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;

   if ( m_windowStyle & wxCLIP_SIBLINGS )
        msStyle |= WS_CLIPSIBLINGS;

  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);
  DWORD wstyle = STATIC_FLAGS;
  if ( m_windowStyle & wxCLIP_SIBLINGS )
        wstyle |= WS_CLIPSIBLINGS;
  m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
                         wstyle,
                         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);
  wstyle = STATIC_FLAGS;
  if ( m_windowStyle & wxCLIP_SIBLINGS )
        wstyle |= WS_CLIPSIBLINGS;
  m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
                         wstyle,
                         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	if ( m_windowStyle & wxCLIP_SIBLINGS )
	86	msStyle \|= WS_CLIPSIBLINGS;
	87
	88	bool want3D;
	89	WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
	90
	91	m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL,
	92	msStyle,
	93	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	94	wxGetInstance(), NULL);
	95
	96	// Now create min static control
	97	wxSprintf(wxBuffer, wxT("%d"), minValue);
	98	DWORD wstyle = STATIC_FLAGS;
	99	if ( m_windowStyle & wxCLIP_SIBLINGS )
	100	wstyle \|= WS_CLIPSIBLINGS;
	101	m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
	102	wstyle,
	103	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	104	wxGetInstance(), NULL);
	105
	106	msStyle = 0;
	107	if (m_windowStyle & wxSL_VERTICAL)
	108	msStyle = SBS_VERT \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	109	else
	110	msStyle = SBS_HORZ \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	111
	112	HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("SCROLLBAR"), wxBuffer,
	113	msStyle,
	114	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
	115	wxGetInstance(), NULL);
	116
	117	m_pageSize = (int)((maxValue-minValue)/10);
	118	m_rangeMax = maxValue;
	119	m_rangeMin = minValue;
	120
	121	::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
	122	::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
	123	ShowWindow(scroll_bar, SW_SHOW);
	124
	125	m_hWnd = (WXHWND)scroll_bar;
	126
	127	// Subclass again for purposes of dialog editing mode
	128	SubclassWin(GetHWND());
	129
	130	// Finally, create max value static item
	131	wxSprintf(wxBuffer, wxT("%d"), maxValue);
	132	wstyle = STATIC_FLAGS;
	133	if ( m_windowStyle & wxCLIP_SIBLINGS )
	134	wstyle \|= WS_CLIPSIBLINGS;
	135	m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
	136	wstyle,
	137	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	138	wxGetInstance(), NULL);
	139
	140	SetFont(parent->GetFont());
	141
	142	if (GetFont().Ok())
	143	{
	144	// GetFont()->RealizeResource();
	145	if (GetFont().GetResourceHandle())
	146	{
	147	if ( m_staticMin )
	148	SendMessage((HWND)m_staticMin,WM_SETFONT,
	149	(WPARAM)GetFont().GetResourceHandle(),0L);
	150	if ( m_staticMax )
	151	SendMessage((HWND)m_staticMax,WM_SETFONT,
	152	(WPARAM)GetFont().GetResourceHandle(),0L);
	153	if (m_staticValue)
	154	SendMessage((HWND)m_staticValue,WM_SETFONT,
	155	(WPARAM)GetFont().GetResourceHandle(),0L);
	156	}
	157	}
	158
	159	SetSize(x, y, width, height);
	160	SetValue(value);
	161
	162	return TRUE;
	163	}
	164
	165	bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
	166	WXWORD pos, WXHWND control)
	167	{
	168	int position = ::GetScrollPos((HWND)control, SB_CTL);
	169
	170	int nScrollInc;
	171	wxEventType scrollEvent = wxEVT_NULL;
