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

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)

#if WXWIN_COMPATIBILITY
BEGIN_EVENT_TABLE(wxSliderMSW, wxControl)
  EVT_SCROLL(wxSliderMSW::OnScroll)
END_EVENT_TABLE()
#endif

#endif

// Slider
wxSliderMSW::wxSliderMSW(void)
{
  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, "STATIC", NULL,
                           msStyle,
                           0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                           wxGetInstance(), NULL);

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

  SetFont(* parent->GetFont());

  if (GetFont())
  {
//    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;
}

void wxSliderMSW::MSWOnVScroll(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;
                    return;
    }

    if (nScrollInc != 0)
    {

      int newPos = position + nScrollInc;

      if (!(newPos < GetMin() || newPos > GetMax()))
      {
        SetValue(newPos);

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

void wxSliderMSW::MSWOnHScroll(WXWORD wParam, WXWORD pos, WXHWND control)
{
	MSWOnVScroll(wParam, pos, control);
}

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

int wxSliderMSW::GetValue(void) const
{
  return ::GetScrollPos((HWND) GetHWND(), SB_CTL);
}

void wxSliderMSW::SetValue(int value)
{
  ::SetScrollPos((HWND) GetHWND(), SB_CTL, value, TRUE);
  if (m_staticValue)
  {
    sprintf(wxBuffer, "%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;
}

void wxSliderMSW::SetSize(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);

  char buf[300];

  int x_offset = x;
  int y_offset = y;

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

  wxGetCharSize(GetHWND(), &cx, &cy,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, GetFont());

    int max_len = 0;

    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, 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((HWND) 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((HWND) 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,GetFont());

    int max_len;
    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, 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((HWND) 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((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
	}
  }
}

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

  ::SetScrollRange((HWND) GetHWND(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
  char buf[40];
  if ( m_staticMin )
  {
  	sprintf(buf, "%d", m_rangeMin);
  	SetWindowText((HWND) m_staticMin, buf);
  }

  if ( m_staticMax )
  {
    sprintf(buf, "%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(void) const
{
  return m_pageSize;
}

void wxSliderMSW::ClearSel(void)
{
}

void wxSliderMSW::ClearTicks(void)
{
}

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

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

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

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

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

void wxSliderMSW::SetThumbLength(int len)
{
}

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

void wxSliderMSW::SetTick(int tickPos)
{
}

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

#if WXWIN_COMPATIBILITY
// Backward compatibility
void wxSliderMSW::OnScroll(wxScrollEvent& event)
{
    wxEventType oldEvent = event.GetEventType();
    event.SetEventType( wxEVT_COMMAND_SLIDER_UPDATED );
    if ( !GetEventHandler()->ProcessEvent(event) )
    {
        event.SetEventType( oldEvent );
        if (!GetParent()->GetEventHandler()->ProcessEvent(event))
            event.Skip();
    }
}
#endif

