src/gtk/settings.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/settings.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "settings.h"
  13 #endif
  14
  15 #include "wx/settings.h"
  16 #include "wx/debug.h"
  17 #include "wx/module.h"
  18 #include "wx/cmndata.h"
  19
  20 #include <gdk/gdk.h>
  21 #include <gdk/gdkprivate.h>
  22 #include <gtk/gtk.h>
  23
  24 /*
  25 #define wxSYS_COLOUR_SCROLLBAR         0
  26 #define wxSYS_COLOUR_BACKGROUND        1
  27 #define wxSYS_COLOUR_ACTIVECAPTION     2
  28 #define wxSYS_COLOUR_INACTIVECAPTION   3
  29 #define wxSYS_COLOUR_MENU              4
  30 #define wxSYS_COLOUR_WINDOW            5
  31 #define wxSYS_COLOUR_WINDOWFRAME       6
  32 #define wxSYS_COLOUR_MENUTEXT          7
  33 #define wxSYS_COLOUR_WINDOWTEXT        8
  34 #define wxSYS_COLOUR_CAPTIONTEXT       9
  35 #define wxSYS_COLOUR_ACTIVEBORDER      10
  36 #define wxSYS_COLOUR_INACTIVEBORDER    11
  37 #define wxSYS_COLOUR_APPWORKSPACE      12
  38 #define wxSYS_COLOUR_HIGHLIGHT         13
  39 #define wxSYS_COLOUR_HIGHLIGHTTEXT     14
  40 #define wxSYS_COLOUR_BTNFACE           15
  41 #define wxSYS_COLOUR_BTNSHADOW         16
  42 #define wxSYS_COLOUR_GRAYTEXT          17
  43 #define wxSYS_COLOUR_BTNTEXT           18
  44 #define wxSYS_COLOUR_INACTIVECAPTIONTEXT 19
  45 #define wxSYS_COLOUR_BTNHIGHLIGHT      20
  46
  47 #define wxSYS_COLOUR_3DDKSHADOW        21
  48 #define wxSYS_COLOUR_3DLIGHT           22
  49 #define wxSYS_COLOUR_INFOTEXT          23
  50 #define wxSYS_COLOUR_INFOBK            24
  51
  52 #define wxSYS_COLOUR_DESKTOP           wxSYS_COLOUR_BACKGROUND
  53 #define wxSYS_COLOUR_3DFACE            wxSYS_COLOUR_BTNFACE
  54 #define wxSYS_COLOUR_3DSHADOW          wxSYS_COLOUR_BTNSHADOW
  55 #define wxSYS_COLOUR_3DHIGHLIGHT       wxSYS_COLOUR_BTNHIGHLIGHT
  56 #define wxSYS_COLOUR_3DHILIGHT         wxSYS_COLOUR_BTNHIGHLIGHT
  57 #define wxSYS_COLOUR_BTNHILIGHT        wxSYS_COLOUR_BTNHIGHLIGHT
  58 */
  59
  60 #define SHIFT (8*(sizeof(short int)-sizeof(char)))
  61
  62 //wxColour *g_systemWinColour          = (wxColour *) NULL;
  63 wxColour *g_systemBtnFaceColour       = (wxColour *) NULL;
  64 wxColour *g_systemBtnShadowColour     = (wxColour *) NULL;
  65 wxColour *g_systemBtnHighlightColour  = (wxColour *) NULL;
  66 wxColour *g_systemHighlightColour     = (wxColour *) NULL;
  67 wxColour *g_systemHighlightTextColour = (wxColour *) NULL;
  68 wxColour *g_systemListBoxColour       = (wxColour *) NULL;
  69 wxColour *g_systemBtnTextColour       = (wxColour *) NULL;
  70
  71 wxFont *g_systemFont = (wxFont *) NULL;
  72
  73 // ----------------------------------------------------------------------------
  74 // wxSystemSettingsModule
  75 // ----------------------------------------------------------------------------
  76
  77 class wxSystemSettingsModule : public wxModule
  78 {
  79 public:
  80     bool OnInit() { return TRUE; }
  81     void OnExit()
  82     {
  83         //delete g_systemWinColour;
  84         delete g_systemBtnFaceColour;
  85         delete g_systemBtnShadowColour;
  86         delete g_systemBtnHighlightColour;
  87         delete g_systemHighlightColour;
  88         delete g_systemHighlightTextColour;
  89         delete g_systemListBoxColour;
  90         delete g_systemFont;
  91         delete g_systemBtnTextColour;
  92     }
  93     DECLARE_DYNAMIC_CLASS(wxSystemSettingsModule)
  94 };
  95
  96 IMPLEMENT_DYNAMIC_CLASS(wxSystemSettingsModule, wxModule)
  97
  98 // ----------------------------------------------------------------------------
  99 // wxSystemSettings implementation
 100 // ----------------------------------------------------------------------------
 101
 102 // kind of widget to use in GetColourFromGTKWidget
 103 enum wxGtkWidgetType
 104 {
 105     wxGTK_BUTTON,
 106     wxGTK_LIST
 107 };
 108
 109 // the colour we need
 110 enum wxGtkColourType
 111 {
 112     wxGTK_FG,
 113     wxGTK_BG,
 114     wxGTK_BASE
 115 };
 116
 117 // wxSystemSettings::GetColour() helper: get the colours from a GTK+
 118 // widget style, return true if we did get them, false to use defaults
 119 static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
 120                                    wxGtkWidgetType type = wxGTK_BUTTON,
 121                                    GtkStateType state = GTK_STATE_NORMAL,
 122                                    wxGtkColourType colour = wxGTK_BG)
 123 {
 124     GtkWidget *widget;
 125     switch ( type )
 126     {
 127         default:
