diff options
Diffstat (limited to 'src-qt5/desktop-utils/lumina-calculator/mainUI.cpp')
| -rw-r--r-- | src-qt5/desktop-utils/lumina-calculator/mainUI.cpp | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/src-qt5/desktop-utils/lumina-calculator/mainUI.cpp b/src-qt5/desktop-utils/lumina-calculator/mainUI.cpp new file mode 100644 index 00000000..057e4ddd --- /dev/null +++ b/src-qt5/desktop-utils/lumina-calculator/mainUI.cpp @@ -0,0 +1,339 @@ +//=========================================== +// Lumina Desktop source code +// Copyright (c) 2016, Ken Moore +// Available under the 3-clause BSD license +// See the LICENSE file for full details +//=========================================== +#include "mainUI.h" +#include "ui_mainUI.h" + +#include <QDebug> +#include <QClipboard> +#include <QFileDialog> +#include <QMenu> + +#include <LUtils.h> +#include <LuminaXDG.h> +#include "EqValidator.h" + +#include <math.h> +#define BADVALUE NAN + +#define OPS QString("+-*/x^%") + + +const double PI = (::acos(1.0)+::acos(-1.0)); + +mainUI::mainUI() : QMainWindow(), ui(new Ui::mainUI()){ + ui->setupUi(this); + advMenu = 0; + connect(ui->tool_clear, SIGNAL(clicked()), this, SLOT(clear_calc()) ); + connect(ui->line_eq, SIGNAL(returnPressed()), this, SLOT(start_calc()) ); + connect(ui->line_eq, SIGNAL(textEdited(const QString&)), this, SLOT(checkInput(const QString&)) ); + connect(ui->button_1, SIGNAL (clicked()), this, SLOT (captureButton1())); + connect(ui->button_2, SIGNAL (clicked()), this, SLOT (captureButton2())); + connect(ui->button_3, SIGNAL (clicked()), this, SLOT (captureButton3())); + connect(ui->button_4, SIGNAL (clicked()), this, SLOT (captureButton4())); + connect(ui->button_5, SIGNAL (clicked()), this, SLOT (captureButton5())); + connect(ui->button_6, SIGNAL (clicked()), this, SLOT (captureButton6())); + connect(ui->button_7, SIGNAL (clicked()), this, SLOT (captureButton7())); + connect(ui->button_8, SIGNAL (clicked()), this, SLOT (captureButton8())); + connect(ui->button_9, SIGNAL (clicked()), this, SLOT (captureButton9())); + connect(ui->button_0, SIGNAL (clicked()), this, SLOT (captureButton0())); + connect(ui->button_Subtract, SIGNAL (clicked()), this, SLOT (captureButtonSubtract())); + connect(ui->button_Add, SIGNAL (clicked()), this, SLOT (captureButtonAdd())); + connect(ui->button_Divide, SIGNAL (clicked()), this, SLOT (captureButtonDivide())); + connect(ui->button_Multiply, SIGNAL (clicked()), this, SLOT (captureButtonMultiply())); + connect(ui->button_Decimal, SIGNAL (clicked()), this, SLOT (captureButtonDecimal())); + connect(ui->button_Equal, SIGNAL (clicked()), this, SLOT (start_calc())); + connect(ui->list_results, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(insert_history(QListWidgetItem*)) ); + connect(ui->tool_history_clear, SIGNAL(clicked()), ui->list_results, SLOT(clear()) ); + connect(ui->tool_history_save, SIGNAL(clicked()), this, SLOT(saveHistory()) ); + //connect(ui->list_results, SIGNAL(itemRightClicked(QListWidgetItem*)), this, SLOT(copt_to_clipboard(QListWidgetItem*)) ); + this->setWindowTitle(tr("Calculator")); + updateIcons(); + updateMenus(); + ui->line_eq->setFocus(); + ui->line_eq->setValidator(new EqValidator(this) ); +} + +mainUI::~mainUI(){ +} + +void mainUI::updateIcons(){ + this->setWindowIcon( LXDG::findIcon("accessories-calculator","") ); + ui->tool_clear->setIcon( LXDG::findIcon("edit-clear-locationbar-rtl","dialog-cancel") ); + ui->tool_history_clear->setIcon( LXDG::findIcon("document-close","edit-clear-list") ); + ui->tool_history_save->setIcon( LXDG::findIcon("document-save-as","edit-copy") ); + ui->tool_adv->setIcon( LXDG::findIcon("formula","") ); +} + +void mainUI::updateMenus(){ + if(advMenu==0){ + advMenu = new QMenu(this); + ui->tool_adv->setMenu(advMenu); + connect(advMenu, SIGNAL(triggered(QAction*)), this, SLOT(advMenuTriggered(QAction*)) ); + } + QAction *tmp = advMenu->addAction( QString(tr("Percentage %1")).arg("\t%") ); + tmp->setWhatsThis("%"); + tmp = advMenu->addAction( QString(tr("Power %1")).arg("\t^") ); + tmp->setWhatsThis("^"); + tmp = advMenu->addAction( QString(tr("Base-10 Exponential %1")).arg("\tE") ); + tmp->setWhatsThis("E"); + tmp = advMenu->addAction( QString(tr("Exponential %1")).arg("\te") ); + tmp->setWhatsThis("e"); + tmp = advMenu->addAction( QString(tr("Constant Pi %1")).arg("\t\u03C0") ); + tmp->setWhatsThis("\u03C0"); + advMenu->addSeparator(); + tmp = advMenu->addAction( QString(tr("Square Root %1")).arg("\tsqrt(") ); + tmp->setWhatsThis("sqrt("); + tmp = advMenu->addAction( QString(tr("Logarithm %1")).arg("\tlog(") ); + tmp->setWhatsThis("log("); + tmp = advMenu->addAction( QString(tr("Natural Log %1")).arg("\tln(") ); + tmp->setWhatsThis("ln("); + advMenu->addSeparator(); + tmp = advMenu->addAction( QString(tr("Sine %1")).arg("\tsin(") ); + tmp->setWhatsThis("sin("); + tmp = advMenu->addAction( QString(tr("Cosine %1")).arg("\tcos(") ); + tmp->setWhatsThis("cos("); + tmp = advMenu->addAction( QString(tr("Tangent %1")).arg("\ttan(") ); + tmp->setWhatsThis("tan("); + advMenu->addSeparator(); + tmp = advMenu->addAction( QString(tr("Arc Sine %1")).arg("\tasin(") ); + tmp->setWhatsThis("asin("); + tmp = advMenu->addAction( QString(tr("Arc Cosine %1")).arg("\tacos(") ); + tmp->setWhatsThis("acos("); + tmp = advMenu->addAction( QString(tr("Arc Tangent %1")).arg("\tatan(") ); + tmp->setWhatsThis("atan("); + advMenu->addSeparator(); + tmp = advMenu->addAction( QString(tr("Hyperbolic Sine %1")).arg("\tsinh(") ); + tmp->setWhatsThis("sinh("); + tmp = advMenu->addAction( QString(tr("Hyperbolic Cosine %1")).arg("\tcosh(") ); + tmp->setWhatsThis("cosh("); + tmp = advMenu->addAction( QString(tr("Hyperbolic Tangent %1")).arg("\ttanh(") ); + tmp->setWhatsThis("tanh("); +} + +void mainUI::start_calc(){ + if(ui->line_eq->text().isEmpty()){ return; } //nothing to do + QString eq = ui->line_eq->text(); + eq.replace("%","/(100)"); + double result = strToNumber(eq); + if(result!=result){ return; } //bad calculation - NaN's values are special in that they don't equal itself + QString res = "[#%1] %2 \t= [ %3 ]"; + ui->list_results->addItem(res.arg(QString::number(ui->list_results->count()+1), QString::number(result, 'G'), ui->line_eq->text())); + ui->list_results->scrollToItem( ui->list_results->item( ui->list_results->count()-1) ); + ui->line_eq->clear(); +} + +void mainUI::clear_calc(){ + ui->line_eq->clear(); + ui->line_eq->setFocus(); +} + +void mainUI::captureButton1(){ ui->line_eq->insert(ui->button_1->text()); } +void mainUI::captureButton2(){ ui->line_eq->insert(ui->button_2->text()); } +void mainUI::captureButton3(){ ui->line_eq->insert(ui->button_3->text()); } +void mainUI::captureButton4(){ui->line_eq->insert(ui->button_4->text()); } +void mainUI::captureButton5(){ ui->line_eq->insert(ui->button_5->text()); } +void mainUI::captureButton6(){ ui->line_eq->insert(ui->button_6->text()); } +void mainUI::captureButton7(){ ui->line_eq->insert(ui->button_7->text()); } +void mainUI::captureButton8(){ ui->line_eq->insert(ui->button_8->text()); } +void mainUI::captureButton9(){ ui->line_eq->insert(ui->button_9->text()); } +void mainUI::captureButton0(){ ui->line_eq->insert(ui->button_0->text()); } +void mainUI::captureButtonSubtract(){ ui->line_eq->insert(ui->button_Subtract->text()); } +void mainUI::captureButtonAdd(){ ui->line_eq->insert(ui->button_Add->text()); } +void mainUI::captureButtonDivide(){ ui->line_eq->insert(ui->button_Divide->text()); } +void mainUI::captureButtonMultiply(){ ui->line_eq->insert(ui->button_Multiply->text()); } +void mainUI::captureButtonDecimal(){ ui->line_eq->insert(ui->button_Decimal->text()); } + +void