246 lines
7.9 KiB
C
246 lines
7.9 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/univ/slider.h
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// Purpose: wxSlider control for wxUniversal
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 09.02.01
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// RCS-ID: $Id$
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// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma interface "univslider.h"
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#endif
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#ifndef _WX_UNIV_SLIDER_H_
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#define _WX_UNIV_SLIDER_H_
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#include "wx/univ/scrthumb.h"
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// ----------------------------------------------------------------------------
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// the actions supported by this control
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// ----------------------------------------------------------------------------
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// our actions are the same as scrollbars
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#define wxACTION_SLIDER_START _T("start") // to the beginning
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#define wxACTION_SLIDER_END _T("end") // to the end
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#define wxACTION_SLIDER_LINE_UP _T("lineup") // one line up/left
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#define wxACTION_SLIDER_PAGE_UP _T("pageup") // one page up/left
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#define wxACTION_SLIDER_LINE_DOWN _T("linedown") // one line down/right
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#define wxACTION_SLIDER_PAGE_DOWN _T("pagedown") // one page down/right
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#define wxACTION_SLIDER_PAGE_CHANGE _T("pagechange")// change page by numArg
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#define wxACTION_SLIDER_THUMB_DRAG _T("thumbdrag")
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#define wxACTION_SLIDER_THUMB_MOVE _T("thumbmove")
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#define wxACTION_SLIDER_THUMB_RELEASE _T("thumbrelease")
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// ----------------------------------------------------------------------------
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// wxSlider
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxSlider : public wxSliderBase,
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public wxControlWithThumb
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{
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public:
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// ctors and such
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wxSlider();
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wxSlider(wxWindow *parent,
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wxWindowID id,
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int value, int minValue, int maxValue,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxSL_HORIZONTAL,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxSliderNameStr);
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bool Create(wxWindow *parent,
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wxWindowID id,
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int value, int minValue, int maxValue,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxSL_HORIZONTAL,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxSliderNameStr);
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// implement base class pure virtuals
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virtual int GetValue() const;
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virtual void SetValue(int value);
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virtual void SetRange(int minValue, int maxValue);
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virtual int GetMin() const;
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virtual int GetMax() const;
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virtual void SetLineSize(int lineSize);
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virtual void SetPageSize(int pageSize);
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virtual int GetLineSize() const;
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virtual int GetPageSize() const;
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virtual void SetThumbLength(int lenPixels);
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virtual int GetThumbLength() const;
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virtual void SetTickFreq(int n, int WXUNUSED(dummy) = 0);
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virtual int GetTickFreq() const { return m_tickFreq; }
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// wxUniv-specific methods
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// -----------------------
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// is this a vertical slider?
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bool IsVert() const { return (GetWindowStyle() & wxSL_VERTICAL) != 0; }
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// get the slider orientation
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wxOrientation GetOrientation() const
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{ return IsVert() ? wxVERTICAL : wxHORIZONTAL; }
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// do we have labels?
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bool HasLabels() const { return (GetWindowStyle() & wxSL_LABELS) != 0; }
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// do we have ticks?
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bool HasTicks() const { return (GetWindowStyle() & wxSL_TICKS) != 0; }
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// implement wxControlWithThumb interface
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virtual wxWindow *GetWindow() { return this; }
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virtual bool IsVertical() const { return IsVert(); }
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virtual wxScrollThumb::Shaft HitTest(const wxPoint& pt) const;
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virtual wxCoord ThumbPosToPixel() const;
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virtual int PixelToThumbPos(wxCoord x) const;
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virtual void SetShaftPartState(wxScrollThumb::Shaft shaftPart,
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int flag,
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bool set = TRUE);
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virtual void OnThumbDragStart(int pos);
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virtual void OnThumbDrag(int pos);
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virtual void OnThumbDragEnd(int pos);
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virtual void OnPageScrollStart();
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virtual bool OnPageScroll(int pageInc);
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// for wxStdSliderButtonInputHandler
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wxScrollThumb& GetThumb() { return m_thumb; }
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protected:
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enum
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{
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INVALID_THUMB_VALUE = -0xffff
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};
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// overridden base class virtuals
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virtual wxSize DoGetBestClientSize() const;
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virtual void DoDraw(wxControlRenderer *renderer);
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virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
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virtual bool PerformAction(const wxControlAction& action,
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long numArg = 0,
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const wxString& strArg = wxEmptyString);
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// event handlers
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void OnSize(wxSizeEvent& event);
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// common part of all ctors
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void Init();
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// normalize the value to fit in the range
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int NormalizeValue(int value) const;
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// change the value by the given increment, return TRUE if really changed
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bool ChangeValueBy(int inc);
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// change the value to the given one
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bool ChangeValueTo(int value);
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// is the value inside the range?
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bool IsInRange(int value) { return (value >= m_min) && (value <= m_max); }
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// format the value for printing as label
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virtual wxString FormatValue(int value) const;
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// calculate max label size
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wxSize CalcLabelSize() const;
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// calculate m_rectLabel/Slider
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void CalcGeometry();
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// get the thumb size
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wxSize GetThumbSize() const;
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// get the shaft rect (uses m_rectSlider which is supposed to be calculated)
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wxRect GetShaftRect() const;
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// calc the current thumb position using the shaft rect (if the pointer is
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// NULL, we calculate it here too)
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void CalcThumbRect(const wxRect *rectShaft,
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wxRect *rectThumbOut,
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wxRect *rectLabelOut,
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int value = INVALID_THUMB_VALUE) const;
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// return the slider rect calculating it if needed
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const wxRect& GetSliderRect() const;
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// refresh the current thumb position
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void RefreshThumb();
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private:
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// get the default thumb size (without using m_thumbSize)
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wxSize GetDefaultThumbSize() const;
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// the object which manages our thumb
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wxScrollThumb m_thumb;
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// the slider range and value
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int m_min,
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m_max,
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m_value;
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// the tick frequence (default is 1)
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int m_tickFreq;
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// the line and page increments (logical units)
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int m_lineSize,
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m_pageSize;
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// the size of the thumb (in pixels)
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int m_thumbSize;
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// the part of the client area reserved for the label, the ticks and the
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// part for the slider itself
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wxRect m_rectLabel,
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m_rectTicks,
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m_rectSlider;
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// the state of the thumb (wxCONTROL_XXX constants sum)
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int m_thumbFlags;
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DECLARE_EVENT_TABLE()
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DECLARE_DYNAMIC_CLASS(wxSlider)
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};
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// ----------------------------------------------------------------------------
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// wxStdSliderButtonInputHandler: default slider input handling
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxStdSliderButtonInputHandler : public wxStdInputHandler
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{
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public:
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// default ctor
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wxStdSliderButtonInputHandler(wxInputHandler *inphand)
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: wxStdInputHandler(inphand)
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{
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}
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// base class methods
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virtual bool HandleKey(wxControl *control,
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const wxKeyEvent& event,
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bool pressed);
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virtual bool HandleMouse(wxControl *control,
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const wxMouseEvent& event);
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virtual bool HandleMouseMove(wxControl *control,
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const wxMouseEvent& event);
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virtual bool HandleFocus(wxControl *control, const wxFocusEvent& event);
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};
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#endif // _WX_UNIV_SLIDER_H_
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