X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3379ed3789e405f874d9db757d95346f1d378795..82a16d7e5e5c83e95a4caa7314de2dbfbd1debdc:/src/gtk1/region.cpp?ds=sidebyside diff --git a/src/gtk1/region.cpp b/src/gtk1/region.cpp index 2c31667721..5807eabbee 100644 --- a/src/gtk1/region.cpp +++ b/src/gtk1/region.cpp @@ -2,7 +2,7 @@ // Name: 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 @@ -12,7 +12,7 @@ // declarations // ============================================================================ -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "region.h" #endif @@ -20,98 +20,73 @@ // headers // ---------------------------------------------------------------------------- -#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 +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" +#include "wx/region.h" #include "wx/log.h" +#include "wx/gtk/private.h" + +#ifndef __WXGTK20__ // ---------------------------------------------------------------------------- -// 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(); - - GdkRegion *m_region; -#if OLDCODE - wxList m_rects; -#endif -}; - -// ---------------------------------------------------------------------------- -// macros -// ---------------------------------------------------------------------------- + wxGdkRegion() { m_region = gdk_region_new(); } + ~wxGdkRegion() { gdk_region_destroy(m_region); } -#define M_REGIONDATA ((wxRegionRefData *)m_refData) -#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData)) + operator GdkRegion *() const { return m_region; } -IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject); -IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject); +private: + GdkRegion *m_region; +}; -// ============================================================================ -// implementation -// ============================================================================ +#endif // __WXGTK20__ // ---------------------------------------------------------------------------- -// wxRegionRefData +// wxRegionRefData: private class containing the information about the region // ---------------------------------------------------------------------------- -wxRegionRefData::wxRegionRefData() +class wxRegionRefData : public wxObjectRefData { - m_region = (GdkRegion *) NULL; -} +public: + wxRegionRefData() + { + m_region = NULL; + } -wxRegionRefData::wxRegionRefData(const wxRegionRefData& refData) -{ + wxRegionRefData(const wxRegionRefData& refData) + : wxObjectRefData() + { #ifdef __WXGTK20__ - m_region = gdk_region_copy(refData.m_region); + 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; + m_region = gdk_regions_union(wxGdkRegion(), refData.m_region); #endif + } -#if OLDCODE - wxNode *node = refData.m_rects.First(); - while (node) + ~wxRegionRefData() { - wxRect *r = (wxRect*)node->Data(); - m_rects.Append( (wxObject*) new wxRect(*r) ); - node = node->Next(); + if (m_region) + gdk_region_destroy( m_region ); } -#endif -} -wxRegionRefData::~wxRegionRefData() -{ - if (m_region) gdk_region_destroy( m_region ); + GdkRegion *m_region; +}; -#if OLDCODE - wxNode *node = m_rects.First(); - while (node) - { - wxRect *r = (wxRect*)node->Data(); - delete r; - node = node->Next(); - } -#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) // ---------------------------------------------------------------------------- // wxRegion construction @@ -119,103 +94,85 @@ wxRegionRefData::~wxRegionRefData() #define M_REGIONDATA ((wxRegionRefData *)m_refData) -wxRegion::wxRegion() +void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h) { -} - -wxRegion::wxRegion( 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; + + m_refData = new wxRegionRefData(); + #ifdef __WXGTK20__ - gdk_region_union_with_rect( reg, &rect ); - M_REGIONDATA->m_region = reg; + M_REGIONDATA->m_region = gdk_region_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_union_with_rect( wxGdkRegion(), &rect ); #endif } -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; + M_REGIONDATA->m_region = gdk_region_copy( region ); #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) ); + M_REGIONDATA->m_region = gdk_regions_union(wxGdkRegion(), region); #endif } -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() { + // m_refData unrefed in ~wxObject } -bool wxRegion::operator==( const wxRegion& region ) +wxObjectRefData *wxRegion::CreateRefData() 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); + return new wxRegionRefData; } -bool wxRegion::operator != ( const wxRegion& region ) +wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const { - return !(*this == region); + return new wxRegionRefData(*(wxRegionRefData *)data); } -void wxRegion::Unshare() +// ---------------------------------------------------------------------------- +// wxRegion comparison +// ---------------------------------------------------------------------------- + +bool wxRegion::operator==( const wxRegion& region ) { - 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 + 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); } // ---------------------------------------------------------------------------- @@ -229,26 +186,25 @@ 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 { - Unshare(); + AllocExclusive(); + + GdkRectangle rect; + rect.x = x; + rect.y = y; + rect.width = width; + rect.height = height; #ifdef __WXGTK20__ gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect ); @@ -259,10 +215,6 @@ bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) #endif } -#if OLDCODE - M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) ); -#endif - return TRUE; } @@ -276,7 +228,15 @@ bool wxRegion::Union( const wxRegion& region ) if (region.IsNull()) return FALSE; - Unshare(); + 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() ); @@ -286,16 +246,6 @@ bool wxRegion::Union( const wxRegion& 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; } @@ -309,26 +259,8 @@ bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) bool wxRegion::Intersect( const wxRect& rect ) { wxRegion reg( rect ); - return Intersect( reg ); -} - -// 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(); - -#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; + return Intersect( reg ); } bool wxRegion::Intersect( const wxRegion& region ) @@ -338,42 +270,20 @@ bool wxRegion::Intersect( const wxRegion& region ) if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - return TRUE; - } - - if ( !IntersectRegionOnly(region) ) - { - GetRectList()->Clear(); - + // intersecting with 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(); - } +#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; } @@ -396,11 +306,11 @@ 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; } - Unshare(); + AllocExclusive(); #ifdef __WXGTK20__ gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() ); @@ -432,14 +342,11 @@ bool wxRegion::Xor( const wxRegion& region ) if (!m_refData) { - m_refData = new wxRegionRefData(); - M_REGIONDATA->m_region = gdk_region_new(); - } - else - { - Unshare(); + return FALSE; } + AllocExclusive(); + #ifdef __WXGTK20__ gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() ); #else @@ -448,15 +355,17 @@ bool wxRegion::Xor( const wxRegion& 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::Offset( wxCoord x, wxCoord y ) +{ + if (!m_refData) + return FALSE; + + AllocExclusive(); + + gdk_region_offset( M_REGIONDATA->m_region, x, y ); return TRUE; } @@ -549,93 +458,11 @@ 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 - -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 +#ifndef __WXGTK20__ // the following structures must match the private structures // in X11 region code ( xc/lib/X11/region.h ) @@ -643,6 +470,8 @@ 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; }; @@ -652,52 +481,77 @@ struct _XRegion { _XBox *rects, extents; }; +#endif // GTK+ 1.x + class wxRIRefData: public wxObjectRefData { 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; + } } - } } - } +#endif // GTK+ 2.0/1.x } wxRegionIterator::wxRegionIterator() @@ -724,42 +578,48 @@ 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, _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; } @@ -772,5 +632,3 @@ wxRect wxRegionIterator::GetRect() const return r; } -#endif -