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wxWidgets/src/gtk1/settings.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk1/settings.cpp
// Purpose:
// Author: Robert Roebling
// Modified by: Mart Raudsepp (GetMetric)
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/settings.h"
#ifndef WX_PRECOMP
#include "wx/cmndata.h"
#include "wx/toplevel.h"
#endif
#include "wx/fontutil.h"
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gdk/gdkprivate.h>
#include <gtk/gtk.h>
#include <X11/Xatom.h>
#define SHIFT (8*(sizeof(short int)-sizeof(char)))
// ----------------------------------------------------------------------------
// wxSystemObjects
// ----------------------------------------------------------------------------
struct wxSystemObjects
{
wxColour m_colBtnFace,
m_colBtnShadow,
m_colBtnHighlight,
m_colHighlight,
m_colHighlightText,
m_colListBox,
m_colBtnText,
m_colMenuItemHighlight,
m_colTooltip,
m_colTooltipText;
wxFont m_fontSystem;
};
static wxSystemObjects gs_objects;
// ----------------------------------------------------------------------------
// wxSystemSettings implementation
// ----------------------------------------------------------------------------
// kind of widget to use in GetColourFromGTKWidget
enum wxGtkWidgetType
{
wxGTK_BUTTON,
wxGTK_LIST,
wxGTK_MENUITEM
};
// the colour we need
enum wxGtkColourType
{
wxGTK_FG,
wxGTK_BG,
wxGTK_BASE
};
// wxSystemSettings::GetColour() helper: get the colours from a GTK+
// widget style, return true if we did get them, false to use defaults
static bool GetColourFromGTKWidget(int& red, int& green, int& blue,
wxGtkWidgetType type = wxGTK_BUTTON,
GtkStateType state = GTK_STATE_NORMAL,
wxGtkColourType colour = wxGTK_BG)
{
GtkWidget *widget;
switch ( type )
{
default:
wxFAIL_MSG( _T("unexpected GTK widget type") );
// fall through
case wxGTK_BUTTON:
widget = gtk_button_new();
break;
case wxGTK_LIST:
widget = gtk_list_new();
break;
case wxGTK_MENUITEM:
widget = gtk_menu_item_new();
}
GtkStyle *def = gtk_rc_get_style( widget );
if ( !def )
def = gtk_widget_get_default_style();
bool ok;
if ( def )
{
GdkColor *col;
switch ( colour )
{
default:
wxFAIL_MSG( _T("unexpected GTK colour type") );
// fall through
case wxGTK_FG:
col = def->fg;
break;
case wxGTK_BG:
col = def->bg;
break;
case wxGTK_BASE:
col = def->base;
break;
}
red = col[state].red;
green = col[state].green;
blue = col[state].blue;
ok = true;
}
else
{
ok = false;
}
gtk_widget_destroy( widget );
return ok;
}
static void GetTooltipColors()
{
GtkTooltips* tooltips = gtk_tooltips_new();
gtk_tooltips_force_window(tooltips);
gtk_widget_ensure_style(tooltips->tip_window);
GdkColor c = tooltips->tip_window->style->bg[GTK_STATE_NORMAL];
gs_objects.m_colTooltip = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
c = tooltips->tip_window->style->fg[GTK_STATE_NORMAL];
gs_objects.m_colTooltipText = wxColor(c.red >> SHIFT, c.green >> SHIFT, c.blue >> SHIFT);
gtk_object_sink(wx_reinterpret_cast(GtkObject*, tooltips));
