X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e0f0b19775b1d04f6f356b1a3edb30d4b845e649..ab7049776d45e622f621dd06216a4c1a1ad34b15:/src/gtk1/region.cpp diff --git a/src/gtk1/region.cpp b/src/gtk1/region.cpp index c0a7af603f..bc33b74551 100644 --- a/src/gtk1/region.cpp +++ b/src/gtk1/region.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: gtk/region.cpp +// Name: src/gtk1/region.cpp // Purpose: // Author: Robert Roebling // Modified: VZ at 05.10.00: use AllocExclusive(), comparison fixed @@ -12,107 +12,75 @@ // declarations // ============================================================================ -#ifdef __GNUG__ - #pragma implementation "region.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- -#include "wx/region.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -#include -#include +#include "wx/region.h" -// Unfortunately the new way of implementing the region iterator -// doesn't work with GTK+ 2.0 or above (can't access a Region in -// GdkPrivateRegion) -#ifdef __WXGTK20__ -#define OLDCODE 1 -#else -#define OLDCODE 0 +#ifndef WX_PRECOMP + #include "wx/log.h" #endif -#include "wx/log.h" +#include "wx/gtk1/private.h" + // ---------------------------------------------------------------------------- -// wxRegionRefData: private class containing the information about the region +// wxGdkRegion: creates a new region in ctor and destroys in dtor // ---------------------------------------------------------------------------- -class wxRegionRefData : public wxObjectRefData +class wxGdkRegion { public: - wxRegionRefData(); - wxRegionRefData(const wxRegionRefData& refData); - virtual ~wxRegionRefData(); + wxGdkRegion() { m_region = gdk_region_new(); } + ~wxGdkRegion() { gdk_region_destroy(m_region); } - GdkRegion *m_region; -#if OLDCODE - wxList m_rects; -#endif -}; + operator GdkRegion *() const { return m_region; } -// ---------------------------------------------------------------------------- -// macros -// ---------------------------------------------------------------------------- - -#define M_REGIONDATA ((wxRegionRefData *)m_refData) -#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData)) +private: + GdkRegion *m_region; +}; -IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject); -IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject); - -// ============================================================================ -// implementation -// ============================================================================ // ---------------------------------------------------------------------------- -// wxRegionRefData +// wxRegionRefData: private class containing the information about the region // ---------------------------------------------------------------------------- -wxRegionRefData::wxRegionRefData() -{ - m_region = (GdkRegion *) NULL; -} - -wxRegionRefData::wxRegionRefData(const wxRegionRefData& refData) +class wxRegionRefData : public wxGDIRefData { -#ifdef __WXGTK20__ - m_region = gdk_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; -#endif - -#if OLDCODE - wxNode *node = refData.m_rects.First(); - while (node) +public: + wxRegionRefData() { - wxRect *r = (wxRect*)node->Data(); - m_rects.Append( (wxObject*) new wxRect(*r) ); - node = node->Next(); + m_region = NULL; } -#endif -} -wxRegionRefData::~wxRegionRefData() -{ - if (m_region) - gdk_region_destroy( m_region ); + wxRegionRefData(const wxRegionRefData& refData) + : wxGDIRefData() + { + m_region = gdk_regions_union(wxGdkRegion(), refData.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) + gdk_region_destroy( m_region ); } -#endif -} + + GdkRegion *m_region; +}; + +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- + +#define M_REGIONDATA ((wxRegionRefData *)m_refData) +#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData)) + +IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject) +IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject) // ---------------------------------------------------------------------------- // wxRegion construction @@ -122,27 +90,24 @@ wxRegionRefData::~wxRegionRefData() 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; -#else - M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect ); - gdk_region_destroy( reg ); -#endif -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x, y, w, h) ); -#endif + m_refData = new wxRegionRefData(); + + M_REGIONDATA->m_region = gdk_region_union_with_rect( wxGdkRegion(), &rect ); } -wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle ) +wxRegion::wxRegion( GdkRegion *region ) +{ + m_refData = new wxRegionRefData(); + M_REGIONDATA->m_region = gdk_regions_union(wxGdkRegion(), region); +} + +wxRegion::wxRegion( size_t n, const wxPoint *points, wxPolygonFillMode fillStyle ) { GdkPoint *gdkpoints = new GdkPoint[n]; for ( size_t i = 0 ; i < n ; i++ ) @@ -171,31 +136,26 @@ wxRegion::~wxRegion() // m_refData unrefed in ~wxObject } -wxObjectRefData *wxRegion::CreateRefData() const +wxGDIRefData *wxRegion::CreateGDIRefData() const { return new wxRegionRefData; } -wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const +wxGDIRefData *wxRegion::CloneGDIRefData(const wxGDIRefData *data) const { return new wxRegionRefData(*(wxRegionRefData *)data); } + // ---------------------------------------------------------------------------- // wxRegion comparison // ---------------------------------------------------------------------------- -bool wxRegion::operator==( const wxRegion& region ) +bool wxRegion::DoIsEqual(const wxRegion& region) const { - // compare the regions themselves, not the pointers to ref data! return gdk_region_equal(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region); } -bool wxRegion::operator != ( const wxRegion& region ) -{ - return !(*this == region); -} - // ---------------------------------------------------------------------------- // wxRegion operations // ---------------------------------------------------------------------------- @@ -205,239 +165,122 @@ 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 { AllocExclusive(); -#ifdef __WXGTK20__ - gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); -#else + GdkRectangle rect; + rect.x = r.x; + rect.y = r.y; + rect.width = r.width; + rect.height = r.height; + GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif } -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) ); -#endif - return TRUE; } -bool wxRegion::Union( const wxRect& rect ) -{ - return Union( rect.x, rect.y, rect.width, rect.height ); -} - -bool wxRegion::Union( const wxRegion& region ) +bool wxRegion::DoUnionWithRegion( const wxRegion& region ) { if (region.IsNull()) return FALSE; - AllocExclusive(); + if (!m_refData) + { + m_refData = new wxRegionRefData(); + M_REGIONDATA->m_region = gdk_region_new(); + } + else + { + AllocExclusive(); + } -#ifdef __WXGTK20__ - gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() ); -#else GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif - -#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; } -bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) +bool wxRegion::DoIntersect( const wxRegion& region ) { - wxRegion reg( x, y, width, height ); - - return Intersect( reg ); -} + wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") ); -bool wxRegion::Intersect( const wxRect& rect ) -{ - wxRegion reg( rect ); - - return Intersect( reg ); -} + if (!m_refData) + { + // intersecting with invalid region doesn't make sense + 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) -{ AllocExclusive(); -#ifdef __WXGTK20__ - gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() ); -#else GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif return TRUE; } -bool wxRegion::Intersect( const wxRegion& region ) +bool wxRegion::DoSubtract( const wxRegion& region ) { - if (region.IsNull()) - return FALSE; + wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") ); if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - return TRUE; - } - - if ( !IntersectRegionOnly(region) ) - { - GetRectList()->Clear(); - + // subtracting from an invalid region doesn't make sense return FALSE; } - // we need to update the rect list as well -#if OLDCODE - 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; - } + AllocExclusive(); - node = node->Next(); - } -#endif // OLDCODE + GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() ); + gdk_region_destroy( M_REGIONDATA->m_region ); + M_REGIONDATA->m_region = reg; return TRUE; } -bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) -{ - wxRegion reg( x, y, width, height ); - return Subtract( reg ); -} - -bool wxRegion::Subtract( const wxRect& rect ) +bool wxRegion::DoXor( const wxRegion& region ) { - wxRegion reg( rect ); - return Subtract( reg ); -} - -bool wxRegion::Subtract( const wxRegion& region ) -{ - if (region.IsNull()) - return FALSE; + wxCHECK_MSG( region.IsOk(), false, wxT("invalid region") ); if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); + return FALSE; } AllocExclusive(); -#ifdef __WXGTK20__ - gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() ); -#else - GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() ); + GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif return TRUE; } -bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) -{ - wxRegion reg( x, y, width, height ); - return Xor( reg ); -} - -bool wxRegion::Xor( const wxRect& rect ) -{ - wxRegion reg( rect ); - return Xor( reg ); -} - -bool wxRegion::Xor( const wxRegion& region ) +bool wxRegion::DoOffset( wxCoord