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, "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().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;
}

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);

        wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
        cevent.SetEventObject( this );
        GetEventHandler()->ProcessEvent( cevent );
      }
    }
}

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

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((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::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);

  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,& 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((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,& 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((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() 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, "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	sprintf(wxBuffer, "%d", minValue);
	95	m_staticMin = (WXHWND) CreateWindowEx(0, "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), "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	sprintf(wxBuffer, "%d", maxValue);
	129	m_staticMax = (WXHWND) CreateWindowEx(0, "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	void wxSliderMSW::MSWOnVScroll(WXWORD wParam, WXWORD pos, WXHWND control)
	160	{
	161	int position = ::GetScrollPos((HWND)control, SB_CTL);
	162
	163	int nScrollInc;
	164	wxEventType scrollEvent = wxEVT_NULL;
	165	switch ( wParam )
	166	{
	167	case SB_TOP:
	168	nScrollInc = m_rangeMax - position;
	169	scrollEvent = wxEVT_SCROLL_TOP;
	170	break;
	171
	172	case SB_BOTTOM:
	173	nScrollInc = - position;
	174	scrollEvent = wxEVT_SCROLL_BOTTOM;
	175	break;
	176
	177	case SB_LINEUP:
	178	nScrollInc = - GetLineSize();
	179	scrollEvent = wxEVT_SCROLL_LINEUP;
	180	break;
	181
	182	case SB_LINEDOWN:
	183	nScrollInc = GetLineSize();
	184	scrollEvent = wxEVT_SCROLL_LINEDOWN;
	185	break;
	186
	187	case SB_PAGEUP:
	188	nScrollInc = -GetPageSize();
	189	scrollEvent = wxEVT_SCROLL_PAGEUP;
	190	break;
	191
	192	case SB_PAGEDOWN:
	193	nScrollInc = GetPageSize();
	194	scrollEvent = wxEVT_SCROLL_PAGEDOWN;
	195	break;
	196
	197	case SB_THUMBTRACK:
	198	case SB_THUMBPOSITION:
	199	#ifdef __WIN32__
	200	nScrollInc = (signed short)pos - position;
	201	#else
	202	nScrollInc = pos - position;
	203	#endif
	204	scrollEvent = wxEVT_SCROLL_THUMBTRACK;
	205	break;
	206
	207	default:
	208	nScrollInc = 0;
	209	return;
	210	}
	211
	212	if (nScrollInc != 0)
	213	{
	214
	215	int newPos = position + nScrollInc;
	216
	217	if (!(newPos < GetMin() \|\| newPos > GetMax()))
	218	{
	219	SetValue(newPos);
	220
	221	wxScrollEvent event(scrollEvent, m_windowId);
	222	event.SetPosition(newPos);
	223	event.SetEventObject( this );
	224	GetEventHandler()->ProcessEvent(event);
	225
	226	wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
	227	cevent.SetEventObject( this );
	228	GetEventHandler()->ProcessEvent( cevent );
	229	}
	230	}
	231	}
	232
	233	void wxSliderMSW::MSWOnHScroll(WXWORD wParam, WXWORD pos, WXHWND control)
	234	{
	235	MSWOnVScroll(wParam, pos, control);
	236	}
	237
	238	wxSliderMSW::~wxSliderMSW()
	239	{
	240	if (m_staticMin)
	241	DestroyWindow((HWND) m_staticMin);
	242	if (m_staticMax)
	243	DestroyWindow((HWND) m_staticMax);
	244	if (m_staticValue)
	245	DestroyWindow((HWND) m_staticValue);
	246	}
	247
	248	int wxSliderMSW::GetValue() const
	249	{
	250	return ::GetScrollPos((HWND) GetHWND(), SB_CTL);
	251	}
	252
	253	void wxSliderMSW::SetValue(int value)
	254	{
	255	::SetScrollPos((HWND) GetHWND(), SB_CTL, value, TRUE);
	256	if (m_staticValue)
	257	{
	258	sprintf(wxBuffer, "%d", value);
	259	SetWindowText((HWND) m_staticValue, wxBuffer);
	260	}
	261	}
	262
	263	void wxSliderMSW::GetSize(int width, int height) const
	264	{
	265	RECT rect;
	266	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	267
	268	wxFindMaxSize(GetHWND(), &rect);
	269
	270	if (m_staticMin)
	271	wxFindMaxSize(m_staticMin, &rect);
	272	if (m_staticMax)
	273	wxFindMaxSize(m_staticMax, &rect);
	274	if (m_staticValue)
	275	wxFindMaxSize(m_staticValue, &rect);
	276
	277	*width = rect.right - rect.left;
	278	*height = rect.bottom - rect.top;
	279	}
	280
	281	void wxSliderMSW::GetPosition(int x, int y) const
	282	{
	283	wxWindow *parent = GetParent();
	284	RECT rect;
	285	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	286
	287	wxFindMaxSize(GetHWND(), &rect);
	288
	289	if (m_staticMin)
	290	wxFindMaxSize(m_staticMin, &rect);
	291	if (m_staticMax)
	292	wxFindMaxSize(m_staticMax, &rect);
	293	if (m_staticValue)
	294	wxFindMaxSize(m_staticValue, &rect);
	295
	296	// Since we now have the absolute screen coords,
	297	// if there's a parent we must subtract its top left corner
	298	POINT point;
	299	point.x = rect.left;
	300	point.y = rect.top;
	301	if (parent)
	302	::ScreenToClient((HWND) parent->GetHWND(), &point);
	303
	304	// We may be faking the client origin.
	305	// So a window that's really at (0, 30) may appear
	306	// (to wxWin apps) to be at (0, 0).
