X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1e6feb95a79834836e88143b15d9f424ebe79621..bb996f289574defb0ae4339ae8e46ff3cf6fa54c:/src/gtk/region.cpp?ds=sidebyside diff --git a/src/gtk/region.cpp b/src/gtk/region.cpp index 2c4be00d6d..3c53a68c88 100644 --- a/src/gtk/region.cpp +++ b/src/gtk/region.cpp @@ -1,8 +1,8 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: gtk/region.cpp +// Name: src/gtk/region.cpp // Purpose: // Author: Robert Roebling -// Modified: VZ at 05.10.00: use Unshare(), comparison fixed +// Modified: VZ at 05.10.00: use AllocExclusive(), comparison fixed // Id: $Id$ // Copyright: (c) 1998 Robert Roebling // Licence: wxWindows licence @@ -12,210 +12,203 @@ // declarations // ============================================================================ -#ifdef __GNUG__ - #pragma implementation "region.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + #include "wx/region.h" #include -#include - -// Unfortunately the new way of implementing the region iterator -// doesn't work with GTK+ 2.0 or above (can't access a Region in -// GdkPrivateRegion) -#ifdef __WXGTK20__ -#define OLDCODE 1 -#else -#define OLDCODE 0 -#endif - -#include "wx/log.h" // ---------------------------------------------------------------------------- // wxRegionRefData: private class containing the information about the region // ---------------------------------------------------------------------------- -class wxRegionRefData : public wxObjectRefData +class wxRegionRefData : public wxGDIRefData { public: - wxRegionRefData(); - wxRegionRefData(const wxRegionRefData& refData); - virtual ~wxRegionRefData(); - - GdkRegion *m_region; -#if OLDCODE - wxList m_rects; -#endif -}; - -// ---------------------------------------------------------------------------- -// 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); - -// ============================================================================ -// implementation -// ============================================================================ - -// ---------------------------------------------------------------------------- -// wxRegionRefData -// ---------------------------------------------------------------------------- - -wxRegionRefData::wxRegionRefData() -{ - m_region = (GdkRegion *) NULL; -} + wxRegionRefData() + { + m_region = NULL; + } -wxRegionRefData::wxRegionRefData(const wxRegionRefData& refData) -{ -#ifdef __WXGTK20__ - m_region = gdk_region_copy(refData.m_region); + wxRegionRefData(const wxRegionRefData& refData) + : wxGDIRefData() + { +#ifdef __WXGTK3__ + m_region = cairo_region_copy(refData.m_region); #else - m_region = gdk_region_new(); - GdkRegion *regCopy = gdk_regions_union(m_region, refData.m_region); - gdk_region_destroy(m_region); - m_region = regCopy; + m_region = gdk_region_copy(refData.m_region); #endif - - wxNode *node = refData.m_rects.First(); - while (node) - { - wxRect *r = (wxRect*)node->Data(); - m_rects.Append( (wxObject*) new wxRect(*r) ); - node = node->Next(); } -} -wxRegionRefData::~wxRegionRefData() -{ - if (m_region) gdk_region_destroy( m_region ); - -#if OLDCODE - wxNode *node = m_rects.First(); - while (node) + virtual ~wxRegionRefData() { - wxRect *r = (wxRect*)node->Data(); - delete r; - node = node->Next(); + if (m_region) + { +#ifdef __WXGTK3__ + cairo_region_destroy(m_region); +#else + gdk_region_destroy( m_region ); +#endif + } } + +#ifdef __WXGTK3__ + cairo_region_t* m_region; +#else + GdkRegion *m_region; #endif -} +}; // ---------------------------------------------------------------------------- -// wxRegion construction +// macros // ---------------------------------------------------------------------------- -#define M_REGIONDATA ((wxRegionRefData *)m_refData) +#define M_REGIONDATA static_cast(m_refData) +#define M_REGIONDATA_OF(r) static_cast(r.m_refData) -IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject); +IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject) +IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject) -wxRegion::wxRegion() -{ -} +// ---------------------------------------------------------------------------- +// wxRegion construction +// ---------------------------------------------------------------------------- -wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) +void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h) { - m_refData = new wxRegionRefData(); - GdkRegion *reg = gdk_region_new(); GdkRectangle rect; rect.x = x; rect.y = y; rect.width = w; rect.height = h; -#ifdef __WXGTK20__ - gdk_region_union_with_rect( reg, &rect ); - M_REGIONDATA->m_region = reg; + + m_refData = new wxRegionRefData(); + +#ifdef __WXGTK3__ + M_REGIONDATA->m_region = cairo_region_create_rectangle(&rect); #else - M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect ); - gdk_region_destroy( reg ); -#endif -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) ); + M_REGIONDATA->m_region = gdk_region_rectangle( &rect ); #endif } -wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight ) +#ifndef __WXGTK3__ +wxRegion::wxRegion(const GdkRegion* region) { m_refData = new wxRegionRefData(); - GdkRegion *reg = gdk_region_new(); - GdkRectangle rect; - rect.x = topLeft.x; - rect.y = topLeft.y; - rect.width = bottomRight.x - rect.x; - rect.height = bottomRight.y - rect.y; -#ifdef __WXGTK20__ - gdk_region_union_with_rect( reg, &rect ); - M_REGIONDATA->m_region = reg; -#else - M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect ); - gdk_region_destroy( reg ); -#endif -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) ); -#endif + M_REGIONDATA->m_region = gdk_region_copy(const_cast(region)); } +#endif + +wxRegion::wxRegion( size_t n, const wxPoint *points, + wxPolygonFillMode fillStyle ) +{ +#ifdef __WXGTK3__ + // Make a cairo path from the points, draw it onto an image surface, use + // gdk_cairo_region_create_from_surface() to get a cairo region + + // need at least 3 points to make a useful polygon + if (n < 3) + return; + // get bounding rect + int min_x = points[0].x; + int max_x = min_x; + int min_y = points[0].y; + int max_y = min_y; + size_t i; + for (i = 1; i < n; i++) + { + const int x = points[i].x; + if (min_x > x) + min_x = x; + else if (max_x < x) + max_x = x; + const int y = points[i].y; + if (min_y > y) + min_y = y; + else if (max_y < y) + max_y = y; + } + const int w = max_x - min_x + 1; + const int h = max_y - min_y + 1; + // make surface just big enough to contain polygon (A1 is native format + // for gdk_cairo_region_create_from_surface) + cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_A1, w, h); + memset(cairo_image_surface_get_data(surface), 0, cairo_image_surface_get_stride(surface) * h); + cairo_surface_mark_dirty(surface); + cairo_surface_set_device_offset(surface, -min_x, -min_y); + cairo_t* cr = cairo_create(surface); + cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE); + if (fillStyle == wxODDEVEN_RULE) + cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD); + // make path + cairo_move_to(cr, points[0].x, points[0].y); + for (i = 1; i < n; i++) + cairo_line_to(cr, points[i].x, points[i].y); + cairo_close_path(cr); + cairo_fill(cr); + cairo_destroy(cr); + cairo_surface_flush(surface); + m_refData = new wxRegionRefData; + M_REGIONDATA->m_region = gdk_cairo_region_create_from_surface(surface); + cairo_surface_destroy(surface); +#else + 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; + } -wxRegion::wxRegion( const wxRect& rect ) -{ m_refData = new wxRegionRefData(); - GdkRegion *reg = gdk_region_new(); - GdkRectangle g_rect; - g_rect.x = rect.x; - g_rect.y = rect.y; - g_rect.width = rect.width; - g_rect.height = rect.height; -#ifdef __WXGTK20__ - gdk_region_union_with_rect( reg, &g_rect ); + + GdkRegion* reg = gdk_region_polygon + ( + gdkpoints, + n, + fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE + : GDK_EVEN_ODD_RULE + ); + M_REGIONDATA->m_region = reg; -#else - M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect ); - gdk_region_destroy( reg ); -#endif -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) ); + + delete [] gdkpoints; #endif } wxRegion::~wxRegion() { + // m_refData unrefed in ~wxObject } -bool wxRegion::operator==( const wxRegion& region ) +wxGDIRefData *wxRegion::CreateGDIRefData() const { - // VZ: compare the regions themselves, not the pointers to ref data! - return gdk_region_equal(M_REGIONDATA->m_region, - M_REGIONDATA_OF(region)->m_region); + // should never be called + wxFAIL; + return NULL; } -bool wxRegion::operator != ( const wxRegion& region ) +wxGDIRefData *wxRegion::CloneGDIRefData(const wxGDIRefData *data) const { - return !