src/gtk/infobar.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/infobar.cpp
   3 // Purpose:     wxInfoBar implementation for GTK
   4 // Author:      Vadim Zeitlin
   5 // Created:     2009-09-27
   6 // RCS-ID:      $Id: wxhead.cpp,v 1.10 2009-06-29 10:23:04 zeitlin Exp $
   7 // Copyright:   (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #include "wx/infobar.h"
  27
  28 #if wxUSE_INFOBAR && defined(wxHAS_NATIVE_INFOBAR)
  29
  30 #ifndef WX_PRECOMP
  31 #endif // WX_PRECOMP
  32
  33 #include "wx/vector.h"
  34
  35 #include "wx/gtk/private.h"
  36 #include "wx/gtk/private/messagetype.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // local classes
  40 // ----------------------------------------------------------------------------
  41
  42 class wxInfoBarGTKImpl
  43 {
  44 public:
  45     wxInfoBarGTKImpl()
  46     {
  47         m_label = NULL;
  48     }
  49
  50     GtkWidget *m_label;
  51
  52     struct Button
  53     {
  54         Button(GtkWidget *button_, int id_)
  55             : button(button_),
  56               id(id_)
  57         {
  58         }
  59
  60         GtkWidget *button;
  61         int id;
  62     };
  63     typedef wxVector<Button> Buttons;
  64
  65     Buttons m_buttons;
  66 };
  67
  68 // ----------------------------------------------------------------------------
  69 // local functions
  70 // ----------------------------------------------------------------------------
  71
  72 namespace
  73 {
  74
  75 inline bool UseNative()
  76 {
  77     // native GtkInfoBar widget is only available in GTK+ 2.18 and later
  78     return gtk_check_version(2, 18, 0) == 0;
  79 }
  80
  81 } // anonymous namespace
  82
  83 extern "C"
  84 {
  85
  86 static void wxgtk_infobar_response(GtkInfoBar * WXUNUSED(infobar),
  87                                    gint btnid,
  88                                    wxInfoBar *win)
  89 {
  90     win->GTKResponse(btnid);
  91 }
  92
  93 static void wxgtk_infobar_close(GtkInfoBar * WXUNUSED(infobar),
  94                                 wxInfoBar *win)
  95 {
  96     win->GTKResponse(wxID_CANCEL);
  97 }
  98
  99 } // extern "C" section with GTK+ callbacks
 100
 101 // ============================================================================
 102 // wxInfoBar implementation
 103 // ============================================================================
 104
 105 bool wxInfoBar::Create(wxWindow *parent, wxWindowID winid)
 106 {
 107     if ( !UseNative() )
 108         return wxInfoBarGeneric::Create(parent, winid);
 109
 110     m_impl = new wxInfoBarGTKImpl;
 111
 112     // this control is created initially hidden
 113     Hide();
 114     if ( !CreateBase(parent, winid) )
 115         return false;
 116
 117     // create the info bar widget itself
 118     m_widget = gtk_info_bar_new();
 119     wxCHECK_MSG( m_widget, false, "failed to create GtkInfoBar" );
 120     g_object_ref(m_widget);
 121
 122     // also create a label which will be used to show our message
 123     m_impl->m_label = gtk_label_new("");
 124     gtk_widget_show(m_impl->m_label);
 125
 126     GtkWidget * const
 127         contentArea = gtk_info_bar_get_content_area(GTK_INFO_BAR(m_widget));
 128     wxCHECK_MSG( contentArea, false, "failed to get GtkInfoBar content area" );
 129     gtk_container_add(GTK_CONTAINER(contentArea), m_impl->m_label);
 130
 131     // finish creation and connect to all the signals we're interested in
 132     m_parent->DoAddChild(this);
 133
 134     PostCreation(wxDefaultSize);
 135
 136     GTKConnectWidget("response", G_CALLBACK(wxgtk_infobar_response));
 137     GTKConnectWidget("close", G_CALLBACK(wxgtk_infobar_close));
 138
 139     return false;
 140 }
 141
 142 wxInfoBar::~wxInfoBar()
 143 {
 144     delete m_impl;
 145 }
 146
 147 void wxInfoBar::ShowMessage(const wxString& msg, int flags)
 148 {
 149     if ( !UseNative() )
 150     {
 151         wxInfoBarGeneric::ShowMessage(msg, flags);
 152         return;
 153     }
 154
 155     GtkMessageType type;
 156     if ( wxGTKImpl::ConvertMessageTypeFromWX(flags, &type) )
 157         gtk_info_bar_set_message_type(GTK_INFO_BAR(m_widget), type);
 158     gtk_label_set_text(GTK_LABEL(m_impl->m_label), wxGTK_CONV(msg));
 159
 160     if ( !IsShown() )
 161         Show();
 162
 163     UpdateParent();
 164 }
 165
 166 void wxInfoBar::GTKResponse(int WXUNUSED(btnid))
 167 {
 168     Hide();
 169
 170     UpdateParent();
 171 }
 172
 173 void wxInfoBar::AddButton(wxWindowID btnid, const wxString& label)
 174 {
 175     if ( !UseNative() )
 176     {
 177         wxInfoBarGeneric::AddButton(btnid, label);
 178         return;
 179     }
 180
 181     GtkWidget *button = gtk_info_bar_add_button
 182                         (
 183                             GTK_INFO_BAR(m_widget),
 184                             label.empty()
 185                                 ? GTKConvertMnemonics(wxGetStockGtkID(btnid))
 186                                 : label,
 187                             btnid
 188                         );
 189     wxCHECK_RET( button, "unexpectedly failed to add button to info bar" );
 190
 191     g_object_ref(button);
 192     m_impl->m_buttons.push_back(wxInfoBarGTKImpl::Button(button, btnid));
 193 }
 194
 195 void wxInfoBar::RemoveButton(wxWindowID btnid)
 196 {
 197     if ( !UseNative() )
 198     {
 199         wxInfoBarGeneric::RemoveButton(btnid);
 200         return;
 201     }
 202
 203     // as in the generic version, look for the button starting from the end
 204     wxInfoBarGTKImpl::Buttons& buttons = m_impl->m_buttons;
 205     for ( wxInfoBarGTKImpl::Buttons::reverse_iterator i = buttons.rbegin();
 206           i != buttons.rend();
 207           ++i )
 208     {
 209         GtkWidget * const button = i->button;
 210         buttons.erase(i.base());
 211         gtk_widget_destroy(button);
 212         g_object_unref(button);
 213         return;
 214     }
 215
 216     wxFAIL_MSG( wxString::Format("button with id %d not found", btnid) );
 217 }
 218
 219 #endif // wxUSE_INFOBAR