	172	switch ( wParam )
	173	{
	174	case SB_TOP:
	175	nScrollInc = m_rangeMax - position;
	176	scrollEvent = wxEVT_SCROLL_TOP;
	177	break;
	178
	179	case SB_BOTTOM:
	180	nScrollInc = - position;
	181	scrollEvent = wxEVT_SCROLL_BOTTOM;
	182	break;
	183
	184	case SB_LINEUP:
	185	nScrollInc = - GetLineSize();
	186	scrollEvent = wxEVT_SCROLL_LINEUP;
	187	break;
	188
	189	case SB_LINEDOWN:
	190	nScrollInc = GetLineSize();
	191	scrollEvent = wxEVT_SCROLL_LINEDOWN;
	192	break;
	193
	194	case SB_PAGEUP:
	195	nScrollInc = -GetPageSize();
	196	scrollEvent = wxEVT_SCROLL_PAGEUP;
	197	break;
	198
	199	case SB_PAGEDOWN:
	200	nScrollInc = GetPageSize();
	201	scrollEvent = wxEVT_SCROLL_PAGEDOWN;
	202	break;
	203
	204	case SB_THUMBTRACK:
	205	case SB_THUMBPOSITION:
	206	#ifdef __WIN32__
	207	nScrollInc = (signed short)pos - position;
	208	#else
	209	nScrollInc = pos - position;
	210	#endif
	211	scrollEvent = wxEVT_SCROLL_THUMBTRACK;
	212	break;
	213
	214	default:
	215	nScrollInc = 0;
	216	}
	217
	218	if (nScrollInc == 0)
	219	{
	220	// no event...
	221	return FALSE;
	222	}
	223
	224	int newPos = position + nScrollInc;
	225
	226	if ( (newPos < GetMin()) \|\| (newPos > GetMax()) )
	227	{
	228	// out of range - but we did process it
	229	return TRUE;
	230	}
	231
	232	SetValue(newPos);
	233
	234	wxScrollEvent event(scrollEvent, m_windowId);
	235	event.SetPosition(newPos);
	236	event.SetEventObject( this );
	237	GetEventHandler()->ProcessEvent(event);
	238
	239	wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
	240	cevent.SetInt( newPos );
	241	cevent.SetEventObject( this );
	242
	243	return GetEventHandler()->ProcessEvent( cevent );
	244	}
	245
	246	wxSliderMSW::~wxSliderMSW()
	247	{
	248	if (m_staticMin)
	249	DestroyWindow((HWND) m_staticMin);
	250	if (m_staticMax)
	251	DestroyWindow((HWND) m_staticMax);
	252	if (m_staticValue)
	253	DestroyWindow((HWND) m_staticValue);
	254	}
	255
	256	int wxSliderMSW::GetValue() const
	257	{
	258	return ::GetScrollPos(GetHwnd(), SB_CTL);
	259	}
	260
	261	void wxSliderMSW::SetValue(int value)
	262	{
	263	::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
	264	if (m_staticValue)
	265	{
	266	wxSprintf(wxBuffer, wxT("%d"), value);
	267	SetWindowText((HWND) m_staticValue, wxBuffer);
	268	}
	269	}
	270
	271	void wxSliderMSW::GetSize(int width, int height) const
	272	{
	273	RECT rect;
	274	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	275
	276	wxFindMaxSize(GetHWND(), &rect);
	277
	278	if (m_staticMin)
	279	wxFindMaxSize(m_staticMin, &rect);
	280	if (m_staticMax)
	281	wxFindMaxSize(m_staticMax, &rect);
	282	if (m_staticValue)
	283	wxFindMaxSize(m_staticValue, &rect);
	284
	285	*width = rect.right - rect.left;
	286	*height = rect.bottom - rect.top;
	287	}
	288
	289	void wxSliderMSW::GetPosition(int x, int y) const
	290	{
	291	wxWindow *parent = GetParent();
	292	RECT rect;
	293	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	294
	295	wxFindMaxSize(GetHWND(), &rect);
	296
	297	if (m_staticMin)
	298	wxFindMaxSize(m_staticMin, &rect);
	299	if (m_staticMax)
	300	wxFindMaxSize(m_staticMax, &rect);
	301	if (m_staticValue)
	302	wxFindMaxSize(m_staticValue, &rect);
	303
	304	// Since we now have the absolute screen coords,
	305	// if there's a parent we must subtract its top left corner
	306	POINT point;
	307	point.x = rect.left;
	308	point.y = rect.top;
	309	if (parent)
	310	::ScreenToClient((HWND) parent->GetHWND(), &point);
	311
	312	// We may be faking the client origin.
