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"

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)
#endif

// 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);
  SetValidator(validator);

  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, _T("STATIC"), NULL,
                           msStyle,
                           0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                           wxGetInstance(), NULL);

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

  // Now create slider
  m_windowId = (int)NewControlId();

  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), _T("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, _T("%d"), maxValue);
  m_staticMax = (WXHWND) CreateWindowEx(0, _T("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.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, _T("%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, _T("%d"), m_rangeMin);
      SetWindowText((HWND) m_staticMin, buf);
  }

  if ( m_staticMax )
  {
    wxSprintf(buf, _T("%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
  if (GetParent()->GetTransparentBackground())
    SetBkMode((HDC) pDC, TRANSPARENT);
  else
    SetBkMode((HDC) pDC, OPAQUE);

  ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
  ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));

  wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);

  return (WXHBRUSH) backgroundBrush->GetResourceHandle();
}

// 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	#if !USE_SHARED_LIBRARY
	33	IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)
	34	#endif
	35
	36	// Slider
	37	wxSliderMSW::wxSliderMSW()
	38	{
	39	m_staticValue = 0;
	40	m_staticMin = 0;
	41	m_staticMax = 0;
	42	m_pageSize = 1;
	43	m_lineSize = 1;
	44	m_rangeMax = 0;
	45	m_rangeMin = 0;
	46	m_tickFreq = 0;
	47	}
	48
	49	bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
	50	int value, int minValue, int maxValue,
	51	const wxPoint& pos,
	52	const wxSize& size, long style,
	53	const wxValidator& validator,
	54	const wxString& name)
	55	{
	56	SetName(name);
	57	SetValidator(validator);
	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, _T("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, _T("%d"), minValue);
	95	m_staticMin = (WXHWND) CreateWindowEx(0, _T("STATIC"), wxBuffer,
	96	STATIC_FLAGS,
	97	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	98	wxGetInstance(), NULL);
	99
	100	// Now create slider
	101	m_windowId = (int)NewControlId();
	102
	103	msStyle = 0;
	104	if (m_windowStyle & wxSL_VERTICAL)
	105	msStyle = SBS_VERT \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	106	else
	107	msStyle = SBS_HORZ \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	108
	109	HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), _T("SCROLLBAR"), wxBuffer,
	110	msStyle,
	111	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
	112	wxGetInstance(), NULL);
	113
	114	m_pageSize = (int)((maxValue-minValue)/10);
	115	m_rangeMax = maxValue;
	116	m_rangeMin = minValue;
	117
	118	::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
	119	::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
	120	ShowWindow(scroll_bar, SW_SHOW);
	121
	122	m_hWnd = (WXHWND)scroll_bar;
	123
	124	// Subclass again for purposes of dialog editing mode
	125	SubclassWin(GetHWND());
	126
	127	// Finally, create max value static item
	128	wxSprintf(wxBuffer, _T("%d"), maxValue);
	129	m_staticMax = (WXHWND) CreateWindowEx(0, _T("STATIC"), wxBuffer,
	130	STATIC_FLAGS,
	131	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	132	wxGetInstance(), NULL);
	133
	134	SetFont(parent->GetFont());
	135
	136	if (GetFont().Ok())
	137	{
	138	// GetFont()->RealizeResource();
