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[wxWidgets.git] / src / gtk1 / settings.cpp
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c801d85f 1/////////////////////////////////////////////////////////////////////////////
3523b9cf 2// Name: gtk/settings.cpp
c801d85f
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3// Purpose:
4// Author: Robert Roebling
9b0b5ba7 5// Modified by: Mart Raudsepp (GetMetric)
f96aa4d9
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6// Id: $Id$
7// Copyright: (c) 1998 Robert Roebling
65571936 8// Licence: wxWindows licence
c801d85f
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9/////////////////////////////////////////////////////////////////////////////
10
11
14f355c2 12#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
c801d85f
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13#pragma implementation "settings.h"
14#endif
15
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16// For compilers that support precompilation, includes "wx.h".
17#include "wx/wxprec.h"
18
c801d85f 19#include "wx/settings.h"
1ecc4d80 20#include "wx/debug.h"
d06b34a7 21#include "wx/cmndata.h"
2b5f62a0 22#include "wx/fontutil.h"
9b0b5ba7 23#include "wx/toplevel.h"
d06b34a7 24
aed8ac3f 25#include <gdk/gdk.h>
9b0b5ba7 26#include <gdk/gdkx.h>
d06b34a7 27#include <gdk/gdkprivate.h>
aed8ac3f 28#include <gtk/gtk.h>
83624f79 29
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30#include <X11/Xatom.h>
31
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32#define SHIFT (8*(sizeof(short int)-sizeof(char)))
33
0ab5e0e8 34// ----------------------------------------------------------------------------
94a09ea5 35// wxSystemObjects
0ab5e0e8
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36// ----------------------------------------------------------------------------
37
94a09ea5 38struct wxSystemObjects
1ecc4d80 39{
c1ef87c3
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40 wxColour m_colBtnFace,
41 m_colBtnShadow,
42 m_colBtnHighlight,
43 m_colHighlight,
44 m_colHighlightText,
45 m_colListBox,
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46 m_colBtnText,
47 m_colMenuItemHighlight;
c1ef87c3
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48
49 wxFont m_fontSystem;
0ab5e0e8
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50};
51
94a09ea5 52static wxSystemObjects gs_objects;
c1ef87c3 53
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54// ----------------------------------------------------------------------------
55// wxSystemSettings implementation
56// ----------------------------------------------------------------------------
a3622daa 57
643ccf62 58// kind of widget to use in GetColourFromGTKWidget
dbcbe229 59enum wxGtkWidgetType
643ccf62 60{
dbcbe229 61 wxGTK_BUTTON,
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62 wxGTK_LIST,
63 wxGTK_MENUITEM
dbcbe229
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64};
65
66// the colour we need
67enum wxGtkColourType
68{
69 wxGTK_FG,
70 wxGTK_BG,
71 wxGTK_BASE
643ccf62
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72};
73
984152a6 74// wxSystemSettings::GetColour() helper: get the colours from a GTK+
643ccf62 75// widget style, return true if we did get them, false to use defaults
dbcbe229
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76static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
