[wxWidgets.git] / src / x11 / region.cpp

/////////////////////////////////////////////////////////////////////////////
// File:      region.cpp
// Purpose:   Region class
// Author:    Markus Holzem/Julian Smart
// Created:   Fri Oct 24 10:46:34 MET 1997
// RCS-ID:      $Id$
// Copyright: (c) 1997 Markus Holzem/Julian Smart
// Licence:   wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "region.h"
#endif

#include "wx/region.h"
#include "wx/gdicmn.h"
#include "wx/window.h"

#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include "wx/x11/private.h"
#include "X11/Xutil.h"
#ifdef __VMS__
#pragma message enable nosimpint
#endif


    IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
    IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)

// ----------------------------------------------------------------------------
// list types
// ----------------------------------------------------------------------------

#include "wx/listimpl.cpp"

WX_DEFINE_LIST(wxRectList);

//-----------------------------------------------------------------------------
// wxRegionRefData implementation
//-----------------------------------------------------------------------------

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
public:
    wxRegionRefData()
    {
        m_region = XCreateRegion();
        m_usingRects = FALSE;
        m_rects = (wxRect*) NULL;
        m_rectCount = 0;
    }

    wxRegionRefData(const wxRegionRefData& data)
    {
        m_region = XCreateRegion();
        m_rects = (wxRect*) NULL;
        m_rectCount = 0;
        XUnionRegion(m_region, data.m_region, m_region);

        SetRects(data.m_rectCount, data.m_rects);
    }

    ~wxRegionRefData()
    {
        XDestroyRegion(m_region);
        DeleteRects();
    }

    wxRect* GetRects() { return m_rects; };
    void SetRects(const wxRectList& rectList);
    void SetRects(int count, const wxRect* rects);
    bool UsingRects() const { return m_usingRects; }
    int GetRectCount() const { return m_rectCount; }

    void DeleteRects();

    Region      m_region;
    wxRect*     m_rects;
    int         m_rectCount;
    bool        m_usingRects;  // TRUE if we're using the above.
};

void wxRegionRefData::SetRects(const wxRectList& rectList)
{
    DeleteRects();
    m_usingRects = (rectList.Number() > 0);
    if (m_usingRects)
    {
      m_rectCount = rectList.Number();
      m_rects = new wxRect[m_rectCount];
    }

    wxRectList::Node* node = rectList.GetFirst();
    int i = 0;
    while (node) {
        wxRect* rect = node->GetData();
        m_rects[i] = * rect;
        node = node->GetNext();
        i ++;
    }
}

void wxRegionRefData::SetRects(int count, const wxRect* rects)
{
    DeleteRects();
    m_usingRects = (count > 0);
    if (m_usingRects)
    {
      m_rectCount = count;
      m_rects = new wxRect[m_rectCount];
      int i;
      for (i = 0; i < m_rectCount; i++)
        m_rects[i] = rects[i];
    }
}

void wxRegionRefData::DeleteRects()
{
   if (m_rects)
   {
      delete[] m_rects;
      m_rects = (wxRect*) NULL;
   }
   m_rectCount = 0;
   m_usingRects = FALSE;
 }

#define M_REGION (((wxRegionRefData*)m_refData)->m_region)

//-----------------------------------------------------------------------------
// wxRegion
//-----------------------------------------------------------------------------

/*!
 * Create an empty region.
 */
wxRegion::wxRegion()
{
}

wxRegion::wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
    m_refData = new wxRegionRefData;

    XRectangle rect;
    rect.x        = x;
    rect.y        = y;
    rect.width    = w;
    rect.height = h;
    XUnionRectWithRegion(&rect, M_REGION, M_REGION);
}

wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
{
    m_refData = new wxRegionRefData;

