src/motif/spinbutt.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinButton
   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 "spinbutt.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #include "wx/spinbutt.h"
  20 #include "wx/spinctrl.h"
  21 #include "wx/timer.h"
  22
  23 #ifdef __VMS__
  24 #pragma message disable nosimpint
  25 #endif
  26 #include <Xm/ArrowBG.h>
  27 #include <Xm/ArrowB.h>
  28 #ifdef __VMS__
  29 #pragma message enable nosimpint
  30 #endif
  31
  32 #include "wx/motif/private.h"
  33
  34 // helper class
  35 enum ArrowDirection
  36 {
  37     wxARROW_UP,
  38     wxARROW_DOWN,
  39     wxARROW_LEFT,
  40     wxARROW_RIGHT
  41 };
  42
  43 class wxArrowButtonTimer;
  44 class wxArrowButton;
  45
  46 // ----------------------------------------------------------------------------
  47 // wxArrowButtonTimer
  48 // ----------------------------------------------------------------------------
  49
  50 static const unsigned int TICK_BEFORE_START = 10;
  51 static const unsigned int TICK_BEFORE_EXPONENTIAL = 40;
  52 static const unsigned int MAX_INCREMENT = 150;
  53 static const unsigned int TICK_INTERVAL = 113;
  54
  55 class wxArrowButtonTimer : public wxTimer
  56 {
  57 public:
  58     wxArrowButtonTimer( wxArrowButton* btn, int sign )
  59         : m_sign( sign ),
  60           m_button( btn )
  61         { Reset(); };
  62
  63     void Notify();
  64     void Reset() { m_ticks = 0; m_increment = 1; }
  65 private:
  66     unsigned int m_ticks;
  67     unsigned int m_increment;
  68     int m_sign;
  69     wxArrowButton* m_button;
  70 };
  71
  72 // ----------------------------------------------------------------------------
  73 // wxArrowButton
  74 // ----------------------------------------------------------------------------
  75
  76 class wxArrowButton : public wxControl
  77 {
  78     friend class wxArrowButtonTimer;
  79 public:
  80     wxArrowButton( int increment )
  81         : m_increment( increment ),
  82           m_timer( 0 ) {}
  83
  84     wxArrowButton( wxSpinButton* parent, wxWindowID id, ArrowDirection d,
  85                    const wxPoint& pos = wxDefaultPosition,
  86                    const wxSize& size = wxDefaultSize, int increment = 1 )
  87         : wxControl(),
  88           m_increment( increment ),
  89           m_timer( 0 )
  90     {
  91         Create( parent, id, d, pos, size );
  92     }
  93
  94     ~wxArrowButton()
  95         { delete m_timer; }
  96
  97     bool Create( wxSpinButton* parent, wxWindowID id, ArrowDirection d,
  98                  const wxPoint& pos = wxDefaultPosition,
  99                  const wxSize& size = wxDefaultSize );
 100 private:
 101     // creates a new timer object, or stops the currently running one
 102     wxTimer* GetFreshTimer();
 103     wxSpinButton* GetSpinButton() { return (wxSpinButton*)GetParent(); }
 104     static void SpinButtonCallback( Widget w, XtPointer clientData,
 105                                     XtPointer WXUNUSED(ptr) );
 106     static void StartTimerCallback( Widget w, XtPointer clientData,
 107                                     XtPointer WXUNUSED(ptr) );
 108
 109     static void  StopTimerCallback( Widget w, XtPointer clientData,
 110                                     XtPointer WXUNUSED(ptr) );
 111
 112     int m_increment;
 113     wxArrowButtonTimer* m_timer;
 114 };
 115
 116 // ----------------------------------------------------------------------------
 117 // wxArrowButtonTimer implementation
 118 // ----------------------------------------------------------------------------
 119
 120 void wxArrowButtonTimer::Notify()
 121 {
 122     ++m_ticks;
 123     if( m_ticks < TICK_BEFORE_START ) return;
 124     // increment every other tick
 125     if( m_ticks <= TICK_BEFORE_EXPONENTIAL && m_ticks & 1 )
 126         return;
 127     if( m_ticks > TICK_BEFORE_EXPONENTIAL )
 128         m_increment = 2 * m_increment;
 129     if( m_increment >= MAX_INCREMENT ) m_increment = MAX_INCREMENT;
 130     m_button->GetSpinButton()->Increment( m_sign * m_increment );
 131 }
 132
 133 // ----------------------------------------------------------------------------
 134 // wxArrowButton implementation
 135 // ----------------------------------------------------------------------------
 136
 137 wxTimer* wxArrowButton::GetFreshTimer()
 138 {
 139     if( m_timer )
 140     {
 141         m_timer->Stop();
 142         m_timer->Reset();
 143     }
 144     else
 145         m_timer = new wxArrowButtonTimer( this, m_increment );
 146
 147     return m_timer;
 148 }
 149
 150 void wxArrowButton::SpinButtonCallback( Widget w, XtPointer clientData,
 151                                         XtPointer WXUNUSED(ptr) )
 152 {
 153     if( !wxGetWindowFromTable( w ) )
 154         // Widget has been deleted!
