Properly resize board arrows when the board updates.

[remoteglot] / www / js / remoteglot.js

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 114aaad67da76db36e420590d9c0b7c417a98d3a..c8310fabcc3d613e2c94dc05a5f61faabcff6419 100644 (file)
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -14,7 +14,8 @@ var request_update = function(board, first) {
 
 var clear_arrows = function() {
        for (var i = 0; i < arrows.length; ++i) {
-               jsPlumb.detach(arrows[i]);
+               jsPlumb.detach(arrows[i].connection1);
+               jsPlumb.detach(arrows[i].connection2);
        }
        arrows = [];
 
@@ -29,6 +30,12 @@ var clear_arrows = function() {
        }
 }
 
+var redraw_arrows = function() {
+       for (var i = 0; i < arrows.length; ++i) {
+               position_arrow(arrows[i]);
+       }
+}
+
 var sign = function(x) {
        if (x > 0) {
                return 1;
@@ -79,42 +86,38 @@ var add_target = function() {
        arrow_targets.push(elem);
        return elem.id;
 }
-
-var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_size) {
-       var from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0);
-       var from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1);
-       var to_col   = to_square.charCodeAt(0) - "a1".charCodeAt(0);
-       var to_row   = to_square.charCodeAt(1) - "a1".charCodeAt(1);
-
+       
+var position_arrow = function(arrow) {
        var zoom_factor = $("#board").width() / 400.0;
-       line_width *= zoom_factor;
-       arrow_size *= zoom_factor;
+       var line_width = arrow.line_width * zoom_factor;
+       var arrow_size = arrow.arrow_size * zoom_factor;
 
        var square_width = Math.floor(($("#board").width() - 1) / 8);
-       var from_y = (7 - from_row + 0.5)*square_width + 1;
-       var to_y = (7 - to_row + 0.5)*square_width + 1;
-       var from_x = (from_col + 0.5)*square_width + 1;
-       var to_x = (to_col + 0.5)*square_width + 1;
+       var from_y = (7 - arrow.from_row + 0.5)*square_width + 1;
+       var to_y = (7 - arrow.to_row + 0.5)*square_width + 1;
+       var from_x = (arrow.from_col + 0.5)*square_width + 1;
+       var to_x = (arrow.to_col + 0.5)*square_width + 1;
 
        var dx = to_x - from_x;
        var dy = to_y - from_y;
        var len = Math.sqrt(dx * dx + dy * dy);
        dx /= len;
        dy /= len;
-
-       // Create arrow.
-       var s1 = add_target();
-       var d1 = add_target();
-       var s1v = add_target();
-       var d1v = add_target();
        var pos = $("#board").position();
-       $("#" + s1).css({ top: pos.top + from_y + (0.5 * arrow_size) * dy, left: pos.left + from_x + (0.5 * arrow_size) * dx });
-       $("#" + d1).css({ top: pos.top + to_y - (0.5 * arrow_size) * dy, left: pos.left + to_x - (0.5 * arrow_size) * dx });
-       $("#" + s1v).css({ top: pos.top + from_y - 0 * dy, left: pos.left + from_x - 0 * dx });
-       $("#" + d1v).css({ top: pos.top + to_y + 0 * dy, left: pos.left + to_x + 0 * dx });
-       var connection1 = jsPlumb.connect({
-               source: s1,
-               target: d1,
+       $("#" + arrow.s1).css({ top: pos.top + from_y + (0.5 * arrow_size) * dy, left: pos.left + from_x + (0.5 * arrow_size) * dx });
+       $("#" + arrow.d1).css({ top: pos.top + to_y - (0.5 * arrow_size) * dy, left: pos.left + to_x - (0.5 * arrow_size) * dx });
+       $("#" + arrow.s1v).css({ top: pos.top + from_y - 0 * dy, left: pos.left + from_x - 0 * dx });
+       $("#" + arrow.d1v).css({ top: pos.top + to_y + 0 * dy, left: pos.left + to_x + 0 * dx });
+
+       if (arrow.connection1) {
+               jsPlumb.detach(arrow.connection1);
+       }
+       if (arrow.connection2) {
+               jsPlumb.detach(arrow.connection2);
+       }
+       arrow.connection1 = jsPlumb.connect({
+               source: arrow.s1,
+               target: arrow.d1,
                connector:["Straight"],
                cssClass:"c1",
                endpoint:"Blank",
@@ -122,15 +125,15 @@ var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_
                anchor:"Continuous",
                paintStyle:{ 
                        lineWidth:line_width,
-                       strokeStyle:fg_color,
+                       strokeStyle:arrow.fg_color,
                        outlineWidth:1,
                        outlineColor:"#666",
                        opacity:"60%"
                }
-       });            
-       var connection2 = jsPlumb.connect({
-               source: s1v,
-               target: d1v,
+       });
+       arrow.connection2 = jsPlumb.connect({
+               source: arrow.s1v,
+               target: arrow.d1v,
                connector:["Straight"],
                cssClass:"vir",
                endpoint:"Blank",
@@ -138,7 +141,7 @@ var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_
                anchor:"Continuous",
                paintStyle:{ 
                        lineWidth:0,
-                       strokeStyle:fg_color,
+                       strokeStyle:arrow.fg_color,
                        outlineWidth:0,
                        outlineColor:"#666",
                },
@@ -148,15 +151,38 @@ var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_
                                location:1.0,
                                width: arrow_size,
                                length: arrow_size,
-                               paintStyle:{ 
+                               paintStyle: { 
                                        lineWidth:line_width,
                                        strokeStyle:"#000",
                                },
                        }]
                ]
        });
-       arrows.push(connection1);
-       arrows.push(connection2);
+}
+
+var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_size) {
+       var from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0);
+       var from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1);
+       var to_col   = to_square.charCodeAt(0) - "a1".charCodeAt(0);
+       var to_row   = to_square.charCodeAt(1) - "a1".charCodeAt(1);
+
+       // Create arrow.
+       var arrow = {
+               s1: add_target(),
+               d1: add_target(),
+               s1v: add_target(),
+               d1v: add_target(),
+               from_col: from_col,
+               from_row: from_row,
+               to_col: to_col,
+               to_row: to_row,
+               line_width: line_width,
+               arrow_size: arrow_size, 
+               fg_color: fg_color
+       };
+
+       position_arrow(arrow);
+       arrows.push(arrow);
 }
 
 // Fake multi-PV using the refutation lines. Find all “relevant” moves,
@@ -388,6 +414,9 @@ var init = function() {
        board = new ChessBoard('board', 'start');
 
        request_update(board, 1);
-
+       $(window).resize(function() {
+               board.resize();
+               redraw_arrows();
+       });
 };
 $(document).ready(init);