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