Ad5001/LogarithmPlotter
Ad5001/LogarithmPlotter
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History of actions (CTRL+Z, CTRL+SHIFT+Z)! Fixing a lot of bugs in the process

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Adsooi 2021-04-06 19:06:09 +02:00
parent d0a4494038
commit a2ff0da4cf
10 changed files with 311 additions and 36 deletions
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128
qml/js/historylib.js Normal file
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@ -0,0 +1,128 @@
/**
* Logarithm Graph Creator - Create graphs with logarithm scales.
* Copyright (C) 2020 Ad5001
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
// This library helps containing actions to be undone or redone (in other words, editing history)
// Each type of event is repertoried as an action that can be listed for everything that's undoable.
.pragma library
.import "objects.js" as Objects
.import "utils.js" as Utils
class Action {
// Type of the action done.
static type(){return 'Unknown'}
// TargetName is the name of the object that's targeted by the event.
constructor(targetName = "", targetType = "Point") {
this.targetName = targetName
this.targetType = targetType
}
undo() {}
redo() {}
getReadableString() {
return 'Unknown action'
}
}
class CreateNewObject extends Action {
// Action used for the creation of an object
static type(){return 'CreateNewObject'}
constructor(targetName = "", targetType = "Point", properties = []) {
super(targetName, targetType)
this.targetProperties = properties
}
undo() {
var targetIndex = Objects.getObjectsName(this.targetType).indexOf(this.targetName)
Objects.currentObjects[this.targetType][targetIndex].delete()
Objects.currentObjects[this.targetType].splice(targetIndex, 1)
}
redo() {
Objects.createNewRegisteredObject(this.targetType, this.targetProperties)
}
getReadableString() {
return `New ${this.targetType} ${this.targetName} created.`
}
}
class DeleteObject extends CreateNewObject {
// Action used at the deletion of an object. Basicly the same thing as creating a new object, except Redo & Undo are reversed.
static type(){return 'DeleteObject'}
undo() {
super.redo()
}
redo() {
super.undo()
}
getReadableString() {
return `${this.targetType} ${this.targetName} deleted.`
}
}
class EditedProperty extends Action {
// Action used everytime an object's property has been changed
static type(){return 'EditedProperty'}
constructor(targetName = "", targetType = "Point", targetProperty = "visible", previousValue = false, newValue = true) {
super(targetName, targetType)
this.targetProperty = targetProperty
this.targetPropertyReadable = Utils.camelCase2readable(this.targetProperty)
this.previousValue = previousValue
this.newValue = newValue
}
undo() {
Objects.getObjectByName(this.targetName, this.targetType)[this.targetProperty] = this.previousValue
}
redo() {
Objects.getObjectByName(this.targetName, this.targetType)[this.targetProperty] = this.newValue
}
getReadableString() {
var prev = this.previousValue == null ? ""+this.previousValue : this.previousValue.toString()
var next = this.newValue == null ? ""+this.newValue : this.newValue.toString()
return `${this.targetPropertyReadable} of ${this.targetType} ${this.targetName} changed from "${prev}" to "${next}".`
}
}
class EditedVisibility extends EditedProperty {
// Action used everytime an object's property has been changed
static type(){return 'EditedVisibility'}
constructor(targetName = "", targetType = "Point", newValue = true) {
super(targetName, targetType, "visible", !newValue, newValue)
}
getReadableString() {
if(this.newValue) {
return `${this.targetType} ${this.targetName} shown.`
} else {
return `${this.targetType} ${this.targetName} hidden.`
}
}
}

2
qml/js/mathlib.js
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@ -580,7 +580,7 @@ class MinusDomain extends Domain {
static import(frm) {
var domains = frm.trim().split("∖")
if(domains.length == 1) domains = frm.trim().split("\\") // Fallback
var dom1 = parseDomain(domains.pop())
var dom1 = parseDomain(domains.shift())
var dom2 = parseDomain(domains.join('∪'))
return new MinusDomain(dom1, dom2)
}

