| 1 | /************************************************************************
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| 2 | filename: CEGUISpinner.h
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| 3 | created: 3/2/2005
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| 4 | author: Paul D Turner
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| 5 | *************************************************************************/
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| 6 | /*************************************************************************
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| 7 | Crazy Eddie's GUI System (http://www.cegui.org.uk)
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| 8 | Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
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| 9 |
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| 10 | This library is free software; you can redistribute it and/or
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| 11 | modify it under the terms of the GNU Lesser General Public
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| 12 | License as published by the Free Software Foundation; either
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| 13 | version 2.1 of the License, or (at your option) any later version.
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| 14 |
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| 15 | This library is distributed in the hope that it will be useful,
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 18 | Lesser General Public License for more details.
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| 19 |
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| 20 | You should have received a copy of the GNU Lesser General Public
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| 21 | License along with this library; if not, write to the Free Software
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| 22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 23 | *************************************************************************/
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| 24 | #ifndef _CEGUISpinner_h_
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| 25 | #define _CEGUISpinner_h_
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| 26 |
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| 27 | #include "CEGUIBase.h"
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| 28 | #include "CEGUIWindow.h"
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| 29 | #include "elements/CEGUISpinnerProperties.h"
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| 30 |
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| 31 | #if defined(_MSC_VER)
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| 32 | # pragma warning(push)
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| 33 | # pragma warning(disable : 4251)
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| 34 | #endif
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| 35 |
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| 36 |
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| 37 | // Start of CEGUI namespace section
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| 38 | namespace CEGUI
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| 39 | {
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| 40 | /*!
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| 41 | \brief
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| 42 | Base class for the Spinner widget.
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| 43 |
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| 44 | The spinner widget has a text area where numbers may be entered
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| 45 | and two buttons which may be used to increase or decrease the
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| 46 | value in the text area by a user specified amount.
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| 47 | */
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| 48 | class CEGUIEXPORT Spinner : public Window
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| 49 | {
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| 50 | public:
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| 51 | /*!
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| 52 | \brief
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| 53 | Enumerated type specifying possible input and/or display modes for the spinner.
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| 54 | */
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| 55 | enum TextInputMode
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| 56 | {
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| 57 | FloatingPoint, //!< Floating point decimal.
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| 58 | Integer, //!< Integer decimal.
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| 59 | Hexadecimal, //!< Hexadecimal.
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| 60 | Octal //!< Octal
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| 61 | };
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| 62 |
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| 63 | /*************************************************************************
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| 64 | Events system constants
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| 65 | *************************************************************************/
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| 66 | static const String EventNamespace; //!< Namespace for global events
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| 67 | static const String EventValueChanged; //!< Event fired when the spinner value changes.
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| 68 | static const String EventStepChanged; //!< Event fired when the step value changes.
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| 69 | static const String EventMaximumValueChanged; //!< Event fired when the maximum spinner value changes.
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| 70 | static const String EventMinimumValueChanged; //!< Event fired when the minimum spinner value changes.
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| 71 | static const String EventTextInputModeChanged; //!< Event fired when the input/display mode is changed.
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| 72 |
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| 73 | /*************************************************************************
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| 74 | Object Construction and Destruction
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| 75 | *************************************************************************/
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| 76 | /*!
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| 77 | \brief
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| 78 | Constructor for Spinner objects
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| 79 | */
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| 80 | Spinner(const String& type, const String& name);
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| 81 |
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| 82 | /*!
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| 83 | \brief
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| 84 | Destructor for Spinner objects
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| 85 | */
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| 86 | virtual ~Spinner(void);
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| 87 |
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| 88 | /*!
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| 89 | \brief
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| 90 | Initialises the Window based object ready for use.
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| 91 |
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| 92 | \note
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| 93 | This must be called for every window created. Normally this is handled automatically by the WindowFactory for each Window type.
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| 94 |
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| 95 | \return
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| 96 | Nothing
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| 97 | */
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| 98 | void initialise(void);
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| 99 |
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| 100 |
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| 101 | /*************************************************************************
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| 102 | Accessors
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| 103 | *************************************************************************/
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| 104 | /*!
