| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: slider.cpp |
| 3 | // Purpose: wxSlider |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 17/09/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 13 | #pragma implementation "slider.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #include "wx/defs.h" |
| 20 | |
| 21 | #if wxUSE_SLIDER |
| 22 | |
| 23 | #include "wx/slider.h" |
| 24 | #include "wx/utils.h" |
| 25 | |
| 26 | #ifdef __VMS__ |
| 27 | #pragma message disable nosimpint |
| 28 | #endif |
| 29 | #include <Xm/Xm.h> |
| 30 | #include <Xm/Label.h> |
| 31 | #include <Xm/LabelG.h> |
| 32 | #include <Xm/RowColumn.h> |
| 33 | #include <Xm/Scale.h> |
| 34 | #ifdef __VMS__ |
| 35 | #pragma message enable nosimpint |
| 36 | #endif |
| 37 | |
| 38 | #include "wx/motif/private.h" |
| 39 | |
| 40 | void wxSliderCallback (Widget widget, XtPointer clientData, XmScaleCallbackStruct * cbs); |
| 41 | |
| 42 | IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl) |
| 43 | |
| 44 | BEGIN_EVENT_TABLE(wxSlider, wxControl) |
| 45 | END_EVENT_TABLE() |
| 46 | |
| 47 | |
| 48 | |
| 49 | // Slider |
| 50 | wxSlider::wxSlider() |
| 51 | { |
| 52 | m_pageSize = 1; |
| 53 | m_lineSize = 1; |
| 54 | m_rangeMax = 0; |
| 55 | m_rangeMin = 0; |
| 56 | } |
| 57 | |
| 58 | bool wxSlider::Create(wxWindow *parent, wxWindowID id, |
| 59 | int value, int minValue, int maxValue, |
| 60 | const wxPoint& pos, |
| 61 | const wxSize& size, long style, |
| 62 | const wxValidator& validator, |
| 63 | const wxString& name) |
| 64 | { |
| 65 | if ( !((style & wxSL_HORIZONTAL) || (style & wxSL_VERTICAL)) ) |
| 66 | style |= wxSL_HORIZONTAL; |
| 67 | |
| 68 | if( !CreateControl( parent, id, pos, size, style, validator, name ) ) |
| 69 | return false; |
| 70 | |
| 71 | m_lineSize = 1; |
| 72 | m_windowStyle = style; |
| 73 | |
| 74 | m_rangeMax = maxValue; |
| 75 | m_rangeMin = minValue; |
| 76 | |
| 77 | // Not used in Motif, I think |
| 78 | m_pageSize = (int)((maxValue-minValue)/10); |
| 79 | |
| 80 | Widget parentWidget = (Widget) parent->GetClientWidget(); |
| 81 | |
| 82 | Widget sliderWidget = XtVaCreateManagedWidget ("sliderWidget", |
| 83 | xmScaleWidgetClass, parentWidget, |
| 84 | XmNorientation, |
| 85 | (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmVERTICAL : XmHORIZONTAL), |
| 86 | XmNprocessingDirection, |
| 87 | (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmMAX_ON_TOP : XmMAX_ON_RIGHT), |
| 88 | XmNmaximum, maxValue, |
| 89 | XmNminimum, minValue, |
| 90 | XmNvalue, value, |
| 91 | XmNshowValue, True, |
| 92 | NULL); |
| 93 | |
| 94 | m_mainWidget = (WXWidget) sliderWidget; |
| 95 | |
| 96 | #ifdef __VMS__ |
| 97 | #pragma message disable codcauunr |
| 98 | // VMS gives here the compiler warning : |
| 99 | // statement either is unreachable or causes unreachable code |
| 100 | #endif |
| 101 | if(style & wxSL_NOTIFY_DRAG) |
| 102 | XtAddCallback (sliderWidget, XmNdragCallback, |
| 103 | (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 104 | else |
| 105 | XtAddCallback (sliderWidget, XmNvalueChangedCallback, |
| 106 | (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 107 | #ifdef __VMS__ |
| 108 | #pragma message enable codcauunr |
| 109 | #endif |
| 110 | |
| 111 | XtAddCallback (sliderWidget, XmNdragCallback, (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 112 | |
| 113 | ChangeFont(false); |
| 114 | AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y); |
| 115 | |
| 116 | ChangeBackgroundColour(); |
| 117 | |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | wxSlider::~wxSlider() |
| 122 | { |
| 123 | } |
| 124 | |
| 125 | int wxSlider::GetValue() const |
| 126 | { |
| 127 | int val; |
| 128 | XtVaGetValues ((Widget) m_mainWidget, XmNvalue, &val, NULL); |
