pictures are openable with -showpic= argument

SnapmaticPicture.cpp

@@ -16,8 +16,120 @@
 *****************************************************************************/
 
 #include "SnapmaticPicture.h"
+#include <QPixmap>
+#include <QString>
+#include <QDebug>
+#include <QFile>
+int snapmaticHeaderLength = 278;
+int snapmaticUsefulLength = 256;
+int jpegPreHeaderLength = 14;
+int jpegPicStreamLength = 524288;
 
-SnapmaticPicture::SnapmaticPicture(QObject *parent) : QObject(parent)
+SnapmaticPicture::SnapmaticPicture(QObject *parent, QString fileName) : QObject(parent)
 {
+    // Init
+    cachePicture = QPixmap(0,0);
+    picFileName = "";
+    pictureStr = "";
+    lastStep = "";
+    jsonStr = "";
 
+    // Set pic fileName
+    if (fileName != "")
+    {
+        picFileName = fileName;
+    }
+}
+
+bool SnapmaticPicture::readingPicture()
+{
+    // Start opening file
+    // lastStep is like currentStep
+
+    QFile *picFile = new QFile(picFileName);
+    if (!picFile->open(QFile::ReadOnly))
+    {
+        lastStep = "1;/1,OpenFile," + convertDrawStringForLog(picFileName);
+        return false;
+    }
+
+    // Reading Snapmatic Header
+    if (!picFile->isReadable())
+    {
+        lastStep = "2;/3,ReadingFile," + convertDrawStringForLog(picFileName) + ",1,NOHEADER";
+        return false;
+    }
+    QByteArray snapmaticHeaderLine = picFile->read(snapmaticHeaderLength);
+    pictureStr = getSnapmaticPictureString(snapmaticHeaderLine);
+
+    // Reading JPEG Header Line
+    if (!picFile->isReadable())
+    {
+        lastStep = "2;/3,ReadingFile," + convertDrawStringForLog(picFileName) + ",2,NOHEADER";
+        return false;
+    }
+    QByteArray jpegHeaderLine = picFile->read(jpegPreHeaderLength);
+
+    // Checking for JPEG
+    jpegHeaderLine.remove(0,2);
+    if (jpegHeaderLine.left(4) != "JPEG")
+    {
+        lastStep = "2;/3,ReadingFile," + convertDrawStringForLog(picFileName) + ",2,NOJPEG";
+        return false;
+    }
+
+    lastStep = "3;/1,ReadedFile," + convertDrawStringForLog(picFileName);
+    QByteArray jpegRawContent = picFile->read(jpegPicStreamLength);
+    return cachePicture.loadFromData(jpegRawContent);
+}
+
+QString SnapmaticPicture::getSnapmaticPictureString(QByteArray snapmaticHeader)
+{
+    QByteArray snapmaticUsefulBytes = snapmaticHeader.left(snapmaticUsefulLength);
+    snapmaticUsefulBytes.replace(QByteArray::fromHex("00"),"");
+    snapmaticUsefulBytes.replace(QByteArray::fromHex("01"),"");
+    return QString::fromAscii(snapmaticUsefulBytes);
+}
+
+bool SnapmaticPicture::readingPictureFromFile(QString fileName)
+{
+    if (fileName != "")
+    {
+        picFileName = fileName;
+        return readingPicture();
+    }
+    else
+    {
+        return false;
+    }
+}
+
+void SnapmaticPicture::setPixmap(QPixmap pixmap)
+{
+    cachePicture = pixmap;
+}
+
+QString SnapmaticPicture::getPictureStr()
+{
+    return pictureStr;
+}
+
+QString SnapmaticPicture::getLastStep()
+{
+    return lastStep;
+}
+
+QPixmap SnapmaticPicture::getPixmap()
+{
+    return cachePicture;
+}
+
+QString SnapmaticPicture::convertDrawStringForLog(QString inputStr)
+{
+    return inputStr.replace("&","&u;").replace(",","&c;");
+}
+
+QString SnapmaticPicture::convertLogStringForDraw(QString inputStr)
+{
+    return inputStr.replace("&c;",",").replace("&u;","&");
 }