timy/EduNetworkBuilder
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Get the name to display under the network devices

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Tim Young 2024-04-22 13:09:44 -05:00
parent dc741e8c0b
commit df520fcce6
1 changed files with 55 additions and 12 deletions
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51
Web/ui.js
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@ -8,7 +8,8 @@ var mouseIsDown=false;
var mouseDownLocation; var mouseDownLocation;
var mouseDidMovement=false; var mouseDidMovement=false;
var imageSize=40; var imageSize=40;
var small_button_size=20; var small_button_size = 20;
var uiDeviceInfoLevel = 1; //What do we display when we look at the network
//The user interface mode. 0=network, 1=network information, 2=puzzle-selection menu //The user interface mode. 0=network, 1=network information, 2=puzzle-selection menu
var uiMode=1; var uiMode=1;
@ -270,7 +271,7 @@ function PrintAllNetworkLinks()
function PrintNetworkDevice(ToPrint) function PrintNetworkDevice(ToPrint)
{ {
//We should have passed in a working link, make sure it exists //We should have passed in a working device, make sure it exists
if(ToPrint !== null) if(ToPrint !== null)
{ {
var rect = deviceRectangle(ToPrint); var rect = deviceRectangle(ToPrint);
@ -278,7 +279,26 @@ function PrintNetworkDevice(ToPrint)
if(dname=="net_switch") dname="switch"; if(dname=="net_switch") dname="switch";
if(dname=="net_hub") dname="hub"; if(dname=="net_hub") dname="hub";
//console.log("printing device " + dname); //console.log("printing device " + dname);
MainCanvas_ctx.drawImage(imageFromName(dname),rect.spoint.x,rect.spoint.y,rect.width,rect.height); MainCanvas_ctx.drawImage(imageFromName(dname), rect.spoint.x, rect.spoint.y, rect.width, rect.height);
//Now, we see if we need to print the name, or a list of IPs..
var xpoint = rect.center.x;
var ystart = rect.epoint.y; //the bottom-most Y point
var gap = 3;
switch (uiDeviceInfoLevel) {
case 0:
//Do not print anything
break;
case 1:
//Print the name
printCenteredText(MainCanvas_ctx, ToPrint.hostname, xpoint, ystart);
break;
case 2:
//Print both the name and the IP addresses
break;
case 3:
//print just the ip addresses
break;
}
} }
} }
@ -293,6 +313,28 @@ function PrintAllNetworkDevices()
} }
} }
//print centered text. We use y as the top-most y position. But we center around the x position
function printCenteredText(canvas_context, text, centerx, top_y, font = "15px serif", textcolor="black") {
var metrics = canvas_context.measureText(text);
var yHeight = metrics.fontBoundingBoxAscent + metrics.fontBoundingBoxDescent + tmTextYGap;
var xWidth = metrics.width;
var oldfill = canvas_context.fillStyle;
var oldstroke = canvas_context.strokeStyle;
canvas_context.font = font;
canvas_context.fillStyle = textcolor;
canvas_context.strokeStyle = textcolor;
canvas_context.fillText(text, centerx - (xWidth / 2), top_y + (yHeight / 3));
//reset stuff when done
canvas_context.fillStyle = oldfill;
canvas_context.strokeStyle = oldstroke;
return yHeight; //report back how much space we used. Just in case they want it.
}
function convertXYPointToActual(point) function convertXYPointToActual(point)
{ {
//We have an x and y coordinate which needs to be converted to the canvas size //We have an x and y coordinate which needs to be converted to the canvas size
@ -335,7 +377,8 @@ function deviceRectangle(theDevice)
spoint : newPointFromPair(centerpoint.x-delta, centerpoint.y-delta), spoint : newPointFromPair(centerpoint.x-delta, centerpoint.y-delta),
height : imageSize, height : imageSize,
width : imageSize, width : imageSize,
epoint : newPointFromPair(centerpoint.x+delta, centerpoint.y+delta) epoint : newPointFromPair(centerpoint.x + delta, centerpoint.y + delta),
center: centerpoint,
} }
return rect; return rect;
} }