comparison: src/misc/documentPointer.cc
src/misc/documentPointer.cc
- changeset 584
- 12caa4e7b874
- child 590
- 7aec744ce97b
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| 583:4906c5c1670f | 584:12caa4e7b874 |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 Santeri Piippo | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation, either version 3 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include "documentPointer.h" | |
| 20 #include "../document.h" | |
| 21 | |
| 22 LDDocumentPointer::LDDocumentPointer() : m_Pointer (null) {} | |
| 23 | |
| 24 | |
| 25 // ============================================================================= | |
| 26 // ----------------------------------------------------------------------------- | |
| 27 LDDocumentPointer::LDDocumentPointer (LDDocument* ptr) : | |
| 28 m_Pointer (ptr) | |
| 29 { addReference (); | |
| 30 } | |
| 31 | |
| 32 // ============================================================================= | |
| 33 // ----------------------------------------------------------------------------- | |
| 34 LDDocumentPointer::LDDocumentPointer (const LDDocumentPointer& other) : | |
| 35 m_Pointer (other.getPointer()) | |
| 36 { addReference (); | |
| 37 } | |
| 38 | |
| 39 // ============================================================================= | |
| 40 // ----------------------------------------------------------------------------- | |
| 41 LDDocumentPointer::~LDDocumentPointer() | |
| 42 { removeReference(); | |
| 43 } | |
| 44 | |
| 45 // ============================================================================= | |
| 46 // ----------------------------------------------------------------------------- | |
| 47 void LDDocumentPointer::addReference() | |
| 48 { if (getPointer() != null) | |
| 49 getPointer()->addReference (this); | |
| 50 } | |
| 51 | |
| 52 // ============================================================================= | |
| 53 // ----------------------------------------------------------------------------- | |
| 54 void LDDocumentPointer::removeReference() | |
| 55 { if (getPointer() != null) | |
| 56 getPointer()->removeReference (this); | |
| 57 } | |
| 58 | |
| 59 // ============================================================================= | |
| 60 // ----------------------------------------------------------------------------- | |
| 61 LDDocumentPointer& LDDocumentPointer::operator= (LDDocument* ptr) | |
| 62 { if (ptr != getPointer()) | |
| 63 { removeReference(); | |
| 64 setPointer (ptr); | |
| 65 addReference(); | |
| 66 } | |
| 67 } |