    XRectangle rect;
    rect.x        = topLeft.x;
    rect.y        = topLeft.y;
    rect.width    = bottomRight.x - topLeft.x;
    rect.height = bottomRight.y - topLeft.y;
    XUnionRectWithRegion(&rect, M_REGION, M_REGION);
}

wxRegion::wxRegion(const wxRect& rect)
{
    m_refData = new wxRegionRefData;

    XRectangle rect1;
    rect1.x        = rect.x;
    rect1.y        = rect.y;
    rect1.width    = rect.width;
    rect1.height = rect.height;
    XUnionRectWithRegion(&rect1, M_REGION, M_REGION);
}

/*!
 * Destroy the region.
 */
wxRegion::~wxRegion()
{
    // m_refData unrefed in ~wxObject
}

// Get the internal region handle
WXRegion wxRegion::GetXRegion() const
{
    wxASSERT( m_refData !=NULL );

    return (WXRegion) ((wxRegionRefData*)m_refData)->m_region;
}

//-----------------------------------------------------------------------------
//# Modify region
//-----------------------------------------------------------------------------

//! Clear current region
void wxRegion::Clear()
{
    UnRef();
}

//! Combine rectangle (x, y, w, h) with this.
bool wxRegion::Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op)
{
    // Don't change shared data
    if (!m_refData) {
        m_refData = new wxRegionRefData();
    } else if (m_refData->GetRefCount() > 1) {
        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
        UnRef();
        m_refData = new wxRegionRefData(*ref);
    }
    // If ref count is 1, that means it's 'ours' anyway so no action.

    Region rectRegion = XCreateRegion();

    XRectangle rect;
    rect.x        = x;
    rect.y        = y;
    rect.width    = width;
    rect.height = height;
    XUnionRectWithRegion(&rect, rectRegion, rectRegion);

    switch (op)
    {
        case wxRGN_AND:
            XIntersectRegion(M_REGION, rectRegion, M_REGION);
            break ;
        case wxRGN_OR:
            XUnionRegion(M_REGION, rectRegion, M_REGION);
            break ;
        case wxRGN_XOR:
            // TODO
            break ;
        case wxRGN_DIFF:
            // TODO
            break ;
        case wxRGN_COPY: // Don't have to do this one
        default:
            // TODO
            break ;
    }

    return FALSE;
}

//! Union /e region with this.
bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
{
    if (region.Empty())
        return FALSE;

    // Don't change shared data
    if (!m_refData) {
        m_refData = new wxRegionRefData();
    } else    if (m_refData->GetRefCount() > 1) {
        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
        UnRef();
        m_refData = new wxRegionRefData(*ref);
    }

    switch (op)
    {
        case wxRGN_AND:
            XIntersectRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
                 M_REGION);
            break ;
        case wxRGN_OR:
            XUnionRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
                 M_REGION);
            break ;
        case wxRGN_XOR:
            // TODO
            break ;
        case wxRGN_DIFF:
            // TODO
            break ;
        case wxRGN_COPY: // Don't have to do this one
        default:
            // TODO
            break ;
    }

  return FALSE;
}

bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
{
    return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
}

//-----------------------------------------------------------------------------
//# Information on region
//-----------------------------------------------------------------------------

// Outer bounds of region
void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
{
    if (m_refData) {
        XRectangle rect;
        XClipBox(M_REGION, &rect);
        x = rect.x;
        y = rect.y;
        w = rect.width;
        h = rect.height;
    } else {
        x = y = w = h = 0;
    }
}

wxRect wxRegion::GetBox() const
{
    wxCoord x, y, w, h;
    GetBox(x, y, w, h);
    return wxRect(x, y, w, h);
}

// Is region empty?
bool wxRegion::Empty() const
{
    return m_refData ? XEmptyRegion(M_REGION) : TRUE;
}

//-----------------------------------------------------------------------------
//# Tests
//-----------------------------------------------------------------------------

// Does the region contain the point (x,y)?
wxRegionContain wxRegion::Contains(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y)) const
{
    if (!m_refData)
        return wxOutRegion;

