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//
// MQBinaryViewer.m
// MySQL QueryBrowser
//
// Created by Alfredo Kojima on 4/28/05.
// Copyright 2005 MySQL AB. All rights reserved.
//
#import "MQBinaryViewer.h"
@interface MQBVDataSource : NSObject
{
NSData *_data;
}
- (void)setData:(NSData*)data;
@end
@implementation MQBVDataSource
- (void)setData:(NSData*)data
{
if (_data != data)
{
[_data release];
_data= [data retain];
}
}
- (int)numberOfRowsInTableView:(NSTableView *)aTableView
{
return ([_data length] + 15) / 16;
}
- (id)tableView:(NSTableView *)aTableView
objectValueForTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex
{
if ([[aTableColumn identifier] isEqualTo:@"offset"])
return [NSString stringWithFormat:@"%08x", rowIndex*16];
else
{
int index= [[aTableColumn identifier] intValue];
char *ptr= (char*)[_data bytes];
if (index < 100)
{
if (rowIndex*16 + index < [_data length])
return [NSString stringWithFormat:@"%02x", (unsigned char)ptr[rowIndex*16+index]];
else
return @"";
}
else
{
index-= 100;
if (rowIndex*16 + index*4 < [_data length])
{
int i;
char buffer[5];
for (i= 0; i < 4; i++)
buffer[i]= isprint(ptr[rowIndex*16+index*4+i])?ptr[rowIndex*16+index*4+i]:'.';
buffer[4]= 0;
return [NSString stringWithFormat:@"%s", buffer];
}
else
return @"";
}
}
}
@end
@implementation MQBinaryViewer
- (id)initWithData:(NSData*)data
{
self= [super init];
if (self)
{
unsigned int i;
NSTableColumn *column;
NSFont *font;
NSColor *color1, *color2;
_sview= [[NSScrollView alloc] initWithFrame:NSMakeRect(0,0,200,200)];
[_sview setHasHorizontalScroller:NO];
[_sview setHasVerticalScroller:YES];
[_sview setBorderType: NSGrooveBorder];
[_sview setAutoresizingMask:NSViewMinXMargin|NSViewMaxXMargin|NSViewHeightSizable];
[[_sview contentView] setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable];
[[_sview contentView] setAutoresizesSubviews:YES];
_table= [[NSTableView alloc] initWithFrame:[[_sview contentView] frame]];
// [_table setDrawsGrid:YES];
[_table setHeaderView:nil];
[_table setRowHeight:14];
[_table setIntercellSpacing:NSMakeSize(0,0)];
[_sview setDocumentView:_table];
_dataSource= [[MQBVDataSource alloc] init];
[_dataSource setData:data];
[_table setDataSource:_dataSource];
[_table reloadData];
font= [NSFont fontWithName:@"Courier" size:11.0];
column= [[[NSTableColumn alloc] initWithIdentifier:@"offset"] autorelease];
[column setWidth:[font widthOfString:@"00000000"]+10];
[[column dataCell] setFont:font];
[_table addTableColumn:column];
[column setEditable:NO];
color1= [NSColor colorWithDeviceRed:0.9 green:1.0 blue:0.9 alpha:1.0];
color2= [NSColor colorWithDeviceRed:0.9 green:0.9 blue:1.0 alpha:1.0];
for (i= 0; i < 16; i++)
{
column= [[[NSTableColumn alloc] initWithIdentifier:[NSNumber numberWithInt:i]] autorelease];
[column setWidth:[font widthOfString:@"00"]+((i==15)?10:4)];
[column setEditable:NO];
[_table addTableColumn:column];
if ((i / 4) & 1)
[[column dataCell] setBackgroundColor:color1];
else
[[column dataCell] setBackgroundColor:color2];
[[column dataCell] setDrawsBackground:YES];
[[column dataCell] setFont:font];
}
for (i= 0; i < 4; i++)
{
column= [[[NSTableColumn alloc] initWithIdentifier:[NSNumber numberWithInt:100+i]] autorelease];
[column setWidth:[font widthOfString:@"XXXX"]+4];
[column setEditable:NO];
[_table addTableColumn:column];
if (i & 1)
[[column dataCell] setBackgroundColor:color1];
else
[[column dataCell] setBackgroundColor:color2];
[[column dataCell] setDrawsBackground:YES];
[[column dataCell] setFont:font];
[[column dataCell] setWraps:NO];
}
}
return self;
}
- (void)setData:(NSData*)data
{
[_dataSource setData:data];
[_table reloadData];
}
- (NSString*)label
{
return @"Binary";
}
- (NSView*)view
{
return _sview;
}
- (void)setEditable:(BOOL)flag
{
}
@end
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