make sure we catch invalid control refs better

[wxWidgets.git] / src / mac / carbon / scrolbar.cpp

diff --git a/src/mac/carbon/scrolbar.cpp b/src/mac/carbon/scrolbar.cpp
index 54df1811666b81aea8a5c83c27507e8fd2250ee8..5f268188b9e3e1e76f676d2aaa81f17098b718bf 100644 (file)
--- a/src/mac/carbon/scrolbar.cpp
+++ b/src/mac/carbon/scrolbar.cpp
@@ -1,78 +1,243 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        scrolbar.cpp
+// Name:        src/mac/carbon/scrolbar.cpp

 // Purpose:     wxScrollBar
 // Purpose:     wxScrollBar

-// Author:      AUTHOR
+// Author:      Stefan Csomor

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     1998-01-01

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:       wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "scrolbar.h"
-#endif
+#include "wx/wxprec.h"

 
 #include "wx/scrolbar.h"
 
 
 #include "wx/scrolbar.h"
 

-#if !USE_SHARED_LIBRARY
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/settings.h"
+#endif
+
+#include "wx/mac/uma.h"
+

 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
 
 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
 

-#endif
+BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
+END_EVENT_TABLE()
+

 
 

-// Scrollbar
-bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
-           const wxPoint& pos,
-           const wxSize& size, long style,
-           const wxValidator& validator,
-           const wxString& name)
+bool wxScrollBar::Create( wxWindow *parent,
+    wxWindowID id,
+    const wxPoint& pos,
+    const wxSize& size,
+    long style,
+    const wxValidator& validator,
+    const wxString& name )

 {
 {

-    if (!parent)
-        return FALSE;
-    parent->AddChild(this);
-    SetName(name);
-       SetValidator(validator);
-    
-    m_windowStyle = style;
-
-    if ( id == -1 )
-           m_windowId = (int)NewControlId();
-    else
-           m_windowId = id;
+    m_macIsUserPane = false;

 
 

-    // TODO create scrollbar
-    return TRUE;
+    if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
+        return false;
+
+    Rect bounds = wxMacGetBoundsForControl( this, pos, size );
+
+    m_peer = new wxMacControl( this );
+    OSStatus err = CreateScrollBarControl(
+        MAC_WXHWND(parent->MacGetTopLevelWindowRef()), &bounds,
+        0, 0, 100, 1, true /* liveTracking */,
+        GetwxMacLiveScrollbarActionProc(),
+        m_peer->GetControlRefAddr() );
+    verify_noerr( err );
+
+    MacPostControlCreate( pos, size );
+
+    return true;

 }
 
 wxScrollBar::~wxScrollBar()
 {
 }
 
 }
 
 wxScrollBar::~wxScrollBar()
 {
 }
 

-void wxScrollBar::SetThumbPosition(int viewStart)
+void wxScrollBar::SetThumbPosition( int viewStart )

 {
 {

-    // TODO
+    m_peer->SetValue( viewStart );

 }
 
 int wxScrollBar::GetThumbPosition() const
 {
 }
 
 int wxScrollBar::GetThumbPosition() const
 {

-    // TODO
-    return 0;
+    return m_peer->GetValue();

 }
 
 }
 

-void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
-    bool refresh)
+void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize, bool refresh )

 {
 {

-    m_viewSize = pageSize;
-    m_pageSize = thumbSize;
+    m_pageSize = pageSize;
+    m_viewSize = thumbSize;

     m_objectSize = range;
 
     m_objectSize = range;
 

-    // TODO
+   int range1 = wxMax( (m_objectSize - m_viewSize), 0 );
+
+    m_peer->SetMinimum( 0 );
+    m_peer->SetMaximum( range1 );
+    m_peer->SetValue( position );
+    m_peer->SetViewSize( m_viewSize );
+}
+
+void wxScrollBar::Command( wxCommandEvent& event )
+{
+    SetThumbPosition( event.GetInt() );
+    ProcessCommand( event );

