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Time scale has a label now

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Evert Timberg 2015-09-20 19:24:46 -04:00
parent b7c7f1d6a4
commit f4cdd20a38
1 changed files with 55 additions and 2 deletions
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57
src/scales/scale.time.js
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@ -77,6 +77,20 @@
displayFormat: false, // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
},
// scale label
scaleLabel: {
fontColor: '#666',
fontFamily: 'Helvetica Neue',
fontSize: 12,
fontStyle: 'normal',
// actual label
labelString: '',
// display property
show: false,
},
// scale numbers
reverse: false,
override: null,
@ -329,6 +343,15 @@
height: 0,
};
// Are we showing a label for the scale?
if (this.options.scaleLabel.show) {
if (this.isHorizontal()) {
minSize.height += (this.options.scaleLabel.fontSize * 1.5);
} else {
minSize.width += (this.options.scaleLabel.fontSize * 1.5);
}
}
var labelFont = helpers.fontString(this.options.labels.fontSize, this.options.labels.fontStyle, this.options.labels.fontFamily);
var longestLabelWidth = helpers.longestText(this.ctx, labelFont, this.ticks);
@ -337,13 +360,15 @@
minSize.width = maxWidth;
} else if (this.options.display) {
var labelWidth = this.options.labels.show ? longestLabelWidth + 6 : 0;
minSize.width = Math.min(labelWidth, maxWidth);
minSize.width += labelWidth;
minSize.width = Math.min(minSize.width, maxWidth);
}
// Height
if (this.isHorizontal() && this.options.display) {
var labelHeight = (Math.sin(helpers.toRadians(this.labelRotation)) * longestLabelWidth) + 1.5 * this.options.labels.fontSize;
minSize.height = Math.min(this.options.labels.show ? labelHeight : 0, maxHeight);
minSize.height += this.options.labels.show ? labelHeight : 0;
minSize.height = Math.min(minSize.height, maxHeight);
} else if (this.options.display) {
minSize.height = maxHeight;
}
@ -424,6 +449,18 @@
this.ctx.restore();
}
}, this);
if (this.options.scaleLabel.show) {
// Draw the scale label
this.ctx.textAlign = "center";
this.ctx.textBaseline = 'middle';
this.ctx.font = helpers.fontString(this.options.scaleLabel.fontSize, this.options.scaleLabel.fontStyle, this.options.scaleLabel.fontFamily);
var scaleLabelX = this.left + ((this.right - this.left) / 2); // midpoint of the width
var scaleLabelY = this.options.position == 'bottom' ? this.bottom - (this.options.scaleLabel.fontSize / 2) : this.top + (this.options.scaleLabel.fontSize / 2);
this.ctx.fillText(this.options.scaleLabel.labelString, scaleLabelX, scaleLabelY);
}
} else {
// Vertical
if (this.options.gridLines.show) {}
@ -431,6 +468,22 @@
if (this.options.labels.show) {
// Draw the labels
}
if (this.options.scaleLabel.show) {
// Draw the scale label
var scaleLabelX = this.options.position == 'left' ? this.left + (this.options.scaleLabel.fontSize / 2) : this.right - (this.options.scaleLabel.fontSize / 2);
var scaleLabelY = this.top + ((this.bottom - this.top) / 2);
var rotation = this.options.position == 'left' ? -0.5 * Math.PI : 0.5 * Math.PI;
this.ctx.save();
this.ctx.translate(scaleLabelX, scaleLabelY);
this.ctx.rotate(rotation);
this.ctx.textAlign = "center";
this.ctx.font = helpers.fontString(this.options.scaleLabel.fontSize, this.options.scaleLabel.fontStyle, this.options.scaleLabel.fontFamily);
this.ctx.textBaseline = 'middle';
this.ctx.fillText(this.options.scaleLabel.labelString, 0, 0);
this.ctx.restore();
}
}
}
}