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Fix VisSplitPane and MultiSplitPane custom cursor handling, #255
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102 changes: 102 additions & 0 deletions
102
ui/src/main/java/com/kotcrab/vis/ui/widget/internal/SplitPaneCursorManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /* | ||
| * Copyright 2014-2016 See AUTHORS file. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package com.kotcrab.vis.ui.widget.internal; | ||
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| import com.badlogic.gdx.Gdx; | ||
| import com.badlogic.gdx.graphics.Cursor; | ||
| import com.badlogic.gdx.scenes.scene2d.Actor; | ||
| import com.badlogic.gdx.scenes.scene2d.InputEvent; | ||
| import com.badlogic.gdx.scenes.scene2d.utils.ClickListener; | ||
| import com.kotcrab.vis.ui.util.CursorManager; | ||
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| /** | ||
| * Manages setting custom cursor for split panes. | ||
| * This is VisUI internal class | ||
| * @author Kotcrab | ||
| * @since 1.4.0 | ||
| */ | ||
| public abstract class SplitPaneCursorManager extends ClickListener { | ||
| private Actor owner; | ||
| private boolean vertical; | ||
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| private Cursor.SystemCursor currentCursor; | ||
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| public SplitPaneCursorManager (Actor owner, boolean vertical) { | ||
| this.owner = owner; | ||
| this.vertical = vertical; | ||
| } | ||
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| @Override | ||
| public boolean touchDown (InputEvent event, float x, float y, int pointer, int button) { | ||
| return handleBoundsContains(x, y); | ||
| } | ||
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| @Override | ||
| public void touchDragged (InputEvent event, float x, float y, int pointer) { | ||
| super.touchDragged(event, x, y, pointer); //handles setting cursor when mouse returned to widget after exiting it while dragged | ||
| if (contains(x, y)) { | ||
| setCustomCursor(); | ||
| } else { | ||
| clearCustomCursor(); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean mouseMoved (InputEvent event, float x, float y) { | ||
| super.mouseMoved(event, x, y); | ||
| if (handleBoundsContains(x, y)) { | ||
| setCustomCursor(); | ||
| } else { | ||
| clearCustomCursor(); | ||
| } | ||
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| return false; | ||
| } | ||
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| @Override | ||
| public void exit (InputEvent event, float x, float y, int pointer, Actor toActor) { | ||
| super.exit(event, x, y, pointer, toActor); | ||
| if (pointer == -1 && (toActor == null || toActor.isDescendantOf(owner) == false)) { | ||
| clearCustomCursor(); | ||
| } | ||
| } | ||
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| private void setCustomCursor () { | ||
| Cursor.SystemCursor targetCursor; | ||
| if (vertical) { | ||
| targetCursor = Cursor.SystemCursor.VerticalResize; | ||
| } else { | ||
| targetCursor = Cursor.SystemCursor.HorizontalResize; | ||
| } | ||
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| if (currentCursor != targetCursor) { | ||
| Gdx.graphics.setSystemCursor(targetCursor); | ||
| currentCursor = targetCursor; | ||
| } | ||
| } | ||
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| private void clearCustomCursor () { | ||
| if (currentCursor != null) { | ||
| CursorManager.restoreDefaultCursor(); | ||
| currentCursor = null; | ||
| } | ||
| } | ||
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| protected abstract boolean handleBoundsContains (float x, float y); | ||
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| protected abstract boolean contains (float x, float y); | ||
| } |