/////////////////////////////////////////////////////////////////////////////
-// Name: region.cpp
+// Name: gtk/region.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#include <gdk/gdk.h>
#include <gtk/gtk.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
+
//-----------------------------------------------------------------------------
// wxRegion
//-----------------------------------------------------------------------------
class wxRegionRefData: public wxObjectRefData
{
- public:
-
+public:
wxRegionRefData();
~wxRegionRefData();
-
- public:
GdkRegion *m_region;
+#if OLDCODE
wxList m_rects;
+#endif
};
wxRegionRefData::wxRegionRefData()
wxRegionRefData::~wxRegionRefData()
{
if (m_region) gdk_region_destroy( m_region );
-
+
+#if OLDCODE
wxNode *node = m_rects.First();
while (node)
{
delete r;
node = node->Next();
}
+#endif
}
//-----------------------------------------------------------------------------
#define M_REGIONDATA ((wxRegionRefData *)m_refData)
IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
-
-wxRegion::wxRegion( long x, long y, long w, long h )
+
+wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
{
m_refData = new wxRegionRefData();
GdkRegion *reg = gdk_region_new();
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 )
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;
+#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(topLeft,bottomRight) );
+#endif
}
wxRegion::wxRegion( const wxRect& rect )
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 );
+ M_REGIONDATA->m_region = reg;
+#else
M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
gdk_region_destroy( reg );
-
- wxNode *node = M_REGIONDATA->m_rects.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
+#if OLDCODE
+ M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
+#endif
}
wxRegion::wxRegion()
{
- m_refData = new wxRegionRefData();
- M_REGIONDATA->m_region = gdk_region_new();
}
wxRegion::~wxRegion()
bool wxRegion::operator == ( const wxRegion& region )
{
- return m_refData == region.m_refData;
+ return m_refData == region.m_refData;
}
bool wxRegion::operator != ( const wxRegion& region )
{
- return m_refData != region.m_refData;
+ return m_refData != region.m_refData;
}
void wxRegion::Clear()
{
UnRef();
- m_refData = new wxRegionRefData();
- M_REGIONDATA->m_region = gdk_region_new();
}
-bool wxRegion::Union( long x, long y, long width, long height )
+bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = width;
rect.height = height;
- GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
- gdk_region_destroy( M_REGIONDATA->m_region );
- M_REGIONDATA->m_region = reg;
+ 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;
+#else
+ M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
+ gdk_region_destroy( reg );
+#endif
+ }
+ else
+ {
+#ifdef __WXGTK20__
+ gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
+#else
+ GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
+ gdk_region_destroy( M_REGIONDATA->m_region );
+ M_REGIONDATA->m_region = reg;
+#endif
+ }
+
+#if OLDCODE
M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
+#endif
+
return TRUE;
}
bool wxRegion::Union( const wxRect& rect )
{
- GdkRectangle g_rect;
- g_rect.x = rect.x;
- g_rect.y = rect.y;
- g_rect.width = rect.width;
- g_rect.height = rect.height;
- GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &g_rect );
- gdk_region_destroy( M_REGIONDATA->m_region );
- M_REGIONDATA->m_region = reg;
- M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
- return TRUE;
+ return Union( rect.x, rect.y, rect.width, rect.height );
}
bool wxRegion::Union( const wxRegion& region )
{
+ if (region.IsNull())
+ return FALSE;
+
+ if (!m_refData)
+ {
+ m_refData = new wxRegionRefData();
+ M_REGIONDATA->m_region = gdk_region_new();
+ }
+
+#ifdef __WXGTK20__
+ gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
+#else
GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
-
+#endif
+
+#if OLDCODE
wxNode *node = region.GetRectList()->First();
while (node)
{
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( long x, long y, long width, long height )
+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;
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;
bool wxRegion::Intersect( const wxRegion& region )
{
+ if (region.IsNull())
+ return FALSE;
+
+ if (!m_refData)
+ {
+ m_refData = new wxRegionRefData();
+ M_REGIONDATA->m_region = gdk_region_new();
+ return TRUE;
+ }
+
+#ifdef __WXGTK20__
+ gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
+#else
GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
+#endif
return TRUE;
}
-bool wxRegion::Subtract( long x, long y, long width, long height )
+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;
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;
bool wxRegion::Subtract( const wxRegion& region )
{
+ if (region.IsNull())
+ return FALSE;
+
+ if (!m_refData)
+ {
+ m_refData = new wxRegionRefData();
+ M_REGIONDATA->m_region = gdk_region_new();
+ }
+
+#ifdef __WXGTK20__
+ gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
+#else
GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
+#endif
return TRUE;
}
-bool wxRegion::Xor( long x, long y, long width, long height )
+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;
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;
bool wxRegion::Xor( const wxRegion& region )
{
+ if (region.IsNull())
