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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: scrolbar.cpp | |
3 | // Purpose: wxScrollBar | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: 1998-01-01 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Stefan Csomor | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "scrolbar.h" | |
14 | #endif | |
15 | ||
16 | #include "wx/defs.h" | |
17 | ||
18 | #ifndef WX_PRECOMP | |
19 | #include "wx/intl.h" | |
20 | #include "wx/log.h" | |
21 | #endif // WX_PRECOMP | |
22 | ||
23 | #include "wx/scrolbar.h" | |
24 | #include "wx/mac/uma.h" | |
25 | ||
26 | #if !USE_SHARED_LIBRARY | |
27 | IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl) | |
28 | ||
29 | BEGIN_EVENT_TABLE(wxScrollBar, wxControl) | |
30 | END_EVENT_TABLE() | |
31 | ||
32 | #endif | |
33 | ||
34 | extern ControlActionUPP wxMacLiveScrollbarActionUPP ; | |
35 | ||
36 | // Scrollbar | |
37 | bool wxScrollBar::Create(wxWindow *parent, wxWindowID id, | |
38 | const wxPoint& pos, | |
39 | const wxSize& size, long style, | |
40 | const wxValidator& validator, | |
41 | const wxString& name) | |
42 | { | |
43 | m_macIsUserPane = FALSE ; | |
44 | ||
45 | if ( !wxControl::Create(parent, id, pos, size, style, validator, name) ) | |
46 | return FALSE; | |
47 | ||
48 | Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ; | |
49 | ||
50 | m_peer = new wxMacControl() ; | |
51 | verify_noerr ( CreateScrollBarControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , | |
52 | 0 , 0 , 100 , 1 , true /* liveTracking */ , wxMacLiveScrollbarActionUPP , *m_peer ) ); | |
53 | ||
54 | ||
55 | MacPostControlCreate(pos,size) ; | |
56 | ||
57 | return TRUE; | |
58 | } | |
59 | ||
60 | wxScrollBar::~wxScrollBar() | |
61 | { | |
62 | } | |
63 | ||
64 | void wxScrollBar::SetThumbPosition(int viewStart) | |
65 | { | |
66 | ::SetControl32BitValue( *m_peer , viewStart ) ; | |
67 | } | |
68 | ||
69 | int wxScrollBar::GetThumbPosition() const | |
70 | { | |
71 | return ::GetControl32BitValue( *m_peer ) ; | |
72 | } | |
73 | ||
74 | void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize, | |
75 | bool refresh) | |
76 | { | |
77 | m_pageSize = pageSize; | |
78 | m_viewSize = thumbSize; | |
79 | m_objectSize = range; | |
80 | ||
81 | int range1 = wxMax((m_objectSize - m_viewSize), 0) ; | |
82 | ||
83 | SetControl32BitMaximum( *m_peer , range1 ) ; | |
84 | SetControl32BitMinimum( *m_peer , 0 ) ; | |
85 | SetControl32BitValue( *m_peer , position ) ; | |
86 | SetControlViewSize( *m_peer , m_viewSize ) ; | |
87 | ||
88 | if ( refresh ) | |
89 | MacRedrawControl() ; | |
90 | } | |
91 | ||
92 | ||
93 | void wxScrollBar::Command(wxCommandEvent& event) | |
94 | { | |
95 | SetThumbPosition(event.m_commandInt); | |
96 | ProcessCommand(event); | |
97 | } | |
98 | ||
99 | void wxScrollBar::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool mouseStillDown ) | |
100 | { | |
101 | int position = GetControl32BitValue( *m_peer) ; | |
102 | int minPos = GetControl32BitMinimum( *m_peer) ; | |
103 | int maxPos = GetControl32BitMaximum( *m_peer) ; | |
104 | ||
105 | wxEventType scrollEvent = wxEVT_NULL; | |
106 | int nScrollInc = 0; | |
107 | ||
108 | // all events have already been reported during mouse down, except for THUMBRELEASE | |
109 | if ( !mouseStillDown && controlpart !=kControlIndicatorPart ) | |
110 | return ; | |
111 | ||
112 | switch( controlpart ) | |
113 | { | |
114 | case kControlUpButtonPart : | |
115 | nScrollInc = -1; | |
116 | scrollEvent = wxEVT_SCROLL_LINEUP; | |
117 | break ; | |
