14f355c2b5
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22723 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
637 lines
14 KiB
C++
637 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// 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
|
|
// ============================================================================
|
|
|
|
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
|
|
#pragma implementation "region.h"
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// headers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
#include "wx/log.h"
|
|
|
|
#include "wx/region.h"
|
|
|
|
#include "wx/gtk/private.h"
|
|
|
|
#ifndef __WXGTK20__
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxGdkRegion: creates a new region in ctor and destroys in dtor
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class wxGdkRegion
|
|
{
|
|
public:
|
|
wxGdkRegion() { m_region = gdk_region_new(); }
|
|
~wxGdkRegion() { gdk_region_destroy(m_region); }
|
|
|
|
operator GdkRegion *() const { return m_region; }
|
|
|
|
private:
|
|
GdkRegion *m_region;
|
|
};
|
|
|
|
#endif // __WXGTK20__
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegionRefData: private class containing the information about the region
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class wxRegionRefData : public wxObjectRefData
|
|
{
|
|
public:
|
|
wxRegionRefData()
|
|
{
|
|
m_region = NULL;
|
|
}
|
|
|
|
wxRegionRefData(const wxRegionRefData& refData)
|
|
: wxObjectRefData()
|
|
{
|
|
#ifdef __WXGTK20__
|
|
m_region = gdk_region_copy(refData.m_region);
|
|
#else
|
|
m_region = gdk_regions_union(wxGdkRegion(), refData.m_region);
|
|
#endif
|
|
}
|
|
|
|
~wxRegionRefData()
|
|
{
|
|
if (m_region)
|
|
gdk_region_destroy( m_region );
|
|
}
|
|
|
|
GdkRegion *m_region;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// macros
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#define M_REGIONDATA ((wxRegionRefData *)m_refData)
|
|
#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
|
|
IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject)
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion construction
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#define M_REGIONDATA ((wxRegionRefData *)m_refData)
|
|
|
|
void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
|
|
{
|
|
GdkRectangle rect;
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = w;
|
|
rect.height = h;
|
|
|
|
m_refData = new wxRegionRefData();
|
|
|
|
#ifdef __WXGTK20__
|
|
M_REGIONDATA->m_region = gdk_region_rectangle( &rect );
|
|
#else
|
|
M_REGIONDATA->m_region = gdk_region_union_with_rect( wxGdkRegion(), &rect );
|
|
#endif
|
|
}
|
|
|
|
wxRegion::wxRegion( GdkRegion *region )
|
|
{
|
|
m_refData = new wxRegionRefData();
|
|
#ifdef __WXGTK20__
|
|
M_REGIONDATA->m_region = gdk_region_copy( region );
|
|
#else
|
|
M_REGIONDATA->m_region = gdk_regions_union(wxGdkRegion(), region);
|
|
#endif
|
|
}
|
|
|
|
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_polygon
|
|
(
|
|
gdkpoints,
|
|
n,
|
|
fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
|
|
: GDK_EVEN_ODD_RULE
|
|
);
|
|
|
|
M_REGIONDATA->m_region = reg;
|
|
|
|
delete [] gdkpoints;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion comparison
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxRegion::operator==( const wxRegion& region )
|
|
{
|
|
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();
|
|
}
|
|
|
|
bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
// workaround for a strange GTK/X11 bug: taking union with an empty
|
|
// rectangle results in an empty region which is definitely not what we
|
|
// want
|
|
if ( !width || !height )
|
|
return TRUE;
|
|
|
|
if ( !m_refData )
|
|
{
|
|
InitRect(x, y, width, height);
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
|
|
GdkRectangle rect;
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = width;
|
|
rect.height = height;
|
|
|
|
#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
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Union( const wxRect& rect )
|
|
{
|
|
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();
|
|
}
|
|
else
|
|
{
|
|
AllocExclusive();
|
|
}
|
|
|
|
#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
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
|
|
return Intersect( reg );
|
|
}
|
|
|
|
bool wxRegion::Intersect( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
|
|
return Intersect( reg );
|
|
}
|
|
|
|
bool wxRegion::Intersect( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
// intersecting with invalid region doesn't make sense
|
|
return FALSE;
|
|
}
|
|
|
|
