/////////////////////////////////////////////////////////////////////////////
-// Name: slider.cpp
-// Purpose: wxSlider
+// Name: src/msw/slider.cpp
+// Purpose: wxSlider, using the Win95 (and later) trackbar control
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart 1998
+// Vadim Zeitlin 2004
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "slider.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WX_PRECOMP
-#include <stdio.h>
+#if wxUSE_SLIDER
+
#include "wx/slider.h"
-#endif
-#include "wx/msw/private.h"
+#ifndef WX_PRECOMP
+ #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+ #include "wx/brush.h"
+#endif
-// Can opt to not use track bar under Win95 if you prefer it - set to 0
-#define USE_TRACK_BAR 1
+#include "wx/msw/subwin.h"
-#if defined(__WIN95__) && !defined(__GNUWIN32__)
-#include <commctrl.h>
-#endif
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl)
+namespace
+{
-#if WXWIN_COMPATIBILITY
-BEGIN_EVENT_TABLE(wxSlider, wxControl)
- EVT_SCROLL(wxSlider::OnScroll)
-END_EVENT_TABLE()
-#endif
+// indices of labels in wxSlider::m_labels
+enum
+{
+ SliderLabel_Min,
+ SliderLabel_Max,
+ SliderLabel_Value,
+ SliderLabel_Last
+};
+
+// the gaps between the slider and the labels, in pixels
+const int HGAP = 5;
+const int VGAP = 4;
+// the width of the borders including white space
+const int BORDERPAD = 8;
+// these 2 values are arbitrary:
+const int THUMB = 24;
+const int TICK = 8;
+
+} // anonymous namespace
+
+// ============================================================================
+// wxSlider implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// construction
+// ----------------------------------------------------------------------------
+
+void wxSlider::Init()
+{
+ m_labels = NULL;
-#endif
+ m_pageSize = 1;
+ m_lineSize = 1;
+ m_rangeMax = 0;
+ m_rangeMin = 0;
+ m_tickFreq = 0;
-// Slider
-wxSlider::wxSlider(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;
+ m_isDragging = false;
}
-bool wxSlider::Create(wxWindow *parent, const wxWindowID id,
- const int value, const int minValue, const int maxValue,
- const wxPoint& pos,
- const wxSize& size, const long style,
- const wxValidator& validator,
- const wxString& name)
-{
- SetName(name);
- SetValidator(validator);
-
- if (parent) parent->AddChild(this);
- SetBackgroundColour(parent->GetDefaultBackgroundColour()) ;
- SetForegroundColour(parent->GetDefaultForegroundColour()) ;
-
- 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;
-
-#if defined(__WIN95__) && USE_TRACK_BAR
- long msStyle ;
-
- if ( m_windowStyle & wxSL_LABELS )
- {
- 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);
- }
-
- msStyle = 0;
- if (m_windowStyle & wxSL_VERTICAL)
- msStyle = TBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
- else
- msStyle = TBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
-
- if ( m_windowStyle & wxSL_AUTOTICKS )
- msStyle |= TBS_AUTOTICKS ;
-
- if ( m_windowStyle & wxSL_LEFT )
- msStyle |= TBS_LEFT;
- else if ( m_windowStyle & wxSL_RIGHT )
- msStyle |= TBS_RIGHT;
- else if ( m_windowStyle & wxSL_TOP )
- msStyle |= TBS_TOP;
- else if ( m_windowStyle & wxSL_BOTTOM )
- msStyle |= TBS_BOTTOM;
- else if ( m_windowStyle & wxSL_BOTH )
- msStyle |= TBS_BOTH;
- else if ( ! (m_windowStyle & wxSL_AUTOTICKS) )
- msStyle |= TBS_NOTICKS;
-
- if ( m_windowStyle & wxSL_SELRANGE )
- msStyle |= TBS_ENABLESELRANGE ;
-
- HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), TRACKBAR_CLASS, wxBuffer,
- msStyle,
- 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
- wxGetInstance(), NULL);
-
- m_rangeMax = maxValue;
- m_rangeMin = minValue;
