d52e91c980
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9367 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
687 lines
15 KiB
C++
687 lines
15 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: gtk/region.cpp
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// Purpose:
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// Author: Robert Roebling
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "region.h"
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#endif
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#include "wx/region.h"
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#include <gdk/gdk.h>
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#include <gtk/gtk.h>
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// Unfortunately the new way of implementing the region iterator
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// doesn't work with GTK+ 2.0 or above (can't access a Region in
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// GdkPrivateRegion)
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#ifdef __WXGTK20__
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#define OLDCODE 1
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#else
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#define OLDCODE 0
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#endif
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//-----------------------------------------------------------------------------
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// wxRegion
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//-----------------------------------------------------------------------------
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class wxRegionRefData: public wxObjectRefData
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{
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public:
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wxRegionRefData();
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~wxRegionRefData();
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GdkRegion *m_region;
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#if OLDCODE
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wxList m_rects;
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#endif
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};
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wxRegionRefData::wxRegionRefData()
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{
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m_region = (GdkRegion *) NULL;
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}
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wxRegionRefData::~wxRegionRefData()
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{
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if (m_region) gdk_region_destroy( m_region );
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#if OLDCODE
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wxNode *node = m_rects.First();
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while (node)
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{
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wxRect *r = (wxRect*)node->Data();
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delete r;
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node = node->Next();
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}
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#endif
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}
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//-----------------------------------------------------------------------------
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#define M_REGIONDATA ((wxRegionRefData *)m_refData)
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IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
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wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
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{
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m_refData = new wxRegionRefData();
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GdkRegion *reg = gdk_region_new();
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GdkRectangle rect;
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rect.x = x;
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rect.y = y;
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rect.width = w;
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rect.height = h;
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#ifdef __WXGTK20__
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gdk_region_union_with_rect( reg, &rect );
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M_REGIONDATA->m_region = reg;
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#else
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M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
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gdk_region_destroy( reg );
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#endif
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#if OLDCODE
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
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#endif
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}
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wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
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{
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m_refData = new wxRegionRefData();
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GdkRegion *reg = gdk_region_new();
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GdkRectangle rect;
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rect.x = topLeft.x;
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rect.y = topLeft.y;
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rect.width = bottomRight.x - rect.x;
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rect.height = bottomRight.y - rect.y;
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#ifdef __WXGTK20__
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gdk_region_union_with_rect( reg, &rect );
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M_REGIONDATA->m_region = reg;
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#else
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M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
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gdk_region_destroy( reg );
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#endif
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#if OLDCODE
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
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#endif
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}
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wxRegion::wxRegion( const wxRect& rect )
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{
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m_refData = new wxRegionRefData();
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GdkRegion *reg = gdk_region_new();
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GdkRectangle g_rect;
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g_rect.x = rect.x;
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g_rect.y = rect.y;
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g_rect.width = rect.width;
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g_rect.height = rect.height;
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#ifdef __WXGTK20__
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gdk_region_union_with_rect( reg, &g_rect );
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M_REGIONDATA->m_region = reg;
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#else
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M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
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gdk_region_destroy( reg );
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#endif
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#if OLDCODE
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
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#endif
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}
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wxRegion::wxRegion()
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{
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}
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wxRegion::~wxRegion()
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{
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}
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bool wxRegion::operator == ( const wxRegion& region )
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{
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return m_refData == region.m_refData;
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}
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bool wxRegion::operator != ( const wxRegion& region )
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{
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return m_refData != region.m_refData;
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}
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void wxRegion::Clear()
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{
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UnRef();
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}
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bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
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{
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GdkRectangle rect;
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rect.x = x;
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rect.y = y;
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rect.width = width;
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rect.height = height;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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GdkRegion *reg = gdk_region_new();
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#ifdef __WXGTK20__
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gdk_region_union_with_rect( reg, &rect );
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M_REGIONDATA->m_region = reg;
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#else
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M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
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gdk_region_destroy( reg );
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#endif
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}
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else
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{
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#ifdef __WXGTK20__
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gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
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#else
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GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
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gdk_region_destroy( M_REGIONDATA->m_region );
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M_REGIONDATA->m_region = reg;
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#endif
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}
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#if OLDCODE
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
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#endif
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return TRUE;
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}
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bool wxRegion::Union( const wxRect& rect )
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{
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return Union( rect.x, rect.y, rect.width, rect.height );
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}
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bool wxRegion::Union( const wxRegion& region )
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{
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if (region.IsNull())
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return FALSE;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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#ifdef __WXGTK20__
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gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
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#else
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GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
