Gridarta Editor
UndoActions.java
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1 /*
2  * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
3  * Copyright (C) 2000-2023 The Gridarta Developers.
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 2 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 along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 package net.sf.gridarta.actions;
21 
28 import org.jetbrains.annotations.NotNull;
29 
34 public class UndoActions {
35 
39  private UndoActions() {
40  }
41 
47  public static <G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> void undo(@NotNull final UndoModel<G, A, R> undoModel, @NotNull final MapModel<G, A, R> mapModel) {
48  applyChange(undoModel, mapModel, undoModel.undo());
49  }
50 
56  public static <G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> void redo(@NotNull final UndoModel<G, A, R> undoModel, @NotNull final MapModel<G, A, R> mapModel) {
57  applyChange(undoModel, mapModel, undoModel.redo());
58  }
59 
66  private static <G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> void applyChange(@NotNull final UndoModel<G, A, R> undoModel, @NotNull final MapModel<G, A, R> mapModel, @NotNull final UndoState<G, A, R> undoState) {
67  try {
68  mapModel.beginTransaction(undoState.getName());
69  try {
70  final A newMapArchObject = undoState.getMapArchObject();
71  final MapArchObject<A> mapArchObject = mapModel.getMapArchObject();
72  mapArchObject.setMapSize(newMapArchObject.getMapSize());
73  mapArchObject.beginTransaction();
74  try {
75  mapArchObject.setState(newMapArchObject);
76  } finally {
77  mapArchObject.endTransaction();
78  }
79  undoState.getSavedSquares().applyChanges(mapModel);
80  } finally {
81  mapModel.endTransaction();
82  }
83  } finally {
84  undoModel.finish();
85  }
86  }
87 
88 }
net.sf.gridarta.model.mapmodel.MapModel
A MapModel reflects the data of a map.
Definition: MapModel.java:75
net.sf.gridarta
Base package of all Gridarta classes.
net.sf.gridarta.actions.UndoActions.applyChange
static< G extends GameObject< G, A, R > A extends R extends Archetype< G, A, R > void applyChange(@NotNull final UndoModel< G, A, R > undoModel, @NotNull final MapModel< G, A, R > mapModel, @NotNull final UndoState< G, A, R > undoState)
Definition: UndoActions.java:66
net.sf
net.sf.gridarta.model.mapmodel
Definition: AboveFloorInsertionMode.java:20
net.sf.gridarta.model.maparchobject.MapArchObject.beginTransaction
void beginTransaction()
Starts a new transaction.
net.sf.gridarta.model.archetype
Definition: AbstractArchetype.java:20
net.sf.gridarta.actions.UndoActions.undo
static< G extends GameObject< G, A, R > A extends R extends Archetype< G, A, R > void undo(@NotNull final UndoModel< G, A, R > undoModel, @NotNull final MapModel< G, A, R > mapModel)
Definition: UndoActions.java:47
net.sf.gridarta.model.gameobject.GameObject
Reflects a game object (object on a map).
Definition: GameObject.java:36
net.sf.gridarta.model.undo
Implementation of Undo / Redo for Gridarta.
Definition: package-info.java:24
net.sf.gridarta.model.gameobject
GameObjects are the objects based on Archetypes found on maps.
Definition: AbstractGameObject.java:20
net
net.sf.gridarta.actions.UndoActions
Utility class implementing undo and redo actions.
Definition: UndoActions.java:34
net.sf.gridarta.model.maparchobject.MapArchObject.setMapSize
void setMapSize(@NotNull Size2D mapSize)
Sets the map size.
net.sf.gridarta.actions.UndoActions.redo
static< G extends GameObject< G, A, R > A extends R extends Archetype< G, A, R > void redo(@NotNull final UndoModel< G, A, R > undoModel, @NotNull final MapModel< G, A, R > mapModel)
Definition: UndoActions.java:56
net.sf.gridarta.model.maparchobject.MapArchObject
Interface for MapArchObjects.
Definition: MapArchObject.java:40
net.sf.gridarta.model.maparchobject.MapArchObject.setState
void setState(@NotNull A mapArchObject)
Resets the state of this object to the state of the given map arch object.
net.sf.gridarta.model.undo.UndoState
Holds information to undo/redo one edit operation.
Definition: UndoState.java:34
net.sf.gridarta.model
net.sf.gridarta.model.archetype.Archetype
Reflects an Archetype.
Definition: Archetype.java:41
net.sf.gridarta.model.maparchobject
Definition: AbstractMapArchObject.java:20
net.sf.gridarta.actions.UndoActions.UndoActions
UndoActions()
Private constructor to prevent instantiation.
Definition: UndoActions.java:39
net.sf.gridarta.model.undo.UndoModel
Maintains the undo state for one map control.
Definition: UndoModel.java:40
net.sf.gridarta.model.maparchobject.MapArchObject.endTransaction
void endTransaction()
Ends a transaction.