src/gtk/tooltip.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        tooltip.cpp
   3 // Purpose:     wxToolTip implementation
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11     #pragma implementation "tooltip.h"
  12 #endif
  13
  14 #include "wx/setup.h"
  15
  16 #if wxUSE_TOOLTIPS
  17
  18 #include "wx/window.h"
  19 #include "wx/tooltip.h"
  20
  21 #include "gtk/gtk.h"
  22 #include "gdk/gdk.h"
  23
  24 extern GdkFont *GtkGetDefaultGuiFont();
  25
  26 //-----------------------------------------------------------------------------
  27 // global data
  28 //-----------------------------------------------------------------------------
  29
  30 static GtkTooltips *ss_tooltips = (GtkTooltips*) NULL;
  31 static GdkColor     ss_bg;
  32 static GdkColor     ss_fg;
  33
  34 //-----------------------------------------------------------------------------
  35 // wxToolTip
  36 //-----------------------------------------------------------------------------
  37
  38 IMPLEMENT_ABSTRACT_CLASS(wxToolTip, wxObject)
  39
  40 wxToolTip::wxToolTip( const wxString &tip )
  41 {
  42     m_text = tip;
  43     m_window = (wxWindow*) NULL;
  44 }
  45
  46 void wxToolTip::SetTip( const wxString &tip )
  47 {
  48     m_text = tip;
  49     Apply( m_window );
  50 }
  51
  52 void wxToolTip::Apply( wxWindow *win )
  53 {
  54     if (!win) return;
  55
  56     if (!ss_tooltips)
  57     {
  58         ss_tooltips = gtk_tooltips_new();
  59
  60         ss_fg.red = 0;
  61         ss_fg.green = 0;
  62         ss_fg.blue = 0;
  63         gdk_color_alloc( gtk_widget_get_default_colormap(), &ss_fg );
  64
  65         ss_bg.red = 65535;
  66         ss_bg.green = 65535;
  67         ss_bg.blue = 50000;
  68         gdk_color_alloc( gtk_widget_get_default_colormap(), &ss_bg );
  69
  70 #if (GTK_MINOR_VERSION > 0)
  71         gtk_tooltips_force_window( ss_tooltips );
  72
  73         GtkStyle *g_style =
  74           gtk_style_copy(
  75             gtk_widget_get_style( ss_tooltips->tip_window ) );
  76
  77         g_style->fg[GTK_STATE_NORMAL] = ss_fg;
  78         g_style->bg[GTK_STATE_NORMAL] = ss_bg;
  79         gdk_font_unref( g_style->font );
  80             g_style->font = gdk_font_ref( GtkGetDefaultGuiFont() );
  81
  82         gtk_widget_set_style( ss_tooltips->tip_window, g_style );
  83 #else
  84         gtk_tooltips_set_colors( ss_tooltips, &ss_bg, &ss_fg );
  85 #endif
  86     }
  87
  88     m_window = win;
  89
  90     if (m_text.IsEmpty())
  91         m_window->ApplyToolTip( ss_tooltips, (wxChar*) NULL );
  92     else
  93         m_window->ApplyToolTip( ss_tooltips, m_text );
  94 }
  95
  96 void wxToolTip::Enable( bool flag )
  97 {
  98     if (!ss_tooltips) return;
  99
 100     if (flag)
 101         gtk_tooltips_enable( ss_tooltips );
 102     else
 103         gtk_tooltips_disable( ss_tooltips );
 104 }
 105
 106 void wxToolTip::SetDelay( long msecs )
 107 {
 108     if (!ss_tooltips)
 109         return;
 110
 111     gtk_tooltips_set_delay( ss_tooltips, (int)msecs );
 112 }
 113
 114 #endif
 115