-
- m_pageSize = (int)((maxValue-minValue)/10);
-
- ::SendMessage(scroll_bar, TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
- ::SendMessage(scroll_bar, TBM_SETPOS, TRUE, (LPARAM)value);
- ::SendMessage(scroll_bar, TBM_SETPAGESIZE, 0, (LPARAM)m_pageSize);
-
- m_hWnd = (WXHWND)scroll_bar;
-
- SubclassWin(GetHWND());
-
- SetFont(parent->GetFont());
-
- if ( m_windowStyle & wxSL_LABELS )
- {
- // 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);
-
- if (GetFont())
- {
-// GetFont()->RealizeResource();
- if (GetFont()->GetResourceHandle())
+bool wxSlider::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)
+{
+ wxCHECK_MSG( minValue < maxValue, false,
+ wxT("Slider minimum must be strictly less than the maximum.") );
+
+ // our styles are redundant: wxSL_LEFT/RIGHT imply wxSL_VERTICAL and
+ // wxSL_TOP/BOTTOM imply wxSL_HORIZONTAL, but for backwards compatibility
+ // reasons we can't really change it, instead try to infer the orientation
+ // from the flags given to us here
+ switch ( style & (wxSL_LEFT | wxSL_RIGHT | wxSL_TOP | wxSL_BOTTOM) )
+ {
+ case wxSL_LEFT:
+ case wxSL_RIGHT:
+ style |= wxSL_VERTICAL;
+ break;
+
+ case wxSL_TOP:
+ case wxSL_BOTTOM:
+ style |= wxSL_HORIZONTAL;
+ break;
+
+ case 0:
+ // no specific direction, do we have at least the orientation?
+ if ( !(style & (wxSL_HORIZONTAL | wxSL_VERTICAL)) )
+ {
+ // no, choose default
+ style |= wxSL_BOTTOM | wxSL_HORIZONTAL;
+ }
+ };
+
+ wxASSERT_MSG( !(style & wxSL_VERTICAL) || !(style & wxSL_HORIZONTAL),
+ wxT("incompatible slider direction and orientation") );
+
+
+ // initialize everything
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
+
+ // ensure that we have correct values for GetLabelsSize()
+ m_rangeMin = minValue;
+ m_rangeMax = maxValue;
+
+ // create the labels first, so that our DoGetBestSize() could take them
+ // into account
+ //
+ // note that we could simply create 3 wxStaticTexts here but it could
+ // result in some observable side effects at wx level (e.g. the parent of
+ // wxSlider would have 3 more children than expected) and so we prefer not
+ // to do it like this
+ if ( m_windowStyle & wxSL_LABELS )
+ {
+ m_labels = new wxSubwindows(SliderLabel_Last);
+
+ HWND hwndParent = GetHwndOf(parent);
+ for ( size_t n = 0; n < SliderLabel_Last; n++ )
{
- 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);
+ wxWindowIDRef lblid = NewControlId();
+
+ HWND wnd = ::CreateWindow
+ (
+ wxT("STATIC"),
+ NULL,
+ WS_CHILD | WS_VISIBLE | SS_CENTER,
+ 0, 0, 0, 0,
+ hwndParent,
+ (HMENU)wxUIntToPtr(lblid.GetValue()),
+ wxGetInstance(),
+ NULL
+ );
+
+ m_labels->Set(n, wnd, lblid);
}
- }
- }
-#else
- // 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);
+ m_labels->SetFont(GetFont());
}
- }
-#endif
- SetSize(x, y, width, height);
- SetValue(value);
+ // now create the main control too
+ if ( !MSWCreateControl(TRACKBAR_CLASS, wxEmptyString, pos, size) )
+ return false;
+
+ // and initialize everything
+ SetRange(minValue, maxValue);
+ SetValue(value);
+ SetPageSize( wxMax(1, (maxValue - minValue)/10) );
- return TRUE;
+ // we need to position the labels correctly if we have them and if
+ // SetSize() hadn't been called before (when best size was determined by
+ // MSWCreateControl()) as in this case they haven't been put in place yet
+ if ( m_labels && size.x != wxDefaultCoord && size.y != wxDefaultCoord )
+ {
+ SetSize(size);
+ }
+
+ return true;
}
-void wxSlider::MSWOnVScroll(const WXWORD wParam, const WXWORD pos, const WXHWND control)
+WXDWORD wxSlider::MSWGetStyle(long style, WXDWORD *exstyle) const