	139	if (GetFont().GetResourceHandle())
	140	{
	141	if ( m_staticMin )
	142	SendMessage((HWND)m_staticMin,WM_SETFONT,
	143	(WPARAM)GetFont().GetResourceHandle(),0L);
	144	if ( m_staticMax )
	145	SendMessage((HWND)m_staticMax,WM_SETFONT,
	146	(WPARAM)GetFont().GetResourceHandle(),0L);
	147	if (m_staticValue)
	148	SendMessage((HWND)m_staticValue,WM_SETFONT,
	149	(WPARAM)GetFont().GetResourceHandle(),0L);
	150	}
	151	}
	152
	153	SetSize(x, y, width, height);
	154	SetValue(value);
	155
	156	return TRUE;
	157	}
	158
	159	bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
	160	WXWORD pos, WXHWND control)
	161	{
	162	int position = ::GetScrollPos((HWND)control, SB_CTL);
	163
	164	int nScrollInc;
	165	wxEventType scrollEvent = wxEVT_NULL;
	166	switch ( wParam )
	167	{
	168	case SB_TOP:
	169	nScrollInc = m_rangeMax - position;
	170	scrollEvent = wxEVT_SCROLL_TOP;
	171	break;
	172
	173	case SB_BOTTOM:
	174	nScrollInc = - position;
	175	scrollEvent = wxEVT_SCROLL_BOTTOM;
	176	break;
	177
	178	case SB_LINEUP:
	179	nScrollInc = - GetLineSize();
	180	scrollEvent = wxEVT_SCROLL_LINEUP;
	181	break;
	182
	183	case SB_LINEDOWN:
	184	nScrollInc = GetLineSize();
	185	scrollEvent = wxEVT_SCROLL_LINEDOWN;
	186	break;
	187
	188	case SB_PAGEUP:
	189	nScrollInc = -GetPageSize();
	190	scrollEvent = wxEVT_SCROLL_PAGEUP;
	191	break;
	192
	193	case SB_PAGEDOWN:
	194	nScrollInc = GetPageSize();
	195	scrollEvent = wxEVT_SCROLL_PAGEDOWN;
	196	break;
	197
	198	case SB_THUMBTRACK:
	199	case SB_THUMBPOSITION:
	200	#ifdef __WIN32__
	201	nScrollInc = (signed short)pos - position;
	202	#else
	203	nScrollInc = pos - position;
	204	#endif
	205	scrollEvent = wxEVT_SCROLL_THUMBTRACK;
	206	break;
	207
	208	default:
	209	nScrollInc = 0;
	210	}
	211
	212	if (nScrollInc == 0)
	213	{
	214	// no event...
	215	return FALSE;
	216	}
	217
	218	int newPos = position + nScrollInc;
	219
	220	if ( (newPos < GetMin()) \|\| (newPos > GetMax()) )
	221	{
	222	// out of range - but we did process it
	223	return TRUE;
	224	}
	225
	226	SetValue(newPos);
	227
	228	wxScrollEvent event(scrollEvent, m_windowId);
	229	event.SetPosition(newPos);
	230	event.SetEventObject( this );
	231	GetEventHandler()->ProcessEvent(event);
	232
	233	wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
	234	cevent.SetEventObject( this );
	235
	236	return GetEventHandler()->ProcessEvent( cevent );
	237	}
	238
	239	wxSliderMSW::~wxSliderMSW()
	240	{
	241	if (m_staticMin)
	242	DestroyWindow((HWND) m_staticMin);
	243	if (m_staticMax)
	244	DestroyWindow((HWND) m_staticMax);
	245	if (m_staticValue)
	246	DestroyWindow((HWND) m_staticValue);
	247	}
	248
	249	int wxSliderMSW::GetValue() const
	250	{
	251	return ::GetScrollPos(GetHwnd(), SB_CTL);
	252	}
	253
	254	void wxSliderMSW::SetValue(int value)
	255	{
	256	::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
	257	if (m_staticValue)
	258	{
	259	wxSprintf(wxBuffer, _T("%d"), value);
	260	SetWindowText((HWND) m_staticValue, wxBuffer);
	261	}
	262	}
	263
	264	void wxSliderMSW::GetSize(int width, int height) const
	265	{
	266	RECT rect;
	267	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	268
	269	wxFindMaxSize(GetHWND(), &rect);
	270
	271	if (m_staticMin)
	272	wxFindMaxSize(m_staticMin, &rect);
	273	if (m_staticMax)
	274	wxFindMaxSize(m_staticMax, &rect);
	275	if (m_staticValue)
	276	wxFindMaxSize(m_staticValue, &rect);
	277
	278	*width = rect.right - rect.left;
	279	*height = rect.bottom - rect.top;
	280	}
	281
	282	void wxSliderMSW::GetPosition(int x, int y) const
	283	{
	284	wxWindow *parent = GetParent();
	285	RECT rect;
	286	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	287
	288	wxFindMaxSize(GetHWND(), &rect);
	289
	290	if (m_staticMin)
