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Fixed problem with custom fonts for spans in Android.

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This commit is contained in:
Nedyalko Nikolov
2015-11-26 11:28:03 +02:00
parent b577f84425
commit e7a2c1af92
1 changed files with 46 additions and 1 deletions
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47
text/span.android.ts
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@ -2,15 +2,60 @@ import spanCommon = require("./span-common");
import enums = require("ui/enums");
import formattedString = require("text/formatted-string");
import utils = require("utils/utils");
import fontModule = require("ui/styling/font");
global.moduleMerge(spanCommon, exports);
export class CustomTypefaceSpan extends android.text.style.TypefaceSpan {
private typeface: any;
constructor(family: string, typeface: any) {
super(family);
this.typeface = typeface;
return global.__native(this);
}
public updateDrawState(ds: any): void {
CustomTypefaceSpan.applyCustomTypeFace(ds, this.typeface);
}
public updateMeasureState(paint: any): void {
CustomTypefaceSpan.applyCustomTypeFace(paint, this.typeface);
}
private static applyCustomTypeFace(paint: any, tf: any) {
let oldStyle;
let old = paint.getTypeface();
if (old === null) {
oldStyle = 0;
} else {
oldStyle = old.getStyle();
}
let fake = oldStyle & ~tf.getStyle();
if ((fake & android.graphics.Typeface.BOLD) !== 0) {
paint.setFakeBoldText(true);
}
if ((fake & android.graphics.Typeface.ITALIC) !== 0) {
paint.setTextSkewX(-0.25);
}
paint.setTypeface(tf);
}
}
export class Span extends spanCommon.Span {
public updateSpanModifiers(parent: formattedString.FormattedString) {
super.updateSpanModifiers(parent);
var realFontFamily = this.fontFamily || (parent ? parent.fontFamily : undefined);
if (realFontFamily) {
this.spanModifiers.push(new android.text.style.TypefaceSpan(realFontFamily));
let font = new fontModule.Font(realFontFamily,
0,
(realFontAttributes & enums.FontAttributes.Italic) ? enums.FontStyle.italic : enums.FontStyle.normal,
(realFontAttributes & enums.FontAttributes.Bold) ? enums.FontWeight.bold : enums.FontWeight.normal);
let typefaceSpan = new CustomTypefaceSpan(realFontFamily, font.getAndroidTypeface());
this.spanModifiers.push(typefaceSpan);
}
var realFontSize = this.fontSize ||
(parent ? parent.fontSize : undefined) ||