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- int position = 0; // Dummy - not used in this mode
-#else
- int position = ::GetScrollPos((HWND)control, SB_CTL);
-#endif
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
- int nScrollInc;
- int scrollEvent = 0;
- 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;
+ // TBS_HORZ, TBS_RIGHT and TBS_BOTTOM are 0 but do include them for clarity
+ msStyle |= style & wxSL_VERTICAL ? TBS_VERT : TBS_HORZ;
- default:
- nScrollInc = 0;
- return;
+ if ( style & wxSL_BOTH )
+ {
+ // this fully specifies the style combined with TBS_VERT/HORZ above
+ msStyle |= TBS_BOTH;
}
-
-#if !(WIN95 && USE_TRACK_BAR)
- if (nScrollInc != 0)
-#endif
+ else // choose one direction
{
-
-#if defined(__WIN95__) && USE_TRACK_BAR
- int newPos = (int)::SendMessage((HWND) control, TBM_GETPOS, 0, 0);
-#else
- int newPos = position + nScrollInc;
-#endif
- if (!(newPos < GetMin() || newPos > GetMax()))
- {
- SetValue(newPos);
-
- wxScrollEvent event(scrollEvent, m_windowId);
- event.SetPosition(newPos);
- event.SetEventObject( this );
- GetEventHandler()->ProcessEvent(event);
- }
+ if ( style & wxSL_LEFT )
+ msStyle |= TBS_LEFT;
+ else if ( style & wxSL_RIGHT )
+ msStyle |= TBS_RIGHT;
+ else if ( style & wxSL_TOP )
+ msStyle |= TBS_TOP;
+ else if ( style & wxSL_BOTTOM )
+ msStyle |= TBS_BOTTOM;
}
-}
-void wxSlider::MSWOnHScroll(const WXWORD wParam, const WXWORD pos, const WXHWND control)
-{
- MSWOnVScroll(wParam, pos, control);
+ if ( style & wxSL_AUTOTICKS )
+ msStyle |= TBS_AUTOTICKS;
+ else
+ msStyle |= TBS_NOTICKS;
+
+ if ( style & wxSL_SELRANGE )
+ msStyle |= TBS_ENABLESELRANGE;
+
+ return msStyle;
}
-wxSlider::~wxSlider(void)
+wxSlider::~wxSlider()
{
- if (m_staticMin)
- DestroyWindow((HWND) m_staticMin);
- if (m_staticMax)
- DestroyWindow((HWND) m_staticMax);
- if (m_staticValue)
- DestroyWindow((HWND) m_staticValue);
+ delete m_labels;
}
-int wxSlider::GetValue(void) const
+// ----------------------------------------------------------------------------
+// event handling
+// ----------------------------------------------------------------------------
+
+bool wxSlider::MSWOnScroll(int WXUNUSED(orientation),
+ WXWORD wParam,
+ WXWORD WXUNUSED(pos),
+ WXHWND control)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- return ::SendMessage((HWND) GetHWND(), TBM_GETPOS, 0, 0);
-#else
- return ::GetScrollPos((HWND) GetHWND(), SB_CTL);
-#endif
+ wxEventType scrollEvent;
+ switch ( wParam )
+ {
+ case SB_TOP:
+ scrollEvent = wxEVT_SCROLL_TOP;
+ break;
+
+ case SB_BOTTOM:
+ scrollEvent = wxEVT_SCROLL_BOTTOM;
+ break;
+
+ case SB_LINEUP:
+ scrollEvent = wxEVT_SCROLL_LINEUP;
+ break;
+
+ case SB_LINEDOWN:
+ scrollEvent = wxEVT_SCROLL_LINEDOWN;
+ break;
+
+ case SB_PAGEUP:
+ scrollEvent = wxEVT_SCROLL_PAGEUP;
+ break;
+
+ case SB_PAGEDOWN:
+ scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+ break;
+
+ case SB_THUMBTRACK:
+ scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+ m_isDragging = true;
+ break;
+
+ case SB_THUMBPOSITION:
+ if ( m_isDragging )
+ {
+ scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+ m_isDragging = false;
+ }
+ else
+ {
+ // this seems to only happen when the mouse wheel is used: in
+ // this case, as it might be unexpected to get THUMBRELEASE
+ // without preceding THUMBTRACKs, we don't generate it at all
+ // but generate CHANGED event because the control itself does
+ // not send us SB_ENDSCROLL for whatever reason when mouse
+ // wheel is used
+ scrollEvent = wxEVT_SCROLL_CHANGED;
+ }
+ break;
+
+ case SB_ENDSCROLL:
+ scrollEvent = wxEVT_SCROLL_CHANGED;
+ break;
+
+ default:
+ // unknown scroll event?
