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JUCE/extras/Jucer (experimental)/Source/model/jucer_ResourceFile.cpp

313 lines
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C++

/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-9 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
#include "jucer_ResourceFile.h"
#include "../ui/jucer_ProjectTreeViewBase.h"
#include "../ui/jucer_OpenDocumentManager.h"
static const char* resourceFileIdentifierString = "JUCER_BINARY_RESOURCE";
//==============================================================================
ResourceFile::ResourceFile (Project& project_)
: project (project_),
className ("BinaryData")
{
addResourcesFromProjectItem (project.getMainGroup());
}
ResourceFile::~ResourceFile()
{
}
bool ResourceFile::isResourceFile (const File& file)
{
if (file.hasFileExtension ("cpp;h"))
{
ScopedPointer <InputStream> in (file.createInputStream());
if (in != 0)
{
MemoryBlock mb;
in->readIntoMemoryBlock (mb, 256);
return mb.toString().contains (resourceFileIdentifierString);
}
}
return false;
}
//==============================================================================
void ResourceFile::addResourcesFromProjectItem (const Project::Item& projectItem)
{
if (projectItem.isGroup())
{
for (int i = 0; i < projectItem.getNumChildren(); ++i)
addResourcesFromProjectItem (projectItem.getChild(i));
}
else
{
if (projectItem.shouldBeAddedToBinaryResources())
addFile (projectItem.getFile());
}
}
//==============================================================================
void ResourceFile::setJuceHeaderToInclude (const File& header)
{
juceHeader = header;
}
void ResourceFile::setClassName (const String& className_)
{
className = className_;
}
void ResourceFile::addFile (const File& file)
{
files.add (new File (file));
}
int64 ResourceFile::getTotalDataSize() const
{
int64 total = 0;
for (int i = 0; i < files.size(); ++i)
total += files.getUnchecked(i)->getSize();
return total;
}
static void writeCppData (InputStream& in, OutputStream& out)
{
const int maxCharsOnLine = 250;
MemoryBlock mb;
in.readIntoMemoryBlock (mb);
const unsigned char* data = (const unsigned char*) mb.getData();
int charsOnLine = 0;
bool canUseStringLiteral = mb.getSize() < 65535; // MS compilers can't handle strings bigger than 65536 chars..
if (canUseStringLiteral)
{
for (size_t i = 0; i < mb.getSize(); ++i)
{
const unsigned int num = (unsigned int) data[i];
if (! ((num >= 32 && num < 127) || num == '\t' || num == '\r' || num == '\n'))
{
canUseStringLiteral = false;
break;
}
}
}
if (! canUseStringLiteral)
{
out << "{ ";
for (size_t i = 0; i < mb.getSize(); ++i)
{
const int num = (int) (unsigned int) data[i];
out << num << ',';
charsOnLine += 2;
if (num >= 10)
++charsOnLine;
if (num >= 100)
++charsOnLine;
if (charsOnLine >= maxCharsOnLine)
{
charsOnLine = 0;
out << newLine;
}
}
out << "0,0 };";
}
else
{
out << "\"";
for (size_t i = 0; i < mb.getSize(); ++i)
{
const unsigned int num = (unsigned int) data[i];
switch (num)
{
case '\t': out << "\\t"; break;
case '\r': out << "\\r"; break;
case '\n': out << "\\n"; charsOnLine = maxCharsOnLine; break;
case '"': out << "\\\""; break;
case '\\': out << "\\\\"; break;
default: out << (char) num; break;
}
if (++charsOnLine >= maxCharsOnLine && i < mb.getSize() - 1)
{
charsOnLine = 0;
out << "\"" << newLine << "\"";
}
}
out << "\";";
}
}
static int calcResourceHashCode (const String& s)
{
const char* t = s.toUTF8();
int hash = 0;
while (*t != 0)
hash = 31 * hash + *t++;
return hash;
}
bool ResourceFile::write (const File& cppFile, OutputStream& cpp, OutputStream& header)
{
String comment;
comment << newLine << newLine
<< " This is an auto-generated file, created by " << JUCEApplication::getInstance()->getApplicationName() << newLine
<< " Do not edit anything in this file!" << newLine << newLine