	291	wxFindMaxSize(m_staticMin, &rect);
	292	if (m_staticMax)
	293	wxFindMaxSize(m_staticMax, &rect);
	294	if (m_staticValue)
	295	wxFindMaxSize(m_staticValue, &rect);
	296
	297	// Since we now have the absolute screen coords,
	298	// if there's a parent we must subtract its top left corner
	299	POINT point;
	300	point.x = rect.left;
	301	point.y = rect.top;
	302	if (parent)
	303	::ScreenToClient((HWND) parent->GetHWND(), &point);
	304
	305	// We may be faking the client origin.
	306	// So a window that's really at (0, 30) may appear
	307	// (to wxWin apps) to be at (0, 0).
	308	if (GetParent())
	309	{
	310	wxPoint pt(GetParent()->GetClientAreaOrigin());
	311	point.x -= pt.x;
	312	point.y -= pt.y;
	313	}
	314	*x = point.x;
	315	*y = point.y;
	316	}
	317
	318	// TODO one day, make sense of all this horros and replace it with a readable
	319	// DoGetBestSize()
	320	void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	321	{
	322	int x1 = x;
	323	int y1 = y;
	324	int w1 = width;
	325	int h1 = height;
	326
	327	int currentX, currentY;
	328	GetPosition(&currentX, &currentY);
	329	if (x == -1 \|\| (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	330	x1 = currentX;
	331	if (y == -1 \|\| (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	332	y1 = currentY;
	333
	334	AdjustForParentClientOrigin(x1, y1, sizeFlags);
	335
	336	wxChar buf[300];
	337
	338	int x_offset = x;
	339	int y_offset = y;
	340
	341	int cx; // slider,min,max sizes
	342	int cy;
	343	int cyf;
	344
	345	wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());
	346
	347	if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
	348	{
	349	if ( m_windowStyle & wxSL_LABELS )
	350	{
	351	int min_len = 0;
	352
	353	GetWindowText((HWND) m_staticMin, buf, 300);
	354	GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
	355
	356	int max_len = 0;
	357
	358	GetWindowText((HWND) m_staticMax, buf, 300);
	359	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	360	if (m_staticValue)
	361	{
	362	int new_width = (int)(wxMax(min_len, max_len));
	363	int valueHeight = (int)cyf;
	364	#ifdef __WIN32__
	365	// For some reason, under Win95, the text edit control has
	366	// a lot of space before the first character
	367	new_width += 3*cx;
	368	#endif
	369	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	370	x_offset += new_width + cx;
	371	}
	372
	373	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	374	x_offset += (int)(min_len + cx);
	375
	376	int slider_length = (int)(w1 - x_offset - max_len - cx);
	377
	378	int slider_height = cy;
	379
	380	// Slider must have a minimum/default length/height
	381	if (slider_length < 100)
	382	slider_length = 100;
	383
	384	MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
	385	x_offset += slider_length + cx;
	386
	387	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	388	}
	389	else
	390	{
	391	// No labels
	392	if ( w1 < 0 )
	393	w1 = 200;
	394	if ( h1 < 0 )
	395	h1 = 20;
	396	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	397	}
	398	}
	399	else
	400	{
	401	if ( m_windowStyle & wxSL_LABELS )
	402	{
	403	int min_len;
	404	GetWindowText((HWND) m_staticMin, buf, 300);
	405	GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());
	406
	407	int max_len;
	408	GetWindowText((HWND) m_staticMax, buf, 300);
	409	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	410
	411	if (m_staticValue)
	412	{
	413	int new_width = (int)(wxMax(min_len, max_len));
	414	int valueHeight = (int)cyf;
	415	/*** Suggested change by George Tasker - remove this block...
	416	#ifdef __WIN32__
	417	// For some reason, under Win95, the text edit control has
	418	// a lot of space before the first character
	419	new_width += 3*cx;
	420	#endif