+ return false;
+ }
+
+ int newPos = ValueInvertOrNot((int) ::SendMessage((HWND) control, TBM_GETPOS, 0, 0));
+ 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 );
+ HandleWindowEvent(event);
+
+ wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
+ cevent.SetInt( newPos );
+ cevent.SetEventObject( this );
+
+ return HandleWindowEvent( cevent );
}
-void wxSlider::SetValue(const int value)
+void wxSlider::Command (wxCommandEvent & event)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage((HWND) GetHWND(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)value);
-#else
- ::SetScrollPos((HWND) GetHWND(), SB_CTL, value, TRUE);
-#endif
- if (m_staticValue)
- {
- sprintf(wxBuffer, "%d", value);
- SetWindowText((HWND) m_staticValue, wxBuffer);
- }
+ SetValue (event.GetInt());
+ ProcessCommand (event);
}
-void wxSlider::GetSize(int *width, int *height) const
-{
- RECT rect;
- rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
+// ----------------------------------------------------------------------------
+// geometry stuff
+// ----------------------------------------------------------------------------
- wxFindMaxSize(GetHWND(), &rect);
+wxRect wxSlider::GetBoundingBox() const
+{
+ // take care not to call our own functions which would call us recursively
+ int x, y, w, h;
+ wxSliderBase::DoGetPosition(&x, &y);
+ wxSliderBase::DoGetSize(&w, &h);
- if (m_staticMin)
- wxFindMaxSize(m_staticMin, &rect);
- if (m_staticMax)
- wxFindMaxSize(m_staticMax, &rect);
- if (m_staticValue)
- wxFindMaxSize(m_staticValue, &rect);
+ wxRect rect(x, y, w, h);
+ if ( m_labels )
+ {
+ wxRect lrect = m_labels->GetBoundingBox();
+ GetParent()->ScreenToClient(&lrect.x, &lrect.y);
+ rect.Union(lrect);
+ }
- *width = rect.right - rect.left;
- *height = rect.bottom - rect.top;
+ return rect;
}
-void wxSlider::GetPosition(int *x, int *y) const
+void wxSlider::DoGetSize(int *width, int *height) const
{
- wxWindow *parent = GetParent();
- RECT rect;
- rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
+ wxRect rect = GetBoundingBox();
- wxFindMaxSize(GetHWND(), &rect);
-
- if (m_staticMin)
- wxFindMaxSize(m_staticMin, &rect);
- if (m_staticMax)
- wxFindMaxSize(m_staticMax, &rect);
- if (m_staticValue)
- wxFindMaxSize(m_staticValue, &rect);
+ if ( width )
+ *width = rect.width;
+ if ( height )
+ *height = rect.height;
+}
- // 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);
+void wxSlider::DoGetPosition(int *x, int *y) const
+{
+ wxRect rect = GetBoundingBox();
- *x = point.x;
- *y = point.y;
+ if ( x )
+ *x = rect.x;
+ if ( y )
+ *y = rect.y;
}
-void wxSlider::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags)
+int wxSlider::GetLabelsSize(int *widthMin, int *widthMax) const
{
- int x1 = x;
- int y1 = y;
- int w1 = width;
- int h1 = height;
