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128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/*
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icoutils_common.cpp - Extract Microsoft Window icons and images using icoutils package
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Copyright (c) 2009-2010 by Pali Rohár <pali.rohar@gmail.com>
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*************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#include "icoutils.h"
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#include <QList>
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#include <QString>
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#include <QTemporaryFile>
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#include <QImage>
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#include <QImageReader>
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#include <QPair>
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#include <QProcess>
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typedef QPair < QString, int > IconInExe;
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bool IcoUtils::loadIcoImageFromExe(const QString &inputFileName, QImage &image, int needWidth, int needHeight)
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{
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QProcess wrestool;
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wrestool.start("wrestool", QStringList() << "-l" << inputFileName);
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wrestool.waitForFinished();
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if ( wrestool.exitCode() != 0 )
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return false;
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const QStringList output = QString(wrestool.readAll()).split('\n');
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QRegExp regExp("--type=(.*) --name=(.*) --language=(.*) \\[(.*)\\]");
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QList <IconInExe> icons;
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// First try use group icons (type 14, default first for windows executables), then icons (type 3), then group cursors (type 12) and finaly cursors (type 1)
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// Note: Last icon (type 3) could be in higher resolution
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// Group Icons
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foreach ( const QString &line, output )
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if ( regExp.indexIn(line) != -1 && regExp.cap(1).toInt() == 14 )
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icons << qMakePair(regExp.cap(2), 14);
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// Icons
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foreach ( const QString &line, output )
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if ( regExp.indexIn(line) != -1 && regExp.cap(1).toInt() == 3 )
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icons << qMakePair(regExp.cap(2), 3);
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if ( icons.isEmpty() )
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return false;
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foreach ( const IconInExe &icon, icons )
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{
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QString name = icon.first;
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int type = icon.second;
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if ( name.at(0) == '\'' )
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name = name.mid(1, name.size()-2);
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QTemporaryFile outputFile;
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if ( ! outputFile.open() )
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return false;
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QFile(outputFile.fileName()).resize(0);
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wrestool.start("wrestool", QStringList() << "-x" << "-t" << QString::number(type) << "-n" << name << inputFileName << "-o" << outputFile.fileName());
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wrestool.waitForFinished();
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if ( wrestool.exitCode() == 0 && QFile(outputFile.fileName()).size() != 0 )
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return IcoUtils::loadIcoImage(outputFile.fileName(), image, needWidth, needHeight);
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}
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return false;
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}
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bool IcoUtils::loadIcoImage(const QString &inputFileName, QImage &image, int needWidth, int needHeight)
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{
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QImageReader reader(inputFileName, "ico");
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if ( ! reader.canRead() )
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return false;
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QList <QImage> icons;
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do icons << reader.read();
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while ( reader.jumpToNextImage() );
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if ( icons.empty() )
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return false;
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int min_w = 1024;
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int min_h = 1024;
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int index = icons.size() - 1;
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// we loop in reverse order because QtIcoHandler converts all images to 32-bit depth, and resources are ordered from lower depth to higher depth
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for ( int i_index = icons.size() - 1; i_index >= 0 ; --i_index )
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{
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const QImage &icon = icons.at(i_index);
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int i_width = icon.width();
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int i_height = icon.height();
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int i_w = qAbs(i_width - needWidth);
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int i_h = qAbs(i_height - needHeight);
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if ( i_w < min_w || ( i_w == min_w && i_h < min_h ) )
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{
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min_w = i_w;
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min_h = i_h;
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index = i_index;
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}
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}
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image = icons.at(index);
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return true;
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}
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