zxing/iphone/Classes/ScanCell.m

176 lines
5.1 KiB
Objective-C

//
// ScanCell.m
// ZXing
//
// Created by Christian Brunschen on 30/06/2008.
/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "ScanCell.h"
#import "Scan.h"
#import "ParsedResult.h"
#import "ResultParser.h"
static NSDateFormatter *_makeDateFormatter(NSDateFormatterStyle dateStyle,
NSDateFormatterStyle timeStyle) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateStyle:dateStyle];
[dateFormatter setTimeStyle:timeStyle];
return dateFormatter;
}
static NSString *_dateString(NSDate *date) {
static NSDateFormatter *dateFormatter = nil;
if (!dateFormatter) {
dateFormatter =
_makeDateFormatter(NSDateFormatterShortStyle, NSDateFormatterNoStyle);
}
return [dateFormatter stringFromDate:date];
}
static NSString *_timeString(NSDate *date) {
static NSDateFormatter *timeFormatter = nil;
if (!timeFormatter) {
timeFormatter =
_makeDateFormatter(NSDateFormatterNoStyle, NSDateFormatterShortStyle);
}
return [timeFormatter stringFromDate:date];
}
#define VIEW_PADDING 2.0
#define IMAGE_SIZE 40.0
#define EDITING_INSET 10.0
#define CONTENT_HEIGHT (IMAGE_SIZE + 2.0 * VIEW_PADDING)
#define DATE_TIME_WIDTH 50.0
@implementation ScanCell
@synthesize imageView;
@synthesize textView;
@synthesize dateView;
@synthesize timeView;
- (id)initWithFrame:(CGRect)frame reuseIdentifier:(NSString *)reuseIdentifier {
if ((self = [super initWithFrame:frame reuseIdentifier:reuseIdentifier])) {
imageView = [[UIImageView alloc] initWithFrame:CGRectZero];
imageView.contentMode = UIViewContentModeCenter;
[self.contentView addSubview:imageView];
textView = [[UILabel alloc] initWithFrame:CGRectZero];
textView.font = [UIFont boldSystemFontOfSize:[UIFont systemFontSize]];
textView.textAlignment = UITextAlignmentLeft;
textView.textColor = [UIColor blackColor];
[self.contentView addSubview:textView];
dateView = [[UILabel alloc] initWithFrame:CGRectZero];
dateView.font = [UIFont systemFontOfSize:(2 * [UIFont systemFontSize]) / 3];
dateView.textAlignment = UITextAlignmentRight;
dateView.textColor = [UIColor grayColor];
[self.contentView addSubview:dateView];
timeView = [[UILabel alloc] initWithFrame:CGRectZero];
timeView.font = [UIFont systemFontOfSize:(2 * [UIFont systemFontSize]) / 3];
timeView.textAlignment = UITextAlignmentRight;
timeView.textColor = [UIColor grayColor];
[self.contentView addSubview:timeView];
}
return self;
}
- (CGRect) _imageViewFrame {
CGRect frame = CGRectMake(VIEW_PADDING, VIEW_PADDING, IMAGE_SIZE, IMAGE_SIZE);
if (self.editing) {
frame.origin.x += EDITING_INSET;
}
return frame;
}
- (CGRect) _textViewFrame {
CGRect frame = CGRectMake(2 * VIEW_PADDING + IMAGE_SIZE, VIEW_PADDING, self.contentView.bounds.size.width - IMAGE_SIZE - DATE_TIME_WIDTH - 3 * VIEW_PADDING, CONTENT_HEIGHT - 2 * VIEW_PADDING);
if (self.editing) {
frame.origin.x += EDITING_INSET;
frame.size.width += DATE_TIME_WIDTH + VIEW_PADDING - EDITING_INSET;
}
return frame;
}
- (CGRect) _timeViewFrame {
float x = CGRectGetMaxX(self.contentView.bounds) - DATE_TIME_WIDTH - VIEW_PADDING;
CGRect frame = CGRectMake(x, VIEW_PADDING, DATE_TIME_WIDTH, (CONTENT_HEIGHT - 2 * VIEW_PADDING) / 2);
return frame;
}
- (CGRect) _dateViewFrame {
float x = CGRectGetMaxX(self.contentView.bounds) - DATE_TIME_WIDTH - VIEW_PADDING;
CGRect frame = CGRectMake(x, (CONTENT_HEIGHT - 2 * VIEW_PADDING) / 2, DATE_TIME_WIDTH, (CONTENT_HEIGHT - 2 * VIEW_PADDING) / 2);
return frame;
}
- (void)layoutSubviews {
[super layoutSubviews];
[imageView setFrame:[self _imageViewFrame]];
[textView setFrame:[self _textViewFrame]];
[dateView setFrame:[self _dateViewFrame]];
[timeView setFrame:[self _timeViewFrame]];
if (self.editing) {
dateView.alpha = 0.0;
timeView.alpha = 0.0;
} else {
dateView.alpha = 1.0;
timeView.alpha = 1.0;
}
}
- (void)setScan:(Scan *)newScan {
if (newScan != scan) {
[newScan retain];
[scan release];
scan = newScan;
[result release];
result = [[ResultParser parsedResultForString:[scan text]] retain];
imageView.image = [result icon];
textView.text = [result stringForDisplay];
NSDate *date = [scan stamp];
dateView.text = _dateString(date);
timeView.text = _timeString(date);
}
}
- (Scan *)scan {
return scan;
}
- (void)dealloc {
[imageView release];
[textView release];
[dateView release];
[timeView release];
[scan release];
[result release];
[super dealloc];
}
@end