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Fixed small bug in tab code WRT to having only
[wxWidgets.git] / src / gtk1 / region.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: gtk/region.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10#ifdef __GNUG__
11#pragma implementation "region.h"
12#endif
13
14#include "wx/region.h"
15
16#include <gdk/gdk.h>
17#include <gtk/gtk.h>
18
19
20//-----------------------------------------------------------------------------
21// wxRegion
22//-----------------------------------------------------------------------------
23
24class wxRegionRefData: public wxObjectRefData
25{
26public:
27 wxRegionRefData();
28 ~wxRegionRefData();
29
30 GdkRegion *m_region;
31 wxList m_rects;
32};
33
34wxRegionRefData::wxRegionRefData()
35{
36 m_region = (GdkRegion *) NULL;
37}
38
39wxRegionRefData::~wxRegionRefData()
40{
41 if (m_region) gdk_region_destroy( m_region );
42
43 wxNode *node = m_rects.First();
44 while (node)
45 {
46 wxRect *r = (wxRect*)node->Data();
47 delete r;
48 node = node->Next();
49 }
50}
51
52//-----------------------------------------------------------------------------
53
54#define M_REGIONDATA ((wxRegionRefData *)m_refData)
55
56IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
57
58wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
59{
60 m_refData = new wxRegionRefData();
61 GdkRegion *reg = gdk_region_new();
62 GdkRectangle rect;
63 rect.x = x;
64 rect.y = y;
65 rect.width = w;
66 rect.height = h;
67 M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
68 gdk_region_destroy( reg );
69 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
70}
71
72wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
73{
74 m_refData = new wxRegionRefData();
75 GdkRegion *reg = gdk_region_new();
76 GdkRectangle rect;
77 rect.x = topLeft.x;
78 rect.y = topLeft.y;
79 rect.width = bottomRight.x - rect.x;
80 rect.height = bottomRight.y - rect.y;
81 M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
82 gdk_region_destroy( reg );
83 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
84}
85
86wxRegion::wxRegion( const wxRect& rect )
87{
88 m_refData = new wxRegionRefData();
89 GdkRegion *reg = gdk_region_new();
90 GdkRectangle g_rect;
91 g_rect.x = rect.x;
92 g_rect.y = rect.y;
93 g_rect.width = rect.width;
94 g_rect.height = rect.height;
95 M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
96 gdk_region_destroy( reg );
97
98 wxNode *node = M_REGIONDATA->m_rects.First();
99 while (node)
100 {
101 wxRect *r = (wxRect*)node->Data();
102 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
103 node = node->Next();
104 }
105}
106
107wxRegion::wxRegion()
108{
109 m_refData = new wxRegionRefData();
110 M_REGIONDATA->m_region = gdk_region_new();
111}
112
113wxRegion::~wxRegion()
114{
115}
116
117bool wxRegion::operator == ( const wxRegion& region )
118{
119 return m_refData == region.m_refData;
120}
121
122bool wxRegion::operator != ( const wxRegion& region )
123{
124 return m_refData != region.m_refData;
125}
126
127void wxRegion::Clear()
128{
129 UnRef();
130 m_refData = new wxRegionRefData();
131 M_REGIONDATA->m_region = gdk_region_new();
132}
133
134bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
135{
136 GdkRectangle rect;
137 rect.x = x;
138 rect.y = y;
139 rect.width = width;
140 rect.height = height;
141 GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
142 gdk_region_destroy( M_REGIONDATA->m_region );
143 M_REGIONDATA->m_region = reg;
144 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
145 return TRUE;
146}
147
148bool wxRegion::Union( const wxRect& rect )
149{
150 GdkRectangle g_rect;
151 g_rect.x = rect.x;
152 g_rect.y = rect.y;
153 g_rect.width = rect.width;
154 g_rect.height = rect.height;
155 GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &g_rect );
156 gdk_region_destroy( M_REGIONDATA->m_region );
157 M_REGIONDATA->m_region = reg;
158 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
159 return TRUE;
160}
161
162bool wxRegion::Union( const wxRegion& region )
163{
164 GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
165 gdk_region_destroy( M_REGIONDATA->m_region );
166 M_REGIONDATA->m_region = reg;
167
168 wxNode *node = region.GetRectList()->First();
169 while (node)
170 {
171 wxRect *r = (wxRect*)node->Data();
172 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
173 node = node->Next();
174 }
175
176 return TRUE;
177}
178
179bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
180{
181 wxRegion reg( x, y, width, height );
182 Intersect( reg );
183 return TRUE;
184}
185
186bool wxRegion::Intersect( const wxRect& rect )
187{
188 wxRegion reg( rect );
189 Intersect( reg );
190 return TRUE;
191}
192
193bool wxRegion::Intersect( const wxRegion& region )
194{
195 GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() );
