mouse-capture fix

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

diff --git a/src/mac/carbon/region.cpp b/src/mac/carbon/region.cpp
index 6c1ef13da2dc1b969ca3470b7a9cef84c670fb1b..3fb09a1ad27f2c20dae9ec455e599cf55049fe8b 100644 (file)
--- a/src/mac/carbon/region.cpp
+++ b/src/mac/carbon/region.cpp
@@ -1,25 +1,25 @@
 /////////////////////////////////////////////////////////////////////////////
 // File:      region.cpp
 // Purpose:   Region class
 /////////////////////////////////////////////////////////////////////////////
 // File:      region.cpp
 // Purpose:   Region class

-// Author:    Markus Holzem/Julian Smart/Stefan Csomor
+// Author:    Stefan Csomor

 // Created:   Fri Oct 24 10:46:34 MET 1997
 // Created:   Fri Oct 24 10:46:34 MET 1997

-// RCS-ID:       $Id$
-// Copyright: (c) 1997 Markus Holzem/Julian Smart/Stefan Csomor
+// RCS-ID:    $Id$
+// Copyright: (c) 1997 Stefan Csomor

 // Licence:   wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:   wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "region.h"
 #endif
 
 #pragma implementation "region.h"
 #endif
 

+#include "wx/wxprec.h"
+

 #include "wx/region.h"
 #include "wx/gdicmn.h"
 #include "wx/mac/uma.h"
 
 #include "wx/region.h"
 #include "wx/gdicmn.h"
 #include "wx/mac/uma.h"
 

-#if !USE_SHARED_LIBRARY
-       IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
-       IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
-#endif
+IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)

 
 //-----------------------------------------------------------------------------
 // wxRegionRefData implementation
 
 //-----------------------------------------------------------------------------
 // wxRegionRefData implementation


@@ -43,7 +43,7 @@ public:
     {
         DisposeRgn( m_macRgn ) ;
     }
     {
         DisposeRgn( m_macRgn ) ;
     }

-    RgnHandle  m_macRgn ;
+    RgnHandle    m_macRgn ;

 };
 
 #define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
 };
 
 #define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)


@@ -85,6 +85,31 @@ wxRegion::wxRegion(const wxRect& rect)
     SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x+rect.width , rect.y+rect.height ) ;
 }
 
     SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x+rect.width , rect.y+rect.height ) ;
 }
 

+wxRegion::wxRegion(size_t n, const wxPoint *points, int WXUNUSED(fillStyle))
+{
+    m_refData = new wxRegionRefData;
+
+    OpenRgn();
+
+    wxCoord x1, x2 , y1 , y2 ;
+    x2 = x1 = points[0].x ;
+    y2 = y1 = points[0].y ;
+    ::MoveTo(x1,y1);
+    for (size_t i = 1; i < n; i++)
+    {
+        x2 = points[i].x ;
+        y2 = points[i].y ;
+        ::LineTo(x2, y2);
+    }
+    // close the polyline if necessary
+    if ( x1 != x2 || y1 != y2 )
+    {
+        ::LineTo(x1,y1 ) ;
+    }
+    ClosePoly();
+    CloseRgn( M_REGION ) ;
+}
+

 /*!
  * Destroy the region.
  */
 /*!
  * Destroy the region.
  */


@@ -103,23 +128,39 @@ void wxRegion::Clear()
     UnRef();
 }
 
     UnRef();
 }
 

+// Move the region
+bool wxRegion::Offset(wxCoord x, wxCoord y)
+{
+    wxCHECK_MSG( M_REGION, false, _T("invalid wxRegion") );
+
+    if ( !x && !y )
+    {
+        // nothing to do
+        return true;
+    }
+
+    OffsetRgn( M_REGION , x , y ) ;
+    return true ;
+}
+
+

 //! Combine rectangle (x, y, w, h) with this.
 bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
 {
 //! Combine rectangle (x, y, w, h) with this.
 bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
 {

-       // Don't change shared data
-       if (!m_refData) 
-       {
-               m_refData = new wxRegionRefData();
-       } 
-       else if (m_refData->GetRefCount() > 1) 
-       {
-               wxRegionRefData* ref = (wxRegionRefData*)m_refData;
-               UnRef();
-               m_refData = new wxRegionRefData(*ref);
-       }
+    // Don't change shared data
+    if (!m_refData) 
+    {
+        m_refData = new wxRegionRefData();
+    } 
+    else if (m_refData->GetRefCount() > 1) 
+    {
+        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
+        UnRef();
+        m_refData = new wxRegionRefData(*ref);
+    }

     RgnHandle rgn = NewRgn() ;
     RgnHandle rgn = NewRgn() ;

-               SetRectRgn( rgn , x , y, x+width,y + height ) ;
-               
+        SetRectRgn( rgn , x , y, x+width,y + height ) ;
+        

     switch (op)
     {
         case wxRGN_AND:
     switch (op)
     {
         case wxRGN_AND:


