Propagated property updates to dependent objects.

+ Fixing object expression dependency at setup.
+ Fixing function calls in utils
+ Removing some unnecessary comments

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/LogarithmPlotter.qml

@@ -249,18 +249,24 @@ ApplicationWindow {
             
             // Importing objects
             Objects.currentObjects = {}
-            for(var objType in data['objects']) {
+            Objects.currentObjectsByName = {}
+            for(let objType in data['objects']) {
                 if(Object.keys(Objects.types).indexOf(objType) > -1) {
                     Objects.currentObjects[objType] = []
-                    for(var objData of data['objects'][objType]) {
-                        var obj = new Objects.types[objType](...objData)
+                    for(let objData of data['objects'][objType]) {
+                        let obj = new Objects.types[objType](...objData)
                         Objects.currentObjects[objType].push(obj)
+                        Objects.currentObjectsByName[obj.name] = obj
                     }
                 } else {
                     error += qsTr("Unknown object type: %1.").arg(objType) + "\n";
                 }
             }
             
+            // Updating object dependencies.
+            for(let objName in Objects.currentObjectsByName)
+                Objects.currentObjectsByName[objName].update()
+            
             // Importing history
             if("history" in data)
                 history.unserialize(...data["history"])

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/ObjectLists/EditorDialog.qml

@@ -74,26 +74,36 @@ D.Dialog {
         width: objEditor.width - 20
         spacing: 10
         
+        D.MessageDialog {
+            id: invalidNameDialog
+            title: qsTr("LogarithmPlotter - Invalid object name")
+            text: ""
+            function showDialog(objectName) {
+                text = qsTr("An object with the name '%1' already exists.").arg(objectName)
+                open()
+            }
+        }
+    
         Setting.TextSetting {
             id: nameProperty
             height: 30
             label: qsTr("Name")
             icon: "common/label.svg"
-            min: 1
             width: dlgProperties.width
             value: objEditor.obj.name
             onChanged: function(newValue) {
-                var newName = Utils.parseName(newValue)
+                let newName = Utils.parseName(newValue)
                 if(newName != '' && objEditor.obj.name != newName) {
-                    if(Objects.getObjectByName(newName) != null) {
-                        newName = ObjectsCommons.getNewName(newName)
+                    if(newName in Objects.currentObjectsByName) {
+                        invalidNameDialog.showDialog(newName)
+                    } else {
+                        history.addToHistory(new HistoryLib.NameChanged(
+                            objEditor.obj.name, objEditor.objType, newName
+                        ))
+                        Objects.renameObject(obj.name, newName)
+                        objEditor.obj = Objects.currentObjects[objEditor.objType][objEditor.objIndex]
+                        objectListList.update()
                     }
-                    history.addToHistory(new HistoryLib.NameChanged(
-                        objEditor.obj.name, objEditor.objType, newName
-                    ))
-                    Objects.currentObjects[objEditor.objType][objEditor.objIndex].name = newName
-                    objEditor.obj = Objects.currentObjects[objEditor.objType][objEditor.objIndex]
-                    objectListList.update()
                 }
             }
         }
@@ -213,7 +223,7 @@ D.Dialog {
                             []) : 
                             modelData[1].values) 
                         : []
-                    // Translated verison of the model.
+                    // Translated version of the model.
                     model: selectObjMode ? baseModel : modelData[1].translatedValues
                     visible: paramTypeIn(modelData[1], ['ObjectType', 'Enum'])
                     currentIndex: baseModel.indexOf(selectObjMode ? objEditor.obj[modelData[0]].name : objEditor.obj[modelData[0]])
@@ -222,7 +232,7 @@ D.Dialog {
                         if(selectObjMode) {
                             // This is only done when what we're selecting are Objects.
                             // Setting object property.
-                            var selectedObj = Objects.getObjectByName(baseModel[newIndex], modelData[1].objType)
+                            var selectedObj = Objects.currentObjectsByName[baseModel[newIndex]]
                             if(newIndex != 0) {
                                 // Make sure we don't set the object to null.
                                 if(selectedObj == null) {

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/ObjectLists/ObjectLists.qml

