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comparison dwt/graphics/Resource.d @ 213:36f5cb12e1a2

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Update to SWT 3.4M7
author Frank Benoit <benoit@tionex.de>
date Sat, 17 May 2008 17:34:28 +0200
parents f906dbcacee5
children fd9c62a2998e
comparison
equal deleted inserted replaced
212:ab60f3309436 213:36f5cb12e1a2
42 /** 42 /**
43 * the device where this resource was created 43 * the device where this resource was created
44 */ 44 */
45 Device device; 45 Device device;
46 46
47 this() {
48 }
49
50 this(Device device) {
51 if (device is null) device = Device.getDevice();
52 if (device is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
53 this.device = device;
54 }
55
56 void destroy() {
57 }
58
47 /** 59 /**
48 * Disposes of the operating system resources associated with 60 * Disposes of the operating system resources associated with
49 * this resource. Applications must dispose of all resources 61 * this resource. Applications must dispose of all resources
50 * which they allocate. 62 * which they allocate.
51 */ 63 */
52 public abstract void dispose(); 64 public void dispose() {
65 if (device is null) return;
66 if (device.isDisposed()) return;
67 destroy();
68 if (device.tracking) device.dispose_Object(this);
69 device = null;
70 }
53 71
54 /** 72 /**
55 * Returns the <code>Device</code> where this resource was 73 * Returns the <code>Device</code> where this resource was
56 * created. 74 * created.
57 * 75 *
63 Device device = this.device; 81 Device device = this.device;
64 if (device is null || isDisposed ()) DWT.error (DWT.ERROR_GRAPHIC_DISPOSED); 82 if (device is null || isDisposed ()) DWT.error (DWT.ERROR_GRAPHIC_DISPOSED);
65 return device; 83 return device;
66 } 84 }
67 85
86 void init_() {
87 if (device.tracking) device.new_Object(this);
88 }
89
68 /** 90 /**
69 * Returns <code>true</code> if the resource has been disposed, 91 * Returns <code>true</code> if the resource has been disposed,
70 * and <code>false</code> otherwise. 92 * and <code>false</code> otherwise.
71 * <p> 93 * <p>
72 * This method gets the dispose state for the resource. 94 * This method gets the dispose state for the resource.