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/***************************************************************************
* Copyright (C) 2003-2004 by David Saxton *
* david@bluehaze.org *
* *
* 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 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef VARIANT_H
#define VARIANT_H
#include <tqobject.h>
#include <tqvariant.h>
class TQColor;
class TQString;
/**
For information:
TQVariant::type() returns an enum for the current data type
contained. e.g. returns TQVariant::Color or TQVariant::Rect
@author Daniel Clarke
@author David Saxton
*/
class Variant : public TQObject
{
Q_OBJECT
TQ_OBJECT
public:
class Type
{
public:
enum Value
{
None,
Int, // Integer
Raw, // TQByteArray
Double, // Real number
String, // Editable string
Multiline, // String that may contain linebreaks
Select, // Selection of strings
Combo, // Editable combination of strings
FileName, // Filename
Color, // Color
Bool, // Boolean
VarName, // Variable name
Port, // Port name
Pin, // Pin name
PenStyle, // Pen Style
PenCapStyle, // Pen Cap Style
SevenSegment, // Pin Map for Seven Segment Display
KeyPad // Pin Map for Keypad
};
};
Variant( Type::Value type );
virtual ~Variant();
/**
* Returns the type of Variant (see Variant::Type::Value)
*/
Variant::Type::Value type() const { return m_type; }
/**
* Sets the variant type
*/
void setType( Type::Value type );
/**
* Returns the filter used for file dialogs (if this is of type Type::FileName)
*/
TQString filter() const { return m_filter; }
void setFilter( const TQString & filter ) { m_filter = filter; }
/**
* The selection of colours to be used in the combo box - e.g.
* ColorCombo::LED.
* @see ColorCombo::ColorScheme
*/
int colorScheme() const { return m_colorScheme; }
void setColorScheme( int colorScheme ) { m_colorScheme = colorScheme; }
/**
* This function is for convenience; it sets both the toolbar and editor
* caption.
*/
void setCaption( const TQString & caption ) { setToolbarCaption(caption); setEditorCaption(caption); }
/**
* This text is displayed to the left of the entry widget in the toolbar
*/
TQString toolbarCaption() const { return m_toolbarCaption; }
void setToolbarCaption( const TQString & caption ) { m_toolbarCaption = caption; }
/**
* This text is displayed to the left of the entry widget in the item editor
*/
TQString editorCaption() const { return m_editorCaption; }
void setEditorCaption( const TQString & caption ) { m_editorCaption = caption; }
/**
* Unit of number, (e.g. V (volts) / F (farads))
*/
TQString unit() const { return m_unit; }
void setUnit( const TQString & unit ) { m_unit = unit; }
/**
* The smallest (as in negative, not absoluteness) value that the user can
* set this to.
*/
double minValue() const { return m_minValue; }
void setMinValue( double value );
/**
* The largest (as in positive, not absoluteness) value that the user can
* set this to.
*/
double maxValue() const { return m_maxValue; }
void setMaxValue( double value );
/**
* The smallest absolute value that the user can set this to, before the
* value is considered zero.
*/
double minAbsValue() const { return m_minAbsValue; }
void setMinAbsValue( double val );
TQVariant defaultValue() const { return m_defaultValue; }
void setDefaultValue( TQVariant val );
/**
* If this data is marked as advanced, it will only display in the item
* editor (and not in the toolbar)
*/
void setAdvanced( bool advanced ) { m_bAdvanced = advanced; }
bool isAdvanced() const { return m_bAdvanced; }
/**
* If this data is marked as hidden, it will not be editable from anywhere
* in the user interface
*/
void setHidden( bool hidden ) { m_bHidden = hidden; }
bool isHidden() const { return m_bHidden; }
/**
* Returns the best possible attempt at representing the data in a string
* for display. Used by the properties list view.
*/
TQString displayString() const;
/**
* The list of values that the data is allowed to take (if it is string)
*/
TQStringList allowed() const { return m_allowed; }
void setAllowed(TQStringList stringList);
void appendAllowed(TQString string);
TQVariant value() const { return m_value; }
void setValue( const TQVariant& val );
void resetToDefault();
signals:
/**
* Emitted when the value changes.
* NOTE: The order of data given is the new value, and then the old value
* This is done so that slots that don't care about the old value don't
* have to accept it
*/
void valueChanged( TQVariant newValue, TQVariant oldValue );
private:
TQVariant m_value; // the actual data
TQVariant m_defaultValue;
TQString m_unit;
double m_minAbsValue;
double m_minValue;
double m_maxValue;
TQString m_toolbarCaption; // Short description shown in e.g. properties dialog
TQString m_editorCaption; // Text displayed before the data entry widget in the toolbar
bool m_bAdvanced; // If advanced, only display data in item editor
bool m_bHidden; // If hidden, do not allow user to change data
TQString m_filter; // If type() == Type::FileName this is the filter used in file dialogs.
bool m_bSetDefault; // If false, then the default will be set to the first thing this variant is set to
Type::Value m_type;
TQStringList m_allowed;
int m_colorScheme;
};
#endif
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