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;
}

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;

  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);
}

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

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

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

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

// Not yet implemented
void wxSliderMSW::SetThumbLength(int WXUNUSED(lenPixels))
{
}

// Not yet implemented
int wxSliderMSW::GetThumbLength() const
{
    return 0;
}

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