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| 105 | \brief
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| 106 | Return the current spinner value.
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| 107 |
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| 108 | \return
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| 109 | current float value of the Spinner.
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| 110 | */
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| 111 | float getCurrentValue(void) const;
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| 112 |
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| 113 | /*!
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| 114 | \brief
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| 115 | Return the current step value.
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| 116 |
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| 117 | \return
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| 118 | float step value. This is the value added to the spinner vaue when the
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| 119 | up / down buttons are clicked.
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| 120 | */
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| 121 | float getStepSize(void) const;
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| 122 |
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| 123 | /*!
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| 124 | \brief
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| 125 | Return the current maximum limit value for the Spinner.
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| 126 |
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| 127 | \return
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| 128 | Maximum value that is allowed for the spinner.
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| 129 | */
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| 130 | float getMaximumValue(void) const;
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| 131 |
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| 132 | /*!
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| 133 | \brief
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| 134 | Return the current minimum limit value for the Spinner.
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| 135 |
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| 136 | \return
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| 137 | Minimum value that is allowed for the spinner.
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| 138 | */
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| 139 | float getMinimumValue(void) const;
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| 140 |
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| 141 | /*!
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| 142 | \brief
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| 143 | Return the current text input / display mode setting.
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| 144 |
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| 145 | \return
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| 146 | One of the TextInputMode enumerated values indicating the current
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| 147 | text input and display mode.
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| 148 | */
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| 149 | TextInputMode getTextInputMode(void) const;
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| 150 |
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| 151 | /*************************************************************************
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| 152 | Manipulators
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| 153 | *************************************************************************/
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| 154 | /*!
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| 155 | \brief
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| 156 | Set the current spinner value.
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| 157 |
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| 158 | \param value
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| 159 | value to be assigned to the Spinner.
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| 160 |
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| 161 | \return
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| 162 | Nothing.
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| 163 | */
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| 164 | void setCurrentValue(float value);
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| 165 |
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| 166 | /*!
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| 167 | \brief
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| 168 | Set the current step value.
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| 169 |
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| 170 | \param step
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| 171 | The value added to be the spinner value when the
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| 172 | up / down buttons are clicked.
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| 173 |
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| 174 | \return
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| 175 | Nothing.
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| 176 | */
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| 177 | void setStepSize(float step);
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| 178 |
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| 179 | /*!
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| 180 | \brief
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| 181 | Set the spinner maximum value.
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| 182 |
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| 183 | \param maxValue
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| 184 | The maximum value to be allowed by the spinner.
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| 185 |
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| 186 | \return
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| 187 | Nothing.
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| 188 | */
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| 189 | void setMaximumValue(float maxValue);
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| 190 |
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| 191 | /*!
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| 192 | \brief
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| 193 | Set the spinner minimum value.
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| 194 |
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| 195 | \param minVaue
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| 196 | The minimum value to be allowed by the spinner.
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| 197 |
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| 198 | \return
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| 199 | Nothing.
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| 200 | */
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| 201 | void setMinimumValue(float minVaue);
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| 202 |
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| 203 | /*!
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| 204 | \brief
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| 205 | Set the spinner input / display mode.
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| 206 |
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| 207 | \param mode
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| 208 | One of the TextInputMode enumerated values indicating the text
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| 209 | input / display mode to be used by the spinner.
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| 210 |
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| 211 | \return
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| 212 | Nothing.
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| 213 | */
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| 214 | void setTextInputMode(TextInputMode mode);
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| 215 |
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| 216 | protected:
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| 217 | /*************************************************************************
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| 218 | Constants
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| 219 | *************************************************************************/
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| 220 | static const String FloatValidator; //!< Validator regex used for floating point mode.
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| 221 | static const String IntegerValidator; //!< Validator regex used for decimal integer mode.
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| 222 | static const String HexValidator; //!< Validator regex used for hexadecimal mode.
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| 223 | static const String OctalValidator; //!< Validator regex used for octal mode.