77 wxGtkWidgetType type = wxGTK_BUTTON,
78 GtkStateType state = GTK_STATE_NORMAL,
79 wxGtkColourType colour = wxGTK_BG)
643ccf62 80{
dbcbe229
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81 GtkWidget *widget;
82 switch ( type )
83 {
84 default:
85 wxFAIL_MSG( _T("unexpected GTK widget type") );
86 // fall through
87
88 case wxGTK_BUTTON:
89 widget = gtk_button_new();
90 break;
91
92 case wxGTK_LIST:
93 widget = gtk_list_new();
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94
95 case wxGTK_MENUITEM:
96 widget = gtk_menu_item_new();
dbcbe229
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97 }
98
643ccf62
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99 GtkStyle *def = gtk_rc_get_style( widget );
100 if ( !def )
101 def = gtk_widget_get_default_style();
102
103 bool ok;
104 if ( def )
105 {
dbcbe229
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106 GdkColor *col;
107 switch ( colour )
108 {
109 default:
110 wxFAIL_MSG( _T("unexpected GTK colour type") );
111 // fall through
112
113 case wxGTK_FG:
114 col = def->fg;
115 break;
116
117 case wxGTK_BG:
118 col = def->bg;
119 break;
120
121 case wxGTK_BASE:
122 col = def->base;
123 break;
124 }
125
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126 red = col[state].red;
127 green = col[state].green;
128 blue = col[state].blue;
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129
130 ok = TRUE;
131 }
132 else
133 {
134 ok = FALSE;
135 }
136
137 gtk_widget_destroy( widget );
138
139 return ok;
140}
141
0ab5e0e8 142wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
c801d85f 143{
db434467 144 switch (index)
c801d85f 145 {
db434467
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146 case wxSYS_COLOUR_SCROLLBAR:
147 case wxSYS_COLOUR_BACKGROUND:
db434467
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148 case wxSYS_COLOUR_INACTIVECAPTION:
149 case wxSYS_COLOUR_MENU:
150 case wxSYS_COLOUR_WINDOWFRAME:
151 case wxSYS_COLOUR_ACTIVEBORDER:
152 case wxSYS_COLOUR_INACTIVEBORDER:
153 case wxSYS_COLOUR_BTNFACE:
221ed576 154 case wxSYS_COLOUR_MENUBAR:
5b211fbf 155 case wxSYS_COLOUR_3DLIGHT:
94a09ea5 156 if (!gs_objects.m_colBtnFace.Ok())
37d403aa 157 {
643ccf62 158 int red, green, blue;
dbcbe229 159 if ( !GetColourFromGTKWidget(red, green, blue) )
37d403aa 160 {
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161 red =
162 green = 0;
163 blue = 0x9c40;
37d403aa 164 }
37d403aa 165
94a09ea5 166 gs_objects.m_colBtnFace = wxColour( red >> SHIFT,
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167 green >> SHIFT,
168 blue >> SHIFT );
37d403aa 169 }
94a09ea5 170 return gs_objects.m_colBtnFace;
643ccf62 171
db434467 172 case wxSYS_COLOUR_WINDOW:
db434467 173 return *wxWHITE;
643ccf62 174
37d403aa 175 case wxSYS_COLOUR_3DDKSHADOW:
37d403aa 176 return *wxBLACK;
643ccf62 177
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178 case wxSYS_COLOUR_GRAYTEXT:
179 case wxSYS_COLOUR_BTNSHADOW:
37d403aa 180 //case wxSYS_COLOUR_3DSHADOW:
94a09ea5 181 if (!gs_objects.m_colBtnShadow.Ok())
37d403aa 182 {
984152a6 183 wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
94a09ea5 184 gs_objects.m_colBtnShadow =
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185 wxColour((unsigned char) (faceColour.Red() * 0.666),
186 (unsigned char) (faceColour.Green() * 0.666),
187 (unsigned char) (faceColour.Blue() * 0.666));
db434467 188 }
643ccf62 189
94a09ea5 190 return gs_objects.m_colBtnShadow;