mainUI::advMenuTriggered(QAction *act){ + if(act->whatsThis().isEmpty()){ return; } + ui->line_eq->insert(act->whatsThis()); +} +void mainUI::insert_history(QListWidgetItem *it){ + QString txt = it->text().section("[",-1).section("]",0,0).simplified(); + ui->line_eq->insert("("+txt+")"); +} + +void mainUI::copy_to_clipboard(QListWidgetItem *it){ + QString txt = it->text(); + QApplication::clipboard()->setText(txt); +} + +void mainUI::checkInput(const QString &str){ + if(str.length()==1 && ui->list_results->count()>0){ + if(OPS.contains(str)){ + QString lastresult = ui->list_results->item( ui->list_results->count()-1)->text().section("]",0,0).section("[",-1).simplified(); + ui->line_eq->setText( lastresult+str); + } + } +} + +void mainUI::saveHistory(){ + QStringList history; + for(int i=0; i<ui->list_results->count(); i++){ history << ui->list_results->item(i)->text(); } + QString file = QFileDialog::getSaveFileName(this, tr("Save Calculator History"), QDir::homePath() ); + if(file.section(".",-1).isEmpty()){ file.append(".txt"); } + LUtils::writeFile(file, history, true); +} + +// ===================== +// PRIVATE FUNCTIONS +// ===================== +double mainUI::performOperation(double LHS, double RHS, QChar symbol){ + //qDebug() << "Perform Operation:" << LHS << symbol << RHS; + if(symbol== '+'){ return (LHS+RHS); } + else if(symbol== '-'){ return (LHS-RHS); } + else if(symbol== '*' || symbol=='x'){ return (LHS*RHS); } + else if(symbol== '/'){ return (LHS/RHS); } + else if(symbol== '^'){ return ::pow(LHS, RHS); } + else if(symbol=='e'){ return (LHS * ::exp(RHS) ); } + //else if(symbol== '%'){ return (LHS%RHS); } + qDebug() << "Invalid Symbol:" << symbol; + return BADVALUE; +} + +double mainUI::performSciOperation(QString func, double arg){ + //This function is for performing calculations of scientific functions "<function>(<arg>)" + //qDebug() << "Perform Sci Op:" << func << arg; + double res; + if(func=="ln"){ return ::log(arg); } + else if(func=="log"){ return ::log10(arg); } + else if(func=="sqrt"){ return ::sqrt(arg); } + else if(func=="sin"){ res = ::sin(arg); } //needs rounding check + else if(func=="cos"){ res = ::cos(arg); } //needs rounding check + else if(func=="tan"){ return ::tan(arg); } + else if(func=="asin"){ return ::asin(arg); } + else if(func=="acos"){ return ::acos(arg); } + else if(func=="atan"){ return ::atan(arg); } + else if(func=="sinh"){ return ::sinh(arg); } + else if(func=="cosh"){ return ::cosh(arg); } + else if(func=="tanh"){ return ::tanh(arg); } + else{ + qDebug() << "Unknown Scientific Function:" << func; + return BADVALUE; + } + //Special cases: + // Check for whether "PI" was input as an argument (in some form) and round off the answer as needed + // since PI is itself a rounded number + if(res < 0.000000000000001){ return 0; } + return res; +} + + +double mainUI::strToNumber(QString str){ + //qDebug() << "String To Number:" << str; + //Look for history replacements first + while(str.contains("#")){ + int index = str.indexOf("#"); + int num = -1; //history number + for(int i=index+1; i<str.length(); i++){ + if(!str[i].isNumber() || i==(str.length()-1) ){ + if(!str[i].isNumber()){ i--; } //go back to the last valid char + //qDebug() << "Replace History:" << str << index << i << str.mid(index+1, i-index); + num = str.mid(index+1, i-index).toInt(); + //qDebug() << " H number:" << num; + str.replace(index, i-index+1, getHistory(num)); + //qDebug() << " After Replace:" << str; + break; //finished with this history item + } + } + if(num<1){ return BADVALUE; } //could not perform substitution + } + //Look for perentheses first + //qDebug() << "String to Number: " << str; + if(str.indexOf("(")>=0){ + //qDebug() << "Found Parenthesis"; + int start = str.indexOf("("); + int need = 1; + int end = -1; + for(int i=start+1; i<str.length() && need>0; i++){ + if(str[i]=='('){ need++; } + else if(str[i]==')'){ need--; } + //qDebug() << "Check char:" << str[i] << need; + if(need==0){ end = i; } + } + if(end<start){ return BADVALUE; } + //qDebug() << "Replace value:" << str << start << end << str.mid(start+1,end-start-1); + double tmp = strToNumber( str.mid(start+1, end-start-1)); + if(tmp!