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DrawingBoard.html
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<html>
<head>
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-125039435-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() { dataLayer.push(arguments); }
gtag('js', new Date());
gtag('config', 'UA-125039435-1');
</script>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Drawing Board Canvas workshop </title>
<link href="css/bootstrap.min.css" rel="stylesheet" />
<link href="css/bootstrap-dialog.min.css" rel="stylesheet" />
<style TYPE="text/css">
<!--
a:link { text-decoration: none; }
-->
</style>
</head>
<body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginheight="0" marginwidth="0" style="overflow: hidden">
<script src="Scripts/jquery-1.11.3.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/bootstrap-dialog.min.js"></script>
<!-- 480 960 1440 810 540 270 -->
<canvas id="stage" width="1440" height="810" style="background-color:#000;"></canvas>
<script type="text/javascript">
function doBodyResize() {
$('#stage').height(window.innerHeight - 2);
$('#stage').width(window.innerWidth - 2);
vr.size();
}
var vr = {
nonce: 0,
mousex: 0, mousey: 0,
mousecx: 0, mousecy: 0, mouseIsDown: 0,
mousedx: 0, mousedy: 0,
mouserx: 0, mousery: 0,
canvas: document.getElementById("stage"),
height: 0, width: 0,
canvasScaleX: 0, canvasScaleY: 0, canvasRectTop: 0, canvasRectLeft: 0,
f20Height: 0, f05Height: 0, f15Height: 0,
f20Width: 0, f05Width: 0, f15Width: 0,
start: function () {
this.context = this.canvas.getContext("2d");
this.canvas.addEventListener("mousemove", mouseMove, false);
this.canvas.addEventListener("mousedown", mouseDown, false);
this.canvas.addEventListener("mouseup", mouseUp, false);
this.interval = setInterval(vr.redraw, 500);
this.size();
},
size: function () {
let rect = this.canvas.getBoundingClientRect();
this.canvasRectTop = rect.top;
this.canvasRectLeft = rect.left;
this.width = (this.canvas ? this.canvas.width : 0);
this.height = (this.canvas ? this.canvas.height : 0);
this.canvasScaleX = this.width / rect.width;
this.canvasScaleY = this.height / rect.height;
this.f20Height = (this.canvas ? this.height * 0.2 : 0);
this.f05Height = (this.canvas ? this.height * 0.065 : 0);
this.f15Height = (this.canvas ? this.height * 0.145 : 0);
this.f20Width = (this.canvas ? this.width * 0.2 : 0);
this.f05Width = (this.canvas ? this.width * 0.05 : 0);
this.f15Width = (this.canvas ? this.width * 0.15 : 0);
},
redraw: function () {
vr.nonce++;
let aCanvas = vr.context;
if (aCanvas) {
// clear the canvas
aCanvas.clearRect(0, 0, vr.canvas.width, vr.canvas.height);
