| 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 | #ifdef __GNUG__ |
| 13 | #pragma implementation "slider.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/slider.h" |
| 17 | #include "wx/utils.h" |
| 18 | |
| 19 | #ifdef __VMS__ |
| 20 | #pragma message disable nosimpint |
| 21 | #endif |
| 22 | #include <Xm/Xm.h> |
| 23 | #include <Xm/Label.h> |
| 24 | #include <Xm/LabelG.h> |
| 25 | #include <Xm/RowColumn.h> |
| 26 | #include <Xm/Scale.h> |
| 27 | #ifdef __VMS__ |
| 28 | #pragma message enable nosimpint |
| 29 | #endif |
| 30 | |
| 31 | #include "wx/motif/private.h" |
| 32 | |
| 33 | void wxSliderCallback (Widget widget, XtPointer clientData, XmScaleCallbackStruct * cbs); |
| 34 | |
| 35 | IMPLEMENT_DYNAMIC_CLASS(wxSlider, wxControl) |
| 36 | |
| 37 | BEGIN_EVENT_TABLE(wxSlider, wxControl) |
| 38 | END_EVENT_TABLE() |
| 39 | |
| 40 | |
| 41 | |
| 42 | // Slider |
| 43 | wxSlider::wxSlider() |
| 44 | { |
| 45 | m_pageSize = 1; |
| 46 | m_lineSize = 1; |
| 47 | m_rangeMax = 0; |
| 48 | m_rangeMin = 0; |
| 49 | m_tickFreq = 0; |
| 50 | } |
| 51 | |
| 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 | SetName(name); |
| 63 | SetValidator(validator); |
| 64 | m_backgroundColour = parent->GetBackgroundColour(); |
| 65 | m_foregroundColour = parent->GetForegroundColour(); |
| 66 | |
| 67 | if (parent) parent->AddChild(this); |
| 68 | |
| 69 | m_lineSize = 1; |
| 70 | m_windowStyle = style; |
| 71 | m_tickFreq = 0; |
| 72 | |
| 73 | if ( id == -1 ) |
| 74 | m_windowId = (int)NewControlId(); |
| 75 | else |
| 76 | m_windowId = id; |
| 77 | |
| 78 | m_rangeMax = maxValue; |
| 79 | m_rangeMin = minValue; |
| 80 | |
| 81 | // Not used in Motif, I think |
| 82 | m_pageSize = (int)((maxValue-minValue)/10); |
| 83 | |
| 84 | Widget parentWidget = (Widget) parent->GetClientWidget(); |
| 85 | |
| 86 | Widget sliderWidget = XtVaCreateManagedWidget ("sliderWidget", |
| 87 | xmScaleWidgetClass, parentWidget, |
| 88 | XmNorientation, |
| 89 | (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmVERTICAL : XmHORIZONTAL), |
| 90 | XmNprocessingDirection, |
| 91 | (((m_windowStyle & wxSL_VERTICAL) == wxSL_VERTICAL) ? XmMAX_ON_TOP : XmMAX_ON_RIGHT), |
| 92 | XmNmaximum, maxValue, |
| 93 | XmNminimum, minValue, |
| 94 | XmNvalue, value, |
| 95 | XmNshowValue, True, |
| 96 | NULL); |
| 97 | |
| 98 | m_mainWidget = (WXWidget) sliderWidget; |
| 99 | |
| 100 | #ifdef __VMS__ |
| 101 | #pragma message disable codcauunr |
| 102 | // VMS gives here the compiler warning : |
| 103 | // statement either is unreachable or causes unreachable code |
| 104 | #endif |
| 105 | if(style & wxSL_NOTIFY_DRAG) |
| 106 | XtAddCallback (sliderWidget, XmNdragCallback, |
| 107 | (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 108 | else |
| 109 | XtAddCallback (sliderWidget, XmNvalueChangedCallback, |
| 110 | (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 111 | #ifdef __VMS__ |
| 112 | #pragma message enable codcauunr |
| 113 | #endif |
| 114 | |
| 115 | XtAddCallback (sliderWidget, XmNdragCallback, (XtCallbackProc) wxSliderCallback, (XtPointer) this); |
| 116 | |
| 117 | m_font = parent->GetFont(); |
| 118 | |
| 119 | ChangeFont(FALSE); |
| 120 | SetCanAddEventHandler(TRUE); |
| 121 | AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y); |
| 122 | |
| 123 | ChangeBackgroundColour(); |
| 124 | |
| 125 | return TRUE; |
| 126 | } |
| 127 | |
| 128 | wxSlider::~wxSlider() |
| 129 | { |
| 130 | } |
| 131 | |
| 132 | int wxSlider::GetValue() const |
| 133 | { |
| 134 | int val; |
| 135 | XtVaGetValues ((Widget) m_mainWidget, XmNvalue, &val, NULL); |
| 136 | return val; |
| 137 | } |
| 138 | |
| 139 | void wxSlider::SetValue(int value) |
| 140 | { |
| 141 | XtVaSetValues ((Widget) m_mainWidget, XmNvalue, value, NULL); |
| 142 | } |
| 143 | |
| 144 | void wxSlider::GetSize(int *width, int *height) const |
| 145 | { |
| 146 | wxControl::GetSize(width, height); |
| 147 | } |
| 148 | |
| 149 | void wxSlider::DoSetSize(int x, int y, int width, int height, int sizeFlags) |
| 150 | { |
| 151 | Widget widget = (Widget) m_mainWidget; |
| 152 | |
| 153 | bool managed = XtIsManaged(widget); |
| 154 | |
| 155 | if (managed) |
| 156 | XtUnmanageChild (widget); |
| 157 | |
| 158 | if (((m_windowStyle & wxHORIZONTAL) == wxHORIZONTAL) && (width > -1)) |
| 159 | { |
| 160 | XtVaSetValues (widget, XmNscaleWidth, wxMax (width, 10), NULL); |
