PICTURE *makepic(int fileid, int x, int y,
float xorig, float yorig, int items, int sampls, char *history)
{
PICTURE *pic = newpic();
fillhead(pic,fileid,x,y,xorig,yorig,items,sampls,history);
if (newdata(pic)) return(NULL);
return(pic);
}
/* only header contents copied, data memory not allocated; used by copypic */
PICTURE *copyhead(PICTURE *pic, int samples, int fileid)
{
PICTURE *pic2 = newpic();
if (pic == NULL)
{ (void)fprintf(stderr,"copyhead given null pic\n"); return(NULL); }
fillhead(pic2,fileid,pic->x,pic->y,pic->xorigin,pic->yorigin,pic->items,samples,pic->history);
return(pic2);
}
void MainWindow::on_pushButton_clicked()
{
QString inText = ui->lineEdit->text();
QFile newpic("pics/"+inText+".png");
newpic.open(QIODevice::WriteOnly);
qDebug() << "pics/"+inText+".png";
distortImg(makeImg(inText)).save(&newpic,"PNG");
}
//--actions for each picture file--//
foreach(QFileInfo p, piclist){
QString k = p.filePath(); //gets filename of image
QImage newpic(k); //gets image from filename
QLabel *imagelabel = new QLabel(this); //creates label for image
QImage newpic2 = newpic.scaled(tabWidget->width(), tabWidget->height(),Qt::KeepAspectRatio); //scales image to size of tabs
imagelabel->setPixmap(QPixmap::fromImage(newpic2)); //sets label to image
tabWidget->addTab(imagelabel,tr("Picture")); //creates tab with scaled image inside
}
PICTURE *readpic(char *filename)
{
PICTURE *pic = newpic();
FILE *fp;
if (filename == NULL) { filename = (char *)"stdin"; fp = stdin; }
else
if ((fp = fopen(filename,"rb")) == NULL )
{
(void)fprintf(stderr,"%s: readpic: failed to open input file %s\n",
PROGNAME,filename);
return(NULL);
}
(void)fprintf(stderr,"Reading %s from disk: ",filename);
if ((readhead(pic,fp)) == -1) return(NULL);
if (readdata(pic,fp)) return(NULL);
fclose(fp);
return(pic);
}
int main(int argc,char *argv[])
{
if (argc != 3)
{
fprintf(stderr,"usage: %s filein fileout\n",argv[0]);
exit(1);
}
dofiles(argc,argv);
if ((fp = fopen(FILEIN,"rb")) == NULL )
{
fprintf(stderr,"%s: wrong input file %s\n",PROGNAME,FILEIN);
exit(1);
}
pic = newpic();
while (1)
{
printf("k keeps the existing header\n");
printf("d deletes the header (translates into raw data format)\n");
printf("p prepends new header (translates from raw data format)\n");
printf("c changes to new header (d+p)\t>");
answer = getchar(); getchar();
printf("%c it is!\n\n",answer);
if ((answer == 'd') || (answer == 'k') || (answer == 'c'))
{ if (readhead(pic,fp) == -1) exit(1);
break; }
if (answer == 'p')
{
/* request new header - no header to be read anymore */
printf("Fileid int, as defined in vis.h (0 for unsigned char image): ");
scanf("%d",&(pic->fileid));
printf("New image width (x pixels): ");
scanf("%d",&(pic->x));
printf("New image height (y pixels): ");
scanf("%d",&(pic->y));
printf("Window x origin (float): ");
scanf("%f",&(pic->xorigin));
printf("Window y origin (float): ");
scanf("%f",&(pic->yorigin));
printf("Number of items (0 for x*y): ");
scanf("%d",&(pic->items));
if (pic->items == 0) pic->items = (pic->x)*(pic->y);
printf("Number of samples for each item: ");
scanf("%d",&(pic->samples));
printf("New image history: ");
scanf("%[^\n]",pic->history);
getchar();
pic->magic = VIS_MAGIC;
break;
}
printf("Unexpected response, please try again\n");
}
while (1)
{
printf("d for diagonal reflection (rows into columns)\n");
printf("r rotate 90 deg anti-clockwise (diagonal & horizontal reflections)\n");
printf("n for no reflection or endian byte swapping: ");
reverse = getchar(); getchar();
printf("%c it is!\n\n",reverse);
if ((reverse=='d') || (reverse=='r') || (reverse=='n')) break;
printf("Unexpected response - please try again or control-C\n");
}
while (1)
{
printf("v for Libor Spacek's LVL format output\n");
printf("p for Jef Poskanzer's PGM or PPM output \t>");
wout = getchar(); getchar();
printf("%c it is!\n",wout);
if (wout == 'v') break;
if (wout == 'p') break;
(void) printf("Unexpected response - please try again or control-C\n");
}
/* no more user input
the desired header must be known by now and be in *pic */
if ((reverse == 'd')||(reverse == 'r')) /* swap rows and columns */
{
newdata(pic);
chbufin = (unsigned char *)pic->data;
swapping = pic->y;
pic->y = pic->x;
pic->x = swapping;
sz = (pic->samples)*sizeofidtype(pic->fileid);
for (count=0;count<pic->x;count++)
if (reverse == 'r')
for (county=(pic->y)-1;county>=0;county--)
fread(&(chbufin[sz*(county*(pic->x)+count)]),sz,1,fp);
else
for (county=0;county<pic->y;county++)
fread(&(chbufin[sz*(county*pic->x+count)]),sz,1,fp);
}
else readdata(pic,fp);
fclose(fp);
if (answer != 'd')
switch (wout)
{
case 'v': writepic(pic,FILEOUT); break;
case 'p': writepmpic(pic,FILEOUT); break;
default: exit(1);
}
else
{
if ((fp = fopen(FILEOUT,"wb")) == NULL )
{
fprintf(stderr,"%s: wrong output file %s\n",PROGNAME,FILEOUT);
exit(1);
}
if (fwrite(pic->data,sizeofdata(pic),1,fp) == 0)
{
fprintf(stderr,"%s: failed to write data\n",PROGNAME);
exit(1);
}
}
exit(0);
}
