src/msw/slidrmsw.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        slidermsw.cpp
// Purpose:     wxSliderMSW
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:       wxWindows license
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "slidrmsw.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include <stdio.h>
#endif

#include "wx/utils.h"
#include "wx/brush.h"
#include "wx/msw/slidrmsw.h"
#include "wx/msw/private.h"

IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)

// Slider
wxSliderMSW::wxSliderMSW()
{
  m_staticValue = 0;
  m_staticMin = 0;
  m_staticMax = 0;
  m_pageSize = 1;
  m_lineSize = 1;
  m_rangeMax = 0;
  m_rangeMin = 0;
  m_tickFreq = 0;
}

bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
           int value, int minValue, int maxValue,
           const wxPoint& pos,
           const wxSize& size, long style,
           const wxValidator& validator,
           const wxString& name)
{
  SetName(name);
#if wxUSE_VALIDATORS
  SetValidator(validator);
#endif // wxUSE_VALIDATORS

  if (parent) parent->AddChild(this);
  SetBackgroundColour(parent->GetBackgroundColour()) ;
  SetForegroundColour(parent->GetForegroundColour()) ;

  m_staticValue = 0;
  m_staticMin = 0;
  m_staticMax = 0;
  m_pageSize = 1;
  m_lineSize = 1;
  m_windowStyle = style;
  m_tickFreq = 0;

  if ( id == -1 )
      m_windowId = (int)NewControlId();
  else
    m_windowId = id;

  int x = pos.x;
  int y = pos.y;
  int width = size.x;
  int height = size.y;

  // non-Win95 implementation

  long msStyle = WS_CHILD | WS_VISIBLE | WS_BORDER | SS_CENTER;

  bool want3D;
  WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;

  m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL,
                           msStyle,
                           0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                           wxGetInstance(), NULL);

  // Now create min static control
  wxSprintf(wxBuffer, wxT("%d"), minValue);
  m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
                         STATIC_FLAGS,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                         wxGetInstance(), NULL);

  msStyle = 0;
  if (m_windowStyle & wxSL_VERTICAL)
    msStyle = SBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
  else
    msStyle = SBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;

  HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("SCROLLBAR"), wxBuffer,
                         msStyle,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
                         wxGetInstance(), NULL);

  m_pageSize = (int)((maxValue-minValue)/10);
  m_rangeMax = maxValue;
  m_rangeMin = minValue;

  ::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
  ::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
  ShowWindow(scroll_bar, SW_SHOW);

  m_hWnd = (WXHWND)scroll_bar;

  // Subclass again for purposes of dialog editing mode
  SubclassWin(GetHWND());

  // Finally, create max value static item
  wxSprintf(wxBuffer, wxT("%d"), maxValue);
  m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
                         STATIC_FLAGS,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                         wxGetInstance(), NULL);

  SetFont(parent->GetFont());

  if (GetFont().Ok())
  {
//    GetFont()->RealizeResource();
    if (GetFont().GetResourceHandle())
    {
        if ( m_staticMin )
              SendMessage((HWND)m_staticMin,WM_SETFONT,
                      (WPARAM)GetFont().GetResourceHandle(),0L);
        if ( m_staticMax )
              SendMessage((HWND)m_staticMax,WM_SETFONT,
                  (WPARAM)GetFont().GetResourceHandle(),0L);
          if (m_staticValue)
            SendMessage((HWND)m_staticValue,WM_SETFONT,
                    (WPARAM)GetFont().GetResourceHandle(),0L);
    }
  }

  SetSize(x, y, width, height);
  SetValue(value);

  return TRUE;
}

bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
                              WXWORD pos, WXHWND control)
{
    int position = ::GetScrollPos((HWND)control, SB_CTL);

    int nScrollInc;
    wxEventType scrollEvent = wxEVT_NULL;
    switch ( wParam )
    {
        case SB_TOP:
            nScrollInc = m_rangeMax - position;
            scrollEvent = wxEVT_SCROLL_TOP;
            break;

        case SB_BOTTOM:
            nScrollInc = - position;
            scrollEvent = wxEVT_SCROLL_BOTTOM;
            break;

        case SB_LINEUP:
            nScrollInc = - GetLineSize();
            scrollEvent = wxEVT_SCROLL_LINEUP;
            break;