// aCanvas.font = "12px Courier New,Courier,Lucida Sans Typewriter,Lucida Typewriter,monospace";
// aCanvas.fillStyle = "#FFFFFF";
// aCanvas.fillText("" + vr.nonce + " :Mx " + vr.mousex + " My " + vr.mousey +
// (vr.mouseIsDown == 1 ? " :Mcx " + vr.mousecx + " Mcy " + vr.mousecy : "") +
// (vr.mouserx == 0 ? "" : " Rx " + vr.mouserx + " Ry " + vr.mousery), 10, vr.f20Height * 5 - 20);
}
// redraw
if (gc) {
gc.drawGameConsole();
gc.drawFrame();
if (vr.mouseIsDown) {
let vrmousedx = (vr.mousecx - vr.canvasRectLeft) * vr.canvasScaleX;
let vrmousedy = (vr.mousecy - vr.canvasRectTop) * vr.canvasScaleY;
if ((vrmousedx > vr.f05Width * 2) && (vrmousedx < vr.width - vr.f05Width * 2) &&
(vrmousedy > vr.f05Height * 2) && (vrmousedy < vr.height - vr.f05Height * 2) &&
(vr.mousedx > vr.f05Width * 2) && (vr.mousedx < vr.width - vr.f05Width * 2) &&
(vr.mousedy > vr.f05Height * 2) && (vr.mousedy < vr.height - vr.f05Height * 2)) {
aCanvas.beginPath();
aCanvas.lineWidth = 1;
aCanvas.strokeStyle = "#FFFFFF";
aCanvas.moveTo(vr.mousedx, vr.mousedy);
aCanvas.lineTo(vrmousedx, vrmousedy);
aCanvas.stroke();
}
}
}
}
}, gc = {
hasCurFrame: false,
currentFrame: {},
frames: [],
start: function () {
if (!this.hasCurFrame) {
this.currentFrame = new frame(0);
this.hasCurFrame = true;
}
},
drawGameConsole: function () {
let aCanvas = vr.context;
if (aCanvas) {
let ahvrw = Math.trunc(vr.f05Width / 2);
let ahvrh = Math.trunc(vr.f05Height / 2);
// scale line above
aCanvas.beginPath();
aCanvas.lineWidth = 1;
aCanvas.strokeStyle = "#3F3F3F";
aCanvas.moveTo(vr.f05Width * 2 + ahvrw, vr.f05Height * 2 - ahvrh);
aCanvas.lineTo(vr.width - vr.f05Width * 2 - ahvrw, vr.f05Height * 2 - ahvrh);
aCanvas.stroke();
// scale line on right
aCanvas.beginPath();
aCanvas.lineWidth = 1;
aCanvas.strokeStyle = "#3F3F3F";
aCanvas.moveTo(vr.width - vr.f05Width * 2 + ahvrw, vr.f05Height * 2 + ahvrh);
aCanvas.lineTo(vr.width - vr.f05Width * 2 + ahvrw, vr.height - vr.f05Height * 2 - ahvrh);
aCanvas.stroke();
} // pencil measures
let aBRG = aCanvas.createRadialGradient(vr.f20Width * 2 + vr.f05Width, vr.f20Height * 2 + vr.f05Height, 0, vr.f20Width * 2 + vr.f05Width, vr.f20Height * 2 + vr.f05Height, vr.f20Height * 2.5);
aBRG.addColorStop(0, "#ebcb07");
aBRG.addColorStop(1, "#716203");
// frame controls
let fc = 0;
if (gc.frames) fc = gc.frames.length;
if (fc > 0) {
//aCanvas.fillStyle = "#1F1F1F";
//aCanvas.fillRect(vr.f05Width, 0, vr.f20Width * 5 - vr.f05Width, vr.f05Height);
// add button
aCanvas.fillStyle = "#3F3F3F";
if (fc < 19) {
aCanvas.fillRect(vr.f05Width + ((fc) * vr.f05Width), 10, vr.f05Width - 20, vr.f05Height - 20);
aCanvas.font = "16px Courier New";