+ if ( widthMin && widthMax )
+ {
+ *widthMin = GetTextExtent(Format(m_rangeMin)).x;
+ *widthMax = GetTextExtent(Format(m_rangeMax)).x;
- int currentX, currentY;
- GetPosition(¤tX, ¤tY);
- if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- x1 = currentX;
- if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- y1 = currentY;
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ wxSwap(*widthMin, *widthMax);
+ }
+ }
- char buf[300];
+ return HasFlag(wxSL_LABELS) ? GetCharHeight() : 0;
+}
- int x_offset = x;
- int y_offset = y;
+void wxSlider::DoMoveWindow(int x, int y, int width, int height)
+{
+ // all complications below are because we need to position the labels,
+ // without them everything is easy
+ if ( !m_labels )
+ {
+ wxSliderBase::DoMoveWindow(x, y, width, height);
+ return;
+ }
- int cx; // slider,min,max sizes
- int cy;
- float cyf;
+ int minLabelWidth,
+ maxLabelWidth;
+ const int labelHeight = GetLabelsSize(&minLabelWidth, &maxLabelWidth);
+ const int longestLabelWidth = wxMax(minLabelWidth, maxLabelWidth);
+ if ( !HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ minLabelWidth =
+ maxLabelWidth = 0;
+ }
- wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
+ int tickOffset = 0;
+ if ( HasFlag(wxSL_TICKS))
+ tickOffset = TICK;
+ if ( HasFlag(wxSL_BOTH))
+ tickOffset *= 2;
- if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
- {
- if ( m_windowStyle & wxSL_LABELS )
- {
- float min_len = 0.0;
+ // be careful to position the slider itself after moving the labels as
+ // otherwise our GetBoundingBox(), which is called from WM_SIZE handler,
+ // would return a wrong result and wrong size would be cached internally
+ if ( HasFlag(wxSL_VERTICAL) )
+ {
+ int labelOffset = 0;
+ int holdTopX;
+ int holdBottomX;
+ int xLabel = (wxMax((THUMB + (BORDERPAD * 2)), longestLabelWidth) / 2) -
+ (longestLabelWidth / 2) + x;
+ if ( HasFlag(wxSL_LEFT) )
+ {
+ holdTopX = xLabel;
+ holdBottomX = xLabel - (abs(maxLabelWidth - minLabelWidth) / 2);
+ }
+ else // wxSL_RIGHT
+ {
+ holdTopX = xLabel + longestLabelWidth + (abs(maxLabelWidth - minLabelWidth) / 2);
+ holdBottomX = xLabel + longestLabelWidth;
- GetWindowText((HWND) m_staticMin, buf, 300);
- GetTextExtent(buf, &min_len, &cyf,NULL,NULL, GetFont());
+ labelOffset = longestLabelWidth + HGAP;
+ }
- float max_len = 0.0;
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ wxSwap(holdTopX, holdBottomX);
+ }
+
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
+ holdTopX,
+ y,
+ minLabelWidth, labelHeight);
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
+ holdBottomX,
+ y + height - labelHeight,
+ maxLabelWidth, labelHeight);
+ }
- 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
-#if defined(__WIN95__)
- // The height needs to be a bit bigger under Win95 if using native
- // 3D effects.