643ccf62 191
37d403aa
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192 case wxSYS_COLOUR_3DHIGHLIGHT:
193 //case wxSYS_COLOUR_BTNHIGHLIGHT:
37d403aa 194 return * wxWHITE;
643ccf62 195
db434467 196 case wxSYS_COLOUR_HIGHLIGHT:
94a09ea5 197 if (!gs_objects.m_colHighlight.Ok())
db434467 198 {
643ccf62 199 int red, green, blue;
dbcbe229
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200 if ( !GetColourFromGTKWidget(red, green, blue,
201 wxGTK_BUTTON,
202 GTK_STATE_SELECTED) )
e6527f9d 203 {
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204 red =
205 green = 0;
206 blue = 0x9c40;
e6527f9d 207 }
db434467 208
94a09ea5 209 gs_objects.m_colHighlight = wxColour( red >> SHIFT,
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210 green >> SHIFT,
211 blue >> SHIFT );
db434467 212 }
94a09ea5 213 return gs_objects.m_colHighlight;
643ccf62 214
74f55195 215 case wxSYS_COLOUR_LISTBOX:
94a09ea5 216 if (!gs_objects.m_colListBox.Ok())
74f55195 217 {
643ccf62 218 int red, green, blue;
dbcbe229
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219 if ( GetColourFromGTKWidget(red, green, blue,
220 wxGTK_LIST,
221 GTK_STATE_NORMAL,
222 wxGTK_BASE) )
74f55195 223 {
94a09ea5 224 gs_objects.m_colListBox = wxColour( red >> SHIFT,
643ccf62
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225 green >> SHIFT,
226 blue >> SHIFT );
74f55195
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227 }
228 else
643ccf62 229 {
94a09ea5 230 gs_objects.m_colListBox = wxColour(*wxWHITE);
643ccf62 231 }
74f55195 232 }
94a09ea5 233 return gs_objects.m_colListBox;
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234
235 case wxSYS_COLOUR_MENUTEXT:
236 case wxSYS_COLOUR_WINDOWTEXT:
237 case wxSYS_COLOUR_CAPTIONTEXT:
238 case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
239 case wxSYS_COLOUR_BTNTEXT:
240 case wxSYS_COLOUR_INFOTEXT:
94a09ea5 241 if (!gs_objects.m_colBtnText.Ok())
37d403aa 242 {
dbcbe229
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243 int red, green, blue;
244 if ( !GetColourFromGTKWidget(red, green, blue,
245 wxGTK_BUTTON,
246 GTK_STATE_NORMAL,
247 wxGTK_FG) )
37d403aa 248 {
dbcbe229
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249 red =
250 green =
251 blue = 0;
37d403aa 252 }
dbcbe229 253
94a09ea5 254 gs_objects.m_colBtnText = wxColour( red >> SHIFT,
dbcbe229
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255 green >> SHIFT,
256 blue >> SHIFT );
37d403aa 257 }
94a09ea5 258 return gs_objects.m_colBtnText;
643ccf62 259
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260 // this (as well as wxSYS_COLOUR_INFOTEXT above) is used for
261 // tooltip windows - Robert, please change this code to use the
262 // real GTK tooltips when/if you can (TODO)
263 case wxSYS_COLOUR_INFOBK:
264 return wxColour(255, 255, 225);
265
643ccf62 266 case wxSYS_COLOUR_HIGHLIGHTTEXT:
94a09ea5 267 if (!gs_objects.m_colHighlightText.Ok())
643ccf62 268 {
984152a6 269 wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
643ccf62 270 if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
94a09ea5 271 gs_objects.m_colHighlightText = wxColour(*wxBLACK);
643ccf62 272 else
94a09ea5 273 gs_objects.m_colHighlightText = wxColour(*wxWHITE);
643ccf62 274 }
94a09ea5 275 return gs_objects.m_colHighlightText;
643ccf62 276
643ccf62
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277 case wxSYS_COLOUR_APPWORKSPACE:
278 return *wxWHITE; // ?
