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- /************************************************************************
- filename: CEGUIThumb.h
- created: 25/4/2004
- author: Paul D Turner
-
- purpose: Interface for a 'Thumb' widget. Intended to be used as
- part of other widgets such as scrollers and sliders.
- *************************************************************************/
- /*************************************************************************
- Crazy Eddie's GUI System (http://www.cegui.org.uk)
- Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *************************************************************************/
- #ifndef _CEGUIThumb_h_
- #define _CEGUIThumb_h_
-
- #include "CEGUIPushButton.h"
- #include "elements/CEGUIThumbProperties.h"
- #include <utility>
-
-
- #if defined(_MSC_VER)
- # pragma warning(push)
- # pragma warning(disable : 4251)
- #endif
-
-
- // Start of CEGUI namespace section
- namespace CEGUI
- {
-
- /*!
- \brief
- Base class for Thumb widget.
-
- The thumb widget is used to compose other widgets (like sliders and scroll bars). You would
- not normally need to use this widget directly unless you are making a new widget of some type.
- */
- class CEGUIEXPORT Thumb : public PushButton
- {
- public:
- static const String EventNamespace; //!< Namespace for global events
-
-
- /*************************************************************************
- Event name constants
- *************************************************************************/
- // generated internally by Window
- static const String EventThumbPositionChanged; //!< The position of the thumb widget has changed.
- static const String EventThumbTrackStarted; //!< Name of the event fired when the user begins dragging the thumb.
- static const String EventThumbTrackEnded; //!< Name of the event fired when the user releases the thumb.
-
-
- /*************************************************************************
- Accessor Functions
- *************************************************************************/
- /*!
- \brief
- return whether hot-tracking is enabled or not.
-
- \return
- true if hot-tracking is enabled. false if hot-tracking is disabled.
- */
- bool isHotTracked(void) const {return d_hotTrack;}
-
- /*!
- \brief
- return whether the thumb is movable on the vertical axis.
-
- \return
- true if the thumb is movable along the vertical axis.
- false if the thumb is fixed on the vertical axis.
- */
- bool isVertFree(void) const {return d_vertFree;}
-
- /*!
- \brief
- return whether the thumb is movable on the horizontal axis.
-
- \return
- true if the thumb is movable along the horizontal axis.
- false if the thumb is fixed on the horizontal axis.
- */
- bool isHorzFree(void) const {return d_horzFree;}
-
-
- /*!
- \brief
- Return a std::pair that describes the current range set for the vertical movement.
-
- \return
- a std::pair describing the current vertical range. The first element is the minimum value,
- the second element is the maximum value.
- */
- std::pair<float, float> getVertRange(void) const;
-
-
- /*!
- \brief
- Return a std::pair that describes the current range set for the horizontal movement.
-
- \return
- a std::pair describing the current horizontal range. The first element is the minimum value,
- the second element is the maximum value.
- */
- std::pair<float, float> getHorzRange(void) const;
-
-
- /*************************************************************************
- Manipulator Functions
- *************************************************************************/
- /*!
- \brief
- set whether the thumb uses hot-tracking.
-
- \param setting
- true to enable hot-tracking. false to disable hot-tracking.
-
- \return
- Nothing.
- */
- void setHotTracked(bool setting) {d_hotTrack = setting;}
-
-
- /*!
- \brief
- set whether thumb is movable on the vertical axis.
-
- \param setting
- true to allow movement of thumb along the vertical axis. false to fix thumb on the vertical axis.
-
- \return
- nothing.
- */
- void setVertFree(bool setting) {d_vertFree = setting;}
-
-
- /*!
- \brief
- set whether thumb is movable on the horizontal axis.
-
- \param setting
- true to allow movement of thumb along the horizontal axis. false to fix thumb on the horizontal axis.
-
- \return
- nothing.
- */
- void setHorzFree(bool setting) {d_horzFree = setting;}
-
-
- /*!
