I've got two float values (x and y) that I'm using to change the
coordinates of a drawing action that is being looped through. I can
add a value to x and it draws the next image along, but I want to test
the value of x and if it is out of bounds I want to reset it to zero
and increase y, so I get a grid of images drawn.
For some reason, even though I can do
x = x+128;
and it moves the image accross, x seems to be null so I can't test
against it, my if statement ' if (x > 300){' always fails.
This must be something really simple I just can't see it this morning?
I'd appreciate any help.
Many Thanks
Amy
Full code being used:
- (IBAction)generateKitImages:(id)sender;
{
NSObject *kit;
kit = [[kits selectedObjects] objectAtIndex:0];
NSString* fileName = [[kit valueForKey:@"kitName"]
stringByAppendingString:@".jpg"];
NSString* kitimagePath = [[[[self applicationSupportFolder]
stringByAppendingPathComponent:@"images"]
stringByAppendingPathComponent:@"kit"]
stringByAppendingPathComponent:fileName];
//NSLog(@"Kit Image Path: %@", kitimagePath);
//create new image 300px square
NSImage *targetImage;
NSSize targetSize = NSMakeSize (300, 300);
targetImage = [[NSImage alloc] initWithSize:targetSize];
//select all images for kit
NSArray* kitImages = [kit
valueForKeyPath:@"kitItems.kitItemProduct.productImage"];
//set coordinates to x,y -> 0,0 to start
float x = 0;
float y = 0;
//for each image
NSEnumerator *imageLoop = [kitImages objectEnumerator];
NSString *imgPath;
while ((imgPath = [imageLoop nextObject])) {
NSImage *img = [[NSImage alloc]initWithContentsOfFile:imgPath];
//NSLog(@"Image: %@",img);
//resize to 100px high
//get original size
//NSSize *origSize;
//origSize = [img size];
//calculate scale factor
//[img setScalesWhenResized: YES];
//[img setSize: NSMakeSize (100., 100.)];
//apply image to view
[targetImage lockFocus];
[img drawInRect:NSMakeRect(x,y,100,100)
fromRect:NSMakeRect(x,y,100,100)
operation:NSCompositeCopy
fraction:1];
[targetImage unlockFocus];
//set new coordinates
x = x+100;
//if coordinates are too wide, start new row - if x>300, reset x to
0 and add 100 to y
if(x > 300){
x = 0;
y = y+100;
}
}
//apply kit logo to view
//apply kit date (text) to view
//save files out
//create a NSBitmapImageRep
NSBitmapImageRep *bmpImageRep = [[NSBitmapImageRep alloc]initWithData:
[targetImage TIFFRepresentation]];
//add the NSBitmapImage to the representation list of the target
[targetImage addRepresentation:bmpImageRep];
//get the data from the representation
NSData *data = [bmpImageRep representationUsingType: NSJPEGFileType
properties: nil];
//write the data to a file
[data writeToFile: kitimagePath
atomically: NO];
//link images to kit
[kit setValue:kitimagePath forKey:@"kitImage"];
}
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