finished snap-to-grid

author: Patrick Simianer <p@simianer.de> 2015-08-26 12:04:32 +0200
committer: Patrick Simianer <p@simianer.de> 2015-08-26 12:04:32 +0200
commit: dbf290de2ed382fb245113da0550c0b7ce5f809b (patch)
tree: 518879fbdf97e490bd144d6df6cbfe4e7787c96c
parent: 07594bccda051ca54ebb52757f5968801c5775de (diff)
4 files changed, 94 insertions, 104 deletions
diff --git a/snap-to-grid.html b/snap-to-grid.html
new file mode 100644
index 0000000..c44b524
--- /dev/null
+++ b/snap-to-grid.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<!-- 2015-08-26 -->
+<html>
+<head>
+  <meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
+  <title>snap-to-grid</title>
+  <script src='raphael.js' type='text/javascript' charset='utf-8'></script>
+  <script src='snap-to-grid.js' type='text/javascript' charset='utf-8'></script>
+</head>
+<body>
+  <div id='holder'></div>
+  <p id='debug'></p>
+</body>
+</html>
+
diff --git a/snap-to-grid.js b/snap-to-grid.js
new file mode 100644
index 0000000..eee8cae
--- /dev/null
+++ b/snap-to-grid.js
@@ -0,0 +1,79 @@
+window.onload = function () {
+  var color, i, ii, tempS, tempT,
+    dragger = function ()
+    {
+      curDrag = this;
+      this.ox = this.type == "rect" ? this.attr("x") : this.attr("cx");
+      this.oy = this.type == "rect" ? this.attr("y") : this.attr("cy");
+    },
+    move = function (dx, dy)
+    {
+      var att = this.type == "rect" ? { x: this.ox + dx, y: this.oy } : { cx: this.ox + dx, cy: this.oy };
+      this.attr(att);
+      r.safari();
+    },
+    collide = function (obj)
+    {
+      document.getElementById("debug").innerHTML = curDrag["id"] + " <-> " + obj["id"]
+      if (curDrag["grid"] > obj["grid"]) {
+        if (curDrag.getBBox().width < obj.getBBox().width &&
+            curDrag.getBBox().x > (obj.getBBox().x+obj.getBBox().width/3)) {
+          return;
+        }
+        att = { x: obj.attr("x")+curDrag.getBBox().width+margin };
+        obj.attr(att);
+      } else {
+        if (curDrag.getBBox().width < obj.getBBox().width &&
+            curDrag.getBBox().x < (obj.getBBox().x+obj.getBBox().width/3)) {
+          return;
+        }
+        att = { x: obj.attr("x")-(curDrag.getBBox().width+margin) };
+        obj.attr(att);
+      }
+
+      var tmp = curDrag["grid"];
+      curDrag["grid"] = obj["grid"];
+      obj["grid"] = tmp;
+    },
+    up = function ()
+    {
+      snapToGrid(this);
+    },
+    snapToGrid = function (obj)
+    {
+      // just x coord, y is fixed in drag
+      var d = 0;
+      for (var i = 0; i < 4; i++) {
+        obj = null
+        for (var j = 0; j < shapes.length; j++) {
+          obj = shapesById[j];
+          if (obj["grid"] == i)
+            break;
+        }
+        att = {x:d};
+        obj.animate(att,250);
+        d += obj.getBBox().width+margin;
+      }
+    },
+    widths = [ 10, 128, 30, 40 ],
+    r = Raphael("holder", widths[0]+widths[1]+widths[2]+widths[3]+3*margin, 100),
+    fix_y = 50,
+    margin = 10,
+    shapes = [
+               r.rect(0,                                      fix_y, widths[0], 30, 0),
+               r.rect(widths[0]+margin,                       fix_y, widths[1], 30, 0),
+               r.rect(widths[0]+widths[1]+2*margin,           fix_y, widths[2], 30, 0),
+               r.rect(widths[0]+widths[1]+widths[2]+3*margin, fix_y, widths[3], 30, 0),
+             ],
+    colors = [ "#000", "#ccc", "#0f0", "#00f" ],
+    shapesById  = {},
+    curDrag = null;
+  for (var i = 0; i < shapes.length; i++) {
+    shapes[i].attr({fill: colors[i], cursor: "move"});
+    shapes[i].drag(move, dragger, up).onDragOver( function(a) { collide(a);});