    // TODO. Return wxInRegion if within region.
    if (0)
        return wxInRegion;
    return wxOutRegion;
}

// Does the region contain the point pt?
wxRegionContain wxRegion::Contains(const wxPoint& pt) const
{
    if (!m_refData)
        return wxOutRegion;

    return XPointInRegion(M_REGION, pt.x, pt.y) ? wxInRegion : wxOutRegion;
}

// Does the region contain the rectangle (x, y, w, h)?
wxRegionContain wxRegion::Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const
{
    if (!m_refData)
        return wxOutRegion;

    switch (XRectInRegion(M_REGION, x, y, w, h)) {
        case RectangleIn:    return wxInRegion;
        case RectanglePart: return wxPartRegion;
    }
    return wxOutRegion;
}

// Does the region contain the rectangle rect
wxRegionContain wxRegion::Contains(const wxRect& rect) const
{
    if (!m_refData)
        return wxOutRegion;

    wxCoord x, y, w, h;
    x = rect.x;
    y = rect.y;
    w = rect.GetWidth();
    h = rect.GetHeight();
    return Contains(x, y, w, h);
}

bool wxRegion::UsingRects() const
{
    return ((wxRegionRefData*)m_refData)->UsingRects();
}

/*
wxRectList& wxRegion::GetRectList()
{
    return ((wxRegionRefData*)m_refData)->GetRectList();
}
*/

wxRect* wxRegion::GetRects()
{
    return ((wxRegionRefData*)m_refData)->GetRects();
}

int wxRegion::GetRectCount() const
{
    return ((wxRegionRefData*)m_refData)->GetRectCount();
}

void wxRegion::SetRects(const wxRectList& rectList)
{
    ((wxRegionRefData*)m_refData)->SetRects(rectList);
}

void wxRegion::SetRects(int count, const wxRect* rects)
{
    ((wxRegionRefData*)m_refData)->SetRects(count, rects);
}

///////////////////////////////////////////////////////////////////////////////
//                                                                             //
//                               wxRegionIterator                                 //
//                                                                             //
///////////////////////////////////////////////////////////////////////////////

/*!
 * Initialize empty iterator
 */
wxRegionIterator::wxRegionIterator() : m_current(0), m_numRects(0), m_rects(NULL)
{
}

wxRegionIterator::~wxRegionIterator()
{
    if (m_rects)
        delete[] m_rects;
}

/*!
 * Initialize iterator for region
 */
wxRegionIterator::wxRegionIterator(const wxRegion& region)
{
    m_rects = NULL;

    Reset(region);
}

/*!
 * Reset iterator for a new /e region.
 */
void wxRegionIterator::Reset(const wxRegion& region)
{
    m_current = 0;
    m_region = region;

    if (m_rects)
        delete[] m_rects;

    m_rects = NULL;

    if (m_region.Empty())
        m_numRects = 0;
    else
    {
        // Create m_rects and fill with rectangles for this region.
        // Since we can't find the rectangles in a region, we cheat
        // by retrieving the rectangles explicitly set in wxPaintDC::wxPaintDC
        // (dcclient.cpp).
        if (m_region.UsingRects())
        {
            wxRect* rects = m_region.GetRects();
            int count = m_region.GetRectCount();
            m_numRects = count;
            m_rects = new wxRect[m_numRects];

            for (size_t i = 0; i < m_numRects; i++)
               m_rects[i] = rects[i];

	    /*
            int i = 0;
            wxRectList::Node* node = rectList.GetFirst();
            while (node) {
                wxRect* rect = node->GetData();
                m_rects[i] = * rect;
                node = node->GetNext();
                i ++;
            }
	    */
        }
        else
        {
            // For now, fudge by getting the whole bounding box.
            m_rects = new wxRect[1];
            m_numRects = 1;
            m_rects[0] = m_region.GetBox();
        }
    }
}

