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Java UndoManager.redo方法代码示例

本文整理汇总了Java中org.fxmisc.undo.UndoManager.redo方法的典型用法代码示例。如果您正苦于以下问题:Java UndoManager.redo方法的具体用法?Java UndoManager.redo怎么用?Java UndoManager.redo使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.fxmisc.undo.UndoManager的用法示例。


在下文中一共展示了UndoManager.redo方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: testUndoInvertsTheChange

import org.fxmisc.undo.UndoManager; //导入方法依赖的package包/类
@Test
public void testUndoInvertsTheChange() {
    EventSource<Integer> changes = new EventSource<>();
    Var<Integer> lastAction = Var.newSimpleVar(null);
    UndoManager<?> um = UndoManagerFactory.unlimitedHistoryUndoManager(
            changes, i -> -i, i -> { lastAction.setValue(i); changes.push(i); });

    changes.push(3);
    changes.push(7);
    assertNull(lastAction.getValue());

    um.undo();
    assertEquals(-7, lastAction.getValue().intValue());

    um.undo();
    assertEquals(-3, lastAction.getValue().intValue());

    um.redo();
    assertEquals(3, lastAction.getValue().intValue());

    um.redo();
    assertEquals(7, lastAction.getValue().intValue());
}
 
开发者ID:FXMisc,项目名称:UndoFX,代码行数:24,代码来源:UndoManagerTest.java

示例2: testMergeResultingInNonIdentityChangeStoresMergeAndPreventsNextMerge

import org.fxmisc.undo.UndoManager; //导入方法依赖的package包/类
@Test
public void testMergeResultingInNonIdentityChangeStoresMergeAndPreventsNextMerge() {
    SimpleIntegerProperty lastAppliedValue = new SimpleIntegerProperty(0);
    EventSource<Integer> changes = new EventSource<>();
    UndoManager<?> um = UndoManagerFactory.unlimitedHistoryUndoManager(
            changes,
            i -> -i,    // invert
            i -> { lastAppliedValue.set(i); changes.push(i); }, // apply change and re-emit value so expected change is received
            (a, b) -> Optional.of(a + b), // merge adds two changes together
            i -> i == 0); // identity change = 0

    changes.push(1);
    changes.push(2);
    assertTrue(um.isUndoAvailable());
    um.undo();
    assertFalse(um.isUndoAvailable());
    assertEquals(-3, lastAppliedValue.get());

    um.redo(); // redo to test whether merge occurs on next push
    changes.push(5);
    assertTrue(um.isUndoAvailable());
    um.undo();
    assertEquals(-5, lastAppliedValue.get());
}
 
开发者ID:FXMisc,项目名称:UndoFX,代码行数:25,代码来源:UndoManagerTest.java

示例3: testMergeResultingInIdentityChangeAnnihilatesBothAndPreventsNextMerge

import org.fxmisc.undo.UndoManager; //导入方法依赖的package包/类
@Test
public void testMergeResultingInIdentityChangeAnnihilatesBothAndPreventsNextMerge() {
    SimpleIntegerProperty lastAppliedValue = new SimpleIntegerProperty(0);
    EventSource<Integer> changes = new EventSource<>();
    UndoManager<?> um = UndoManagerFactory.unlimitedHistoryUndoManager(
            changes,
            i -> -i,    // invert
            i -> { lastAppliedValue.set(i); changes.push(i); }, // apply change and re-emit value so expected change is received
            (a, b) -> Optional.of(a + b), // merge adds two changes together
            i -> i == 0); // identity change = 0

    // have at least one change stored
    changes.push(6);
    // prevent next merge from occurring
    um.preventMerge();

    // now push the identity-resulting merge changes
    changes.push(-3);   // change A
    changes.push(3);    // change B

    // changes should annihilate; neither are stored
    assertTrue(um.isUndoAvailable());
    um.undo();
    assertFalse(um.isUndoAvailable());
    assertEquals(-6, lastAppliedValue.get());

    um.redo(); // redo to test whether merge occurs on next push
    changes.push(3);
    assertTrue(um.isUndoAvailable());
    um.undo();
    assertTrue(um.isUndoAvailable());
    assertEquals(-3, lastAppliedValue.get());
}
 
开发者ID:FXMisc,项目名称:UndoFX,代码行数:34,代码来源:UndoManagerTest.java


注:本文中的org.fxmisc.undo.UndoManager.redo方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。