c89f5c02b1
equal objects (same m_refData).
Implemented new ref counting for wxBrush, wxPen
and wxColour (in addition to wxRegion). Also
inlined some more functions and implemented
real comparisons.
Corrected refresh code to update GTK's window-less
widgets if overdrawn after a wxWindow::Refresh().
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13999 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
614 lines
14 KiB
C++
614 lines
14 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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// Modified: VZ at 05.10.00: use AllocExclusive(), comparison fixed
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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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// ============================================================================
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// declarations
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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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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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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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#include "wx/log.h"
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// ----------------------------------------------------------------------------
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// wxRegionRefData: private class containing the information about the region
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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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{
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m_region = NULL;
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}
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wxRegionRefData(const wxRegionRefData& refData)
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{
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#ifdef __WXGTK20__
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m_region = gdk_region_copy(refData.m_region);
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#else
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m_region = gdk_region_new();
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GdkRegion *regCopy = gdk_regions_union(m_region, refData.m_region);
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gdk_region_destroy(m_region);
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m_region = regCopy;
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#endif
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}
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~wxRegionRefData()
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{
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if (m_region)
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gdk_region_destroy( m_region );
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}
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GdkRegion *m_region;
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};
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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#define M_REGIONDATA ((wxRegionRefData *)m_refData)
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#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
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IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject);
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IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
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// ----------------------------------------------------------------------------
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// wxRegion construction
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// ----------------------------------------------------------------------------
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#define M_REGIONDATA ((wxRegionRefData *)m_refData)
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void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
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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 = w;
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rect.height = h;
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m_refData = new wxRegionRefData();
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#ifdef __WXGTK20__
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M_REGIONDATA->m_region = gdk_region_rectangle( rect );
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#else
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GdkRegion *reg = gdk_region_new();
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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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wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle )
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{
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GdkPoint *gdkpoints = new GdkPoint[n];
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for ( size_t i = 0 ; i < n ; i++ )
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{
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gdkpoints[i].x = points[i].x;
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gdkpoints[i].y = points[i].y;
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}
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m_refData = new wxRegionRefData();
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GdkRegion* reg = gdk_region_polygon
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(
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gdkpoints,
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n,
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fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
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: GDK_EVEN_ODD_RULE
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);
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M_REGIONDATA->m_region = reg;
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delete [] gdkpoints;
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}
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wxRegion::~wxRegion()
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{
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// m_refData unrefed in ~wxObject
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}
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wxObjectRefData *wxRegion::CreateRefData() const
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{
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return new wxRegionRefData;
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}
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wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
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{
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return new wxRegionRefData(*(wxRegionRefData *)data);
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}
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// ----------------------------------------------------------------------------
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// wxRegion comparison
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// ----------------------------------------------------------------------------
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bool wxRegion::operator==( const wxRegion& region )
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{
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if (m_refData == region.m_refData) return TRUE;
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if (!m_refData || !region.m_refData) return FALSE;
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// compare the regions themselves, not the pointers to ref data!
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return gdk_region_equal(M_REGIONDATA->m_region,
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M_REGIONDATA_OF(region)->m_region);
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}
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// ----------------------------------------------------------------------------
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// wxRegion operations
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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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#ifdef __WXGTK20__
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M_REGIONDATA->m_region = gdk_region_rectangle( rect );
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#else
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GdkRegion *reg = gdk_region_new();
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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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AllocExclusive();
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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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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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else
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{
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AllocExclusive();
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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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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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wxRegion reg( x, y, width, height );
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return Intersect( reg );
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}
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bool wxRegion::Intersect( const wxRect& rect )
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{
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wxRegion reg( rect );
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return Intersect( reg );
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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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// leave here
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return TRUE;
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}
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else
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{
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AllocExclusive();
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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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wxRegion reg( x, y, width, height );
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return Subtract( reg );
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}
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bool wxRegion::Subtract( const wxRect& rect )
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{
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wxRegion reg( rect );
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return Subtract( reg );
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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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else
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{
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AllocExclusive();
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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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wxRegion reg( x, y, width, height );
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return Xor( reg );
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}
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bool wxRegion::Xor( const wxRect& rect )
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{
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wxRegion reg( rect );
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return Xor( reg );
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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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else
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{
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AllocExclusive();
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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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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// wxRegion tests
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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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if ( m_refData )
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{
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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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else
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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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}
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}
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wxRect wxRegion::GetBox() const
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{
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wxCoord x, y, w, h;
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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::Offset( wxCoord x, wxCoord y )
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{
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if (!m_refData)
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return FALSE;
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AllocExclusive();
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gdk_region_offset( M_REGIONDATA->m_region, x, y );
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return TRUE;
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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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// ----------------------------------------------------------------------------
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// wxRegionIterator
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// ----------------------------------------------------------------------------
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#ifndef __WXGTK20__
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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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#include <gdk/gdkprivate.h>
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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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#endif
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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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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) return;
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#ifdef __WXGTK20__
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GdkRectangles *gdkrects = NULL;
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gint numRects = 0;
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gdk_region_get_rectangles( gdkregion, &gdkrect, &numRects );
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m_numRects = numRects;
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if (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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GdkRectangle &gr = gdkrects[i];
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wxRect &wr = m_rects[i];
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wr.x = gr.x;
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wr.y = gr.y;
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wr.width = gr.width;
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wr.height = gr.height;
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}
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}
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g_delete( gdkrects ); // delete []
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#else
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Region r = ((GdkRegionPrivate *)gdkregion)->xregion;
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if (r)
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{
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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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#endif
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}
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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;
|
|
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;
|
|
}
|
|
|
|
wxRect wxRegionIterator::GetRect() const
|
|
{
|
|
wxRect r;
|
|
if( HaveRects() )
|
|
r = ((wxRIRefData*)m_refData)->m_rects[m_current];
|
|
|
|
return r;
|
|
}
|
|
|