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320 lines
10 KiB
C++
320 lines
10 KiB
C++
/**
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* \file main.cpp
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* \date October 2004
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* \author Matt Raykowski
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*
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* This sample shows how to load a Georges form and read parts from it.
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*/
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// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// System Includes
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//
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#include <stdio.h>
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//
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// NeL Includes
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//
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#include "nel/misc/debug.h"
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#include "nel/georges/u_form_loader.h"
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#include "nel/georges/u_form.h"
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#include "nel/georges/u_form_elm.h"
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#include "nel/georges/load_form.h"
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#ifndef GF_DIR
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# define GF_DIR "."
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#endif
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struct TPositionData
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{
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uint X, Y, Z;
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/// This class must be serializable for the form to be packed.
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void serial(NLMISC::IStream &f)
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{
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f.serial(X);
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f.serial(Y);
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f.serial(Z);
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}
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};
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struct TSampleConfig
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{
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/// Load a form, if necessary, and store its data in the members of this class.
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void readGeorges (const NLMISC::CSmartPtr<NLGEORGES::UForm> &form, const NLMISC::CSheetId &sheetId)
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{
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readForm(form);
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}
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void readGeorges (const NLMISC::CSmartPtr<NLGEORGES::UForm> &form, const std::string &sheetId)
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{
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readForm(form);
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}
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void readForm(const NLMISC::CSmartPtr<NLGEORGES::UForm> &form)
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{
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nlinfo("Loading a sample config object.");
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// The system has already loaded the form and parsed it using a loader. So get the root node:
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NLGEORGES::UFormElm &root = form->getRootNode();
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// And start loading the form values into the object.
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root.getValueByName(TestVal1, ".TestVal1");
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root.getValueByName(TestVal2, ".TestVal2");
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root.getValueByName(PosData.X,"PositionData.x");
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root.getValueByName(PosData.Y,"PositionData.y");
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root.getValueByName(PosData.Z,"PositionData.z");
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// Get the array called "TestArray"
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NLGEORGES::UFormElm *testArray;
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root.getNodeByName(&testArray, ".TestArray");
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if(testArray != NULL) {
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// Get the size of the array.
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uint size;
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testArray->getArraySize(size);
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// Cycle through the atoms in the array
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for(uint idx=0 ; idx<size ; idx++) {
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std::string arrayValue;
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// Get the value of the array.
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testArray->getArrayValue(arrayValue, idx);
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// And insert it into our container.
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TestArray.push_back(arrayValue);
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}
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}
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// And so on. We'll skip the rest of the sheet, you get the idea.
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// ...
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}
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/// This class must be serializable for the form to be packed.
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void serial(NLMISC::IStream &f)
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{
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f.serial(TestVal1);
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f.serial(TestVal2);
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f.serial(PosData);
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f.serialCont(TestArray);
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}
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/// This is called whenever the loader needs to remove an old sheet.
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void removed()
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{
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}
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/// This is used to make sure that changes in form/loader versions are correctly handled. This must be > 0.
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static uint getVersion() { return 1; }
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uint32 TestVal1;
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uint32 TestVal2;
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TPositionData PosData;
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std::vector<std::string> TestArray;
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};
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/// This contains the TSampleConfig sheets.
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std::map<NLMISC::CSheetId, TSampleConfig> MySampleConfigsSheets;
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std::map<std::string, TSampleConfig> MySampleConfigs;
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int main(void)
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{
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new NLMISC::CApplicationContext;
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// get a pointer ready for the form loader.
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NLGEORGES::UFormLoader *formLoader = NULL;
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NLMISC::CPath::addSearchPath(GF_DIR, false, false);
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try {
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// set the name of the form you're going to load.
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std::string sampleConfigFile = NLMISC::CPath::lookup("default.sample_config", false);
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// check to see if CPath found the config.
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if (!sampleConfigFile.empty()) {
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// we'll use this to test retrieving vars.
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bool res;
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// get a form loader.
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formLoader = NLGEORGES::UFormLoader::createLoader();
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// this will hold the form we load - it must be contained in a smart pointer.
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NLMISC::CSmartPtr<NLGEORGES::UForm> form;
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// load the form.
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form = formLoader->loadForm(sampleConfigFile.c_str());
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// get the root of the form.
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NLGEORGES::UFormElm &root = form->getRootNode();
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// retrieve the two test values
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uint32 testVal1, testVal2, badVar1;
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root.getValueByName(testVal1, ".TestVal1");
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root.getValueByName(testVal2, ".TestVal2");
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// try and get a var that doesn't exist.
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res=root.getValueByName(badVar1, ".Foobar");
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if(res) {
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nlinfo("This should never have matched.");
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exit(1);
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}
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// and output them
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nlinfo("Test Value 1: %d",testVal1);
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nlinfo("Test Value 2: %d",testVal2);
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nlinfo("Foo Retrieval was: %s", res ? "true" : "false");
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// Retrieve data from a root-level named struct
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uint xTest, yTest, zTest;
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root.getValueByName(xTest,"PositionData.x");
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root.getValueByName(yTest,"PositionData.y");
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root.getValueByName(zTest,"PositionData.z");
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nlinfo("Retrieved Position Data (x,y,z): %d, %d, %d",xTest,yTest,zTest);
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// get a reference to the TestArray array...