| 161 | } |
| 162 | |
| 163 | if (((m_windowStyle & wxVERTICAL) == wxVERTICAL) && (height > -1)) |
| 164 | { |
| 165 | XtVaSetValues (widget, XmNscaleHeight, wxMax (height, 10), NULL); |
| 166 | } |
| 167 | |
| 168 | int xx = x; int yy = y; |
| 169 | AdjustForParentClientOrigin(xx, yy, sizeFlags); |
| 170 | |
| 171 | if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 172 | XtVaSetValues (widget, XmNx, xx, NULL); |
| 173 | if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) |
| 174 | XtVaSetValues (widget, XmNy, yy, NULL); |
| 175 | |
| 176 | if (managed) |
| 177 | XtManageChild (widget); |
| 178 | } |
| 179 | |
| 180 | void wxSlider::SetRange(int minValue, int maxValue) |
| 181 | { |
| 182 | m_rangeMin = minValue; |
| 183 | m_rangeMax = maxValue; |
| 184 | |
| 185 | XtVaSetValues ((Widget) m_mainWidget, XmNminimum, minValue, XmNmaximum, maxValue, NULL); |
| 186 | } |
| 187 | |
| 188 | // For trackbars only |
| 189 | void wxSlider::SetTickFreq(int n, int WXUNUSED(pos)) |
| 190 | { |
| 191 | // Not implemented in Motif |
| 192 | m_tickFreq = n; |
| 193 | } |
| 194 | |
| 195 | void wxSlider::SetPageSize(int pageSize) |
| 196 | { |
| 197 | // Not implemented in Motif |
| 198 | m_pageSize = pageSize; |
| 199 | } |
| 200 | |
| 201 | int wxSlider::GetPageSize() const |
| 202 | { |
| 203 | return m_pageSize; |
| 204 | } |
| 205 | |
| 206 | void wxSlider::ClearSel() |
| 207 | { |
| 208 | // Not implemented in Motif |
| 209 | } |
| 210 | |
| 211 | void wxSlider::ClearTicks() |
| 212 | { |
| 213 | // Not implemented in Motif |
| 214 | } |
| 215 | |
| 216 | void wxSlider::SetLineSize(int lineSize) |
| 217 | { |
| 218 | // Not implemented in Motif |
| 219 | m_lineSize = lineSize; |
| 220 | } |
| 221 | |
| 222 | int wxSlider::GetLineSize() const |
| 223 | { |
| 224 | // Not implemented in Motif |
| 225 | return m_lineSize; |
| 226 | } |
| 227 | |
| 228 | int wxSlider::GetSelEnd() const |
| 229 | { |
| 230 | // Not implemented in Motif |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | int wxSlider::GetSelStart() const |
| 235 | { |
| 236 | // Not implemented in Motif |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | void wxSlider::SetSelection(int WXUNUSED(minPos), int WXUNUSED(maxPos)) |
| 241 | { |
| 242 | // Not implemented in Motif |
| 243 | } |
| 244 | |
| 245 | void wxSlider::SetThumbLength(int WXUNUSED(len)) |
| 246 | { |
| 247 | // Not implemented in Motif (?) |
| 248 | } |
| 249 | |
| 250 | int wxSlider::GetThumbLength() const |
| 251 | { |
| 252 | // Not implemented in Motif (?) |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | void wxSlider::SetTick(int WXUNUSED(tickPos)) |
| 257 | { |
| 258 | // Not implemented in Motif |
| 259 | } |
| 260 | |
| 261 | void wxSlider::Command (wxCommandEvent & event) |
| 262 | { |
| 263 | SetValue (event.GetInt()); |
| 264 | ProcessCommand (event); |
| 265 | } |
| 266 | |
| 267 | void wxSlider::ChangeFont(bool keepOriginalSize) |
| 268 | { |
| 269 | wxWindow::ChangeFont(keepOriginalSize); |
| 270 | } |
| 271 | |
| 272 | void wxSlider::ChangeBackgroundColour() |
| 273 | { |
| 274 | wxWindow::ChangeBackgroundColour(); |
| 275 | } |
| 276 | |
| 277 | void wxSlider::ChangeForegroundColour() |
| 278 | { |
| 279 | wxWindow::ChangeForegroundColour(); |
| 280 | } |
| 281 | |
| 282 | void wxSliderCallback (Widget widget, XtPointer clientData, XmScaleCallbackStruct * cbs) |
| 283 | { |
| 284 | wxSlider *slider = (wxSlider *) clientData; |
| 285 | switch (cbs->reason) |
| 286 | { |
| 287 | case XmCR_VALUE_CHANGED: |
| 288 | case XmCR_DRAG: |
| 289 | default: |
| 290 | { |
| 291 | // TODO: the XmCR_VALUE_CHANGED case should be handled |
| 292 | // differently (it's not sent continually as the slider moves). |
| 293 | // In which case we need a similar behaviour for other platforms. |
| 294 | |
| 295 | wxScrollEvent event(wxEVT_SCROLL_THUMBTRACK, slider->GetId()); |
| 296 | XtVaGetValues (widget, XmNvalue, &event.m_commandInt, NULL); |
| 297 | event.SetEventObject(slider); |
| 298 | slider->ProcessCommand(event); |
| 299 | |
| 300 | // Also send a wxCommandEvent for compatibility. |
| 301 | wxCommandEvent event2(wxEVT_COMMAND_SLIDER_UPDATED, slider->GetId()); |
| 302 | event2.SetEventObject(slider); |
| 303 | event2.SetInt( event.GetInt() ); |
| 304 | slider->ProcessCommand(event2); |
| 305 | break; |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | |