/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #pragma once #include #include #include #include #include #include #include class SvNumberFormatter; namespace validation { // the states of our automat. enum State { START, // at the very start of the string NUM_START, // the very start of the number DIGIT_PRE_COMMA, // some pre-comma digits are read, perhaps including some thousand separators DIGIT_POST_COMMA, // reading digits after the comma EXPONENT_START, // at the very start of the exponent value // (means: not including the "e" which denotes the exponent) EXPONENT_DIGIT, // currently reading the digits of the exponent END // reached the end of the string }; // a row in the transition table (means the set of states to be reached from a given state) typedef ::std::map< sal_Unicode, State > StateTransitions; // a single transition typedef StateTransitions::value_type Transition; // the complete transition table typedef ::std::map< State, StateTransitions > TransitionTable; // the validator class class NumberValidator { private: TransitionTable m_aTransitions; public: NumberValidator( const sal_Unicode _cThSep, const sal_Unicode _cDecSep ); bool isValidNumericFragment( std::u16string_view _rText ); private: bool implValidateNormalized( const OUString& _rText ); }; } enum class FORMAT_CHANGE_TYPE { KEYONLY = 0x00, // only a new key was set FORMATTER = 0x01, // a new formatter was set, usually implies a change of the key, too PRECISION = 0x02, // a new precision was set THOUSANDSSEP = 0x03, // the thousands separator setting changed CURRENCY_SYMBOL = 0x10, CURRSYM_POSITION = 0x20, }; class VCL_DLLPUBLIC Formatter { private: // A SvNumberFormatter is very expensive (regarding time and space), it is a Singleton class StaticFormatter { static SvNumberFormatter* s_cFormatter; static sal_uLong s_nReferences; public: StaticFormatter(); ~StaticFormatter(); operator SvNumberFormatter* () { return GetFormatter(); } UNLESS_MERGELIBS(VCL_DLLPUBLIC) static SvNumberFormatter* GetFormatter(); }; protected: OUString m_sLastValidText; // Has nothing to do with the current value. It is the last text, which was valid at input (checked by CheckText, // not yet through formatter) Selection m_aLastSelection; double m_dMinValue; double m_dMaxValue; bool m_bHasMin : 1; bool m_bHasMax : 1; bool m_bWrapOnLimits : 1; bool m_bStrictFormat : 1; bool m_bEnableEmptyField : 1; bool m_bAutoColor : 1; bool m_bEnableNaN : 1; bool m_bDisableRemainderFactor : 1; enum valueState { valueDirty, valueString, valueDouble }; valueState m_ValueState; double m_dCurrentValue; double m_dDefaultValue; sal_uLong m_nFormatKey; SvNumberFormatter* m_pFormatter; StaticFormatter m_aStaticFormatter; double m_dSpinSize; double m_dSpinFirst; double m_dSpinLast; // There is a difference, when text formatting is enabled, if LostFocus formats the current String and displays it, // or if a double is created from the String and then bool m_bTreatAsNumber; // And with the following members we can use it for formatted text output as well ... OUString m_sCurrentTextValue; OUString m_sDefaultText; // The last color from the Formatter at the last output operation (not we would use it, but you can get it) const Color* m_pLastOutputColor; bool m_bUseInputStringForFormatting; Link m_aInputHdl; Link m_aOutputHdl; public: Formatter(); virtual ~Formatter(); void SetFieldText(const OUString& rText, const Selection& rNewSelection); virtual Selection GetEntrySelection() const = 0; virtual OUString GetEntryText() const = 0; virtual SelectionOptions GetEntrySelectionOptions() const = 0; virtual void SetEntryText(const OUString& rText, const Selection& rSel) = 0; virtual void SetEntryTextColor(const Color* pColor) = 0; virtual void FieldModified() = 0; // Min-/Max-management bool HasMinValue() const { return m_bHasMin; } virtual void ClearMinValue() { m_bHasMin = false; } virtual void SetMinValue(double dMin); double GetMinValue() const { return m_dMinValue; } bool HasMaxValue() const { return m_bHasMax; } virtual void ClearMaxValue() { m_bHasMax = false; } virtual void SetMaxValue(double dMax); double GetMaxValue() const { return m_dMaxValue; } // Current value void SetValue(double dVal); double GetValue(); // The default implementation uses a formatter, if available void SetTextValue(const OUString& rText); // The String is transformed to a double (with a formatter) and SetValue is called afterwards bool IsEmptyFieldEnabled() const { return m_bEnableEmptyField; } void EnableEmptyField(bool bEnable); // If disabled, the value will be reset to the last valid value on leave void SetDefaultValue(double dDefault) { m_dDefaultValue = dDefault; m_ValueState = valueDirty; } // If the current String is invalid, GetValue() returns this value double GetDefaultValue() const { return m_dDefaultValue; } void SetLastSelection(const Selection& rSelection) { m_aLastSelection = rSelection; } // Settings for the format sal_uLong GetFormatKey() const { return m_nFormatKey; } void SetFormatKey(sal_uLong nFormatKey); SvNumberFormatter* GetOrCreateFormatter() const { return m_pFormatter ? m_pFormatter : const_cast(this)->CreateFormatter(); } SvNumberFormatter* GetFormatter() const { return m_pFormatter; } void SetFormatter(SvNumberFormatter* pFormatter, bool bResetFormat = true); // If bResetFormat is sal_False, the old format is tried to be kept. (expensive, if it is no default format, available in all formatters) // If sal_True, the new FormatKey is set to zero bool GetThousandsSep() const; void SetThousandsSep(bool _bUseSeparator); // the is no check if the current format is numeric, so be cautious when calling these functions void DisableRemainderFactor(); bool GetDisableRemainderFactor() const { return m_bDisableRemainderFactor; } void SetWrapOnLimits(bool bWrapOnLimits) { m_bWrapOnLimits = bWrapOnLimits; } sal_uInt16 GetDecimalDigits() const; void SetDecimalDigits(sal_uInt16 _nPrecision); // There is no check if the current format is numeric, so be cautious when calling these functions SvNumberFormatter* StandardFormatter() { return m_aStaticFormatter; } // If no new Formatter is created explicitly, this can be used in SetFormatter... OUString GetFormat(LanguageType& eLang) const; bool SetFormat(const OUString& rFormatString, LanguageType eLang); // sal_False, if the FormatString could not be set (and very probably is invalid) // This Object is shared via all instances, so be careful! bool IsStrictFormat() const { return m_bStrictFormat; } void SetStrictFormat(bool bEnable) { m_bStrictFormat = bEnable; } // Check format during input virtual void SetSpinSize(double dStep) { m_dSpinSize = dStep; } double GetSpinSize() const { return m_dSpinSize; } void SetSpinFirst(double dFirst) { m_dSpinFirst = dFirst; } double GetSpinFirst() const { return m_dSpinFirst; } void SetSpinLast(double dLast) { m_dSpinLast = dLast; } double GetSpinLast() const { return m_dSpinLast; } bool TreatingAsNumber() const { return m_bTreatAsNumber; } void TreatAsNumber(bool bDoSo) { m_bTreatAsNumber = bDoSo; } void SetInputHdl(const Link& rLink) { m_aInputHdl = rLink; } void SetOutputHdl(const Link& rLink) { m_aOutputHdl = rLink; } public: //The following methods are interesting, if m_bTreatAsNumber is set to sal_False //If someone does not care about all the double handling and just wants to print the text formatted. //(((The text will be formatted, using the Formatter, and then set) void SetTextFormatted(const OUString& rText); OUString const & GetTextValue() const; void SetDefaultText(const OUString& rDefault) { m_sDefaultText = rDefault; } const OUString& GetDefaultText() const { return m_sDefaultText; } // The last colour from the Formatter's last output operation. Output operations get triggered by: // SetValue, SetTextValue, SetTextFormatted, also indirectly via SetMin - / -MaxValue const Color* GetLastOutputColor() const { return m_pLastOutputColor; } /** reformats the current text. Interesting if the user entered some text in an "input format", and this should be formatted in the "output format" (which may differ, e.g. by additional numeric digits or such). */ void Commit(); // enable automatic coloring. if set to sal_True, and the format the field is working with for any current value // says that it has to be painted in a special color (e.g. a format where negative numbers should be printed // red), the text is painted with that color automatically. // The color used is the same as returned by GetLastOutputColor() void SetAutoColor(bool _bAutomatic); /** enables handling of not-a-number value. When this is set to (the default), then invalid inputs (i.e. text which cannot be interpreted, according to the current formatting) will be handled as if the default value has been entered. GetValue the will return this default value. When set to , then GetValue will return NaN (not a number, see isNan) when the current input is invalid. Note that setting this to implies that upon leaving the control, the input will *not* be corrected to a valid value. For example, if the user enters "foo" in the control, and then tabs out of it, the text "foo" will persist, and GetValue will return NaN in subsequent calls. */ void EnableNotANumber( bool _bEnable ); /** When being set to true, the strings in the field are formatted using the InputLine format. That's also what you get in Calc when you edit a cell using F2 */ void UseInputStringForFormatting(); bool IsUsingInputStringForFormatting() const { return m_bUseInputStringForFormatting;} void Modify(bool makeValueDirty = true); void EntryLostFocus(); void ReFormat(); // any aspect of the current format has changed virtual void FormatChanged(FORMAT_CHANGE_TYPE nWhat); protected: // Override CheckText for input-time checks virtual bool CheckText(const OUString&) const { return true; } void ImplSetTextImpl(const OUString& rNew, Selection const * pNewSel); void ImplSetValue(double dValue, bool bForce); bool ImplGetValue(double& dNewVal); void ImplSetFormatKey(sal_uLong nFormatKey); // SetFormatKey without FormatChanged notification SvNumberFormatter* CreateFormatter() { SetFormatter(StandardFormatter()); return m_pFormatter; } virtual void UpdateCurrentValue(double dCurrentValue) { m_dCurrentValue = dCurrentValue; } }; /* vim:set shiftwidth=4 softtabstop=4 expandtab: */