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iOS

Posted by Laurynas Žilinskas
Laurynas Žilinskas
4,650 Points

Having trouble with objective-c drawing app...

Hello everybody it's not iOS problem but a MacOS language is nearly the same so I thought someone could help me :)

Inside the program I can drag in picture (jpg, png, etc.) and make it black and white then fill in the colors with brush. It's like masking. (http://i526.photobucket.com/albums/cc343/iumentus/ScreenShot2014-09-02at131420_zps81299de7.png)

But when I save it it still comes in B&W or in full color if I invert the mask (http://i526.photobucket.com/albums/cc343/iumentus/ateiviukas_zpsb41fae15.jpg)

My thoughts is that there are problems with mask:

- (void)genas {
    CIFilter *myNewFilter = [CIFilter filterWithName:@"CIBlendWithMask"];
    CGAffineTransform generateactualsizemask = CGAffineTransformMakeScale(5, 5);
    if (!isEfected) {
        if (!isInvert) {
            [myNewFilter setValue:bottomLayerImage forKey:@"inputBackgroundImage"];
            [myNewFilter setValue:[brushAccumulator.image imageByApplyingTransform:generateactualsizemask] forKey:@"inputMaskImage"];
            [myNewFilter setValue:topLayerImage forKey:@"inputImage"];
        } else {
            [myNewFilter setValue:topLayerImage forKey:@"inputBackgroundImage"];
            [myNewFilter setValue:[[brushAccumulator image] imageByApplyingTransform:generateactualsizemask] forKey:@"inputMaskImage"];
            [myNewFilter setValue:bottomLayerImage forKey:@"outputImage"];
        }
    } else {
        if (!isInvert) {
            [myNewFilter setValue:[effects_controller effects_workflow_for_actual_size_bottom] forKey:@"inputBackgroundImage"];
            [myNewFilter setValue:[brushAccumulator.image imageByApplyingTransform:generateactualsizemask] forKey:@"inputMaskImage"];
            [myNewFilter setValue:[effects_controller effects_workflow_for_actual_size_top] forKey:@"inputImage"];
        } else {
            [myNewFilter setValue:[effects_controller effects_workflow_for_actual_size_top] forKey:@"inputBackgroundImage"];
            [myNewFilter setValue:[[brushAccumulator image] imageByApplyingTransform:generateactualsizemask] forKey:@"inputMaskImage"];
            [myNewFilter setValue:[effects_controller effects_workflow_for_actual_size_bottom] forKey:@"outputImage"];
        }
    }
    actualsizeimage = [[myNewFilter valueForKey:@"outputImage"] retain];
}

Or it could be something with saving it:

- (IBAction)saveImage:(id)sender {
    if ([self image]) {
        save_panel  = [[NSSavePanel savePanel] retain];
        [save_panel setAllowedFileTypes:[NSArray arrayWithObjects:@"jpg", @"png", @"tiff", @"bmp", nil]];
        [save_panel setCanSelectHiddenExtension:YES];
        [save_panel setCanCreateDirectories:YES];
        [save_panel setAccessoryView:custom_save_panel_view];
        filename = [[filename stringByReplacingOccurrencesOfString:@"%20" withString:@" "] retain];
        [save_panel setNameFieldStringValue:filename];
        [saving_process_indicator setHidden:YES];


        [self format_selection_changed:nil];
        [save_panel beginSheetModalForWindow:self.window completionHandler:^(NSInteger rezultatas) {


            if(rezultatas == NSOKButton){
                [saving_process_indicator setHidden:NO];
                [saving_process_indicator startAnimation:self];

                [self genas];
                NSBitmapImageRep *saveRep = [[NSBitmapImageRep alloc] initWithCIImage:actualsizeimage];
                NSLog(@"saveRep.width = %ld", (long)[saveRep pixelsWide]);
                NSSize size = NSMakeSize([saveRep pixelsWide]*72.0/app_window->image_dpi, [saveRep pixelsHigh]*72.0/app_window->image_dpi);
                [saveRep setSize:size];
                NSLog(@"size.width = %f", size.width);

                for (int i=0; i==3; i++) {
                    [actualsizeimage release];
                }

                NSData *saveData;
                if ([[format_selection titleOfSelectedItem] isEqualToString:@"JPG"]) {
                    NSDictionary * dict = @{NSImageCompressionFactor: @(quality_slider.floatValue)};
                    saveData = [saveRep representationUsingType:NSJPEGFileType properties:dict];
                } else if ([[format_selection titleOfSelectedItem] isEqualToString:@"PNG"]) {
                    saveData = [saveRep representationUsingType:NSPNGFileType properties:nil];
                } else if ([[format_selection titleOfSelectedItem] isEqualToString:@"TIFF"]) {
                    saveData = [saveRep representationUsingType:NSTIFFFileType properties:nil];
                } else {
                    saveData = [saveRep representationUsingType:NSBMPFileType properties:nil];
                }

                [saveData writeToFile:@([[[save_panel URL] path]  UTF8String]) atomically:NO];
                [saveRep release];

                [saving_process_indicator setHidden:YES];
                [saving_process_indicator stopAnimation:self];

                if (fromDropCheck) {
                    [app_window performSelector:@selector(updateAfterSaving) withObject:nil afterDelay:0.2];
                    fromDropCheck = NO;
                }
                if (fromDockCheck) {
                    [app_delegate performSelector:@selector(updateAfterSaving) withObject:nil afterDelay:0.2];
                }
                if (fromQuitCheck) {
                    [app_window performSelector:@selector(updateAfterSavingQuit) withObject:nil afterDelay:0.2];
                    fromQuitCheck = NO;
                }
                if (fromQuitCheckDock) {
                    [app_delegate updateAfterSavingQuit];
                    fromQuitCheckDock = NO;
                }
                isSaved = YES;

            } else if (rezultatas == NSCancelButton) {
                if (fromDropCheck) {
                    [app_window performSelector:@selector(updateAfterSavingCancel) withObject:nil afterDelay:0.2];
                    fromDropCheck = NO;
                }

                if (fromQuitCheck) {
                    fromQuitCheck = NO;
                }

                if (fromQuitCheckDock) {
                    [app_delegate updateIfNotSavedFromSavingQuit];
                    fromQuitCheckDock = NO;
                }

            }
        }];
        [save_panel release];
    } else {
        NSBeep();
    }

}

THANK YOU!