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2014/10/15 ¤U¤È 10:05:00

iphone Programming Glossary: cgcontextbeginpath

Rounded UIView using CALayers - only some corners - How?

http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how

context CGBitmapContextCreate NULL w h 8 4 w colorSpace kCGImageAlphaPremultipliedFirst CGContextBeginPath context CGRect rect CGRectMake 0 0 w h addRoundedRectToPath context rect 50 1 CGContextClosePath context..

How to customize the background/border colors of a grouped table view cell?

http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell

CGContextFillRect c CGRectMake 0.0f rect.size.height 10.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f rect.size.height 10.0f CGContextAddLineToPoint c 0.0f rect.size.height.. CGContextFillRect c CGRectMake 0.0f 0.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath.. c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath c CGContextMoveToPoint c rect.size.width 0.0f CGContextAddLineToPoint c rect.size.width 10.0f CGContextStrokePath..

Round two corners in UIView

http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview

rect Should I uncomment this int radius 5 CGContextRef context UIGraphicsGetCurrentContext CGContextBeginPath context CGContextAddArc context rect.origin.x radius rect.origin.y rect.size.height radius radius M_PI.. CGRectGetMaxX rect CGFloat miny CGRectGetMinY rect midy CGRectGetMidY rect maxy CGRectGetMaxY rect CGContextBeginPath context CGContextSetGrayFillColor context 1.0 0.0 CGContextAddRect context rect CGContextClosePath context.. context CGContextDrawPath context kCGPathFill CGContextSetGrayFillColor context 1.0 1.0 CGContextBeginPath context CGContextMoveToPoint context minx midy CGContextAddArcToPoint context minx miny midx miny radius_bl..

How do I draw a line on the iPhone?

http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone

c UIGraphicsGetCurrentContext CGFloat red 4 1.0f 0.0f 0.0f 1.0f CGContextSetStrokeColor c red CGContextBeginPath c CGContextMoveToPoint c 5.0f 5.0f CGContextAddLineToPoint c 50.0f 50.0f CGContextStrokePath c Save..

Rounded UIView using CALayers - only some corners - How?

http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how

CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB CGContextRef context CGBitmapContextCreate NULL w h 8 4 w colorSpace kCGImageAlphaPremultipliedFirst CGContextBeginPath context CGRect rect CGRectMake 0 0 w h addRoundedRectToPath context rect 50 1 CGContextClosePath context CGContextClip context CGContextDrawImage context rect img.CGImage..

How to customize the background/border colors of a grouped table view cell?

http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell

c borderColor CGColor if position CustomCellBackgroundViewPositionTop CGContextFillRect c CGRectMake 0.0f rect.size.height 10.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f rect.size.height 10.0f CGContextAddLineToPoint c 0.0f rect.size.height CGContextAddLineToPoint c rect.size.width rect.size.height.. rect.size.width rect.size.height 10.0f else if position CustomCellBackgroundViewPositionBottom CGContextFillRect c CGRectMake 0.0f 0.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath c CGContextMoveToPoint c rect.size.width 0.0f CGContextAddLineToPoint.. c CGRectMake 0.0f 0.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath c CGContextMoveToPoint c rect.size.width 0.0f CGContextAddLineToPoint c rect.size.width 10.0f CGContextStrokePath c CGContextClipToRect c CGRectMake 0.0f 10.0f..

Round two corners in UIView

http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview

Here is my drawRect method void drawRect CGRect rect super drawRect rect Should I uncomment this int radius 5 CGContextRef context UIGraphicsGetCurrentContext CGContextBeginPath context CGContextAddArc context rect.origin.x radius rect.origin.y rect.size.height radius radius M_PI M_PI 2 1 CGContextAddArc context rect.origin.x rect.size.width.. minx CGRectGetMinX rect midx CGRectGetMidX rect maxx CGRectGetMaxX rect CGFloat miny CGRectGetMinY rect midy CGRectGetMidY rect maxy CGRectGetMaxY rect CGContextBeginPath context CGContextSetGrayFillColor context 1.0 0.0 CGContextAddRect context rect CGContextClosePath context CGContextDrawPath context kCGPathFill CGContextSetGrayFillColor.. context 1.0 0.0 CGContextAddRect context rect CGContextClosePath context CGContextDrawPath context kCGPathFill CGContextSetGrayFillColor context 1.0 1.0 CGContextBeginPath context CGContextMoveToPoint context minx midy CGContextAddArcToPoint context minx miny midx miny radius_bl CGContextAddArcToPoint context maxx miny maxx midy radius_br..

How do I draw a line on the iPhone?

http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone

code that draws a line void drawRect CGRect rect CGContextRef c UIGraphicsGetCurrentContext CGFloat red 4 1.0f 0.0f 0.0f 1.0f CGContextSetStrokeColor c red CGContextBeginPath c CGContextMoveToPoint c 5.0f 5.0f CGContextAddLineToPoint c 50.0f 50.0f CGContextStrokePath c Save everything and click Build and Run you should now see a short..

Blur an image of specific part (rectangular, circular)?

http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular

UIGraphicsBeginImageContextWithOptions rect.size NO scale CGContextRef context UIGraphicsGetCurrentContext CGContextBeginPath context CGContextSaveGState context CGContextTranslateCTM context CGRectGetMinX rect CGRectGetMinY rect CGContextScaleCTM..

Rounded Corners on UIImage

http://stackoverflow.com/questions/205431/rounded-corners-on-uiimage

NULL CGRectGetMinX interiorRect CGRectGetMaxY interiorRect radius PNDegreeToRadian 90.0 PNDegreeToRadian 180.0 NO CGContextBeginPath maskedContextRef CGContextAddPath maskedContextRef borderPath CGContextClosePath maskedContextRef CGContextClip maskedContextRef..

