| /* |
| * Copyright (C) 2016 Savoir-faire Linux Inc. |
| * Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #import "NSImage+Extensions.h" |
| |
| @implementation NSImage (Extensions) |
| |
| + (NSImage *)imageResize:(NSImage*)anImage |
| newSize:(NSSize)newSize |
| { |
| auto sourceImage = anImage; |
| // Report an error if the source isn't a valid image |
| if (![sourceImage isValid]) { |
| NSLog(@"Invalid Image"); |
| } else { |
| auto smallImage = [[NSImage alloc] initWithSize: newSize]; |
| [smallImage lockFocus]; |
| [sourceImage setSize: newSize]; |
| [[NSGraphicsContext currentContext] setImageInterpolation:NSImageInterpolationHigh]; |
| [sourceImage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.]; |
| [smallImage unlockFocus]; |
| return smallImage; |
| } |
| return nil; |
| } |
| |
| - (NSImage *) roundCorners:(CGFloat)radius { |
| NSImage *existingImage = self; |
| NSSize existingSize = [existingImage size]; |
| NSSize newSize = NSMakeSize(existingSize.width, existingSize.height); |
| NSImage *composedImage = [[NSImage alloc] initWithSize:newSize]; |
| |
| [composedImage lockFocus]; |
| [[NSGraphicsContext currentContext] setImageInterpolation:NSImageInterpolationHigh]; |
| |
| NSRect imageFrame = NSRectFromCGRect(CGRectMake(0, 0, existingSize.width, existingSize.height)); |
| NSBezierPath *clipPath = [NSBezierPath bezierPathWithRoundedRect:imageFrame xRadius:radius yRadius:radius]; |
| [clipPath setWindingRule:NSEvenOddWindingRule]; |
| [clipPath addClip]; |
| |
| [existingImage drawAtPoint:NSZeroPoint fromRect:NSMakeRect(0, 0, newSize.width, newSize.height) operation:NSCompositeSourceOver fraction:1]; |
| |
| [composedImage unlockFocus]; |
| |
| return composedImage; |
| } |
| |
| - (NSImage*) imageResizeInsideMax:(CGFloat) dimension { |
| if (self.size.width < dimension && self.size.height < dimension) { |
| return self; |
| } |
| CGFloat widthScaleFactor = dimension / self.size.width; |
| CGFloat heightScaleFactor = dimension / self.size.height; |
| CGFloat scale = MIN(widthScaleFactor, heightScaleFactor); |
| NSSize size = NSZeroSize; |
| size.width = self.size.width * scale; |
| size.height = self.size.height * scale; |
| return [NSImage imageResize:self newSize:size]; |
| } |
| |
| @end |