/*!
 * Increment iterator. The rectangle returned is the one after the
 * incrementation.
 */
void wxRegionIterator::operator ++ ()
{
    if (m_current < m_numRects)
        ++m_current;
}

/*!
 * Increment iterator. The rectangle returned is the one before the
 * incrementation.
 */
void wxRegionIterator::operator ++ (int)
{
    if (m_current < m_numRects)
        ++m_current;
}

wxCoord wxRegionIterator::GetX() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].x;
    return 0;
}

wxCoord wxRegionIterator::GetY() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].y;
    return 0;
}

wxCoord wxRegionIterator::GetW() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].width ;
    return 0;
}

wxCoord wxRegionIterator::GetH() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].height;
    return 0;
}
Commit	Line	Data
83df96d6 JS	1	/////////////////////////////////////////////////////////////////////////////
	2	// File: region.cpp
	3	// Purpose: Region class
	4	// Author: Markus Holzem/Julian Smart
	5	// Created: Fri Oct 24 10:46:34 MET 1997
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 1997 Markus Holzem/Julian Smart
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#ifdef __GNUG__
	12	#pragma implementation "region.h"
	13	#endif
	14
	15	#include "wx/region.h"
	16	#include "wx/gdicmn.h"
7266b672	17	#include "wx/window.h"
83df96d6 JS	18
	19	#ifdef __VMS__
	20	#pragma message disable nosimpint
	21	#endif
7266b672 JS	22	#include "wx/x11/private.h"
7266b672 JS	23	#include "X11/Xutil.h"
83df96d6 JS	24	#ifdef __VMS__
	25	#pragma message enable nosimpint
	26	#endif
7266b672	27
83df96d6 JS	28
	29	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	30	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	31
	32	// ----------------------------------------------------------------------------
	33	// list types
	34	// ----------------------------------------------------------------------------
	35
	36	#include "wx/listimpl.cpp"
	37
	38	WX_DEFINE_LIST(wxRectList);
	39
	40	//-----------------------------------------------------------------------------
	41	// wxRegionRefData implementation
	42	//-----------------------------------------------------------------------------
	43
	44	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
	45	public:
	46	wxRegionRefData()
	47	{
	48	m_region = XCreateRegion();
	49	m_usingRects = FALSE;
	50	m_rects = (wxRect*) NULL;
	51	m_rectCount = 0;
	52	}
	53
	54	wxRegionRefData(const wxRegionRefData& data)
	55	{
	56	m_region = XCreateRegion();
	57	m_rects = (wxRect*) NULL;
	58	m_rectCount = 0;
	59	XUnionRegion(m_region, data.m_region, m_region);
	60
	61	SetRects(data.m_rectCount, data.m_rects);
	62	}
	63
	64	~wxRegionRefData()
	65	{
	66	XDestroyRegion(m_region);
	67	DeleteRects();
	68	}
	69
	70	wxRect* GetRects() { return m_rects; };
	71	void SetRects(const wxRectList& rectList);
	72	void SetRects(int count, const wxRect* rects);
	73	bool UsingRects() const { return m_usingRects; }
	74	int GetRectCount() const { return m_rectCount; }
	75
	76	void DeleteRects();
	77
	78	Region m_region;
	79	wxRect* m_rects;
	80	int m_rectCount;
	81	bool m_usingRects; // TRUE if we're using the above.
	82	};
	83
	84	void wxRegionRefData::SetRects(const wxRectList& rectList)
	85	{
	86	DeleteRects();
	87	m_usingRects = (rectList.Number() > 0);
	88	if (m_usingRects)
	89	{
	90	m_rectCount = rectList.Number();
	91	m_rects = new wxRect[m_rectCount];
92	}
93
