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 extern GdkFont *GtkGetDefaultGuiFont();
  25
  26
  27 /*
  28 #define wxSYS_COLOUR_SCROLLBAR         0
  29 #define wxSYS_COLOUR_BACKGROUND        1
  30 #define wxSYS_COLOUR_ACTIVECAPTION     2
  31 #define wxSYS_COLOUR_INACTIVECAPTION   3
  32 #define wxSYS_COLOUR_MENU              4
  33 #define wxSYS_COLOUR_WINDOW            5
  34 #define wxSYS_COLOUR_WINDOWFRAME       6
  35 #define wxSYS_COLOUR_MENUTEXT          7
  36 #define wxSYS_COLOUR_WINDOWTEXT        8
  37 #define wxSYS_COLOUR_CAPTIONTEXT       9
  38 #define wxSYS_COLOUR_ACTIVEBORDER      10
  39 #define wxSYS_COLOUR_INACTIVEBORDER    11
  40 #define wxSYS_COLOUR_APPWORKSPACE      12
  41 #define wxSYS_COLOUR_HIGHLIGHT         13
  42 #define wxSYS_COLOUR_HIGHLIGHTTEXT     14
  43 #define wxSYS_COLOUR_BTNFACE           15
  44 #define wxSYS_COLOUR_BTNSHADOW         16
  45 #define wxSYS_COLOUR_GRAYTEXT          17
  46 #define wxSYS_COLOUR_BTNTEXT           18
  47 #define wxSYS_COLOUR_INACTIVECAPTIONTEXT 19
  48 #define wxSYS_COLOUR_BTNHIGHLIGHT      20
  49
  50 #define wxSYS_COLOUR_3DDKSHADOW        21
  51 #define wxSYS_COLOUR_3DLIGHT           22
  52 #define wxSYS_COLOUR_INFOTEXT          23
  53 #define wxSYS_COLOUR_INFOBK            24
  54
  55 #define wxSYS_COLOUR_DESKTOP           wxSYS_COLOUR_BACKGROUND
  56 #define wxSYS_COLOUR_3DFACE            wxSYS_COLOUR_BTNFACE
  57 #define wxSYS_COLOUR_3DSHADOW          wxSYS_COLOUR_BTNSHADOW
  58 #define wxSYS_COLOUR_3DHIGHLIGHT       wxSYS_COLOUR_BTNHIGHLIGHT
  59 #define wxSYS_COLOUR_3DHILIGHT         wxSYS_COLOUR_BTNHIGHLIGHT
  60 #define wxSYS_COLOUR_BTNHILIGHT        wxSYS_COLOUR_BTNHIGHLIGHT
  61 */
  62
  63 #define SHIFT (8*(sizeof(short int)-sizeof(char)))
  64
  65 //wxColour *g_systemWinColour          = (wxColour *) NULL;
  66 wxColour *g_systemBtnFaceColour       = (wxColour *) NULL;
  67 wxColour *g_systemBtnShadowColour     = (wxColour *) NULL;
  68 wxColour *g_systemBtnHighlightColour  = (wxColour *) NULL;
  69 wxColour *g_systemHighlightColour     = (wxColour *) NULL;
  70 wxColour *g_systemHighlightTextColour = (wxColour *) NULL;
  71 wxColour *g_systemListBoxColour       = (wxColour *) NULL;
  72 wxColour *g_systemBtnTextColour       = (wxColour *) NULL;
  73
  74 wxFont *g_systemFont = (wxFont *) NULL;
  75
  76 // ----------------------------------------------------------------------------
  77 // wxSystemSettingsModule
  78 // ----------------------------------------------------------------------------
  79
  80 class wxSystemSettingsModule : public wxModule
  81 {
  82 public:
  83     bool OnInit() { return TRUE; }
  84     void OnExit()
  85     {
  86         //delete g_systemWinColour;
  87         delete g_systemBtnFaceColour;
  88         delete g_systemBtnShadowColour;
  89         delete g_systemBtnHighlightColour;
  90         delete g_systemHighlightColour;
  91         delete g_systemHighlightTextColour;
  92         delete g_systemListBoxColour;
  93         delete g_systemFont;
  94         delete g_systemBtnTextColour;
  95     }
  96     DECLARE_DYNAMIC_CLASS(wxSystemSettingsModule)
  97 };
  98
  99 IMPLEMENT_DYNAMIC_CLASS(wxSystemSettingsModule, wxModule)
 100
 101 // ----------------------------------------------------------------------------
 102 // wxSystemSettings implementation
 103 // ----------------------------------------------------------------------------
 104
 105 // kind of widget to use in GetColourFromGTKWidget
 106 enum wxGtkWidgetType
 107 {
 108     wxGTK_BUTTON,
 109     wxGTK_LIST
 110 };
 111
 112 // the colour we need
 113 enum wxGtkColourType
 114 {
 115     wxGTK_FG,
 116     wxGTK_BG,
 117     wxGTK_BASE
 118 };
 119
 120 // wxSystemSettings::GetSystemColour() helper: get the colours from a GTK+
 121 // widget style, return true if we did get them, false to use defaults
 122 static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
 123                                    wxGtkWidgetType type = wxGTK_BUTTON,
 124                                    GtkStateType state = GTK_STATE_NORMAL,
 125                                    wxGtkColourType colour = wxGTK_BG)
 126 {
 127     GtkWidget *widget;
 128     switch ( type )
 129     {
 130         default:
 131             wxFAIL_MSG( _T("unexpected GTK widget type") );
 132             // fall through
 133
 134         case wxGTK_BUTTON:
 135             widget = gtk_button_new();
 136             break;
 137
 138         case wxGTK_LIST:
 139             widget = gtk_list_new();
 140     }
 141
 142     GtkStyle *def = gtk_rc_get_style( widget );
 143     if ( !def )