        case SB_LINEDOWN:
            nScrollInc = GetLineSize();
            scrollEvent = wxEVT_SCROLL_LINEDOWN;
            break;

        case SB_PAGEUP:
            nScrollInc = -GetPageSize();
            scrollEvent = wxEVT_SCROLL_PAGEUP;
            break;

        case SB_PAGEDOWN:
            nScrollInc = GetPageSize();
            scrollEvent = wxEVT_SCROLL_PAGEDOWN;
            break;

        case SB_THUMBTRACK:
        case SB_THUMBPOSITION:
#ifdef __WIN32__
            nScrollInc = (signed short)pos - position;
#else
            nScrollInc = pos - position;
#endif
            scrollEvent = wxEVT_SCROLL_THUMBTRACK;
            break;

        default:
            nScrollInc = 0;
    }

    if (nScrollInc == 0)
    {
        // no event...
        return FALSE;
    }

    int newPos = position + nScrollInc;

    if ( (newPos < GetMin()) || (newPos > GetMax()) )
    {
        // out of range - but we did process it
        return TRUE;
    }

    SetValue(newPos);

    wxScrollEvent event(scrollEvent, m_windowId);
    event.SetPosition(newPos);
    event.SetEventObject( this );
    GetEventHandler()->ProcessEvent(event);

    wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
    cevent.SetInt( newPos );
    cevent.SetEventObject( this );

    return GetEventHandler()->ProcessEvent( cevent );
}

wxSliderMSW::~wxSliderMSW()
{
    if (m_staticMin)
      DestroyWindow((HWND) m_staticMin);
    if (m_staticMax)
      DestroyWindow((HWND) m_staticMax);
    if (m_staticValue)
      DestroyWindow((HWND) m_staticValue);
}

int wxSliderMSW::GetValue() const
{
  return ::GetScrollPos(GetHwnd(), SB_CTL);
}

void wxSliderMSW::SetValue(int value)
{
  ::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
  if (m_staticValue)
  {
    wxSprintf(wxBuffer, wxT("%d"), value);
    SetWindowText((HWND) m_staticValue, wxBuffer);
  }
}

void wxSliderMSW::GetSize(int *width, int *height) const
{
  RECT rect;
  rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;

  wxFindMaxSize(GetHWND(), &rect);

  if (m_staticMin)
    wxFindMaxSize(m_staticMin, &rect);
  if (m_staticMax)
    wxFindMaxSize(m_staticMax, &rect);
  if (m_staticValue)
    wxFindMaxSize(m_staticValue, &rect);

  *width = rect.right - rect.left;
  *height = rect.bottom - rect.top;
}

void wxSliderMSW::GetPosition(int *x, int *y) const
{
  wxWindow *parent = GetParent();
  RECT rect;
  rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;

  wxFindMaxSize(GetHWND(), &rect);

  if (m_staticMin)
    wxFindMaxSize(m_staticMin, &rect);
  if (m_staticMax)
    wxFindMaxSize(m_staticMax, &rect);
  if (m_staticValue)
    wxFindMaxSize(m_staticValue, &rect);

  // Since we now have the absolute screen coords,
  // if there's a parent we must subtract its top left corner
  POINT point;
  point.x = rect.left;
  point.y = rect.top;
  if (parent)
    ::ScreenToClient((HWND) parent->GetHWND(), &point);

  // We may be faking the client origin.
  // So a window that's really at (0, 30) may appear
  // (to wxWin apps) to be at (0, 0).
  if (GetParent())
  {
    wxPoint pt(GetParent()->GetClientAreaOrigin());
    point.x -= pt.x;
    point.y -= pt.y;
  }
  *x = point.x;
  *y = point.y;
}

// TODO one day, make sense of all this horros and replace it with a readable
//      DoGetBestSize()
void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
  int x1 = x;
  int y1 = y;
  int w1 = width;
  int h1 = height;

  int currentX, currentY;
  GetPosition(&currentX, &currentY);
  if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
    x1 = currentX;
  if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
    y1 = currentY;

  AdjustForParentClientOrigin(x1, y1, sizeFlags);

  wxChar buf[300];

  int x_offset = x;
  int y_offset = y;

  int cx;     // slider,min,max sizes
  int cy;
  int cyf;

  wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());

  if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
  {
    if ( m_windowStyle & wxSL_LABELS )
    {
    int min_len = 0;

