svn-gvsig-desktop / tags / v1_0_2_Build_897 / libraries / libIverUtiles / src / com / iver / utiles / console / jedit / SyntaxStyle.java @ 10444
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1 | 4890 | caballero | package com.iver.utiles.console.jedit; |
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2 | /*
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3 | * SyntaxStyle.java - A simple text style class
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4 | * Copyright (C) 1999 Slava Pestov
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5 | *
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6 | * You may use and modify this package for any purpose. Redistribution is
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7 | * permitted, in both source and binary form, provided that this notice
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8 | * remains intact in all source distributions of this package.
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9 | */
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10 | |||
11 | 8765 | jjdelcerro | import java.awt.Color; |
12 | import java.awt.Font; |
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13 | import java.awt.FontMetrics; |
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14 | import java.awt.Graphics; |
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15 | import java.awt.Toolkit; |
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16 | 4890 | caballero | |
17 | /**
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18 | * A simple text style class. It can specify the color, italic flag,
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19 | * and bold flag of a run of text.
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20 | * @author Slava Pestov
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21 | * @version $Id$
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22 | */
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23 | public class SyntaxStyle |
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24 | { |
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25 | /**
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26 | * Creates a new SyntaxStyle.
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27 | * @param color The text color
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28 | * @param italic True if the text should be italics
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29 | * @param bold True if the text should be bold
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30 | */
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31 | public SyntaxStyle(Color color, boolean italic, boolean bold) |
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32 | { |
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33 | this.color = color;
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34 | this.italic = italic;
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35 | this.bold = bold;
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36 | } |
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37 | |||
38 | /**
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39 | * Returns the color specified in this style.
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40 | */
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41 | public Color getColor() |
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42 | { |
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43 | return color;
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44 | } |
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45 | |||
46 | /**
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47 | * Returns true if no font styles are enabled.
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48 | */
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49 | public boolean isPlain() |
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50 | { |
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51 | return !(bold || italic);
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52 | } |
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53 | |||
54 | /**
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55 | * Returns true if italics is enabled for this style.
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56 | */
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57 | public boolean isItalic() |
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58 | { |
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59 | return italic;
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60 | } |
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61 | |||
62 | /**
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63 | * Returns true if boldface is enabled for this style.
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64 | */
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65 | public boolean isBold() |
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66 | { |
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67 | return bold;
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68 | } |
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69 | |||
70 | /**
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71 | * Returns the specified font, but with the style's bold and
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72 | * italic flags applied.
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73 | */
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74 | public Font getStyledFont(Font font) |
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75 | { |
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76 | if(font == null) |
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77 | throw new NullPointerException("font param must not" |
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78 | + " be null");
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79 | if(font.equals(lastFont))
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80 | return lastStyledFont;
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81 | lastFont = font; |
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82 | lastStyledFont = new Font(font.getFamily(), |
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83 | (bold ? Font.BOLD : 0) |
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84 | | (italic ? Font.ITALIC : 0), |
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85 | font.getSize()); |
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86 | return lastStyledFont;
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87 | } |
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88 | |||
89 | /**
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90 | * Returns the font metrics for the styled font.
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91 | */
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92 | public FontMetrics getFontMetrics(Font font) |
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93 | { |
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94 | if(font == null) |
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95 | throw new NullPointerException("font param must not" |
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96 | + " be null");
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97 | if(font.equals(lastFont) && fontMetrics != null) |
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98 | return fontMetrics;
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99 | lastFont = font; |
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100 | lastStyledFont = new Font(font.getFamily(), |
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101 | (bold ? Font.BOLD : 0) |
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102 | | (italic ? Font.ITALIC : 0), |
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103 | font.getSize()); |
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104 | fontMetrics = Toolkit.getDefaultToolkit().getFontMetrics(
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105 | lastStyledFont); |
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106 | return fontMetrics;
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107 | } |
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108 | |||
109 | /**
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110 | * Sets the foreground color and font of the specified graphics
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111 | * context to that specified in this style.
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112 | * @param gfx The graphics context
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113 | * @param font The font to add the styles to
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114 | */
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115 | public void setGraphicsFlags(Graphics gfx, Font font) |
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116 | { |
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117 | Font _font = getStyledFont(font);
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118 | gfx.setFont(_font); |
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119 | gfx.setColor(color); |
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120 | } |
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121 | |||
122 | /**
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123 | * Returns a string representation of this object.
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124 | */
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125 | public String toString() |
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126 | { |
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127 | return getClass().getName() + "[color=" + color + |
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128 | (italic ? ",italic" : "") + |
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129 | (bold ? ",bold" : "") + "]"; |
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130 | } |
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131 | |||
132 | // private members
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133 | private Color color; |
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134 | private boolean italic; |
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135 | private boolean bold; |
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136 | private Font lastFont; |
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137 | private Font lastStyledFont; |
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138 | private FontMetrics fontMetrics; |
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139 | } |