@@ -193,8 +193,7 @@ ScrollView {
                         history.addToHistory(new HistoryLib.DeleteObject(
                             obj.name, objType, obj.export()
                         ))
-                        Objects.currentObjects[objType][index].delete()
-                        Objects.currentObjects[objType].splice(index, 1)
+                        Objects.deleteObject(obj.name)
                         objectListList.update()
                     }
                 }

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/PickLocationOverlay.qml

@@ -98,7 +98,7 @@ Item {
                         'Expression': () => new MathLib.Expression(newValue),
                         'number': () => parseFloat(newValue)
                     }[Objects.types[objType].properties()[propertyX]]()
-                    let obj = Objects.getObjectByName(objName, objType)
+                    let obj = Objects.currentObjectsByName[objName] // getObjectByName(objName, objType)
                     history.addToHistory(new HistoryLib.EditedProperty(
                         objName, objType, propertyX, obj[propertyX], newValue
                     ))
@@ -112,7 +112,7 @@ Item {
                         'Expression': () => new MathLib.Expression(newValue),
                         'number': () => parseFloat(newValue)
                     }[Objects.types[objType].properties()[propertyY]]()
-                    let obj = Objects.getObjectByName(objName, objType)
+                    let obj = Objects.currentObjectsByName[objName] // Objects.getObjectByName(objName, objType)
                     history.addToHistory(new HistoryLib.EditedProperty(
                         objName, objType, propertyY, obj[propertyY], newValue
                     ))

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/expr-eval.js

@@ -194,6 +194,7 @@ function evaluate(tokens, expr, values) {
         nstack.push(f(resolveExpression(n1, values), resolveExpression(n2, values), resolveExpression(n3, values)));
       }
     } else if (type === IVAR) {
+      // Check for variable value
       if (item.value in expr.functions) {
         nstack.push(expr.functions[item.value]);
       } else if (item.value in expr.unaryOps && expr.parser.isOperatorEnabled(item.value)) {
@@ -219,8 +220,11 @@ function evaluate(tokens, expr, values) {
       f = nstack.pop();
       if (f.apply && f.call) {
         nstack.push(f.apply(undefined, args));
+      } else if(f.execute) {
+        // Objects & expressions execution
+        nstack.push(f.execute.apply(f, args));
       } else {
-        throw new Error(f + ' is not a function');
+        throw new Error(f + ' cannot be executed');
       }
     } else if (type === IFUNDEF) {
       // Create closure to keep references to arguments and expression

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/history/create.js

@@ -36,9 +36,11 @@ class CreateNewObject extends C.Action {
 
     
     undo() {
-        var targetIndex = Objects.getObjectsName(this.targetType).indexOf(this.targetName)
-        Objects.currentObjects[this.targetType][targetIndex].delete()
-        Objects.currentObjects[this.targetType].splice(targetIndex, 1)
+        Objects.deleteObject(this.targetName)
+        //let targetIndex = Objects.getObjectsName(this.targetType).indexOf(this.targetName)
+        //delete Objects.currentObjectsByName[this.targetName]
+        //Objects.currentObjects[this.targetType][targetIndex].delete()
+        //Objects.currentObjects[this.targetType].splice(targetIndex, 1)
     }
     
     redo() {

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/history/editproperty.js

@@ -49,19 +49,21 @@ class EditedProperty extends C.Action {
                 this.newValue = MathLib.parseDomain(this.newValue);
             } else {
                 // Objects
-                this.previousValue = Objects.getObjectByName(this.previousValue);
-                this.newValue = Objects.getObjectByName(this.newValue);
+                this.previousValue = Objects.currentObjectsByName[this.previousValue] // Objects.getObjectByName(this.previousValue);
+                this.newValue = Objects.currentObjectsByName[this.newValue] // Objects.getObjectByName(this.newValue);
             }
         }
         this.setReadableValues()
     }
     
     undo() {
-        Objects.getObjectByName(this.targetName, this.targetType)[this.targetProperty] = this.previousValue
+        Objects.currentObjectsByName[this.targetName][this.targetProperty] = this.previousValue
+        Objects.currentObjectsByName[this.targetName].update()
     }
     