    GetWindowText((HWND) m_staticMin, buf, 300);
    GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());

    int max_len = 0;

    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
    if (m_staticValue)
    {
      int new_width = (int)(wxMax(min_len, max_len));
      int valueHeight = (int)cyf;
#ifdef __WIN32__
      // For some reason, under Win95, the text edit control has
      // a lot of space before the first character
      new_width += 3*cx;
#endif
      MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
      x_offset += new_width + cx;
    }

    MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
    x_offset += (int)(min_len + cx);

    int slider_length = (int)(w1 - x_offset - max_len - cx);

    int slider_height = cy;

    // Slider must have a minimum/default length/height
    if (slider_length < 100)
      slider_length = 100;

    MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
    x_offset += slider_length + cx;

    MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
    }
    else
    {
        // No labels
        if ( w1 < 0 )
            w1 = 200;
        if ( h1 < 0 )
            h1 = 20;
        MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
    }
  }
  else
  {
    if ( m_windowStyle & wxSL_LABELS )
    {
    int min_len;
    GetWindowText((HWND) m_staticMin, buf, 300);
    GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());

    int max_len;
    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());

    if (m_staticValue)
    {
      int new_width = (int)(wxMax(min_len, max_len));
      int valueHeight = (int)cyf;
/*** Suggested change by George Tasker - remove this block...
#ifdef __WIN32__
      // For some reason, under Win95, the text edit control has
      // a lot of space before the first character
      new_width += 3*cx;
#endif
 ... and replace with following line: */
      new_width += cx;

      MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
      y_offset += valueHeight;
    }

    MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
    y_offset += cy;

    int slider_length = (int)(h1 - y_offset - cy - cy);

    // Use character height as an estimate of slider width (yes, width)
    int slider_width = cy;

    // Slider must have a minimum/default length
    if (slider_length < 100)
      slider_length = 100;

    MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
    y_offset += slider_length;

    MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
    }
    else
    {
        // No labels
        if ( w1 < 0 )
            w1 = 20;
        if ( h1 < 0 )
            h1 = 200;
        MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
    }
  }
}

void wxSliderMSW::SetRange(int minValue, int maxValue)
{
  m_rangeMin = minValue;
  m_rangeMax = maxValue;

  ::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
  wxChar buf[40];
  if ( m_staticMin )
  {
      wxSprintf(buf, wxT("%d"), m_rangeMin);
      SetWindowText((HWND) m_staticMin, buf);
  }

  if ( m_staticMax )
  {
    wxSprintf(buf, wxT("%d"), m_rangeMax);
    SetWindowText((HWND) m_staticMax, buf);
  }
}

WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
            WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
{
  if ( nCtlColor == CTLCOLOR_SCROLLBAR )
    return 0;

  // Otherwise, it's a static
  return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
}

// For trackbars only
void wxSliderMSW::SetTickFreq(int n, int pos)
{
}

void wxSliderMSW::SetPageSize(int pageSize)
{
  m_pageSize = pageSize;
}

int wxSliderMSW::GetPageSize() const
{
  return m_pageSize;
}

void wxSliderMSW::ClearSel()
{
}

void wxSliderMSW::ClearTicks()
{
}

void wxSliderMSW::SetLineSize(int lineSize)
{
  m_lineSize = lineSize;
}

int wxSliderMSW::GetLineSize() const
{
  return m_lineSize;
}

int wxSliderMSW::GetSelEnd() const
{
  return 0;
}

int wxSliderMSW::GetSelStart() const
{
  return 0;
}

void wxSliderMSW::SetSelection(int minPos, int maxPos)
{
}

void wxSliderMSW::SetThumbLength(int len)
{
}

int wxSliderMSW::GetThumbLength() const
{
  return 0;
}

void wxSliderMSW::SetTick(int tickPos)
{
}

bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
{
    return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
}

void wxSliderMSW::Command (wxCommandEvent & event)
{
  SetValue (event.GetInt());
  ProcessCommand (event);
}

bool wxSliderMSW::Show(bool show)
{
    wxWindow::Show(show);

