93 *
94 * @param sd SurfaceData to be removed from the list of managed surfaces
95 */
96 public void dropScreenSurface(SurfaceData sd) {}
97
98 /**
99 * Returns a replacement SurfaceData for the invalid passed one.
100 *
101 * This method should be used by SurfaceData's created by
102 * the ScreenUpdateManager for providing replacement surfaces.
103 *
104 * @param peer to which the old surface belongs
105 * @param oldsd the old (invalid) surface to get replaced
106 * @return a replacement surface
107 * @see sun.java2d.d3d.D3DSurfaceData.D3DWindowSurfaceData#getReplacement()
108 * @see sun.java2d.windows.GDIWindowSurfaceData#getReplacement()
109 */
110 public SurfaceData getReplacementScreenSurface(WComponentPeer peer,
111 SurfaceData oldsd)
112 {
113 return peer.getSurfaceData();
114 }
115
116 /**
117 * Returns an (singleton) instance of the screen surfaces
118 * manager class.
119 * @return instance of onscreen surfaces manager
120 */
121 public static synchronized ScreenUpdateManager getInstance() {
122 if (theInstance == null) {
123 if (WindowsFlags.isD3DEnabled()) {
124 theInstance = new D3DScreenUpdateManager();
125 } else {
126 theInstance = new ScreenUpdateManager();
127 }
128 }
129 return theInstance;
130 }
131 }
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93 *
94 * @param sd SurfaceData to be removed from the list of managed surfaces
95 */
96 public void dropScreenSurface(SurfaceData sd) {}
97
98 /**
99 * Returns a replacement SurfaceData for the invalid passed one.
100 *
101 * This method should be used by SurfaceData's created by
102 * the ScreenUpdateManager for providing replacement surfaces.
103 *
104 * @param peer to which the old surface belongs
105 * @param oldsd the old (invalid) surface to get replaced
106 * @return a replacement surface
107 * @see sun.java2d.d3d.D3DSurfaceData.D3DWindowSurfaceData#getReplacement()
108 * @see sun.java2d.windows.GDIWindowSurfaceData#getReplacement()
109 */
110 public SurfaceData getReplacementScreenSurface(WComponentPeer peer,
111 SurfaceData oldsd)
112 {
113 if (!peer.getSurfaceData().isValid()) {
114 peer.replaceSurfaceData();
115 }
116 return peer.getSurfaceData();
117 }
118
119 /**
120 * Returns an (singleton) instance of the screen surfaces
121 * manager class.
122 * @return instance of onscreen surfaces manager
123 */
124 public static synchronized ScreenUpdateManager getInstance() {
125 if (theInstance == null) {
126 if (WindowsFlags.isD3DEnabled()) {
127 theInstance = new D3DScreenUpdateManager();
128 } else {
129 theInstance = new ScreenUpdateManager();
130 }
131 }
132 return theInstance;
133 }
134 }
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