94	wxRectList::Node* node = rectList.GetFirst();
95	int i = 0;
96	while (node) {
97	wxRect* rect = node->GetData();
98	m_rects[i] = * rect;
99	node = node->GetNext();
100	i ++;
101	}
102	}
103
104	void wxRegionRefData::SetRects(int count, const wxRect* rects)
105	{
106	DeleteRects();
107	m_usingRects = (count > 0);
108	if (m_usingRects)
109	{
110	m_rectCount = count;
111	m_rects = new wxRect[m_rectCount];
112	int i;
113	for (i = 0; i < m_rectCount; i++)
114	m_rects[i] = rects[i];
115	}
116	}
117
118	void wxRegionRefData::DeleteRects()
119	{
120	if (m_rects)
121	{
122	delete[] m_rects;
123	m_rects = (wxRect*) NULL;
124	}
125	m_rectCount = 0;
126	m_usingRects = FALSE;
127	}
128
129	#define M_REGION (((wxRegionRefData*)m_refData)->m_region)
130
131	//-----------------------------------------------------------------------------
132	// wxRegion
133	//-----------------------------------------------------------------------------
134
135	/*!
136	* Create an empty region.
137	*/
138	wxRegion::wxRegion()
139	{
140	}
141
142	wxRegion::wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
143	{
144	m_refData = new wxRegionRefData;
145
146	XRectangle rect;
147	rect.x = x;
148	rect.y = y;
149	rect.width = w;
150	rect.height = h;
151	XUnionRectWithRegion(&rect, M_REGION, M_REGION);
152	}
153
154	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
155	{
156	m_refData = new wxRegionRefData;
157
158	XRectangle rect;
159	rect.x = topLeft.x;
160	rect.y = topLeft.y;
161	rect.width = bottomRight.x - topLeft.x;
162	rect.height = bottomRight.y - topLeft.y;
163	XUnionRectWithRegion(&rect, M_REGION, M_REGION);
164	}
165
166	wxRegion::wxRegion(const wxRect& rect)
167	{
168	m_refData = new wxRegionRefData;
169
170	XRectangle rect1;
171	rect1.x = rect.x;
172	rect1.y = rect.y;
173	rect1.width = rect.width;
174	rect1.height = rect.height;
175	XUnionRectWithRegion(&rect1, M_REGION, M_REGION);
176	}
177
178	/*!
179	* Destroy the region.
180	*/
181	wxRegion::~wxRegion()
182	{
183	// m_refData unrefed in ~wxObject
184	}
185
186	// Get the internal region handle
187	WXRegion wxRegion::GetXRegion() const
188	{
189	wxASSERT( m_refData !=NULL );
190
191	return (WXRegion) ((wxRegionRefData*)m_refData)->m_region;
192	}
193
194	//-----------------------------------------------------------------------------
195	//# Modify region
196	//-----------------------------------------------------------------------------
197
198	//! Clear current region
199	void wxRegion::Clear()
200	{
201	UnRef();
202	}
203
204	//! Combine rectangle (x, y, w, h) with this.
205	bool wxRegion::Combine(wxCoord x, wxCoord y, wxCoord width, wxCoord height, wxRegionOp op)
206	{
207	// Don't change shared data
208	if (!m_refData) {
209	m_refData = new wxRegionRefData();
210	} else if (m_refData->GetRefCount() > 1) {
211	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
212	UnRef();
213	m_refData = new wxRegionRefData(*ref);
214	}
215	// If ref count is 1, that means it's 'ours' anyway so no action.
216
217	Region rectRegion = XCreateRegion();
218
219	XRectangle rect;
220	rect.x = x;
221	rect.y = y;
222	rect.width = width;
223	rect.height = height;
224	XUnionRectWithRegion(&rect, rectRegion, rectRegion);
225
226	switch (op)
227	{
228	case wxRGN_AND:
229	XIntersectRegion(M_REGION, rectRegion, M_REGION);
230	break ;
231	case wxRGN_OR:
232	XUnionRegion(M_REGION, rectRegion, M_REGION);
233	break ;
234	case wxRGN_XOR:
235	// TODO
236	break ;
237	case wxRGN_DIFF:
