1 /*
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8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
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11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
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24  */
25 
26 #ifndef AWT_LABEL_H
27 #define AWT_LABEL_H
28 
29 #include "awt_Component.h"
30 
31 #include "java_awt_Label.h"
32 #include "sun_awt_windows_WLabelPeer.h"
33 
34 
35 /************************************************************************
36  * AwtLabel class
37  */
38 
39 class AwtLabel : public AwtComponent {
40 public:
41     /*
42      * java.awt.Label fields
43      */
44     static jfieldID textID;
45     static jfieldID alignmentID;
46 
47     AwtLabel();
48 
49     virtual LPCTSTR GetClassName();
50 
51     static AwtLabel* Create(jobject label, jobject parent);
52 
53     /*
54      * Windows message handler functions
55      */
56     virtual MsgRouting WmPaint(HDC hDC);
57     virtual MsgRouting WmPrintClient(HDC hDC, LPARAM flags);
58     virtual MsgRouting WmEraseBkgnd(HDC hDC, BOOL& didErase);
59 
60     /*
61      * if WM_PAINT was recieving when we can not paint
62      * then setup m_needPaint end when can call this function
63      */
64     void LazyPaint();
65      /*
66       * Enable/disable component
67       */
68     virtual void Enable(BOOL bEnable);
69 
70     // some methods called on Toolkit thread
71     static void _SetText(void *param);
72     static void _SetAlignment(void *param);
73     static void _LazyPaint(void *param);
74 
75 private:
76     BOOL m_needPaint; // flags for lazy paint of Label
77 
78     void DoPaint(HDC hDC, RECT& r);
79 };
80 
81 #endif /* AWT_LABEL_H */
82