X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d52e91c98083f6ec9d7c4a9e392240e6fad5ed04..a327b520909bea498517e512ddfdee0a052fe876:/src/gtk/region.cpp

diff --git a/src/gtk/region.cpp b/src/gtk/region.cpp
index ce742d343b..f184e4d795 100644
--- a/src/gtk/region.cpp
+++ b/src/gtk/region.cpp
@@ -2,152 +2,156 @@
 // Name:        gtk/region.cpp
 // Purpose:
 // Author:      Robert Roebling
+// Modified:    VZ at 05.10.00: use AllocExclusive(), comparison fixed
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// ============================================================================
+// declarations
+// ============================================================================
+
 #ifdef __GNUG__
-#pragma implementation "region.h"
+    #pragma implementation "region.h"
 #endif
 
-#include "wx/region.h"
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
 
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#include "wx/log.h"
 
-// Unfortunately the new way of implementing the region iterator
-// doesn't work with GTK+ 2.0 or above (can't access a Region in
-// GdkPrivateRegion)
-#ifdef __WXGTK20__
-#define OLDCODE 1
-#else
-#define OLDCODE 0
-#endif
+#include "wx/region.h"
 
-//-----------------------------------------------------------------------------
-// wxRegion
-//-----------------------------------------------------------------------------
+#include "wx/gtk/private.h"
 
-class wxRegionRefData: public wxObjectRefData
+// ----------------------------------------------------------------------------
+// wxRegionRefData: private class containing the information about the region
+// ----------------------------------------------------------------------------
+
+class wxRegionRefData : public wxObjectRefData
 {
 public:
-    wxRegionRefData();
-    ~wxRegionRefData();
+    wxRegionRefData()
+    {
+        m_region = NULL;
+    }
+    
+    wxRegionRefData(const wxRegionRefData& refData)
+    {
+#ifdef __WXGTK20__
+        m_region = gdk_region_copy(refData.m_region);
+#else
+        m_region = gdk_region_new();
+        GdkRegion *regCopy = gdk_regions_union(m_region, refData.m_region);
+        gdk_region_destroy(m_region);
+        m_region = regCopy;
+#endif
+    }
+    
+    ~wxRegionRefData()
+    {
+        if (m_region)
+            gdk_region_destroy( m_region );
+    }
 
     GdkRegion  *m_region;
-#if OLDCODE
-    wxList      m_rects;
-#endif
 };
 
-wxRegionRefData::wxRegionRefData()
-{
-    m_region = (GdkRegion *) NULL;
-}
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
 
-wxRegionRefData::~wxRegionRefData()
-{
-    if (m_region) gdk_region_destroy( m_region );
+#define M_REGIONDATA ((wxRegionRefData *)m_refData)
+#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
 
-#if OLDCODE
-    wxNode *node = m_rects.First();
-    while (node)
-    {
-        wxRect *r = (wxRect*)node->Data();
-        delete r;
-        node = node->Next();
-    }
-#endif
-}
+IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject);
+IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
 
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxRegion construction
+// ----------------------------------------------------------------------------
 
 #define M_REGIONDATA ((wxRegionRefData *)m_refData)
 
-IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
-
-wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
+void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 {
-    m_refData = new wxRegionRefData();
-    GdkRegion *reg = gdk_region_new();
     GdkRectangle rect;
     rect.x = x;
     rect.y = y;
     rect.width = w;
     rect.height = h;
-#ifdef __WXGTK20__
-    gdk_region_union_with_rect( reg, &rect );
-    M_REGIONDATA->m_region = reg;
-#else
-    M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
-    gdk_region_destroy( reg );
-#endif
-#if OLDCODE
-    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
-#endif
-}
-
-wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
-{
+    
     m_refData = new wxRegionRefData();
-    GdkRegion *reg = gdk_region_new();
-    GdkRectangle rect;
-    rect.x = topLeft.x;
-    rect.y = topLeft.y;
-    rect.width = bottomRight.x - rect.x;
-    rect.height = bottomRight.y - rect.y;
+    
 #ifdef __WXGTK20__
-    gdk_region_union_with_rect( reg, &rect );
-    M_REGIONDATA->m_region = reg;
+    M_REGIONDATA->m_region = gdk_region_rectangle( &rect );
 #else
+    GdkRegion *reg = gdk_region_new();
     M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
     gdk_region_destroy( reg );
 #endif
-#if OLDCODE
-    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
-#endif
 }
 