 }
 
 }
 

+void wxScrollBar::MacHandleControlClick( WXWidget control, wxInt16 controlpart, bool mouseStillDown )
+{
+    int position = m_peer->GetValue();
+    int minPos = m_peer->GetMinimum();
+    int maxPos = m_peer->GetMaximum();
+
+    wxEventType scrollEvent = wxEVT_NULL;
+    int nScrollInc = 0;
+
+    // all events have already been reported during mouse down, except for THUMBRELEASE
+    if ( !mouseStillDown && controlpart != kControlIndicatorPart )
+        return;
+
+    switch ( controlpart )
+    {
+    case kControlUpButtonPart:
+        nScrollInc = -1;
+        scrollEvent = wxEVT_SCROLL_LINEUP;
+        break;
+
+    case kControlDownButtonPart:
+        nScrollInc = 1;
+        scrollEvent = wxEVT_SCROLL_LINEDOWN;
+        break;
+
+    case kControlPageUpPart:
+        nScrollInc = -m_pageSize;
+        scrollEvent = wxEVT_SCROLL_PAGEUP;
+        break;
+
+    case kControlPageDownPart:
+        nScrollInc = m_pageSize;
+        scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+        break;
+
+    case kControlIndicatorPart:
+        nScrollInc = 0;
+        if ( mouseStillDown )
+            scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+        else
+            scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+        break;
+
+    default:
+        wxFAIL_MSG(wxT("unknown scrollbar selector"));
+        break;
+    }
+
+    int new_pos = position + nScrollInc;
+
+    if (new_pos < minPos)
+        new_pos = minPos;
+    else if (new_pos > maxPos)
+        new_pos = maxPos;

 
 

-void wxScrollBar::Command(wxCommandEvent& event)
+    if ( nScrollInc )
+        SetThumbPosition( new_pos );
+
+    wxScrollEvent event( scrollEvent, m_windowId );
+    if ( m_windowStyle & wxHORIZONTAL )
+        event.SetOrientation( wxHORIZONTAL );
+    else
+        event.SetOrientation( wxVERTICAL );
+
+    event.SetPosition( new_pos );
+    event.SetEventObject( this );
+
+    wxWindow* window = GetParent();
+    if (window && window->MacIsWindowScrollbar( this ))
+        // this is hardcoded
+        window->MacOnScroll( event );
+    else
+        GetEventHandler()->ProcessEvent( event );
+}
+
+wxInt32 wxScrollBar::MacControlHit( WXEVENTHANDLERREF handler, WXEVENTREF mevent )

 {
 {

-    SetThumbPosition(event.m_commandInt);
-    ProcessCommand(event);
+    int position = m_peer->GetValue();
+    int minPos = m_peer->GetMinimum();
+    int maxPos = m_peer->GetMaximum();
+
+    wxEventType scrollEvent = wxEVT_NULL;
+    int nScrollInc = 0;
+
+    wxMacCarbonEvent cEvent( (EventRef)mevent );
+    ControlPartCode controlpart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPart, typeControlPartCode);
+
+    // all events have already been reported during mouse down, except for THUMBRELEASE
+    // NB: this may need to be reviewed in light of the fact that scroll wheel events
+    // aren't being handled properly
+    if ( controlpart != kControlIndicatorPart )
+        return eventNotHandledErr;
+
+    switch ( controlpart )
+    {
+    case kControlIndicatorPart:
+        nScrollInc = 0;
+        scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+        break;
+
+    default:
+        wxFAIL_MSG(wxT("unknown scrollbar selector"));
+        break;
+    }
+
+    int new_pos = position + nScrollInc;
+
+    if (new_pos < minPos)
+        new_pos = minPos;
+    else if (new_pos > maxPos)
+        new_pos = maxPos;
+
+    if ( nScrollInc )
+        SetThumbPosition( new_pos );
+
+    wxScrollEvent event( scrollEvent, m_windowId );
+    if ( m_windowStyle & wxHORIZONTAL )
+        event.SetOrientation( wxHORIZONTAL );
+    else
+        event.SetOrientation( wxVERTICAL );
+
+    event.SetPosition( new_pos );
+    event.SetEventObject( this );
+    wxWindow* window = GetParent();
+    if (window && window->MacIsWindowScrollbar( this ))
+        // this is hardcoded
+        window->MacOnScroll( event );
+    else
+        GetEventHandler()->ProcessEvent( event );
+
+    return noErr;

 }
 
 }
 

+
+wxSize wxScrollBar::DoGetBestSize() const
+{
+    int w = 100;
+    int h = 100;
+
+    if ( IsVertical() )
+    {
+        w = wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
+    }
+    else
+    {
+        h = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
+    }
+
+    wxSize best(w, h);
+    CacheBestSize(best);
+    return best;
+}