interface/slider.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        slider.h
   3 // Purpose:     interface of wxSlider
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxSlider
  11     @wxheader{slider.h}
  12
  13     A slider is a control with a handle which can be pulled
  14     back and forth to change the value.
  15
  16     On Windows, the track bar control is used.
  17
  18     Slider events are handled in the same way as a scrollbar.
  19
  20     @beginStyleTable
  21     @style{wxSL_HORIZONTAL}
  22            Displays the slider horizontally (this is the default).
  23     @style{wxSL_VERTICAL}
  24            Displays the slider vertically.
  25     @style{wxSL_AUTOTICKS}
  26            Displays tick marks.
  27     @style{wxSL_LABELS}
  28            Displays minimum, maximum and value labels.
  29     @style{wxSL_LEFT}
  30            Displays ticks on the left and forces the slider to be vertical.
  31     @style{wxSL_RIGHT}
  32            Displays ticks on the right and forces the slider to be vertical.
  33     @style{wxSL_TOP}
  34            Displays ticks on the top.
  35     @style{wxSL_BOTTOM}
  36            Displays ticks on the bottom (this is the default).
  37     @style{wxSL_SELRANGE}
  38            Allows the user to select a range on the slider. Windows only.
  39     @style{wxSL_INVERSE}
  40            Inverses the mininum and maximum endpoints on the slider. Not
  41            compatible with wxSL_SELRANGE.
  42     @endStyleTable
  43
  44     @library{wxcore}
  45     @category{ctrl}
  46     <!-- @appearance{slider.png} -->
  47
  48     @see @ref overview_eventhandlingoverview, wxScrollBar
  49 */
  50 class wxSlider : public wxControl
  51 {
  52 public:
  53     //@{
  54     /**
  55         Constructor, creating and showing a slider.
  56
  57         @param parent
  58             Parent window. Must not be @NULL.
  59         @param id
  60             Window identifier. The value wxID_ANY indicates a default value.
  61         @param value
  62             Initial position for the slider.
  63         @param minValue
  64             Minimum slider position.
  65         @param maxValue
  66             Maximum slider position.
  67         @param size
  68             Window size. If wxDefaultSize is specified then a default size
  69         is chosen.
  70         @param style
  71             Window style. See wxSlider.
  72         @param validator
  73             Window validator.
  74         @param name
  75             Window name.
  76
  77         @see Create(), wxValidator
  78     */
  79     wxSlider();
  80     wxSlider(wxWindow* parent, wxWindowID id, int value,
  81              int minValue, int maxValue,
  82              const wxPoint& point = wxDefaultPosition,
  83              const wxSize& size = wxDefaultSize,
  84              long style = wxSL_HORIZONTAL,
  85              const wxValidator& validator = wxDefaultValidator,
  86              const wxString& name = "slider");
  87     //@}
  88
  89     /**
  90         Destructor, destroying the slider.
  91     */
  92     ~wxSlider();
  93
  94     /**
  95         Clears the selection, for a slider with the @b wxSL_SELRANGE style.
  96
  97         @remarks Windows 95 only.
  98     */
  99     void ClearSel();
 100
 101     /**
 102         Clears the ticks.
 103
 104         @remarks Windows 95 only.
 105     */
 106     void ClearTicks();
 107
 108     /**
 109         Used for two-step slider construction. See wxSlider()
 110         for further details.
 111     */
 112     bool Create(wxWindow* parent, wxWindowID id, int value,
 113                 int minValue, int maxValue,
 114                 const wxPoint& point = wxDefaultPosition,
 115                 const wxSize& size = wxDefaultSize,
 116                 long style = wxSL_HORIZONTAL,
 117                 const wxValidator& validator = wxDefaultValidator,
 118                 const wxString& name = "slider");
 119
 120     /**
 121         Returns the line size.
 122
 123         @see SetLineSize()
 124     */
 125     int GetLineSize() const;
 126
 127     /**
 128         Gets the maximum slider value.
 129
 130         @see GetMin(), SetRange()
 131     */
 132     int GetMax() const;
 133
 134     /**
 135         Gets the minimum slider value.
 136
 137         @see GetMin(), SetRange()
 138     */
 139     int GetMin() const;
 140
 141     /**
 142         Returns the page size.
 143
 144         @see SetPageSize()
 145     */
 146     int GetPageSize() const;
 147
 148     /**
 149         Returns the selection end point.
 150
 151         @remarks Windows 95 only.
 152
 153         @see GetSelStart(), SetSelection()
 154     */
 155     int GetSelEnd() const;
 156
 157     /**
 158         Returns the selection start point.
 159
 160         @remarks Windows 95 only.
 161
 162         @see GetSelEnd(), SetSelection()
 163     */
 164     int GetSelStart() const;
 165
 166     /**
 167         Returns the thumb length.
 168
 169         @remarks Windows 95 only.
 170
 171         @see SetThumbLength()
 172     */
 173     int GetThumbLength() const;
 174
 175     /**
 176         Returns the tick frequency.
 177
 178         @remarks Windows 95 only.
 179
 180         @see SetTickFreq()
 181     */
 182     int GetTickFreq() const;
 183
 184     /**
 185         Gets the current slider value.
 186
 187         @see GetMin(), GetMax(), SetValue()
 188     */
 189     int GetValue() const;
 190
 191     /**
 192         Sets the line size for the slider.
 193
 194         @param lineSize
 195             The number of steps the slider moves when the user moves it up or down a
 196         line.
 197
 198         @see GetLineSize()
 199     */
 200     void SetLineSize(int lineSize);
 201
 202     /**
 203         Sets the page size for the slider.
 204
 205         @param pageSize
 206             The number of steps the slider moves when the user pages up or down.
 207
 208         @see GetPageSize()
 209     */
 210     void SetPageSize(int pageSize);
 211
 212     /**
 213         Sets the minimum and maximum slider values.
 214
 215         @see GetMin(), GetMax()
 216     */
 217     void SetRange(int minValue, int maxValue);
 218
 219     /**
 220         Sets the selection.
 221
 222         @param startPos
 223             The selection start position.
 224         @param endPos
 225             The selection end position.
 226
 227         @remarks Windows 95 only.
 228
 229         @see GetSelStart(), GetSelEnd()
 230     */
 231     void SetSelection(int startPos, int endPos);
 232
 233     /**
 234         Sets the slider thumb length.
 235
 236         @param len
 237             The thumb length.
 238
 239         @remarks Windows 95 only.
 240
 241         @see GetThumbLength()
 242     */
 243     void SetThumbLength(int len);
 244
 245     /**
 246         Sets a tick position.
 247
 248         @param tickPos
 249             The tick position.
 250
 251         @remarks Windows 95 only.
 252
 253         @see SetTickFreq()
 254     */
 255     void SetTick(int tickPos);
 256
 257     /**
 258         Sets the tick mark frequency and position.
 259
 260         @param n
 261             Frequency. For example, if the frequency is set to two, a tick mark is
 262         displayed for
 263             every other increment in the slider's range.
 264         @param pos
 265             Position. Must be greater than zero. TODO: what is this for?
 266
 267         @remarks Windows 95 only.
 268
 269         @see GetTickFreq()
 270     */
 271     void SetTickFreq(int n, int pos);
 272
 273     /**
 274         Sets the slider position.
 275
 276         @param value
 277             The slider position.
 278     */
 279     void SetValue(int value);
 280 };
 281