svn-gvsig-desktop / tags / v1_0_2_Build_903 / libraries / libIverUtiles / src / com / iver / utiles / console / jedit / SyntaxStyle.java @ 10704
History | View | Annotate | Download (3.06 KB)
1 | 4890 | caballero | package com.iver.utiles.console.jedit; |
---|---|---|---|
2 | /*
|
||
3 | * SyntaxStyle.java - A simple text style class
|
||
4 | * Copyright (C) 1999 Slava Pestov
|
||
5 | *
|
||
6 | * You may use and modify this package for any purpose. Redistribution is
|
||
7 | * permitted, in both source and binary form, provided that this notice
|
||
8 | * remains intact in all source distributions of this package.
|
||
9 | */
|
||
10 | |||
11 | 8765 | jjdelcerro | import java.awt.Color; |
12 | import java.awt.Font; |
||
13 | import java.awt.FontMetrics; |
||
14 | import java.awt.Graphics; |
||
15 | import java.awt.Toolkit; |
||
16 | 4890 | caballero | |
17 | /**
|
||
18 | * A simple text style class. It can specify the color, italic flag,
|
||
19 | * and bold flag of a run of text.
|
||
20 | * @author Slava Pestov
|
||
21 | * @version $Id$
|
||
22 | */
|
||
23 | public class SyntaxStyle |
||
24 | { |
||
25 | /**
|
||
26 | * Creates a new SyntaxStyle.
|
||
27 | * @param color The text color
|
||
28 | * @param italic True if the text should be italics
|
||
29 | * @param bold True if the text should be bold
|
||
30 | */
|
||
31 | public SyntaxStyle(Color color, boolean italic, boolean bold) |
||
32 | { |
||
33 | this.color = color;
|
||
34 | this.italic = italic;
|
||
35 | this.bold = bold;
|
||
36 | } |
||
37 | |||
38 | /**
|
||
39 | * Returns the color specified in this style.
|
||
40 | */
|
||
41 | public Color getColor() |
||
42 | { |
||
43 | return color;
|
||
44 | } |
||
45 | |||
46 | /**
|
||
47 | * Returns true if no font styles are enabled.
|
||
48 | */
|
||
49 | public boolean isPlain() |
||
50 | { |
||
51 | return !(bold || italic);
|
||
52 | } |
||
53 | |||
54 | /**
|
||
55 | * Returns true if italics is enabled for this style.
|
||
56 | */
|
||
57 | public boolean isItalic() |
||
58 | { |
||
59 | return italic;
|
||
60 | } |
||
61 | |||
62 | /**
|
||
63 | * Returns true if boldface is enabled for this style.
|
||
64 | */
|
||
65 | public boolean isBold() |
||
66 | { |
||
67 | return bold;
|
||
68 | } |
||
69 | |||
70 | /**
|
||
71 | * Returns the specified font, but with the style's bold and
|
||
72 | * italic flags applied.
|
||
73 | */
|
||
74 | public Font getStyledFont(Font font) |
||
75 | { |
||
76 | if(font == null) |
||
77 | throw new NullPointerException("font param must not" |
||
78 | + " be null");
|
||
79 | if(font.equals(lastFont))
|
||
80 | return lastStyledFont;
|
||
81 | lastFont = font; |
||
82 | lastStyledFont = new Font(font.getFamily(), |
||
83 | (bold ? Font.BOLD : 0) |
||
84 | | (italic ? Font.ITALIC : 0), |
||
85 | font.getSize()); |
||
86 | return lastStyledFont;
|
||
87 | } |
||
88 | |||
89 | /**
|
||
90 | * Returns the font metrics for the styled font.
|
||
91 | */
|
||
92 | public FontMetrics getFontMetrics(Font font) |
||
93 | { |
||
94 | if(font == null) |
||
95 | throw new NullPointerException("font param must not" |
||
96 | + " be null");
|
||
97 | if(font.equals(lastFont) && fontMetrics != null) |
||
98 | return fontMetrics;
|
||
99 | lastFont = font; |
||
100 | lastStyledFont = new Font(font.getFamily(), |
||
101 | (bold ? Font.BOLD : 0) |
||
102 | | (italic ? Font.ITALIC : 0), |
||
103 | font.getSize()); |
||
104 | fontMetrics = Toolkit.getDefaultToolkit().getFontMetrics(
|
||
105 | lastStyledFont); |
||
106 | return fontMetrics;
|
||
107 | } |
||
108 | |||
109 | /**
|
||
110 | * Sets the foreground color and font of the specified graphics
|
||
111 | * context to that specified in this style.
|
||
112 | * @param gfx The graphics context
|
||
113 | * @param font The font to add the styles to
|
||
114 | */
|
||
115 | public void setGraphicsFlags(Graphics gfx, Font font) |
||
116 | { |
||
117 | Font _font = getStyledFont(font);
|
||
118 | gfx.setFont(_font); |
||
119 | gfx.setColor(color); |
||
120 | } |
||
121 | |||
122 | /**
|
||
123 | * Returns a string representation of this object.
|
||
124 | */
|
||
125 | public String toString() |
||
126 | { |
||
127 | return getClass().getName() + "[color=" + color + |
||
128 | (italic ? ",italic" : "") + |
||
129 | (bold ? ",bold" : "") + "]"; |
||
130 | } |
||
131 | |||
132 | // private members
|
||
133 | private Color color; |
||
134 | private boolean italic; |
||
135 | private boolean bold; |
||
136 | private Font lastFont; |
||
137 | private Font lastStyledFont; |
||
138 | private FontMetrics fontMetrics; |
||
139 | } |