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map.php
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map.php
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<html>
<head>
<link rel="stylesheet" href="css/reset.css" media="screen" />
<link rel="stylesheet" href="css/jquery-ui-1.8.18.custom.css" media="screen" />
<link rel="stylesheet" href="css/colorpicker.css" media="screen" />
<script src="js/colorpicker.min.js" type="text/javascript"></script>
<script src="js/Util.js" type="text/javascript"></script>
<script src="js/jquery.min.js" type="text/javascript"></script>
<script src="js/jquery-ui-1.8.18.custom.min.js" type="text/javascript"></script>
<script type="text/javascript">
var current_color,
set_current_color = (function(hex){
current_color = hex;
$('#current_color').css({'background-color':hex})
});
$(function(){
$('#map-container').draggable({
start:function(){
if(checkDrawing()) return false;
},
stop:function(){
get_canvas_page_offset();
}
}).resizable({
start:function(){
var map_container = $('#map-container');
old_size_x = map_container.innerWidth();
old_size_y = map_container.innerHeight();
},
stop: function(){
var map_container = $('#map-container');
new_size_x = map_container.innerWidth();
new_size_y = map_container.innerHeight();
var scale_factor_x = new_size_x / old_size_x;
var scale_factor_y = new_size_y / old_size_y;
old_map_copy = document.getElementById('temp_canvas');
clear_canvas(old_map_copy);
old_map_copy_context = old_map_copy.getContext('2d')
old_map_copy_context.scale(scale_factor_x,scale_factor_y);
old_map_copy_context.drawImage(map_canvas, 0, 0);
drawCanvas(grid_canvas, grid_context);
//clear & update the canvas
clear_canvas(map_canvas);
old_map_copy = document.getElementById('temp_canvas');
overlay = old_map_copy;
clickX = [];
clickY = [];
clickDrag = [];
clickSize = [];
clickColor = [];
redraw();
}
});
var old_map_copy,
old_map_copy_context,
old_size_x,
old_size_y,
new_size_x,
new_size_y,
clickX = [],
clickY = [],
clickDrag = [],
clickSize = [],
clickColor = [],
overlay,
get_canvas_page_offset = (function(){
canvas_page_offset = $('#map-container').offset();
}),
checkDrawing = (function(){
return $('#draw').is(':checked');
}),
clear_canvas = (function(canvas){
canvas.width = $('#map-container').innerWidth();
canvas.height = $('#map-container').innerHeight();
}),
currently_drawing = false,
grid_canvas = document.getElementById('grid'),
map_canvas = document.getElementById('map'),
get_form_params = (function(){ return window.Util.GetHashFromSerializedArray( $('#map-grid-attributes').serializeArray() ); }),
drawCanvas = (function(canvas, ctx){
var $params = get_form_params(),
xPos = 0,
yPos = 0,
canvasWidth = $('#map-container').innerWidth(),
canvasHeight = $('#map-container').innerHeight(),
widthIterator = (canvasWidth / $params['grid-size-x']),
heightIterator = (canvasHeight / $params['grid-size-y']);
//clear & update the canvas
clear_canvas(canvas);
//draw vertical lines
for(xPos; xPos <= canvasWidth; xPos+=widthIterator)
{
ctx.beginPath();
ctx.moveTo(xPos,0);
ctx.lineTo(xPos,canvasHeight);
ctx.closePath();
ctx.stroke();
}
//draw horizontal lines
for(yPos; yPos <= canvasHeight; yPos+=heightIterator)
{
ctx.beginPath();
ctx.moveTo(0,yPos);
ctx.lineTo(canvasWidth,yPos);
ctx.closePath();
ctx.stroke();
}
return false;
}),
redraw = function(){
map_canvas.width = map_canvas.width; // Clears the canvas
//adds any old drawing info back to the canvas
if(overlay) map_context.drawImage(overlay, 0, 0);
map_context.lineJoin = "round";
for(var i=0; i < clickX.length; i++)
{
map_context.strokeStyle = clickColor[i];
map_context.lineWidth = clickSize[i];
