Resolves #581. User can now filter input lists by keyword in function wizard.

--HG--
branch : feature

.hgignore

@@ -159,3 +159,6 @@ $RECYCLE.BIN/
 
 # Windows shortcuts
 *.lnk
+
+# Understand IDE file
+*.udb

ChangeLog.txt

@@ -1,4 +1,5 @@
 # Version 0.5.0
+- [#581] User can now filter input lists by keyword in function wizard.
 - [#24] User can now add labels with different information on the detail
 - [#505] New installer script based on Inno Setup 5.
 - Size of preferences dialog in both Valentina and Tape app is now preserved between sessions

src/libs/vtools/dialogs/support/dialogeditwrongformula.cpp

@@ -95,6 +95,19 @@ DialogEditWrongFormula::DialogEditWrongFormula(const VContainer *data, const qui
     connect(ui->plainTextEditFormula, &QPlainTextEdit::textChanged, this, &DialogEditWrongFormula::FormulaChanged);
     connect(ui->pushButtonGrowLength, &QPushButton::clicked, this, &DialogEditWrongFormula::DeployFormulaTextEdit);
 
+    // clear text filter every time when new radio button selected
+    auto clearFilterFormulaInputs = [=] () { ui->filterFormulaInputs->clear(); };
+
+    connect(ui->radioButtonStandardTable, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonIncrements, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonLengthLine, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonLengthSpline, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonAngleLine, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonRadiusesArcs, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonAnglesCurves, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonCLength, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+    connect(ui->radioButtonFunctions, &QRadioButton::clicked, this, clearFilterFormulaInputs);
+
     //Disable Qt::WaitCursor
 #ifndef QT_NO_CURSOR
     if (QApplication::overrideCursor() != nullptr)
@@ -529,3 +542,18 @@ void DialogEditWrongFormula::ShowFunctions()
     ui->tableWidget->selectRow(0);
     ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
 }
+
+void DialogEditWrongFormula::on_filterFormulaInputs_textEdited(const QString &filter)
+{
+    ui->tableWidget->blockSignals(true);
+
+    // hide all rows
+    for (auto i = 0; i < ui->tableWidget->rowCount(); i++)
+        ui->tableWidget->hideRow(i);
+
+    // show rows with matched filter
+    for (auto item : ui->tableWidget->findItems(filter, Qt::MatchContains))
+        ui->tableWidget->showRow(item->row());
+
+    ui->tableWidget->blockSignals(false);
+}

src/libs/vtools/dialogs/support/dialogeditwrongformula.h

@@ -96,6 +96,8 @@ protected:
     virtual void CheckState() Q_DECL_OVERRIDE;
     virtual void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
     virtual void showEvent( QShowEvent *event ) Q_DECL_OVERRIDE;
+private slots:
+    void on_filterFormulaInputs_textEdited(const QString &filter);
 private:
     Q_DISABLE_COPY(DialogEditWrongFormula)
     Ui::DialogEditWrongFormula *ui;

src/libs/vtools/dialogs/support/dialogeditwrongformula.ui

@@ -355,6 +355,13 @@
      </item>
      <item>
       <layout class="QVBoxLayout" name="verticalLayout">
+       <item>
+        <widget class="QLineEdit" name="filterFormulaInputs">
+         <property name="placeholderText">
+          <string>Filter list by keyword</string>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QCheckBox" name="checkBoxHideEmpty">
          <property name="text">