52 |
*/ |
*/ |
53 |
public class JPanel extends JComponent implements Accessible |
public class JPanel extends JComponent implements Accessible |
54 |
{ |
{ |
55 |
public JPanel() |
public JPanel() |
56 |
{ |
{ |
57 |
this(new FlowLayout(), |
this(new FlowLayout(), true); |
58 |
true); |
} |
59 |
} |
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60 |
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public JPanel(boolean double_buffered) |
61 |
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{ |
62 |
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this(new FlowLayout(), double_buffered); |
63 |
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} |
64 |
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65 |
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public JPanel(LayoutManager layout) |
66 |
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{ |
67 |
|
this(layout, true); |
68 |
|
} |
69 |
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70 |
|
public JPanel(LayoutManager layout, boolean isDoubleBuffered) |
71 |
|
{ |
72 |
|
if (layout == null) |
73 |
|
{ |
74 |
|
// TODO: Is this correct? Or should we throw a NPE? |
75 |
|
layout = new FlowLayout(); |
76 |
|
} |
77 |
|
setLayout(layout); |
78 |
|
setOpaque(true); |
79 |
|
|
80 |
|
updateUI(); |
81 |
|
} |
82 |
|
|
83 |
|
public String getUIClassID() |
84 |
|
{ |
85 |
|
return "PanelUI"; |
86 |
|
} |
87 |
|
|
88 |
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public void setUI(PanelUI ui) |
89 |
|
{ |
90 |
|
super.setUI(ui); |
91 |
|
} |
92 |
|
|
93 |
|
public PanelUI getUI() |
94 |
|
{ |
95 |
|
return (PanelUI) ui; |
96 |
|
} |
97 |
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|
98 |
|
public void updateUI() |
99 |
|
{ |
100 |
|
setUI((PanelUI) UIManager.getUI(this)); |
101 |
|
} |
102 |
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|
103 |
|
public AccessibleContext getAccessibleContext() |
104 |
|
{ |
105 |
|
return null; |
106 |
|
} |
107 |
|
|
108 |
public JPanel(boolean double_buffered) |
protected String paramString() |
109 |
{ |
{ |
|
this(new FlowLayout(), |
|
|
double_buffered); |
|
|
} |
|
|
|
|
|
public JPanel(LayoutManager layout) |
|
|
{ |
|
|
this(layout, |
|
|
true); |
|
|
} |
|
|
|
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|
|
|
|
public JPanel(LayoutManager layout, |
|
|
boolean isDoubleBuffered) |
|
|
{ |
|
|
if (layout == null) |
|
|
{ |
|
|
System.err.println("NO LAYOUT SET !!!"); |
|
|
layout = new FlowLayout(); |
|
|
} |
|
|
setLayout(layout); |
|
|
setOpaque(true); |
|
|
|
|
|
updateUI(); |
|
|
} |
|
|
|
|
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public String getUIClassID() |
|
|
{ return "PanelUI"; } |
|
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|
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|
|
|
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public void setUI(PanelUI ui) { |
|
|
super.setUI(ui); |
|
|
} |
|
|
|
|
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public PanelUI getUI() { |
|
|
return (PanelUI)ui; |
|
|
} |
|
|
|
|
|
public void updateUI() { |
|
|
setUI((PanelUI)UIManager.getUI(this)); |
|
|
} |
|
|
|
|
|
|
|
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public AccessibleContext getAccessibleContext() |
|
|
{ |
|
|
return null; |
|
|
} |
|
|
|
|
|
protected String paramString() |
|
|
{ |
|
110 |
return "JPanel"; |
return "JPanel"; |
111 |
} |
} |
112 |
} |
} |