1 files changed, 245 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Geometry.js b/Source/WebInspectorUI/UserInterface/Geometry.js
new file mode 100644
index 000000000..ababb2870
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Geometry.js
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2013 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.Point = function(x, y)
+{
+    this.x = x || 0;
+    this.y = y || 0;
+};
+
+WebInspector.Point.fromEvent = function(event)
+{
+    return new WebInspector.Point(event.pageX, event.pageY);
+};
+
+WebInspector.Point.fromEventInElement = function(event, element)
+{
+    var wkPoint = window.webkitConvertPointFromPageToNode(element, new WebKitPoint(event.pageX, event.pageY));
+    return new WebInspector.Point(wkPoint.x, wkPoint.y);
+};
+
+WebInspector.Point.prototype = {
+    constructor: WebInspector.Point,
+
+    toString : function()
+    {
+        return "WebInspector.Point[" + this.x + "," + this.y + "]";
+    },
+
+    copy: function()
+    {
+        return new WebInspector.Point(this.x, this.y);
+    },
+
+    equals: function(anotherPoint)
+    {
+        return (this.x === anotherPoint.x && this.y === anotherPoint.y);
+    }
+};
+
+WebInspector.Size = function(width, height)
+{
+    this.width = width || 0;
+    this.height = height || 0;
+};
+
+WebInspector.Size.prototype = {
+    constructor: WebInspector.Size,
+
+    toString: function()
+    {
+        return "WebInspector.Size[" + this.width + "," + this.height + "]";
+    },
+
+    copy: function()
+    {
+        return new WebInspector.Size(this.width, this.height);
+    },
+
+    equals: function(anotherSize)
+    {
+        return (this.width === anotherSize.width && this.height === anotherSize.height);
+    }
+};
+
+WebInspector.Size.ZERO_SIZE = new WebInspector.Size(0, 0);
+
+
+WebInspector.Rect = function(x, y, width, height)
+{
+    this.origin = new WebInspector.Point(x || 0, y || 0);
+    this.size = new WebInspector.Size(width || 0, height || 0);
+};
+
+WebInspector.Rect.rectFromClientRect = function(clientRect)
+{
+    return new WebInspector.Rect(clientRect.left, clientRect.top, clientRect.width, clientRect.height);
+};
+
+WebInspector.Rect.prototype = {
+    constructor: WebInspector.Rect,
+
+    toString: function()
+    {
+        return "WebInspector.Rect[" + [this.origin.x, this.origin.y, this.size.width, this.size.height].join(", ") + "]";
+    },
+
+    copy: function()
+    {
+        return new WebInspector.Rect(this.origin.x, this.origin.y, this.size.width, this.size.height);
+    },
+
+    equals: function(anotherRect)
+    {
+        return (this.origin.equals(anotherRect.origin) && this.size.equals(anotherRect.size));
+    },
+
+    inset: function(insets)
+    {
+        return new WebInspector.Rect(
+            this.origin.x + insets.left,
+            this.origin.y + insets.top,
+            this.size.width - insets.left - insets.right,
+            this.size.height - insets.top - insets.bottom
+        );
+    },
+
+    minX: function()
+    {
+        return this.origin.x;
+    },
+
+    minY: function()
+    {
+        return this.origin.y;
+    },
+
+    midX: function()
+    {
+        return this.origin.x + (this.size.width / 2);
+    },
+
+    midY: function()
+    {
+        return this.origin.y + (this.size.height / 2);
+    },
+
+    maxX: function()
+    {
+        return this.origin.x + this.size.width;
+    },
+
+    maxY: function()
+    {
+        return this.origin.y + this.size.height;
+    },
+
+    intersectionWithRect: function(rect)
+    {
+        var x1 = Math.max(this.minX(), rect.minX());
+        var x2 = Math.min(this.maxX(), rect.maxX());
+        if (x1 > x2)
+            return WebInspector.Rect.ZERO_RECT;
+        var intersection = new WebInspector.Rect;
+        intersection.origin.x = x1;
+        intersection.size.width = x2 - x1;
+        var y1 = Math.max(this.minY(), rect.minY());
+        var y2 = Math.min(this.maxY(), rect.maxY());
+        if (y1 > y2)
+            return WebInspector.Rect.ZERO_RECT;
+        intersection.origin.y = y1;
+        intersection.size.height = y2 - y1;
+        return intersection;
+    }
+};
+
+WebInspector.Rect.ZERO_RECT = new WebInspector.Rect(0, 0, 0, 0);
+
+
+WebInspector.EdgeInsets = function(top, right, bottom, left)
+{
+    console.assert(arguments.length === 1 || arguments.length === 4);
+
+    if (arguments.length === 1) {
+        this.top = top;
+        this.right = top;
+        this.bottom = top;
+        this.left = top;
+    } else if (arguments.length === 4) {
+        this.top = top;
+        this.right = right;
+        this.bottom = bottom;
+        this.left = left;
+    }
+};
+
+WebInspector.EdgeInsets.prototype = {
+    constructor: WebInspector.EdgeInsets,
+
+    equals: function(anotherInset)
+    {
+        return (this.top === anotherInset.top && this.right === anotherInset.right &&
+                this.bottom === anotherInset.bottom && this.left === anotherInset.left);
+    },
+
+    copy: function()
+    {
+        return new WebInspector.EdgeInsets(this.top, this.right, this.bottom, this.left);
+    }
+};
+
+WebInspector.RectEdge = {
+    MIN_X : 0,
+    MIN_Y : 1,
+    MAX_X : 2,
+    MAX_Y : 3
+};
+
+WebInspector.Quad = function(quad)
+{
+    this.points = [
+        new WebInspector.Point(quad[0], quad[1]), // top left
+        new WebInspector.Point(quad[2], quad[3]), // top right
+        new WebInspector.Point(quad[4], quad[5]), // bottom right
+        new WebInspector.Point(quad[6], quad[7])  // bottom left
+    ];
+
+    this.width = Math.round(Math.sqrt(Math.pow(quad[0] - quad[2], 2) + Math.pow(quad[1] - quad[3], 2)));
+    this.height = Math.round(Math.sqrt(Math.pow(quad[0] - quad[6], 2) + Math.pow(quad[1] - quad[7], 2)));
+};
+
+WebInspector.Quad.prototype = {
+    constructor: WebInspector.Quad,
+
+    toProtocol: function()
+    {
+        return [
+            this.points[0].x, this.points[0].y,
+            this.points[1].x, this.points[1].y,
+            this.points[2].x, this.points[2].y,
+            this.points[3].x, this.points[3].y
+        ];
+    }
+};