X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad81651f00edc6f489d9b6a0839d316a964fd521..f5e2134e5b3a59e4b63d6f27289b41e10ad1ca03:/src/msw/region.cpp

diff --git a/src/msw/region.cpp b/src/msw/region.cpp
index e40c381e7d..dc33bc15a2 100644
--- a/src/msw/region.cpp
+++ b/src/msw/region.cpp
@@ -26,8 +26,8 @@
 #include "wx/window.h"
 #include "wx/msw/private.h"
 
-    IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
-    IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
 
 //-----------------------------------------------------------------------------
 // wxRegionRefData implementation
@@ -43,7 +43,7 @@ public:
 
     wxRegionRefData(const wxRegionRefData& data)
     {
-#if defined(__WIN32__)
+#if defined(__WIN32__) && !defined(__WXMICROWIN__)
         DWORD noBytes = ::GetRegionData(data.m_region, 0, NULL);
         RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
         ::GetRegionData(data.m_region, noBytes, rgnData);
@@ -66,6 +66,7 @@ public:
 };
 
 #define M_REGION (((wxRegionRefData*)m_refData)->m_region)
+#define M_REGION_OF(rgn) (((wxRegionRefData*)(rgn.m_refData))->m_region)
 
 //-----------------------------------------------------------------------------
 // wxRegion
@@ -76,8 +77,7 @@ public:
  */
 wxRegion::wxRegion()
 {
-    m_refData = new wxRegionRefData;
-    M_REGION = ::CreateRectRgn(0, 0, 0, 0);
+    m_refData = (wxRegionRefData *)NULL;
 }
 
 wxRegion::wxRegion(WXHRGN hRegion)
@@ -86,7 +86,7 @@ wxRegion::wxRegion(WXHRGN hRegion)
     M_REGION = (HRGN) hRegion;
 }
 
-wxRegion::wxRegion(long x, long y, long w, long h)
+wxRegion::wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 {
     m_refData = new wxRegionRefData;
     M_REGION = ::CreateRectRgn(x, y, x + w, y + h);
@@ -101,17 +101,40 @@ wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
 wxRegion::wxRegion(const wxRect& rect)
 {
     m_refData = new wxRegionRefData;
-    M_REGION = ::CreateRectRgn(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
+    M_REGION = ::CreateRectRgn(rect.x, rect.y, rect.x + rect.width, rect.y + rect.height);
+}
+
+wxRegion::wxRegion(size_t n, const wxPoint *points, int fillStyle)
+{
+#ifdef __WXMICROWIN__
+    m_refData = NULL;
+    M_REGION = NULL;
+#else
+    m_refData = new wxRegionRefData;
+    M_REGION = ::CreatePolygonRgn
+               (
+                    (POINT*)points,
+                    n,
+                    fillStyle == wxODDEVEN_RULE ? ALTERNATE : WINDING
+               );
+#endif
 }
 
-/*
- * Destroy the region.
- */
 wxRegion::~wxRegion()
 {
     // m_refData unrefed in ~wxObject
 }
 
+wxObjectRefData *wxRegion::CreateRefData() const
+{
+    return new wxRegionRefData;
+}
+
+wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
+{
+    return new wxRegionRefData(*(wxRegionRefData *)data);
+}
+
 //-----------------------------------------------------------------------------
 // Modify region
 //-----------------------------------------------------------------------------
@@ -122,73 +145,107 @@ void wxRegion::Clear()
     UnRef();
 }
 
-// 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);
-    }
-    // If ref count is 1, that means it's 'ours' anyway so no action.
-
-    HRGN rectRegion = ::CreateRectRgn(x, y, x + width, y + height);
+bool wxRegion::Offset(wxCoord x, wxCoord y)
+{
+    wxCHECK_MSG( M_REGION, FALSE, _T("invalid wxRegion") );
 
-    int mode = 0;
-    switch (op)
+    if ( !x && !y )
     {
-        case wxRGN_AND: mode = RGN_AND; break ;
-        case wxRGN_OR: mode = RGN_OR; break ;
-        case wxRGN_XOR: mode = RGN_XOR; break ;
-        case wxRGN_DIFF: mode = RGN_DIFF; break ;
-        case wxRGN_COPY:
-        default:
-            mode = RGN_COPY; break ;
+        // nothing to do
+        return TRUE;
     }
 
-    bool success = (ERROR != ::CombineRgn(M_REGION, M_REGION, rectRegion, mode));
+    AllocExclusive();
+
+    if ( ::OffsetRgn(GetHrgn(), x, y) == ERROR )
+    {
+        wxLogLastError(_T("OffsetRgn"));
 