    int cshow;
    if (show)
        cshow = SW_SHOW;
    else
        cshow = SW_HIDE;

    if(m_staticValue)
        ShowWindow((HWND) m_staticValue, (BOOL)cshow);
    if(m_staticMin)
        ShowWindow((HWND) m_staticMin, (BOOL)cshow);
    if(m_staticMax)
        ShowWindow((HWND) m_staticMax, (BOOL)cshow);
    return TRUE;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: slidermsw.cpp
	3	// Purpose: wxSliderMSW
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 04/01/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "slidrmsw.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WX_PRECOMP
	24	#include <stdio.h>
	25	#endif
	26
	27	#include "wx/utils.h"
	28	#include "wx/brush.h"
	29	#include "wx/msw/slidrmsw.h"
	30	#include "wx/msw/private.h"
	31
	32	IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)
	33
	34	// Slider
	35	wxSliderMSW::wxSliderMSW()
	36	{
	37	m_staticValue = 0;
	38	m_staticMin = 0;
	39	m_staticMax = 0;
	40	m_pageSize = 1;
	41	m_lineSize = 1;
	42	m_rangeMax = 0;
	43	m_rangeMin = 0;
	44	m_tickFreq = 0;
	45	}
	46
	47	bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
	48	int value, int minValue, int maxValue,
	49	const wxPoint& pos,
	50	const wxSize& size, long style,
	51	const wxValidator& validator,
	52	const wxString& name)
	53	{
	54	SetName(name);
	55	#if wxUSE_VALIDATORS
	56	SetValidator(validator);
	57	#endif // wxUSE_VALIDATORS
	58
	59	if (parent) parent->AddChild(this);
	60	SetBackgroundColour(parent->GetBackgroundColour()) ;
	61	SetForegroundColour(parent->GetForegroundColour()) ;
	62
	63	m_staticValue = 0;
	64	m_staticMin = 0;
	65	m_staticMax = 0;
	66	m_pageSize = 1;
	67	m_lineSize = 1;
	68	m_windowStyle = style;
	69	m_tickFreq = 0;
	70
	71	if ( id == -1 )
	72	m_windowId = (int)NewControlId();
	73	else
	74	m_windowId = id;
	75
	76	int x = pos.x;
	77	int y = pos.y;
	78	int width = size.x;
	79	int height = size.y;
	80
	81	// non-Win95 implementation
	82
	83	long msStyle = WS_CHILD \| WS_VISIBLE \| WS_BORDER \| SS_CENTER;
	84
	85	bool want3D;
	86	WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
	87
	88	m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL,
	89	msStyle,
	90	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	91	wxGetInstance(), NULL);
	92
	93	// Now create min static control
	94	wxSprintf(wxBuffer, wxT("%d"), minValue);
	95	m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
	96	STATIC_FLAGS,
	97	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	98	wxGetInstance(), NULL);
	99
	100	msStyle = 0;
	101	if (m_windowStyle & wxSL_VERTICAL)
	102	msStyle = SBS_VERT \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	103	else
	104	msStyle = SBS_HORZ \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	105
	106	HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("SCROLLBAR"), wxBuffer,
	107	msStyle,
	108	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
	109	wxGetInstance(), NULL);
	110
	111	m_pageSize = (int)((maxValue-minValue)/10);
	112	m_rangeMax = maxValue;
	113	m_rangeMin = minValue;
	114
	115	::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
	116	::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
	117	ShowWindow(scroll_bar, SW_SHOW);
	118
	119	m_hWnd = (WXHWND)scroll_bar;
	120
	121	// Subclass again for purposes of dialog editing mode
	122	SubclassWin(GetHWND());
	123
	124	// Finally, create max value static item
	125	wxSprintf(wxBuffer, wxT("%d"), maxValue);
	126	m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
	127	STATIC_FLAGS,
	128	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	129	wxGetInstance(), NULL);
	130
	131	SetFont(parent->GetFont());