196 gdk_region_destroy( M_REGIONDATA->m_region );
197 M_REGIONDATA->m_region = reg;
198 return TRUE;
199}
200
201bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
202{
203 wxRegion reg( x, y, width, height );
204 Subtract( reg );
205 return TRUE;
206}
207
208bool wxRegion::Subtract( const wxRect& rect )
209{
210 wxRegion reg( rect );
211 Subtract( reg );
212 return TRUE;
213}
214
215bool wxRegion::Subtract( const wxRegion& region )
216{
217 GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
218 gdk_region_destroy( M_REGIONDATA->m_region );
219 M_REGIONDATA->m_region = reg;
220 return TRUE;
221}
222
223bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
224{
225 wxRegion reg( x, y, width, height );
226 Xor( reg );
227 return TRUE;
228}
229
230bool wxRegion::Xor( const wxRect& rect )
231{
232 wxRegion reg( rect );
233 Xor( reg );
234 return TRUE;
235}
236
237bool wxRegion::Xor( const wxRegion& region )
238{
239 GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
240 gdk_region_destroy( M_REGIONDATA->m_region );
241 M_REGIONDATA->m_region = reg;
242
243 wxNode *node = region.GetRectList()->First();
244 while (node)
245 {
246 wxRect *r = (wxRect*)node->Data();
247 M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
248 node = node->Next();
249 }
250
251 return TRUE;
252}
253
254void wxRegion::GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const
255{
256 x = 0;
257 y = 0;
258 w = -1;
259 h = -1;
260 GdkRectangle rect;
261 gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
262 x = rect.x;
263 y = rect.y;
264 w = rect.width;
265 h = rect.height;
266}
267
268wxRect wxRegion::GetBox() const
269{
270 wxCoord x = 0;
271 wxCoord y = 0;
272 wxCoord w = -1;
273 wxCoord h = -1;
274 GetBox( x, y, w, h );
275 return wxRect( x, y, w, h );
276}
277
278bool wxRegion::Empty() const
279{
280 return gdk_region_empty( M_REGIONDATA->m_region );
281}
282
283wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
284{
285 if (gdk_region_point_in( M_REGIONDATA->m_region, x, y ))
286 return wxInRegion;
287 else
288 return wxOutRegion;
289}
290
291wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
292{
293 GdkRectangle rect;
294 rect.x = x;
295 rect.y = y;
296 rect.width = w;
297 rect.height = h;
298 GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect );
299 switch (res)
300 {
301 case GDK_OVERLAP_RECTANGLE_IN: return wxInRegion;
302 case GDK_OVERLAP_RECTANGLE_OUT: return wxOutRegion;
303 case GDK_OVERLAP_RECTANGLE_PART: return wxPartRegion;
304 }
305 return wxOutRegion;
306}
307
308wxRegionContain wxRegion::Contains(const wxPoint& pt) const
309{
310 return Contains( pt.x, pt.y );
311}
312
313wxRegionContain wxRegion::Contains(const wxRect& rect) const
314{
315 return Contains( rect.x, rect.y, rect.width, rect.height );
316}
317
318GdkRegion *wxRegion::GetRegion() const
319{
320 return M_REGIONDATA->m_region;
321}
322
323wxList *wxRegion::GetRectList() const
324{
325 return &(M_REGIONDATA->m_rects);
326}
327
328//-----------------------------------------------------------------------------
329// wxRegion
330//-----------------------------------------------------------------------------
331
332IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
333
334wxRegionIterator::wxRegionIterator()
335{
336 Reset();
337}
338
339wxRegionIterator::wxRegionIterator( const wxRegion& region )
340{
341 Reset(region);
342}
343
344void wxRegionIterator::Reset( const wxRegion& region )
345{
346 m_region = region;
347 Reset();
348}
349
350wxRegionIterator::operator bool () const
351{
352 return m_current < (size_t)m_region.GetRectList()->Number();
353}
354
355bool wxRegionIterator::HaveRects() const
356{
357 return m_current < (size_t)m_region.GetRectList()->Number();
358}
359
360void wxRegionIterator::operator ++ ()
361{
362 if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
363}
364
365void wxRegionIterator::operator ++ (int)
366{
367 if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
368}
369
370wxCoord wxRegionIterator::GetX() const
371{
372 wxNode *node = m_region.GetRectList()->Nth( m_current );
373 if (!node) return 0;
374 wxRect *r = (wxRect*)node->Data();
375 return r->x;
376}
377
378wxCoord wxRegionIterator::GetY() const
379{
380 wxNode *node = m_region.GetRectList()->Nth( m_current );
381 if (!node) return 0;
382 wxRect *r = (wxRect*)node->Data();
383 return r->y;
384}
385
386wxCoord wxRegionIterator::GetW() const
387{
388 wxNode *node = m_region.GetRectList()->Nth( m_current );
389 if (!node) return 0;
390 wxRect *r = (wxRect*)node->Data();
391 return r->width;
392}
393
394wxCoord wxRegionIterator::GetH() const
395{
396 wxNode *node = m_region.GetRectList()->Nth( m_current );
397 if (!node) return 0;
398 wxRect *r = (wxRect*)node->Data();
399 return r->height;
400}
401
402