(*this == region); + return new wxRegionRefData(*static_cast(data)); } -void wxRegion::Unshare() +// ---------------------------------------------------------------------------- +// wxRegion comparison +// ---------------------------------------------------------------------------- + +bool wxRegion::DoIsEqual(const wxRegion& region) const { - if ( !m_refData ) - { - m_refData = new wxRegionRefData; - M_REGIONDATA->m_region = gdk_region_new(); - } - else if ( m_refData->GetRefCount() > 1 ) - { - wxRegionRefData *refData = new wxRegionRefData(*M_REGIONDATA); - UnRef(); - m_refData = refData; - } - //else: we're not shared +#ifdef __WXGTK3__ + return cairo_region_equal( + M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); +#else + return gdk_region_equal(M_REGIONDATA->m_region, + M_REGIONDATA_OF(region)->m_region) != 0; +#endif } // ---------------------------------------------------------------------------- @@ -227,253 +220,150 @@ void wxRegion::Clear() UnRef(); } -bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) +bool wxRegion::DoUnionWithRect(const wxRect& r) { - GdkRectangle rect; - rect.x = x; - rect.y = y; - rect.width = width; - rect.height = height; - if (!m_refData) + // 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 ( r.IsEmpty() ) + return true; + + if ( !m_refData ) { - m_refData = new wxRegionRefData(); - GdkRegion *reg = gdk_region_new(); -#ifdef __WXGTK20__ - gdk_region_union_with_rect( reg, &rect ); - M_REGIONDATA->m_region = reg; -#else - M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect ); - gdk_region_destroy( reg ); -#endif + InitRect(r.x, r.y, r.width, r.height); } else { - Unshare(); + AllocExclusive(); -#ifdef __WXGTK20__ - gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); + GdkRectangle rect; + rect.x = r.x; + rect.y = r.y; + rect.width = r.width; + rect.height = r.height; + +#ifdef __WXGTK3__ + cairo_region_union_rectangle(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; + gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); #endif } -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) ); -#endif - - return TRUE; + return true; } -bool wxRegion::Union( const wxRect& rect ) +bool wxRegion::DoUnionWithRegion( const wxRegion& region ) { - return Union( rect.x, rect.y, rect.width, rect.height ); -} - -bool wxRegion::Union( const wxRegion& region ) -{ - if (region.IsNull()) - return FALSE; - - Unshare(); - -#ifdef __WXGTK20__ - gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() ); -#else - GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() ); - gdk_region_destroy( M_REGIONDATA->m_region ); - M_REGIONDATA->m_region = reg; -#endif - -#if OLDCODE - wxNode *node = region.GetRectList()->First(); - while (node) + if (region.m_refData == NULL) + { } + else if (m_refData == NULL) { - wxRect *r = (wxRect*)node->Data(); - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) ); - node = node->Next(); + m_refData = new wxRegionRefData(*M_REGIONDATA_OF(region)); } + else + { + AllocExclusive(); +#ifdef __WXGTK3__ + cairo_region_union(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); +#else + gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() ); #endif + } - return TRUE; -} - -bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) -{ - wxRegion reg( x, y, width, height ); - - return Intersect( reg ); + return true; } -bool wxRegion::Intersect( const wxRect& rect ) +bool wxRegion::DoIntersect( const wxRegion& region ) { - wxRegion reg( rect ); - return Intersect( reg ); -} + if (region.m_refData == NULL || m_refData == NULL) + return false; -// this helper function just computes the region intersection without updating -// the list of rectangles each region maintaints: this allows us to call it -// from Intersect() itself without going into infinite recursion as we would -// if we called Intersect() itself recursively -bool wxRegion::IntersectRegionOnly(const wxRegion& region) -{ - Unshare(); + AllocExclusive(); -#ifdef __WXGTK20__ - gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() ); +#ifdef __WXGTK3__ + cairo_region_intersect(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); #else - GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() ); - gdk_region_destroy( M_REGIONDATA->m_region ); - M_REGIONDATA->m_region = reg; + gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() ); #endif - return TRUE; + return true; } -bool wxRegion::Intersect( const wxRegion& region ) +bool wxRegion::DoSubtract( const wxRegion& region ) { - if (region.IsNull()) - return FALSE; - - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - return TRUE; - } + if (region.m_refData == NULL || m_refData == NULL) + return false; - if ( !IntersectRegionOnly(region) ) - { - GetRectList()->Clear(); - - return FALSE; - } - - // we need to update the rect list as well - wxList& list = *GetRectList(); - wxNode *node = list.First(); - while (node) - { - wxRect *r = (wxRect*)node->Data(); - - wxRegion regCopy = region; - if ( regCopy.IntersectRegionOnly(*r) ) - { - // replace the node with the intersection - *r = regCopy.GetBox(); - } - else - { - // TODO remove the rect from the list - r->width = 0; - r->height = 0; - } - - node = node->Next(); - } - - return TRUE; -} + AllocExclusive(); -bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) -{ - wxRegion reg( x, y, width, height ); - return Subtract( reg ); -} +#ifdef __WXGTK3__ + cairo_region_subtract(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); +#else + gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() ); +#endif -bool wxRegion::Subtract( const wxRect& rect ) -{ - wxRegion reg( rect ); - return Subtract( reg ); + return true; } -bool wxRegion::Subtract( const wxRegion& region ) +bool wxRegion::DoXor( const wxRegion& region ) { - if (region.IsNull()) - return FALSE; - - if (!m_refData) + if (region.m_refData == NULL) + { } + else if (m_refData == NULL) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); + // XOR-ing with an invalid region is the same as XOR-ing with an empty + // one, i.e. it is simply a copy. + m_refData = new wxRegionRefData(*M_REGIONDATA_OF(region)); } + else + { + AllocExclusive(); - Unshare(); - -#ifdef __WXGTK20__ - gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() ); +#ifdef __WXGTK3__ + cairo_region_xor(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); #else - GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() ); - gdk_region_destroy( M_REGIONDATA->m_region ); - M_REGIONDATA->m_region = reg; + gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() ); #endif + } - return TRUE; -} - -bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) -{ - wxRegion reg( x, y, width, height ); - return Xor( reg ); + return true; } -bool wxRegion::Xor( const wxRect& rect ) +bool wxRegion::DoOffset( wxCoord x, wxCoord y ) { - wxRegion reg( rect ); - return Xor( reg ); -} + wxCHECK_MSG( m_refData, false, wxS("invalid region") ); -bool wxRegion::Xor( const wxRegion& region ) -{ - if (region.IsNull()) - return FALSE; + AllocExclusive(); - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - else - { - Unshare(); - } - -#ifdef __WXGTK20__ - gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() ); +#ifdef __WXGTK3__ + cairo_region_translate(M_REGIONDATA->m_region, x, y); #else - GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() ); - gdk_region_destroy( M_REGIONDATA->m_region ); - M_REGIONDATA->m_region = reg; + gdk_region_offset( M_REGIONDATA->m_region, x, y ); #endif -#if OLDCODE - wxNode *node = region.GetRectList()->First(); - while (node) - { - wxRect *r = (wxRect*)node->Data(); - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) ); - node = node->Next(); - } -#endif - - return TRUE; + return true; } // ---------------------------------------------------------------------------- // wxRegion tests // ---------------------------------------------------------------------------- -void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const +bool wxRegion::DoGetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const { if ( m_refData ) { GdkRectangle rect; +#ifdef __WXGTK3__ + cairo_region_get_extents(M_REGIONDATA->m_region, &rect); +#else gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect ); +#endif x = rect.x; y = rect.y; w = rect.width; h = rect.height; + + return true; } else { @@ -481,45 +371,50 @@ void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const 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 ); + return false; + } } -bool wxRegion::Empty() const +bool wxRegion::IsEmpty() const { - if (!m_refData) - return TRUE; - - return gdk_region_empty( M_REGIONDATA->m_region ); +#ifdef __WXGTK3__ + return m_refData == NULL || cairo_region_is_empty(M_REGIONDATA->m_region); +#else + return m_refData == NULL || gdk_region_empty(M_REGIONDATA->m_region); +#endif } -wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const +wxRegionContain wxRegion::DoContainsPoint( wxCoord x, wxCoord y ) const { - if (!m_refData) +#ifdef __WXGTK3__ + if (m_refData == NULL || !cairo_region_contains_point(M_REGIONDATA->m_region, x, y)) +#else + if (m_refData == NULL || !gdk_region_point_in(M_REGIONDATA->m_region, x, y)) +#endif return wxOutRegion; - if (gdk_region_point_in( M_REGIONDATA->m_region, x, y )) - return wxInRegion; - else - return wxOutRegion; + return wxInRegion; } -wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const +wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const { if (!m_refData) return wxOutRegion; GdkRectangle rect; - rect.x = x; - rect.y = y; - rect.width = w; - rect.height = h; + rect.x = r.x; + rect.y = r.y; + rect.width = r.width; + rect.height = r.height; +#ifdef __WXGTK3__ + switch (cairo_region_contains_rectangle(M_REGIONDATA->m_region, &rect)) + { + case CAIRO_REGION_OVERLAP_IN: return wxInRegion; + case CAIRO_REGION_OVERLAP_PART: return wxPartRegion; + default: break; + } +#else GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect ); switch (res) { @@ -527,255 +422,179 @@ wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) case GDK_OVERLAP_RECTANGLE_OUT: return wxOutRegion; case GDK_OVERLAP_RECTANGLE_PART: return wxPartRegion; } +#endif 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 ); -} - +#ifdef __WXGTK3__ +cairo_region_t* wxRegion::GetRegion() const +#else GdkRegion *wxRegion::GetRegion() const +#endif { if (!m_refData) - return (GdkRegion*) NULL; + return NULL; return M_REGIONDATA->m_region; } -wxList *wxRegion::GetRectList() const -{ -#if OLDCODE - if (!m_refData) - return (wxList*) NULL; - - return &(M_REGIONDATA->m_rects); -#else - return (wxList*) NULL; -#endif -} - // ---------------------------------------------------------------------------- // wxRegionIterator // ---------------------------------------------------------------------------- -#if OLDCODE - -IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject); - wxRegionIterator::wxRegionIterator() { + Init(); Reset(); } wxRegionIterator::wxRegionIterator( const wxRegion& region ) { + Init(); Reset(region); } -void wxRegionIterator::Reset( const wxRegion& region ) +void wxRegionIterator::Init() { - m_region = region; - Reset(); + m_rects = NULL; + m_numRects = 0; } -wxRegionIterator::operator bool () const +wxRegionIterator::~wxRegionIterator() { - return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number(); + wxDELETEA(m_rects); } -bool wxRegionIterator::HaveRects() const +void wxRegionIterator::CreateRects( const wxRegion& region ) { - return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number(); -} - -void wxRegionIterator::operator ++ () -{ - if (HaveRects()) ++m_current; -} - -void wxRegionIterator::operator ++ (int) -{ - if (HaveRects()) ++m_current; -} - -wxCoord wxRegionIterator::GetX() const -{ - wxNode *node = m_region.GetRectList()->Nth( m_current ); - if (!node) return 0; - wxRect *r = (wxRect*)node->Data(); - return r->x; -} - -wxCoord wxRegionIterator::GetY() const -{ - wxNode *node = m_region.GetRectList()->Nth( m_current ); - if (!node) return 0; - wxRect *r = (wxRect*)node->Data(); - return r->y; -} - -wxCoord wxRegionIterator::GetW() const -{ - wxNode *node = m_region.GetRectList()->Nth( m_current ); - if (!node) return 0; - wxRect *r = (wxRect*)node->Data(); - return r->width; -} - -wxCoord wxRegionIterator::GetH() const -{ - wxNode *node = m_region.GetRectList()->Nth( m_current ); - if (!node) return 0; - wxRect *r = (wxRect*)node->Data(); - return r->height; -} + wxDELETEA(m_rects); + m_numRects = 0; +#ifdef __WXGTK3__ + cairo_region_t* cairoRegion = region.GetRegion(); + if (cairoRegion == NULL) + return; + m_numRects = cairo_region_num_rectangles(cairoRegion); + + if (m_numRects) + { + m_rects = new wxRect[m_numRects]; + for (int i = 0; i < m_numRects; i++) + { + GdkRectangle gr; + cairo_region_get_rectangle(cairoRegion, i, &gr); + wxRect &wr = m_rects[i]; + wr.x = gr.x; + wr.y = gr.y; + wr.width = gr.width; + wr.height = gr.height; + } + } #else + GdkRegion *gdkregion = region.GetRegion(); + if (!gdkregion) + return; -// the following structures must match the private structures -// in X11 region code ( xc/lib/X11/region.h ) - -// this makes the Region type transparent -// and we have access to the region rectangles - -struct _XBox { - short x1, x2, y1, y2; -}; - -struct _XRegion { - long size , numRects; - _XBox *rects, extents; -}; - -class wxRIRefData: public wxObjectRefData -{ -public: - - wxRIRefData() : m_rects(0), m_numRects(0){} - ~wxRIRefData(); - - wxRect *m_rects; - size_t m_numRects; + GdkRectangle* gdkrects; + gdk_region_get_rectangles(gdkregion, &gdkrects, &m_numRects); - void CreateRects( const wxRegion& r ); -}; - -wxRIRefData::~wxRIRefData() -{ - delete m_rects; -} - -#include - -void wxRIRefData::CreateRects( const wxRegion& region ) -{ - if( m_rects ) - delete m_rects; - m_rects = 0; - m_numRects= 0; - GdkRegion *gdkregion= region.GetRegion(); - if( gdkregion ){ - Region r= ((GdkRegionPrivate *)gdkregion)->xregion; - if( r ){ - m_numRects= r->numRects; - if( m_numRects ) - { - m_rects= new wxRect[m_numRects]; - for( size_t i=0; irects[i]; - wxRect&wr= m_rects[i]; - wr.x = xr.x1; - wr.y = xr.y1; - wr.width = xr.x2-xr.x1; - wr.height= xr.y2-xr.y1; + GdkRectangle &gr = gdkrects[i]; + wxRect &wr = m_rects[i]; + wr.x = gr.x; + wr.y = gr.y; + wr.width = gr.width; + wr.height = gr.height; } - } } - } -} - -IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject); - -wxRegionIterator::wxRegionIterator() -{ - m_refData = new wxRIRefData(); - Reset(); -} - -wxRegionIterator::wxRegionIterator( const wxRegion& region ) -{ - m_refData = new wxRIRefData(); - Reset(region); + g_free( gdkrects ); +#endif } void wxRegionIterator::Reset( const wxRegion& region ) { m_region = region; - ((wxRIRefData*)m_refData)->CreateRects(region); + CreateRects(region); Reset(); } bool wxRegionIterator::HaveRects() const { - return m_current < ((wxRIRefData*)m_refData)->m_numRects; + return m_current < m_numRects; } -wxRegionIterator::operator bool () const +wxRegionIterator& wxRegionIterator::operator ++ () { - return HaveRects(); -} + if (HaveRects()) + ++m_current; -void wxRegionIterator::operator ++ () -{ - if (HaveRects()) ++m_current; + return *this; } -void wxRegionIterator::operator ++ (int) +wxRegionIterator wxRegionIterator::operator ++ (int) { - if (HaveRects()) ++m_current; + wxRegionIterator tmp = *this; + + if (HaveRects()) + ++m_current; + + return tmp; } wxCoord wxRegionIterator::GetX() const { - if( !HaveRects() ) return 0; - return ((wxRIRefData*)m_refData)->m_rects[m_current].x; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + + return m_rects[m_current].x; } wxCoord wxRegionIterator::GetY() const { - if( !HaveRects() ) return 0; - return ((wxRIRefData*)m_refData)->m_rects[m_current].y; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + + return m_rects[m_current].y; } wxCoord wxRegionIterator::GetW() const { - if( !HaveRects() ) return -1; - return ((wxRIRefData*)m_refData)->m_rects[m_current].width; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + + return m_rects[m_current].width; } wxCoord wxRegionIterator::GetH() const { - if( !HaveRects() ) return -1; - return ((wxRIRefData*)m_refData)->m_rects[m_current].height; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + + return m_rects[m_current].height; } wxRect wxRegionIterator::GetRect() const { wxRect r; - wxNode *node = m_region.GetRectList()->Nth( m_current ); - - if (node) - r = *((wxRect*)node->Data()); + if( HaveRects() ) + r = m_rects[m_current]; return r; } -#endif +wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& ri) +{ + if (this != &ri) + { + wxDELETEA(m_rects); + m_current = ri.m_current; + m_numRects = ri.m_numRects; + if ( m_numRects ) + { + m_rects = new wxRect[m_numRects]; + memcpy(m_rects, ri.m_rects, m_numRects * sizeof m_rects[0]); + } + } + return *this; +}