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ConsolePanel.m
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ConsolePanel.m
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/* vim: set ft=objc ts=4 et sw=4 nowrap: */
/*
** ConsolePanel.m
**
** Copyright (c) 2011
**
** Author: Andreas Schik <andreas@schik.de>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ConsolePanel.h"
#include "Constants.h"
NSString *_ConsoleMessage = @"ConsoleMessage";
static ConsolePanel *consolePanel = nil;
void releaseSharedConsole()
{
TEST_RELEASE(consolePanel);
consolePanel = nil;
}
void logToConsole(NSString *priority, NSString *theMessage)
{
// create console if not already done
[ConsolePanel consolePanel];
[[NSNotificationCenter defaultCenter]
postNotificationName: _ConsoleMessage
object: nil
userInfo: [NSDictionary dictionaryWithObjectsAndKeys:
priority, @"Priority",
theMessage, @"Message", nil]];
}
@implementation ConsolePanel
- (id) init
{
[self initWithWindowNibName: @"Console"];
return self;
}
- (id) initWithWindowNibName: (NSString *) windowNibName
{
if (consolePanel) {
[self dealloc];
} else {
self = [super initWithWindowNibName: windowNibName];
consolePanel = self;
// The array is used to temporarily store the messages and is emptied
// by a timer.
// We need this to decouple the GUI action from the actual posting
// of the output, as this might have happend in a separate thread.
// And as we all know, is -gui not thread-safe...
logMessages = [NSMutableArray new];
[[self window] setFrameAutosaveName: @"ConsoleWindow"];
[[self window] setFrameUsingName: @"ConsoleWindow"];
}
return consolePanel;
}
- (void) dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver: self
name: _ConsoleMessage
object: nil];
[[NSDistributedNotificationCenter defaultCenter] removeObserver: self
name: ExternalToolOutput
object: nil];
[appendLock release];
[logMessages release];
[super dealloc];
}
- (void) awakeFromNib
{
[outputWindow setRichText: YES];
[[outputWindow textContainer] setWidthTracksTextView: YES];
}
//
// delegate methods
//
- (void) windowWillClose: (NSNotification *) not
{
// Do nothing
}
//
//
//
- (void) windowDidLoad
{
appendLock = [NSLock new];
[[NSNotificationCenter defaultCenter] addObserver: self
selector: @selector(messageWasReceived:)
name: _ConsoleMessage
object: nil];
[[NSDistributedNotificationCenter defaultCenter] addObserver: self
selector: @selector(messageWasReceived:)
name: ExternalToolOutput
object: nil];
// This timer process the message array.
[NSTimer scheduledTimerWithTimeInterval: 0.5
target: self
selector: @selector(appendOutput:)
userInfo: nil
repeats: NO];
}
//
// other methods
//
- (void) messageWasReceived: (id) not
{
NSString *priority;
NSString *message;
NSMutableAttributedString *output;
NSDictionary *attributes = nil;
// extract the output string from the message
message = [[not userInfo] objectForKey: @"Message"];
if (message == nil)
message = [[not userInfo] objectForKey: @"Output"];
if (message == nil) {
return;
}
// get the priority
priority = [[not userInfo] objectForKey: @"Priority"];
if (priority == nil)
priority = MessageStatusToolOutput;
// check for empty lines
if (([message length] == 0) ||
[message isEqualToString: @"\n"] || [message isEqualToString: @"\r"] ||
[message isEqualToString: @"\r\n"] || [message isEqualToString: @"\n\r"]) {
// we want only one empty line
if (lastLineWasEmpty == YES) {
return;
}
lastLineWasEmpty = YES;
} else
lastLineWasEmpty = NO;
// take care of line break
if (![message hasSuffix: @"\n"] && ![message hasSuffix: @"\r"])
message = [message stringByAppendingString: @"\n"];
// set color for the message due to priority
if ([priority isEqualToString: MessageStatusToolOutput]) {
attributes= [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor darkGrayColor], NSForegroundColorAttributeName,
NULL];
} else if ([priority isEqualToString: MessageStatusInfo]) {
attributes= [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor blackColor], NSForegroundColorAttributeName,
NULL];
} else if ([priority isEqualToString: MessageStatusWarning]) {
attributes= [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor blueColor], NSForegroundColorAttributeName,
NULL];
} else if ([priority isEqualToString: MessageStatusError]) {
attributes= [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor redColor], NSForegroundColorAttributeName,
NULL];
}
output = [NSMutableAttributedString new];
// append message to output
[output appendAttributedString: [[[NSAttributedString new] initWithString: message
attributes: attributes] autorelease]];
// add to message array
[appendLock lock];
[logMessages addObject: output];
[appendLock unlock];
[output release];
}
- (void) appendOutput: (id)timer
{
BOOL mustScroll = NO;
int i;
NSRange range;
// lock the output window for a moment
[appendLock lock];
for (i = 0; i < [logMessages count]; i++) {
mustScroll = YES;
// extract message from timer data and append it to output window
range = NSMakeRange ([[outputWindow string] length], 0);
[outputWindow replaceCharactersInRange: range
withAttributedString: (NSAttributedString*)[logMessages objectAtIndex: i]];
}
[logMessages removeAllObjects];
[appendLock unlock];
if (mustScroll) {
range = NSMakeRange ([[outputWindow string] length], 0);
[outputWindow scrollRangeToVisible: range];
}
[NSTimer scheduledTimerWithTimeInterval: 0.5
target: self
selector: @selector(appendOutput:)
userInfo: nil
repeats: NO];
}
+ (id) consolePanel
{
if (consolePanel == nil) {
consolePanel = [[ConsolePanel alloc] init];
}
return consolePanel;
}
@end