map_context.beginPath();
if(clickDrag[i] && i){
map_context.moveTo(clickX[i-1], clickY[i-1]);
}else{
map_context.moveTo(clickX[i]-1, clickY[i]);
}
map_context.lineTo(clickX[i], clickY[i]);
map_context.closePath();
map_context.stroke();
}
};
get_canvas_page_offset();
if(grid_canvas.getContext){
var map_context = map_canvas.getContext('2d'),
grid_context = grid_canvas.getContext('2d');
clear_canvas(grid_canvas);
clear_canvas(map_canvas);
}
else alert('Please use a canvas compatible browser to use the map feature. (Chrome, Firefox)')
$('#map-grid-attributes').on('submit',function(){ return drawCanvas(grid_canvas, grid_context); }).trigger('submit');
$('#grid').bind('mousedown',function(e){
if(checkDrawing())
{
currently_drawing = true;
clickX.push(e.pageX - canvas_page_offset.left);
clickY.push(e.pageY - canvas_page_offset.top);
clickDrag.push(false);
clickColor.push(current_color);
clickSize.push(get_form_params()['pencil-width']);
redraw();
}
})
.bind('mouseleave',function(){ currently_drawing = false; })
.bind('mouseup',function(){ currently_drawing = false; })
.bind('mousemove',function(e){
if(currently_drawing && checkDrawing()){
clickX.push(e.pageX - canvas_page_offset.left);
clickY.push(e.pageY - canvas_page_offset.top);
clickDrag.push(true);
clickColor.push(current_color);
clickSize.push(get_form_params()['pencil-width']);
redraw();
}
});
set_current_color('#333');
})
</script>
<style type="text/css">
#map-container{ border: 1px solid black; width:800px; height:300px; position:relative; float:left; }
canvas { width:100%; height:100%; position:absolute; top:0; left:0; cursor:pointer; }
#grid{ z-index:999; }
#temp_canvas{display:none;}
#current_color{height:90px;width:90px;float:left;margin:0 5px}
</style>
</head>
<body>
<form id="map-grid-attributes">
<label for="grid-size-x">Grid Size X</label><input type="text" name="grid-size-x" id="grid-size-x" value="25" />
<label for="grid-size-x">Grid Size Y</label><input type="text" name="grid-size-y" id="grid-size-y" value="10" />
<button>Update</button>
<div class="clear"></div>
<input type="checkbox" id="draw" /><label for="draw">Enable Draw Mode?</label>
<div class="clear"></div>
Pencil Width:
<input type="radio" name="pencil-width" id="pencil-width-1" value="1"/><label for="pencil-width-1">Tiny</label>
<input type="radio" name="pencil-width" id="pencil-width-3" value="3" checked/><label for="pencil-width-3">Regular</label>
<input type="radio" name="pencil-width" id="pencil-width-6" value="6"/><label for="pencil-width-6">Large</label>
<input type="radio" name="pencil-width" id="pencil-width-12" value="12"/><label for="pencil-width-12">X-Large</label>
<div class="clear"></div>
<div style="float:left;">
<div id="color-picker" class="cp-small">
<div>Color:</div>
<div class="picker-wrapper">
<div id="picker" class="picker"></div>
<div id="indicator-picker" class="picker-indicator"></div>
</div>
<div class="slide-wrapper">
<div id="slide" class="slide"></div>
<div id="indicator-slide" class="slide-indicator"></div>
</div>
</div>
<div class="clear"></div>
<div id="current_color"></div>
<script type="text/javascript">
ColorPicker(
document.getElementById('slide'),
document.getElementById('picker'),
function(hex, hsv, rgb, mousePicker, mouseSlide) {
set_current_color( hex );
ColorPicker.positionIndicators(
document.getElementById('indicator-slide'),
document.getElementById('indicator-picker'),
mouseSlide, mousePicker);
});
</script>
</div>
</form>
<div id="map-container">
<canvas id="map"></canvas>
<canvas id="grid">
<p>Your browser doesn't support canvas.</p>
</canvas>
</div>
<div id="last_click"></div>
<canvas id="temp_canvas"></canvas>
</body>
</html>