-wxRegion::wxRegion( const wxRect& rect )
+wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle )
 {
+    GdkPoint *gdkpoints = new GdkPoint[n];
+    for ( size_t i = 0 ; i < n ; i++ )
+    {
+        gdkpoints[i].x = points[i].x;
+        gdkpoints[i].y = points[i].y;
+    }
+
     m_refData = new wxRegionRefData();
-    GdkRegion *reg = gdk_region_new();
-    GdkRectangle g_rect;
-    g_rect.x = rect.x;
-    g_rect.y = rect.y;
-    g_rect.width = rect.width;
-    g_rect.height = rect.height;
-#ifdef __WXGTK20__
-    gdk_region_union_with_rect( reg, &g_rect );
+
+    GdkRegion* reg = gdk_region_polygon
+                     (
+                        gdkpoints,
+                        n,
+                        fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
+                                                    : GDK_EVEN_ODD_RULE
+                     );
+
     M_REGIONDATA->m_region = reg;
-#else
-    M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
-    gdk_region_destroy( reg );
-#endif
-#if OLDCODE
-    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
-#endif
+
+    delete [] gdkpoints;
 }
 
-wxRegion::wxRegion()
+wxRegion::~wxRegion()
 {
+    // m_refData unrefed in ~wxObject
 }
 
-wxRegion::~wxRegion()
+wxObjectRefData *wxRegion::CreateRefData() const
 {
+    return new wxRegionRefData;
 }
 
-bool wxRegion::operator == ( const wxRegion& region )
+wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
 {
-    return m_refData == region.m_refData;
+    return new wxRegionRefData(*(wxRegionRefData *)data);
 }
 
-bool wxRegion::operator != ( const wxRegion& region )
+// ----------------------------------------------------------------------------
+// wxRegion comparison
+// ----------------------------------------------------------------------------
+
+bool wxRegion::operator==( const wxRegion& region )
 {
-    return m_refData != region.m_refData;
+    if (m_refData == region.m_refData) return TRUE;
+
+    if (!m_refData || !region.m_refData) return FALSE;
+    
+    // compare the regions themselves, not the pointers to ref data!
+    return gdk_region_equal(M_REGIONDATA->m_region,
+                            M_REGIONDATA_OF(region)->m_region);
 }
 
+// ----------------------------------------------------------------------------
+// wxRegion operations
+// ----------------------------------------------------------------------------
+
 void wxRegion::Clear()
 {
     UnRef();
@@ -160,20 +164,22 @@ bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
     rect.y = y;
     rect.width = width;
     rect.height = height;
+    
     if (!m_refData)
     {
         m_refData = new wxRegionRefData();
-        GdkRegion *reg = gdk_region_new();
 #ifdef __WXGTK20__
-        gdk_region_union_with_rect( reg, &rect );
-        M_REGIONDATA->m_region = reg;
+        M_REGIONDATA->m_region = gdk_region_rectangle( &rect );
 #else
+        GdkRegion *reg = gdk_region_new();
         M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
         gdk_region_destroy( reg );
 #endif
     }
     else
     {
+        AllocExclusive();
+
 #ifdef __WXGTK20__
         gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
 #else
@@ -182,10 +188,6 @@ bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
         M_REGIONDATA->m_region = reg;
 #endif
     }
-    
-#if OLDCODE
-    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
-#endif
 
     return TRUE;
 }
@@ -205,6 +207,10 @@ bool wxRegion::Union( const wxRegion& region )
         m_refData = new wxRegionRefData();
         M_REGIONDATA->m_region = gdk_region_new();
     }
+    else
+    {
+        AllocExclusive();
+    }
 
 #ifdef __WXGTK20__
     gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
@@ -214,43 +220,21 @@ bool wxRegion::Union( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
-#if OLDCODE
-    wxNode *node = region.GetRectList()->First();
-    while (node)
-    {
-        wxRect *r = (wxRect*)node->Data();
-        M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
-        node = node->Next();
-    }
-#endif
-
     return TRUE;
 }
 
 bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-    
     wxRegion reg( x, y, width, height );
-    Intersect( reg );
-    return TRUE;
+
+    return Intersect( reg );
 }
 
 bool wxRegion::Intersect( const wxRect& rect )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-    
     wxRegion reg( rect );
-    Intersect( reg );
-    return TRUE;
+    
+    return Intersect( reg );
 }
 
 bool wxRegion::Intersect( const wxRegion& region )
@@ -262,9 +246,15 @@ bool wxRegion::Intersect( const wxRegion& region )
     {
         m_refData = new wxRegionRefData();
         M_REGIONDATA->m_region = gdk_region_new();
+        
+        // leave here 
         return TRUE;
     }
-    
+    else
+    {
+        AllocExclusive();
+    }
+
 #ifdef __WXGTK20__
     gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
 #else
@@ -272,33 +262,20 @@ bool wxRegion::Intersect( const wxRegion& region )
     gdk_region_destroy( M_REGIONDATA->m_region );
     M_REGIONDATA->m_region = reg;
 #endif
+
     return TRUE;
 }
 
 bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-
     wxRegion reg( x, y, width, height );
-    Subtract( reg );
-    return TRUE;
+    return Subtract( reg );
 }
 
 bool wxRegion::Subtract( const wxRect& rect )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-
     wxRegion reg( rect );
-    Subtract( reg );
-    return TRUE;
+    return Subtract( reg );
 }
 
 bool wxRegion::Subtract( const wxRegion& region )
@@ -311,6 +288,10 @@ bool wxRegion::Subtract( const wxRegion& region )
         m_refData = new wxRegionRefData();
         M_REGIONDATA->m_region = gdk_region_new();
     }
+    else
+    {
+        AllocExclusive();
+    }
 
