alex/restaurant-search
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Scrapping old canvas code

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Alex Yatskov 2014-10-31 10:15:37 +09:00
parent 111de24a40
commit 6e30c691a5
1 changed files with 4 additions and 341 deletions
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343
client/scripts/grapher.js
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@ -104,126 +104,9 @@
// Column
//
function Column(canvas, name, params, scale, range, bounds) {
this.clearShapes = function() {
_.each(this.shapes, function(shape) {
this.canvas.remove(shape);
});
this.shapes = [];
};
function Column(canvas, name, params, scale, range) {
this.updateShapes = function(final) {
this.columnBounds = this.getColumnBounds(this.bounds);
this.labelBounds = this.getLabelBounds(this.columnBounds);
this.hintBounds = this.getHintBounds(this.columnBounds);
this.fillBounds = this.getFillBounds(this.columnBounds);
this.handleBounds = this.getHandleBounds(this.columnBounds, this.fillBounds);
if (final) {
this.updateRect('boundsRect', {
left: this.columnBounds.left,
top: this.columnBounds.top,
width: this.columnBounds.width,
height: this.columnBounds.height,
stroke: this.strokeColor,
fill: this.emptyColor
});
this.updateRect('hintRect', {
left: this.hintBounds.left,
top: this.hintBounds.top,
width: this.hintBounds.width,
height: this.hintBounds.height,
stroke: this.strokeColor
});
this.hintRect.setGradient('fill', {
x1: 0.0,
y1: 0.0,
x2: 0.0,
y2: this.hintRect.height,
colorStops: this.decimateHints(this.steps, this.scale)
});
this.updateRect('labelRect', {
left: this.labelBounds.left,
top: this.labelBounds.top,
width: this.labelBounds.width,
height: this.labelBounds.height,
fill: this.strokeColor
});
this.updateText('label', this.name, {
left: this.fillBounds.left + this.fillBounds.width / 2,
top: this.labelBounds.top + this.labelBounds.height / 2,
fontSize: this.labelFontSize,
originX: 'center',
originY: 'center',
});
}
this.updateRect('fillRect', {
left: this.fillBounds.left,
top: this.fillBounds.top,
width: this.fillBounds.width,
height: this.fillBounds.height,
fill: this.getFillColor()
});
this.updateRect('handleRect', {
left: this.handleBounds.left,
top: this.handleBounds.top,
width: this.handleBounds.width,
height: this.handleBounds.height,
fill: this.getHandleColor()
});
if (final && this.range.containsPoint(0.0)) {
var y = this.getPosFromValue(0.0);
var p = [this.bounds.left, y, this.bounds.left + this.tickLength, y];
this.updateLine('baseline', p, {
stroke: this.tickColor
});
}
this.canvas.renderAll();
};
this.updateRect = function(name, args) {
// if (name in this) {
// this[name].set(args);
// }
// else {
// var rect = new fabric.Rect(args);
// this.canvas.add(rect);
// this.shapes.push(rect);
// this[name] = rect;
// }
};
this.updateText = function(name, str, args) {
// if (name in this) {
// this[name].set(args);
// }
// else {
// var text = new fabric.Text(str, args);
// this.canvas.add(text);
// this.shapes.push(text);
// this[name] = text;
// }
};
this.updateLine = function(name, points, args) {
// if (name in this) {
// this[name].set(args);
// }
// else {
// var line = new fabric.Line(points, args);
// this.canvas.add(line);
// this.shapes.push(line);
// this[name] = line;
// }
};
this.decimateHints = function(steps, scale) {
@ -285,55 +168,6 @@
this.updateShapes(true);
};
this.getLabelBounds = function(bounds) {
return new Rect(
bounds.left,
bounds.top + bounds.height,
bounds.width,
this.labelSize
);
};
this.getColumnBounds = function(bounds) {
return new Rect(
bounds.left + this.tickLength,
bounds.top,
bounds.width - this.tickLength,
bounds.height - this.labelSize
);
};
this.getHintBounds = function(bounds) {
return new Rect(
bounds.left + bounds.width - this.hintSize,
bounds.top,
this.hintSize,
bounds.height
);
};
this.getFillBounds = function(bounds) {
var y1 = this.getPosFromValue(0.0);
var y2 = this.getPosFromValue(this.value);
return new Rect(
bounds.left,
Math.min(y1, y2),
bounds.width - this.hintSize,
Math.abs(y1 - y2)
);
};
this.getHandleBounds = function(bounds, fillBounds) {
var handleBounds = new Rect(
fillBounds.left,
this.getPosFromValue(this.value) - this.handleSize / 2,
fillBounds.width,
this.handleSize
);
handleBounds.intersection(bounds);
return handleBounds;
};
this.valueColorAdjust = function(color, offset) {
var colorObj = tinycolor(color);
var rangeEnd = this.value >= 0.0 ? this.range.end : this.range.start;
@ -353,105 +187,6 @@
return this.valueColorAdjust(color, this.desatOffset);
};
this.mouseDown = function(position) {
if (this.isGrabbing(position)) {
this.stateTransition(this.State.DRAG, position);
}
};
this.mouseUp = function(position) {
this.stateTransition(
this.isHovering(position) ? this.State.HOVER : this.State.NORMAL,
position
);
};
this.mouseMove = function(position) {
switch (this.state) {
case this.State.NORMAL:
if (this.isHovering(position)) {
this.stateTransition(this.State.HOVER, position);