AllocExclusive();
|
|
|
|
#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( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
return Subtract( reg );
|
|
}
|
|
|
|
bool wxRegion::Subtract( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
return Subtract( reg );
|
|
}
|
|
|
|
bool wxRegion::Subtract( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
// subtracting from an invalid region doesn't make sense
|
|
return FALSE;
|
|
}
|
|
|
|
AllocExclusive();
|
|
|
|
#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( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
|
|
{
|
|
wxRegion reg( x, y, width, height );
|
|
return Xor( reg );
|
|
}
|
|
|
|
bool wxRegion::Xor( const wxRect& rect )
|
|
{
|
|
wxRegion reg( rect );
|
|
return Xor( reg );
|
|
}
|
|
|
|
bool wxRegion::Xor( const wxRegion& region )
|
|
{
|
|
if (region.IsNull())
|
|
return FALSE;
|
|
|
|
if (!m_refData)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
AllocExclusive();
|
|
|
|
#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
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegion::Offset( wxCoord x, wxCoord y )
|
|
{
|
|
if (!m_refData)
|
|
return FALSE;
|
|
|
|
AllocExclusive();
|
|
|
|
gdk_region_offset( M_REGIONDATA->m_region, x, y );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegion tests
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
|
|
{
|
|
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, y, w, h;
|
|
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( 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( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
|
|
{
|
|
if (!m_refData)
|
|
return wxOutRegion;
|
|
|
|
GdkRectangle rect;
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = w;
|
|
rect.height = h;
|
|
GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect );
|
|
switch (res)
|
|
{
|
|
case GDK_OVERLAP_RECTANGLE_IN: return wxInRegion;
|
|
case GDK_OVERLAP_RECTANGLE_OUT: return wxOutRegion;
|
|
case GDK_OVERLAP_RECTANGLE_PART: return wxPartRegion;
|
|
}
|
|
return wxOutRegion;
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains(const wxPoint& pt) const
|
|
{
|
|
return Contains( pt.x, pt.y );
|
|
}
|
|
|
|
wxRegionContain wxRegion::Contains(const wxRect& rect) const
|
|
{
|
|
return Contains( rect.x, rect.y, rect.width, rect.height );
|
|
}
|
|
|
|
GdkRegion *wxRegion::GetRegion() const
|
|
{
|
|
if (!m_refData)
|
|
return (GdkRegion*) NULL;
|
|
|
|
return M_REGIONDATA->m_region;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRegionIterator
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#ifndef __WXGTK20__
|
|
|
|
// 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
|
|
|
|
#include <gdk/gdkprivate.h>
|
|
|
|
struct _XBox {
|
|
short x1, x2, y1, y2;
|
|
};
|
|
|
|
struct _XRegion {
|
|
long size , numRects;
|
|
_XBox *rects, extents;
|
|
};
|
|
|
|
#endif // GTK+ 1.x
|
|
|
|
class wxRIRefData: public wxObjectRefData
|
|
{
|
|
public:
|
|
wxRIRefData() { Init(); }
|
|
virtual ~wxRIRefData();
|
|
|
|
void CreateRects( const wxRegion& r );
|
|
|
|
void Init() { m_rects = NULL; m_numRects = 0; }
|
|
|
|
wxRect *m_rects;
|
|
size_t m_numRects;
|
|
};
|
|
|
|
wxRIRefData::~wxRIRefData()
|
|
{
|
|
delete [] m_rects;
|
|
}
|
|
|
|
void wxRIRefData::CreateRects( const wxRegion& region )
|
|
{
|
|
delete [] m_rects;
|
|
|
|
Init();
|
|
|
|
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)
|
|
{
|
|
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
|
|
}
|
|
|
|
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& wxRegionIterator::operator ++ ()
|
|
{
|
|
if (HaveRects())
|
|
++m_current;
|
|
|
|
return *this;
|
|
}
|
|
|
|
wxRegionIterator wxRegionIterator::operator ++ (int)
|
|
{
|
|
wxRegionIterator tmp = *this;
|
|
if (HaveRects())
|
|
++m_current;
|
|
|
|
return tmp;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetX() const
|
|
{
|
|
wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") );
|
|
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetY() const
|
|
{
|
|
wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") );
|
|
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetW() const
|
|
{
|
|
wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") );
|
|
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
|
|
}
|
|
|
|
wxCoord wxRegionIterator::GetH() const
|
|
{
|
|
wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") );
|
|
|
|
return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
|
|
}
|
|
|
|
wxRect wxRegionIterator::GetRect() const
|
|
{
|
|
wxRect r;
|
|
if( HaveRects() )
|
|
r = ((wxRIRefData*)m_refData)->m_rects[m_current];
|
|
|
|
return r;
|
|
}
|
|
|