 #ifdef __WXGTK20__
     gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
@@ -319,33 +300,20 @@ bool wxRegion::Subtract( const wxRegion& region )
     gdk_region_destroy( M_REGIONDATA->m_region );
     M_REGIONDATA->m_region = reg;
 #endif
+
     return TRUE;
 }
 
 bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-
     wxRegion reg( x, y, width, height );
-    Xor( reg );
-    return TRUE;
+    return Xor( reg );
 }
 
 bool wxRegion::Xor( const wxRect& rect )
 {
-    if (!m_refData)
-    {
-        m_refData = new wxRegionRefData();
-        M_REGIONDATA->m_region = gdk_region_new();
-    }
-
     wxRegion reg( rect );
-    Xor( reg );
-    return TRUE;
+    return Xor( reg );
 }
 
 bool wxRegion::Xor( const wxRegion& region )
@@ -358,6 +326,10 @@ bool wxRegion::Xor( const wxRegion& region )
         m_refData = new wxRegionRefData();
         M_REGIONDATA->m_region = gdk_region_new();
     }
+    else
+    {
+        AllocExclusive();
+    }
 
 #ifdef __WXGTK20__
     gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
@@ -367,46 +339,52 @@ bool wxRegion::Xor( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
-#if OLDCODE
-    wxNode *node = region.GetRectList()->First();
-    while (node)
-    {
-        wxRect *r = (wxRect*)node->Data();
-        M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
-        node = node->Next();
-    }
-#endif
-
     return TRUE;
 }
 
+// ----------------------------------------------------------------------------
+// wxRegion tests
+// ----------------------------------------------------------------------------
+
 void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
 {
-    x = 0;
-    y = 0;
-    w = -1;
-    h = -1;
-    if (!m_refData)
-        return;
-
-    GdkRectangle rect;
-    gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
-    x = rect.x;
-    y = rect.y;
-    w = rect.width;
-    h = rect.height;
+    if ( m_refData )
+    {
+        GdkRectangle rect;
+        gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
+        x = rect.x;
+        y = rect.y;
+        w = rect.width;
+        h = rect.height;
+    }
+    else
+    {
+        x = 0;
+        y = 0;
+        w = -1;
+        h = -1;
+    }
 }
 
 wxRect wxRegion::GetBox() const
 {
-    wxCoord x = 0;
-    wxCoord y = 0;
-    wxCoord w = -1;
-    wxCoord h = -1;
+    wxCoord x, y, w, h;
     GetBox( x, y, w, h );
     return wxRect( x, y, w, h );
 }
 
+bool wxRegion::Offset( wxCoord x, wxCoord y )
+{
+    if (!m_refData)
+        return FALSE;
+
+    AllocExclusive();
+
+    gdk_region_offset( M_REGIONDATA->m_region, x, y );
+
+    return TRUE;
+}
+
 bool wxRegion::Empty() const
 {
     if (!m_refData)
@@ -464,95 +442,11 @@ GdkRegion *wxRegion::GetRegion() const
     return M_REGIONDATA->m_region;
 }
 
-wxList *wxRegion::GetRectList() const
-{
-#if OLDCODE
-    if (!m_refData)
-        return (wxList*) NULL;
-
-    return &(M_REGIONDATA->m_rects);
-#else
-    return (wxList*) NULL;
-#endif
-}
-
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 // wxRegionIterator
-//-----------------------------------------------------------------------------
-
-#if OLDCODE
-
-IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
-
-wxRegionIterator::wxRegionIterator()
-{
-    Reset();
-}
-
-wxRegionIterator::wxRegionIterator( const wxRegion& region )
-{
-    Reset(region);
-}
-
-void wxRegionIterator::Reset( const wxRegion& region )
-{
-    m_region = region;
-    Reset();
-}
-
-wxRegionIterator::operator bool () const
-{
-    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
-}
-
-bool wxRegionIterator::HaveRects() const
-{
-    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
-}
-
-void wxRegionIterator::operator ++ ()
-{
-    if (HaveRects()) ++m_current;
-}
+// ----------------------------------------------------------------------------
 