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gdk_region_destroy( M_REGIONDATA->m_region );
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M_REGIONDATA->m_region = reg;
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#endif
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#if OLDCODE
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wxNode *node = region.GetRectList()->First();
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while (node)
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{
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wxRect *r = (wxRect*)node->Data();
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
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node = node->Next();
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}
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#endif
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return TRUE;
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}
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bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( x, y, width, height );
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Intersect( reg );
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return TRUE;
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}
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bool wxRegion::Intersect( const wxRect& rect )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( rect );
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Intersect( reg );
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return TRUE;
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}
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bool wxRegion::Intersect( const wxRegion& region )
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{
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if (region.IsNull())
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return FALSE;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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return TRUE;
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}
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#ifdef __WXGTK20__
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gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
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#else
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GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() );
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gdk_region_destroy( M_REGIONDATA->m_region );
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M_REGIONDATA->m_region = reg;
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#endif
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return TRUE;
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}
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bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( x, y, width, height );
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Subtract( reg );
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return TRUE;
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}
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bool wxRegion::Subtract( const wxRect& rect )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( rect );
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Subtract( reg );
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return TRUE;
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}
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bool wxRegion::Subtract( const wxRegion& region )
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{
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if (region.IsNull())
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return FALSE;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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#ifdef __WXGTK20__
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gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
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#else
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GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
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gdk_region_destroy( M_REGIONDATA->m_region );
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M_REGIONDATA->m_region = reg;
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#endif
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return TRUE;
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}
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bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( x, y, width, height );
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Xor( reg );
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return TRUE;
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}
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bool wxRegion::Xor( const wxRect& rect )
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{
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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wxRegion reg( rect );
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Xor( reg );
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return TRUE;
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}
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bool wxRegion::Xor( const wxRegion& region )
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{
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if (region.IsNull())
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return FALSE;
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if (!m_refData)
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{
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m_refData = new wxRegionRefData();
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M_REGIONDATA->m_region = gdk_region_new();
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}
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#ifdef __WXGTK20__
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gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
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#else
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GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
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gdk_region_destroy( M_REGIONDATA->m_region );
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M_REGIONDATA->m_region = reg;
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#endif
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#if OLDCODE
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wxNode *node = region.GetRectList()->First();
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while (node)
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{
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wxRect *r = (wxRect*)node->Data();
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M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
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node = node->Next();
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}
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#endif
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return TRUE;
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}
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void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
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{
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x = 0;
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y = 0;
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w = -1;
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h = -1;
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if (!m_refData)
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return;
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GdkRectangle rect;
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gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
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x = rect.x;
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y = rect.y;
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w = rect.width;
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h = rect.height;
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}
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wxRect wxRegion::GetBox() const
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{
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wxCoord x = 0;
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wxCoord y = 0;
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wxCoord w = -1;
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wxCoord h = -1;
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GetBox( x, y, w, h );
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return wxRect( x, y, w, h );
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}
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bool wxRegion::Empty() const
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{
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if (!m_refData)
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return TRUE;
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return gdk_region_empty( M_REGIONDATA->m_region );
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}
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wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
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{
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if (!m_refData)
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return wxOutRegion;
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if (gdk_region_point_in( M_REGIONDATA->m_region, x, y ))
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return wxInRegion;
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else
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return wxOutRegion;
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}
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wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
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{
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if (!m_refData)
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return wxOutRegion;
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GdkRectangle rect;
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rect.x = x;
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rect.y = y;
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rect.width = w;
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rect.height = h;
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GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect );
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switch (res)
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{
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case GDK_OVERLAP_RECTANGLE_IN: return wxInRegion;
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case GDK_OVERLAP_RECTANGLE_OUT: return wxOutRegion;
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case GDK_OVERLAP_RECTANGLE_PART: return wxPartRegion;
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}
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return wxOutRegion;
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}
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wxRegionContain wxRegion::Contains(const wxPoint& pt) const
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{
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return Contains( pt.x, pt.y );
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}
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wxRegionContain wxRegion::Contains(const wxRect& rect) const
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{
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return Contains( rect.x, rect.y, rect.width, rect.height );
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}
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GdkRegion *wxRegion::GetRegion() const
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{
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if (!m_refData)
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return (GdkRegion*) NULL;
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return M_REGIONDATA->m_region;
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}
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wxList *wxRegion::GetRectList() const
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{
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#if OLDCODE
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if (!m_refData)
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return (wxList*) NULL;