     redo() {
-        Objects.getObjectByName(this.targetName, this.targetType)[this.targetProperty] = this.newValue
+        Objects.currentObjectsByName[this.targetName][this.targetProperty] = this.newValue
+        Objects.currentObjectsByName[this.targetName].update()
     }
     
     export() {

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/history/name.js

@@ -40,11 +40,15 @@ class NameChanged extends EP.EditedProperty {
     }
     
     undo() {
-        Objects.getObjectByName(this.newValue, this.targetType)['name'] = this.previousValue
+        Objects.renameObject(this.newValue, this.previousValue)
     }
     
     redo() {
-        Objects.getObjectByName(this.previousValue, this.targetType)['name'] = this.newValue
+        Objects.renameObject(this.previousValue, this.newValue)
+        //let obj = Objects.currentObjectsByName[this.previousValue]
+        //obj.name = this.newValue
+        //Objects.currentObjectsByName[this.newValue] = obj
+        //delete Objects.currentObjectsByName[this.previousValue]
     }
     
     getReadableString() {

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/math/common.js

@@ -22,7 +22,9 @@
 .import "../utils.js" as Utils
 .import "latex.js" as Latex
 
-var evalVariables = { // Variables not provided by expr-eval.js, needs to be provided manualy
+const DERIVATION_PRECISION = 0.1
+
+var evalVariables = { // Variables not provided by expr-eval.js, needs to be provided manually
     "pi": Math.PI,
     "π": Math.PI,
     "inf": Infinity,
@@ -33,18 +35,21 @@ var evalVariables = { // Variables not provided by expr-eval.js, needs to be pro
 }
 
 var currentVars = {}
+var currentObjectsByName = {} // Mirror of currentObjectsByName in objects.js
 
 const parser = new ExprEval.Parser()
+
+parser.consts = Object.assign({}, parser.consts, evalVariables)
+
+// Function definition
 parser.functions.integral = function(a, b, f, variable) {
     // https://en.wikipedia.org/wiki/Simpson%27s_rule
+    // Simpler, faster than tokenizing the expression
     f = parser.parse(f).toJSFunction(variable, currentVars)
     return (b-a)/6*(f(a)+4*f((a+b)/2)+f(b))
 }
 
-const DERIVATION_PRECISION = 0.1
-
 parser.functions.derivative = function(f, variable, x) {
     f = parser.parse(f).toJSFunction(variable, currentVars)
     return (f(x+DERIVATION_PRECISION/2)-f(x-DERIVATION_PRECISION/2))/DERIVATION_PRECISION
 }
-

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/math/expression.js

@@ -30,23 +30,42 @@ class Expression {
         this.expr = expr
         this.calc = C.parser.parse(expr).simplify()
         this.cached = this.isConstant()
-        this.cachedValue = this.cached ? this.calc.evaluate(C.evalVariables) : null
+        this.cachedValue = this.cached && this.allRequirementsFullfilled() ? this.calc.evaluate(C.currentObjectsByName) : null
         this.latexMarkup = Latex.expression(this.calc.tokens)
     }
     
     isConstant() {
-        return !this.expr.includes("x") && !this.expr.includes("n")
+        let vars = this.calc.variables()
+        return !vars.includes("x") && !vars.includes("n")
+    }
+    
+    requiredObjects() {
+        return this.calc.variables().filter(objName => objName != "x" && objName != "n")
+    }
+    
+    allRequirementsFullfilled() {
+        return this.requiredObjects().every(objName => objName in C.currentObjectsByName)
+    }
+    
+    recache() {
+        if(this.cached)
+            this.cachedValue = this.calc.evaluate(C.currentObjectsByName)
     }
     
     execute(x = 1) {
-        if(this.cached) return this.cachedValue
-        C.currentVars = Object.assign({'x': x}, C.evalVariables)
+        if(this.cached) {
+            if(this.cachedValue == null)
+                this.cachedValue = this.calc.evaluate(C.currentObjectsByName)
+            return this.cachedValue
+        }
+        C.currentVars = Object.assign({'x': x}, C.currentObjectsByName)
+        //console.log("Executing", this.expr, "with", JSON.stringify(C.currentVars))
         return this.calc.evaluate(C.currentVars)
     }
     