=tmp){ return BADVALUE; } //not a number + //Now check really quick if this was an argument to a scientific operation + //qDebug() << "Got Number:" << tmp; + for(int i=start-1; i>=0; i-- ){ + //qDebug() << "Check for function:" << start << i << str[i]; + if( !str[i].isLower() || i==0 ){ + if(!str[i].isLower()){ i++; }//don't need the invalid character + if(start-i<2){ break; } //not long enough - 2+ chars for sci functions + //Got a scientific operation - run it through the routine + tmp = performSciOperation( str.mid(i, start-i), tmp); + if(tmp!=tmp){ return BADVALUE; } //got a bad value + start = i; //new start point for the replacement + break; + } + } + str.replace(start, end-start+1, QString::number( tmp, 'E', 16) ); //need as high precision as possible here - internal only, never seen + //qDebug() << "Replaced:" << str; + } + // ------------------------------------- + // NOTE: the order of operations appears reversed here due to the recursive nature of the algorithm + // the first operation *found* is actually the last one *evaluated* + // -------------------------------------- + //Now look for add/subtract + int sym = -1; + QStringList symbols; symbols << "+" << "-"; + //qDebug() << "Get operator:" << str; + for(int i=0; i<symbols.length(); i++){ + int tmp = str.indexOf(symbols[i]); + while(tmp==0 || (tmp>0 && str[tmp-1].toLower()=='e') ){ tmp = str.indexOf(symbols[i], tmp+1); } //catch scientific notation + if(sym < tmp){ + //qDebug() << " - found:" << tmp << sym; + sym = tmp; + } + } + if(sym>0){ return performOperation( strToNumber(str.left(sym)), strToNumber(str.right(str.length()-sym-1)), str[sym]); } + if(sym==0){ return BADVALUE; } + //Now look for multiply/divide/power + symbols.clear(); symbols << "x" << "*" << "/" << "^" << "e"; + for(int i=0; i<symbols.length(); i++){ + int tmp = str.indexOf(symbols[i]); + if(sym < tmp){ sym = tmp; } + } + if(sym>0){ return performOperation( strToNumber(str.left(sym)), strToNumber(str.right(str.length()-sym-1)), str[sym]); } + if(sym==0){ return BADVALUE; } + + //Could not find any operations - must be a raw number + //qDebug() << " - Found Number:" << str;// << str.toDouble(); + if(str=="\u03C0"){ return PI; } + //else if(str.endsWith("\u03C0")){ + //return performOperation( strToNumber(str.section("\u03C0",0,-2)), PI, '*'); + else if(str.contains("\u03C0")){ + qDebug() << " Has Pi:" << str.count("\u03C0"); + //Pi is mixed into the number - need to multiply it all out + double res = 1; + QStringList vals = str.split("\u03C0", QString::SkipEmptyParts); + for(int i=0; i<vals.length(); i++){ res = res * strToNumber(vals[i]); } + //Now multiply in the PI's + for(int i=0; i<str.count("\u03C0"); i++){ + res = res * PI; + } + return res; + } + return str.toDouble(); +} + +QString mainUI::getHistory(int number){ + if(number <1 || number > ui->list_results->count()){ + //use the last history item + number = ui->list_results->count(); + } + QString ans = ui->list_results->item(number-1)->text().section("=",0,0).section("]",-1).simplified(); + QString eq = ui->list_results->item(number-1)->text().section("[",-1).section("]",0,0).simplified(); + //See if the text answer is accurate enough (does not look rounded) + if(ans.length()<7){ + return ("("+ans+")"); //short enough answer that it was probably not rounded + }else{ + //need to re-calculate the last equation instead for exact result + return ("("+eq+")"); + } +} |