- \brief
- set the movement range of the thumb for the vertical axis.
-
- The values specified here are relative to the parent window for the thumb, and are specified in whichever
- metrics mode is active for the widget.
-
- \param min
- the minimum setting for the thumb on the vertical axis.
-
- \param max
- the maximum setting for the thumb on the vertical axis.
-
- \return
- Nothing.
- */
- void setVertRange(float min, float max);
-
-
- /*!
- \brief
- set the movement range of the thumb for the horizontal axis.
-
- The values specified here are relative to the parent window for the thumb, and are specified in whichever
- metrics mode is active for the widget.
-
- \param min
- the minimum setting for the thumb on the horizontal axis.
-
- \param max
- the maximum setting for the thumb on the horizontal axis.
-
- \return
- Nothing.
- */
- void setHorzRange(float min, float max);
-
-
- /*************************************************************************
- Construction / Destruction
- *************************************************************************/
- /*!
- \brief
- Constructor for Thumb objects
- */
- Thumb(const String& type, const String& name);
-
-
- /*!
- \brief
- Destructor for Thumb objects
- */
- virtual ~Thumb(void);
-
-
- protected:
- /*************************************************************************
- Implementation Functions
- *************************************************************************/
- /*!
- \brief
- Add thumb specific events
- */
- void addThumbEvents(void);
-
-
- /*!
- \brief
- Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.
-
- \param class_name
- The class name that is to be checked.
-
- \return
- true if this window was inherited from \a class_name. false if not.
- */
- virtual bool testClassName_impl(const String& class_name) const
- {
- if (class_name==(const utf8*)"Thumb") return true;
- return PushButton::testClassName_impl(class_name);
- }
-
-
- /*************************************************************************
- New Thumb Events
- *************************************************************************/
- /*!
- \brief
- event triggered internally when the position of the thumb
- */
- virtual void onThumbPositionChanged(WindowEventArgs& e);
-
-
- /*!
- \brief
- Handler triggered when the user begins to drag the thumb.
- */
- virtual void onThumbTrackStarted(WindowEventArgs& e);
-
-
- /*!
- \brief
- Handler triggered when the thumb is released
- */
- virtual void onThumbTrackEnded(WindowEventArgs& e);
-
-
-
- /*************************************************************************
- Overridden event handling routines
- *************************************************************************/
- virtual void onMouseMove(MouseEventArgs& e);
- virtual void onMouseButtonDown(MouseEventArgs& e);
- virtual void onCaptureLost(WindowEventArgs& e);
-
-
- /*************************************************************************
- Implementation Data
- *************************************************************************/
- // general settings
- bool d_hotTrack; //!< true if events are to be sent real-time, else just when thumb is released
- bool d_vertFree; //!< true if thumb is movable vertically
- bool d_horzFree; //!< true if thumb is movable horizontally
-
- // operational limits
- float d_vertMin, d_vertMax; //!< vertical range
- float d_horzMin, d_horzMax; //!< horizontal range
-
- // internal state
- bool d_beingDragged; //!< true if thumb is being dragged
- Point d_dragPoint; //!< point where we are being dragged at.
-
-
- private:
- /*************************************************************************
- Static Properties for this class
- *************************************************************************/
- static ThumbProperties::HotTracked d_hotTrackedProperty;
- static ThumbProperties::VertFree d_vertFreeProperty;
- static ThumbProperties::HorzFree d_horzFreeProperty;
- static ThumbProperties::VertRange d_vertRangeProperty;
- static ThumbProperties::HorzRange d_horzRangeProperty;
-
-
- /*************************************************************************
- Private methods
- *************************************************************************/
- void addThumbProperties(void);
- };
-
- } // End of CEGUI namespace section
-
- #if defined(_MSC_VER)
- # pragma warning(pop)
- #endif
-
- #endif // end of guard _CEGUIThumb_h_
-