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 GtkWidgetType
  91 {
  92     GTK_BUTTON,
  93     GTK_LIST
  94 };
  95
  96 // wxSystemSettings::GetSystemColour() helper: get the colours from a GTK+
  97 // widget style, return true if we did get them, false to use defaults
  98 static bool GetColourFromGTKWidget(GtkWidgetType type, GtkStateType state,
  99                                    int& red, int& green, int& blue)
 100 {
 101     GtkWidget *widget = type == GTK_BUTTON ? gtk_button_new() : gtk_list_new();
 102     GtkStyle *def = gtk_rc_get_style( widget );
 103     if ( !def )
 104         def = gtk_widget_get_default_style();
 105
 106     bool ok;
 107     if ( def )
 108     {
 109         // ok, it's a hack: we really should have different functions to
 110         // access GtkStyle::bg and ::base but as we only use base for listbox
 111         // for now, this code works too
 112         GdkColor *col = type == GTK_BUTTON ? def->bg : def->base;
 113         red = col[state].red;
 114         green = col[state].green;
 115         blue = col[state].blue;
 116
 117         ok = TRUE;
 118     }
 119     else
 120     {
 121         ok = FALSE;
 122     }
 123
 124     gtk_widget_destroy( widget );
 125
 126     return ok;
 127 }
 128
 129 wxColour wxSystemSettings::GetSystemColour( int index )
 130 {
 131     switch (index)
 132     {
 133         case wxSYS_COLOUR_SCROLLBAR:
 134         case wxSYS_COLOUR_BACKGROUND:
 135         case wxSYS_COLOUR_ACTIVECAPTION:
 136         case wxSYS_COLOUR_INACTIVECAPTION:
 137         case wxSYS_COLOUR_MENU:
 138         case wxSYS_COLOUR_WINDOWFRAME:
 139         case wxSYS_COLOUR_ACTIVEBORDER:
 140         case wxSYS_COLOUR_INACTIVEBORDER:
 141         case wxSYS_COLOUR_BTNFACE:
 142         case wxSYS_COLOUR_3DLIGHT:
 143             if (!g_systemBtnFaceColour)
 144             {
 145                 int red, green, blue;
 146                 if ( !GetColourFromGTKWidget(GTK_BUTTON, GTK_STATE_NORMAL,
 147                                              red, green, blue) )
 148                 {
 149                     red =
 150                     green = 0;
 151                     blue = 0x9c40;
 152                 }
 153
 154                 g_systemBtnFaceColour = new wxColour( red   >> SHIFT,
 155                                                       green >> SHIFT,
 156                                                       blue  >> SHIFT );
 157             }
 158             return *g_systemBtnFaceColour;
 159
 160         case wxSYS_COLOUR_WINDOW:
 161             return *wxWHITE;
 162
 163         case wxSYS_COLOUR_3DDKSHADOW:
 164             return *wxBLACK;
 165
 166         case wxSYS_COLOUR_GRAYTEXT:
 167         case wxSYS_COLOUR_BTNSHADOW:
 168         //case wxSYS_COLOUR_3DSHADOW:
 169             if (!g_systemBtnShadowColour)
 170             {
 171                 wxColour faceColour(GetSystemColour(wxSYS_COLOUR_3DFACE));
 172                 g_systemBtnShadowColour =
 173                    new wxColour((unsigned char) (faceColour.Red() * 0.666),
 174                                 (unsigned char) (faceColour.Green() * 0.666),
 175                                 (unsigned char) (faceColour.Blue() * 0.666));
 176             }
 177
 178             return *g_systemBtnShadowColour;
 179
 180         case wxSYS_COLOUR_3DHIGHLIGHT:
 181         //case wxSYS_COLOUR_BTNHIGHLIGHT:
 182             return * wxWHITE;
 183 /* I think this should normally be white (JACS 8/2000)
 184
 185    Hmm, I'm quite sure it shouldn't ... (VZ 20.08.01)
 186             if (!g_systemBtnHighlightColour)
 187             {
 188                 g_systemBtnHighlightColour =
 189                     new wxColour( 0xea60 >> SHIFT,
 190                                   0xea60 >> SHIFT,
 191                                   0xea60 >> SHIFT );
 192             }
 193             return *g_systemBtnHighlightColour;
 194 */
 195
 196         case wxSYS_COLOUR_HIGHLIGHT:
 197             if (!g_systemHighlightColour)
 198             {
 199                 int red, green, blue;
 200                 if ( !GetColourFromGTKWidget(GTK_BUTTON, GTK_STATE_SELECTED,
 201                                              red, green, blue) )
 202                 {
 203                     red =
 204                     green = 0;
 205                     blue = 0x9c40;
 206                 }
 207
 208                 g_systemHighlightColour = new wxColour( red   >> SHIFT,
 209                                                         green >> SHIFT,
 210                                                         blue  >> SHIFT );
 211             }
