X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ca65c0440a7163e4e37e48b1c4329709d722db47..009c72169f3dc90dbec89fdfe2956065aa35377f:/src/generic/regiong.cpp

diff --git a/src/generic/regiong.cpp b/src/generic/regiong.cpp
index 4ed586112c..d9ee1d95de 100644
--- a/src/generic/regiong.cpp
+++ b/src/generic/regiong.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        generic/region.cpp
+// Name:        src/generic/region.cpp
 // Purpose:     generic wxRegion class
 // Author:      David Elliott
 // Modified by:
@@ -9,8 +9,19 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#include "wx/generic/region.h"
-#include "wx/utils.h"
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/region.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/utils.h"
+#endif
 
 // ========================================================================
 // Classes to interface with X.org code
@@ -28,6 +39,7 @@ struct REGION
 public:
     // Default constructor initializes nothing
     REGION() {}
+
     REGION(const wxRect& rect)
     {
         rects = &extents;
@@ -38,7 +50,11 @@ public:
         extents.y2 = rect.y + rect.height;
         size = 1;
     }
-    BoxPtr GetBox(int i) { if(i<numRects) return rects+i; else return NULL; }
+
+    BoxPtr GetBox(int i)
+    {
+        return i < numRects ? rects + i : NULL;
+    }
 
     // X.org methods
     static bool XClipBox(
@@ -159,12 +175,16 @@ protected:
 // ========================================================================
 // wxRegionRefData
 // ========================================================================
-class wxRegionRefData : public wxObjectRefData, public REGION
+
+class wxRegionRefData : public wxGDIRefData,
+                        public REGION
 {
 public:
     wxRegionRefData()
-    /* XCreateRegion */
-    {   size = 1;
+        : wxGDIRefData(),
+          REGION()
+    {
+        size = 1;
         numRects = 0;
         rects = ( BOX * )malloc( (unsigned) sizeof( BOX ));
         extents.x1 = 0;
@@ -172,10 +192,12 @@ public:
         extents.y1 = 0;
         extents.y2 = 0;
     }
+
     wxRegionRefData(const wxPoint& topLeft, const wxPoint& bottomRight)
-    :   wxObjectRefData()
-    ,   REGION()
-    {   rects = (BOX*)malloc(sizeof(BOX));
+        : wxGDIRefData(),
+          REGION()
+    {
+        rects = (BOX*)malloc(sizeof(BOX));
         size = 1;
         numRects = 1;
         extents.x1 = topLeft.x;
@@ -184,25 +206,31 @@ public:
         extents.y2 = bottomRight.y;
         *rects = extents;
     }
+
     wxRegionRefData(const wxRect& rect)
-    :   wxObjectRefData()
-    ,   REGION(rect)
-    {   rects = (BOX*)malloc(sizeof(BOX));
+        : wxGDIRefData(),
+          REGION(rect)
+    {
+        rects = (BOX*)malloc(sizeof(BOX));
         *rects = extents;
     }
+
     wxRegionRefData(const wxRegionRefData& refData)
-    :   wxObjectRefData()
-    ,   REGION()
+        : wxGDIRefData(),
+          REGION()
     {
         size = refData.size;
         numRects = refData.numRects;
         rects = (Box*)malloc(numRects*sizeof(Box));
+        memcpy(rects, refData.rects, numRects*sizeof(Box));
         extents = refData.extents;
     }
-    ~wxRegionRefData()
+
+    virtual ~wxRegionRefData()
     {
         free(rects);
     }
+
 private:
     // Don't allow this
     wxRegionRefData(const REGION&);
@@ -211,7 +239,7 @@ private:
 // ========================================================================
 // wxRegionGeneric
 // ========================================================================
-//IMPLEMENT_DYNAMIC_CLASS(wxRegionGeneric, wxGDIObject);
+//IMPLEMENT_DYNAMIC_CLASS(wxRegionGeneric, wxGDIObject)
 
 #define M_REGIONDATA ((wxRegionRefData *)m_refData)
 #define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
@@ -246,112 +274,86 @@ wxRegionGeneric::wxRegionGeneric(const wxPoint& topLeft, const wxPoint& bottomRi
 void wxRegionGeneric::Clear()
 {
     UnRef();
+    if (!m_refData)
+        m_refData = new wxRegionRefData(wxRect(0,0,0,0));
 }
 
-wxObjectRefData *wxRegionGeneric::CreateRefData() const
+wxGDIRefData *wxRegionGeneric::CreateGDIRefData() const
 {
     return new wxRegionRefData;
 }
 
