java UI界面

1 按钮

Java代码

1. JButton btn= new JButton();

2. //设置按钮默认图标

3. btn.setIcon();

4. // 设置按钮按下图标

5. btn.setPressedIcon();

6. //设置按钮点击图标

7. btn.setRolloverIcon();

8. // 设置按钮无边框

9. btn.setBorderPainted(false);

10. //设置按钮背景透明

11. startbtn.setContentAreaFilled(false);

2 输入框

Java代码

1. //设置输入框透明

2. textfield.setOpaque(false);

3. // 设置输入框边框无

4. textfield.setBorder(new EmptyBorder(0,0,0,0));

3 修改滚动条样式
重写BasicScrollBarUI

Java代码

1. import java.awt.AlphaComposite;

2. import java.awt.Color;

3. import java.awt.Dimension;

4. import java.awt.GradientPaint;

5. import java.awt.Graphics;

6. import java.awt.Graphics2D;

7. import java.awt.Rectangle;

8. import java.awt.RenderingHints;

10. import javax.swing.ImageIcon;

11. import javax.swing.JButton;

12. import javax.swing.JComponent;

13. import javax.swing.JScrollBar;

14. import javax.swing.plaf.basic.BasicScrollBarUI;

15.

16. /**

17. * 自定义滚动条UI

18. *

19. * @author zsg

20. */

21. public class DemoScrollBarUI extends BasicScrollBarUI {

22.

23. @Override

24. protected void configureScrollBarColors() {

25. // 把手

26. // thumbColor = Color.GRAY;

27. // thumbHighlightColor = Color.BLUE;

28. // thumbDarkShadowColor = Color.BLACK;

29. // thumbLightShadowColor = Color.YELLOW;

30.

31. // 滑道

32. trackColor = Color.black;

33. setThumbBounds(0, 0, 3, 10);

34. // trackHighlightColor = Color.GREEN;

35. }

36.

37. /**

38. * 设置滚动条的宽度

39. */

40. @Override

41. public Dimension getPreferredSize(JComponent c) {

42. // TODO Auto-generated method stub

43. c.setPreferredSize(new Dimension(5, 0));

44. return super.getPreferredSize(c);

45. }

46.

47. // 重绘滑块的滑动区域背景

48. public void paintTrack(Graphics g, JComponent c, Rectangle trackBounds) {

49. Graphics2D g2 = (Graphics2D) g;

50. GradientPaint gp = null;

51. //判断滚动条是垂直的还是水平的

52. if (this.scrollbar.getOrientation() == JScrollBar.VERTICAL) {

53. //设置画笔

54. gp = new GradientPaint(0, 0, new Color(80, 80, 80),

55. trackBounds.width, 0, new Color(80, 80, 80));

56. }

57. if (this.scrollbar.getOrientation() == JScrollBar.HORIZONTAL) {

58. gp = new GradientPaint(0, 0, new Color(80, 80, 80),

59. trackBounds.height, 0, new Color(80, 80, 80));

60. }

61.

62. g2.setPaint(gp);

63. //填充Track

64. g2.fillRect(trackBounds.x, trackBounds.y, trackBounds.width,

65. trackBounds.height);

66. //绘制Track的边框

67. /* g2.setColor(new Color(175, 155, 95));

68. g2.drawRect(trackBounds.x, trackBounds.y, trackBounds.width - 1,

69. trackBounds.height - 1);

70. */

71. if (trackHighlight == BasicScrollBarUI.DECREASE_HIGHLIGHT)

72. this.paintDecreaseHighlight(g);

73. if (trackHighlight == BasicScrollBarUI.INCREASE_HIGHLIGHT)

74. this.paintIncreaseHighlight(g);

75. }

76.

77. @Override

78. protected void paintThumb(Graphics g, JComponent c, Rectangle thumbBounds) {

79. // 把绘制区的x，y点坐标定义为坐标系的原点

80. // 这句一定一定要加上啊，不然拖动就失效了

81. g.translate(thumbBounds.x, thumbBounds.y);

82. // 设置把手颜色

83. g.setColor(new Color(46, 46, 46));

84. // 画一个圆角矩形

85. // 这里面前四个参数就不多讲了，坐标和宽高

86. // 后两个参数需要注意一下，是用来控制角落的圆角弧度

87. // g.drawRoundRect(0, 0, 5, thumbBounds.height - 1, 5, 5);

88. // 消除锯齿

89. Graphics2D g2 = (Graphics2D) g;

90. RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING,

91. RenderingHints.VALUE_ANTIALIAS_ON);

92. g2.addRenderingHints(rh);

93. // 半透明

94. g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,

95. 0.5f));

96. // 设置填充颜色，这里设置了渐变，由下往上

97. // g2.setPaint(new GradientPaint(c.getWidth() / 2, 1, Color.GRAY,

98. // c.getWidth() / 2, c.getHeight(), Color.GRAY));

99. // 填充圆角矩形

100. g2.fillRoundRect(0, 0, 5, thumbBounds.height - 1, 5, 5);

101. }

102.

103. /**

104. * 创建滚动条上方的按钮

105. */

106. @Override

107. protected JButton createIncreaseButton(int orientation) {

108. JButton button = new JButton();

109. button.setBorderPainted(false);

110. button.setContentAreaFilled(false);

111. button.setBorder(null);

112. return button;

113. }

114.

115. /**

116. * 创建滚动条下方的按钮

117. */

118. @Override

119. protected JButton createDecreaseButton(int orientation) {

120. JButton button = new JButton();

121. button.setBorderPainted(false);

122. button.setContentAreaFilled(false);

123. button.setFocusable(false);

124. button.setBorder(null);

125. return button;

126. }

127.

128.

129.

130. }

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