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