+    shapes[i]["id"] = i;
+    shapes[i]["grid"] = i;
+    shapesById[i] = shapes[i];
+  }
+};
+
diff --git a/snaptogrid.html b/snaptogrid.html
deleted file mode 100644
index 5a2e622..0000000
--- a/snaptogrid.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html lang="en">
-<head>
-  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-  <title>derivation editor</title>
-  <script src="raphael.js" type="text/javascript" charset="utf-8"></script>
-  <script src="snaptogrid.js" type="text/javascript" charset="utf-8"></script>
-</head>
-<body>
-  <div id="holder"></div>
-  <p id="debug"></p>
-</body>
-</html>
-
diff --git a/snaptogrid.js b/snaptogrid.js
deleted file mode 100644
index cc2be8a..0000000
--- a/snaptogrid.js
+++ /dev/null
@@ -1,90 +0,0 @@
-var el;
-window.onload = function () {
-  var color, i, ii, tempS, tempT,
-    dragger = function ()
-    {
-      el = this;
-      this.ox = this.type == "rect" ? this.attr("x") : this.attr("cx");
-      this.oy = this.type == "rect" ? this.attr("y") : this.attr("cy");
-    },
-    move = function (dx, dy)
-    {
-      var att = this.type == "rect" ? {x: this.ox + dx, y: this.oy } : {cx: this.ox + dx, cy: this.oy };
-      this.attr(att);
-      r.safari();
-    },
-    collide = function (obj)
-    {
-      document.getElementById("debug").innerHTML = el["id"] + " <-> " + obj["id"]
-      ee = shapesById[obj["id"]];
-      if (el["grid"] > ee["grid"]) {
-        if (el.getBBox().width < obj.getBBox().width &&
-            el.getBBox().x > (obj.getBBox().x+obj.getBBox().width/2)) {
-          return;
-        }
-        att = {x: ee.attr("x")+el.getBBox().width+10};
-        ee.attr(att);
-      } else {
-        if (el.getBBox().width < obj.getBBox().width &&
-            el.getBBox().x < (obj.getBBox().x+obj.getBBox().width/2)) {
-          return;
-        }
-        att = {x: ee.attr("x")-(el.getBBox().width+10)};
-        ee.attr(att);
-      }
-
-      var tmp = el["grid"];
-      el["grid"] = obj["grid"];
-      obj["grid"] = tmp;
-    },
-    up = function ()
-    {
-      snapToGrid(this);
-    }
-    snapToGrid = function (obj)
-    {
-      // y
-      var sy = 50;
-      if (obj.getBBox().y != sy) {
-        att = {y: sy};
-        obj.animate(att, 250);
-      }
-      // x
-      /*if (el.getBBox().x != el["grid"]*70) {
-        att = {x:el["grid"]*70};
-        obj.animate(att,250);
-      }*/
-      
-      var d = 0;
-      for (var i = 0; i < 4; i++) {
-        obj = null
-        for (var j = 0; j < shapes.length; j++) {
-          obj = shapesById[j];
-          if (obj["grid"] == i)
-            break;
-        }
-        att = {x:d};
-        obj.animate(att,250);
-        d += obj.getBBox().width+10;
-      }
-    };
-  r = Raphael("holder", 280, 100),
-  xAnchors = [ 0, 20, 60, 130 ]
-  shapes = [
-             r.rect(xAnchors[0], 50, 10, 30, 0),
-             r.rect(xAnchors[1], 50, 30, 30, 0),
-             r.rect(xAnchors[2], 50, 60, 30, 0),
-             r.rect(xAnchors[3], 50, 30, 30, 0),
-           ];
-  colors = [ "#000", "#ccc", "#0f0", "#00f" ];
-  shapesById  = {};
-  for (var i = 0; i < shapes.length; i++) {
-    shapes[i].attr({fill: colors[i], cursor: "move"});
-    shapes[i].drag(move, dragger, up).onDragOver( function(a) { collide(a);});
-    shapes[i]["id"] = i;
-    shapes[i]["grid"] = i;
-    shapesById[i] = shapes[i];
-  }
-
-};
-
author	Patrick Simianer <p@simianer.de>	2015-08-26 12:04:32 +0200
committer	Patrick Simianer <p@simianer.de>	2015-08-26 12:04:32 +0200
commit	dbf290de2ed382fb245113da0550c0b7ce5f809b (patch)
tree	518879fbdf97e490bd144d6df6cbfe4e7787c96c
parent	07594bccda051ca54ebb52757f5968801c5775de (diff)