	132
	133	if (GetFont().Ok())
	134	{
	135	// GetFont()->RealizeResource();
	136	if (GetFont().GetResourceHandle())
	137	{
	138	if ( m_staticMin )
	139	SendMessage((HWND)m_staticMin,WM_SETFONT,
	140	(WPARAM)GetFont().GetResourceHandle(),0L);
	141	if ( m_staticMax )
	142	SendMessage((HWND)m_staticMax,WM_SETFONT,
	143	(WPARAM)GetFont().GetResourceHandle(),0L);
	144	if (m_staticValue)
	145	SendMessage((HWND)m_staticValue,WM_SETFONT,
	146	(WPARAM)GetFont().GetResourceHandle(),0L);
	147	}
	148	}
	149
	150	SetSize(x, y, width, height);
	151	SetValue(value);
	152
	153	return TRUE;
	154	}
	155
	156	bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
	157	WXWORD pos, WXHWND control)
	158	{
	159	int position = ::GetScrollPos((HWND)control, SB_CTL);
	160
	161	int nScrollInc;
	162	wxEventType scrollEvent = wxEVT_NULL;
	163	switch ( wParam )
	164	{
	165	case SB_TOP:
	166	nScrollInc = m_rangeMax - position;
	167	scrollEvent = wxEVT_SCROLL_TOP;
	168	break;
	169
	170	case SB_BOTTOM:
	171	nScrollInc = - position;
	172	scrollEvent = wxEVT_SCROLL_BOTTOM;
	173	break;
	174
	175	case SB_LINEUP:
	176	nScrollInc = - GetLineSize();
	177	scrollEvent = wxEVT_SCROLL_LINEUP;
	178	break;
	179
	180	case SB_LINEDOWN:
	181	nScrollInc = GetLineSize();
	182	scrollEvent = wxEVT_SCROLL_LINEDOWN;
	183	break;
	184
	185	case SB_PAGEUP:
	186	nScrollInc = -GetPageSize();
	187	scrollEvent = wxEVT_SCROLL_PAGEUP;
	188	break;
	189
	190	case SB_PAGEDOWN:
	191	nScrollInc = GetPageSize();
	192	scrollEvent = wxEVT_SCROLL_PAGEDOWN;
	193	break;
	194
	195	case SB_THUMBTRACK:
	196	case SB_THUMBPOSITION:
	197	#ifdef __WIN32__
	198	nScrollInc = (signed short)pos - position;
	199	#else
	200	nScrollInc = pos - position;
	201	#endif
	202	scrollEvent = wxEVT_SCROLL_THUMBTRACK;
	203	break;
	204
	205	default:
	206	nScrollInc = 0;
	207	}
	208
	209	if (nScrollInc == 0)
	210	{
	211	// no event...
	212	return FALSE;
	213	}
	214
	215	int newPos = position + nScrollInc;
	216
	217	if ( (newPos < GetMin()) \|\| (newPos > GetMax()) )
	218	{
	219	// out of range - but we did process it
	220	return TRUE;
	221	}
	222
	223	SetValue(newPos);
	224
	225	wxScrollEvent event(scrollEvent, m_windowId);
	226	event.SetPosition(newPos);
	227	event.SetEventObject( this );
	228	GetEventHandler()->ProcessEvent(event);
	229
	230	wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
	231	cevent.SetInt( newPos );
	232	cevent.SetEventObject( this );
	233
	234	return GetEventHandler()->ProcessEvent( cevent );
	235	}
	236
	237	wxSliderMSW::~wxSliderMSW()
	238	{
	239	if (m_staticMin)
	240	DestroyWindow((HWND) m_staticMin);
	241	if (m_staticMax)
	242	DestroyWindow((HWND) m_staticMax);
	243	if (m_staticValue)
	244	DestroyWindow((HWND) m_staticValue);
	245	}
	246
	247	int wxSliderMSW::GetValue() const
	248	{
	249	return ::GetScrollPos(GetHwnd(), SB_CTL);
	250	}
	251
	252	void wxSliderMSW::SetValue(int value)
	253	{
	254	::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
	255	if (m_staticValue)
	256	{
	257	wxSprintf(wxBuffer, wxT("%d"), value);
	258	SetWindowText((HWND) m_staticValue, wxBuffer);
	259	}
	260	}
	261
	262	void wxSliderMSW::GetSize(int width, int height) const
	263	{
	264	RECT rect;
	265	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	266
	267	wxFindMaxSize(GetHWND(), &rect);
	268
	269	if (m_staticMin)
	270	wxFindMaxSize(m_staticMin, &rect);
	271	if (m_staticMax)
	272	wxFindMaxSize(m_staticMax, &rect);
	273	if (m_staticValue)
	274	wxFindMaxSize(m_staticValue, &rect);
	275
	276	*width = rect.right - rect.left;
	277	*height = rect.bottom - rect.top;
	278	}
	279
	280	void wxSliderMSW::GetPosition(int x, int y) const
	281	{
