zxing/iphone/Classes/ScanViewController.m
2008-08-01 13:04:23 +00:00

252 lines
7.8 KiB
Objective-C

//
// ScanViewController.m
// ZXing
//
// Created by Christian Brunschen on 24/06/2008.
/*
* 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 "ScanViewController.h"
#import "ResultAction.h"
#define TEXT_VIEW_TAG 0x17
#define DATETIME_VIEW_TAG 0x18
#define BUTTON_LABEL_TAG 0x19
#define TITLE_HEIGHT 44
#define BODY_HEIGHT 88
@implementation ScanViewController
@synthesize result;
@synthesize scan;
@synthesize dateFormatter;
#define FONT_NAME @"TimesNewRomanPSMT"
#define FONT_SIZE 16
- (id)initWithResult:(ParsedResult *)r forScan:(Scan *)s {
if (self = [super initWithStyle:UITableViewStyleGrouped]) {
self.result = r;
self.scan = s;
self.title = NSLocalizedString(@"ScanViewController title", @"Scan");
dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateStyle:NSDateFormatterLongStyle];
[dateFormatter setTimeStyle:NSDateFormatterLongStyle];
bodyFont = [[UIFont fontWithName:FONT_NAME size:FONT_SIZE] retain];
}
return self;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [[result actions] count] ? 2 : 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
switch (section) {
case 0:
return 3;
case 1:
return [[result actions] count];
default:
return 0;
}
}
- (UITableViewCell *)cellWithIdentifier:(NSString *)identifier inTableView:(UITableView *)tableView {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:identifier] autorelease];
}
return cell;
}
- (UITableViewCell *)titleCellInTableView:(UITableView *)tableView {
static NSString *TitleIdentifier = @"ScanViewTitleIdentifier";
return [self cellWithIdentifier:TitleIdentifier inTableView:tableView];
}
- (UITableViewCell *)datetimeCellInTableView:(UITableView *)tableView {
static NSString *DatetimeIdentifier = @"ScanViewDatetimeIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:DatetimeIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectMake(0, 0, 320, 34) reuseIdentifier:DatetimeIdentifier] autorelease];
cell.font = [UIFont systemFontOfSize:[UIFont systemFontSize] * 2.0 / 3.0];
cell.textColor = [UIColor grayColor];
cell.textAlignment = UITextAlignmentCenter;
}
return cell;
}
- (UITableViewCell *)bodyCellInTableView:(UITableView *)tableView {
static NSString *BodyIdentifier = @"ScanViewBodyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:BodyIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectMake(0, 0, 320, BODY_HEIGHT) reuseIdentifier:BodyIdentifier] autorelease];
UITextView *textView = [[UITextView alloc] initWithFrame:CGRectInset(cell.contentView.bounds, 6, 6)];
textView.font = bodyFont;
[textView setTag:TEXT_VIEW_TAG];
textView.editable = NO;
[textView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[cell.contentView addSubview:textView];
[textView release];
}
return cell;
}
- (UITableViewCell *)buttonCellInTableView:(UITableView *)tableView {
static NSString *ButtonIdentifier = @"ScanViewButtonIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ButtonIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectMake(0, 0, 320, 44) reuseIdentifier:ButtonIdentifier] autorelease];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectInset(cell.contentView.bounds, 6, 6)];
label.font = [UIFont boldSystemFontOfSize:[UIFont systemFontSize]];
[label setTag:BUTTON_LABEL_TAG];
label.lineBreakMode = UILineBreakModeMiddleTruncation;
label.textColor = [UIColor grayColor];
label.textAlignment = UITextAlignmentCenter;
[label setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
[cell.contentView addSubview:label];
[label release];
}
return cell;
}
#define TEXT_VIEW_HEIGHT 330.0
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 0) {
if (indexPath.row == 0) {
return TITLE_HEIGHT;
} else if (indexPath.row == 1) {
CGSize size = [[result stringForDisplay] sizeWithFont:bodyFont constrainedToSize:CGSizeMake(280.0, TEXT_VIEW_HEIGHT) lineBreakMode:UILineBreakModeWordWrap];
#ifdef DEBUG
NSLog(@"text size = %f", size.height);
#endif
return fminf(TEXT_VIEW_HEIGHT, fmaxf(44, size.height + 24));
} else if (indexPath.row == 2) {
return 24.0;
}
}
return tableView.rowHeight;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell;
if (indexPath.section == 0) {
if (indexPath.row == 0) {
cell = [self titleCellInTableView:tableView];
cell.image = [result icon];
cell.text = [[result class] typeName];
} else if (indexPath.row == 1) {
cell = [self bodyCellInTableView:tableView];
UITextView *textView = (UITextView *)[cell viewWithTag:TEXT_VIEW_TAG];
textView.text = [result stringForDisplay];
} else if (indexPath.row == 2) {
cell = [self datetimeCellInTableView:tableView];
cell.text = [dateFormatter stringFromDate:[scan stamp]];
}
} else if (indexPath.section == 1) {
cell = [self buttonCellInTableView:tableView];
ResultAction *action = [[result actions] objectAtIndex:indexPath.row];
UILabel *label = (UILabel *)[cell viewWithTag:BUTTON_LABEL_TAG];
label.text = [action title];
}
return cell;
}
- (void)performAction:(ResultAction *)action {
[action performActionWithController:self shouldConfirm:NO];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 1) {
ResultAction *action = [[result actions] objectAtIndex:indexPath.row];
[self performSelector:@selector(performAction:) withObject:action afterDelay:0.0];
}
}
/*
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
}
if (editingStyle == UITableViewCellEditingStyleInsert) {
}
}
*/
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
return NO;
}
/*
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
*/
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
return NO;
}
- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section != 1) {
return nil;
}
return indexPath;
}
- (void)dealloc {
[result release];
[scan release];
[bodyFont release];
[dateFormatter release];
[super dealloc];
}
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated {
}
- (void)viewDidDisappear:(BOOL)animated {
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
@end