101 lines
3.9 KiB
JavaScript
101 lines
3.9 KiB
JavaScript
/**
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* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
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* Copyright (C) 2021-2024 Ad5001
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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.pragma library
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.import "common.js" as Common
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.import "../mathlib.js" as MathLib
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.import "../parameters.js" as P
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.import "../math/latex.js" as Latex
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class Text extends Common.DrawableObject {
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static type(){return 'Text'}
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static displayType(){return qsTr('Text')}
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static displayTypeMultiple(){return qsTr('Texts')}
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static properties() {return {
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[QT_TRANSLATE_NOOP('prop','x')]: new P.Expression(),
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[QT_TRANSLATE_NOOP('prop','y')]: new P.Expression(),
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[QT_TRANSLATE_NOOP('prop','labelPosition')]: P.Enum.Positioning,
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[QT_TRANSLATE_NOOP('prop','text')]: 'string',
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'comment1': QT_TRANSLATE_NOOP(
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'comment',
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'If you have latex enabled, you can use use latex markup in between $$ to create equations.'
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),
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[QT_TRANSLATE_NOOP('prop','disableLatex')]: 'boolean'
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}}
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constructor(name = null, visible = true, color = null, labelContent = 'null',
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x = 1, y = 0, labelPosition = 'center', text = 'New text', disableLatex = false) {
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if(name == null) name = Common.getNewName('t')
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super(name, visible, color, labelContent)
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if(typeof x == 'number' || typeof x == 'string') x = new MathLib.Expression(x.toString())
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this.x = x
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if(typeof y == 'number' || typeof y == 'string') y = new MathLib.Expression(y.toString())
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this.y = y
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this.labelPosition = labelPosition
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this.text = text
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this.disableLatex = disableLatex
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}
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getReadableString() {
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return `${this.name} = "${this.text}"`
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}
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latexMarkupText() {
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// Check whether the text contains latex escaped elements.
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let txt = []
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this.text.split('$$').forEach(function(t) { txt = txt.concat(Latex.variable(t, true).replace(/\$\$/g, '').split('$')) })
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let newTxt = txt[0]
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let i
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// Split between normal text and latex escaped.
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for(i = 0; i < txt.length-1; i++)
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if(i & 0x01) // Every odd number
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newTxt += '\\textsf{'+Latex.variable(txt[i+1])
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else
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newTxt += '}'+txt[i+1]
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// Finished by a }
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if(i & 0x01)
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newTxt += "{"
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return newTxt
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}
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getLatexString() {
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return `${Latex.variable(this.name)} = "\\textsf{${this.latexMarkupText()}}"`
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}
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export() {
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return [this.name, this.visible, this.color.toString(), this.labelContent, this.x.toEditableString(), this.y.toEditableString(), this.labelPosition, this.text, this.disableLatex]
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}
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getLabel() {
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return this.text
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}
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getLatexLabel() {
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return `\\textsf{${this.latexMarkupText()}}`
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}
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draw(canvas, ctx) {
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let yOffset = this.disableLatex ? canvas.textsize-4 : 0
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this.drawLabel(canvas, ctx, this.labelPosition, canvas.x2px(this.x.execute()), canvas.y2px(this.y.execute())+yOffset, this.disableLatex)
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}
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}
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