/[pcsx2_0.9.7]/branch/r3113_0.9.7_beta/3rdparty/wxWidgets/src/msw/scrolbar.cpp
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Contents of /branch/r3113_0.9.7_beta/3rdparty/wxWidgets/src/msw/scrolbar.cpp

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Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (10 years ago) by william
Original Path: trunk/3rdparty/wxWidgets/src/msw/scrolbar.cpp
File size: 9691 byte(s)
committing r3113 initial commit again...
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/scrolbar.cpp
3 // Purpose: wxScrollBar
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id: scrolbar.cpp 39476 2006-05-30 13:43:18Z ABX $
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
14
15 #ifdef __BORLANDC__
16 #pragma hdrstop
17 #endif
18
19 #if wxUSE_SCROLLBAR
20
21 #include "wx/scrolbar.h"
22
23 #ifndef WX_PRECOMP
24 #include "wx/utils.h"
25 #include "wx/settings.h"
26 #endif
27
28 #include "wx/msw/private.h"
29
30 #if wxUSE_EXTENDED_RTTI
31 WX_DEFINE_FLAGS( wxScrollBarStyle )
32
33 wxBEGIN_FLAGS( wxScrollBarStyle )
34 // new style border flags, we put them first to
35 // use them for streaming out
36 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
37 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
38 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
39 wxFLAGS_MEMBER(wxBORDER_RAISED)
40 wxFLAGS_MEMBER(wxBORDER_STATIC)
41 wxFLAGS_MEMBER(wxBORDER_NONE)
42
43 // old style border flags
44 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
45 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
46 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
47 wxFLAGS_MEMBER(wxRAISED_BORDER)
48 wxFLAGS_MEMBER(wxSTATIC_BORDER)
49 wxFLAGS_MEMBER(wxBORDER)
50
51 // standard window styles
52 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
53 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
54 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
55 wxFLAGS_MEMBER(wxWANTS_CHARS)
56 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
57 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
58 wxFLAGS_MEMBER(wxVSCROLL)
59 wxFLAGS_MEMBER(wxHSCROLL)
60
61 wxFLAGS_MEMBER(wxSB_HORIZONTAL)
62 wxFLAGS_MEMBER(wxSB_VERTICAL)
63
64 wxEND_FLAGS( wxScrollBarStyle )
65
66 IMPLEMENT_DYNAMIC_CLASS_XTI(wxScrollBar, wxControl,"wx/scrolbar.h")
67
68 wxBEGIN_PROPERTIES_TABLE(wxScrollBar)
69 wxEVENT_RANGE_PROPERTY( Scroll , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxScrollEvent )
70
71 wxPROPERTY( ThumbPosition , int , SetThumbPosition, GetThumbPosition, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
72 wxPROPERTY( Range , int , SetRange, GetRange, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
73 wxPROPERTY( ThumbSize , int , SetThumbSize, GetThumbSize, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
74 wxPROPERTY( PageSize , int , SetPageSize, GetPageSize, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
75 wxPROPERTY_FLAGS( WindowStyle , wxScrollBarStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
76 wxEND_PROPERTIES_TABLE()
77
78 wxBEGIN_HANDLERS_TABLE(wxScrollBar)
79 wxEND_HANDLERS_TABLE()
80
81 wxCONSTRUCTOR_5( wxScrollBar , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
82 #else
83 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
84 #endif
85
86 // Scrollbar
87 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
88 const wxPoint& pos,
89 const wxSize& size, long style,
90 const wxValidator& validator,
91 const wxString& name)
92 {
93 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
94 return false;
95
96 if (!MSWCreateControl(wxT("ScrollBar"), wxEmptyString, pos, size))
97 return false;
98
99 SetScrollbar(0, 1, 2, 1, false);
100
101 return true;
102 }
103
104 wxScrollBar::~wxScrollBar(void)
105 {
106 }
107
108 bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
109 WXWORD pos, WXHWND WXUNUSED(control))
110 {
111 // current and max positions
112 int position,
113 maxPos, trackPos = pos;
114
115 wxUnusedVar(trackPos);
116
117 // when we're dragging the scrollbar we can't use pos parameter because it
118 // is limited to 16 bits
119 // JACS: now always using GetScrollInfo, since there's no reason
120 // not to
121 // if ( wParam == SB_THUMBPOSITION || wParam == SB_THUMBTRACK )
122 {
123 SCROLLINFO scrollInfo;
124 wxZeroMemory(scrollInfo);
125 scrollInfo.cbSize = sizeof(SCROLLINFO);
126
127 // also get the range if we call GetScrollInfo() anyhow -- this is less
128 // expensive than call it once here and then call GetScrollRange()
129 // below
130 scrollInfo.fMask = SIF_RANGE | SIF_POS | SIF_TRACKPOS;
131
132 if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
133 {
134 wxLogLastError(_T("GetScrollInfo"));
135 }
136
137 trackPos = scrollInfo.nTrackPos;
138 position = scrollInfo.nPos;
139 maxPos = scrollInfo.nMax;
140 }
141 #if 0
142 else
143 {
144 position = ::GetScrollPos((HWND) control, SB_CTL);
145 int minPos;
146 ::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
147 }
148 #endif
149
150 // A page size greater than one has the effect of reducing the effective
151 // range, therefore the range has already been boosted artificially - so
152 // reduce it again.