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/msw/slidrmsw.h"
	28	#include "wx/msw/private.h"
	29
	30	#if !USE_SHARED_LIBRARY
	31	IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)
	32
	33	#if WXWIN_COMPATIBILITY
	34	BEGIN_EVENT_TABLE(wxSliderMSW, wxControl)
	35	EVT_SCROLL(wxSliderMSW::OnScroll)
	36	END_EVENT_TABLE()
	37	#endif
	38
	39	#endif
	40
	41	// Slider
	42	wxSliderMSW::wxSliderMSW(void)
	43	{
	44	m_staticValue = 0;
	45	m_staticMin = 0;
	46	m_staticMax = 0;
	47	m_pageSize = 1;
	48	m_lineSize = 1;
	49	m_rangeMax = 0;
	50	m_rangeMin = 0;
	51	m_tickFreq = 0;
	52	}
	53
	54	bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
	55	int value, int minValue, int maxValue,
	56	const wxPoint& pos,
	57	const wxSize& size, long style,
	58	const wxValidator& validator,
	59	const wxString& name)
	60	{
	61	SetName(name);
	62	SetValidator(validator);
	63
	64	if (parent) parent->AddChild(this);
	65	SetBackgroundColour(parent->GetBackgroundColour()) ;
	66	SetForegroundColour(parent->GetForegroundColour()) ;
	67
	68	m_staticValue = 0;
	69	m_staticMin = 0;
	70	m_staticMax = 0;
	71	m_pageSize = 1;
	72	m_lineSize = 1;
	73	m_windowStyle = style;
	74	m_tickFreq = 0;
	75
	76	if ( id == -1 )
	77	m_windowId = (int)NewControlId();
	78	else
	79	m_windowId = id;
	80
	81	int x = pos.x;
	82	int y = pos.y;
	83	int width = size.x;
	84	int height = size.y;
	85
	86	// non-Win95 implementation
	87
	88	long msStyle = WS_CHILD \| WS_VISIBLE \| WS_BORDER \| SS_CENTER;
	89
	90	bool want3D;
	91	WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
	92
	93	m_staticValue = (WXHWND) CreateWindowEx(exStyle, "STATIC", NULL,
	94	msStyle,
	95	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	96	wxGetInstance(), NULL);
	97
	98	// Now create min static control
	99	sprintf(wxBuffer, "%d", minValue);
	100	m_staticMin = (WXHWND) CreateWindowEx(0, "STATIC", wxBuffer,
	101	STATIC_FLAGS,
	102	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	103	wxGetInstance(), NULL);
	104
	105	// Now create slider
	106	m_windowId = (int)NewControlId();
	107
	108	msStyle = 0;
	109	if (m_windowStyle & wxSL_VERTICAL)
	110	msStyle = SBS_VERT \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	111	else
	112	msStyle = SBS_HORZ \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	113
	114	HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), "SCROLLBAR", wxBuffer,
	115	msStyle,
	116	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
	117	wxGetInstance(), NULL);
	118
	119	m_pageSize = (int)((maxValue-minValue)/10);
	120	m_rangeMax = maxValue;
	121	m_rangeMin = minValue;
	122
	123	::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
	124	::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
	125	ShowWindow(scroll_bar, SW_SHOW);
	126
	127	m_hWnd = (WXHWND)scroll_bar;
	128
	129	// Subclass again for purposes of dialog editing mode
	130	SubclassWin(GetHWND());
	131
	132	// Finally, create max value static item
	133	sprintf(wxBuffer, "%d", maxValue);
	134	m_staticMax = (WXHWND) CreateWindowEx(0, "STATIC", wxBuffer,
	135	STATIC_FLAGS,
	136	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	137	wxGetInstance(), NULL);
	138
	139	SetFont(* parent->GetFont());
	140
	141	if (GetFont())
	142	{
	143	// GetFont()->RealizeResource();
	144	if (GetFont()->GetResourceHandle())
	145	{
	146	if ( m_staticMin )
	147	SendMessage((HWND)m_staticMin,WM_SETFONT,
	148	(WPARAM)GetFont()->GetResourceHandle(),0L);
	149	if ( m_staticMax )
	150	SendMessage((HWND)m_staticMax,WM_SETFONT,
	151	(WPARAM)GetFont()->GetResourceHandle(),0L);
	152	if (m_staticValue)
	153	SendMessage((HWND)m_staticValue,WM_SETFONT,
	154	(WPARAM)GetFont()->GetResourceHandle(),0L);
	155	}
	156	}
	157
	158	SetSize(x, y, width, height);
	159	SetValue(value);
	160
	161	return TRUE;
	162	}
	163
	164	void wxSliderMSW::MSWOnVScroll(WXWORD wParam, 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	return;
	215	}
	216
	217	if (nScrollInc != 0)
	218	{
	219
	220	int newPos = position + nScrollInc;
	221
	222	if (!(newPos < GetMin() \|\| newPos > GetMax()))
	223	{
	224	SetValue(newPos);
	225
	226	wxScrollEvent event(scrollEvent, m_windowId);
	227	event.SetPosition(newPos);
	228	event.SetEventObject( this );
	229	GetEventHandler()->ProcessEvent(event);
	230	}
	231	}
	232	}
	233