}
break;
case this.State.HOVER:
if (!this.isHovering(position)) {
this.stateTransition(this.State.NORMAL, position);
}
break;
}
this.stateUpdate(position);
};
this.mouseOut = function(position) {
this.mouseUp(position);
};
this.mouseDoubleClick = function(position) {
if (this.isContained(position)) {
this.setClampedValue(this.getValueFromPos(position.y), true);
}
};
this.getValueFromPos = function(position) {
var percent = 1.0 - (position - this.columnBounds.top) / this.columnBounds.height;
return this.range.start + this.range.getLength() * percent;
};
this.getPosFromValue = function(value) {
var percent = 1.0 - (value - this.range.start) / this.range.getLength();
var range = new Range(this.columnBounds.top, this.columnBounds.top + this.columnBounds.height);
return range.clamp(this.columnBounds.top + this.columnBounds.height * percent);
};
this.isHovering = function(position) {
return this.isGrabbing(position);
};
this.isGrabbing = function(position) {
return this.handleBounds.contains(position);
};
this.isContained = function(position) {
return this.columnBounds.contains(position);
};
this.stateUpdate = function(position) {
switch (this.state) {
case this.State.DRAG:
this.setClampedValue(this.getValueFromPos(position.y) + this.dragDelta, false);
break;
}
};
this.stateTransition = function(state, position) {
if (state == this.state) {
return;
}
switch (this.state) {
case this.State.DRAG:
this.setClampedValue(this.getValueFromPos(position.y) + this.dragDelta, true);
/* falls through */
case this.State.HOVER:
if (state == this.State.NORMAL) {
this.canvas.contextContainer.canvas.style.cursor = 'default';
}
break;
}
switch (state) {
case this.State.DRAG:
this.dragDelta = this.value - this.getValueFromPos(position.y);
/* falls through */
case this.State.HOVER:
this.canvas.contextContainer.canvas.style.cursor = 'ns-resize';
break;
}
this.state = state;
};
this.State = {
NORMAL: 0,
HOVER: 1,
@ -505,8 +240,6 @@
scale = this.getGlobalScale(hintData);
}
var graphBounds = this.getGraphBounds(this.getCanvasBounds());
var index = 0;
var that = this;
_.each(columns, function(columnValue, columnName) {
@ -514,8 +247,7 @@
scale = that.getLocalScale(columnValue.hints);
}
var columnBounds = that.getColumnBounds(graphBounds, index);
that.columns.push(new Column(that.canvas, columnName, columnValue, scale, that.range, columnBounds));
that.columns.push(new Column(that.canvas, columnName, columnValue, scale, that.range));
that.indexMap[columnName] = index++;
});
};
@ -537,13 +269,11 @@
var that = this;
_.each(data, function(entry, name) {
var index = that.getColumnIndex(name);
console.assert(index >= 0);
if (that.useLocalScale) {
scale = that.getLocalScale(entry.hints);
}
var index = that.getColumnIndex(name);
var column = that.columns[index];
column.updateParams(entry, scale);
});
@ -606,7 +336,6 @@
};
this.getColumnIndex = function(name) {
console.assert(name in this.indexMap);
return this.indexMap[name];
};
@ -618,64 +347,6 @@
return _.pluck(this.columns, 'name');
};
this.getCanvasBounds = function() {
return new Rect(0, 0, this.canvas.width - 1, this.canvas.height - 1);
};
this.getGraphBounds = function(bounds) {
return this.getCanvasBounds();
};
this.getColumnBounds = function(bounds, index, count) {
var width = this.columnWidth + this.padding * 2;
return new Rect(
bounds.left + width * index + this.padding,
bounds.top,
this.columnWidth,
bounds.height
);
};
this.getMousePos = function(e) {
var rect = e.target.getBoundingClientRect();
return new Coord(e.clientX - rect.left, e.clientY - rect.top);
};
this.mouseDown = function(e) {
var position = this.grapher.getMousePos(e);
_.each(this.grapher.columns, function(column) {
column.mouseDown(position);
});
};
this.mouseUp = function(e) {
var position = this.grapher.getMousePos(e);
_.each(this.grapher.columns, function(column) {
column.mouseUp(position);
});
};
this.mouseMove = function(e) {
var position = this.grapher.getMousePos(e);
_.each(this.grapher.columns, function(column) {
column.mouseMove(position);
});
};
this.mouseOut = function(e) {
var position = this.grapher.getMousePos(e);
_.each(this.grapher.columns, function(column) {
column.mouseOut(position);
});
};
this.mouseDoubleClick = function(e) {
var position = this.grapher.getMousePos(e);
_.each(this.grapher.columns, function(column) {
column.mouseDoubleClick(position);
});
};
this.useLocalScale = useLocalScale;
this.useRelativeScale = useRelativeScale;
this.columnWidth = columnWidth;
@ -684,13 +355,5 @@
this.padding = 10;
this.indexMap = {};
this.columns = [];
var c = this.canvas.contextContainer.canvas;
c.addEventListener('mousedown', this.mouseDown, false);
c.addEventListener('mouseup', this.mouseUp, false);
c.addEventListener('mousemove', this.mouseMove, false);
c.addEventListener('mouseout', this.mouseOut, false);
c.addEventListener('dblclick', this.mouseDoubleClick, false);
c.grapher = this;
};
}(window.grapher = window.grapher || {}));