Here you can find the source of setSplitDivider(final JSplitPane split, float proportion)
JSplitPane divider to the specified proportion.
| Parameter | Description |
|---|---|
| split | the <code>JSplitPane</code> whose divider location is to be set. |
| proportion | a double-precision floating point value that specifies a percentage, from zero (top/left) to 1.0 (bottom/right) |
public static void setSplitDivider(final JSplitPane split, float proportion)
//package com.java2s; /*// ww w.j a va 2 s. com * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import java.awt.EventQueue; import javax.swing.JSplitPane; public class Main { /** * Moves the supplied <code>JSplitPane</code> divider to the specified <code>proportion</code>. * Valid values for <code>proportion</code> range from <code>0.0F</code> * to <code>1.0F</code>. For example, a <code>proportion</code> of <code>0.3F</code> will move the * divider to 30% of the "size" (<i>width</i> for horizontal split, <i>height</i> for vertical split) of the * split container that contains the specified <code>Dockable</code>. If a <code>proportion</code> of less * than <code>0.0F</code> is supplied, the value <code>0.0F</code> is used. If a <code>proportion</code> * greater than <code>1.0F</code> is supplied, the value <code>1.0F</code> is used. * * This method should be effective regardless of whether the split layout in question has been fully realized * and is currently visible on the screen. This should alleviate common problems associated with setting * percentages of unrealized <code>Component</code> dimensions, which are initially <code>0x0</code> before * the <code>Component</code> has been rendered to the screen. * * If the specified <code>JSplitPane</code> is <code>null</code>, then this method returns with no action * taken. * * @param split the <code>JSplitPane</code> whose divider location is to be set. * @param proportion a double-precision floating point value that specifies a percentage, * from zero (top/left) to 1.0 (bottom/right) * @see #getSplitPaneSize(JSplitPane) * @see JSplitPane#setDividerLocation(double) */ public static void setSplitDivider(final JSplitPane split, float proportion) { if (split == null) { return; } proportion = Math.max(0f, proportion); final float percent = Math.min(1f, proportion); int size = getSplitPaneSize(split); if (split.isVisible() && size > 0 && EventQueue.isDispatchThread()) { split.setDividerLocation(proportion); split.validate(); return; } EventQueue.invokeLater(new Runnable() { @Override public void run() { setSplitDivider(split, percent); } }); } public static int getSplitPaneSize(JSplitPane splitPane) { if (splitPane == null) { return 0; } boolean horiz = splitPane.getOrientation() == JSplitPane.HORIZONTAL_SPLIT ? true : false; return horiz ? splitPane.getWidth() : splitPane.getHeight(); } }