<< "*/" << newLine << newLine;
header << "/* ========================================================================================="
<< comment;
cpp << "/* ==================================== " << resourceFileIdentifierString << " ===================================="
<< comment;
if (juceHeader.exists())
header << createIncludeStatement (juceHeader, cppFile) << newLine;
const String namespaceName (className);
StringArray variableNames;
int i;
for (i = 0; i < files.size(); ++i)
{
String variableNameRoot (makeValidCppIdentifier (files.getUnchecked(i)->getFileName()
.replaceCharacters (" .", "__")
.retainCharacters ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_0123456789"),
false, true, false));
String variableName (variableNameRoot);
int suffix = 2;
while (variableNames.contains (variableName))
variableName = variableNameRoot + String (suffix++);
variableNames.add (variableName);
}
cpp << createIncludeStatement (cppFile.withFileExtension (".h"), cppFile) << newLine
<< newLine
<< newLine
<< "const char* " << namespaceName << "::getNamedResource (const char* resourceNameUTF8, int& numBytes) throw()" << newLine
<< "{" << newLine
<< " int hash = 0;" << newLine
<< " if (resourceNameUTF8 != 0)" << newLine
<< " while (*resourceNameUTF8 != 0)" << newLine
<< " hash = 31 * hash + *resourceNameUTF8++;" << newLine
<< newLine
<< " switch (hash)" << newLine
<< " {" << newLine;
for (i = 0; i < files.size(); ++i)
{
cpp << " case 0x" << hexString8Digits (calcResourceHashCode (variableNames[i]))
<< ": numBytes = " << namespaceName << "::" << variableNames[i] << "Size; return "
<< namespaceName << "::" << variableNames[i] << ";" << newLine;
}
cpp << " default: break;" << newLine
<< " }" << newLine
<< newLine
<< " numBytes = 0;" << newLine
<< " return 0;" << newLine
<< "}" << newLine
<< newLine;
header << "namespace " << namespaceName << newLine << "{" << newLine;
for (i = 0; i < files.size(); ++i)
{
const File file (*files.getUnchecked(i));
const int64 dataSize = file.getSize();
ScopedPointer <InputStream> fileStream (file.createInputStream());
jassert (fileStream != 0);
if (fileStream != 0)
{
const String variableName (variableNames[i]);
const String tempVariable ("temp_" + String::toHexString (file.hashCode()));
header << " extern const char* " << variableName << ";" << newLine;
header << " const int " << variableName << "Size = " << (int) dataSize << ";" << newLine << newLine;
cpp << newLine << "//================== " << file.getFileName() << " ==================" << newLine
<< "static const unsigned char " << tempVariable
<< "[] =" << newLine;
writeCppData (*fileStream, cpp);
cpp << newLine << newLine
<< "const char* " << namespaceName << "::" << variableName << " = (const char*) "
<< tempVariable << ";" << newLine;
}
}
header << " // If you provide the name of one of the binary resource variables above, this function will" << newLine
<< " // return the corresponding data and its size (or a null pointer if the name isn't found)." << newLine
<< " const char* getNamedResource (const char* resourceNameUTF8, int& dataSizeInBytes) throw();" << newLine
<< "}" << newLine;
return true;
}
bool ResourceFile::write (const File& cppFile)
{
TemporaryFile tempH (cppFile.withFileExtension (".h"), TemporaryFile::useHiddenFile);
TemporaryFile tempCpp (cppFile, TemporaryFile::useHiddenFile);
ScopedPointer <FileOutputStream> cppOut (tempCpp.getFile().createOutputStream (32768));
ScopedPointer <FileOutputStream> hppOut (tempH.getFile().createOutputStream (32768));
if (cppOut != 0 && hppOut != 0)
{
if (write (cppFile, *cppOut, *hppOut))
{
cppOut = 0;
hppOut = 0;
return (areFilesIdentical (tempCpp.getFile(), tempCpp.getTargetFile()) || tempCpp.overwriteTargetFileWithTemporary())
&& (areFilesIdentical (tempH.getFile(), tempH.getTargetFile()) || tempH.overwriteTargetFileWithTemporary());
}
}
return false;
}