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Side by Side Diff: tools/dom/templates/html/impl/impl_ClientRect.darttemplate

Issue 12493003: Exposing Point & Rect types (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Sync to ToT Created 7 years, 9 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 part of html; 5 part of $LIBRARYNAME;
6 6
7 /** 7 @DocsEditable
8 * A class for representing two-dimensional rectangles. 8 $(ANNOTATIONS)class $CLASSNAME implements Rect$IMPLEMENTS$NATIVESPEC {
9 */
10 class Rect {
11 final num left;
12 final num top;
13 final num width;
14 final num height;
15
16 Rect(this.left, this.top, this.width, this.height) {
17 if (width < 0) {
18 throw new ArgumentError(width);
19 }
20 if (height < 0) {
21 throw new ArgumentError(height);
22 }
23 }
24
25 factory Rect.fromPoints(Point a, Point b) {
26 var left;
27 var width;
28 if (a.x < b.x) {
29 left = a.x;
30 width = b.x - left;
31 } else {
32 left = b.x;
33 width = a.x - left;
34 }
35 var top;
36 var height;
37 if (a.y < b.y) {
38 top = a.y;
39 height = b.y - top;
40 } else {
41 top = b.y;
42 height = a.y - top;
43 }
44
45 return new Rect(left, top, width, height);
46 }
47
48 num get right => left + width;
49 num get bottom => top + height;
50 9
51 // NOTE! All code below should be common with Rect. 10 // NOTE! All code below should be common with Rect.
52 // TODO: implement with mixins when available. 11 // TODO(blois): implement with mixins when available.
53 12
54 String toString() { 13 String toString() {
55 return '($left, $top, $width, $height)'; 14 return '($left, $top, $width, $height)';
56 } 15 }
57 16
58 bool operator ==(other) { 17 bool operator ==(other) {
59 if (other is !Rect) return false; 18 if (other is !Rect) return false;
60 return left == other.left && top == other.top && width == other.width && 19 return left == other.left && top == other.top && width == other.width &&
61 height == other.height; 20 height == other.height;
62 } 21 }
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after
132 /** 91 /**
133 * Truncates coordinates to integers and returns the result as a new 92 * Truncates coordinates to integers and returns the result as a new
134 * rectangle. 93 * rectangle.
135 */ 94 */
136 Rect toInt() => new Rect(left.toInt(), top.toInt(), width.toInt(), 95 Rect toInt() => new Rect(left.toInt(), top.toInt(), width.toInt(),
137 height.toInt()); 96 height.toInt());
138 97
139 Point get topLeft => new Point(this.left, this.top); 98 Point get topLeft => new Point(this.left, this.top);
140 Point get bottomRight => new Point(this.left + this.width, 99 Point get bottomRight => new Point(this.left + this.width,
141 this.top + this.height); 100 this.top + this.height);
142 } 101 $!MEMBERS}
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