| 129 | return val; |
| 130 | } |
| 131 | |
| 132 | void wxSlider::SetValue(int value) |
| 133 | { |
| 134 | XtVaSetValues ((Widget) m_mainWidget, XmNvalue, value, NULL); |
| 135 | } |
| 136 | |
| 137 | void wxSlider::DoSetSize(int x, int y, int width, int height, int sizeFlags) |
| 138 | { |
| 139 | Widget widget = (Widget) m_mainWidget; |
| 140 | |
| 141 | bool managed = XtIsManaged(widget); |
| 142 | |
| 143 | if (managed) |
| 144 | XtUnmanageChild (widget); |
| 145 | |
| 146 | if (((m_windowStyle & wxHORIZONTAL) == wxHORIZONTAL) && (width > -1)) |
| 147 | { |
| 148 | XtVaSetValues (widget, XmNscaleWidth, wxMax (width, 10), NULL); |
| 149 | } |
| 150 | |
| 151 | if (((m_windowStyle & wxVERTICAL) == wxVERTICAL) && (height > -1)) |
| 152 | { |
| 153 | XtVaSetValues (widget, XmNscaleHeight, wxMax (height, 10), NULL); |
| 154 | } |
| 155 | |
| 156 | int xx = x; int yy = y; |
| 157 | AdjustForParentClientOrigin(xx, yy, sizeFlags); |
| 158 | |
| 159 | if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 160 | XtVaSetValues (widget, XmNx, xx, NULL); |
| 161 | if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 162 | XtVaSetValues (widget, XmNy, yy, NULL); |
| 163 | |
| 164 | if (managed) |
| 165 | XtManageChild (widget); |
| 166 | } |
| 167 | |
| 168 | void wxSlider::SetRange(int minValue, int maxValue) |
| 169 | { |
| 170 | m_rangeMin = minValue; |
| 171 | m_rangeMax = maxValue; |
| 172 | |
| 173 | XtVaSetValues ((Widget) m_mainWidget, XmNminimum, minValue, XmNmaximum, maxValue, NULL); |
| 174 | } |
| 175 | |
| 176 | // For trackbars only |
| 177 | void wxSlider::SetPageSize(int pageSize) |
| 178 | { |
| 179 | // Not implemented in Motif |
| 180 | m_pageSize = pageSize; |
| 181 | } |
| 182 | |
| 183 | int wxSlider::GetPageSize() const |
| 184 | { |
| 185 | return m_pageSize; |
| 186 | } |
| 187 | |
| 188 | void wxSlider::SetLineSize(int lineSize) |
| 189 | { |
| 190 | // Not implemented in Motif |
| 191 | m_lineSize = lineSize; |
| 192 | } |
| 193 | |
| 194 | int wxSlider::GetLineSize() const |
| 195 | { |
| 196 | // Not implemented in Motif |
| 197 | return m_lineSize; |
| 198 | } |
| 199 | |
| 200 | void wxSlider::SetThumbLength(int WXUNUSED(len)) |
| 201 | { |
| 202 | // Not implemented in Motif (?) |
| 203 | } |
| 204 | |
| 205 | int wxSlider::GetThumbLength() const |
| 206 | { |
| 207 | // Not implemented in Motif (?) |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | void wxSlider::Command (wxCommandEvent & event) |
| 212 | { |
| 213 | SetValue (event.GetInt()); |
| 214 | ProcessCommand (event); |
| 215 | } |
| 216 | |
| 217 | void wxSliderCallback (Widget widget, XtPointer clientData, |
| 218 | XmScaleCallbackStruct * cbs) |
| 219 | { |
| 220 | wxSlider *slider = (wxSlider *) clientData; |
| 221 | wxEventType scrollEvent; |
| 222 | |
| 223 | switch (cbs->reason) |
| 224 | { |
| 225 | case XmCR_VALUE_CHANGED: |
| 226 | scrollEvent = wxEVT_SCROLL_THUMBRELEASE; |
| 227 | break; |
| 228 | |
| 229 | case XmCR_DRAG: |
| 230 | scrollEvent = wxEVT_SCROLL_THUMBTRACK; |
| 231 | break; |
| 232 | |
| 233 | default: |
| 234 | return; |
| 235 | } |
| 236 | |
| 237 | wxScrollEvent event(scrollEvent, slider->GetId()); |
| 238 | int commandInt = event.GetInt(); |
| 239 | XtVaGetValues (widget, XmNvalue, &commandInt, NULL); |
| 240 | event.SetInt(commandInt); |
| 241 | event.SetEventObject(slider); |
| 242 | slider->GetEventHandler()->ProcessEvent(event); |
| 243 | |
| 244 | // Also send a wxCommandEvent for compatibility. |
| 245 | wxCommandEvent event2(wxEVT_COMMAND_SLIDER_UPDATED, slider->GetId()); |
| 246 | event2.SetEventObject(slider); |
| 247 | event2.SetInt( event.GetInt() ); |
| 248 | slider->GetEventHandler()->ProcessEvent(event2); |
| 249 | } |
| 250 | |
| 251 | #endif // wxUSE_SLIDER |