1/*
2    PPDocument_NotificationOverrides.m
3
4    Copyright 2013-2018 Josh Freeman
5    http://www.twilightedge.com
6
7    This file is part of PikoPixel for Mac OS X and GNUstep.
8    PikoPixel is a graphical application for drawing & editing pixel-art images.
9
10    PikoPixel is free software: you can redistribute it and/or modify it under
11    the terms of the GNU Affero General Public License as published by the
12    Free Software Foundation, either version 3 of the License, or (at your
13    option) any later version approved for PikoPixel by its copyright holder (or
14    an authorized proxy).
15
16    PikoPixel is distributed in the hope that it will be useful, but WITHOUT ANY
17    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18    FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
19    details.
20
21    You should have received a copy of the GNU Affero General Public License
22    along with this program. If not, see <http://www.gnu.org/licenses/>.
23*/
24
25#import "PPDocument.h"
26
27#import "PPDocument_Notifications.h"
28
29
30@implementation PPDocument (NotificationOverrides)
31
32// for better performance, operations that perform multiple quick updates to the document
33// bitmaps (interactive drawing, interactive moving, opacity sliders) should disable thumbnail
34// image update notifications to prevent the various thumbnail views from redrawing (each
35// different size forces a resample of the entire image: SLOW) until the end of the operation
36- (void) disableThumbnailImageUpdateNotifications:
37                                        (bool) shouldDisableThumbnailImageUpdateNotifications
38{
39    _disallowThumbnailImageUpdateNotifications =
40                                (shouldDisableThumbnailImageUpdateNotifications) ? YES : NO;
41}
42
43- (void) sendThumbnailImageUpdateNotifications
44{
45    [self postNotification_UpdatedMergedVisibleThumbnailImage];
46    [self postNotification_UpdatedDrawingLayerThumbnailImage];
47}
48
49@end
50