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NLGEORGES::UFormElm *testArray;
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res=root.getNodeByName(&testArray, ".TestArray");
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nlinfo("TestArray retrieval returned: %s", res ? "true" : "false");
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// make sure it was there.
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if(testArray != NULL) {
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// get the size of the array.
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uint size;
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testArray->getArraySize(size);
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// cycle through the atoms in the array
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for(uint idx=0 ; idx<size ; idx++) {
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// string to store our array values in.
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std::string arrayValue;
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// and get the value of the array, we know it's a string.
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testArray->getArrayValue(arrayValue, idx);
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nlinfo("Found TestArray atom: %s",arrayValue.c_str());
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}
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} else {
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if(res==true)
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nlinfo("TestArray wasn't configured properly but was found, double check the form.");
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else
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nlinfo("Something's wrong, the TestArray is missing from the form.");
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}
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// Next grab a set of structures from an array.
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NLGEORGES::UFormElm *coolFiles;
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res=root.getNodeByName(&coolFiles, ".CoolFilesInfo");
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nlinfo("Retrieving CoolFilesInfo returned: %s", res ? "true" : "false");
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if(coolFiles != NULL) {
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uint size;
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coolFiles->getArraySize(size);
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// cycle through the structs in the array.
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for(uint idx=0 ; idx<size ; idx++) {
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// storage for our vars in the structs
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std::string name, shortname;
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uint rank, toptenrank;
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// since we know the structure of the file, we know the array contains structs
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// retrieve the struct for use.
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NLGEORGES::UFormElm *files;
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coolFiles->getArrayNode(&files, idx);
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// we can now access this struct in the array as a root.
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files->getValueByName(rank, ".Ranking");
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files->getValueByName(toptenrank, ".TopTenRanking");
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files->getValueByName(name, ".Name");
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files->getValueByName(shortname, ".ShortName");
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nlinfo("Retrieved struct %d: |%s| - %s at %d (%d)", idx, name.c_str(), shortname.c_str(), rank, toptenrank);
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}
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} else {
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if(res==true)
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nlinfo("CoolFilesInfo was found, but might have been entered incorrectly, double check the form.");
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else
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nlinfo("CoolFilesInfo wasn't found or there was a syntax error loading your form.");
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}
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// we can also access elements of an array by their backet identifier.
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std::string bbool1, bbool2;
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root.getValueByName(bbool1, ".TestByBracket[0]");
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root.getValueByName(bbool2, ".TestByBracket[1]");
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nlinfo("Bool Backet 1: %s, Bool Bracket 2: %s",bbool1.c_str(), bbool2.c_str());
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// likewise you can access structures by index and dot notation. take the CoolFilesInfo.
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// the following should return 1, the ranking for the Nevrax Presents element.
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// and the 2nd one should return 'Crazy Car Jump' from that element.
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uint rankTest;
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std::string nameTest;
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root.getValueByName(rankTest, ".CoolFilesInfo[2].Ranking");
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root.getValueByName(nameTest, ".CoolFilesInfo[1].ShortName");
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nlinfo("Retrieved .CoolFilesInfo[2].Ranking using bracket and dot notation: %d", rankTest);
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nlinfo("Retrieved .CoolFilesInfo[1].ShortName using bracket and dot notation: %s", nameTest.c_str());
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// if you set a value to a node name that doesn't exist, it's created. after running this you will see it listed in the form:
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uint writeValue;
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// first lets see if we can find it:
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res=root.getValueByName(writeValue,".WriteVal");
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if(res) // if it existed, save the value and increment it.
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writeValue++;
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else
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writeValue=3;
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// now set the value. created tells us if the value was creaed or just updated.
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bool created;
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root.setValueByName(writeValue,".WriteVal",&created);
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if(created) {
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nlinfo("WriteVal wasn't found and was created.");
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} else {
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nlinfo("Updated WriteVal, it already existed in the form.");
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}
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// and finally save the form out in case we made changes.
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// if you're accessing a form read-only (not using set*) you can skip this.
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NLMISC::COFile saveSample(sampleConfigFile);
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form->write(saveSample, false);
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nlinfo("Saved sample config file.");
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} else {
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// CPath didn't find the file, just print an error and exit.
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nlinfo("Couldn't find the config file.");
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exit(1);
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}
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// finished, unload the form loader.
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NLGEORGES::UFormLoader::releaseLoader(formLoader);
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} catch(...) {
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// something went wrong, unload the form loader.
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nlinfo("Caught an exception, quitting.");
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NLGEORGES::UFormLoader::releaseLoader(formLoader);
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}
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// Now demonstrate the packed sheet system.
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nlinfo("Begin loading packed sheets.");
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::loadForm( "sample_config", "sample_configs.packed_sheets", MySampleConfigs, true, false);
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nlinfo("Number of sheets loaded: %d", MySampleConfigs.size());
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// Now demonstrate the packed sheet system using CSheetId's and the sheet_id.bin file.
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nlinfo("Load packed sheets using CSheetId and the sheet_id.bin");
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::loadForm( "sample_config", "sample_configs_sheets.packed_sheets", MySampleConfigsSheets, true, false);
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nlinfo("Number of sheets loaded with CSheetId's: %d", MySampleConfigsSheets.size());
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}
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