221ed576 279
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280 case wxSYS_COLOUR_ACTIVECAPTION:
281 case wxSYS_COLOUR_MENUHILIGHT:
282 if (!gs_objects.m_colMenuItemHighlight.Ok())
283 {
284 int red, green, blue;
285 if ( !GetColourFromGTKWidget(red, green, blue,
286 wxGTK_MENUITEM,
287 GTK_STATE_SELECTED,
288 wxGTK_BG) )
289 {
290 red =
291 green =
292 blue = 0;
293 }
294
295 gs_objects.m_colMenuItemHighlight = wxColour( red >> SHIFT,
296 green >> SHIFT,
297 blue >> SHIFT );
298 }
299 return gs_objects.m_colMenuItemHighlight;
300
221ed576
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301 case wxSYS_COLOUR_HOTLIGHT:
302 case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
303 case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
221ed576
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304 // TODO
305 return *wxBLACK;
306
307 case wxSYS_COLOUR_MAX:
308 default:
309 wxFAIL_MSG( _T("unknown system colour index") );
ff7b1510 310 }
643ccf62 311
c801d85f 312 return *wxWHITE;
ff7b1510 313}
c801d85f 314
0ab5e0e8 315wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
c801d85f 316{
2d17d68f 317 switch (index)
c801d85f 318 {
2d17d68f
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319 case wxSYS_OEM_FIXED_FONT:
320 case wxSYS_ANSI_FIXED_FONT:
321 case wxSYS_SYSTEM_FIXED_FONT:
322 {
323 return *wxNORMAL_FONT;
324 }
325 case wxSYS_ANSI_VAR_FONT:
326 case wxSYS_SYSTEM_FONT:
327 case wxSYS_DEVICE_DEFAULT_FONT:
328 case wxSYS_DEFAULT_GUI_FONT:
329 {
94a09ea5 330 if (!gs_objects.m_fontSystem.Ok())
d06b34a7 331 {
2b5f62a0 332#ifdef __WXGTK20__
e7370dac
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333 GtkWidget *widget = gtk_button_new();
334 GtkStyle *def = gtk_rc_get_style( widget );
2269ff56 335 if ( !def || !def->font_desc )
e7370dac 336 def = gtk_widget_get_default_style();
2269ff56 337 if ( def && def->font_desc )
e7370dac
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338 {
339 wxNativeFontInfo info;
fdf7514a
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340 info.description =
341 pango_font_description_copy(def->font_desc);
94a09ea5 342 gs_objects.m_fontSystem = wxFont(info);
e7370dac
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343 }
344 else
345 {
119cd341
RR
346 GtkSettings *settings = gtk_settings_get_default();
347 gchar *font_name = NULL;
348 g_object_get ( settings,
349 "gtk-font-name",
350 &font_name,
351 NULL);
352 if (!font_name)
353 gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
354 else
355 gs_objects.m_fontSystem = wxFont(wxString::FromAscii(font_name));
356 g_free (font_name);
e7370dac
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357 }
358 gtk_widget_destroy( widget );
2b5f62a0 359#else
94a09ea5 360 gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
2b5f62a0 361#endif
d06b34a7 362 }
94a09ea5 363 return gs_objects.m_fontSystem;
2d17d68f 364 }
c801d85f 365
0ab5e0e8
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366 default:
367 return wxNullFont;
368 }
c801d85f 369}
c801d85f 370
9b0b5ba7 371int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
c801d85f 372{
9b0b5ba7 373#ifdef __WXGTK20__
5ac8ce9e
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374 bool success = false;
375
9b0b5ba7
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376 guchar *data = NULL;
377 GdkWindow *window = NULL;
378 if(win && GTK_WIDGET_REALIZED(win->GetHandle()))
379 window = win->GetHandle()->window;
380#endif
381
1ecc4d80
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382 switch (index)
383 {
8e27732a 384#ifdef __WXGTK20__
9b0b5ba7
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385 case wxSYS_BORDER_X:
386 case wxSYS_BORDER_Y:
387 case wxSYS_EDGE_X:
388 case wxSYS_EDGE_Y:
389 case wxSYS_FRAMESIZE_X:
390 case wxSYS_FRAMESIZE_Y:
391 // If a window is specified/realized, and it is a toplevel window, we can query from wm.
392 // The returned border thickness is outside the client area in that case.
393 if (window)
394 {
395 wxTopLevelWindow *tlw = wxDynamicCast(win, wxTopLevelWindow);
396 if (!tlw)
397 return -1; // not a tlw, not sure how to approach
398 else
399 {
400 // Check if wm supports frame extents - we can't know
401 // the border widths if it does not.