-wxObjectRefData *wxRegionGeneric::CloneRefData(const wxObjectRefData *data) const
+wxGDIRefData *wxRegionGeneric::CloneGDIRefData(const wxGDIRefData *data) const
 {
     return new wxRegionRefData(*(wxRegionRefData *)data);
 }
 
-bool wxRegionGeneric::operator== (const wxRegionGeneric& region)
+bool wxRegionGeneric::DoIsEqual(const wxRegion& region) const
 {
-    wxASSERT(m_refData && region.m_refData);
     return REGION::XEqualRegion(M_REGIONDATA,M_REGIONDATA_OF(region));
 }
 
-wxRect wxRegionGeneric::GetBox() const
+bool wxRegionGeneric::DoGetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
 {
-    wxASSERT(m_refData);
-    wxRect rect;
-    REGION::XClipBox(M_REGIONDATA,&rect);
-    return rect;
-}
+    if ( !m_refData )
+        return false;
 
-void wxRegionGeneric::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
-{
-    wxASSERT(m_refData);
     wxRect rect;
     REGION::XClipBox(M_REGIONDATA,&rect);
     x = rect.x;
     y = rect.y;
     w = rect.width;
     h = rect.height;
+    return true;
 }
 
 // ----------------------------------------------------------------------------
 // wxRegionGeneric operations
 // ----------------------------------------------------------------------------
 
-bool wxRegionGeneric::Union(const wxRect& rect)
-/* XUnionRectWithRegion */
+bool wxRegionGeneric::DoUnionWithRect(const wxRect& rect)
 {
-    if (!rect.width || !rect.height)
-        return false;
+    if ( rect.IsEmpty() )
+    {
+        // nothing to do
+        return true;
+    }
 
     AllocExclusive();
     REGION region(rect);
     return REGION::XUnionRegion(&region,M_REGIONDATA,M_REGIONDATA);
 }
 
-bool wxRegionGeneric::Union(const wxRegionGeneric& region)
+bool wxRegionGeneric::DoUnionWithRegion(const wxRegion& region)
 {
     AllocExclusive();
     return REGION::XUnionRegion(M_REGIONDATA_OF(region),M_REGIONDATA,M_REGIONDATA);
 }
 
-bool wxRegionGeneric::Intersect(const wxRect& rect)
-{
-    if (!rect.width || !rect.height)
-        return false;
-    AllocExclusive();
-    REGION region(rect);
-
-    return REGION::XIntersectRegion(&region,M_REGIONDATA,M_REGIONDATA);
-}
-
-bool wxRegionGeneric::Intersect(const wxRegionGeneric& region)
+bool wxRegionGeneric::DoIntersect(const wxRegion& region)
 {
     AllocExclusive();
     return REGION::XIntersectRegion(M_REGIONDATA_OF(region),M_REGIONDATA,M_REGIONDATA);
 }
 
-bool wxRegionGeneric::Subtract(const wxRect& rect)
+bool wxRegionGeneric::DoSubtract(const wxRegion& region)
 {
-    if (!rect.width || !rect.height)
-        return false;
-    AllocExclusive();
-    REGION region(rect);
-
-    return REGION::XSubtractRegion(&region,M_REGIONDATA,M_REGIONDATA);
-}
+    if ( region.IsEmpty() )
+    {
+        // nothing to do
+        return true;
+    }
 
-bool wxRegionGeneric::Subtract(const wxRegionGeneric& region)
-{
     return REGION::XSubtractRegion(M_REGIONDATA_OF(region),M_REGIONDATA,M_REGIONDATA);
 }
 
-bool wxRegionGeneric::Xor(const wxRect& rect)
-{
-    if (!rect.width || !rect.height)
-        return false;
-    AllocExclusive();
-    REGION region(rect);
-
-    return REGION::XXorRegion(&region,M_REGIONDATA,M_REGIONDATA);
-}
-
-bool wxRegionGeneric::Xor(const wxRegionGeneric& region)
+bool wxRegionGeneric::DoXor(const wxRegion& region)
 {
     AllocExclusive();
     return REGION::XXorRegion(M_REGIONDATA_OF(region),M_REGIONDATA,M_REGIONDATA);
 }
 
-bool wxRegionGeneric::Offset(wxCoord x, wxCoord y)
+bool wxRegionGeneric::DoOffset(wxCoord x, wxCoord y)
 {
     AllocExclusive();
     return REGION::XOffsetRegion(M_REGIONDATA, x, y);
@@ -361,35 +363,21 @@ bool wxRegionGeneric::Offset(wxCoord x, wxCoord y)
 // wxRegionGeneric comparison
 // ----------------------------------------------------------------------------
 
