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Move measureTextWidths to render/canvas

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This commit is contained in:
ahocevar
2018-11-13 17:32:27 +01:00
committed by Guillaume Beraudo
parent 3170355b07
commit 3d203f990e
3 changed files with 21 additions and 42 deletions
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19
src/ol/render/canvas.js
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@@ -324,6 +324,25 @@ export function measureTextWidth(font, text) {
}
/**
* @param {string} font Font to use for measuring.
* @param {Array<string>} lines Lines to measure.
* @param {Array<number>} widths Array will be populated with the widths of
* each line.
* @return {number} Width of the whole text.
*/
export function measureTextWidths(font, lines, widths) {
const numLines = lines.length;
let width = 0;
for (let i = 0; i < numLines; ++i) {
const currentWidth = measureTextWidth(font, lines[i]);
width = Math.max(width, currentWidth);
widths.push(currentWidth);
}
return width;
}
/**
* @param {CanvasRenderingContext2D} context Context.
* @param {number} rotation Rotation.

23
src/ol/render/canvas/InstructionsExecutor.js
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@@ -24,7 +24,7 @@ import {
/// Imports copied from TextReplay
import {asColorLike} from '../../colorlike.js';
import {createCanvasContext2D} from '../../dom.js';
import {labelCache, measureTextWidth, defaultTextAlign, measureTextHeight, defaultLineCap, defaultLineDashOffset, defaultLineDash, defaultLineJoin, defaultFillStyle, checkFont, defaultFont, defaultLineWidth, defaultMiterLimit, defaultStrokeStyle, defaultTextBaseline} from '../canvas.js';
import {labelCache, measureTextWidth, measureTextWidths, defaultTextAlign, measureTextHeight, defaultLineCap, defaultLineDashOffset, defaultLineDash, defaultLineJoin, defaultFillStyle, checkFont, defaultFont, defaultLineWidth, defaultMiterLimit, defaultStrokeStyle, defaultTextBaseline} from '../canvas.js';
/**
@@ -1222,24 +1222,3 @@ class CanvasInstructionsExecutor {
export default CanvasInstructionsExecutor;
/////////////// Below is code copied from TextReplay /////////////////
/**
* @param {string} font Font to use for measuring.
* @param {Array<string>} lines Lines to measure.
* @param {Array<number>} widths Array will be populated with the widths of
* each line.
* @return {number} Width of the whole text.
*/
export function measureTextWidths(font, lines, widths) {
const numLines = lines.length;
let width = 0;
for (let i = 0; i < numLines; ++i) {
const currentWidth = measureTextWidth(font, lines[i]);
width = Math.max(width, currentWidth);
widths.push(currentWidth);
}
return width;
}

21
src/ol/render/canvas/TextBuilder.js
View File

@@ -8,7 +8,7 @@ import {intersects} from '../../extent.js';
import {matchingChunk} from '../../geom/flat/straightchunk.js';
import GeometryType from '../../geom/GeometryType.js';
import {CANVAS_LINE_DASH} from '../../has.js';
import {labelCache, measureTextWidth, defaultTextAlign, measureTextHeight, defaultPadding, defaultLineCap, defaultLineDashOffset, defaultLineDash, defaultLineJoin, defaultFillStyle, checkFont, defaultFont, defaultLineWidth, defaultMiterLimit, defaultStrokeStyle, defaultTextBaseline} from '../canvas.js';
import {labelCache, measureTextWidth, measureTextWidths, defaultTextAlign, measureTextHeight, defaultPadding, defaultLineCap, defaultLineDashOffset, defaultLineDash, defaultLineJoin, defaultFillStyle, checkFont, defaultFont, defaultLineWidth, defaultMiterLimit, defaultStrokeStyle, defaultTextBaseline} from '../canvas.js';
import CanvasInstruction from './Instruction.js';
import CanvasInstructionsBuilder from './InstructionsBuilder.js';
import {TEXT_ALIGN} from '../replay.js';
@@ -528,23 +528,4 @@ class CanvasTextBuilder extends CanvasInstructionsBuilder {
}
/**
* @param {string} font Font to use for measuring.
* @param {Array<string>} lines Lines to measure.
* @param {Array<number>} widths Array will be populated with the widths of
* each line.
* @return {number} Width of the whole text.
*/
export function measureTextWidths(font, lines, widths) {
const numLines = lines.length;
let width = 0;
for (let i = 0; i < numLines; ++i) {
const currentWidth = measureTextWidth(font, lines[i]);
width = Math.max(width, currentWidth);
widths.push(currentWidth);
}
return width;
}
export default CanvasTextBuilder;