x, wxCoord y ) { - if (region.IsNull()) - return FALSE; - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - else - { - AllocExclusive(); - } + return FALSE; -#ifdef __WXGTK20__ - gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() ); -#else - GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() ); - gdk_region_destroy( M_REGIONDATA->m_region ); - M_REGIONDATA->m_region = reg; -#endif + AllocExclusive(); -#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 // OLDCODE + gdk_region_offset( M_REGIONDATA->m_region, x, y ); return TRUE; } @@ -446,7 +289,7 @@ bool wxRegion::Xor( const wxRegion& region ) // 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 ) { @@ -456,6 +299,8 @@ void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const y = rect.y; w = rect.width; h = rect.height; + + return true; } else { @@ -463,29 +308,12 @@ 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 ); -} - -bool wxRegion::Offset( wxCoord x, wxCoord y ) -{ - if (!m_refData) - return FALSE; - - AllocExclusive(); - - gdk_region_offset( M_REGIONDATA->m_region, x, y ); - - return TRUE; + return false; + } } -bool wxRegion::Empty() const +bool wxRegion::IsEmpty() const { if (!m_refData) return TRUE; @@ -493,7 +321,7 @@ bool wxRegion::Empty() const return gdk_region_empty( M_REGIONDATA->m_region ); } -wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const +wxRegionContain wxRegion::DoContainsPoint( wxCoord x, wxCoord y ) const { if (!m_refData) return wxOutRegion; @@ -504,16 +332,16 @@ wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const return wxOutRegion; } -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; GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect ); switch (res) { @@ -524,118 +352,26 @@ wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) return wxOutRegion; } -wxRegionContain wxRegion::Contains(const wxPoint& pt) const -{ - return Contains( pt.x, pt.y ); -} - -wxRegionContain wxRegion::Contains(const wxRect& rect) const -{ - return Contains( rect.x, rect.y, rect.width, rect.height ); -} - GdkRegion *wxRegion::GetRegion() const { if (!m_refData) - return (GdkRegion*) NULL; + return 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 - -wxRegionIterator::wxRegionIterator() -{ - Reset(); -} - -wxRegionIterator::wxRegionIterator( const wxRegion& region ) -{ - Reset(region); -} - -void wxRegionIterator::Reset( const wxRegion& region ) -{ - m_region = region; - Reset(); -} - -wxRegionIterator::operator bool () const -{ - return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number(); -} - -bool wxRegionIterator::HaveRects() const -{ - 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; -} - -#else // !OLDCODE - // the following structures must match the private structures // in X11 region code ( xc/lib/X11/region.h ) // this makes the Region type transparent // and we have access to the region rectangles +#include + struct _XBox { short x1, x2, y1, y2; }; @@ -645,52 +381,54 @@ struct _XRegion { _XBox *rects, extents; }; -class wxRIRefData: public wxObjectRefData + +class wxRIRefData : public wxGDIRefData { public: + wxRIRefData() { Init(); } + virtual ~wxRIRefData(); + + void CreateRects( const wxRegion& r ); - wxRIRefData() : m_rects(0), m_numRects(0){} - ~wxRIRefData(); + void Init() { m_rects = NULL; m_numRects = 0; } wxRect *m_rects; size_t m_numRects; - - void CreateRects( const wxRegion& r ); }; wxRIRefData::~wxRIRefData() { - delete m_rects; + 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; ixregion; + if (r) + { + m_numRects = r->numRects; + if (m_numRects) { - _XBox &xr= r->rects[i]; - wxRect&wr= m_rects[i]; - wr.x = xr.x1; - wr.y = xr.y1; - wr.width = xr.x2-xr.x1; - wr.height= xr.y2-xr.y1; + m_rects = new wxRect[m_numRects]; + for (size_t i=0; i < m_numRects; ++i) + { + _XBox &xr = r->rects[i]; + wxRect &wr = m_rects[i]; + wr.x = xr.x1; + wr.y = xr.y1; + wr.width = xr.x2-xr.x1; + wr.height = xr.y2-xr.y1; + } } - } } - } } wxRegionIterator::wxRegionIterator() @@ -717,42 +455,48 @@ bool wxRegionIterator::HaveRects() const return m_current < ((wxRIRefData*)m_refData)->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; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].x; } wxCoord wxRegionIterator::GetY() const { - if( !HaveRects() ) return 0; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].y; } wxCoord wxRegionIterator::GetW() const { - if( !HaveRects() ) return -1; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].width; } wxCoord wxRegionIterator::GetH() const { - if( !HaveRects() ) return -1; + wxCHECK_MSG( HaveRects(), 0, wxT("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].height; } @@ -764,6 +508,3 @@ wxRect wxRegionIterator::GetRect() const return r; } - -#endif // OLDCODE/!OLDCODE -