     simplify(x) {
         var expr = this.calc.substitute('x', x).simplify()
-        if(expr.evaluate(C.evalVariables) == 0) return '0'
+        if(expr.evaluate() == 0) return '0'
         var str = Utils.makeExpressionReadable(expr.toString());
         if(str != undefined && str.match(/^\d*\.\d+$/)) {
             if(str.split('.')[1].split('0').length > 7) {
@@ -66,7 +85,7 @@ class Expression {
     }
     
     toString(forceSign=false) {
-        var str = Utils.makeExpressionReadable(this.calc.toString())
+        let str = Utils.makeExpressionReadable(this.calc.toString())
         if(str[0] != '-' && forceSign) str = '+' + str
         return str
     }

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/math/sequence.js

@@ -39,7 +39,7 @@ class Sequence extends Expr.Expression {
             if(['string', 'number'].includes(typeof this.calcValues[n])) {
                 let parsed = C.parser.parse(this.calcValues[n].toString()).simplify()
                 this.latexValues[n] = Latex.expression(parsed.tokens)
-                this.calcValues[n] = parsed.evaluate(C.evalVariables)
+                this.calcValues[n] = parsed.evaluate()
             }
         this.valuePlus = parseInt(valuePlus)
     }
@@ -65,9 +65,10 @@ class Sequence extends Expr.Expression {
     cache(n = 1) {
         var str = Utils.simplifyExpression(this.calc.substitute('n', n-this.valuePlus).toString())
         var expr = C.parser.parse(str).simplify()
-        var l = {'n': n-this.valuePlus} // Just in case, add n (for custom functions)
-        l[this.name] = this.calcValues
-        C.currentVars = Object.assign(l, C.evalVariables)
+        C.currentVars = Object.assign(
+            {'n': n-this.valuePlus, [this.name]: this.calcValues}, // Just in case, add n (for custom functions)
+            C.currentObjectsByName
+        )
         this.calcValues[n] = expr.evaluate(C.currentVars)
     }
     

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objects.js

@@ -19,36 +19,44 @@
 .pragma library
 
 .import "utils.js" as Utils
-.import "mathlib.js" as MathLib
+.import "math/common.js" as MathCommons
 .import "parameters.js" as P
 
 var types = {}
 
 var currentObjects = {}
+var currentObjectsByName = {}
+MathCommons.currentObjectsByName = currentObjectsByName // Required for using objects in variables.
  
-function getObjectByName(objName, objType = null) {
-    var objectTypes = Object.keys(currentObjects)
-    if(typeof objType == 'string' && objType != "") {
-        if(objType == "ExecutableObject") {
-            objectTypes = getExecutableTypes()
-        } else if(currentObjects[objType] != undefined) {
-            objectTypes = [objType]
-        }
-    }
-    if(Array.isArray(objType)) objectTypes = objType
-    var retObj = null
-    if(objName != "" && objName != null) {
-        objectTypes.forEach(function(objType){
-            if(currentObjects[objType] == undefined) return null
-            currentObjects[objType].forEach(function(obj){
-                if(obj.name == objName) retObj = obj
-            })
-        })
-    }
-    return retObj
+function renameObject(oldName, newName) {
+    /**
+     * Renames an object from its old name to the new one.
+     * @param {string} oldName - Current name of the object.
+     * @param {string} newName - Name to rename the object to.
+     */
+    let obj = currentObjectsByName[oldName]
+    delete currentObjectsByName[oldName]
+    currentObjectsByName[newName] = obj
+    obj.name = newName
+}
+
+function deleteObject(objName) {
+    /**
+     * Deletes an object by its given name.
+     * @param {string} objName - Current name of the object.
+     */
+    let obj = currentObjectsByName[objName]
+    delete currentObjectsByName[objName]
+    currentObjects[obj.type].splice(currentObjects[obj.type].indexOf(obj),1)
+    obj.delete()
 }
 