 144         def = gtk_widget_get_default_style();
 145
 146     bool ok;
 147     if ( def )
 148     {
 149         GdkColor *col;
 150         switch ( colour )
 151         {
 152             default:
 153                 wxFAIL_MSG( _T("unexpected GTK colour type") );
 154                 // fall through
 155
 156             case wxGTK_FG:
 157                 col = def->fg;
 158                 break;
 159
 160             case wxGTK_BG:
 161                 col = def->bg;
 162                 break;
 163
 164             case wxGTK_BASE:
 165                 col = def->base;
 166                 break;
 167         }
 168
 169         red = col[state].red;
 170         green = col[state].green;
 171         blue = col[state].blue;
 172
 173         ok = TRUE;
 174     }
 175     else
 176     {
 177         ok = FALSE;
 178     }
 179
 180     gtk_widget_destroy( widget );
 181
 182     return ok;
 183 }
 184
 185 wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
 186 {
 187     switch (index)
 188     {
 189         case wxSYS_COLOUR_SCROLLBAR:
 190         case wxSYS_COLOUR_BACKGROUND:
 191         case wxSYS_COLOUR_ACTIVECAPTION:
 192         case wxSYS_COLOUR_INACTIVECAPTION:
 193         case wxSYS_COLOUR_MENU:
 194         case wxSYS_COLOUR_WINDOWFRAME:
 195         case wxSYS_COLOUR_ACTIVEBORDER:
 196         case wxSYS_COLOUR_INACTIVEBORDER:
 197         case wxSYS_COLOUR_BTNFACE:
 198         case wxSYS_COLOUR_3DLIGHT:
 199             if (!g_systemBtnFaceColour)
 200             {
 201                 int red, green, blue;
 202                 if ( !GetColourFromGTKWidget(red, green, blue) )
 203                 {
 204                     red =
 205                     green = 0;
 206                     blue = 0x9c40;
 207                 }
 208
 209                 g_systemBtnFaceColour = new wxColour( red   >> SHIFT,
 210                                                       green >> SHIFT,
 211                                                       blue  >> SHIFT );
 212             }
 213             return *g_systemBtnFaceColour;
 214
 215         case wxSYS_COLOUR_WINDOW:
 216             return *wxWHITE;
 217
 218         case wxSYS_COLOUR_3DDKSHADOW:
 219             return *wxBLACK;
 220
 221         case wxSYS_COLOUR_GRAYTEXT:
 222         case wxSYS_COLOUR_BTNSHADOW:
 223         //case wxSYS_COLOUR_3DSHADOW:
 224             if (!g_systemBtnShadowColour)
 225             {
 226                 wxColour faceColour(GetSystemColour(wxSYS_COLOUR_3DFACE));
 227                 g_systemBtnShadowColour =
 228                    new wxColour((unsigned char) (faceColour.Red() * 0.666),
 229                                 (unsigned char) (faceColour.Green() * 0.666),
 230                                 (unsigned char) (faceColour.Blue() * 0.666));
 231             }
 232
 233             return *g_systemBtnShadowColour;
 234
 235         case wxSYS_COLOUR_3DHIGHLIGHT:
 236         //case wxSYS_COLOUR_BTNHIGHLIGHT:
 237             return * wxWHITE;
 238 /* I think this should normally be white (JACS 8/2000)
 239
 240    Hmm, I'm quite sure it shouldn't ... (VZ 20.08.01)
 241             if (!g_systemBtnHighlightColour)
 242             {
 243                 g_systemBtnHighlightColour =
 244                     new wxColour( 0xea60 >> SHIFT,
 245                                   0xea60 >> SHIFT,
 246                                   0xea60 >> SHIFT );
 247             }
 248             return *g_systemBtnHighlightColour;
 249 */
 250
 251         case wxSYS_COLOUR_HIGHLIGHT:
 252             if (!g_systemHighlightColour)
 253             {
 254                 int red, green, blue;
 255                 if ( !GetColourFromGTKWidget(red, green, blue,
 256                                              wxGTK_BUTTON,
 257                                              GTK_STATE_SELECTED) )
 258                 {
 259                     red =
 260                     green = 0;
 261                     blue = 0x9c40;
 262                 }
 263
 264                 g_systemHighlightColour = new wxColour( red   >> SHIFT,
 265                                                         green >> SHIFT,
 266                                                         blue  >> SHIFT );
 267             }
 268             return *g_systemHighlightColour;
 269
 270         case wxSYS_COLOUR_LISTBOX:
 271             if (!g_systemListBoxColour)
 272             {
 273                 int red, green, blue;
 274                 if ( GetColourFromGTKWidget(red, green, blue,
 275                                             wxGTK_LIST,