	421	... and replace with following line: */
	422	new_width += cx;
	423
	424	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	425	y_offset += valueHeight;
	426	}
	427
	428	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	429	y_offset += cy;
	430
	431	int slider_length = (int)(h1 - y_offset - cy - cy);
	432
	433	// Use character height as an estimate of slider width (yes, width)
	434	int slider_width = cy;
	435
	436	// Slider must have a minimum/default length
	437	if (slider_length < 100)
	438	slider_length = 100;
	439
	440	MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
	441	y_offset += slider_length;
	442
	443	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	444	}
	445	else
	446	{
	447	// No labels
	448	if ( w1 < 0 )
	449	w1 = 20;
	450	if ( h1 < 0 )
	451	h1 = 200;
	452	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	453	}
	454	}
	455	}
	456
	457	void wxSliderMSW::SetRange(int minValue, int maxValue)
	458	{
	459	m_rangeMin = minValue;
	460	m_rangeMax = maxValue;
	461
	462	::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	463	wxChar buf[40];
	464	if ( m_staticMin )
	465	{
	466	wxSprintf(buf, _T("%d"), m_rangeMin);
	467	SetWindowText((HWND) m_staticMin, buf);
	468	}
	469
	470	if ( m_staticMax )
	471	{
	472	wxSprintf(buf, _T("%d"), m_rangeMax);
	473	SetWindowText((HWND) m_staticMax, buf);
	474	}
	475	}
	476
	477	WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
	478	WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
	479	{
	480	if ( nCtlColor == CTLCOLOR_SCROLLBAR )
	481	return 0;
	482
	483	// Otherwise, it's a static
	484	if (GetParent()->GetTransparentBackground())
	485	SetBkMode((HDC) pDC, TRANSPARENT);
	486	else
	487	SetBkMode((HDC) pDC, OPAQUE);
	488
	489	::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
	490	::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
	491
	492	wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
	493
	494	return (WXHBRUSH) backgroundBrush->GetResourceHandle();
	495	}
	496
	497	// For trackbars only
	498	void wxSliderMSW::SetTickFreq(int n, int pos)
	499	{
	500	}
	501
	502	void wxSliderMSW::SetPageSize(int pageSize)
	503	{
	504	m_pageSize = pageSize;
	505	}
	506
	507	int wxSliderMSW::GetPageSize() const
	508	{
	509	return m_pageSize;
	510	}
	511
	512	void wxSliderMSW::ClearSel()
	513	{
	514	}
	515
	516	void wxSliderMSW::ClearTicks()
	517	{
	518	}
	519
	520	void wxSliderMSW::SetLineSize(int lineSize)
	521	{
	522	m_lineSize = lineSize;
	523	}
	524
	525	int wxSliderMSW::GetLineSize() const
	526	{
	527	return m_lineSize;
	528	}
	529
	530	int wxSliderMSW::GetSelEnd() const
	531	{
	532	return 0;
	533	}
	534
	535	int wxSliderMSW::GetSelStart() const
	536	{
	537	return 0;
	538	}
	539
	540	void wxSliderMSW::SetSelection(int minPos, int maxPos)
	541	{
	542	}
	543
	544	void wxSliderMSW::SetThumbLength(int len)
	545	{
	546	}
	547
	548	int wxSliderMSW::GetThumbLength() const
	549	{
	550	return 0;
	551	}
	552
	553	void wxSliderMSW::SetTick(int tickPos)
	554	{
	555	}
	556
	557	bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
	558	{
	559	return ( hWnd == GetStaticMin() \|\| hWnd == GetStaticMax() \|\| hWnd == GetEditValue() );
	560	}
	561
	562	void wxSliderMSW::Command (wxCommandEvent & event)
	563	{
	564	SetValue (event.GetInt());
	565	ProcessCommand (event);
	566	}
	567
	568	bool wxSliderMSW::Show(bool show)
	569	{
	570	wxWindow::Show(show);
	571
	572	int cshow;
	573	if (show)
	574	cshow = SW_SHOW;
	575	else
	576	cshow = SW_HIDE;
	577
	578	if(m_staticValue)
	579	ShowWindow((HWND) m_staticValue, (BOOL)cshow);
	580	if(m_staticMin)
	581	ShowWindow((HWND) m_staticMin, (BOOL)cshow);
	582	if(m_staticMax)
	583	ShowWindow((HWND) m_staticMax, (BOOL)cshow);
	584	return TRUE;
	585	}
	586
	587