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feature: add support for box and label in highlight layer

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This commit is contained in:
BigEd 2010-12-20 19:00:44 +00:00
parent 6db8836c5c
commit c88e0749cf
2 changed files with 70 additions and 0 deletions
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57
expertWires.js
View File

@ -310,6 +310,57 @@ function updateLinkHere(){
document.getElementById('linkHere').href=target;
}
// place a text label on the highlight layer
// with an optional box around an area of interest
// coordinates used are those reported by a click
// for example:
// boxLabel(['PD', 50, 8424, 3536, 9256, 2464])
// boxLabel(['IR', 50, 8432, 2332, 9124, 984])
// boxLabel(['PLA', 100, 1169, 2328, 8393, 934])
// boxLabel(['Y', 50, 2143, 8820, 2317, 5689])
// boxLabel(['X', 50, 2317, 8820, 2490, 5689])
// boxLabel(['S', 50, 2490, 8820, 2814, 5689])
// boxLabel(['ALU', 50, 2814, 8820, 4525, 5689])
// boxLabel(['DAdj', 40, 4525, 8820, 5040, 5689])
// boxLabel(['A', 50, 5040, 8820, 5328, 5689])
// boxLabel(['PC', 50, 5559, 8820, 6819, 5689])
// boxLabel(['ID', 50, 7365, 8820, 7676, 5689])
// boxLabel(['TimC', 40, 600, 1926, 1174, 604])
function flashBoxLabel(args) {
clearHighlight();
var callBack = function(){boxLabel(args);};
setTimeout(callBack, 400);
setTimeout(clearHighlight, 800);
setTimeout(callBack, 1200);
}
function boxLabel(args) {
var text = args[0];
var textsize = args[1];
var thickness = 1+ textsize / 20;
var boxXmin = args[2] * grCanvasSize / grChipSize;
var boxYmin = args[3] * grCanvasSize / grChipSize;
var boxXmax = args[4] * grCanvasSize / grChipSize;
var boxYmax = args[5] * grCanvasSize / grChipSize;
ctx.lineWidth = thickness;
ctx.font = textsize + 'px sans-serif';
ctx.fillStyle = '#ff0'; // yellow
ctx.fillStyle = '#f8f'; // magenta
ctx.fillStyle = '#fff'; // white
ctx.strokeStyle = '#fff'; // white
if(args.length>4){
ctxDrawBox(ctx, boxXmin, boxYmin, boxXmax, boxYmax);
// offset the text label to the interior of the box
boxYmin -= thickness * 2;
}
ctx.strokeStyle = '#fff'; // white
ctx.strokeStyle = '#000'; // black
ctx.lineWidth = thickness*2;
ctx.strokeText(text, boxXmin, boxYmin);
ctx.fillText(text, boxXmin, boxYmin);
}
var highlightThese;
// flash some set of nodes according to user input
@ -389,6 +440,12 @@ function hiliteNodeList(){
setTimeout("hiliteNode(highlightThese);", 1200);
}
// some notes on coordinates:
// the localx and localy functions return canvas coordinate offsets from the canvas window top left corner
// we divide the results by 'zoom' to get drawn coordinates useful in findNodeNumber
// to convert to reported user chip coordinates we multiply by grChipSize/600
// to compare to segdefs and transdefs coordinates we subtract 400 from x and subtract y from grChipSize
function handleClick(e){
var x = localx(hilite, e.clientX)/zoom;
var y = localy(hilite, e.clientY)/zoom;

13
wires.js
View File

@ -184,6 +184,19 @@ function hiliteTrans(n){
}
}
function ctxDrawBox(ctx, xMin, yMin, xMax, yMax){
var cap=ctx.lineCap;
ctx.lineCap="square";
ctx.beginPath();
ctx.moveTo(xMin, yMin);
ctx.lineTo(xMin, yMax);
ctx.lineTo(xMax, yMax);
ctx.lineTo(xMax, yMin);
ctx.lineTo(xMin, yMin);
ctx.stroke();
ctx.lineCap=cap;
}
// takes a bounding box in chip coords and centres the display over it
function zoomToBox(xmin,xmax,ymin,ymax){
var xmid=(xmin+xmax)/2;