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Diffstat (limited to 'Source/SPDataStorage.h')
| -rw-r--r-- | Source/SPDataStorage.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/Source/SPDataStorage.h b/Source/SPDataStorage.h new file mode 100644 index 00000000..2baa8d03 --- /dev/null +++ b/Source/SPDataStorage.h @@ -0,0 +1,101 @@ +// +// $Id$ +// +// SPDataStorage.h +// sequel-pro +// +// Created by Rowan Beentje on 10/01/2009. +// Copyright 2009 Rowan Beentje. All rights reserved. +// +// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +// More info at <http://code.google.com/p/sequel-pro/> + +#import <Cocoa/Cocoa.h> + +/* + * This class provides a storage mechanism intended to represent tabular + * data, in a 2D array. Data can be added and retrieved either directly + * or via NSArrays; internally, C arrays are used to provide speed and + * memory improvements. + * This class is essentially mutable. + */ + +#pragma mark - +#pragma mark Class definition + +@interface SPDataStorage : NSObject { + NSUInteger numColumns; + NSUInteger columnPointerByteSize; + NSUInteger numRows, numRowsCapacity; + + id **dataStorage; +} + +/* Retrieving rows and cells */ +- (NSMutableArray *) rowContentsAtIndex:(NSUInteger)index; +- (id) cellDataAtRow:(NSUInteger)rowIndex column:(NSUInteger)columnIndex; + +/* Adding and amending rows and cells */ +- (void) addRowWithContents:(NSArray *)row; +- (void) insertRowContents:(NSArray *)row atIndex:(NSUInteger)index; +- (void) replaceRowAtIndex:(NSUInteger)index withRowContents:(NSArray *)row; +- (void) replaceObjectInRow:(NSUInteger)rowIndex column:(NSUInteger)columnIndex withObject:(id)object; +- (void) removeRowAtIndex:(NSUInteger)index; +- (void) removeRowsInRange:(NSRange)rangeToRemove; +- (void) removeAllRows; + +/* Basic information */ +- (NSUInteger) count; +- (void) setColumnCount:(NSUInteger)columnCount; +- (NSUInteger) columnCount; + +/* Initialisation and teardown */ +#pragma mark - +- (id) init; +- (void) dealloc; + +@end + +#pragma mark - +#pragma mark Cached method calls to remove obj-c messaging overhead in tight loops + +static inline void SPDataStorageAddRow(SPDataStorage* self, NSArray* row) { + typedef void (*SPDSAddRowMethodPtr)(SPDataStorage*, SEL, NSArray*); + static SPDSAddRowMethodPtr SPDSAddRow; + if (!SPDSAddRow) SPDSAddRow = (SPDSAddRowMethodPtr)[self methodForSelector:@selector(addRowWithContents:)]; + SPDSAddRow(self, @selector(addRowWithContents:), row); +} + +static inline void SPDataStorageReplaceRow(SPDataStorage* self, NSUInteger rowIndex, NSArray* row) { + typedef void (*SPDSReplaceRowMethodPtr)(SPDataStorage*, SEL, NSUInteger, NSArray*); + static SPDSReplaceRowMethodPtr SPDSReplaceRow; + if (!SPDSReplaceRow) SPDSReplaceRow = (SPDSReplaceRowMethodPtr)[self methodForSelector:@selector(replaceRowAtIndex:withRowContents:)]; + SPDSReplaceRow(self, @selector(replaceRowAtIndex:withRowContents:), rowIndex, row); +} + +static inline void SPDataStorageReplaceObjectAtRowAndColumn(SPDataStorage* self, NSUInteger rowIndex, NSUInteger colIndex, id newObject) { + typedef void (*SPDSObjectReplaceMethodPtr)(SPDataStorage*, SEL, NSUInteger, NSUInteger, id); + static SPDSObjectReplaceMethodPtr SPDSObjectReplace; + if (!SPDSObjectReplace) SPDSObjectReplace = (SPDSObjectReplaceMethodPtr)[self methodForSelector:@selector(replaceObjectInRow:column:withObject:)]; + SPDSObjectReplace(self, @selector(replaceObjectInRow:column:withObject:), rowIndex, colIndex, newObject); +} + +static inline id SPDataStorageObjectAtRowAndColumn(SPDataStorage* self, NSUInteger rowIndex, NSUInteger colIndex) { + typedef id (*SPDSObjectFetchMethodPtr)(SPDataStorage*, SEL, NSUInteger, NSUInteger); + static SPDSObjectFetchMethodPtr SPDSObjectFetch; + if (!SPDSObjectFetch) SPDSObjectFetch = (SPDSObjectFetchMethodPtr)[self methodForSelector:@selector(cellDataAtRow:column:)]; + return SPDSObjectFetch(self, @selector(cellDataAtRow:column:), rowIndex, colIndex); +} |