 212             return *g_systemHighlightColour;
 213
 214         case wxSYS_COLOUR_LISTBOX:
 215             if (!g_systemListBoxColour)
 216             {
 217                 int red, green, blue;
 218                 if ( GetColourFromGTKWidget(GTK_LIST, GTK_STATE_NORMAL,
 219                                             red, green, blue) )
 220                 {
 221                     g_systemListBoxColour = new wxColour( red   >> SHIFT,
 222                                                           green >> SHIFT,
 223                                                           blue  >> SHIFT );
 224                 }
 225                 else
 226                 {
 227                     g_systemListBoxColour = new wxColour(*wxWHITE);
 228                 }
 229             }
 230             return *g_systemListBoxColour;
 231
 232         case wxSYS_COLOUR_MENUTEXT:
 233         case wxSYS_COLOUR_WINDOWTEXT:
 234         case wxSYS_COLOUR_CAPTIONTEXT:
 235         case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
 236         case wxSYS_COLOUR_BTNTEXT:
 237         case wxSYS_COLOUR_INFOTEXT:
 238             if (!g_systemBtnTextColour)
 239             {
 240                 GtkWidget *widget = gtk_button_new();
 241                 GtkStyle *def = gtk_rc_get_style( widget );
 242                 if (!def)
 243                     def = gtk_widget_get_default_style();
 244                 if (def)
 245                 {
 246                     int red = def->fg[GTK_STATE_NORMAL].red;
 247                     int green = def->fg[GTK_STATE_NORMAL].green;
 248                     int blue = def->fg[GTK_STATE_NORMAL].blue;
 249                     g_systemBtnTextColour =
 250                         new wxColour( red    >> SHIFT,
 251                                 green  >> SHIFT,
 252                                 blue   >> SHIFT );
 253                 }
 254                 else
 255                 {
 256                     g_systemBtnTextColour =
 257                         new wxColour(0, 0, 0);
 258                 }
 259                 gtk_widget_destroy( widget );
 260             }
 261             return *g_systemBtnTextColour;
 262
 263         case wxSYS_COLOUR_HIGHLIGHTTEXT:
 264             if (!g_systemHighlightTextColour)
 265             {
 266                 wxColour hclr = GetSystemColour(wxSYS_COLOUR_HIGHLIGHT);
 267                 if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
 268                     g_systemHighlightTextColour = new wxColour(*wxBLACK);
 269                 else
 270                     g_systemHighlightTextColour = new wxColour(*wxWHITE);
 271             }
 272             return *g_systemHighlightTextColour;
 273
 274         case wxSYS_COLOUR_INFOBK:
 275         case wxSYS_COLOUR_APPWORKSPACE:
 276             return *wxWHITE;    // ?
 277   }
 278
 279   return *wxWHITE;
 280 }
 281
 282 wxFont wxSystemSettings::GetSystemFont( int index )
 283 {
 284     switch (index)
 285     {
 286         case wxSYS_OEM_FIXED_FONT:
 287         case wxSYS_ANSI_FIXED_FONT:
 288         case wxSYS_SYSTEM_FIXED_FONT:
 289         {
 290             return *wxNORMAL_FONT;
 291         }
 292         case wxSYS_ANSI_VAR_FONT:
 293         case wxSYS_SYSTEM_FONT:
 294         case wxSYS_DEVICE_DEFAULT_FONT:
 295         case wxSYS_DEFAULT_GUI_FONT:
 296         {
 297             if (!g_systemFont)
 298             {
 299 #if 0
 300                 GdkFont *gdk_font = GtkGetDefaultGuiFont();
 301                 if (gdk_font)
 302                 {
 303                     GSList *font_list = ((GdkFontPrivate*)gdk_font)->names;
 304                     char *name = (char*)font_list->data;
 305                     wxString font_string( name );
 306                     wxFontData font_data;
 307                     g_systemFont = new wxFont( font_string, font_data );
 308                 }
 309                 gtk_widget_destroy( widget );
 310 #endif
 311
 312                 g_systemFont = new wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
 313
 314             }
 315             return *g_systemFont;
 316         }
 317     }
 318
 319     return wxNullFont;
 320 }
 321
 322 int wxSystemSettings::GetSystemMetric( int index )
 323 {
 324     switch (index)
 325     {
 326         case wxSYS_SCREEN_X:   return gdk_screen_width();
 327         case wxSYS_SCREEN_Y:   return gdk_screen_height();
 328         case wxSYS_HSCROLL_Y:  return 15;
 329         case wxSYS_VSCROLL_X:  return 15;
 330     }
 331
 332     wxCHECK_MSG( index, 0, wxT("wxSystemSettings::GetSystemMetric not fully implemented") );
 333
 334     return 0;
 335 }