 128             wxFAIL_MSG( _T("unexpected GTK widget type") );
 129             // fall through
 130
 131         case wxGTK_BUTTON:
 132             widget = gtk_button_new();
 133             break;
 134
 135         case wxGTK_LIST:
 136             widget = gtk_list_new();
 137     }
 138
 139     GtkStyle *def = gtk_rc_get_style( widget );
 140     if ( !def )
 141         def = gtk_widget_get_default_style();
 142
 143     bool ok;
 144     if ( def )
 145     {
 146         GdkColor *col;
 147         switch ( colour )
 148         {
 149             default:
 150                 wxFAIL_MSG( _T("unexpected GTK colour type") );
 151                 // fall through
 152
 153             case wxGTK_FG:
 154                 col = def->fg;
 155                 break;
 156
 157             case wxGTK_BG:
 158                 col = def->bg;
 159                 break;
 160
 161             case wxGTK_BASE:
 162                 col = def->base;
 163                 break;
 164         }
 165
 166         red = col[state].red;
 167         green = col[state].green;
 168         blue = col[state].blue;
 169
 170         ok = TRUE;
 171     }
 172     else
 173     {
 174         ok = FALSE;
 175     }
 176
 177     gtk_widget_destroy( widget );
 178
 179     return ok;
 180 }
 181
 182 wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
 183 {
 184     switch (index)
 185     {
 186         case wxSYS_COLOUR_SCROLLBAR:
 187         case wxSYS_COLOUR_BACKGROUND:
 188         case wxSYS_COLOUR_ACTIVECAPTION:
 189         case wxSYS_COLOUR_INACTIVECAPTION:
 190         case wxSYS_COLOUR_MENU:
 191         case wxSYS_COLOUR_WINDOWFRAME:
 192         case wxSYS_COLOUR_ACTIVEBORDER:
 193         case wxSYS_COLOUR_INACTIVEBORDER:
 194         case wxSYS_COLOUR_BTNFACE:
 195         case wxSYS_COLOUR_3DLIGHT:
 196             if (!g_systemBtnFaceColour)
 197             {
 198                 int red, green, blue;
 199                 if ( !GetColourFromGTKWidget(red, green, blue) )
 200                 {
 201                     red =
 202                     green = 0;
 203                     blue = 0x9c40;
 204                 }
 205
 206                 g_systemBtnFaceColour = new wxColour( red   >> SHIFT,
 207                                                       green >> SHIFT,
 208                                                       blue  >> SHIFT );
 209             }
 210             return *g_systemBtnFaceColour;
 211
 212         case wxSYS_COLOUR_WINDOW:
 213             return *wxWHITE;
 214
 215         case wxSYS_COLOUR_3DDKSHADOW:
 216             return *wxBLACK;
 217
 218         case wxSYS_COLOUR_GRAYTEXT:
 219         case wxSYS_COLOUR_BTNSHADOW:
 220         //case wxSYS_COLOUR_3DSHADOW:
 221             if (!g_systemBtnShadowColour)
 222             {
 223                 wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
 224                 g_systemBtnShadowColour =
 225                    new wxColour((unsigned char) (faceColour.Red() * 0.666),
 226                                 (unsigned char) (faceColour.Green() * 0.666),
 227                                 (unsigned char) (faceColour.Blue() * 0.666));
 228             }
 229
 230             return *g_systemBtnShadowColour;
 231
 232         case wxSYS_COLOUR_3DHIGHLIGHT:
 233         //case wxSYS_COLOUR_BTNHIGHLIGHT:
 234             return * wxWHITE;
 235 /* I think this should normally be white (JACS 8/2000)
 236
 237    Hmm, I'm quite sure it shouldn't ... (VZ 20.08.01)
 238             if (!g_systemBtnHighlightColour)
 239             {
 240                 g_systemBtnHighlightColour =
 241                     new wxColour( 0xea60 >> SHIFT,
 242                                   0xea60 >> SHIFT,
 243                                   0xea60 >> SHIFT );
 244             }
 245             return *g_systemBtnHighlightColour;
 246 */
 247
 248         case wxSYS_COLOUR_HIGHLIGHT:
 249             if (!g_systemHighlightColour)
 250             {
 251                 int red, green, blue;
 252                 if ( !GetColourFromGTKWidget(red, green, blue,
 253                                              wxGTK_BUTTON,
 254                                              GTK_STATE_SELECTED) )
 255                 {
 256                     red =
 257                     green = 0;
 258                     blue = 0x9c40;
 259                 }
 260
 261                 g_systemHighlightColour = new wxColour( red   >> SHIFT,
 262                                                         green >> SHIFT,
