1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/motif/slider.cpp
3 // Purpose: wxSlider
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // Copyright: (c) Julian Smart
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #if wxUSE_SLIDER
15
16 #include "wx/slider.h"
17
18 #ifndef WX_PRECOMP
19 #include "wx/utils.h"
20 #endif
21
22 #ifdef __VMS__
23 #pragma message disable nosimpint
24 #endif
25 #include <Xm/Xm.h>
26 #include <Xm/Label.h>
27 #include <Xm/LabelG.h>
28 #include <Xm/RowColumn.h>
29 #include <Xm/Scale.h>
30 #ifdef __VMS__
31 #pragma message enable nosimpint
32 #endif
33
34 #include "wx/motif/private.h"
35
36 static void wxSliderCallback (Widget widget, XtPointer clientData, XmScaleCallbackStruct * cbs);
37
wxBEGIN_EVENT_TABLE(wxSlider,wxControl)38 wxBEGIN_EVENT_TABLE(wxSlider, wxControl)
39 wxEND_EVENT_TABLE()
40
41
42
43 // Slider
44 wxSlider::wxSlider()
45 {
46 m_pageSize = 1;
47 m_lineSize = 1;
48 m_rangeMax = 0;
49 m_rangeMin = 0;
50 }
51
Create(wxWindow * parent,wxWindowID id,int value,int minValue,int maxValue,const wxPoint & pos,const wxSize & size,long style,const wxValidator & validator,const wxString & name)52 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
53 int value, int minValue, int maxValue,
54 const wxPoint& pos,
55 const wxSize& size, long style,
56 const wxValidator& validator,
57 const wxString& name)
58 {
59 if ( !((style & wxSL_HORIZONTAL) || (style & wxSL_VERTICAL)) )
60 style |= wxSL_HORIZONTAL;
61
62 if( !CreateControl( parent, id, pos, size, style, validator, name ) )
63 return false;
64 PreCreation();
65
66 m_lineSize = 1;
67 m_windowStyle = style;
68
69 m_rangeMax = maxValue;
70 m_rangeMin = minValue;
71
72 // Not used in Motif, I think
73 m_pageSize = (int)((maxValue-minValue)/10);
74
75 Widget parentWidget = (Widget) parent->GetClientWidget();
76
77 Widget sliderWidget = XtVaCreateManagedWidget ("sliderWidget",
78 xmScaleWidgetClass, parentWidget,
79 XmNorientation,
80 (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmVERTICAL : XmHORIZONTAL),
81 XmNprocessingDirection,
82 (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmMAX_ON_TOP : XmMAX_ON_RIGHT),
83 XmNmaximum, maxValue,
84 XmNminimum, minValue,
85 XmNvalue, value,
86 XmNshowValue, True,
87 NULL);
88
89 m_mainWidget = (WXWidget) sliderWidget;
90
91 XtAddCallback (sliderWidget, XmNvalueChangedCallback, (XtCallbackProc) wxSliderCallback, (XtPointer) this);
92 XtAddCallback (sliderWidget, XmNdragCallback, (XtCallbackProc) wxSliderCallback, (XtPointer) this);
93
94 PostCreation();
95 AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
96
97 return true;
98 }
99
~wxSlider()100 wxSlider::~wxSlider()
101 {
102 }
103
GetValue() const104 int wxSlider::GetValue() const
105 {
106 int val;
107 XtVaGetValues ((Widget) m_mainWidget, XmNvalue, &val, NULL);
108 return val;
109 }
110
SetValue(int value)111 void wxSlider::SetValue(int value)
112 {
113 XtVaSetValues ((Widget) m_mainWidget, XmNvalue, value, NULL);
114 }
115
DoSetSize(int x,int y,int width,int height,int sizeFlags)116 void wxSlider::DoSetSize(int x, int y, int width, int height, int sizeFlags)
117 {
118 Widget widget = (Widget) m_mainWidget;
119
120 bool managed = XtIsManaged(widget);
121
122 if (managed)
123 XtUnmanageChild (widget);
124
125 if (((m_windowStyle & wxHORIZONTAL) == wxHORIZONTAL) && (width > -1))
126 {
127 XtVaSetValues (widget, XmNscaleWidth, wxMax (width, 10), NULL);
128 }
129
130 if (((m_windowStyle & wxVERTICAL) == wxVERTICAL) && (height > -1))
131 {
132 XtVaSetValues (widget, XmNscaleHeight, wxMax (height, 10), NULL);
133 }
134
135 int xx = x; int yy = y;
136 AdjustForParentClientOrigin(xx, yy, sizeFlags);
137
138 if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
139 XtVaSetValues (widget, XmNx, xx, NULL);
140 if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
141 XtVaSetValues (widget, XmNy, yy, NULL);
142
143 if (managed)
144 XtManageChild (widget);
145 }
146
SetRange(int minValue,int maxValue)147 void wxSlider::SetRange(int minValue, int maxValue)
148 {
149 m_rangeMin = minValue;
150 m_rangeMax = maxValue;
151
152 XtVaSetValues ((Widget) m_mainWidget, XmNminimum, minValue, XmNmaximum, maxValue, NULL);
153 }
154
155 // For trackbars only
SetPageSize(int pageSize)156 void wxSlider::SetPageSize(int pageSize)
157 {
158 // Not implemented in Motif
159 m_pageSize = pageSize;
160 }
161
GetPageSize() const162 int wxSlider::GetPageSize() const
163 {
164 return m_pageSize;
165 }
166
SetLineSize(int lineSize)167 void wxSlider::SetLineSize(int lineSize)
168 {
169 // Not implemented in Motif
170 m_lineSize = lineSize;
171 }
172
GetLineSize() const173 int wxSlider::GetLineSize() const
174 {
175 // Not implemented in Motif
176 return m_lineSize;
177 }
178
SetThumbLength(int WXUNUSED (len))179 void wxSlider::SetThumbLength(int WXUNUSED(len))
180 {
181 // Not implemented in Motif (?)
182 }
183
GetThumbLength() const184 int wxSlider::GetThumbLength() const
185 {
186 // Not implemented in Motif (?)
187 return 0;
188 }
189
Command(wxCommandEvent & event)190 void wxSlider::Command (wxCommandEvent & event)
191 {
192 SetValue (event.GetInt());
193 ProcessCommand (event);
194 }
195
wxSliderCallback(Widget widget,XtPointer clientData,XmScaleCallbackStruct * cbs)196 void wxSliderCallback (Widget widget, XtPointer clientData,
197 XmScaleCallbackStruct * cbs)
198 {
199 wxSlider *slider = (wxSlider *) clientData;
200 wxEventType scrollEvent;
201
202 switch (cbs->reason)
203 {
204 case XmCR_VALUE_CHANGED:
205 scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
206 break;
207
208 case XmCR_DRAG:
209 scrollEvent = wxEVT_SCROLL_THUMBTRACK;
210 break;
211
212 default:
213 return;
214 }
215
216 wxScrollEvent event(scrollEvent, slider->GetId());
217 int commandInt = event.GetInt();
218 XtVaGetValues (widget, XmNvalue, &commandInt, NULL);
219 event.SetInt(commandInt);
220 event.SetEventObject(slider);
221 slider->HandleWindowEvent(event);
222
223 // Also send a wxCommandEvent for compatibility.
224 wxCommandEvent event2(wxEVT_SLIDER, slider->GetId());
225 event2.SetEventObject(slider);
226 event2.SetInt( event.GetInt() );
227 slider->HandleWindowEvent(event2);
228 }
229
230 #endif // wxUSE_SLIDER
231