export default class DrawHelper {
fontBySize(size) {
return `${size}px ${this.fontName}`;
}
drawPercentBar(x, y, w, h, font, fontSize, bookPos, textLength) {
const pad = 3;
const fh = h - 2*pad;
const fh2 = fh/2;
const t1 = `${Math.floor((bookPos + 1)/1000)}k/${Math.floor(textLength/1000)}k`;
const w1 = this.measureTextFont(t1, font) + fh2;
const read = (bookPos + 1)/textLength;
const t2 = `${(read*100).toFixed(2)}%`;
const w2 = this.measureTextFont(t2, font);
let w3 = w - w1 - w2;
let out = '';
if (w1 + w2 <= w)
out += this.fillTextShift(t1, x, y, font, fontSize);
if (w1 + w2 + w3 <= w && w3 > (10 + fh2)) {
const barWidth = w - w1 - w2 - fh2;
out += this.strokeRect(x + w1, y + pad, barWidth, fh - 2, this.statusBarColor);
out += this.fillRect(x + w1 + 2, y + pad + 2, (barWidth - 4)*read, fh - 6, this.statusBarColor);
}
if (w1 <= w)
out += this.fillTextShift(t2, x + w1 + w3, y, font, fontSize);
return out;
}
drawStatusBar(statusBarTop, statusBarHeight, bookPos, textLength, title) {
let out = `
`;
const fontSize = statusBarHeight*0.75;
const font = 'bold ' + this.fontBySize(fontSize);
out += this.fillRect(0, (statusBarTop ? statusBarHeight : 0), this.realWidth, 1, this.statusBarColor);
const date = new Date();
const time = `${date.getHours().toString().padStart(2, '0')}:${date.getMinutes().toString().padStart(2, '0')}`;
const timeW = this.measureTextFont(time, font);
out += this.fillTextShift(time, this.realWidth - timeW - fontSize, 2, font, fontSize);
out += this.fillTextShift(this.fittingString(title, this.realWidth/2 - fontSize - 3, font), fontSize, 2, font, fontSize);
out += this.drawPercentBar(this.realWidth/2, 2, this.realWidth/2 - timeW - 2*fontSize, statusBarHeight, font, fontSize, bookPos, textLength);
out += '
';
return out;
}
statusBarClickable(statusBarTop, statusBarHeight) {
return ``;
}
fittingString(str, maxWidth, font) {
let w = this.measureTextFont(str, font);
const ellipsis = '…';
const ellipsisWidth = this.measureTextFont(ellipsis, font);
if (w <= maxWidth || w <= ellipsisWidth) {
return str;
} else {
let len = str.length;
while (w >= maxWidth - ellipsisWidth && len-- > 0) {
str = str.substring(0, len);
w = this.measureTextFont(str, font);
}
return str + ellipsis;
}
}
fillTextShift(text, x, y, font, size, css) {
return this.fillText(text, x, y + size*this.fontShift, font, css);
}
fillText(text, x, y, font, css) {
css = (css ? css : '');
return `${text}
`;
}
fillRect(x, y, w, h, color) {
return ``;
}
strokeRect(x, y, w, h, color) {
return ``;
}
}