 155         return;
 156
 157     wxArrowButton* btn = (wxArrowButton*)clientData;
 158
 159     btn->GetSpinButton()->Increment( btn->m_increment );
 160 }
 161
 162 void wxArrowButton::StartTimerCallback( Widget w, XtPointer clientData,
 163                                         XtPointer WXUNUSED(ptr) )
 164 {
 165     if( !wxGetWindowFromTable( w ) )
 166         // Widget has been deleted!
 167         return;
 168
 169     wxArrowButton* btn = (wxArrowButton*)clientData;
 170     btn->GetFreshTimer()->Start( TICK_INTERVAL );
 171 }
 172
 173 void wxArrowButton::StopTimerCallback( Widget w, XtPointer clientData,
 174                                        XtPointer WXUNUSED(ptr) )
 175 {
 176     if( !wxGetWindowFromTable( w ) )
 177         // Widget has been deleted!
 178         return;
 179
 180     wxArrowButton* btn = (wxArrowButton*)clientData;
 181     delete btn->m_timer;
 182     btn->m_timer = 0;
 183 }
 184
 185 bool wxArrowButton::Create( wxSpinButton* parent, wxWindowID id,
 186                             ArrowDirection d,
 187                             const wxPoint& pos, const wxSize& size )
 188 {
 189     int arrow_dir = XmARROW_UP;
 190
 191     switch( d )
 192     {
 193     case wxARROW_UP:
 194         arrow_dir = XmARROW_UP;
 195         break;
 196     case wxARROW_DOWN:
 197         arrow_dir = XmARROW_DOWN;
 198         break;
 199     case wxARROW_LEFT:
 200         arrow_dir = XmARROW_LEFT;
 201         break;
 202     case wxARROW_RIGHT:
 203         arrow_dir = XmARROW_RIGHT;
 204         break;
 205     }
 206
 207     if( parent ) parent->AddChild( this );
 208
 209     Widget parentWidget = (Widget) parent->GetClientWidget();
 210     m_mainWidget = (WXWidget) XtVaCreateManagedWidget( "XmArrowButton",
 211         xmArrowButtonWidgetClass,
 212         parentWidget,
 213         XmNarrowDirection, arrow_dir,
 214         XmNborderWidth, 0,
 215         XmNshadowThickness, 0,
 216         NULL );
 217
 218     XtAddCallback( (Widget) m_mainWidget,
 219                    XmNactivateCallback, (XtCallbackProc) SpinButtonCallback,
 220                    (XtPointer) this );
 221     XtAddCallback( (Widget) m_mainWidget,
 222                    XmNarmCallback, (XtCallbackProc) StartTimerCallback,
 223                    (XtPointer) this );
 224     XtAddCallback( (Widget) m_mainWidget,
 225                    XmNactivateCallback, (XtCallbackProc) StopTimerCallback,
 226                    (XtPointer) this );
 227
 228     AttachWidget( parent, m_mainWidget, (WXWidget) NULL,
 229                   pos.x, pos.y, size.x, size.y );
 230
 231     SetForegroundColour( parent->GetBackgroundColour() );
 232
 233     return TRUE;
 234 }
 235
 236 // ----------------------------------------------------------------------------
 237 // wxSpinButton
 238 // ----------------------------------------------------------------------------
 239
 240 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton, wxControl);
 241 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxNotifyEvent);
 242
 243 static void CalcSizes( wxPoint pt, wxSize sz,
 244                        wxPoint& pt1, wxSize& sz1,
 245                        wxPoint& pt2, wxSize& sz2,
 246                        bool isVertical )
 247 {
 248     typedef int wxSize::* CDPTR1;
 249     typedef int wxPoint::* CDPTR2;
 250
 251     sz1 = sz2 = sz;
 252     pt2 = pt1 = pt;
 253
 254     CDPTR1 szm = isVertical ? &wxSize::y : &wxSize::x;
 255     CDPTR2 ptm = isVertical ? &wxPoint::y : &wxPoint::x;
 256     int dim = sz.*szm, half = dim/2;
 257
 258     sz1.*szm = half;
 259     sz2.*szm = dim - half;
 260     pt2.*ptm += half + 1;
 261 }
 262
 263 bool wxSpinButton::Create( wxWindow *parent, wxWindowID id,
 264                            const wxPoint& pos, const wxSize& size,
 265                            long style, const wxString& name )