402#if GTK_CHECK_VERSION(2,2,0)
403 if (!gtk_check_version(2,2,0))
404 {
405 if (!gdk_x11_screen_supports_net_wm_hint(
406 gdk_drawable_get_screen(window),
407 gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
408 return -1;
409 }
410 else
411#endif
412 {
413 if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
414 return -1;
415 }
416
417 // Get the frame extents from the windowmanager.
418 // In most cases the top extent is the titlebar, so we use the bottom extent
419 // for the heights.
420
421 Atom type;
422 gint format;
423 gulong nitems;
5ac8ce9e
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424
425#if GTK_CHECK_VERSION(2,2,0)
426 if (!gtk_check_version(2,2,0))
427 {
428 gulong bytes_after;
429 success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
9b0b5ba7
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430 GDK_WINDOW_XWINDOW(window),
431 gdk_x11_get_xatom_by_name_for_display (
432 gdk_drawable_get_display(window),
433 "_NET_FRAME_EXTENTS" ),
434 0, // left, right, top, bottom, CARDINAL[4]/32
435 G_MAXLONG, // size of long
436 false, // do not delete property
437 XA_CARDINAL, // 32 bit
438 &type, &format, &nitems, &bytes_after, &data
5ac8ce9e
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439 ) == Success);
440 }
441#endif
442 if (success)
9b0b5ba7
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443 {
444 int border_return = -1;
445
446 if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 4) && (data))
447 {
448 long *borders;
449 borders = (long*)data;
450 switch(index)
451 {
452 case wxSYS_BORDER_X:
453 case wxSYS_EDGE_X:
454 case wxSYS_FRAMESIZE_X:
455 border_return = borders[1]; // width of right extent
456 break;
457 default:
458 border_return = borders[3]; // height of bottom extent
459 break;
460 }
461 }
462
463 if (data)
464 XFree(data);
465
466 return border_return;
467 }
468 }
469 }
470
471 return -1; // no window specified
8e27732a 472#endif // gtk2
9b0b5ba7
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473
474 case wxSYS_CURSOR_X:
475 case wxSYS_CURSOR_Y:
476#ifdef __WXGTK24__
477 if (!gtk_check_version(2,4,0))
478 {
479 if (window)
480 return gdk_display_get_default_cursor_size(gdk_drawable_get_display(window));
481 else
482 return gdk_display_get_default_cursor_size(gdk_display_get_default());
483 }
484 else
485#endif
486 return 16;
17d61cbf 487
9b0b5ba7 488#ifdef __WXGTK20__
44fd6f72
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489 case wxSYS_DCLICK_X:
490 case wxSYS_DCLICK_Y:
491 gint dclick_distance;
9b0b5ba7
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492#if GTK_CHECK_VERSION(2,2,0)
493 if (window && !gtk_check_version(2,2,0))
494 g_object_get(gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
495 "gtk-double-click-distance", &dclick_distance, NULL);
496 else
44fd6f72 497#endif
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498 g_object_get(gtk_settings_get_default(),
499 "gtk-double-click-distance", &dclick_distance, NULL);
500
501 return dclick_distance * 2;
502#endif // gtk2
44fd6f72 503
9b0b5ba7 504#ifdef __WXGTK20__
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505 case wxSYS_DRAG_X:
506 case wxSYS_DRAG_Y:
507 gint drag_threshold;
9b0b5ba7
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508#if GTK_CHECK_VERSION(2,2,0)
509 if (window && !gtk_check_version(2,2,0))
510 {
511 g_object_get(
512 gtk_settings_get_for_screen(gdk_drawable_get_screen(window)),
513 "gtk-dnd-drag-threshold",
514 &drag_threshold, NULL);
515 }
516 else
44fd6f72 517#endif
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518 {
519 g_object_get(gtk_settings_get_default(),
520 "gtk-dnd-drag-threshold", &drag_threshold, NULL);
521 }
44fd6f72 522
9b0b5ba7 523 return drag_threshold * 2;
44fd6f72 524#endif
9b0b5ba7 525
f618020a
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526 // MBN: ditto for icons
527 case wxSYS_ICON_X: return 32;
528 case wxSYS_ICON_Y: return 32;
9b0b5ba7
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529
530 case wxSYS_SCREEN_X:
531#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
532 if (window && !gtk_check_version(2,2,0))
533 return gdk_screen_get_width(gdk_drawable_get_screen(window));
534 else
535#endif
536 return gdk_screen_width();
537
538 case wxSYS_SCREEN_Y:
539#if defined(__WXGTK20__) && GTK_CHECK_VERSION(2,2,0)
540 if (window && !gtk_check_version(2,2,0))
541 return gdk_screen_get_height(gdk_drawable_get_screen(window));
542 else
543#endif
544 return gdk_screen_height();
545
546 case wxSYS_HSCROLL_Y: return 15;
547 case wxSYS_VSCROLL_X: return 15;
548
549// a gtk1 implementation should be possible too if gtk2 efficiency/convenience functions aren't used
550#ifdef __WXGTK20__
551 case wxSYS_CAPTION_Y:
552 if (!window)
553 // No realized window specified, and no implementation for that case yet.