- valueHeight = (int) (valueHeight * 1.5) ;
-#endif
- MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
- x_offset += new_width + cx;
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
+ x + ( HasFlag(wxSL_LEFT) ? THUMB + tickOffset + HGAP : 0 ),
+ y + (height - labelHeight)/2,
+ longestLabelWidth, labelHeight);
+ }
+
+ // position the slider itself along the left/right edge
+ wxSliderBase::DoMoveWindow(
+ x + labelOffset,
+ y + labelHeight,
+ THUMB + tickOffset + HGAP,
+ height - (labelHeight * 2));
}
+ else // horizontal
+ {
+ int yLabelMinMax =
+ (y + ((THUMB + tickOffset) / 2)) - (labelHeight / 2);
+ int xLabelValue =
+ x + minLabelWidth +
+ ((width - (minLabelWidth + maxLabelWidth)) / 2) -
+ (longestLabelWidth / 2);
- MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
- x_offset += (int)(min_len + cx);
+ int ySlider = y;
- int slider_length = (int)(w1 - x_offset - max_len - cx);
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Value],
+ xLabelValue,
+ y + (HasFlag(wxSL_BOTTOM) ? 0 : THUMB + tickOffset),
+ longestLabelWidth, labelHeight);
+
+ if ( HasFlag(wxSL_BOTTOM) )
+ {
+ ySlider += labelHeight;
+ yLabelMinMax += labelHeight;
+ }
+ }
-#if defined(__WIN95__) && USE_TRACK_BAR
- int slider_height = h1;
- if (slider_height < 0 )
- slider_height = 20;
-#else
- int slider_height = cy;
-#endif
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ {
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Min],
+ x,
+ yLabelMinMax,
+ minLabelWidth, labelHeight);
+ DoMoveSibling((HWND)(*m_labels)[SliderLabel_Max],
+ x + width - maxLabelWidth,
+ yLabelMinMax,
+ maxLabelWidth, labelHeight);
+ }
- // Slider must have a minimum/default length/height
- if (slider_length < 100)
- slider_length = 100;
+ // position the slider itself along the top/bottom edge
+ wxSliderBase::DoMoveWindow(
+ x + minLabelWidth + VGAP,
+ ySlider,
+ width - (minLabelWidth + maxLabelWidth + (VGAP*2)),
+ THUMB + tickOffset);
+ }
+}
- MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_length, slider_height, TRUE);
- x_offset += slider_length + cx;
+wxSize wxSlider::DoGetBestSize() const
+{
+ // this value is arbitrary:
+ static const int length = 100;
- 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 )
- {
- float min_len;
- GetWindowText((HWND) m_staticMin, buf, 300);
- GetTextExtent(buf, &min_len, &cyf,NULL,NULL,GetFont());
-
- float max_len;
- GetWindowText((HWND) m_staticMax, buf, 300);
- GetTextExtent(buf, &max_len, &cyf,NULL,NULL, GetFont());
-
- if (m_staticValue)
+ int *width;
+ wxSize size;
+ if ( HasFlag(wxSL_VERTICAL) )
{
- 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;
+ size.x = THUMB;
+ size.y = length;
+ width = &size.x;
-#if defined(__WIN95__)
- // The height needs to be a bit bigger under Win95 if using native
- // 3D effects.
- valueHeight = (int) (valueHeight * 1.5) ;
-#endif
+ if ( m_labels )
+ {
+ int widthMin,
+ widthMax;
+ int hLabel = GetLabelsSize(&widthMin, &widthMax);
- MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
- y_offset += valueHeight;
+ // account for the labels
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+ size.x += HGAP + wxMax(widthMin, widthMax);
+
+ // labels are indented relative to the slider itself
+ size.y += hLabel;
+ }
}
+ else // horizontal
+ {
+ size.x = length;
+ size.y = THUMB;
+ width = &size.y;
- 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);
-#if defined(__WIN95__) && USE_TRACK_BAR
- int slider_width = w1;
- if (slider_width < 0 )
- slider_width = 20;
-#else
- // Use character height as an estimate of slider width (yes, width)
- int slider_width = cy;
-#endif
+ if ( m_labels )
+ {
+ int labelSize = GetLabelsSize();
- // Slider must have a minimum/default length
- if (slider_length < 100)
- slider_length = 100;
+ // Min/max labels are compensated by the ticks so we don't need
+ // extra space for them if we're also showing ticks.
+ if ( HasFlag(wxSL_MIN_MAX_LABELS) && !HasFlag(wxSL_TICKS) )
+ size.y += labelSize;
- MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_width, slider_length, TRUE);
- y_offset += slider_length;
+ // The value label is always on top of the control and so does need
+ // extra space in any case.
