include/wx/gtk/private.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/private.h
   3 // Purpose:     wxGTK private macros, functions &c
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     12.03.02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GTK_PRIVATE_H_
  13 #define _WX_GTK_PRIVATE_H_
  14
  15 #include <gdk/gdk.h>
  16 #include <gtk/gtk.h>
  17
  18 #include "wx/event.h"
  19
  20 // fail all version tests if the GTK+ version is so ancient that it doesn't
  21 // even have GTK_CHECK_VERSION
  22 #ifndef GTK_CHECK_VERSION
  23     #define GTK_CHECK_VERSION(a, b, c) 0
  24 #endif
  25
  26 // GTK+ 2.0 compatibility define is broken when used from C++ as it casts enum
  27 // to int implicitly
  28 #ifdef __WXGTK20__
  29     #undef gtk_signal_disconnect_by_func
  30     #define gtk_signal_disconnect_by_func(object,func,data) \
  31         gtk_signal_compat_matched((object), (func), (data), \
  32                                   (GSignalMatchType)(G_SIGNAL_MATCH_FUNC | \
  33                                                      G_SIGNAL_MATCH_DATA), 0)
  34 #endif
  35
  36 // child is not a member of GTK_BUTTON() any more in GTK+ 2.0
  37 #ifdef __WXGTK20__
  38     #define BUTTON_CHILD(w) GTK_BIN((w))->child
  39 #else
  40     #define BUTTON_CHILD(w) GTK_BUTTON((w))->child
  41 #endif
  42
  43 // event_window has disappeared from GtkToggleButton in GTK+ 2.0
  44 #ifdef __WXGTK20__
  45     #define TOGGLE_BUTTON_EVENT_WIN(w) GTK_BUTTON((w))->event_window
  46 #else
  47     #define TOGGLE_BUTTON_EVENT_WIN(w) GTK_TOGGLE_BUTTON((w))->event_window
  48 #endif
  49
  50 // get the font from a style
  51 //
  52 // TODO: GdkFont has been replaced by PangoFontDescription in GTK+ 2.0
  53 //       and we really should use it instead of GdkFont (see also dclient.cpp)
  54 #ifdef __WXGTK20__
  55     #define GET_STYLE_FONT(style) gtk_style_get_font(style)
  56     #define SET_STYLE_FONT(style, font) gtk_style_set_font(style, font)
  57 #else
  58     #define GET_STYLE_FONT(style) ((style)->font)
  59     #define SET_STYLE_FONT(style, fnt) \
  60         gdk_font_unref( style->font );  \
  61         style->font = gdk_font_ref( fnt )
  62 #endif
  63
  64 // gtk_editable_{copy|cut|paste}_clipboard() had an extra argument under
  65 // previous GTK+ versions but no more
  66 #if defined(__WXGTK20__) || (GTK_MINOR_VERSION > 0)
  67     #define DUMMY_CLIPBOARD_ARG
  68 #else
  69     #define DUMMY_CLIPBOARD_ARG  ,0
  70 #endif
  71
  72 // _GtkEditable is now private
  73 #ifdef __WXGTK20__
  74     #define GET_EDITABLE_POS(w) gtk_editable_get_position(GTK_EDITABLE(w))
  75     #define SET_EDITABLE_POS(w, pos) \
  76         gtk_editable_set_position(GTK_EDITABLE(w), (pos))
  77 #else
  78     #define GET_EDITABLE_POS(w) GTK_EDITABLE((w))->current_pos
  79     #define SET_EDITABLE_POS(w, pos) \
  80         GTK_EDITABLE((w))->current_pos = (pos)
  81 #endif
  82
  83 // this GtkNotebook struct field has been renamed
  84 #ifdef __WXGTK20__
  85     #define NOTEBOOK_PANEL(nb)  GTK_NOTEBOOK(nb)->event_window
  86 #else
  87     #define NOTEBOOK_PANEL(nb)  GTK_NOTEBOOK(nb)->panel
  88 #endif
  89
  90 // VZ: I _think_ that in GTK+ 2.0 the scroll type is passed to the
  91 //     value_changed callback as a 2nd argument but I'm not at all sure about
  92 //     it, if this is false all occurences of this macro must be changed!
  93 #ifdef __WXGTK20__
  94     #define SCROLLBAR_CBACK_ARG GtkScrollType scrollType,
  95     #define GET_SCROLL_TYPE(w)   scrollType
  96 #else
  97     #define SCROLLBAR_CBACK_ARG
  98     #define GET_SCROLL_TYPE(w)   GTK_RANGE((w))->scroll_type
  99 #endif
 100
 101 // translate a GTK+ scroll type to a wxEventType
 102 inline wxEventType GtkScrollTypeToWx(guint scrollType)
 103 {
 104     wxEventType command;
 105     switch ( scrollType )
 106     {
 107         case GTK_SCROLL_STEP_BACKWARD:
 108             command = wxEVT_SCROLL_LINEUP;
 109             break;
 110
 111         case GTK_SCROLL_STEP_FORWARD:
 112             command = wxEVT_SCROLL_LINEDOWN;
 113             break;
 114
 115         case GTK_SCROLL_PAGE_BACKWARD:
 116             command = wxEVT_SCROLL_PAGEUP;
 117             break;
 118
 119         case GTK_SCROLL_PAGE_FORWARD:
 120             command = wxEVT_SCROLL_PAGEDOWN;
 121             break;
 122
 123         default:
 124             command = wxEVT_SCROLL_THUMBTRACK;
 125     }
 126
 127     return command;
 128 }
 129
 130 inline wxEventType GtkScrollWinTypeToWx(guint scrollType)
 131 {
 132     // GtkScrollTypeToWx() returns SCROLL_XXX, not SCROLLWIN_XXX as we need
 133     return GtkScrollTypeToWx(scrollType) +
 134             wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
 135 }
 136
 137 #endif // _WX_GTK_PRIVATE_H_
 138