-void wxRegionIterator::operator ++ (int)
-{
-    if (HaveRects()) ++m_current;
-}
-
-wxCoord wxRegionIterator::GetX() const
-{
-    wxNode *node = m_region.GetRectList()->Nth( m_current );
-    if (!node) return 0;
-    wxRect *r = (wxRect*)node->Data();
-    return r->x;
-}
-
-wxCoord wxRegionIterator::GetY() const
-{
-    wxNode *node = m_region.GetRectList()->Nth( m_current );
-    if (!node) return 0;
-    wxRect *r = (wxRect*)node->Data();
-    return r->y;
-}
-
-wxCoord wxRegionIterator::GetW() const
-{
-    wxNode *node = m_region.GetRectList()->Nth( m_current );
-    if (!node) return 0;
-    wxRect *r = (wxRect*)node->Data();
-    return r->width;
-}
-
-wxCoord wxRegionIterator::GetH() const
-{
-    wxNode *node = m_region.GetRectList()->Nth( m_current );
-    if (!node) return 0;
-    wxRect *r = (wxRect*)node->Data();
-    return r->height;
-}
-
-#else
+#ifndef __WXGTK20__
 
 // the following structures must match the private structures
 // in X11 region code ( xc/lib/X11/region.h )
@@ -560,15 +454,19 @@ wxCoord wxRegionIterator::GetH() const
 // this makes the Region type transparent
 // and we have access to the region rectangles
 
+#include <gdk/gdkprivate.h>
+
 struct _XBox {
     short x1, x2, y1, y2;
 };
- 
+
 struct _XRegion {
     long   size , numRects;
     _XBox *rects, extents;
 };
 
+#endif
+
 class wxRIRefData: public wxObjectRefData
 {
 public:
@@ -587,38 +485,59 @@ wxRIRefData::~wxRIRefData()
     delete m_rects;
 }
 
-#include <gdk/gdkprivate.h>
-
 void wxRIRefData::CreateRects( const wxRegion& region )
 {
-  if( m_rects )
-    delete m_rects;
-  m_rects   = 0;
-  m_numRects= 0;
-  GdkRegion *gdkregion= region.GetRegion();
-  if( gdkregion ){
-    Region r= ((GdkRegionPrivate *)gdkregion)->xregion;
-    if( r ){
-      m_numRects= r->numRects;
-      if( m_numRects )
-      {
-        m_rects= new wxRect[m_numRects];
-        for( size_t i=0; i<m_numRects; ++i )
+    if (m_rects)
+      delete m_rects;
+
+    m_rects = 0;
+    m_numRects = 0;
+    
+    GdkRegion *gdkregion = region.GetRegion();
+    if (!gdkregion) return;
+    
+#ifdef __WXGTK20__
+    GdkRectangle *gdkrects = NULL;
+    gint numRects = 0;
+    gdk_region_get_rectangles( gdkregion, &gdkrects, &numRects );
+    
+    m_numRects = numRects;
+    if (numRects)
+    {
+        m_rects = new wxRect[m_numRects];
+        for (size_t i=0; i < m_numRects; ++i)
         {
-          _XBox &xr= r->rects[i];
-          wxRect&wr= m_rects[i];
-          wr.x     = xr.x1;
-          wr.y     = xr.y1;
-          wr.width = xr.x2-xr.x1;
-          wr.height= xr.y2-xr.y1;
+            GdkRectangle &gr = gdkrects[i];
+            wxRect &wr = m_rects[i];
+            wr.x = gr.x;
+            wr.y = gr.y;
+            wr.width = gr.width;
+            wr.height = gr.height;
         }
-      }
     }
-  }
+    g_free( gdkrects );
+#else // GTK+ 1.x
+    Region r = ((GdkRegionPrivate *)gdkregion)->xregion;
+    if (r)
+    {
+        m_numRects = r->numRects;
+        if (m_numRects)
+        {
+            m_rects = new wxRect[m_numRects];
+            for (size_t i=0; i < m_numRects; ++i)
+            {
+                _XBox &xr = r->rects[i];
+                wxRect &wr = m_rects[i];
+                wr.x = xr.x1;
+                wr.y = xr.y1;
+                wr.width = xr.x2-xr.x1;
+                wr.height = xr.y2-xr.y1;
+            }
+        }
+    }
+#endif // GTK+ 2.0/1.x
 }
 
-IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
-
 wxRegionIterator::wxRegionIterator()
 {
     m_refData = new wxRIRefData();
@@ -682,5 +601,12 @@ wxCoord wxRegionIterator::GetH() const
     return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
 }
 
-#endif
+wxRect wxRegionIterator::GetRect() const
+{
+    wxRect r;
+    if( HaveRects() )
+        r = ((wxRIRefData*)m_refData)->m_rects[m_current];
+
+    return r;
+}