118 | case kControlDownButtonPart : | |
119 | nScrollInc = 1; | |
120 | scrollEvent = wxEVT_SCROLL_LINEDOWN; | |
121 | break ; | |
122 | case kControlPageUpPart : | |
123 | nScrollInc = -m_pageSize; | |
124 | scrollEvent = wxEVT_SCROLL_PAGEUP; | |
125 | break ; | |
126 | case kControlPageDownPart : | |
127 | nScrollInc = m_pageSize; | |
128 | scrollEvent = wxEVT_SCROLL_PAGEDOWN; | |
129 | break ; | |
130 | case kControlIndicatorPart : | |
131 | nScrollInc = 0 ; | |
132 | if ( mouseStillDown ) | |
133 | scrollEvent = wxEVT_SCROLL_THUMBTRACK; | |
134 | else | |
135 | scrollEvent = wxEVT_SCROLL_THUMBRELEASE; | |
136 | break ; | |
137 | default : | |
138 | wxFAIL_MSG(wxT("illegal scrollbar selector")); | |
139 | break ; | |
140 | } | |
141 | ||
142 | int new_pos = position + nScrollInc; | |
143 | ||
144 | if (new_pos < minPos) | |
145 | new_pos = minPos; | |
146 | if (new_pos > maxPos) | |
147 | new_pos = maxPos; | |
148 | if ( nScrollInc ) | |
149 | SetThumbPosition(new_pos); | |
150 | ||
151 | wxScrollEvent event(scrollEvent, m_windowId); | |
152 | if ( m_windowStyle & wxHORIZONTAL ) | |
153 | { | |
154 | event.SetOrientation( wxHORIZONTAL ) ; | |
155 | } | |
156 | else | |
157 | { | |
158 | event.SetOrientation( wxVERTICAL ) ; | |
159 | } | |
160 | event.SetPosition(new_pos); | |
161 | event.SetEventObject( this ); | |
162 | wxWindow* window = GetParent() ; | |
163 | if (window && window->MacIsWindowScrollbar(this) ) | |
164 | { | |
165 | // this is hardcoded | |
166 | window->MacOnScroll(event); | |
167 | } | |
168 | else | |
169 | GetEventHandler()->ProcessEvent(event); | |
170 | } | |
171 | ||
172 | wxInt32 wxScrollBar::MacControlHit( WXEVENTHANDLERREF handler , WXEVENTREF mevent ) | |
173 | { | |
174 | int position = GetControl32BitValue( *m_peer) ; | |
175 | int minPos = GetControl32BitMinimum( *m_peer) ; | |
176 | int maxPos = GetControl32BitMaximum( *m_peer) ; | |
177 | ||
178 | wxEventType scrollEvent = wxEVT_NULL; | |
179 | int nScrollInc = 0; | |
180 | ||
181 | wxMacCarbonEvent cEvent( (EventRef) mevent ) ; | |
182 | ControlPartCode controlpart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPart,typeControlPartCode) ; | |
183 | ||
184 | // all events have already been reported during mouse down, except for THUMBRELEASE | |
185 | if ( controlpart !=kControlIndicatorPart ) | |
186 | return eventNotHandledErr ; | |
187 | ||
188 | switch( controlpart ) | |
189 | { | |
190 | case kControlIndicatorPart : | |
191 | nScrollInc = 0 ; | |
192 | scrollEvent = wxEVT_SCROLL_THUMBRELEASE; | |
193 | break ; | |
194 | default : | |
195 | wxFAIL_MSG(wxT("illegal scrollbar selector")); | |
196 | break ; | |
197 | } | |
198 | ||
199 | int new_pos = position + nScrollInc; | |
200 | ||
201 | if (new_pos < minPos) | |
202 | new_pos = minPos; | |
203 | if (new_pos > maxPos) | |
204 | new_pos = maxPos; | |
205 | if ( nScrollInc ) | |
206 | SetThumbPosition(new_pos); | |
207 | ||
208 | wxScrollEvent event(scrollEvent, m_windowId); | |
209 | if ( m_windowStyle & wxHORIZONTAL ) | |
210 | { | |
211 | event.SetOrientation( wxHORIZONTAL ) ; | |
212 | } | |
213 | else | |
214 | { | |
215 | event.SetOrientation( wxVERTICAL ) ; | |
216 | } | |
217 | event.SetPosition(new_pos); | |
218 | event.SetEventObject( this ); | |
219 | wxWindow* window = GetParent() ; | |
220 | if (window && window->MacIsWindowScrollbar(this) ) | |
221 | { | |
222 | // this is hardcoded | |
223 | window->MacOnScroll(event); | |
224 | } | |
225 | else | |
226 | GetEventHandler()->ProcessEvent(event); | |
227 | return noErr ; | |
228 | } | |
229 | ||
230 |