	282	wxWindow *parent = GetParent();
	283	RECT rect;
	284	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	285
	286	wxFindMaxSize(GetHWND(), &rect);
	287
	288	if (m_staticMin)
	289	wxFindMaxSize(m_staticMin, &rect);
	290	if (m_staticMax)
	291	wxFindMaxSize(m_staticMax, &rect);
	292	if (m_staticValue)
	293	wxFindMaxSize(m_staticValue, &rect);
	294
	295	// Since we now have the absolute screen coords,
	296	// if there's a parent we must subtract its top left corner
	297	POINT point;
	298	point.x = rect.left;
	299	point.y = rect.top;
	300	if (parent)
	301	::ScreenToClient((HWND) parent->GetHWND(), &point);
	302
	303	// We may be faking the client origin.
	304	// So a window that's really at (0, 30) may appear
	305	// (to wxWin apps) to be at (0, 0).
	306	if (GetParent())
	307	{
	308	wxPoint pt(GetParent()->GetClientAreaOrigin());
	309	point.x -= pt.x;
	310	point.y -= pt.y;
	311	}
	312	*x = point.x;
	313	*y = point.y;
	314	}
	315
	316	// TODO one day, make sense of all this horros and replace it with a readable
	317	// DoGetBestSize()
	318	void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	319	{
	320	int x1 = x;
	321	int y1 = y;
	322	int w1 = width;
	323	int h1 = height;
	324
	325	int currentX, currentY;
	326	GetPosition(&currentX, &currentY);
	327	if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	328	x1 = currentX;
	329	if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	330	y1 = currentY;
	331
	332	AdjustForParentClientOrigin(x1, y1, sizeFlags);
	333
	334	wxChar buf[300];
	335
	336	int x_offset = x;
	337	int y_offset = y;
	338
	339	int cx; // slider,min,max sizes
	340	int cy;
	341	int cyf;
	342
	343	wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());
	344
	345	if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
	346	{
	347	if ( m_windowStyle & wxSL_LABELS )
	348	{
	349	int min_len = 0;
	350
	351	GetWindowText((HWND) m_staticMin, buf, 300);
	352	GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
	353
	354	int max_len = 0;
	355
	356	GetWindowText((HWND) m_staticMax, buf, 300);
	357	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	358	if (m_staticValue)
	359	{
	360	int new_width = (int)(wxMax(min_len, max_len));
	361	int valueHeight = (int)cyf;
	362	#ifdef __WIN32__
	363	// For some reason, under Win95, the text edit control has
	364	// a lot of space before the first character
	365	new_width += 3*cx;
	366	#endif
	367	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	368	x_offset += new_width + cx;
	369	}
	370
	371	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	372	x_offset += (int)(min_len + cx);
	373
	374	int slider_length = (int)(w1 - x_offset - max_len - cx);
	375
	376	int slider_height = cy;
	377
	378	// Slider must have a minimum/default length/height
	379	if (slider_length < 100)
	380	slider_length = 100;
	381
	382	MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
	383	x_offset += slider_length + cx;
	384
	385	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	386	}
	387	else
	388	{
	389	// No labels
	390	if ( w1 < 0 )
	391	w1 = 200;
	392	if ( h1 < 0 )
	393	h1 = 20;
	394	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	395	}
	396	}
	397	else
	398	{
	399	if ( m_windowStyle & wxSL_LABELS )
	400	{
	401	int min_len;
	402	GetWindowText((HWND) m_staticMin, buf, 300);
	403	GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());
	404
	405	int max_len;
	406	GetWindowText((HWND) m_staticMax, buf, 300);
	407	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	408
	409	if (m_staticValue)
	410	{
	411	int new_width = (int)(wxMax(min_len, max_len));
	412	int valueHeight = (int)cyf;
