wxWidgets/include/wx/univ/slider.h

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