-bool wxRegionGeneric::Empty() const
+bool wxRegionGeneric::IsEmpty() const
 {
     wxASSERT(m_refData);
     return REGION::XEmptyRegion(M_REGIONDATA);
 }
 
 // Does the region contain the point (x,y)?
-wxRegionContain wxRegionGeneric::Contains(long x, long y) const
-{
-    wxASSERT(m_refData);
-    return REGION::XPointInRegion(M_REGIONDATA,x,y)?wxInRegion:wxOutRegion;
-}
-
-// Does the region contain the point pt?
-wxRegionContain wxRegionGeneric::Contains(const wxPoint& pt) const
+wxRegionContain wxRegionGeneric::DoContainsPoint(wxCoord x, wxCoord y) const
 {
     wxASSERT(m_refData);
-    return REGION::XPointInRegion(M_REGIONDATA,pt.x,pt.y)?wxInRegion:wxOutRegion;
-}
-
-// Does the region contain the rectangle (x, y, w, h)?
-wxRegionContain wxRegionGeneric::Contains(long x, long y, long w, long h) const
-{
-    wxASSERT(m_refData);
-    return REGION::XRectInRegion(M_REGIONDATA,x,y,w,h);
+    return REGION::XPointInRegion(M_REGIONDATA,x,y) ? wxInRegion : wxOutRegion;
 }
 
 // Does the region contain the rectangle rect?
-wxRegionContain wxRegionGeneric::Contains(const wxRect& rect) const
+wxRegionContain wxRegionGeneric::DoContainsRect(const wxRect& rect) const
 {
     wxASSERT(m_refData);
     return REGION::XRectInRegion(M_REGIONDATA,rect.x,rect.y,rect.width,rect.height);
@@ -398,7 +386,7 @@ wxRegionContain wxRegionGeneric::Contains(const wxRect& rect) const
 // ========================================================================
 // wxRegionIteratorGeneric
 // ========================================================================
-//IMPLEMENT_DYNAMIC_CLASS(wxRegionIteratorGeneric,wxObject);
+//IMPLEMENT_DYNAMIC_CLASS(wxRegionIteratorGeneric,wxObject)
 
 wxRegionIteratorGeneric::wxRegionIteratorGeneric()
 {
@@ -443,7 +431,7 @@ wxRegionIteratorGeneric wxRegionIteratorGeneric::operator++(int)
 
 wxRect wxRegionIteratorGeneric::GetRect() const
 {
-    wxASSERT(m_refData);
+    wxASSERT(m_region.m_refData);
     const Box *box = M_REGIONDATA_OF(m_region)->GetBox(m_current);
     wxASSERT(box);
     return wxRect
@@ -456,7 +444,7 @@ wxRect wxRegionIteratorGeneric::GetRect() const
 
 long wxRegionIteratorGeneric::GetX() const
 {
-    wxASSERT(m_refData);
+    wxASSERT(m_region.m_refData);
     const Box *box = M_REGIONDATA_OF(m_region)->GetBox(m_current);
     wxASSERT(box);
     return box->x1;
@@ -464,7 +452,7 @@ long wxRegionIteratorGeneric::GetX() const
 
 long wxRegionIteratorGeneric::GetY() const
 {
-    wxASSERT(m_refData);
+    wxASSERT(m_region.m_refData);
     const Box *box = M_REGIONDATA_OF(m_region)->GetBox(m_current);
     wxASSERT(box);
     return box->y1;
@@ -472,7 +460,7 @@ long wxRegionIteratorGeneric::GetY() const
 
 long wxRegionIteratorGeneric::GetW() const
 {
-    wxASSERT(m_refData);
+    wxASSERT(m_region.m_refData);
     const Box *box = M_REGIONDATA_OF(m_region)->GetBox(m_current);
     wxASSERT(box);
     return box->x2 - box->x1;
@@ -480,7 +468,7 @@ long wxRegionIteratorGeneric::GetW() const
 
 long wxRegionIteratorGeneric::GetH() const
 {
-    wxASSERT(m_refData);
+    wxASSERT(m_region.m_refData);
     const Box *box = M_REGIONDATA_OF(m_region)->GetBox(m_current);
     wxASSERT(box);
     return box->y2 - box->y1;
@@ -603,14 +591,17 @@ SOFTWARE.
  */
 
 /* Create a new empty region */
-Region REGION::
-XCreateRegion(void)
+Region REGION::XCreateRegion(void)
 {
-    Region temp;
+    Region temp = new REGION;
 
