| 1 | /* Copyright (C) 2008-2009 Peter Speck |
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| 2 | * |
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| 3 | * This program is free software: you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation, either version 3 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 15 | */ |
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| 16 | |
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| 17 | #import "TableViewHelper.h" |
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| 18 | #import "GBDebug.h" |
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| 19 | |
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| 20 | #ifdef DEBUG |
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| 21 | //#defined DEBUG_TABLEVIEW 1 |
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| 22 | #endif |
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| 23 | |
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| 24 | @implementation TableViewHelper |
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| 25 | |
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| 26 | - (BOOL)removeRow:(NSInteger)row fromTable:(NSTableView *)tableView |
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| 27 | { |
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| 28 | NSInteger numRows = [tableView numberOfRows]; |
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| 29 | DebugNSLog(@"removeRow %ld, num rows = %ld", row, numRows); |
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| 30 | if (row < 0) { |
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| 31 | NSLog(@"removeSelectedRows without selected row"); |
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| 32 | return NO; |
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| 33 | } |
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| 34 | if (row >= numRows) { |
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| 35 | NSLog(@"Invalid row = %ld in removeSelectedRows, has only %ld rows", (long)row, (long)numRows); |
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| 36 | return NO; |
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| 37 | } |
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| 38 | if ([tableView editedRow] == row) { |
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| 39 | DebugNSLog(@"Ends editing as we're deleting the edited row"); |
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| 40 | [[tableView window] endEditingFor:tableView]; |
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| 41 | } |
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| 42 | if (![self deleteRowData:tableView forRow:row]) |
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| 43 | return NO; |
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| 44 | [tableView reloadData]; |
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| 45 | if (row + 1 < numRows) { |
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| 46 | DebugNSLog(@"Changes selection to next row"); |
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| 47 | NSIndexSet* indexes = [NSIndexSet indexSetWithIndex:row]; // already deleted. |
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| 48 | [tableView selectRowIndexes:indexes byExtendingSelection:NO]; |
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| 49 | } else if (row > 0) { |
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| 50 | DebugNSLog(@"Changes selection to previous row"); |
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| 51 | NSIndexSet* indexes = [NSIndexSet indexSetWithIndex:row - 1]; |
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| 52 | [tableView selectRowIndexes:indexes byExtendingSelection:NO]; |
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| 53 | } |
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| 54 | return YES; |
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| 55 | } |
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| 56 | |
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| 57 | - (BOOL)removeSelectedRows:(NSTableView *)tableView |
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| 58 | { |
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| 59 | NSIndexSet* set = [tableView selectedRowIndexes]; |
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| 60 | for (NSInteger row = [set lastIndex]; row != NSNotFound; row = [set indexLessThanIndex:row]) { |
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| 61 | if (![self removeRow:row fromTable:tableView]) |
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| 62 | return NO; |
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| 63 | } |
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| 64 | return YES; |
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| 65 | } |
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| 66 | |
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| 67 | - (BOOL)deleteRowData:(NSTableView *)tableView forRow:(NSUInteger)row |
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| 68 | { |
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| 69 | NSAssert(NO, @"TableViewHelper.deleteRowData must be overridden."); |
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| 70 | return YES; |
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| 71 | } |
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| 72 | |
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| 73 | @end |
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