aCanvas.fillStyle = "#FFFFFF";
aCanvas.fillText("+", vr.f05Width + ((fc) * vr.f05Width) + (vr.f05Width / 2) - 10, (vr.f05Height / 2) + 5);
}
// frame buttons
for (let i = 0; i < fc; i++) {
aFrame = gc.frames[i];
if (aFrame && gc.hasCurFrame && (gc.currentFrame.id == aFrame.id)) {
aCanvas.fillStyle = aFrame.color;
aCanvas.fillRect(vr.f05Width + (i * vr.f05Width), 10, vr.f05Width, vr.f05Height - 20);
} else {
aCanvas.fillStyle = "#3F3F3F";
aCanvas.fillRect(vr.f05Width + (i * vr.f05Width), 10, vr.f05Width, vr.f05Height - 20);
}
aCanvas.font = "16px Courier New";
aCanvas.fillStyle = "#FFFFFF";
aCanvas.fillText(i + 1, vr.f05Width + (i * vr.f05Width) + (vr.f05Width / 2) - 5, (vr.f05Height / 2) + 5);
}
// frame current selected highlights
if (aFrame && gc.hasCurFrame) {
aCanvas.font = "16px Courier New";
aCanvas.fillStyle = "#FFFFFF";
aCanvas.fillText(gc.currentFrame.id + 1, vr.f05Width + (gc.currentFrame.id * vr.f05Width) + (vr.f05Width / 2) - 5, (vr.f05Height / 2) + 5);
aCanvas.strokeStyle = aBRG;
aCanvas.lineWidth = 4;
aCanvas.strokeRect(vr.f05Width + (gc.currentFrame.id * vr.f05Width), 10, vr.f05Width, vr.f05Height - 20);
}
}
// display border
aCanvas.strokeStyle = aBRG;
aCanvas.lineWidth = 4;
aCanvas.strokeRect(vr.f05Width * 2, vr.f05Height * 2, vr.f20Width * 4, vr.f20Height * 4 - vr.f05Height * 1);
//aCanvas.beginPath();
//aCanvas.moveTo(vr.f05Width, vr.f05Height);
//aCanvas.lineTo(vr.f20Height * 4, vr.f05Height);
//aCanvas.lineTo(vr.f20Height * 4, vr.f20Height * 4);
//aCanvas.lineTo(vr.f05Width, vr.f20Height * 4 );
//aCanvas.lineTo(vr.f05Width, vr.f05Height);
//aCanvas.stroke();
},
drawFrame: function () {
let fc = 0;
if (gc.frames) fc = gc.frames.length;
if (fc > 0) {
let aCanvas = vr.context;
let aBRG = aCanvas.createRadialGradient(vr.f20Width * 2 + vr.f05Width, vr.f20Height * 2 + vr.f05Height, 0, vr.f20Width * 2 + vr.f05Width, vr.f20Height * 2 + vr.f05Height, vr.f20Height * 2.5);
aBRG.addColorStop(0, "#ebcb07");
aBRG.addColorStop(1, "#716203");
for (let i = 0; i < fc; i++) {
aFrame = gc.frames[i];
if (aFrame && this.hasCurFrame && (this.currentFrame.id == i)) {
if (aFrame.items) {
let ic = aFrame.items.length;
// draw add item button
aCanvas.fillStyle = "#3F3F3F";
aB = Math.trunc(ic / 2) - 1;
aA = !(Math.trunc((ic % 2) * 10) > 0);
aCanvas.fillRect((aA ? 10 : (vr.f05Width)), (vr.f05Height * (aB + 3)), vr.f05Width - 20, vr.f05Height - 20);
aCanvas.font = "16px Courier New";
aCanvas.fillStyle = "#FFFFFF";
aCanvas.fillText("Add", (aA ? 15 : (vr.f05Width) + 5), vr.f05Height * (aB + 3) + vr.f05Height / 2 - 5);
for (let j = 0; j < ic; j++) {
aItem = aFrame.items[j];
if (aItem) {
// draw menu items.