50
qml/js/objects.js
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@ -22,6 +22,8 @@
.import "mathlib.js" as MathLib
.import "parameters.js" as P
var history = null
var HistoryLib = null
function getNewName(allowedLetters) {
var newid = 0
@ -375,6 +377,7 @@ class GainBode extends ExecutableObject {
om_0.name = getNewName('ω')
om_0.labelContent = 'name'
om_0.color = this.color
history.addToHistory(new HistoryLib.CreateNewObject(om_0.name, 'Point', om_0.export()))
labelPosition = 'below'
}
om_0.requiredBy.push(this)
@ -654,6 +657,7 @@ class PhaseBode extends ExecutableObject {
om_0.color = this.color
om_0.labelContent = 'name'
om_0.labelPosition = this.phase.execute() >= 0 ? 'bottom' : 'top'
history.addToHistory(new HistoryLib.CreateNewObject(om_0.name, 'Point', om_0.export()))
labelPosition = 'below'
}
om_0.requiredBy.push(this)
@ -886,14 +890,9 @@ class CursorX extends DrawableObject {
static type(){return 'X Cursor'}
static typeMultiple(){return 'X Cursors'}
static properties() {
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
var elementNames = ['']
elementTypes.forEach(function(elemType){
elementNames = elementNames.concat(currentObjects[elemType].map(obj => obj.name))
})
return {
'x': 'Expression',
'targetElement': new P.Enum(...elementNames),
'targetElement': new P.ObjectType('ExecutableObject'),
'labelPosition': new P.Enum('left', 'right'),
'approximate': 'Boolean',
'rounding': 'number',
@ -917,6 +916,9 @@ class CursorX extends DrawableObject {
if(typeof x == 'number' || typeof x == 'string') x = new MathLib.Expression(x.toString())
this.x = x
this.targetElement = targetElement
if(typeof targetElement == "string") {
this.targetElement = getObjectByName(targetElement, elementTypes)
}
this.labelPosition = labelPosition
this.displayStyle = displayStyle
this.targetValuePosition = targetValuePosition
@ -924,17 +926,17 @@ class CursorX extends DrawableObject {
export() {
return [this.name, this.visible, this.color.toString(), this.labelContent,
this.x.toEditableString(), this.targetElement, this.labelPosition,
this.x.toEditableString(), this.targetElement == null ? null : this.targetElement.name, this.labelPosition,
this.approximate, this.rounding, this.displayStyle, this.targetValuePosition]
}
getReadableString() {
if(this.getTargetElement() == null) return `${this.name} = ${this.x.toString()}`
if(this.targetElement == null) return `${this.name} = ${this.x.toString()}`
return `${this.name} = ${this.x.toString()}\n${this.getTargetValueLabel()}`
}
getTargetValueLabel() {
var t = this.getTargetElement()
var t = this.targetElement
var approx = ''
if(this.approximate) {
approx = t.execute(this.x.execute())
@ -944,12 +946,6 @@ class CursorX extends DrawableObject {
(this.approximate ? ' ≈ ' + approx : '')
}
getTargetElement() {
// TODO: Use the dependency system instead.
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
return getObjectByName(this.targetElement, elementTypes)
}
getLabel() {
switch(this.labelContent) {
case 'name':
@ -1005,10 +1001,10 @@ class CursorX extends DrawableObject {
break;
}
if(this.targetValuePosition == 'Next to target' && this.getTargetElement() != null) {
if(this.targetValuePosition == 'Next to target' && this.targetElement != null) {
var text = this.getTargetValueLabel()
var textSize = canvas.measureText(ctx, text)
var ypox = canvas.y2px(this.getTargetElement().execute(this.x.execute()))
var ypox = canvas.y2px(this.targetElement.execute(this.x.execute()))
switch(this.labelPosition) {
case 'left':
canvas.drawVisibleText(ctx, text, xpos-textSize.width-5, ypox+textSize.height)
@ -1303,8 +1299,11 @@ var currentObjects = {}
function getObjectByName(objName, objType = null) {
var objectTypes = Object.keys(currentObjects)
if(typeof objType == 'string') {
if(currentObjects[objType] == undefined) return null
objectTypes = [objType]
if(objType == "ExecutableObject") {
objectTypes = getExecutableTypes()
} else if(currentObjects[objType] != undefined) {
objectTypes = [objType]
}
}
if(Array.isArray(objType)) objectTypes = objType
var retObj = null
@ -1318,10 +1317,23 @@ function getObjectByName(objName, objType = null) {
}
function getObjectsName(objType) {
if(objType == "ExecutableObject") {
var types = getExecutableTypes()
var elementNames = ['']
types.forEach(function(elemType){
elementNames = elementNames.concat(currentObjects[elemType].map(obj => obj.name))
})
console.log(elementNames)
return elementNames
}
if(currentObjects[objType] == undefined) return []
return currentObjects[objType].map(obj => obj.name)
}
function getExecutableTypes() {
return Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
}
function createNewRegisteredObject(objType, args=[]) {
if(Object.keys(types).indexOf(objType) == -1) return null // Object type does not exist.
var newobj = new types[objType](...args)