 function getObjectsName(objType) {
+    /**
+     * Gets a list of all names of a certain object type.
+     * @param {string} objType - Type of the object to query. Can be ExecutableObject for all ExecutableObjects.
+     * @return {array} List of names of the objects.
+     */
     if(objType == "ExecutableObject") {
         var types = getExecutableTypes()
         var elementNames = ['']
@@ -62,15 +70,26 @@ function getObjectsName(objType) {
 }
 
 function getExecutableTypes() {
+    /**
+     * Returns a list of all object types which are executable objects.
+     * @return {array} List of all object types which are executable objects.
+     */
     return Object.keys(currentObjects).filter(objType => types[objType].executable())
 }
 
 function createNewRegisteredObject(objType, args=[]) {
+    /**
+     * Creates and register an object in the database.
+     * @param {string} objType - Type of the object to create.
+     * @param {string} args - List of arguments for the objects (can be empty).
+     * @return {[objType]} Newly created object.
+     */
     if(Object.keys(types).indexOf(objType) == -1) return null // Object type does not exist.
     var newobj = new types[objType](...args)
     if(Object.keys(currentObjects).indexOf(objType) == -1) {
         currentObjects[objType] = []
     }
     currentObjects[objType].push(newobj)
+    currentObjectsByName[newobj.name] = newobj
     return newobj
 }

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/common.js

@@ -21,6 +21,8 @@
 .import "../utils.js" as Utils
 .import "../objects.js" as Objects
 .import "../math/latex.js" as Latex
+.import "../parameters.js" as P
+.import "../math/common.js" as C
 
 // This file contains the default data to be imported from all other objects
 
@@ -40,7 +42,7 @@ function getNewName(allowedLetters) {
         var num = Math.floor((newid - (newid % allowedLetters.length)) / allowedLetters.length)
         ret = letter + (num > 0 ? Utils.textsub(num-1) : '')
         newid += 1
-    } while(Objects.getObjectByName(ret) != null)
+    } while(ret in Objects.currentObjectsByName)
     return ret
 }
 
@@ -116,6 +118,7 @@ class DrawableObject {
         this.color = color
         this.labelContent = labelContent // "null", "name", "name + value"
         this.requiredBy = []
+        this.requires = []
     }
     
     /**
@@ -187,18 +190,40 @@ class DrawableObject {
      * Callback method when one of the properties of the object is updated.
      */
     update() {
-        for(var req of this.requiredBy) {
+        // Refreshing dependencies.
+        for(let obj of this.requires)
+            obj.requiredBy = obj.requiredBy.filter(dep => dep != this)
+        // Checking objects this one depends on
+        this.requires = []
+        let properties = this.constructor.properties()
+        for(let property in properties)
+            if(properties[property] == 'Expression' && this[property] != null) {
+                // Expressions with dependencies
+                for(let objName of this[property].requiredObjects()) {
+                    this.requires.push(C.currentObjectsByName[objName])
+                    C.currentObjectsByName[objName].requiredBy.push(this)
+                }
+                if(this[property].cached && this[property].requiredObjects().length > 0)
+                    // Recalculate
+                    this[property].recache()
+                    
+            } else if(typeof properties[property] == 'object' && 'type' in properties[property] && properties[property] == 'ObjectType' && this[property] != null) {
+                // Object dependency
+                this.requires.push(this[property])
+                this[property].requiredBy.push(this)
+            }
+        
+        // Updating objects dependent on this one
+        for(let req of this.requiredBy)
             req.update()
-        }
     }
     
     /**
      * Callback method when the object is about to get deleted.
      */
     delete() {
-        for(var toRemove of this.requiredBy) {
-            toRemove.delete()
-            Objects.currentObjects[toRemove.type] = Objects.currentObjects[toRemove.type].filter(obj => obj.name != toRemove.name)
+        for(let toRemove of this.requiredBy) {
+            Objects.deleteObject(toRemove.name)
         }
     }
     
@@ -261,7 +286,7 @@ class DrawableObject {
     }
     
     /**
-     * Automaticly draw text (by default the label of the object on the \c canvas with
+     * Automatically draw text (by default the label of the object on the \c canvas with
      * the 2D context \c ctx depending on user settings.
      * This method takes into account both the \c posX and \c posY of where the label
      * should be displayed, including the \c labelPosition relative to it.