	307	if (GetParent())
	308	{
	309	wxPoint pt(GetParent()->GetClientAreaOrigin());
	310	point.x -= pt.x;
	311	point.y -= pt.y;
	312	}
	313	*x = point.x;
	314	*y = point.y;
	315	}
	316
	317	void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	318	{
	319	int x1 = x;
	320	int y1 = y;
	321	int w1 = width;
	322	int h1 = height;
	323
	324	int currentX, currentY;
	325	GetPosition(&currentX, &currentY);
	326	if (x == -1 \|\| (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	327	x1 = currentX;
	328	if (y == -1 \|\| (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	329	y1 = currentY;
	330
	331	AdjustForParentClientOrigin(x1, y1, sizeFlags);
	332
	333	char buf[300];
	334
	335	int x_offset = x;
	336	int y_offset = y;
	337
	338	int cx; // slider,min,max sizes
	339	int cy;
	340	int cyf;
	341
	342	wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());
	343
	344	if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
	345	{
	346	if ( m_windowStyle & wxSL_LABELS )
	347	{
	348	int min_len = 0;
	349
	350	GetWindowText((HWND) m_staticMin, buf, 300);
	351	GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
	352
	353	int max_len = 0;
	354
	355	GetWindowText((HWND) m_staticMax, buf, 300);
	356	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	357	if (m_staticValue)
	358	{
	359	int new_width = (int)(wxMax(min_len, max_len));
	360	int valueHeight = (int)cyf;
	361	#ifdef __WIN32__
	362	// For some reason, under Win95, the text edit control has
	363	// a lot of space before the first character
	364	new_width += 3*cx;
	365	#endif
	366	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	367	x_offset += new_width + cx;
	368	}
	369
	370	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	371	x_offset += (int)(min_len + cx);
	372
	373	int slider_length = (int)(w1 - x_offset - max_len - cx);
	374
	375	int slider_height = cy;
	376
	377	// Slider must have a minimum/default length/height
	378	if (slider_length < 100)
	379	slider_length = 100;
	380
	381	MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_length, slider_height, TRUE);
	382	x_offset += slider_length + cx;
	383
	384	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	385	}
	386	else
	387	{
	388	// No labels
	389	if ( w1 < 0 )
	390	w1 = 200;
	391	if ( h1 < 0 )
	392	h1 = 20;
	393	MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
	394	}
	395	}
	396	else
	397	{
	398	if ( m_windowStyle & wxSL_LABELS )
	399	{
	400	int min_len;
	401	GetWindowText((HWND) m_staticMin, buf, 300);
	402	GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());
	403
	404	int max_len;
	405	GetWindowText((HWND) m_staticMax, buf, 300);
	406	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	407
	408	if (m_staticValue)
	409	{
	410	int new_width = (int)(wxMax(min_len, max_len));
	411	int valueHeight = (int)cyf;
	412	/*** Suggested change by George Tasker - remove this block...
	413	#ifdef __WIN32__
	414	// For some reason, under Win95, the text edit control has
	415	// a lot of space before the first character
	416	new_width += 3*cx;
	417	#endif
	418	... and replace with following line: */
	419	new_width += cx;
	420
	421	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	422	y_offset += valueHeight;
	423	}
	424
	425	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	426	y_offset += cy;
	427
	428	int slider_length = (int)(h1 - y_offset - cy - cy);
	429
	430	// Use character height as an estimate of slider width (yes, width)
	431	int slider_width = cy;
	432
	433	// Slider must have a minimum/default length
	434	if (slider_length < 100)
	435	slider_length = 100;
	436
	437	MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_width, slider_length, TRUE);
	438	y_offset += slider_length;
	439
	440	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	441	}
	442	else
	443	{
	444	// No labels
	445	if ( w1 < 0 )
	446	w1 = 20;
	447	if ( h1 < 0 )
	448	h1 = 200;
	449	MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
	450	}
	451	}
	452	}
	453
	454	void wxSliderMSW::SetRange(int minValue, int maxValue)
	455	{
	456	m_rangeMin = minValue;
	457	m_rangeMax = maxValue;
	458
	459	::SetScrollRange((HWND) GetHWND(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	460	char buf[40];
	461	if ( m_staticMin )
	462	{
	463	sprintf(buf, "%d", m_rangeMin);
	464	SetWindowText((HWND) m_staticMin, buf);
	465	}
	466
	467	if ( m_staticMax )
	468	{
	469	sprintf(buf, "%d", m_rangeMax);
	470	SetWindowText((HWND) m_staticMax, buf);
	471	}
	472	}
	473
	474	WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
	475	WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
	476	{
	477	if ( nCtlColor == CTLCOLOR_SCROLLBAR )
	478	return 0;
	479
	480	// Otherwise, it's a static
	481	if (GetParent()->GetTransparentBackground())
	482	SetBkMode((HDC) pDC, TRANSPARENT);
	483	else
	484	SetBkMode((HDC) pDC, OPAQUE);
	485
	486	::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
	487	::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
	488
	489	wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
	490
	491	return (WXHBRUSH) backgroundBrush->GetResourceHandle();
	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