+ if ( HasFlag(wxSL_VALUE_LABEL) )
+ size.y += labelSize;
+ }
+ }
- MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
+ // need extra space to show ticks
+ if ( HasFlag(wxSL_TICKS) )
+ {
+ *width += TICK;
+ // and maybe twice as much if we show them on both sides
+ if ( HasFlag(wxSL_BOTH) )
+ *width += TICK;
}
- else
- {
- // No labels
- if ( w1 < 0 )
- w1 = 20;
- if ( h1 < 0 )
- h1 = 200;
- MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
- }
- }
-
-/*
-#if WXWIN_COMPATIBILITY
- GetEventHandler()->OldOnSize(width, height);
-#else
- wxSizeEvent event(wxSize(width, height), m_windowId);
- event.eventObject = this;
- GetEventHandler()->ProcessEvent(event);
-#endif
-*/
+ return size;
+}
+
+// ----------------------------------------------------------------------------
+// slider-specific methods
+// ----------------------------------------------------------------------------
+int wxSlider::GetValue() const
+{
+ return ValueInvertOrNot(::SendMessage(GetHwnd(), TBM_GETPOS, 0, 0));
}
-void wxSlider::SetRange(const int minValue, const int maxValue)
+void wxSlider::SetValue(int value)
{
- m_rangeMin = minValue;
- m_rangeMax = maxValue;
+ ::SendMessage(GetHwnd(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)ValueInvertOrNot(value));
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage((HWND) GetHWND(), TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
-#else
- ::SetScrollRange((HWND) GetHWND(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
-#endif
- 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);
- }
+ if ( m_labels )
+ {
+ ::SetWindowText((*m_labels)[SliderLabel_Value], Format(value).wx_str());
+ }
}
-WXHBRUSH wxSlider::OnCtlColor(const WXHDC pDC, const WXHWND pWnd, const WXUINT nCtlColor,
- WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+void wxSlider::SetRange(int minValue, int maxValue)
{
- if ( nCtlColor == CTLCOLOR_SCROLLBAR )
- return 0;
+ // Remember the old logical value if we need to update the physical control
+ // value after changing its range in wxSL_INVERSE case (and avoid an
+ // unnecessary call to GetValue() otherwise as it's just not needed).
+ const int valueOld = HasFlag(wxSL_INVERSE) ? GetValue() : 0;
- // Otherwise, it's a static
- if (GetParent()->GetTransparentBackground())
- SetBkMode((HDC) pDC, TRANSPARENT);
- else
- SetBkMode((HDC) pDC, OPAQUE);
+ m_rangeMin = minValue;
+ m_rangeMax = maxValue;
- ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
- ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
+ ::SendMessage(GetHwnd(), TBM_SETRANGEMIN, TRUE, m_rangeMin);
+ ::SendMessage(GetHwnd(), TBM_SETRANGEMAX, TRUE, m_rangeMax);
- wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+ if ( m_labels )
+ {
+ ::SetWindowText((*m_labels)[SliderLabel_Min],
+ Format(ValueInvertOrNot(m_rangeMin)).wx_str());
+ ::SetWindowText((*m_labels)[SliderLabel_Max],
+ Format(ValueInvertOrNot(m_rangeMax)).wx_str());
+ }
- // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
- // has a zero usage count.
-// backgroundBrush->RealizeResource();
- return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+ // When emulating wxSL_INVERSE style in wxWidgets, we need to update the
+ // value after changing the range to ensure that the value seen by the user
+ // code, i.e. the one returned by GetValue(), does not change.
