Hallo Zusammen,
ich bin gerade dabei ein SDK aufzubauen. Das klappt auch super.
Nun soll in das SDK eine Komponente eingebaut werden mit der es möglich sein kann zu zeichnen. Die komponente gibt es bereits untern
Sketchs
NUn das Problem. Die Funktion vom Malen muss beim Startup bereits zur Verfügung stehen. Und das bekomme ich zur Zeit nicht hin.
Ein weiterer Fehler :type off Error is not a function TypeError: $(...).sketch is not a function
Habt ihr vielleicht einen Tipp für mich?
Beste Grüße
ich bin gerade dabei ein SDK aufzubauen. Das klappt auch super.
Nun soll in das SDK eine Komponente eingebaut werden mit der es möglich sein kann zu zeichnen. Die komponente gibt es bereits untern
Sketchs
NUn das Problem. Die Funktion vom Malen muss beim Startup bereits zur Verfügung stehen. Und das bekomme ich zur Zeit nicht hin.
Ein weiterer Fehler :type off Error is not a function TypeError: $(...).sketch is not a function
Code:
sap.designstudio.sdk.Component.subclass("com.ac.pdfexport.PDFExport", function() {
var that = this;
var text = "Export PDF";
var pdfMethod = 1;
var myLayer = document.createElement('canvas');
myLayer.id = 'canvas';
myLayer.style.position = 'absolute';
myLayer.style.left = '1px';
myLayer.style.top = '1px';
myLayer.style.padding = '1px';
// myLayer.style.background = '#00ff00';
myLayer.style.border = 'solid';
document.body.appendChild(myLayer);
var c = document.getElementById("canvas");
var ctx = c.getContext("2d");
$(function() {
$('#canvas').sketch;
});
var __slice = Array.prototype.slice;
(function($) {
var Sketch;
$.fn.sketch = function() {
var args, key, sketch;
key = arguments[0], args = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
if (this.length > 1) {
$.error('Sketch.js can only be called on one element at a time.');
}
sketch = this.data('sketch');
if (typeof key === 'string' && sketch) {
if (sketch[key]) {
if (typeof sketch[key] === 'function') {
return sketch[key].apply(sketch, args);
} else if (args.length === 0) {
return sketch[key];
} else if (args.length === 1) {
return sketch[key] = args[0];
}
} else {
return $.error('Sketch.js did not recognize the given command.');
}
} else if (sketch) {
return sketch;
} else {
this.data('sketch', new Sketch(this.get(0), key));
return this;
}
};
$('#canvas').Sketch = (function() {
function Sketch(el, opts) {
this.el = el;
this.canvas = $(el);
this.context = el.getContext('2d');
this.options = $.extend({
toolLinks: true,
defaultTool: 'marker',
defaultColor: '#000000',
defaultSize: 5
}, opts);
this.painting = false;
this.color = this.options.defaultColor;
this.size = this.options.defaultSize;
this.tool = this.options.defaultTool;
this.actions = [];
this.action = [];
this.canvas.bind('click mousedown mouseup mousemove mouseleave mouseout touchstart touchmove touchend touchcancel', this.onEvent);
if (this.options.toolLinks) {
$('body').delegate("a[href=\"#" + (this.canvas.attr('id')) + "\"]", 'click', function(e) {
var $canvas, $this, key, sketch, _i, _len, _ref;
$this = $(this);
$canvas = $($this.attr('href'));
sketch = $canvas.data('sketch');
_ref = ['color', 'size', 'tool'];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
key = _ref[_i];
if ($this.attr("data-" + key)) {
sketch.set(key, $(this).attr("data-" + key));
}
}
if ($(this).attr('data-download')) {
sketch.download($(this).attr('data-download'));
}
return false;
});
}
}
Sketch.prototype.download = function(format) {
var mime;
format || (format = "png");
if (format === "jpg") {
format = "jpeg";
}
mime = "image/" + format;
return window.open(this.el.toDataURL(mime));
};
Sketch.prototype.set = function(key, value) {
this[key] = value;
return this.canvas.trigger("sketch.change" + key, value);
};
Sketch.prototype.startPainting = function() {
this.painting = true;
return this.action = {
tool: this.tool,
color: this.color,
size: parseFloat(this.size),
events: []
};
};
Sketch.prototype.stopPainting = function() {
if (this.action) {
this.actions.push(this.action);
}
this.painting = false;
this.action = null;
return this.redraw();
};
Sketch.prototype.onEvent = function(e) {
if (e.originalEvent && e.originalEvent.targetTouches) {
e.pageX = e.originalEvent.targetTouches[0].pageX;
e.pageY = e.originalEvent.targetTouches[0].pageY;
}
$.sketch.tools[$(this).data('sketch').tool].onEvent.call($(this).data('sketch'), e);
e.preventDefault();
return false;
};
Sketch.prototype.redraw = function() {
var sketch;
this.el.width = this.canvas.width();
this.context = this.el.getContext('2d');
sketch = this;
$.each(this.actions, function() {
if (this.tool) {
return $.sketch.tools[this.tool].draw.call(sketch, this);
}
});
if (this.painting && this.action) {
return $.sketch.tools[this.action.tool].draw.call(sketch, this.action);
}
};
return Sketch;
})();
$.sketch = {
tools: {}
};
$.sketch.tools.marker = {
onEvent: function(e) {
switch (e.type) {
case 'mousedown':
case 'touchstart':
this.startPainting();
break;
case 'mouseup':
case 'mouseout':
case 'mouseleave':
case 'touchend':
case 'touchcancel':
this.stopPainting();
}
if (this.painting) {
this.action.events.push({
x: e.pageX - this.canvas.offset().left,
y: e.pageY - this.canvas.offset().top,
event: e.type
});
return this.redraw();
}
},
draw: function(action) {
var event, previous, _i, _len, _ref;
this.context.lineJoin = "round";
this.context.lineCap = "round";
this.context.beginPath();
this.context.moveTo(action.events[0].x, action.events[0].y);
_ref = action.events;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
event = _ref[_i];
this.context.lineTo(event.x, event.y);
previous = event;
}
this.context.strokeStyle = action.color;
this.context.lineWidth = action.size;
return this.context.stroke();
}
};
return $.sketch.tools.eraser = {
onEvent: function(e) {
return $.sketch.tools.marker.onEvent.call(this, e);
},
draw: function(action) {
var oldcomposite;
oldcomposite = this.context.globalCompositeOperation;
this.context.globalCompositeOperation = "copy";
action.color = "rgba(0,0,0,0)";
$.sketch.tools.marker.draw.call(this, action);
return this.context.globalCompositeOperation = oldcomposite;
}
};
})(jQuery);
});Habt ihr vielleicht einen Tipp für mich?
Beste Grüße