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/gainbode.js

@@ -49,7 +49,7 @@ class GainBode extends Common.ExecutableObject {
         this.type = 'Gain Bode'
         if(typeof om_0 == "string") {
             // Point name or create one
-            om_0 = Objects.getObjectByName(om_0, 'Point')
+            om_0 = Objects.currentObjectsByName[om_0]
             if(om_0 == null) {
                 // Create new point
                 om_0 = Objects.createNewRegisteredObject('Point')

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/phasebode.js

@@ -48,7 +48,7 @@ class PhaseBode extends Common.ExecutableObject {
         this.phase = phase
         if(typeof om_0 == "string") {
             // Point name or create one
-            om_0 = Objects.getObjectByName(om_0, 'Point')
+            om_0 = Objects.currentObjectsByName[om_0]
             if(om_0 == null) {
                 // Create new point
                 om_0 = Objects.createNewRegisteredObject('Point')

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/repartition.js

@@ -27,14 +27,6 @@ class RepartitionFunction extends Common.ExecutableObject {
     static type(){return 'Repartition'}
     static displayType(){return qsTr('Repartition')}
     static displayTypeMultiple(){return qsTr('Repartition functions')}
-    /*static properties() {return {
-        'beginIncluded': 'boolean',
-        'drawLineEnds': 'boolean',
-        'comment1': 'Note: Specify the properties for each potential result.',
-        'probabilities': new P.Dictionary('string', 'float', /^-?[\d.,]+$/, /^-?[\d\.,]+$/, 'P({name} = ', ') = '),
-        'labelPosition': new P.Enum('above', 'below', 'left', 'right', 'above-left', 'above-right', 'below-left', 'below-right'),
-        'labelX': 'number'
-    }}*/
     static properties() {return {
         [QT_TRANSLATE_NOOP('prop','labelPosition')]: P.Enum.Position,
         [QT_TRANSLATE_NOOP('prop','labelX')]:        'number',

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/sommephasesbode.js

@@ -30,10 +30,6 @@ class SommePhasesBode extends Common.ExecutableObject {
     static displayType(){return qsTr('Bode Phases Sum')}
     static displayTypeMultiple(){return qsTr('Bode Phases Sum')}
     static createable() {return false}
-    /*static properties() {return {
-        'labelPosition': new P.Enum('above', 'below', 'left', 'right', 'above-left', 'above-right', 'below-left', 'below-right'),
-        'labelX': 'number'
-    }}*/
     static properties() {return {
         [QT_TRANSLATE_NOOP('prop','labelPosition')]: P.Enum.Position,
         [QT_TRANSLATE_NOOP('prop','labelX')]:        'number',

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/text.js

@@ -29,12 +29,6 @@ class Text extends Common.DrawableObject  {
     static type(){return 'Text'}
     static displayType(){return qsTr('Text')}
     static displayTypeMultiple(){return qsTr('Texts')}
-    /*static properties() {return {
-        'x': 'Expression',
-        'y': 'Expression',
-        'labelPosition': new P.Enum('center', 'above', 'below', 'left', 'right', 'above-left', 'above-right', 'below-left', 'below-right'),
-        'text': 'string',
-    }}*/
     static properties() {return {
         [QT_TRANSLATE_NOOP('prop','x')]:             'Expression',
         [QT_TRANSLATE_NOOP('prop','y')]:             'Expression',

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/objs/xcursor.js

@@ -56,7 +56,7 @@ class XCursor extends Common.DrawableObject {
         this.x = x
         this.targetElement = targetElement
         if(typeof targetElement == "string") {
-            this.targetElement = Objects.getObjectByName(targetElement, elementTypes)
+            this.targetElement = Objects.currentObjectsByName[targetElement]
         }
         this.labelPosition = labelPosition
         this.displayStyle = displayStyle