	234	void wxSliderMSW::MSWOnHScroll(WXWORD wParam, WXWORD pos, WXHWND control)
	235	{
	236	MSWOnVScroll(wParam, pos, control);
	237	}
	238
	239	wxSliderMSW::~wxSliderMSW(void)
	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(void) const
	250	{
	251	return ::GetScrollPos((HWND) GetHWND(), SB_CTL);
	252	}
	253
	254	void wxSliderMSW::SetValue(int value)
	255	{
	256	::SetScrollPos((HWND) GetHWND(), SB_CTL, value, TRUE);
	257	if (m_staticValue)
	258	{
	259	sprintf(wxBuffer, "%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	void wxSliderMSW::SetSize(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	char 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,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, GetFont());
	353
	354	int max_len = 0;
	355
	356	GetWindowText((HWND) m_staticMax, buf, 300);
	357	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, 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((HWND) 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((HWND) 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,GetFont());
	404
	405	int max_len;
	406	GetWindowText((HWND) m_staticMax, buf, 300);
	407	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, 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((HWND) 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((HWND) 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((HWND) GetHWND(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	461	char buf[40];
	462	if ( m_staticMin )
	463	{
	464	sprintf(buf, "%d", m_rangeMin);
	465	SetWindowText((HWND) m_staticMin, buf);
	466	}
	467
	468	if ( m_staticMax )
	469	{
	470	sprintf(buf, "%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	if (GetParent()->GetTransparentBackground())
	483	SetBkMode((HDC) pDC, TRANSPARENT);
	484	else
	485	SetBkMode((HDC) pDC, OPAQUE);
	486
	487	::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
	488	::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
	489
	490	wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
	491
	492	return (WXHBRUSH) backgroundBrush->GetResourceHandle();
	493	}
	494
	495	// For trackbars only
	496	void wxSliderMSW::SetTickFreq(int n, int pos)
	497	{
	498	}
	499
	500	void wxSliderMSW::SetPageSize(int pageSize)
	501	{
	502	m_pageSize = pageSize;
	503	}
	504
	505	int wxSliderMSW::GetPageSize(void) const
	506	{
	507	return m_pageSize;
	508	}
	509
	510	void wxSliderMSW::ClearSel(void)
	511	{
	512	}
	513
	514	void wxSliderMSW::ClearTicks(void)
	515	{
	516	}
	517
	518	void wxSliderMSW::SetLineSize(int lineSize)
	519	{
	520	m_lineSize = lineSize;
	521	}
	522
	523	int wxSliderMSW::GetLineSize(void) const
	524	{
	525	return m_lineSize;
	526	}
	527
	528	int wxSliderMSW::GetSelEnd(void) const
	529	{
	530	return 0;
	531	}
	532
	533	int wxSliderMSW::GetSelStart(void) const
	534	{
	535	return 0;
	536	}
	537
	538	void wxSliderMSW::SetSelection(int minPos, int maxPos)
	539	{
	540	}
	541
	542	void wxSliderMSW::SetThumbLength(int len)
	543	{
	544	}
	545
	546	int wxSliderMSW::GetThumbLength(void) const
	547	{
	548	return 0;
	549	}
	550
	551	void wxSliderMSW::SetTick(int tickPos)
	552	{
	553	}
	554
	555	bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
	556	{
	557	return ( hWnd == GetStaticMin() \|\| hWnd == GetStaticMax() \|\| hWnd == GetEditValue() );
	558	}
	559
	560	#if WXWIN_COMPATIBILITY
	561	// Backward compatibility
	562	void wxSliderMSW::OnScroll(wxScrollEvent& event)
	563	{
	564	wxEventType oldEvent = event.GetEventType();
	565	event.SetEventType( wxEVT_COMMAND_SLIDER_UPDATED );
	566	if ( !GetEventHandler()->ProcessEvent(event) )
	567	{
	568	event.SetEventType( oldEvent );
	569	if (!GetParent()->GetEventHandler()->ProcessEvent(event))
	570	event.Skip();
	571	}
	572	}
	573	#endif
	574
	575	void wxSliderMSW::Command (wxCommandEvent & event)
	576	{
	577	SetValue (event.GetInt());
	578	ProcessCommand (event);
	579	}
	580
	581	bool wxSliderMSW::Show(bool show)
	582	{
	583	wxWindow::Show(show);
	584
	585	int cshow;
	586	if (show)
	587	cshow = SW_SHOW;
	588	else
	589	cshow = SW_HIDE;
	590
	591	if(m_staticValue)
	592	ShowWindow((HWND) m_staticValue, (BOOL)cshow);
	593	if(m_staticMin)
	594	ShowWindow((HWND) m_staticMin, (BOOL)cshow);
	595	if(m_staticMax)
	596	ShowWindow((HWND) m_staticMax, (BOOL)cshow);
	597	return TRUE;
	598	}
	599
	600