@@ -136,11 +177,11 @@ bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
             break ;
         case wxRGN_COPY:
         default:
             break ;
         case wxRGN_COPY:
         default:

-                               CopyRgn( rgn ,M_REGION ) ;
+                   CopyRgn( rgn ,M_REGION ) ;

             break ;
     }
 
             break ;
     }
 

-               DisposeRgn( rgn ) ;
+        DisposeRgn( rgn ) ;

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -148,19 +189,19 @@ bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
 //! Union /e region with this.
 bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
 {
 //! Union /e region with this.
 bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
 {

-       if (region.Empty())
-               return FALSE;
-
-       // Don't change shared data
-       if (!m_refData) {
-               m_refData = new wxRegionRefData();
-       } 
-       else    if (m_refData->GetRefCount() > 1) 
-       {
-               wxRegionRefData* ref = (wxRegionRefData*)m_refData;
-               UnRef();
-               m_refData = new wxRegionRefData(*ref);
-       }
+    if (region.Empty())
+        return FALSE;
+
+    // Don't change shared data
+    if (!m_refData) {
+        m_refData = new wxRegionRefData();
+    } 
+    else    if (m_refData->GetRefCount() > 1) 
+    {
+        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
+        UnRef();
+        m_refData = new wxRegionRefData(*ref);
+    }

 
     switch (op)
     {
 
     switch (op)
     {


@@ -178,11 +219,11 @@ bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
             break ;
         case wxRGN_COPY:
         default:
             break ;
         case wxRGN_COPY:
         default:

-                               CopyRgn( OTHER_M_REGION(region) ,M_REGION ) ;
+                   CopyRgn( OTHER_M_REGION(region) ,M_REGION ) ;

             break ;
     }
 
             break ;
     }
 

-       return TRUE;
+    return TRUE;

 }
 
 bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
 }
 
 bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)


@@ -197,19 +238,19 @@ bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
 // Outer bounds of region
 void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
 {
 // Outer bounds of region
 void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
 {

-       if (m_refData) 
-       {
-               Rect box ;
-               GetRegionBounds( M_REGION , &box ) ;
+    if (m_refData) 
+    {
+        Rect box ;
+        GetRegionBounds( M_REGION , &box ) ;

         x = box.left ;
         y = box.top ;
         w = box.right - box.left ;
         h = box.bottom - box.top ;
         x = box.left ;
         y = box.top ;
         w = box.right - box.left ;
         h = box.bottom - box.top ;

-       } 
-       else 
-       {
-               x = y = w = h = 0;
-       }
+    } 
+    else 
+    {
+        x = y = w = h = 0;
+    }

 }
 
 wxRect wxRegion::GetBox() const
 }
 
 wxRect wxRegion::GetBox() const


@@ -227,7 +268,7 @@ bool wxRegion::Empty() const
 
 const WXHRGN wxRegion::GetWXHRGN() const
 {
 
 const WXHRGN wxRegion::GetWXHRGN() const
 {

-       return M_REGION ;
+    return M_REGION ;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -237,8 +278,8 @@ const WXHRGN wxRegion::GetWXHRGN() const
 // Does the region contain the point (x,y)?
 wxRegionContain wxRegion::Contains(long x, long y) const
 {
 // Does the region contain the point (x,y)?
 wxRegionContain wxRegion::Contains(long x, long y) const
 {

-       if (!m_refData)
-               return wxOutRegion;
+    if (!m_refData)
+        return wxOutRegion;

 
     // TODO. Return wxInRegion if within region.
     if (0)
 
     // TODO. Return wxInRegion if within region.
     if (0)


@@ -249,8 +290,8 @@ wxRegionContain wxRegion::Contains(long x, long y) const
 // Does the region contain the point pt?
 wxRegionContain wxRegion::Contains(const wxPoint& pt) const
 {
 // Does the region contain the point pt?
 wxRegionContain wxRegion::Contains(const wxPoint& pt) const
 {

-       if (!m_refData)
-               return wxOutRegion;
+    if (!m_refData)
+        return wxOutRegion;

 
     Point p = { pt.y , pt.x } ;
     if (PtInRgn( p , M_REGION ) )
 
     Point p = { pt.y , pt.x } ;
     if (PtInRgn( p , M_REGION ) )


@@ -262,8 +303,8 @@ wxRegionContain wxRegion::Contains(const wxPoint& pt) const
 // Does the region contain the rectangle (x, y, w, h)?
 wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
 {
 // Does the region contain the rectangle (x, y, w, h)?
 wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
 {

-       if (!m_refData)
-               return wxOutRegion;
+    if (!m_refData)
+        return wxOutRegion;

