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Code Issues Releases Wiki Activity

Start refactoring the bitmap editor to permit a more complex UI

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This commit is contained in:
Jeremy Ruston 2013-06-05 19:04:40 +01:00
parent 82aeffe3d0
commit d81f45764a
1 changed files with 40 additions and 15 deletions
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55
core/modules/widgets/edit/editors/bitmapeditor.js
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@ -23,23 +23,48 @@ var BitmapEditor = function(editWidget,tiddlerTitle,fieldName) {
BitmapEditor.prototype.render = function() {
// Set the element details
this.editWidget.tag = "canvas";
this.editWidget.tag = "div";
this.editWidget.attributes = {
"class": "tw-edit-bitmapeditor"
"class": "tw-edit-bitmapeditor-wrapper"
};
this.editWidget.events = [
{name: "touchstart", handlerObject: this, handlerMethod: "handleTouchStartEvent"},
{name: "touchmove", handlerObject: this, handlerMethod: "handleTouchMoveEvent"},
{name: "touchend", handlerObject: this, handlerMethod: "handleTouchEndEvent"},
{name: "mousedown", handlerObject: this, handlerMethod: "handleMouseDownEvent"},
{name: "mousemove", handlerObject: this, handlerMethod: "handleMouseMoveEvent"},
{name: "mouseup", handlerObject: this, handlerMethod: "handleMouseUpEvent"}
];
var children = [{
type: "element",
tag: "canvas",
attributes: {
"class": {type: "string", value: "tw-edit-bitmapeditor"}
},
events: [{
name: "touchstart",
handlerObject: this,
handlerMethod: "handleTouchStartEvent"
},{
name: "touchmove",
handlerObject: this,
handlerMethod: "handleTouchMoveEvent"
},{
name: "touchend",
handlerObject: this,
handlerMethod: "handleTouchEndEvent"
},{
name: "mousedown",
handlerObject: this,
handlerMethod: "handleMouseDownEvent"
},{
name: "mousemove",
handlerObject: this,
handlerMethod: "handleMouseMoveEvent"
},{
name: "mouseup",
handlerObject: this,
handlerMethod: "handleMouseUpEvent"
}]
}];
this.editWidget.children = this.editWidget.renderer.renderTree.createRenderers(this.editWidget.renderer,children);
};
BitmapEditor.prototype.postRenderInDom = function() {
var tiddler = this.editWidget.renderer.renderTree.wiki.getTiddler(this.tiddlerTitle),
canvas = this.editWidget.renderer.domNode,
canvas = this.editWidget.renderer.domNode.firstChild,
currImage = new Image();
// Set up event handlers for loading the image
var self = this;
@ -130,7 +155,7 @@ BitmapEditor.prototype.handleMouseUpEvent = function(event) {
};
BitmapEditor.prototype.adjustCoordinates = function(x,y) {
var canvas = this.editWidget.renderer.domNode,
var canvas = this.editWidget.renderer.domNode.firstChild,
canvasRect = canvas.getBoundingClientRect(),
scale = canvas.width/canvasRect.width;
return {x: (x - canvasRect.left) * scale, y: (y - canvasRect.top) * scale};
@ -142,7 +167,7 @@ BitmapEditor.prototype.strokeStart = function(x,y) {
};
BitmapEditor.prototype.strokeMove = function(x,y) {
var canvas = this.editWidget.renderer.domNode,
var canvas = this.editWidget.renderer.domNode.firstChild,
ctx = canvas.getContext("2d"),
t;
// Add the new position to the end of the stroke
@ -168,7 +193,7 @@ BitmapEditor.prototype.strokeMove = function(x,y) {
BitmapEditor.prototype.strokeEnd = function() {
// Copy the bitmap to the off-screen canvas
var canvas = this.editWidget.renderer.domNode,
var canvas = this.editWidget.renderer.domNode.firstChild,
ctx = this.currCanvas.getContext("2d");
ctx.drawImage(canvas,0,0);
// Save the image into the tiddler
@ -179,7 +204,7 @@ BitmapEditor.prototype.saveChanges = function() {
var tiddler = this.editWidget.renderer.renderTree.wiki.getTiddler(this.tiddlerTitle);
if(tiddler) {
// data URIs look like "data:<type>;base64,<text>"
var dataURL = this.editWidget.renderer.domNode.toDataURL(tiddler.fields.type,1.0),
var dataURL = this.editWidget.renderer.domNode.firstChild.toDataURL(tiddler.fields.type,1.0),
posColon = dataURL.indexOf(":"),
posSemiColon = dataURL.indexOf(";"),
posComma = dataURL.indexOf(","),