127 lines
3.3 KiB
JavaScript
127 lines
3.3 KiB
JavaScript
function Guide()
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{
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this.el = document.createElement("canvas");
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this.el.id = "guide";
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this.el.width = 640;
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this.el.height = 640;
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this.el.style.width = "320px";
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this.el.style.height = "320px";
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this.widgets = document.createElement("canvas");
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this.widgets.id = "widgets";
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this.widgets.width = 640;
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this.widgets.height = 640;
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this.widgets.style.width = "320px";
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this.widgets.style.height = "320px";
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this.start = function()
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{
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this.clear();
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this.draw();
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}
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this.draw = function()
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{
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for (var x = dotgrid.grid_x; x >= 0; x--) {
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for (var y = dotgrid.grid_y; y >= 0; y--) {
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var pos_x = parseInt(x * dotgrid.grid_width) + dotgrid.grid_width ;
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var pos_y = parseInt(y * dotgrid.grid_height) + dotgrid.grid_height ;
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var is_step = x % dotgrid.block_x == 0 && y % dotgrid.block_y == 0;
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var radius = is_step ? 2.5 : 1.5;
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dotgrid.guide.draw_marker({x:pos_x,y:pos_y},radius,is_step);
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}
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}
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}
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this.resize = function(size)
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{
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this.el.width = (size.width+40)*2;
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this.el.height = (size.height+40)*2;
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this.el.style.width = (size.width+40)+"px";
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this.el.style.height = (size.height+40)+"px";
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this.widgets.width = (size.width+20)*2;
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this.widgets.height = (size.height+20)*2;
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this.widgets.style.width = (size.width+20)+"px";
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this.widgets.style.height = (size.height+20)+"px";
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this.update();
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}
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this.clear = function()
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{
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this.el.getContext('2d').clearRect(0, 0, 1280, 1280);
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this.widgets.getContext('2d').clearRect(0, 0, 1280, 1280);
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}
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this.update = function()
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{
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this.clear();
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var handles = [];
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for(id in dotgrid.segments){
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var segment = dotgrid.segments[id];
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handles = handles.concat(segment.handles())
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}
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for(id in handles){
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var handle = handles[id];
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this.draw_handle(handle,4);
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}
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// Translations
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if(dotgrid.translation){
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this.draw_translation();
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}
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this.draw();
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}
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this.draw_marker = function(pos,radius = 1,step)
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{
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var ctx = this.el.getContext('2d');
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ctx.beginPath();
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ctx.arc(pos.x * 2, pos.y * 2, radius, 0, 2 * Math.PI, false);
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ctx.fillStyle = step ? dotgrid.theme.active.f_med : dotgrid.theme.active.f_low;
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ctx.fill();
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ctx.closePath();
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}
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this.draw_handle = function(pos,radius)
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{
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var ctx = this.widgets.getContext('2d');
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ctx.beginPath();
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ctx.arc((pos.x * 2)+20, (pos.y * 2)+20, 10, 0, 2 * Math.PI, false);
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ctx.fillStyle = dotgrid.theme.active.f_high;
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ctx.fill();
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ctx.closePath();
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ctx.beginPath();
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ctx.arc((pos.x * 2)+20, (pos.y * 2)+20, radius, 0, 2 * Math.PI, false);
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ctx.fillStyle = dotgrid.theme.active.f_high;
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ctx.fill();
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ctx.lineWidth = 3;
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ctx.strokeStyle = dotgrid.theme.active.background;
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ctx.stroke();
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ctx.closePath();
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}
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this.draw_translation = function()
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{
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// From
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var ctx = this.widgets.getContext('2d');
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var from = dotgrid.translation.from;
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var to = dotgrid.translation.to;
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if(to.x<=0) {
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ctx.beginPath();
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ctx.moveTo((from.x * -2)+20,(from.y * 2)+20);
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ctx.lineTo((to.x * -2)+20,(to.y * 2)+20);
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ctx.lineCap="round";
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ctx.lineWidth = 5;
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ctx.strokeStyle = dotgrid.theme.active.f_inv;
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ctx.stroke();
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ctx.closePath();
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}
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}
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} |