	413	/*** Suggested change by George Tasker - remove this block...
	414	#ifdef __WIN32__
	415	// For some reason, under Win95, the text edit control has
	416	// a lot of space before the first character
	417	new_width += 3*cx;
	418	#endif
	419	... and replace with following line: */
	420	new_width += cx;
	421
	422	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	423	y_offset += valueHeight;
	424	}
	425
	426	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	427	y_offset += cy;
	428
	429	int slider_length = (int)(h1 - y_offset - cy - cy);
	430
	431	// Use character height as an estimate of slider width (yes, width)
	432	int slider_width = cy;
	433
	434	// Slider must have a minimum/default length
	435	if (slider_length < 100)
	436	slider_length = 100;
	437
	438	MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
	439	y_offset += slider_length;
	440
	441	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	442	}
	443	else
	444	{
	445	// No labels
	446	if ( w1 < 0 )
	447	w1 = 20;
	448	if ( h1 < 0 )
	449	h1 = 200;
	450	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	451	}
	452	}
	453	}
	454
	455	void wxSliderMSW::SetRange(int minValue, int maxValue)
	456	{
	457	m_rangeMin = minValue;
	458	m_rangeMax = maxValue;
	459
	460	::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	461	wxChar buf[40];
	462	if ( m_staticMin )
	463	{
	464	wxSprintf(buf, wxT("%d"), m_rangeMin);
	465	SetWindowText((HWND) m_staticMin, buf);
	466	}
	467
	468	if ( m_staticMax )
	469	{
	470	wxSprintf(buf, wxT("%d"), m_rangeMax);
	471	SetWindowText((HWND) m_staticMax, buf);
	472	}
	473	}
	474
	475	WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
	476	WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
	477	{
	478	if ( nCtlColor == CTLCOLOR_SCROLLBAR )
	479	return 0;
	480
	481	// Otherwise, it's a static
	482	return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
	483	}
	484
	485	// For trackbars only
	486	void wxSliderMSW::SetTickFreq(int n, int pos)
	487	{
	488	}
	489
	490	void wxSliderMSW::SetPageSize(int pageSize)
	491	{
	492	m_pageSize = pageSize;
	493	}
	494
	495	int wxSliderMSW::GetPageSize() const
	496	{
	497	return m_pageSize;
	498	}
	499
	500	void wxSliderMSW::ClearSel()
	501	{
	502	}
	503
	504	void wxSliderMSW::ClearTicks()
	505	{
	506	}
	507
	508	void wxSliderMSW::SetLineSize(int lineSize)
	509	{
	510	m_lineSize = lineSize;
	511	}
	512
	513	int wxSliderMSW::GetLineSize() const
	514	{
	515	return m_lineSize;
	516	}
	517
	518	int wxSliderMSW::GetSelEnd() const
	519	{
	520	return 0;
	521	}
	522
	523	int wxSliderMSW::GetSelStart() const
	524	{
	525	return 0;
	526	}
	527
	528	void wxSliderMSW::SetSelection(int minPos, int maxPos)
	529	{
	530	}
	531
	532	void wxSliderMSW::SetThumbLength(int len)
	533	{
	534	}
	535
	536	int wxSliderMSW::GetThumbLength() const
	537	{
	538	return 0;
	539	}
	540
	541	void wxSliderMSW::SetTick(int tickPos)
	542	{
	543	}
	544
	545	bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
	546	{
	547	return ( hWnd == GetStaticMin() \|\| hWnd == GetStaticMax() \|\| hWnd == GetEditValue() );
	548	}
	549
	550	void wxSliderMSW::Command (wxCommandEvent & event)
	551	{
	552	SetValue (event.GetInt());
	553	ProcessCommand (event);
	554	}
	555
	556	bool wxSliderMSW::Show(bool show)
	557	{
	558	wxWindow::Show(show);
	559
	560	int cshow;
	561	if (show)
	562	cshow = SW_SHOW;
	563	else
	564	cshow = SW_HIDE;
	565
	566	if(m_staticValue)
	567	ShowWindow((HWND) m_staticValue, (BOOL)cshow);
	568	if(m_staticMin)
	569	ShowWindow((HWND) m_staticMin, (BOOL)cshow);
	570	if(m_staticMax)
	571	ShowWindow((HWND) m_staticMax, (BOOL)cshow);
	572	return TRUE;
	573	}
	574
	575