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| 224 |
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| 225 | /*************************************************************************
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| 226 | Protected Implementation Methods
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| 227 | *************************************************************************/
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| 228 | /*!
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| 229 | \brief
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| 230 | Adds events specific to the Spinner base class.
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| 231 |
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| 232 | \return
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| 233 | Nothing.
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| 234 | */
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| 235 | void addSpinnerEvents(void);
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| 236 |
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| 237 | /*!
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| 238 | \brief
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| 239 | Returns the numerical representation of the current editbox text.
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| 240 |
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| 241 | \return
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| 242 | float value that is the numerical equivalent of the editbox text.
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| 243 |
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| 244 | \exception InvalidRequestException thrown if the text can not be converted.
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| 245 | */
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| 246 | virtual float getValueFromText(void) const;
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| 247 |
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| 248 | /*!
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| 249 | \brief
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| 250 | Returns the textual representation of the current spinner value.
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| 251 |
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| 252 | \return
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| 253 | String object that is equivalent to the the numerical value of the spinner.
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| 254 | */
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| 255 | virtual String getTextFromValue(void) const;
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| 256 |
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| 257 |
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| 258 | /*!
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| 259 | \brief
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| 260 | Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.
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| 261 |
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| 262 | \param class_name
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| 263 | The class name that is to be checked.
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| 264 |
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| 265 | \return
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| 266 | true if this window was inherited from \a class_name. false if not.
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| 267 | */
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| 268 | virtual bool testClassName_impl(const String& class_name) const
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| 269 | {
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| 270 | if (class_name==(const utf8*)"Spinner") return true;
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| 271 | return Window::testClassName_impl(class_name);
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| 272 | }
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| 273 |
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| 274 |
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| 275 | /*************************************************************************
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| 276 | Abstract Implementation methods
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| 277 | *************************************************************************/
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| 278 | /*!
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| 279 | \brief
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| 280 | Creates a PushButton based widget that will be used for the increase
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| 281 | button component of the Spinner widget.
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| 282 |
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| 283 | \return
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| 284 | Pointer to a valid PushButton based object.
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| 285 | */
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| 286 | virtual PushButton* createIncreaseButton(void) const = 0;
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| 287 |
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| 288 | /*!
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| 289 | \brief
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| 290 | Creates a PushButton based widget that will be used for the decrease
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| 291 | button component of the Spinner widget.
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| 292 |
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| 293 | \return
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| 294 | Pointer to a valid PushButton based object.
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| 295 | */
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| 296 | virtual PushButton* createDecreaseButton(void) const = 0;
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| 297 |
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| 298 | /*!
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| 299 | \brief
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| 300 | Creates an Editbox based widget that will be used for the text input
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| 301 | area of the spinner widget.
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| 302 |
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| 303 | \return
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| 304 | Pointer to a valid Editbox based object.
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| 305 | */
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| 306 | virtual Editbox* createEditbox(void) const = 0;
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| 307 |
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| 308 | /*!
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| 309 | \brief
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| 310 | Performs required layout of the component widgets that make up the
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| 311 | Spinner widget.
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| 312 |
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| 313 | \return
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| 314 | Nothing.
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| 315 | */
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| 316 | virtual void layoutComponentWidgets(void) = 0;
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| 317 |
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| 318 |
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| 319 | /*************************************************************************
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| 320 | Overrides for Event handler methods
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| 321 | *************************************************************************/
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| 322 | virtual void onSized(WindowEventArgs& e);
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| 323 | virtual void onFontChanged(WindowEventArgs& e);
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| 324 | virtual void onTextChanged(WindowEventArgs& e);
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| 325 | virtual void onActivated(ActivationEventArgs& e);
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| 326 |
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| 327 | /*************************************************************************
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| 328 | New Event handler methods
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| 329 | *************************************************************************/
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| 330 | /*!
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| 331 | \brief
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| 332 | Method called when the spinner value changes.
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| 333 |
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| 334 | \param e
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| 335 | WindowEventArgs object containing any relevant data.