 266 {
 267     m_windowStyle = style;
 268
 269     wxSize newSize = GetBestSize();
 270     if( size.x != -1 ) newSize.x = size.x;
 271     if( size.y != -1 ) newSize.y = size.y;
 272
 273     if( !wxControl::Create( parent, id, pos, newSize, style ) )
 274     {
 275         return FALSE;
 276     }
 277
 278     SetName(name);
 279
 280     m_windowId = ( id == -1 ) ? NewControlId() : id;
 281
 282     bool isVert = IsVertical();
 283     wxPoint pt1, pt2;
 284     wxSize sz1, sz2;
 285     CalcSizes( wxPoint(0,0), newSize, pt1, sz1, pt2, sz2, isVert );
 286     m_up = new wxArrowButton( this, -1, isVert ? wxARROW_UP : wxARROW_RIGHT,
 287                               pt1, sz1, 1 );
 288     m_down = new wxArrowButton( this, -1,
 289                                 isVert ? wxARROW_DOWN : wxARROW_LEFT,
 290                                 pt2, sz2, -1 );
 291
 292     return TRUE;
 293 }
 294
 295 wxSpinButton::~wxSpinButton()
 296 {
 297 }
 298
 299 void wxSpinButton::DoMoveWindow(int x, int y, int width, int height)
 300 {
 301     wxControl::DoMoveWindow( x, y, width, height );
 302
 303     wxPoint pt1, pt2;
 304     wxSize sz1, sz2;
 305
 306     CalcSizes( wxPoint(0,0), wxSize(width,height), pt1,
 307                sz1, pt2, sz2, IsVertical() );
 308     m_up->SetSize( pt1.x, pt1.y, sz1.x, sz1.y );
 309     m_down->SetSize( pt2.x, pt2.y, sz2.x, sz2.y );
 310 }
 311
 312 void wxSpinButton::DoSetSize(int x, int y, int width, int height,
 313                              int sizeFlags)
 314 {
 315 #ifdef __VMS__
 316 #pragma message disable codcauunr
 317 #endif
 318     if( sizeFlags & wxSIZE_USE_EXISTING && width == -1 )
 319         width = GetSize().x;
 320     if( sizeFlags & wxSIZE_USE_EXISTING && height == -1 )
 321         height = GetSize().y;
 322 #ifdef __VMS__
 323 #pragma message enable codcauunr
 324 #endif
 325
 326     wxControl::DoSetSize(x, y, width, height, 0);
 327 }
 328
 329 void wxSpinButton::Increment( int delta )
 330 {
 331     if( m_pos < m_min ) m_pos = m_min;
 332     if( m_pos > m_max ) m_pos = m_max;
 333
 334     int npos = m_pos + delta;
 335
 336     if( npos < m_min )
 337     {
 338         if( GetWindowStyle() & wxSP_WRAP )
 339             npos = m_max;
 340         else
 341             npos = m_min;
 342     }
 343     if( npos > m_max )
 344     {
 345         if( GetWindowStyle() & wxSP_WRAP )
 346             npos = m_min;
 347         else
 348             npos = m_max;
 349     }
 350     if( npos == m_pos ) return;
 351
 352     wxSpinEvent event( delta > 0 ? wxEVT_SCROLL_LINEUP : wxEVT_SCROLL_LINEDOWN,
 353                        m_windowId );
 354     event.SetPosition( npos );
 355     event.SetEventObject( this );
 356
 357     GetEventHandler()->ProcessEvent( event );
 358
 359     if( event.IsAllowed() )
 360     {
 361         m_pos = npos;
 362         event.SetEventType( wxEVT_SCROLL_THUMBTRACK );
 363         event.SetPosition( m_pos );
 364
 365         GetEventHandler()->ProcessEvent( event );
 366     }
 367 }
 368
 369 wxSize wxSpinButton::DoGetBestSize() const
 370 {
 371     return IsVertical() ? wxSize( 20, 30 ) : wxSize( 30, 20 );
 372 }
 373
 374 // Attributes
 375 ////////////////////////////////////////////////////////////////////////////
 376
 377 int wxSpinButton::GetValue() const
 378 {
 379     return m_pos;
 380 }
 381
 382 void wxSpinButton::SetValue(int val)
 383 {
 384     m_pos = val;
 385 }
 386
 387 void wxSpinButton::SetRange(int minVal, int maxVal)
 388 {
 389     wxSpinButtonBase::SetRange(minVal, maxVal);
 390 }
 391
 392 void wxSpinButton::ChangeFont(bool WXUNUSED(keepOriginalSize))
 393 {
 394     // TODO
 395 }
 396
 397 void wxSpinButton::ChangeBackgroundColour()
 398 {
 399     wxControl::ChangeBackgroundColour();
 400 }
 401
 402 void wxSpinButton::ChangeForegroundColour()
 403 {
 404     // TODO
 405 }