-    if (! (temp = new REGION))
+    if (!temp)
         return (Region) NULL;
-    if (! (temp->rects = ( BOX * )malloc( (unsigned) sizeof( BOX )))) {
+
+    temp->rects = ( BOX * )malloc( (unsigned) sizeof( BOX ));
+
+    if (!temp->rects)
+    {
         free((char *) temp);
         return (Region) NULL;
     }
@@ -623,10 +614,7 @@ XCreateRegion(void)
     return( temp );
 }
 
-bool REGION::
-XClipBox(
-    Region r,
-    wxRect *rect)
+bool REGION::XClipBox(Region r, wxRect *rect)
 {
     rect->x = r->extents.x1;
     rect->y = r->extents.y1;
@@ -859,9 +847,10 @@ miRegionCopy(
             {
                 BOX *prevRects = dstrgn->rects;
 
-                if (! (dstrgn->rects = (BOX *)
+                dstrgn->rects = (BOX *)
                        realloc((char *) dstrgn->rects,
-                               (unsigned) rgn->numRects * (sizeof(BOX)))))
+                               (unsigned) rgn->numRects * (sizeof(BOX)));
+                if (!dstrgn->rects)
                 {
                     free(prevRects);
                     return;
@@ -1128,8 +1117,10 @@ miRegionOp(
      */
     newReg->size = wxMax(reg1->numRects,reg2->numRects) * 2;
 
-    if (! (newReg->rects = (BoxPtr)
-           malloc ((unsigned) (sizeof(BoxRec) * newReg->size)))) {
+    newReg->rects = (BoxPtr)malloc((unsigned) (sizeof(BoxRec) * newReg->size));
+
+    if (!newReg->rects)
+    {
         newReg->size = 0;
         return;
     }
@@ -1758,11 +1749,7 @@ miSubtractO (
  *-----------------------------------------------------------------------
  */
 
-bool REGION::
-XSubtractRegion(
-    Region                   regM,
-    Region                  regS,
-    register Region        regD)
+bool REGION::XSubtractRegion(Region regM, Region regS, register Region regD)
 {
    /* check for trivial reject */
     if ( (!(regM->numRects)) || (!(regS->numRects))  ||
@@ -1786,13 +1773,16 @@ XSubtractRegion(
     return true;
 }
 
-bool REGION::
-XXorRegion(Region sra, Region srb, Region dr)
+bool REGION::XXorRegion(Region sra, Region srb, Region dr)
 {
-    Region tra, trb;
+    Region tra = XCreateRegion();
+
+    wxCHECK_MSG( tra, false, wxT("region not created") );
+
+    Region trb = XCreateRegion();
+
+    wxCHECK_MSG( trb, false, wxT("region not created") );
 
-    if ((! (tra = XCreateRegion())) || (! (trb = XCreateRegion())))
-        return 0;
     (void) XSubtractRegion(sra,srb,tra);
     (void) XSubtractRegion(srb,sra,trb);
     (void) XUnionRegion(tra,trb,dr);
@@ -1805,9 +1795,7 @@ XXorRegion(Region sra, Region srb, Region dr)
  * Check to see if the region is empty.  Assumes a region is passed
  * as a parameter
  */
-bool REGION::
-XEmptyRegion(
-    Region r)
+bool REGION::XEmptyRegion(Region r)
 {
     if( r->numRects == 0 ) return true;
     else  return false;
@@ -1816,8 +1804,7 @@ XEmptyRegion(
 /*
  *        Check to see if two regions are equal
  */
-bool REGION::
-XEqualRegion(Region r1, Region r2)
+bool REGION::XEqualRegion(Region r1, Region r2)
 {
     int i;
 
@@ -1836,10 +1823,7 @@ XEqualRegion(Region r1, Region r2)
     return true;
 }
 
-bool REGION::
-XPointInRegion(
-    Region pRegion,
-    int x, int y)
+bool REGION::XPointInRegion(Region pRegion, int x, int y)
 {
     int i;
 
@@ -1855,11 +1839,10 @@ XPointInRegion(
     return false;
 }
 
-wxRegionContain REGION::
-XRectInRegion(
-    register Region        region,
-    int rx, int ry,
-    unsigned int rwidth, unsigned int rheight)
+wxRegionContain REGION::XRectInRegion(register Region region,
+                                      int rx, int ry,
+                                      unsigned int rwidth,
+                                      unsigned int rheight)
 {
     register BoxPtr pbox;
     register BoxPtr pboxEnd;
@@ -1936,4 +1919,3 @@ XRectInRegion(
     return(partIn ? ((ry < prect->y2) ? wxPartRegion : wxInRegion) :
                 wxOutRegion);
 }
-