238	// TODO
239	break ;
240	case wxRGN_COPY: // Don't have to do this one
241	default:
242	// TODO
243	break ;
244	}
245
246	return FALSE;
247	}
248
249	//! Union /e region with this.
250	bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
251	{
252	if (region.Empty())
253	return FALSE;
254
255	// Don't change shared data
256	if (!m_refData) {
257	m_refData = new wxRegionRefData();
258	} else if (m_refData->GetRefCount() > 1) {
259	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
260	UnRef();
261	m_refData = new wxRegionRefData(*ref);
262	}
263
264	switch (op)
265	{
266	case wxRGN_AND:
267	XIntersectRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
268	M_REGION);
269	break ;
270	case wxRGN_OR:
271	XUnionRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
272	M_REGION);
273	break ;
274	case wxRGN_XOR:
275	// TODO
276	break ;
277	case wxRGN_DIFF:
278	// TODO
279	break ;
280	case wxRGN_COPY: // Don't have to do this one
281	default:
282	// TODO
283	break ;
284	}
285
286	return FALSE;
287	}
288
289	bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
290	{
291	return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
292	}
293
294	//-----------------------------------------------------------------------------
295	//# Information on region
296	//-----------------------------------------------------------------------------
297
298	// Outer bounds of region
299	void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
300	{
301	if (m_refData) {
302	XRectangle rect;
303	XClipBox(M_REGION, &rect);
304	x = rect.x;
305	y = rect.y;
306	w = rect.width;
307	h = rect.height;
308	} else {
309	x = y = w = h = 0;
310	}
311	}
312
313	wxRect wxRegion::GetBox() const
314	{
315	wxCoord x, y, w, h;
316	GetBox(x, y, w, h);
317	return wxRect(x, y, w, h);
318	}
319
320	// Is region empty?
321	bool wxRegion::Empty() const
322	{
323	return m_refData ? XEmptyRegion(M_REGION) : TRUE;
324	}
325
326	//-----------------------------------------------------------------------------
327	//# Tests
328	//-----------------------------------------------------------------------------
329
330	// Does the region contain the point (x,y)?
331	wxRegionContain wxRegion::Contains(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y)) const
332	{
333	if (!m_refData)
334	return wxOutRegion;
335
336	// TODO. Return wxInRegion if within region.
337	if (0)
338	return wxInRegion;
339	return wxOutRegion;
340	}
341
342	// Does the region contain the point pt?
343	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
344	{
345	if (!m_refData)
346	return wxOutRegion;
347
348	return XPointInRegion(M_REGION, pt.x, pt.y) ? wxInRegion : wxOutRegion;
349	}
350
351	// Does the region contain the rectangle (x, y, w, h)?
352	wxRegionContain wxRegion::Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const
353	{
354	if (!m_refData)
355	return wxOutRegion;
356
357	switch (XRectInRegion(M_REGION, x, y, w, h)) {
358	case RectangleIn: return wxInRegion;
359	case RectanglePart: return wxPartRegion;
360	}
361	return wxOutRegion;
362	}
363
364	// Does the region contain the rectangle rect
365	wxRegionContain wxRegion::Contains(const wxRect& rect) const
366	{
367	if (!m_refData)
368	return wxOutRegion;
369
370	wxCoord x, y, w, h;
371	x = rect.x;
372	y = rect.y;
373	w = rect.GetWidth();
374	h = rect.GetHeight();
375	return Contains(x, y, w, h);
376	}
377
378	bool wxRegion::UsingRects() const
379	{
380	return ((wxRegionRefData*)m_refData)->UsingRects();