	313	// So a window that's really at (0, 30) may appear
	314	// (to wxWin apps) to be at (0, 0).
	315	if (GetParent())
	316	{
	317	wxPoint pt(GetParent()->GetClientAreaOrigin());
	318	point.x -= pt.x;
	319	point.y -= pt.y;
	320	}
	321	*x = point.x;
	322	*y = point.y;
	323	}
	324
	325	// TODO one day, make sense of all this horros and replace it with a readable
	326	// DoGetBestSize()
	327	void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	328	{
	329	int x1 = x;
	330	int y1 = y;
	331	int w1 = width;
	332	int h1 = height;
	333
	334	int currentX, currentY;
	335	GetPosition(&currentX, &currentY);
	336	if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	337	x1 = currentX;
	338	if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	339	y1 = currentY;
	340
	341	AdjustForParentClientOrigin(x1, y1, sizeFlags);
	342
	343	wxChar buf[300];
	344
	345	int x_offset = x;
	346	int y_offset = y;
	347
	348	int cx; // slider,min,max sizes
	349	int cy;
	350	int cyf;
	351
	352	wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());
	353
	354	if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
	355	{
	356	if ( m_windowStyle & wxSL_LABELS )
	357	{
	358	int min_len = 0;
	359
	360	GetWindowText((HWND) m_staticMin, buf, 300);
	361	GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
	362
	363	int max_len = 0;
	364
	365	GetWindowText((HWND) m_staticMax, buf, 300);
	366	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	367	if (m_staticValue)
	368	{
	369	int new_width = (int)(wxMax(min_len, max_len));
	370	int valueHeight = (int)cyf;
	371	#ifdef __WIN32__
	372	// For some reason, under Win95, the text edit control has
	373	// a lot of space before the first character
	374	new_width += 3*cx;
	375	#endif
	376	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	377	x_offset += new_width + cx;
	378	}
	379
	380	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	381	x_offset += (int)(min_len + cx);
	382
	383	int slider_length = (int)(w1 - x_offset - max_len - cx);
	384
	385	int slider_height = cy;
	386
	387	// Slider must have a minimum/default length/height
	388	if (slider_length < 100)
	389	slider_length = 100;
	390
	391	MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
	392	x_offset += slider_length + cx;
	393
	394	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	395	}
	396	else
	397	{
	398	// No labels
	399	if ( w1 < 0 )
	400	w1 = 200;
	401	if ( h1 < 0 )
	402	h1 = 20;
	403	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	404	}
	405	}
	406	else
	407	{
	408	if ( m_windowStyle & wxSL_LABELS )
	409	{
	410	int min_len;
	411	GetWindowText((HWND) m_staticMin, buf, 300);
	412	GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());
	413
	414	int max_len;
	415	GetWindowText((HWND) m_staticMax, buf, 300);
	416	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	417
	418	if (m_staticValue)
	419	{
	420	int new_width = (int)(wxMax(min_len, max_len));
	421	int valueHeight = (int)cyf;
	422	/*** Suggested change by George Tasker - remove this block...