-    ::DeleteObject(rectRegion);
+        return FALSE;
+    }
 
-    return success;
+    return TRUE;
 }
 
-// Union /e region with this.
-bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
+// combine another region with this one
+bool wxRegion::Combine(const wxRegion& rgn, 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);
+    // we can't use the API functions if we don't have a valid region handle
+    if ( !m_refData )
+    {
+        // combining with an empty/invalid region works differently depending
+        // on the operation
+        switch ( op )
+        {
+            case wxRGN_COPY:
+            case wxRGN_OR:
+            case wxRGN_XOR:
+                *this = rgn;
+                break;
+
+            default:
+                wxFAIL_MSG( _T("unknown region operation") );
+                // fall through
+
+            case wxRGN_AND:
+            case wxRGN_DIFF:
+                // leave empty/invalid
+                return FALSE;
+        }
     }
-
-    int mode = 0;
-    switch (op)
+    else // we have a valid region
     {
-        case wxRGN_AND: mode = RGN_AND; break ;
-        case wxRGN_OR: mode = RGN_OR; break ;
-        case wxRGN_XOR: mode = RGN_XOR; break ;
-        case wxRGN_DIFF: mode = RGN_DIFF; break ;
-        case wxRGN_COPY:
-        default:
-            mode = RGN_COPY; break ;
+        int mode;
+        switch ( op )
+        {
+            case wxRGN_AND:
+                mode = RGN_AND;
+                break;
+
+            case wxRGN_OR:
+                mode = RGN_OR;
+                break;
+
+            case wxRGN_XOR:
+                mode = RGN_XOR;
+                break;
+
+            case wxRGN_DIFF:
+                mode = RGN_DIFF;
+                break;
+
+            default:
+                wxFAIL_MSG( _T("unknown region operation") );
+                // fall through
+
+            case wxRGN_COPY:
+                mode = RGN_COPY;
+                break;
+        }
+
+        if ( ::CombineRgn(M_REGION, M_REGION, M_REGION_OF(rgn), mode) == ERROR )
+        {
+            wxLogLastError(_T("CombineRgn"));
+
+            return FALSE;
+        }
     }
 
-    return (ERROR != ::CombineRgn(M_REGION, M_REGION, ((wxRegionRefData*)region.m_refData)->m_region, mode));
+    return TRUE;
+}
+
+// Combine rectangle (x, y, w, h) with this.
+bool wxRegion::Combine(wxCoord x, wxCoord y,
+                       wxCoord width, wxCoord height,
+                       wxRegionOp op)
+{
+    return Combine(wxRegion(x, y, width, height), op);
 }
 
 bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
 {
-    return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
+    return Combine(rect.GetLeft(), rect.GetTop(),
+                   rect.GetWidth(), rect.GetHeight(), op);
 }
 
 //-----------------------------------------------------------------------------
@@ -196,23 +253,26 @@ bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
 //-----------------------------------------------------------------------------
 
 // Outer bounds of region
-void wxRegion::GetBox(long& x, long& y, long&w, long &h) const
+void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
 {
-    if (m_refData) {
+    if (m_refData)
+    {
         RECT rect;
         ::GetRgnBox(M_REGION, & rect);
         x = rect.left;
         y = rect.top;
         w = rect.right - rect.left;
         h = rect.bottom - rect.top;
-    } else {
+    }
+    else
+    {
         x = y = w = h = 0;
     }
 }
 
 wxRect wxRegion::GetBox() const
 {
-    long x, y, w, h;
+    wxCoord x, y, w, h;
     GetBox(x, y, w, h);
     return wxRect(x, y, w, h);
 }
@@ -220,12 +280,10 @@ wxRect wxRegion::GetBox() const
 // Is region empty?
 bool wxRegion::Empty() const
 {
-    if (M_REGION == 0)
-        return TRUE;
-    long x, y, w, h;
+    wxCoord x, y, w, h;
     GetBox(x, y, w, h);
 
-    return ((w == 0) && (h == 0));
+    return (w == 0) && (h == 0);
 }
 
 //-----------------------------------------------------------------------------
@@ -233,7 +291,7 @@ bool wxRegion::Empty() const
 //-----------------------------------------------------------------------------
 
 // Does the region contain the point (x,y)?
-wxRegionContain wxRegion::Contains(long x, long y) const
+wxRegionContain wxRegion::Contains(wxCoord x, wxCoord y) const
 {
     if (!m_refData)
         return wxOutRegion;
@@ -257,7 +315,7 @@ 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
+wxRegionContain wxRegion::Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const
 {
     if (!m_refData)
         return wxOutRegion;
@@ -280,7 +338,7 @@ wxRegionContain wxRegion::Contains(const wxRect& rect) const
     if (!m_refData)
         return wxOutRegion;
 
-    long x, y, w, h;
+    wxCoord x, y, w, h;
     x = rect.x;
     y = rect.y;
     w = rect.GetWidth();
@@ -351,7 +409,7 @@ void wxRegionIterator::Reset(const wxRegion& region)
 
         m_rects = new wxRect[header->nCount];
 
-        RECT* rect = (RECT*) ((char*)rgnData + sizeof(RGNDATAHEADER)) ;
+        RECT* rect = (RECT*) ((char*)rgnData + sizeof(RGNDATAHEADER));
         size_t i;
         for (i = 0; i < header->nCount; i++)
         {
@@ -397,28 +455,28 @@ void wxRegionIterator::operator ++ (int)
         ++m_current;
 }
 
-long wxRegionIterator::GetX() const
+wxCoord wxRegionIterator::GetX() const
 {
     if (m_current < m_numRects)
         return m_rects[m_current].x;
     return 0;
 }
 
-long wxRegionIterator::GetY() const
+wxCoord wxRegionIterator::GetY() const
 {
     if (m_current < m_numRects)
         return m_rects[m_current].y;
     return 0;
 }
 
-long wxRegionIterator::GetW() const
+wxCoord wxRegionIterator::GetW() const
 {
     if (m_current < m_numRects)
-        return m_rects[m_current].width ;
+        return m_rects[m_current].width;
     return 0;
 }
 
-long wxRegionIterator::GetH() const
+wxCoord wxRegionIterator::GetH() const
 {
     if (m_current < m_numRects)
         return m_rects[m_current].height;