aB = Math.trunc(j / 2) -1;
aA = !(Math.trunc((j % 2) * 10) > 0);
aCanvas.fillStyle = "#3F3F3F";
aCanvas.fillRect((aA ? 10 : (vr.f05Width )), (vr.f05Height * (aB+3)), vr.f05Width - 20, vr.f05Height - 20);
aCanvas.font = "16px Courier New";
aCanvas.fillStyle = "#FFFFFF";
aCanvas.fillText(aItem.type, (aA ? 15 : (vr.f05Width) + 5), vr.f05Height * (aB + 3) + vr.f05Height / 2 - 5);
if (gc.currentFrame.CurrentItem.id == aItem.id) {
aCanvas.strokeStyle = aBRG;
aCanvas.lineWidth = 4;
aCanvas.strokeRect((aA ? 10 : (vr.f05Width)), (vr.f05Height * (aB + 3)), vr.f05Width - 20, vr.f05Height - 20);
aCanvas.lineWidth = 1;
}
// draw display
if (aItem.type == "tText") {
aCanvas.font = aItem.fontCSS;
aCanvas.fillStyle = aItem.colorA;
aCanvas.fillText(aItem.text, vr.f05Width * 2 + aItem.loc.x, vr.f05Height*2+ aItem.loc.y);
}
if (aItem.type == "tRect") {
aCanvas.fillStyle = aItem.colorA;
aCanvas.fillRect(vr.f05Width * 2 + aItem.loc.x, vr.f05Height *2 + aItem.loc.y, aItem.loc.w, aItem.loc.h);
}
}
} // foreach of the drawables in items do
}
} // if we have the current frame.
} // iterate frames looking for current.
}
},
drawItem: function () {
}
};
function frame(aId) {
this.id = aId;
this.color = "#000000";
this.hasCurItem = false;
this.CurrentItem = {};
this.items = [];
gc.frames.push(this);
}
function vrec(aX, aY, aW, aH) {
this.x = aX;
this.y = aY;
this.w = aW;
this.h = aH;
}
function drawable(aOwnerFrame, aId, avrec, aType) {
this.owner = aOwnerFrame;
this.id = aId;
this.loc = avrec;
this.type = aType;
this.text = "";
this.fontCSS = "12px Courier New,Courier,Lucida Sans Typewriter,Lucida Typewriter,monospace";
this.colorA = "#FFFFFF";
aOwnerFrame.items.push(this);
aOwnerFrame.CurrentItem = this;
if (!aOwnerFrame.hasCurItem) aOwnerFrame.hasCurItem = true;
}
function mouseMove(e) {
if (vr) {
vr.mousecx = e.clientX;
vr.mousecy = e.clientY;
}
}
function mouseDown(e) {
if (vr) {
vr.mousecx = e.clientX;
vr.mousecy = e.clientY;
let ax = (vr.mousecx - vr.canvasRectLeft) * vr.canvasScaleX;
let ay = (vr.mousecy - vr.canvasRectTop) * vr.canvasScaleY;
if ((vr.mouseIsDown == 0) &&
((ax > vr.f05Width * 2) && (ax < vr.width - vr.f05Width * 2) &&
(ay > vr.f05Height * 2) && (ay < vr.height - vr.f05Height * 2))) {
vr.mousedx = (vr.mousecx - vr.canvasRectLeft) * vr.canvasScaleX;
vr.mousedy = (vr.mousecy - vr.canvasRectTop) * vr.canvasScaleY;
}
vr.mouseIsDown = 1;
}
}
function mouseUp(e) {
if (vr) {
vr.mousecx = e.clientX;
vr.mousecy = e.clientY;
vr.mouseIsDown = 0;
if (gc) { // translate most recient coords to model
let ax = (vr.mousecx - vr.canvasRectLeft) * vr.canvasScaleX;
let ay = (vr.mousecy - vr.canvasRectTop) * vr.canvasScaleY;
if (ay < vr.f05Height) {
if (ax < vr.f05Width) {
// top left spot open
} else {
// set current
let indexAt = Math.trunc((ax - vr.f05Width) / vr.f05Width);
if (indexAt < gc.frames.length) {
gc.currentFrame = gc.frames[indexAt];
} else { // do add frame op
gc.currentFrame = new frame(gc.frames.length);
}
}
} else { // ay is less than top menu row
// ay bigger than top menu row.