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/utils.js

@@ -129,11 +129,11 @@ function simplifyExpression(str) {
     var replacements = [
         // Operations not done by parser.
         [// Decomposition way 2
-            /(^.?|[+-] |\()([-.\d\w]+) ([*/]) \((([-.\d\w] [*/] )?[-\d\w.]+) ([+\-]) (([-.\d\w] [*/] )?[\d\w.+]+)\)(.?$| [+-]|\))/g,
+            /(^|[+-] |\()([-.\d\w]+) ([*/]) \((([-.\d\w] [*/] )?[-\d\w.]+) ([+\-]) (([-.\d\w] [*/] )?[\d\w.+]+)\)($| [+-]|\))/g,
             "$1$2 $3 $4 $6 $2 $3 $7$9"
         ],
         [ // Decomposition way 2
-            /(^.?|[+-] |\()\((([-.\d\w] [*/] )?[-\d\w.]+) ([+\-]) (([-.\d\w] [*/] )?[\d\w.+]+)\) ([*/]) ([-.\d\w]+)(.?$| [+-]|\))/g,
+            /(^|[+-] |\()\((([-.\d\w] [*/] )?[-\d\w.]+) ([+\-]) (([-.\d\w] [*/] )?[\d\w.+]+)\) ([*/]) ([-.\d\w]+)($| [+-]|\))/g,
             "$1$2 $7 $8 $4 $5 $7 $8$9"
         ],
         [ // Factorisation of π elements.
@@ -159,19 +159,19 @@ function simplifyExpression(str) {
             }
         ],
         [ // Removing parenthesis when content is only added from both sides.
-            /(^.?|[+-] |\()\(([^)(]+)\)(.?$| [+-]|\))/g,
+            /(^|[+-] |\()\(([^)(]+)\)($| [+-]|\))/g,
             function(match, b4, middle, after) {return `${b4}${middle}${after}`}
         ],
         [ // Removing parenthesis when content is only multiplied.
-            /(^.?|[*\/] |\()\(([^)(+-]+)\)(.?$| [*\/+-]|\))/g,
+            /(^|[*\/] |\()\(([^)(+-]+)\)($| [*\/+-]|\))/g,
             function(match, b4, middle, after) {return `${b4}${middle}${after}`}
         ],
         [ // Removing parenthesis when content is only multiplied.
-            /(^.?|[*\/-+] |\()\(([^)(+-]+)\)(.?$| [*\/]|\))/g,
+            /(^|[*\/-+] |\()\(([^)(+-]+)\)($| [*\/]|\))/g,
             function(match, b4, middle, after) {return `${b4}${middle}${after}`}
         ],
         [// Simplification additions/substractions.
-            /(^.?|[^*\/] |\()([-.\d]+) (\+|\-) (\([^)(]+\)|[^)(]+) (\+|\-) ([-.\d]+)(.?$| [^*\/]|\))/g,
+            /(^|[^*\/] |\()([-.\d]+) (\+|\-) (\([^)(]+\)|[^)(]+) (\+|\-) ([-.\d]+)($| [^*\/]|\))/g,
             function(match, b4, n1, op1, middle, op2, n2, after) {
                 var total
                 if(op2 == '+') {
@@ -258,7 +258,7 @@ function makeExpressionReadable(str) {
         [/\[([^\[\]]+)\]/g, function(match, p1) { return textsub(p1) }],
         [/(\d|\))×/g, '$1'],
         //[/×(\d|\()/g, '$1'],
-        [/\(([^)(+.\/-]+)\)/g, "$1"],
+        [/[^a-z]\(([^)(+.\/-]+)\)/g, "$1"],
         [/integral\((.+),\s?(.+),\s?("|')(.+)("|'),\s?("|')(.+)("|')\)/g, function(match, a, b, p1, body, p2, p3, by, p4) {
             if(a.length < b.length) {
                 return `∫${textsub(a)}${textsup(b)} ${body} d${by}`

LogarithmPlotter/util/helper.py

@@ -149,6 +149,7 @@ class Helper(QObject):
     @Slot()
     def fetchChangelog(self):
         changelog_cache_path = path.join(path.dirname(path.realpath(__file__)), "CHANGELOG.md")
+        print(changelog_cache_path)
         if path.exists(changelog_cache_path): 
             # We have a cached version of the changelog, for env that don't have access to the internet.
             f = open(changelog_cache_path);