	423	#ifdef __WIN32__
	424	// For some reason, under Win95, the text edit control has
	425	// a lot of space before the first character
	426	new_width += 3*cx;
	427	#endif
	428	... and replace with following line: */
	429	new_width += cx;
	430
	431	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	432	y_offset += valueHeight;
	433	}
	434
	435	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	436	y_offset += cy;
	437
	438	int slider_length = (int)(h1 - y_offset - cy - cy);
	439
	440	// Use character height as an estimate of slider width (yes, width)
	441	int slider_width = cy;
	442
	443	// Slider must have a minimum/default length
	444	if (slider_length < 100)
	445	slider_length = 100;
	446
	447	MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
	448	y_offset += slider_length;
	449
	450	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	451	}
	452	else
	453	{
	454	// No labels
	455	if ( w1 < 0 )
	456	w1 = 20;
	457	if ( h1 < 0 )
	458	h1 = 200;
	459	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	460	}
	461	}
	462	}
	463
	464	void wxSliderMSW::SetRange(int minValue, int maxValue)
	465	{
	466	m_rangeMin = minValue;
	467	m_rangeMax = maxValue;
	468
	469	::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	470	wxChar buf[40];
	471	if ( m_staticMin )
	472	{
	473	wxSprintf(buf, wxT("%d"), m_rangeMin);
	474	SetWindowText((HWND) m_staticMin, buf);
	475	}
	476
	477	if ( m_staticMax )
	478	{
	479	wxSprintf(buf, wxT("%d"), m_rangeMax);
	480	SetWindowText((HWND) m_staticMax, buf);
	481	}
	482	}
	483
	484	WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
	485	WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
	486	{
	487	if ( nCtlColor == CTLCOLOR_SCROLLBAR )
	488	return 0;
	489
	490	// Otherwise, it's a static
	491	return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
	492	}
	493
	494	// For trackbars only
	495	void wxSliderMSW::SetTickFreq(int n, int pos)
	496	{
	497	}
	498
	499	void wxSliderMSW::SetPageSize(int pageSize)
	500	{
	501	m_pageSize = pageSize;
	502	}
	503
	504	int wxSliderMSW::GetPageSize() const
	505	{
	506	return m_pageSize;
	507	}
	508
	509	void wxSliderMSW::ClearSel()
	510	{
	511	}
	512
	513	void wxSliderMSW::ClearTicks()
	514	{
	515	}
	516
	517	void wxSliderMSW::SetLineSize(int lineSize)
	518	{
	519	m_lineSize = lineSize;
	520	}
	521
	522	int wxSliderMSW::GetLineSize() const
	523	{
	524	return m_lineSize;
	525	}
	526
	527	int wxSliderMSW::GetSelEnd() const
	528	{
	529	return 0;
	530	}
	531
	532	int wxSliderMSW::GetSelStart() const
	533	{
	534	return 0;
	535	}
	536
	537	void wxSliderMSW::SetSelection(int minPos, int maxPos)
	538	{
	539	}
	540
	541	void wxSliderMSW::SetThumbLength(int len)
	542	{
	543	}
	544
	545	int wxSliderMSW::GetThumbLength() const
	546	{
	547	return 0;
	548	}
	549
	550	void wxSliderMSW::SetTick(int tickPos)
	551	{
	552	}
	553
	554	bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
	555	{
	556	return ( hWnd == GetStaticMin() \|\| hWnd == GetStaticMax() \|\| hWnd == GetEditValue() );
	557	}
	558
	559	void wxSliderMSW::Command (wxCommandEvent & event)
	560	{
	561	SetValue (event.GetInt());
	562	ProcessCommand (event);
	563	}
	564
	565	bool wxSliderMSW::Show(bool show)
	566	{
	567	wxWindow::Show(show);
	568
	569	int cshow;
	570	if (show)
	571	cshow = SW_SHOW;
	572	else
	573	cshow = SW_HIDE;
	574
	575	if(m_staticValue)
	576	ShowWindow((HWND) m_staticValue, (BOOL)cshow);
	577	if(m_staticMin)
	578	ShowWindow((HWND) m_staticMin, (BOOL)cshow);
	579	if(m_staticMax)
	580	ShowWindow((HWND) m_staticMax, (BOOL)cshow);
	581	return TRUE;
	582	}
	583
	584