+ if ( HasFlag(wxSL_INVERSE) )
+ {
+ ::SendMessage(GetHwnd(), TBM_SETPOS, TRUE, ValueInvertOrNot(valueOld));
+ }
}
-// For trackbars only
-void wxSlider::SetTickFreq(const int n, const int pos)
+void wxSlider::DoSetTickFreq(int n)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- m_tickFreq = n;
- ::SendMessage( (HWND) GetHWND(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
-#endif
+ m_tickFreq = n;
+ ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) 0 );
}
-void wxSlider::SetPageSize(const int pageSize)
+void wxSlider::SetPageSize(int pageSize)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
-#endif
- m_pageSize = pageSize;
+ ::SendMessage( GetHwnd(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
+ m_pageSize = pageSize;
}
-int wxSlider::GetPageSize(void) const
+int wxSlider::GetPageSize() const
{
- return m_pageSize;
+ return m_pageSize;
}
-void wxSlider::ClearSel(void)
+void wxSlider::ClearSel()
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0 );
-#endif
+ ::SendMessage(GetHwnd(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0);
}
-void wxSlider::ClearTicks(void)
+void wxSlider::ClearTicks()
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0 );
-#endif
+ ::SendMessage(GetHwnd(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0);
}
-void wxSlider::SetLineSize(const int lineSize)
+void wxSlider::SetLineSize(int lineSize)
{
- m_lineSize = lineSize;
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize );
-#endif
+ m_lineSize = lineSize;
+ ::SendMessage(GetHwnd(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize);
}
-int wxSlider::GetLineSize(void) const
+int wxSlider::GetLineSize() const
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETLINESIZE, (WPARAM) 0, (LPARAM) 0 );
-#else
- return m_lineSize;
-#endif
+ return (int)::SendMessage(GetHwnd(), TBM_GETLINESIZE, 0, 0);
}
-int wxSlider::GetSelEnd(void) const
+int wxSlider::GetSelEnd() const
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- return (int) ::SendMessage( (HWND) GetHWND(), TBM_SETSELEND, (WPARAM) 0, (LPARAM) 0 );
-#else
- return 0;
-#endif
+ return (int)::SendMessage(GetHwnd(), TBM_GETSELEND, 0, 0);
}
-int wxSlider::GetSelStart(void) const
+int wxSlider::GetSelStart() const
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETSELSTART, (WPARAM) 0, (LPARAM) 0 );
-#else
- return 0;
-#endif
+ return (int)::SendMessage(GetHwnd(), TBM_GETSELSTART, 0, 0);
}
-void wxSlider::SetSelection(const int minPos, const int maxPos)
+void wxSlider::SetSelection(int minPos, int maxPos)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_SETSEL, (WPARAM) TRUE, (LPARAM) MAKELONG( minPos, maxPos) );
-#endif
+ ::SendMessage(GetHwnd(), TBM_SETSEL,
+ (WPARAM) TRUE /* redraw */,
+ (LPARAM) MAKELONG( minPos, maxPos) );
}
-void wxSlider::SetThumbLength(const int len)
+void wxSlider::SetThumbLength(int len)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0 );
-#endif
+ ::SendMessage(GetHwnd(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0);
}
-int wxSlider::GetThumbLength(void) const
+int wxSlider::GetThumbLength() const
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETTHUMBLENGTH, (WPARAM) 0, (LPARAM) 0 );
-#else
- return 0;
-#endif
+ return (int)::SendMessage( GetHwnd(), TBM_GETTHUMBLENGTH, 0, 0);
}
-void wxSlider::SetTick(const int tickPos)
+void wxSlider::SetTick(int tickPos)
{
-#if defined(__WIN95__) && USE_TRACK_BAR
- ::SendMessage( (HWND) GetHWND(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
-#endif
+ ::SendMessage( GetHwnd(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
}
-bool wxSlider::ContainsHWND(WXHWND hWnd) const
-{
- return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
-}
+// ----------------------------------------------------------------------------
+// composite control methods
+// ----------------------------------------------------------------------------
-#if WXWIN_COMPATIBILITY
-// Backward compatibility
-void wxSlider::OnScroll(wxScrollEvent& event)
+WXHWND wxSlider::GetStaticMin() const
{
- int oldEvent = event.GetEventType();
- event.SetEventType( wxEVT_COMMAND_SLIDER_UPDATED );
- if ( !GetEventHandler()->ProcessEvent(event) )
- {
- event.SetEventType( oldEvent );
- if (!GetParent()->GetEventHandler()->ProcessEvent(event))
- event.Skip();
- }
+ return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Min] : NULL;
}
-#endif
-void wxSlider::Command (wxCommandEvent & event)
+WXHWND wxSlider::GetStaticMax() const
{
- SetValue (event.GetInt());
- ProcessCommand (event);
+ return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Max] : NULL;
}
-bool wxSlider::Show(const bool show)
+WXHWND wxSlider::GetEditValue() const
{
- 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;
+ return m_labels ? (WXHWND)(*m_labels)[SliderLabel_Value] : NULL;
}
+WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxSlider, wxSliderBase, m_labels)
+#endif // wxUSE_SLIDER
projects / wxWidgets.git / blobdiff