}
wxColour wxSystemSettingsNative::GetColour( wxSystemColour index )
{
switch (index)
{
case wxSYS_COLOUR_SCROLLBAR:
case wxSYS_COLOUR_BACKGROUND:
case wxSYS_COLOUR_INACTIVECAPTION:
case wxSYS_COLOUR_MENU:
case wxSYS_COLOUR_WINDOWFRAME:
case wxSYS_COLOUR_ACTIVEBORDER:
case wxSYS_COLOUR_INACTIVEBORDER:
case wxSYS_COLOUR_BTNFACE:
case wxSYS_COLOUR_MENUBAR:
case wxSYS_COLOUR_3DLIGHT:
if (!gs_objects.m_colBtnFace.Ok())
{
int red, green, blue;
if ( !GetColourFromGTKWidget(red, green, blue) )
{
red =
green = 0;
blue = 0x9c40;
}
gs_objects.m_colBtnFace = wxColour( red >> SHIFT,
green >> SHIFT,
blue >> SHIFT );
}
return gs_objects.m_colBtnFace;
case wxSYS_COLOUR_WINDOW:
return *wxWHITE;
case wxSYS_COLOUR_3DDKSHADOW:
return *wxBLACK;
case wxSYS_COLOUR_GRAYTEXT:
case wxSYS_COLOUR_BTNSHADOW:
//case wxSYS_COLOUR_3DSHADOW:
if (!gs_objects.m_colBtnShadow.Ok())
{
wxColour faceColour(GetColour(wxSYS_COLOUR_3DFACE));
gs_objects.m_colBtnShadow =
wxColour((unsigned char) (faceColour.Red() * 0.666),
(unsigned char) (faceColour.Green() * 0.666),
(unsigned char) (faceColour.Blue() * 0.666));
}
return gs_objects.m_colBtnShadow;
case wxSYS_COLOUR_3DHIGHLIGHT:
//case wxSYS_COLOUR_BTNHIGHLIGHT:
return * wxWHITE;
case wxSYS_COLOUR_HIGHLIGHT:
if (!gs_objects.m_colHighlight.Ok())
{
int red, green, blue;
if ( !GetColourFromGTKWidget(red, green, blue,
wxGTK_BUTTON,
GTK_STATE_SELECTED) )
{
red =
green = 0;
blue = 0x9c40;
}
gs_objects.m_colHighlight = wxColour( red >> SHIFT,
green >> SHIFT,
blue >> SHIFT );
}
return gs_objects.m_colHighlight;
case wxSYS_COLOUR_LISTBOX:
if (!gs_objects.m_colListBox.Ok())
{
int red, green, blue;
if ( GetColourFromGTKWidget(red, green, blue,
wxGTK_LIST,
GTK_STATE_NORMAL,
wxGTK_BASE) )
{
gs_objects.m_colListBox = wxColour( red >> SHIFT,
green >> SHIFT,
blue >> SHIFT );
}
else
{
gs_objects.m_colListBox = wxColour(*wxWHITE);
}
}
return gs_objects.m_colListBox;
case wxSYS_COLOUR_MENUTEXT:
case wxSYS_COLOUR_WINDOWTEXT:
case wxSYS_COLOUR_CAPTIONTEXT:
case wxSYS_COLOUR_INACTIVECAPTIONTEXT:
case wxSYS_COLOUR_BTNTEXT:
if (!gs_objects.m_colBtnText.Ok())
{
int red, green, blue;
if ( !GetColourFromGTKWidget(red, green, blue,
wxGTK_BUTTON,
GTK_STATE_NORMAL,
wxGTK_FG) )
{
red =
green =
blue = 0;
}
gs_objects.m_colBtnText = wxColour( red >> SHIFT,
green >> SHIFT,
blue >> SHIFT );
}
return gs_objects.m_colBtnText;
case wxSYS_COLOUR_INFOBK:
if (!gs_objects.m_colTooltip.Ok()) {
GetTooltipColors();
}
return gs_objects.m_colTooltip;
case wxSYS_COLOUR_INFOTEXT:
if (!gs_objects.m_colTooltipText.Ok()) {
GetTooltipColors();
}
return gs_objects.m_colTooltipText;
case wxSYS_COLOUR_HIGHLIGHTTEXT:
if (!gs_objects.m_colHighlightText.Ok())
{
wxColour hclr = GetColour(wxSYS_COLOUR_HIGHLIGHT);
if (hclr.Red() > 200 && hclr.Green() > 200 && hclr.Blue() > 200)
gs_objects.m_colHighlightText = wxColour(*wxBLACK);
else
gs_objects.m_colHighlightText = wxColour(*wxWHITE);
}
return gs_objects.m_colHighlightText;
case wxSYS_COLOUR_APPWORKSPACE:
return *wxWHITE; // ?
