X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3d0c4d2e7bcedb4599c3cce0af19adf73b2f8ecd..571d2e0f232be3f7220c485c7e72eccfb87f2855:/src/gtk1/region.cpp diff --git a/src/gtk1/region.cpp b/src/gtk1/region.cpp index cb7a12beba..80fd038c6d 100644 --- a/src/gtk1/region.cpp +++ b/src/gtk1/region.cpp @@ -1,146 +1,170 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: gtk/region.cpp +// Name: src/gtk1/region.cpp // Purpose: // Author: Robert Roebling +// Modified: VZ at 05.10.00: use AllocExclusive(), comparison fixed // Id: $Id$ // Copyright: (c) 1998 Robert Roebling // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "region.h" -#endif +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/region.h" -#include -#include +#ifndef WX_PRECOMP + #include "wx/log.h" +#endif + +#include "wx/gtk1/private.h" -#define OLDCODE 0 -//----------------------------------------------------------------------------- -// wxRegion -//----------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- +// wxGdkRegion: creates a new region in ctor and destroys in dtor +// ---------------------------------------------------------------------------- -class wxRegionRefData: public wxObjectRefData +class wxGdkRegion { public: - wxRegionRefData(); - ~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; } + +private: + GdkRegion *m_region; }; -wxRegionRefData::wxRegionRefData() -{ - m_region = (GdkRegion *) NULL; -} -wxRegionRefData::~wxRegionRefData() +// ---------------------------------------------------------------------------- +// wxRegionRefData: private class containing the information about the region +// ---------------------------------------------------------------------------- + +class wxRegionRefData : public wxObjectRefData { - if (m_region) gdk_region_destroy( m_region ); +public: + wxRegionRefData() + { + m_region = NULL; + } -#if OLDCODE - wxNode *node = m_rects.First(); - while (node) + wxRegionRefData(const wxRegionRefData& refData) + : wxObjectRefData() { - wxRect *r = (wxRect*)node->Data(); - delete r; - node = node->Next(); + m_region = gdk_regions_union(wxGdkRegion(), refData.m_region); + } + + virtual ~wxRegionRefData() + { + 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) -IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject); +// ---------------------------------------------------------------------------- +// wxRegion construction +// ---------------------------------------------------------------------------- -wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) +#define M_REGIONDATA ((wxRegionRefData *)m_refData) + +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( const wxPoint& topLeft, const wxPoint& bottomRight ) +wxRegion::wxRegion( 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_regions_union(wxGdkRegion(), region); } -wxRegion::wxRegion( const wxRect& rect ) +wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle ) { + GdkPoint *gdkpoints = new GdkPoint[n]; + for ( size_t i = 0 ; i < n ; i++ ) + { + gdkpoints[i].x = points[i].x; + gdkpoints[i].y = points[i].y; + } + m_refData = new wxRegionRefData(); - GdkRegion *reg = gdk_region_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) ); -#endif + + delete [] gdkpoints; } -wxRegion::wxRegion() +wxRegion::~wxRegion() { + // m_refData unrefed in ~wxObject } -wxRegion::~wxRegion() +wxObjectRefData *wxRegion::CreateRefData() const { + return new wxRegionRefData; } -bool wxRegion::operator == ( const wxRegion& region ) +wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const { - return m_refData == region.m_refData; + return new wxRegionRefData(*(wxRegionRefData *)data); } -bool wxRegion::operator != ( const wxRegion& region ) +// ---------------------------------------------------------------------------- +// wxRegion comparison +// ---------------------------------------------------------------------------- + +bool wxRegion::operator==( const wxRegion& region ) const { - return m_refData != region.m_refData; + if (m_refData == region.m_refData) return TRUE; + + if (!m_refData || !region.m_refData) return FALSE; + + // compare the regions themselves, not the pointers to ref data! + return gdk_region_equal(M_REGIONDATA->m_region, + M_REGIONDATA_OF(region)->m_region); } +// ---------------------------------------------------------------------------- +// wxRegion operations +// ---------------------------------------------------------------------------- + void wxRegion::Clear() { UnRef(); @@ -148,37 +172,30 @@ void wxRegion::Clear() bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - 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 ( !width || !height ) + 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(x, y, width, height); } else { -#ifdef __WXGTK20__ - gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); -#else + AllocExclusive(); + + GdkRectangle rect; + rect.x = x; + rect.y = y; + rect.width = width; + rect.height = 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; } @@ -198,52 +215,30 @@ bool wxRegion::Union( const wxRegion& region ) 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 ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( x, y, width, height ); - Intersect( reg ); - return TRUE; + + return Intersect( reg ); } bool wxRegion::Intersect( const wxRect& rect ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( rect ); - Intersect( reg ); - return TRUE; + + return Intersect( reg ); } bool wxRegion::Intersect( const wxRegion& region ) @@ -253,45 +248,29 @@ bool wxRegion::Intersect( const wxRegion& region ) if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - return TRUE; + // intersecting with invalid region doesn't make sense + return FALSE; } - -#ifdef __WXGTK20__ - gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() ); -#else + + AllocExclusive(); + GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif + return TRUE; } bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( x, y, width, height ); - Subtract( reg ); - return TRUE; + return Subtract( reg ); } bool wxRegion::Subtract( const wxRect& rect ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( rect ); - Subtract( reg ); - return TRUE; + return Subtract( reg ); } bool wxRegion::Subtract( const wxRegion& region ) @@ -301,44 +280,29 @@ bool wxRegion::Subtract( const wxRegion& region ) if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); + // subtracting from an invalid region doesn't make sense + return FALSE; } -#ifdef __WXGTK20__ - gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() ); -#else + AllocExclusive(); + GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() ); gdk_region_destroy( M_REGIONDATA->m_region ); M_REGIONDATA->m_region = reg; -#endif + return TRUE; } bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( x, y, width, height ); - Xor( reg ); - return TRUE; + return Xor( reg ); } bool wxRegion::Xor( const wxRect& rect ) { - if (!m_refData) - { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - wxRegion reg( rect ); - Xor( reg ); - return TRUE; + return Xor( reg ); } bool wxRegion::Xor( const wxRegion& region ) @@ -348,54 +312,57 @@ bool wxRegion::Xor( const wxRegion& region ) if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); + return FALSE; } -#ifdef __WXGTK20__ - gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() ); -#else + AllocExclusive(); + GdkRegion *reg = gdk_regions_xor( 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; } -void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const +bool wxRegion::Offset( wxCoord x, wxCoord y ) { - x = 0; - y = 0; - w = -1; - h = -1; if (!m_refData) - return; + return FALSE; - GdkRectangle rect; - gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect ); - x = rect.x; - y = rect.y; - w = rect.width; - h = rect.height; + AllocExclusive(); + + gdk_region_offset( M_REGIONDATA->m_region, x, y ); + + return TRUE; +} + +// ---------------------------------------------------------------------------- +// wxRegion tests +// ---------------------------------------------------------------------------- + +void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const +{ + if ( m_refData ) + { + GdkRectangle rect; + gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect ); + x = rect.x; + y = rect.y; + w = rect.width; + h = rect.height; + } + else + { + x = 0; + y = 0; + w = -1; + h = -1; + } } wxRect wxRegion::GetBox() const { - wxCoord x = 0; - wxCoord y = 0; - wxCoord w = -1; - wxCoord h = -1; + wxCoord x, y, w, h; GetBox( x, y, w, h ); return wxRect( x, y, w, h ); } @@ -457,95 +424,9 @@ GdkRegion *wxRegion::GetRegion() const 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() -{ - 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 +// ---------------------------------------------------------------------------- // the following structures must match the private structures // in X11 region code ( xc/lib/X11/region.h ) @@ -553,65 +434,67 @@ wxCoord wxRegionIterator::GetH() const // this makes the Region type transparent // and we have access to the region rectangles +#include + struct _XBox { short x1, x2, y1, y2; }; - + struct _XRegion { long size , numRects; _XBox *rects, extents; }; + class wxRIRefData: public wxObjectRefData { public: + wxRIRefData() { Init(); } + virtual ~wxRIRefData(); - wxRIRefData() : m_rects(0), m_numRects(0){} - ~wxRIRefData(); + void CreateRects( const wxRegion& r ); + + 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; + } } - } } - } } -IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject); - wxRegionIterator::wxRegionIterator() { m_refData = new wxRIRefData(); @@ -636,44 +519,56 @@ 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, _T("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].x; } wxCoord wxRegionIterator::GetY() const { - if( !HaveRects() ) return 0; + wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].y; } wxCoord wxRegionIterator::GetW() const { - if( !HaveRects() ) return -1; + wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].width; } wxCoord wxRegionIterator::GetH() const { - if( !HaveRects() ) return -1; + wxCHECK_MSG( HaveRects(), 0, _T("invalid wxRegionIterator") ); + return ((wxRIRefData*)m_refData)->m_rects[m_current].height; } -#endif +wxRect wxRegionIterator::GetRect() const +{ + wxRect r; + if( HaveRects() ) + r = ((wxRIRefData*)m_refData)->m_rects[m_current]; + return r; +}