if ((ay > vr.f05Height * 2) && (ax < vr.f05Width * 2)) {
let aBase = Math.trunc((ay - (vr.f05Height * 2)) / vr.f05Height);
let aChunk = Math.trunc(ax / vr.f05Width);
let aIndex = aBase * 2 + aChunk;
let aIC = gc.currentFrame.items.length;
if (aIndex < aIC) {
if (gc.currentFrame.CurrentItem && gc.currentFrame.items[aIndex].id == gc.currentFrame.CurrentItem.id) {
doEditItemDialog(false, gc.currentFrame.items[aIndex]);
} else {
gc.currentFrame.CurrentItem = gc.currentFrame.items[aIndex];
}
} else {
doEditItemDialog(true, 0);
}
}
if ((ax > vr.f05Width * 2) && (ax < vr.width - vr.f05Width * 2) && (ay > vr.f05Height * 2) && (ay < vr.height - vr.f05Height * 2)) {
if (gc.currentFrame.CurrentItem) { // move current item.
gc.currentFrame.CurrentItem.loc.x = gc.currentFrame.CurrentItem.loc.x + (ax - vr.mousedx);
gc.currentFrame.CurrentItem.loc.y = gc.currentFrame.CurrentItem.loc.y + (ay - vr.mousedy);
}
}
} // ay was > f05Width
vr.mousedx = 0;
vr.mousedy = 0;
vr.mousecx = 0;
vr.mousecy = 0;
} // if game controler is up
} // if viewer is up
}
function doSetEditData() {
if (gc.hasCurFrame && gc.currentFrame.hasCurItem) {
let aItem = gc.currentFrame.CurrentItem;
if (aItem) {
document.getElementById("edType").value = aItem.type;
document.getElementById("edText").value = aItem.text;
document.getElementById("edFontCSS").value = aItem.fontCSS;
document.getElementById("edColorA").value = aItem.colorA;
document.getElementById("edX").value = aItem.loc.x;
document.getElementById("edY").value = aItem.loc.y;
document.getElementById("edW").value = aItem.loc.w;
document.getElementById("edH").value = aItem.loc.h;
}
}
}
function doEditItemDialog(aIsNew, aItem) {
let adlg = BootstrapDialog.show({
title: "" + (aIsNew ? 'Adding new Item' : 'Edit the ' + aItem.type),
draggable: false,
data: { 'url': (aIsNew ? 'dlgAddDrawingBoardItem3.html' : 'dlgEditDrawingBoardItem3.html') },
message: function (dialog) {
let $message = $('<div></div>').load(dialog.getData('url'));
return $message;
},
buttons: [{
label: 'Save',
cssClass: 'btn-primary',
icon: 'glyphicon glyphicon-ok',
action: function (dialog) {
if (aIsNew) {
aItem = new drawable(gc.currentFrame, gc.currentFrame.items.length, new vrec(10, 10, 10, 10), "");
}
aItem.type = document.getElementById("edType").value;
aItem.text = document.getElementById("edText").value;
aItem.fontCSS = document.getElementById("edFontCSS").value;
aItem.colorA = document.getElementById("edColorA").value;
aItem.loc.x = parseInt( document.getElementById("edX").value, 10);
aItem.loc.y = parseInt(document.getElementById("edY").value, 10);
aItem.loc.w = parseInt(document.getElementById("edW").value, 10);
aItem.loc.h = parseInt(document.getElementById("edH").value, 10);
dialog.close();
}
}, {
label: 'Close',
icon: 'glyphicon glyphicon-ban-circle',
action: function (dialog) {
dialog.close();
}
}],
onhidden: function (dialog) {
}
});
}
var ppd = new Date();
function pu(s) {
ppd = new Date();
ns = 'MM' + ppd.getTime();
try {
var x = window.open(s, ns, 'location=yes,menubar=yes,resizable=yes,scrollbars=yes,toolbar=yes,status=yes');
} catch (e) { }
}
$(window).load(function () {
document.getElementsByTagName("BODY")[0].onresize = function () { doBodyResize(); };
setTimeout(doBodyResize, 50);
gc.start();
vr.start();
});
</script>
</body>
</html>