Guides

Cloud Border Style for Annotations

Users are allowed to set the border style of rectangular, circular, and polygonal annotations to a cloud-like pattern. The border style can also be changed between solid lines, dashed lines, or the cloud style. ComPDFKit provides convenient APIs for setting the cloud border style for annotations, along with demo demonstrations.

Here is an example code for adding a cloud-style border to a rectangular annotation:

swiftobjective-c

swift

// Dotted line style
let border = CPDFBorder(style: .dashed, lineWidth: 1, dashPattern: [2, 1])

let square = CPDFSquareAnnotation(document: document)
// Set the annotation properties.
square?.bounds = CGRect(x: 400, y: 200, width: 80, height: 300)
square?.color = UIColor.green
square?.interiorColor = UIColor.purple
square?.opacity = 1.0
square?.interiorOpacity = 1.0
// Set a solid or dashed border style
square?.border = border

// Set the cloud border style
let borderEffect = CPDFBorderEffect()
borderEffect?.borderEffectType = .cloudy
borderEffect?.intensityType = .two
square?.borderEffect = borderEffect

page.addAnnotation(square!)

objective-c

// Dotted line style
CPDFBorder *border = [[CPDFBorder alloc] initWithStyle:CPDFBorderStyleDashed
                                              lineWidth:1
                                            dashPattern:@[@(2), @(1)]];

CPDFSquareAnnotation *square = [[CPDFSquareAnnotation alloc] initWithDocument:document];
// Set the annotation properties.
square.bounds = CGRectMake(400, 200, 80, 300);
square.color = [UIColor greenColor];
square.interiorColor = [UIColor purpleColor];
square.opacity = 1.0;
square.interiorOpacity = 1.0;
// Set a solid or dashed border style
square.border = border;

// Set the cloud border style
CPDFBorderEffect *borderEffect = [[CPDFBorderEffect alloc] init];
borderEffect.intensityType = CPDFIntensityTypeTwo;
borderEffect.borderEffectType = CPDFBorderEffectTypeCloudy;
square.borderEffect = borderEffect
  
[page addAnnotation:square];

Cloud Border style Type Enumeration

Name	Description
CPDFIntensityTypeZero	The influence intensity ranges from 0 to 2, and when it is 0, it is a solid line
CPDFIntensityTypeOne
CPDFIntensityTypeTwo

Name	Description
CPDFBorderEffectTypeSolid	The border style style is a solid line
CPDFBorderEffectTypeCloudy	The border style style is cloud style

Cloud Border Style for Annotations ​

Cloud Border Style for Annotations