 
     Rect rect = { y , x , y + h , x + w } ;
     if (RectInRgn( &rect , M_REGION ) )
 
     Rect rect = { y , x , y + h , x + w } ;
     if (RectInRgn( &rect , M_REGION ) )


@@ -275,8 +316,8 @@ wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
 // Does the region contain the rectangle rect
 wxRegionContain wxRegion::Contains(const wxRect& rect) const
 {
 // Does the region contain the rectangle rect
 wxRegionContain wxRegion::Contains(const wxRect& rect) const
 {

-       if (!m_refData)
-               return wxOutRegion;
+    if (!m_refData)
+        return wxOutRegion;

 
     long x, y, w, h;
     x = rect.x;
 
     long x, y, w, h;
     x = rect.x;


@@ -356,6 +397,40 @@ wxRegionIterator::wxRegionIterator(const wxRegion& region)
 /*!
  * Reset iterator for a new /e region.
  */
 /*!
  * Reset iterator for a new /e region.
  */

+ 
+OSStatus wxMacRegionToRectsCounterCallback (
+    UInt16 message, RgnHandle region, const Rect *rect, void *data)
+{
+    long *m_numRects = (long*) data ;
+    if ( message == kQDRegionToRectsMsgInit )
+    {
+        (*m_numRects) = 0 ;
+    }
+    else if (message == kQDRegionToRectsMsgParse)
+    {
+        (*m_numRects) += 1 ;
+    }
+    return noErr;
+}
+ 
+class RegionToRectsCallbackData 
+{
+public :
+    wxRect* m_rects ;
+    long m_current ;
+} ;
+
+OSStatus wxMacRegionToRectsSetterCallback (
+    UInt16 message, RgnHandle region, const Rect *rect, void *data)
+{
+    if (message == kQDRegionToRectsMsgParse)
+    {
+        RegionToRectsCallbackData *cb = (RegionToRectsCallbackData*) data ;
+        cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
+    }
+    return noErr;
+}
+

 void wxRegionIterator::Reset(const wxRegion& region)
 {
     m_current = 0;
 void wxRegionIterator::Reset(const wxRegion& region)
 {
     m_current = 0;


@@ -370,15 +445,25 @@ void wxRegionIterator::Reset(const wxRegion& region)
         m_numRects = 0;
     else
     {
         m_numRects = 0;
     else
     {

-       // we cannot dissolve it into rects on mac
-        m_rects = new wxRect[1];
-        Rect rect ;
-        GetRegionBounds( OTHER_M_REGION( region ) , &rect ) ;
-        m_rects[0].x = rect.left;
-        m_rects[0].y = rect.top;
-        m_rects[0].width = rect.right - rect.left;
-        m_rects[0].height = rect.bottom - rect.top;
-        m_numRects = 1;
+        RegionToRectsUPP proc = NewRegionToRectsUPP (wxMacRegionToRectsCounterCallback);
+
+        OSStatus err = noErr;
+        err = QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&m_numRects); 
+        if (err == noErr) 
+        {
+            DisposeRegionToRectsUPP (proc);
+            proc = NewRegionToRectsUPP (wxMacRegionToRectsSetterCallback);
+            m_rects = new wxRect[m_numRects];
+            RegionToRectsCallbackData data ;
+            data.m_rects = m_rects ;
+            data.m_current = 0 ;
+            QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&data); 
+        }
+        else 
+        {
+            m_numRects = 0 ;
+        }
+        DisposeRegionToRectsUPP (proc);

     }
 }
 
     }
 }
 


@@ -409,29 +494,29 @@ wxRegionIterator wxRegionIterator::operator ++ (int)
 
 long wxRegionIterator::GetX() const
 {
 
 long wxRegionIterator::GetX() const
 {

-       if (m_current < m_numRects)
-               return m_rects[m_current].x;
-       return 0;
+    if (m_current < m_numRects)
+        return m_rects[m_current].x;
+    return 0;

 }
 
 long wxRegionIterator::GetY() const
 {
 }
 
 long wxRegionIterator::GetY() const
 {

-       if (m_current < m_numRects)
-               return m_rects[m_current].y;
-       return 0;
+    if (m_current < m_numRects)
+        return m_rects[m_current].y;
+    return 0;

 }
 
 long wxRegionIterator::GetW() const
 {
 }
 
 long wxRegionIterator::GetW() const
 {

-       if (m_current < m_numRects)
-               return m_rects[m_current].width ;
-       return 0;
+    if (m_current < m_numRects)
+        return m_rects[m_current].width ;
+    return 0;

 }
 
 long wxRegionIterator::GetH() const
 {
 }
 
 long wxRegionIterator::GetH() const
 {

-       if (m_current < m_numRects)
-               return m_rects[m_current].height;
-       return 0;
+    if (m_current < m_numRects)
+        return m_rects[m_current].height;
+    return 0;

 }
 
 }