+ return FALSE;
+
+ if (!m_refData)
+ {
+ m_refData = new wxRegionRefData();
+ M_REGIONDATA->m_region = gdk_region_new();
+ }
+
+#ifdef __WXGTK20__
+ gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
+#else
GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
-
+#endif
+
+#if OLDCODE
wxNode *node = region.GetRectList()->First();
while (node)
{
M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
node = node->Next();
}
-
+#endif
+
return TRUE;
}
-void wxRegion::GetBox( long& x, long& y, long&w, long &h ) const
+void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
{
x = 0;
y = 0;
w = -1;
h = -1;
- wxNode *node = GetRectList()->First();
- while (node)
- {
- wxRect *r = (wxRect*)node->Data();
- if (node == GetRectList()->First())
- {
- x = r->x;
- y = r->y;
- w = r->width;
- h = r->height;
- }
- else
- {
- if (r->x < x)
- {
- x = r->x;
- w += x - r->x;
- }
- if (r->y < y)
- {
- y = r->y;
- h += y - r->y;
- }
- if (r->width+r->x > x+w)
- {
- w = r->x + r->width - x;
- }
- if (r->height+r->y > y+h)
- {
- h = r->y + r->height - y;
- }
- }
- node = node->Next();
- }
+ 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;
}
wxRect wxRegion::GetBox() const
{
- long x = 0;
- long y = 0;
- long w = -1;
- long h = -1;
+ wxCoord x = 0;
+ wxCoord y = 0;
+ wxCoord w = -1;
+ wxCoord h = -1;
GetBox( x, y, w, h );
return wxRect( x, y, w, h );
}
bool wxRegion::Empty() const
{
+ if (!m_refData)
+ return TRUE;
+
return gdk_region_empty( M_REGIONDATA->m_region );
}
-wxRegionContain wxRegion::Contains( long x, long y ) const
+wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
{
+ if (!m_refData)
+ return wxOutRegion;
+
if (gdk_region_point_in( M_REGIONDATA->m_region, x, y ))
return wxInRegion;
else
return wxOutRegion;
}
-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;
+
GdkRectangle rect;
rect.x = x;
rect.y = y;
GdkRegion *wxRegion::GetRegion() const
{
+ if (!m_refData)
+ return (GdkRegion*) NULL;
+
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
}
//-----------------------------------------------------------------------------
-// wxRegion
+// wxRegionIterator
//-----------------------------------------------------------------------------
+#if OLDCODE
+
IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
-
+
wxRegionIterator::wxRegionIterator()
{
- m_current = 0;
+ Reset();
}
wxRegionIterator::wxRegionIterator( const wxRegion& region )
{
- m_region = region;
- m_current = 0;
+ Reset(region);
}
void wxRegionIterator::Reset( const wxRegion& region )
{
m_region = region;
- m_current = 0;
+ Reset();
}
-wxRegionIterator::operator bool () const
-{
- return m_current < m_region.GetRectList()->Number();
+wxRegionIterator::operator bool () const
+{
+ return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
}
-bool wxRegionIterator::HaveRects() const
-{
- return m_current < m_region.GetRectList()->Number();
+bool wxRegionIterator::HaveRects() const
+{
+ return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
}
void wxRegionIterator::operator ++ ()
{
- if (m_current < m_region.GetRectList()->Number()) ++m_current;
+ if (HaveRects()) ++m_current;
}
void wxRegionIterator::operator ++ (int)
{
- if (m_current < m_region.GetRectList()->Number()) ++m_current;
+ if (HaveRects()) ++m_current;
}
wxCoord wxRegionIterator::GetX() const
return r->height;
}
+#else
+
+// the following structures must match the private structures
+// in X11 region code ( xc/lib/X11/region.h )
+
+// this makes the Region type transparent
+// and we have access to the region rectangles
+
+struct _XBox {
+ short x1, x2, y1, y2;
+};
+
+struct _XRegion {
+ long size , numRects;
+ _XBox *rects, extents;
+};
+
+class wxRIRefData: public wxObjectRefData
+{
+public:
+
+ wxRIRefData() : m_rects(0), m_numRects(0){}
+ ~wxRIRefData();
+
+ wxRect *m_rects;
+ size_t m_numRects;
+
+ void CreateRects( const wxRegion& r );
+};
+
+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 )
+ {
+ _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;
+ }
+ }
+ }
+ }
+}
+
+IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
+
+wxRegionIterator::wxRegionIterator()
+{
+ m_refData = new wxRIRefData();
+ Reset();
+}
+
+wxRegionIterator::wxRegionIterator( const wxRegion& region )
+{
+ m_refData = new wxRIRefData();
+ Reset(region);
+}
+
+void wxRegionIterator::Reset( const wxRegion& region )
+{
+ m_region = region;
+ ((wxRIRefData*)m_refData)->CreateRects(region);
+ Reset();
+}
+
+bool wxRegionIterator::HaveRects() const
+{
+ return m_current < ((wxRIRefData*)m_refData)->m_numRects;
+}
+
+wxRegionIterator::operator bool () const
+{
+ return HaveRects();
+}
+
+void wxRegionIterator::operator ++ ()
+{
+ if (HaveRects()) ++m_current;
+}
+
+void wxRegionIterator::operator ++ (int)
+{
+ if (HaveRects()) ++m_current;
+}
+
+wxCoord wxRegionIterator::GetX() const
+{
+ if( !HaveRects() ) return 0;
+ return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
+}
+
+wxCoord wxRegionIterator::GetY() const
+{
+ if( !HaveRects() ) return 0;
+ return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
+}
+
+wxCoord wxRegionIterator::GetW() const
+{
+ if( !HaveRects() ) return -1;
+ return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
+}
+
+wxCoord wxRegionIterator::GetH() const
+{
+ if( !HaveRects() ) return -1;
+ return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
+}
+
+#endif
projects / wxWidgets.git / blobdiff