"In metropolitan Melbourne the king of the localised apps is TramTracker, a way of hooking an iPhone into the real time transport information the system has been able to generate for years.
Recently ousted tram operator Yarra Trams must be cursing the timing of its failed contract renewal bid. If TramTracker for iPhone had run a couple of years before Judgement Day, they might have held onto the contract. The beauty of TramTracker is not during the peak, when transport is regular - if unpleasantly overfull. It's that more people will be prepared to travel at off-peak times. When you can reliably arrive at a stop a couple of minutes before a tram instead of risking a cold and wet or warm and windy 20-minute wait going in and coming home, a tram seems a fine way of getting to the CBD late on a Saturday afternoon.
It feels rather luxurious to sip a sparkler in the bar after the show at the Victorian Arts Centre until the iPhone announces that one's personal transport is about to arrive, and step on the carriage a minute or two later."
Whoa, it's been a while since posting!
Anyway, for a particular iPhone project I've been working on I've come across a requirement to be able to draw an underline underneath text on a UILabel. Google pointed me to a couple of tips, but lacked a complete solution.
Posted below is what I ended up with.
#import <UIKit/UIKit.h>
/**
* UnderLineLabel class
**/
@interface UnderLineLabel : UILabel {
BOOL underline;
}
// call setUnderline to YES/NO to show/hide the underline, this doesn't force a redraw
@property (nonatomic,getter=isUnderlined) BOOL underline;
@end
#import "UnderLineLabel.h"
@implementation UnderLineLabel
@synthesize underline;
- (void)drawTextInRect:(CGRect)rect
{
[super drawTextInRect:rect];
if ([self isUnderlined])
{
// Get the size of the label
CGSize dynamicSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(99999, 99999)
lineBreakMode:self.lineBreakMode];
// Get the current graphics context
CGContextRef context = UIGraphicsGetCurrentContext();
// Make it a while line 1.0 pixels wide
CGContextSetStrokeColorWithColor(context, [self.textColor CGColor]);
CGContextSetLineWidth(context, 1.5);
// find the origin point
CGPoint origin = CGPointMake(0, 0);
// horizontal alignment depends on the alignment of the text
if (self.textAlignment == UITextAlignmentCenter)
origin.x = (self.frame.size.width / 2) - (dynamicSize.width / 2);
else if (self.textAlignment == UITextAlignmentRight)
origin.x = self.frame.size.width - dynamicSize.width;
// vertical alignment is always middle/centre plus half the height of the text
origin.y = (self.frame.size.height / 2) + (dynamicSize.height / 2);
// Draw the line
CGContextMoveToPoint(context, origin.x, origin.y);
CGContextAddLineToPoint(context, origin.x + dynamicSize.width, origin.y);
CGContextStrokePath(context);
}
}
- (void)dealloc {
[super dealloc];
}
@end
All done!
-bok
Google's new browser software is designed to work "invisibly" and will run any application that runs on Apple's Safari web browser, company officials said.
"If you are webmaster, and your site works in Apple Safari then it will work very well in Google Chrome," Pichai said.
var GestureClass = Class.create
({
// Fired when a new instance of this object is made
initialize: function () {
// listen for start/stop events
document.observe('touchstart', this.start.bind(this));
document.observe('touchend', this.end.bind(this));
// touch storage
this.gestures = [];
},
start: function (e) {
// currently only support one finger on the viewport
if (e.touches.length == 1) {
var touch = e.touches[0];
// store the touch for later
this.gestures[touch.identifier] = Object.clone(touch);
this.gestures[touch.identifier].date = new Date();
}
},
end: function (e) {
// still only one finger
if (e.changedTouches.length == 1) {
// get the most recent touch
var end = e.changedTouches[0];
end.date = new Date();
// get the position that we started at
var start = this.gestures[end.identifier];
// and the duration of our swipe? number of milliseconds the gesture took
var duration = end.date.getTime() - start.date.getTime();
// calculate offsets
var horizontalMovement = start.clientX - end.clientX;
var verticalMovement = start.clientY - end.clientY;
// big enoug to count as a swipe? and quick enough
var viewport = document.viewport.getDimensions();
if (Math.abs(horizontalMovement) >= (viewport.width/2) && duration <= 800) {
// this object is passed to the new event under the 'memo' property
var gesture = {
start: start,
end: end,
gesture: 'swipe',
direction: (horizontalMovement >= 0 ? 'left' : 'right')
};
// Fire the gesture, listen with document.observe('gesture:swipe', <function>);
document.fire('gesture:swipe', gesture);
}
}
},
});
var Gestures = new GestureClass();