Rounded UIView using CALayers - only some corners - How?

http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how

CGContextRef context CGBitmapContextCreate NULL w h 8 4 w colorSpace kCGImageAlphaPremultipliedFirst CGContextBeginPath context CGRect rect CGRectMake 0 0 w h addRoundedRectToPath context rect 50 1 CGContextClosePath context CGContextClip context..

want to add manual erasing option in ipad painting application by quartz

http://stackoverflow.com/questions/3863931/want-to-add-manual-erasing-option-in-ipad-painting-application-by-quartz

UIGraphicsGetCurrentContext UIColor clearColor .CGColor CGContextSetShouldAntialias UIGraphicsGetCurrentContext YES CGContextBeginPath UIGraphicsGetCurrentContext here img is ur background image then on move touch you simple write the line stroke code that..

How to customize the background/border colors of a grouped table view cell?

http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell

CustomCellBackgroundViewPositionTop CGContextFillRect c CGRectMake 0.0f rect.size.height 10.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f rect.size.height 10.0f CGContextAddLineToPoint c 0.0f rect.size.height CGContextAddLineToPoint.. else if position CustomCellBackgroundViewPositionBottom CGContextFillRect c CGRectMake 0.0f 0.0f rect.size.width 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath c CGContextMoveToPoint.. 10.0f CGContextBeginPath c CGContextMoveToPoint c 0.0f 10.0f CGContextAddLineToPoint c 0.0f 0.0f CGContextStrokePath c CGContextBeginPath c CGContextMoveToPoint c rect.size.width 0.0f CGContextAddLineToPoint c rect.size.width 10.0f CGContextStrokePath c CGContextClipToRect..

How to draw a “speech bubble” on an iPhone?

http://stackoverflow.com/questions/4442126/how-to-draw-a-speech-bubble-on-an-iphone

popupBorderColor CGContextSetFillColorWithColor context MyPopupLayer popupBackgroundColor Draw and fill the bubble CGContextBeginPath context CGContextMoveToPoint context borderRadius strokeWidth 0.5f strokeWidth HEIGHTOFPOPUPTRIANGLE 0.5f CGContextAddLineToPoint.. strokeWidth CGContextClosePath context CGContextDrawPath context kCGPathFillStroke Draw a clipping path for the fill CGContextBeginPath context CGContextMoveToPoint context borderRadius strokeWidth 0.5f round currentFrame.size.height HEIGHTOFPOPUPTRIANGLE..

Just two rounded corners? [duplicate]

http://stackoverflow.com/questions/4845211/just-two-rounded-corners

and then builds up a path based on the corners you want rounded. Then you apply that path to the view in drawRect CGContextBeginPath context addRoundedRectToPath context rect radius yourMask CGContextClosePath context CGContextClip context As I said I was..

Round two corners in UIView

http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview

CGRect rect super drawRect rect Should I uncomment this int radius 5 CGContextRef context UIGraphicsGetCurrentContext CGContextBeginPath context CGContextAddArc context rect.origin.x radius rect.origin.y rect.size.height radius radius M_PI M_PI 2 1 CGContextAddArc.. rect maxx CGRectGetMaxX rect CGFloat miny CGRectGetMinY rect midy CGRectGetMidY rect maxy CGRectGetMaxY rect CGContextBeginPath context CGContextSetGrayFillColor context 1.0 0.0 CGContextAddRect context rect CGContextClosePath context CGContextDrawPath.. rect CGContextClosePath context CGContextDrawPath context kCGPathFill CGContextSetGrayFillColor context 1.0 1.0 CGContextBeginPath context CGContextMoveToPoint context minx midy CGContextAddArcToPoint context minx miny midx miny radius_bl CGContextAddArcToPoint..

UITextView ruled line background but wrong line height

http://stackoverflow.com/questions/5375350/uitextview-ruled-line-background-but-wrong-line-height

UIColor colorWithRed 0.0f green 0.0f blue 0.0f alpha 0.2f .CGColor CGContextSetLineWidth context 1.0f Start a new Path CGContextBeginPath context Find the number of lines in our textView add a bit more height to draw lines in the empty part of the view NSUInteger..

iPhone Glossy Icons Using Core Graphics

http://stackoverflow.com/questions/5541457/iphone-glossy-icons-using-core-graphics

addGlossPath CGContextRef context CGRect rect CGFloat quarterHeight CGRectGetMidY rect 2 CGContextSaveGState context CGContextBeginPath context CGContextMoveToPoint context 20 0 CGContextAddLineToPoint context 20 quarterHeight CGContextAddQuadCurveToPoint..

How do I draw a line on the iPhone?

http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone

CGRect rect CGContextRef c UIGraphicsGetCurrentContext CGFloat red 4 1.0f 0.0f 0.0f 1.0f CGContextSetStrokeColor c red CGContextBeginPath c CGContextMoveToPoint c 5.0f 5.0f CGContextAddLineToPoint c 50.0f 50.0f CGContextStrokePath c Save everything and click..

UIImage Shadow Trouble

http://stackoverflow.com/questions/962827/uiimage-shadow-trouble

CGContextRef imageContext CGBitmapContextCreate NULL w h 8 4 w colorSpace kCGImageAlphaPremultipliedFirst CGContextBeginPath imageContext CGRect rect CGRectMake 0 0 w h addRoundedRectToPath imageContext rect 10 10 CGContextClosePath imageContext..