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| 336 |
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| 337 | \return
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| 338 | Nothing.
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| 339 | */
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| 340 | virtual void onValueChanged(WindowEventArgs& e);
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| 341 |
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| 342 | /*!
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| 343 | \brief
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| 344 | Method called when the step value changes.
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| 345 |
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| 346 | \param e
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| 347 | WindowEventArgs object containing any relevant data.
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| 348 |
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| 349 | \return
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| 350 | Nothing.
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| 351 | */
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| 352 | virtual void onStepChanged(WindowEventArgs& e);
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| 353 |
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| 354 | /*!
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| 355 | \brief
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| 356 | Method called when the maximum value setting changes.
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| 357 |
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| 358 | \param e
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| 359 | WindowEventArgs object containing any relevant data.
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| 360 |
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| 361 | \return
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| 362 | Nothing.
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| 363 | */
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| 364 | virtual void onMaximumValueChanged(WindowEventArgs& e);
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| 365 |
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| 366 | /*!
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| 367 | \brief
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| 368 | Method called when the minimum value setting changes.
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| 369 |
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| 370 | \param e
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| 371 | WindowEventArgs object containing any relevant data.
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| 372 |
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| 373 | \return
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| 374 | Nothing.
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| 375 | */
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| 376 | virtual void onMinimumValueChanged(WindowEventArgs& e);
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| 377 |
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| 378 | /*!
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| 379 | \brief
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| 380 | Method called when the text input/display mode is changed.
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| 381 |
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| 382 | \param e
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| 383 | WindowEventArgs object containing any relevant data.
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| 384 |
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| 385 | \return
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| 386 | Nothing.
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| 387 | */
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| 388 | virtual void onTextInputModeChanged(WindowEventArgs& e);
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| 389 |
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| 390 | /*************************************************************************
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| 391 | Internal event listener methods
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| 392 | *************************************************************************/
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| 393 | bool handleIncreaseButton(const EventArgs& e);
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| 394 | bool handleDecreaseButton(const EventArgs& e);
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| 395 | bool handleEditTextChange(const EventArgs& e);
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| 396 |
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| 397 |
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| 398 | /*************************************************************************
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| 399 | Data Fields
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| 400 | *************************************************************************/
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| 401 | PushButton* d_increaseButton; //!< Pointer to the increase button widget.
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| 402 | PushButton* d_decreaseButton; //!< Pointer to the decrease button widget.
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| 403 | Editbox* d_editbox; //!< Pointer to the editbox widget.
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| 404 |
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| 405 | float d_stepSize; //!< Step size value used y the increase & decrease buttons.
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| 406 | float d_currentValue; //!< Numerical copy of the text in d_editbox.
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| 407 | float d_maxValue; //!< Maximum value for spinner.
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| 408 | float d_minValue; //!< Minimum value for spinner.
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| 409 | TextInputMode d_inputMode; //!< Current text display/input mode.
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| 410 |
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| 411 | private:
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| 412 | /*************************************************************************
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| 413 | Static properties for the Spinner widget
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| 414 | *************************************************************************/
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| 415 | static SpinnerProperties::CurrentValue d_currentValueProperty;
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| 416 | static SpinnerProperties::StepSize d_stepSizeProperty;
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| 417 | static SpinnerProperties::MaximumValue d_maxValueProperty;
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| 418 | static SpinnerProperties::MinimumValue d_minValueProperty;
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| 419 | static SpinnerProperties::TextInputMode d_textInputModeProperty;
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| 420 |
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| 421 | /*************************************************************************
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| 422 | Private Implementation Methods
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| 423 | *************************************************************************/
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| 424 | /*!
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| 425 | \brief
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| 426 | Adds properties supported by the Spinner class.
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| 427 |
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| 428 | \return
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| 429 | Nothing.
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| 430 | */
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| 431 | void addSpinnerProperties(void);
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| 432 | };
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| 433 |
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| 434 | } // End of CEGUI namespace section
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| 435 |
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| 436 |
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| 437 | #endif // end of guard _CEGUISpinner_h_
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