)
{
if (parameter >= SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
free(this->params[parameter]);
if (this->paramt[parameter] != NULL) this->paramt[parameter]->Release();
this->parami[parameter] = 0;
this->params[parameter] = NULL;
this->paramt[parameter] = NULL;
switch (sq_gettype(vm, -1)) {
case OT_STRING: {
const SQChar *value;
sq_getstring(vm, -1, &value);
this->params[parameter] = strdup(SQ2OTTD(value));
ValidateString(this->params[parameter]);
break;
}
case OT_INTEGER: {
SQInteger value;
sq_getinteger(vm, -1, &value);
this->parami[parameter] = value;
break;
}
case OT_INSTANCE: {
SQUserPointer real_instance = NULL;
HSQOBJECT instance;
sq_getstackobj(vm, -1, &instance);
/* Validate if it is a GSText instance */
sq_pushroottable(vm);
sq_pushstring(vm, _SC("GSText"), -1);
sq_get(vm, -2);
sq_pushobject(vm, instance);
if (sq_instanceof(vm) != SQTrue) return SQ_ERROR;
sq_pop(vm, 3);
/* Get the 'real' instance of this class */
sq_getinstanceup(vm, -1, &real_instance, 0);
if (real_instance == NULL) return SQ_ERROR;
ScriptText *value = static_cast<ScriptText *>(real_instance);
value->AddRef();
this->paramt[parameter] = value;
break;
}
default: return SQ_ERROR;
}
if (this->paramc <= parameter) this->paramc = parameter + 1;
return 0;
}
SQInteger ScriptText::SetParam(HSQUIRRELVM vm)
{
if (sq_gettype(vm, 2) != OT_INTEGER) return SQ_ERROR;
SQInteger k;
sq_getinteger(vm, 2, &k);
if (k > SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
if (k < 1) return SQ_ERROR;
k--;
return this->_SetParam(k, vm);
}
SQInteger ScriptText::AddParam(HSQUIRRELVM vm)
{
SQInteger res;
res = this->_SetParam(this->paramc, vm);
if (res != 0) return res;
/* Push our own instance back on top of the stack */
sq_push(vm, 1);
return 1;
}
SQInteger ScriptText::_set(HSQUIRRELVM vm)
{
int32 k;
if (sq_gettype(vm, 2) == OT_STRING) {
const SQChar *key;
sq_getstring(vm, 2, &key);
const char *key_string = SQ2OTTD(key);
ValidateString(key_string);
if (strncmp(key_string, "param_", 6) != 0 || strlen(key_string) > 8) return SQ_ERROR;
k = atoi(key_string + 6);
} else if (sq_gettype(vm, 2) == OT_INTEGER) {
SQInteger key;
sq_getinteger(vm, 2, &key);
k = (int32)key;
} else {
return SQ_ERROR;
}
if (k > SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
if (k < 1) return SQ_ERROR;
k--;
return this->_SetParam(k, vm);
}
const char *ScriptText::GetEncodedText()
{
static char buf[1024];
int param_count = 0;
this->_GetEncodedText(buf, lastof(buf), param_count);
return (param_count > SCRIPT_TEXT_MAX_PARAMETERS) ? NULL : buf;
}
char *ScriptText::_GetEncodedText(char *p, char *lastofp, int ¶m_count)
{
p += Utf8Encode(p, SCC_ENCODED);
p += seprintf(p, lastofp, "%X", this->string);
for (int i = 0; i < this->paramc; i++) {
if (this->params[i] != NULL) {
p += seprintf(p, lastofp, ":\"%s\"", this->params[i]);
param_count++;
continue;
}
if (this->paramt[i] != NULL) {
p += seprintf(p, lastofp, ":");
p = this->paramt[i]->_GetEncodedText(p, lastofp, param_count);
continue;
}
p += seprintf(p, lastofp,":%X", (uint32)this->parami[i]);
param_count++;
}
return p;
}
const char *Text::GetDecodedText()
{
const char *encoded_text = this->GetEncodedText();
if (encoded_text == NULL) return NULL;
static char buf[1024];
::SetDParamStr(0, encoded_text);
::GetString(buf, STR_JUST_RAW_STRING, lastof(buf));
return buf;
}
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