case wxSYS_COLOUR_ACTIVECAPTION:
case wxSYS_COLOUR_MENUHILIGHT:
if (!gs_objects.m_colMenuItemHighlight.Ok())
{
int red, green, blue;
if ( !GetColourFromGTKWidget(red, green, blue,
wxGTK_MENUITEM,
GTK_STATE_SELECTED,
wxGTK_BG) )
{
red =
green =
blue = 0;
}
gs_objects.m_colMenuItemHighlight = wxColour( red >> SHIFT,
green >> SHIFT,
blue >> SHIFT );
}
return gs_objects.m_colMenuItemHighlight;
case wxSYS_COLOUR_HOTLIGHT:
case wxSYS_COLOUR_GRADIENTACTIVECAPTION:
case wxSYS_COLOUR_GRADIENTINACTIVECAPTION:
// TODO
return *wxBLACK;
case wxSYS_COLOUR_MAX:
default:
wxFAIL_MSG( _T("unknown system colour index") );
}
return *wxWHITE;
}
wxFont wxSystemSettingsNative::GetFont( wxSystemFont index )
{
switch (index)
{
case wxSYS_OEM_FIXED_FONT:
case wxSYS_ANSI_FIXED_FONT:
case wxSYS_SYSTEM_FIXED_FONT:
{
return *wxNORMAL_FONT;
}
case wxSYS_ANSI_VAR_FONT:
case wxSYS_SYSTEM_FONT:
case wxSYS_DEVICE_DEFAULT_FONT:
case wxSYS_DEFAULT_GUI_FONT:
{
if (!gs_objects.m_fontSystem.Ok())
{
gs_objects.m_fontSystem = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
}
return gs_objects.m_fontSystem;
}
default:
return wxNullFont;
}
}
int wxSystemSettingsNative::GetMetric( wxSystemMetric index, wxWindow* win )
{
switch (index)
{
case wxSYS_CURSOR_X:
case wxSYS_CURSOR_Y:
return 16;
// MBN: ditto for icons
case wxSYS_ICON_X: return 32;
case wxSYS_ICON_Y: return 32;
case wxSYS_SCREEN_X:
return gdk_screen_width();
case wxSYS_SCREEN_Y:
return gdk_screen_height();
case wxSYS_HSCROLL_Y: return 15;
case wxSYS_VSCROLL_X: return 15;
// a gtk1 implementation should be possible too if gtk2 efficiency/convenience functions aren't used
#if 0
case wxSYS_CAPTION_Y:
if (!window)
// No realized window specified, and no implementation for that case yet.
return -1;
// Check if wm supports frame extents - we can't know the caption height if it does not.
#if GTK_CHECK_VERSION(2,2,0)
if (!gtk_check_version(2,2,0))
{
if (!gdk_x11_screen_supports_net_wm_hint(
gdk_drawable_get_screen(window),
gdk_atom_intern("_NET_FRAME_EXTENTS", false) ) )
return -1;
}
else
#endif
{
if (!gdk_net_wm_supports(gdk_atom_intern("_NET_FRAME_EXTENTS", false)))
return -1;
}
wxASSERT_MSG( wxDynamicCast(win, wxTopLevelWindow),
wxT("Asking for caption height of a non toplevel window") );
// Get the height of the top windowmanager border.
// This is the titlebar in most cases. The titlebar might be elsewhere, and
// we could check which is the thickest wm border to decide on which side the
// titlebar is, but this might lead to interesting behaviours in used code.
// Reconsider when we have a way to report to the user on which side it is.
Atom type;
gint format;
gulong nitems;
#if GTK_CHECK_VERSION(2,2,0)
if (!gtk_check_version(2,2,0))
{
gulong bytes_after;
success = (XGetWindowProperty (GDK_DISPLAY_XDISPLAY(gdk_drawable_get_display(window)),
GDK_WINDOW_XWINDOW(window),
gdk_x11_get_xatom_by_name_for_display (
gdk_drawable_get_display(window),
"_NET_FRAME_EXTENTS" ),
0, // left, right, top, bottom, CARDINAL[4]/32
G_MAXLONG, // size of long
false, // do not delete property
XA_CARDINAL, // 32 bit
&type, &format, &nitems, &bytes_after, &data
) == Success);
}
#endif
if (success)
{
int caption_height = -1;
if ((type == XA_CARDINAL) && (format == 32) && (nitems >= 3) && (data))
{
long *borders;
borders = (long*)data;
caption_height = borders[2]; // top frame extent
}
if (data)
XFree(data);
return caption_height;
}
// Try a default approach without a window pointer, if possible
// ...
return -1;
#endif // gtk2
case wxSYS_PENWINDOWS_PRESENT:
// No MS Windows for Pen computing extension available in X11 based gtk+.
return 0;
default:
return -1; // metric is unknown
}
}
bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
{
switch (index)
{
case wxSYS_CAN_ICONIZE_FRAME:
return false;
case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
return true;
default:
return false;
}
}