153 if ( m_pageSize > 1 )
154 maxPos -= (m_pageSize - 1);
155
156 wxEventType scrollEvent = wxEVT_NULL;
157
158 int nScrollInc;
159 switch ( wParam )
160 {
161 case SB_TOP:
162 nScrollInc = maxPos - position;
163 scrollEvent = wxEVT_SCROLL_TOP;
164 break;
165
166 case SB_BOTTOM:
167 nScrollInc = -position;
168 scrollEvent = wxEVT_SCROLL_BOTTOM;
169 break;
170
171 case SB_LINEUP:
172 nScrollInc = -1;
173 scrollEvent = wxEVT_SCROLL_LINEUP;
174 break;
175
176 case SB_LINEDOWN:
177 nScrollInc = 1;
178 scrollEvent = wxEVT_SCROLL_LINEDOWN;
179 break;
180
181 case SB_PAGEUP:
182 nScrollInc = -GetPageSize();
183 scrollEvent = wxEVT_SCROLL_PAGEUP;
184 break;
185
186 case SB_PAGEDOWN:
187 nScrollInc = GetPageSize();
188 scrollEvent = wxEVT_SCROLL_PAGEDOWN;
189 break;
190
191 case SB_THUMBPOSITION:
192 nScrollInc = trackPos - position;
193 scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
194 break;
195
196 case SB_THUMBTRACK:
197 nScrollInc = trackPos - position;
198 scrollEvent = wxEVT_SCROLL_THUMBTRACK;
199 break;
200
201 case SB_ENDSCROLL:
202 nScrollInc = 0;
203 scrollEvent = wxEVT_SCROLL_CHANGED;
204 break;
205
206 default:
207 nScrollInc = 0;
208 }
209
210 if ( nScrollInc )
211 {
212 position += nScrollInc;
213
214 if ( position < 0 )
215 position = 0;
216 if ( position > maxPos )
217 position = maxPos;
218
219 SetThumbPosition(position);
220 }
221 else if ( scrollEvent != wxEVT_SCROLL_THUMBRELEASE &&
222 scrollEvent != wxEVT_SCROLL_CHANGED )
223 {
224 // don't process the event if there is no displacement,
225 // unless this is a thumb release or end scroll event.
226 return false;
227 }
228
229 wxScrollEvent event(scrollEvent, m_windowId);
230 event.SetOrientation(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
231 event.SetPosition(position);
232 event.SetEventObject( this );
233
234 return GetEventHandler()->ProcessEvent(event);
235 }
236
237 void wxScrollBar::SetThumbPosition(int viewStart)
238 {
239 SCROLLINFO info;
240 info.cbSize = sizeof(SCROLLINFO);
241 info.nPage = 0;
242 info.nMin = 0;
243 info.nPos = viewStart;
244 info.fMask = SIF_POS ;
245
246 ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
247 }
248
249 int wxScrollBar::GetThumbPosition(void) const
250 {
251 SCROLLINFO scrollInfo;
252 wxZeroMemory(scrollInfo);
253 scrollInfo.cbSize = sizeof(SCROLLINFO);
254 scrollInfo.fMask = SIF_POS;
255
256 if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
257 {
258 wxLogLastError(_T("GetScrollInfo"));
259 }
260 return scrollInfo.nPos;
261 // return ::GetScrollPos((HWND)m_hWnd, SB_CTL);
262 }
263
264 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
265 bool refresh)
266 {
267 m_viewSize = pageSize;
268 m_pageSize = thumbSize;
269 m_objectSize = range;
270
271 // The range (number of scroll steps) is the
272 // object length minus the page size.
273 int range1 = wxMax((m_objectSize - m_pageSize), 0) ;
274
275 // Try to adjust the range to cope with page size > 1
276 // (see comment for SetPageLength)
277 if ( m_pageSize > 1 )
278 {
279 range1 += (m_pageSize - 1);
280 }
281
282 SCROLLINFO info;
283 info.cbSize = sizeof(SCROLLINFO);
284 info.nPage = m_pageSize;
285 info.nMin = 0;
286 info.nMax = range1;
287 info.nPos = position;
288
289 info.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
290
291 ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, refresh);
292 }
293
294 void wxScrollBar::Command(wxCommandEvent& event)
295 {
296 SetThumbPosition(event.GetInt());
297 ProcessCommand(event);
298 }
299
300 wxSize wxScrollBar::DoGetBestSize() const
301 {
302 int w = 100;
303 int h = 100;
304
305 if ( IsVertical() )
306 {
307 w = wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
308 }
309 else
310 {
311 h = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
312 }
313
314 wxSize best(w, h);
315 CacheBestSize(best);
316 return best;
317 }
318
319 WXDWORD wxScrollBar::MSWGetStyle(long style, WXDWORD *exstyle) const
320 {
321 // we never have an external border
322 WXDWORD msStyle = wxControl::MSWGetStyle
323 (
324 (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
325 );
326
327 // SBS_HORZ is 0 anyhow, but do mention it explicitly for clarity
328 msStyle |= style & wxSB_HORIZONTAL ? SBS_HORZ : SBS_VERT;
329
330 return msStyle;
331 }
332
333 WXHBRUSH wxScrollBar::MSWControlColor(WXHDC pDC, WXHWND hWnd)
334 {
335 // unless we have an explicitly set bg colour, use default (gradient under
336 // XP) brush instead of GetBackgroundColour() one as the base class would
337 //
338 // note that fg colour isn't used for a scrollbar
339 return UseBgCol() ? wxControl::MSWControlColor(pDC, hWnd) : NULL;
340 }
341
342 #endif // wxUSE_SCROLLBAR

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