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return &(M_REGIONDATA->m_rects);
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#else
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return (wxList*) NULL;
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#endif
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}
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//-----------------------------------------------------------------------------
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// wxRegionIterator
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//-----------------------------------------------------------------------------
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#if OLDCODE
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IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
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wxRegionIterator::wxRegionIterator()
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{
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Reset();
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}
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wxRegionIterator::wxRegionIterator( const wxRegion& region )
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{
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Reset(region);
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}
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void wxRegionIterator::Reset( const wxRegion& region )
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{
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m_region = region;
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Reset();
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}
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wxRegionIterator::operator bool () const
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{
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return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
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}
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bool wxRegionIterator::HaveRects() const
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{
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return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
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}
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void wxRegionIterator::operator ++ ()
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{
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if (HaveRects()) ++m_current;
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}
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void wxRegionIterator::operator ++ (int)
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{
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if (HaveRects()) ++m_current;
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}
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wxCoord wxRegionIterator::GetX() const
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{
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wxNode *node = m_region.GetRectList()->Nth( m_current );
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if (!node) return 0;
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wxRect *r = (wxRect*)node->Data();
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return r->x;
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}
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wxCoord wxRegionIterator::GetY() const
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{
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wxNode *node = m_region.GetRectList()->Nth( m_current );
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if (!node) return 0;
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wxRect *r = (wxRect*)node->Data();
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return r->y;
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}
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wxCoord wxRegionIterator::GetW() const
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{
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wxNode *node = m_region.GetRectList()->Nth( m_current );
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if (!node) return 0;
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wxRect *r = (wxRect*)node->Data();
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return r->width;
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}
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wxCoord wxRegionIterator::GetH() const
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{
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wxNode *node = m_region.GetRectList()->Nth( m_current );
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if (!node) return 0;
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wxRect *r = (wxRect*)node->Data();
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return r->height;
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}
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#else
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// the following structures must match the private structures
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// in X11 region code ( xc/lib/X11/region.h )
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// this makes the Region type transparent
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// and we have access to the region rectangles
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struct _XBox {
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short x1, x2, y1, y2;
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};
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struct _XRegion {
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long size , numRects;
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_XBox *rects, extents;
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};
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class wxRIRefData: public wxObjectRefData
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{
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public:
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wxRIRefData() : m_rects(0), m_numRects(0){}
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~wxRIRefData();
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wxRect *m_rects;
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size_t m_numRects;
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void CreateRects( const wxRegion& r );
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};
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wxRIRefData::~wxRIRefData()
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{
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delete m_rects;
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}
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#include <gdk/gdkprivate.h>
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void wxRIRefData::CreateRects( const wxRegion& region )
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{
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if( m_rects )
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delete m_rects;
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m_rects = 0;
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m_numRects= 0;
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GdkRegion *gdkregion= region.GetRegion();
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if( gdkregion ){
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Region r= ((GdkRegionPrivate *)gdkregion)->xregion;
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if( r ){
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m_numRects= r->numRects;
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if( m_numRects )
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{
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m_rects= new wxRect[m_numRects];
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for( size_t i=0; i<m_numRects; ++i )
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{
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_XBox &xr= r->rects[i];
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wxRect&wr= m_rects[i];
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wr.x = xr.x1;
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wr.y = xr.y1;
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wr.width = xr.x2-xr.x1;
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wr.height= xr.y2-xr.y1;
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}
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}
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}
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}
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}
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IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
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wxRegionIterator::wxRegionIterator()
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{
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m_refData = new wxRIRefData();
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Reset();
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}
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wxRegionIterator::wxRegionIterator( const wxRegion& region )
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{
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m_refData = new wxRIRefData();
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Reset(region);
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}
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void wxRegionIterator::Reset( const wxRegion& region )
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{
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m_region = region;
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((wxRIRefData*)m_refData)->CreateRects(region);
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Reset();
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}
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bool wxRegionIterator::HaveRects() const
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{
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return m_current < ((wxRIRefData*)m_refData)->m_numRects;
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}
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wxRegionIterator::operator bool () const
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{
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return HaveRects();
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}
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void wxRegionIterator::operator ++ ()
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{
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if (HaveRects()) ++m_current;
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}
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void wxRegionIterator::operator ++ (int)
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{
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if (HaveRects()) ++m_current;
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}
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wxCoord wxRegionIterator::GetX() const
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{
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if( !HaveRects() ) return 0;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
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}
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wxCoord wxRegionIterator::GetY() const
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{
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if( !HaveRects() ) return 0;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
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}
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wxCoord wxRegionIterator::GetW() const
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{
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if( !HaveRects() ) return -1;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
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}
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wxCoord wxRegionIterator::GetH() const
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{
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if( !HaveRects() ) return -1;
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return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
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}
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#endif
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