554 return -1;
555
556 // Check if wm supports frame extents - we can't know the caption height if it does not.
557#if GTK_CHECK_VERSION(2,2,0)
558 if (!gtk_check_version(2,2,0))
559 {
560 if (!gdk_x11_screen_supports_net_wm_hint(
561 gdk_drawable_get_screen(window),
562 gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
563 return -1;
564 }
565 else
566#endif
567 {
568 if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
569 return -1;
570 }
571
572 wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
573 wxT("Asking for caption height of a non toplevel window") );
574
575 // Get the height of the top windowmanager border.
576 // This is the titlebar in most cases. The titlebar might be elsewhere, and
577 // we could check which is the thickest wm border to decide on which side the
578 // titlebar is, but this might lead to interesting behaviours in used code.
579 // Reconsider when we have a way to report to the user on which side it is.
580
581 Atom type;
582 gint format;
583 gulong nitems;
9b0b5ba7 584
5ac8ce9e
RR
585#if GTK_CHECK_VERSION(2,2,0)
586 if (!gtk_check_version(2,2,0))
587 {
588 gulong bytes_after;
589 success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
9b0b5ba7
RR
590 GDK_WINDOW_XWINDOW(window),
591 gdk_x11_get_xatom_by_name_for_display (
592 gdk_drawable_get_display(window),
593 "_NET_FRAME_EXTENTS" ),
594 0, // left, right, top, bottom, CARDINAL[4]/32
595 G_MAXLONG, // size of long
596 false, // do not delete property
597 XA_CARDINAL, // 32 bit
598 &type, &format, &nitems, &bytes_after, &data
5ac8ce9e
RR
599 ) == Success);
600 }
601#endif
602 if (success)
9b0b5ba7
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603 {
604 int caption_height = -1;
605
606 if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
607 {
608 long *borders;
609 borders = (long*)data;
610 caption_height = borders[2]; // top frame extent
611 }
612
613 if (data)
614 XFree(data);
615
616 return caption_height;
617 }
618
619 // Try a default approach without a window pointer, if possible
620 // ...
621
622 return -1;
623#endif // gtk2
624
625 case wxSYS_PENWINDOWS_PRESENT:
626 // No MS Windows for Pen computing extension available in X11 based gtk+.
627 return 0;
628
629 default:
1d451c5b 630 return -1; // metric is unknown
1ecc4d80 631 }
c67daf87 632}
253293c1 633
0ab5e0e8 634bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
253293c1
VS
635{
636 switch (index)
637 {
638 case wxSYS_CAN_ICONIZE_FRAME:
0ab5e0e8
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639 return FALSE;
640 break;
253293c1 641 case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
0ab5e0e8
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642 return TRUE;
643 break;
253293c1
VS
644 default:
645 return FALSE;
646 }
647}