 263                                                         blue  >> SHIFT );
 264             }
 265             return *g_systemHighlightColour;
 266
 267         case wxSYS_COLOUR_LISTBOX:
 268             if (!g_systemListBoxColour)
 269             {
 270                 int red, green, blue;
 271                 if ( GetColourFromGTKWidget(red, green, blue,
 272                                             wxGTK_LIST,
 273                                             GTK_STATE_NORMAL,
 274                                             wxGTK_BASE) )
 275                 {
 276                     g_systemListBoxColour = new wxColour( red   >> SHIFT,
 277                                                           green >> SHIFT,
 278                                                           blue  >> SHIFT );
 279                 }
 280                 else
 281                 {
 282                     g_systemListBoxColour = new wxColour(*wxWHITE);
 283                 }
 284             }
 285             return *g_systemListBoxColour;
 286
 287         case wxSYS_COLOUR_MENUTEXT:
 288         case wxSYS_COLOUR_WINDOWTEXT:
 289         case wxSYS_COLOUR_CAPTIONTEXT:
 290         case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
 291         case wxSYS_COLOUR_BTNTEXT:
 292         case wxSYS_COLOUR_INFOTEXT:
 293             if (!g_systemBtnTextColour)
 294             {
 295                 int red, green, blue;
 296                 if ( !GetColourFromGTKWidget(red, green, blue,
 297                                              wxGTK_BUTTON,
 298                                              GTK_STATE_NORMAL,
 299                                              wxGTK_FG) )
 300                 {
 301                     red =
 302                     green =
 303                     blue = 0;
 304                 }
 305
 306                 g_systemBtnTextColour = new wxColour( red   >> SHIFT,
 307                                                       green >> SHIFT,
 308                                                       blue  >> SHIFT );
 309             }
 310             return *g_systemBtnTextColour;
 311
 312         case wxSYS_COLOUR_HIGHLIGHTTEXT:
 313             if (!g_systemHighlightTextColour)
 314             {
 315                 wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
 316                 if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
 317                     g_systemHighlightTextColour = new wxColour(*wxBLACK);
 318                 else
 319                     g_systemHighlightTextColour = new wxColour(*wxWHITE);
 320             }
 321             return *g_systemHighlightTextColour;
 322
 323         case wxSYS_COLOUR_INFOBK:
 324         case wxSYS_COLOUR_APPWORKSPACE:
 325             return *wxWHITE;    // ?
 326   }
 327
 328   return *wxWHITE;
 329 }
 330
 331 wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
 332 {
 333     switch (index)
 334     {
 335         case wxSYS_OEM_FIXED_FONT:
 336         case wxSYS_ANSI_FIXED_FONT:
 337         case wxSYS_SYSTEM_FIXED_FONT:
 338         {
 339             return *wxNORMAL_FONT;
 340         }
 341         case wxSYS_ANSI_VAR_FONT:
 342         case wxSYS_SYSTEM_FONT:
 343         case wxSYS_DEVICE_DEFAULT_FONT:
 344         case wxSYS_DEFAULT_GUI_FONT:
 345         {
 346             if (!g_systemFont)
 347             {
 348                 g_systemFont = new wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
 349
 350             }
 351             return *g_systemFont;
 352         }
 353
 354         default:
 355             return wxNullFont;
 356     }
 357 }
 358
 359 int wxSystemSettingsNative::GetMetric( wxSystemMetric index )
 360 {
 361     switch (index)
 362     {
 363         case wxSYS_SCREEN_X:   return gdk_screen_width();
 364         case wxSYS_SCREEN_Y:   return gdk_screen_height();
 365         case wxSYS_HSCROLL_Y:  return 15;
 366         case wxSYS_VSCROLL_X:  return 15;
 367         default:
 368             wxFAIL_MSG( wxT("wxSystemSettings::GetMetric not fully implemented") );
 369             return 0;
 370     }
 371 }
 372
 373 bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
 374 {
 375     switch (index)
 376     {
 377         case wxSYS_CAN_ICONIZE_FRAME:
 378             return FALSE;
 379             break;
 380         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 381             return TRUE;
 382             break;
 383         default:
 384             return FALSE;
 385     }
 386 }