RDPCursor.m

//
//  RDPCursor.m
//  iFreeRDP
//
//  Created by byungho on 6/19/26.
//
 
#import "RDPCursor.h"
 
#include <winpr/wtypes.h>
 
@implementation RDPCursor
 
@synthesize image = _image;
@synthesize hotspot = _hotspot;
 
- (id)initWithRGBABytes:(const void *)bytes
                  width:(NSUInteger)width
                 height:(NSUInteger)height
                hotspot:(CGPoint)hotspot
{
  self = [super init];
  if (!self)
    return nil;
 
  if (!bytes || (width == 0) || (height == 0))
  {
    [self release];
    return nil;
  }
 
  NSData *pixelData = [NSData dataWithBytes:bytes length:width * height * 4];
  CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)pixelData);
  CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
  CGImageRef imageRef = CGImageCreate(width, height, 8, 32, width * 4, colorSpace,
                                      kCGBitmapByteOrderDefault | kCGImageAlphaLast, provider,
                                      nullptr, NO, kCGRenderingIntentDefault);
 
  CGColorSpaceRelease(colorSpace);
  CGDataProviderRelease(provider);
 
  if (!imageRef)
  {
    [self release];
    return nil;
  }
 
  _image = [[UIImage imageWithCGImage:imageRef scale:1.0
                          orientation:UIImageOrientationUp] retain];
  _hotspot = hotspot;
  CGImageRelease(imageRef);
  return self;
}
 
// default white cursor
+ (RDPCursor *)defaultCursor
{
  const CGSize size = CGSizeMake(24.0, 32.0);
  UIGraphicsBeginImageContextWithOptions(size, NO, 1.0);
 
  UIBezierPath *path = [UIBezierPath bezierPath];
  [path moveToPoint:CGPointMake(2.0, 1.0)];
  [path addLineToPoint:CGPointMake(2.0, 25.0)];
  [path addLineToPoint:CGPointMake(8.5, 19.0)];
  [path addLineToPoint:CGPointMake(13.0, 30.0)];
  [path addLineToPoint:CGPointMake(18.0, 28.0)];
  [path addLineToPoint:CGPointMake(13.5, 17.0)];
  [path addLineToPoint:CGPointMake(22.0, 17.0)];
  [path closePath];
  [[UIColor whiteColor] setFill];
  [[UIColor blackColor] setStroke];
  [path setLineWidth:2.0];
  [path fill];
  [path stroke];
 
  UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
 
  RDPCursor *cursor = [[[RDPCursor alloc] init] autorelease];
  [cursor setImage:image];
  [cursor setHotspot:CGPointMake(2.0, 1.0)];
  return cursor;
}
 
- (void)dealloc
{
  [_image release];
  [super dealloc];
}
 
@end