381	}
382
383	/*
384	wxRectList& wxRegion::GetRectList()
385	{
386	return ((wxRegionRefData*)m_refData)->GetRectList();
387	}
388	*/
389
390	wxRect* wxRegion::GetRects()
391	{
392	return ((wxRegionRefData*)m_refData)->GetRects();
393	}
394
395	int wxRegion::GetRectCount() const
396	{
397	return ((wxRegionRefData*)m_refData)->GetRectCount();
398	}
399
400	void wxRegion::SetRects(const wxRectList& rectList)
401	{
402	((wxRegionRefData*)m_refData)->SetRects(rectList);
403	}
404
405	void wxRegion::SetRects(int count, const wxRect* rects)
406	{
407	((wxRegionRefData*)m_refData)->SetRects(count, rects);
408	}
409
410	///////////////////////////////////////////////////////////////////////////////
411	// //
412	// wxRegionIterator //
413	// //
414	///////////////////////////////////////////////////////////////////////////////
415
416	/*!
417	* Initialize empty iterator
418	*/
419	wxRegionIterator::wxRegionIterator() : m_current(0), m_numRects(0), m_rects(NULL)
420	{
421	}
422
423	wxRegionIterator::~wxRegionIterator()
424	{
425	if (m_rects)
426	delete[] m_rects;
427	}
428
429	/*!
430	* Initialize iterator for region
431	*/
432	wxRegionIterator::wxRegionIterator(const wxRegion& region)
433	{
434	m_rects = NULL;
435
436	Reset(region);
437	}
438
439	/*!
440	* Reset iterator for a new /e region.
441	*/
442	void wxRegionIterator::Reset(const wxRegion& region)
443	{
444	m_current = 0;
445	m_region = region;
446
447	if (m_rects)
448	delete[] m_rects;
449
450	m_rects = NULL;
451
452	if (m_region.Empty())
453	m_numRects = 0;
454	else
455	{
456	// Create m_rects and fill with rectangles for this region.
457	// Since we can't find the rectangles in a region, we cheat
458	// by retrieving the rectangles explicitly set in wxPaintDC::wxPaintDC
459	// (dcclient.cpp).
460	if (m_region.UsingRects())
461	{
462	wxRect* rects = m_region.GetRects();
463	int count = m_region.GetRectCount();
464	m_numRects = count;
465	m_rects = new wxRect[m_numRects];
466
467	for (size_t i = 0; i < m_numRects; i++)
468	m_rects[i] = rects[i];
469
470	/*
471	int i = 0;
472	wxRectList::Node* node = rectList.GetFirst();
473	while (node) {
474	wxRect* rect = node->GetData();
475	m_rects[i] = * rect;
476	node = node->GetNext();
477	i ++;
478	}
479	*/
480	}
481	else
482	{
483	// For now, fudge by getting the whole bounding box.
484	m_rects = new wxRect[1];
485	m_numRects = 1;
486	m_rects[0] = m_region.GetBox();
487	}
488	}
489	}
490
491	/*!
492	* Increment iterator. The rectangle returned is the one after the
493	* incrementation.
494	*/
495	void wxRegionIterator::operator ++ ()
496	{
497	if (m_current < m_numRects)
498	++m_current;
499	}
500
501	/*!
502	* Increment iterator. The rectangle returned is the one before the
503	* incrementation.
504	*/
505	void wxRegionIterator::operator ++ (int)
506	{
507	if (m_current < m_numRects)
508	++m_current;
509	}
510
511	wxCoord wxRegionIterator::GetX() const
512	{
513	if (m_current < m_numRects)
514	return m_rects[m_current].x;
515	return 0;
516	}
517
518	wxCoord wxRegionIterator::GetY() const
519	{
520	if (m_current < m_numRects)
521	return m_rects[m_current].y;
522	return 0;
523	}
524
525	wxCoord wxRegionIterator::GetW() const
526	{
527	if (m_current < m_numRects)
528	return m_rects[m_current].width ;
529	return 0;
530	}
531
532	wxCoord wxRegionIterator::GetH() const
533	{
534	if (m_current < m_numRects)
535	return m_rects[m_current].height;
536	return 0;
537	}
538