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103 lines
3.3 KiB
103 lines
3.3 KiB
package com.fine.theme.light.ui; |
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import com.fine.theme.utils.FineClientProperties; |
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import com.fine.theme.utils.FineUIScale; |
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import com.fine.theme.utils.FineUIUtils; |
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import com.formdev.flatlaf.ui.FlatComboBoxUI; |
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import com.formdev.flatlaf.ui.FlatUIUtils; |
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import javax.swing.JButton; |
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import javax.swing.JComboBox; |
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import javax.swing.JComponent; |
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import javax.swing.JScrollPane; |
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import javax.swing.ScrollPaneConstants; |
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import javax.swing.SwingConstants; |
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import javax.swing.plaf.ComponentUI; |
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import javax.swing.plaf.basic.ComboPopup; |
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import java.awt.Dimension; |
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import java.awt.Graphics2D; |
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import java.awt.Rectangle; |
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/** |
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* 提供 {@link javax.swing.JComboBox} 的UI类 |
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* |
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* @author Levy.Xie |
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* @since 11.0 |
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* Created on 2023/12/07 |
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*/ |
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public class FineComboBoxUI extends FlatComboBoxUI { |
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public static ComponentUI createUI(JComponent c) { |
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return new FineComboBoxUI(); |
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} |
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@Override |
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protected JButton createArrowButton() { |
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return new FineComboBoxButton(); |
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} |
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protected class FineComboBoxButton extends FlatComboBoxButton { |
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@Override |
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protected void paintArrow(Graphics2D g) { |
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if (isPopupVisible(comboBox)) { |
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setDirection(SwingConstants.NORTH); |
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} else { |
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setDirection(SwingConstants.SOUTH); |
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} |
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super.paintArrow(g); |
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} |
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} |
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@Override |
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public Dimension getMinimumSize(JComponent c) { |
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// ComboBox基于子组件计算适配尺寸性能一般，仅考虑部分ComboBox进行适配计算，其他采用默认值 |
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if (isAdaptiveComboBox(c)) { |
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Dimension dimension = super.getMinimumSize(c); |
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return new Dimension(Math.min(dimension.width, |
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FineUIUtils.getAndScaleInt("ComboBox.maximumWidth", 400)), dimension.height); |
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} |
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return FineUIScale.scale(new Dimension( |
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FlatUIUtils.getUIInt("ComboBox.minimumWidth", 72), |
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FlatUIUtils.getUIInt("ComboBox.comboHeight", 24) |
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)); |
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} |
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static boolean isAdaptiveComboBox(JComponent c) { |
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Object value = c.getClientProperty(FineClientProperties.COMBO_BOX_TYPE); |
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if (value instanceof String) { |
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return FineClientProperties.ADAPTIVE_COMBO_BOX.equals(value); |
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} |
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return false; |
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} |
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@Override |
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protected ComboPopup createPopup() { |
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return new FineComboPopup(this.comboBox); |
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} |
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protected class FineComboPopup extends FlatComboPopup { |
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protected FineComboPopup(JComboBox combo) { |
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super(combo); |
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} |
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@Override |
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protected Rectangle computePopupBounds(int px, int py, int pw, int ph) { |
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Rectangle fitRectangle = super.computePopupBounds(px, py, pw, ph); |
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// 限制最大宽度，如超出则高度预留展示横向滚动条所需宽度 |
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int comboWidth = comboBox.getWidth(); |
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if (fitRectangle.width > comboWidth) { |
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return new Rectangle(px, py, comboWidth, fitRectangle.height + FlatUIUtils.getUIInt("ScrollBar.width", 10)); |
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} |
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return fitRectangle; |
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} |
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@Override |
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protected JScrollPane createScroller() { |
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return new JScrollPane( list, |
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ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, |
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ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED); |
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} |
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} |
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}
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