 276                                             GTK_STATE_NORMAL,
 277                                             wxGTK_BASE) )
 278                 {
 279                     g_systemListBoxColour = new wxColour( red   >> SHIFT,
 280                                                           green >> SHIFT,
 281                                                           blue  >> SHIFT );
 282                 }
 283                 else
 284                 {
 285                     g_systemListBoxColour = new wxColour(*wxWHITE);
 286                 }
 287             }
 288             return *g_systemListBoxColour;
 289
 290         case wxSYS_COLOUR_MENUTEXT:
 291         case wxSYS_COLOUR_WINDOWTEXT:
 292         case wxSYS_COLOUR_CAPTIONTEXT:
 293         case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
 294         case wxSYS_COLOUR_BTNTEXT:
 295         case wxSYS_COLOUR_INFOTEXT:
 296             if (!g_systemBtnTextColour)
 297             {
 298                 int red, green, blue;
 299                 if ( !GetColourFromGTKWidget(red, green, blue,
 300                                              wxGTK_BUTTON,
 301                                              GTK_STATE_NORMAL,
 302                                              wxGTK_FG) )
 303                 {
 304                     red =
 305                     green =
 306                     blue = 0;
 307                 }
 308
 309                 g_systemBtnTextColour = new wxColour( red   >> SHIFT,
 310                                                       green >> SHIFT,
 311                                                       blue  >> SHIFT );
 312             }
 313             return *g_systemBtnTextColour;
 314
 315         case wxSYS_COLOUR_HIGHLIGHTTEXT:
 316             if (!g_systemHighlightTextColour)
 317             {
 318                 wxColour hclr = GetSystemColour(wxSYS_COLOUR_HIGHLIGHT);
 319                 if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
 320                     g_systemHighlightTextColour = new wxColour(*wxBLACK);
 321                 else
 322                     g_systemHighlightTextColour = new wxColour(*wxWHITE);
 323             }
 324             return *g_systemHighlightTextColour;
 325
 326         case wxSYS_COLOUR_INFOBK:
 327         case wxSYS_COLOUR_APPWORKSPACE:
 328             return *wxWHITE;    // ?
 329   }
 330
 331   return *wxWHITE;
 332 }
 333
 334 wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
 335 {
 336     switch (index)
 337     {
 338         case wxSYS_OEM_FIXED_FONT:
 339         case wxSYS_ANSI_FIXED_FONT:
 340         case wxSYS_SYSTEM_FIXED_FONT:
 341         {
 342             return *wxNORMAL_FONT;
 343         }
 344         case wxSYS_ANSI_VAR_FONT:
 345         case wxSYS_SYSTEM_FONT:
 346         case wxSYS_DEVICE_DEFAULT_FONT:
 347         case wxSYS_DEFAULT_GUI_FONT:
 348         {
 349             if (!g_systemFont)
 350             {
 351 #if 0
 352                 GdkFont *gdk_font = GtkGetDefaultGuiFont();
 353                 if (gdk_font)
 354                 {
 355                     GSList *font_list = ((GdkFontPrivate*)gdk_font)->names;
 356                     char *name = (char*)font_list->data;
 357                     wxString font_string( name );
 358                     wxFontData font_data;
 359                     g_systemFont = new wxFont( font_string, font_data );
 360                 }
 361                 gtk_widget_destroy( widget );
 362 #endif
 363
 364                 g_systemFont = new wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
 365
 366             }
 367             return *g_systemFont;
 368         }
 369
 370         default:
 371             return wxNullFont;
 372     }
 373 }
 374
 375 int wxSystemSettingsNative::GetMetric( wxSystemMetric index )
 376 {
 377     switch (index)
 378     {
 379         case wxSYS_SCREEN_X:   return gdk_screen_width();
 380         case wxSYS_SCREEN_Y:   return gdk_screen_height();
 381         case wxSYS_HSCROLL_Y:  return 15;
 382         case wxSYS_VSCROLL_X:  return 15;
 383         default:
 384             wxFAIL_MSG( wxT("wxSystemSettings::GetMetric not fully implemented") );
 385             return 0;
 386     }
 387 }
 388
 389 bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
 390 {
 391     switch (index)
 392     {
 393         case wxSYS_CAN_ICONIZE_FRAME:
 394             return FALSE;
 395             break;
 396         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 397             return TRUE;
 398             break;
 399         default:
 400             return FALSE;
 401     }
 402 }