| 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: $Id$ |
| 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 | #include "wx/stockitem.h" |
| 35 | |
| 36 | #include "wx/gtk/private.h" |
| 37 | #include "wx/gtk/private/messagetype.h" |
| 38 | |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | // local classes |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | |
| 43 | class wxInfoBarGTKImpl |
| 44 | { |
| 45 | public: |
| 46 | wxInfoBarGTKImpl() |
| 47 | { |
| 48 | m_label = NULL; |
| 49 | m_close = NULL; |
| 50 | } |
| 51 | |
| 52 | // label for the text shown in the bar |
| 53 | GtkWidget *m_label; |
| 54 | |
| 55 | // the default close button, NULL if not needed (m_buttons is not empty) or |
| 56 | // not created yet |
| 57 | GtkWidget *m_close; |
| 58 | |
| 59 | // information about the buttons added using AddButton() |
| 60 | struct Button |
| 61 | { |
| 62 | Button(GtkWidget *button_, int id_) |
| 63 | : button(button_), |
| 64 | id(id_) |
| 65 | { |
| 66 | } |
| 67 | |
| 68 | GtkWidget *button; |
| 69 | int id; |
| 70 | }; |
| 71 | typedef wxVector<Button> Buttons; |
| 72 | |
| 73 | Buttons m_buttons; |
| 74 | }; |
| 75 | |
| 76 | // ---------------------------------------------------------------------------- |
| 77 | // local functions |
| 78 | // ---------------------------------------------------------------------------- |
| 79 | |
| 80 | namespace |
| 81 | { |
| 82 | |
| 83 | inline bool UseNative() |
| 84 | { |
| 85 | // native GtkInfoBar widget is only available in GTK+ 2.18 and later |
| 86 | return gtk_check_version(2, 18, 0) == 0; |
| 87 | } |
| 88 | |
| 89 | } // anonymous namespace |
| 90 | |
| 91 | extern "C" |
| 92 | { |
| 93 | |
| 94 | static void wxgtk_infobar_response(GtkInfoBar * WXUNUSED(infobar), |
| 95 | gint btnid, |
| 96 | wxInfoBar *win) |
| 97 | { |
| 98 | win->GTKResponse(btnid); |
| 99 | } |
| 100 | |
| 101 | static void wxgtk_infobar_close(GtkInfoBar * WXUNUSED(infobar), |
| 102 | wxInfoBar *win) |
| 103 | { |
| 104 | win->GTKResponse(wxID_CANCEL); |
| 105 | } |
| 106 | |
| 107 | } // extern "C" section with GTK+ callbacks |
| 108 | |
| 109 | // ============================================================================ |
| 110 | // wxInfoBar implementation |
| 111 | // ============================================================================ |
| 112 | |
| 113 | bool wxInfoBar::Create(wxWindow *parent, wxWindowID winid) |
| 114 | { |
| 115 | if ( !UseNative() ) |
| 116 | return wxInfoBarGeneric::Create(parent, winid); |
| 117 | |
| 118 | m_impl = new wxInfoBarGTKImpl; |
| 119 | |
| 120 | // this control is created initially hidden |
| 121 | Hide(); |
| 122 | if ( !CreateBase(parent, winid) ) |
| 123 | return false; |
| 124 | |
| 125 | // create the info bar widget itself |
| 126 | m_widget = gtk_info_bar_new(); |
| 127 | wxCHECK_MSG( m_widget, false, "failed to create GtkInfoBar" ); |
| 128 | g_object_ref(m_widget); |
| 129 | |
| 130 | // also create a label which will be used to show our message |
| 131 | m_impl->m_label = gtk_label_new(""); |
| 132 | gtk_widget_show(m_impl->m_label); |
| 133 | |
| 134 | GtkWidget * const |
| 135 | contentArea = gtk_info_bar_get_content_area(GTK_INFO_BAR(m_widget)); |
| 136 | wxCHECK_MSG( contentArea, false, "failed to get GtkInfoBar content area" ); |
| 137 | gtk_container_add(GTK_CONTAINER(contentArea), m_impl->m_label); |
| 138 | |
| 139 | // finish creation and connect to all the signals we're interested in |
| 140 | m_parent->DoAddChild(this); |
| 141 | |
| 142 | PostCreation(wxDefaultSize); |
| 143 | |
| 144 | GTKConnectWidget("response", G_CALLBACK(wxgtk_infobar_response)); |
| 145 | GTKConnectWidget("close", G_CALLBACK(wxgtk_infobar_close)); |
| 146 | |
| 147 | return true; |
| 148 | } |
| 149 | |
| 150 | wxInfoBar::~wxInfoBar() |
| 151 | { |
| 152 | delete m_impl; |
| 153 | } |
| 154 | |
| 155 | void wxInfoBar::ShowMessage(const wxString& msg, int flags) |
| 156 | { |
| 157 | if ( !UseNative() ) |
| 158 | { |
| 159 | wxInfoBarGeneric::ShowMessage(msg, flags); |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | // if we don't have any buttons, create a standard close one to give the |
| 164 | // user at least some way to close the bar |
| 165 | if ( m_impl->m_buttons.empty() && !m_impl->m_close ) |
| 166 | { |
| 167 | m_impl->m_close = GTKAddButton(wxID_CLOSE); |
| 168 | } |
| 169 | |
| 170 | GtkMessageType type; |
| 171 | if ( wxGTKImpl::ConvertMessageTypeFromWX(flags, &type) ) |
| 172 | gtk_info_bar_set_message_type(GTK_INFO_BAR(m_widget), type); |
| 173 | gtk_label_set_text(GTK_LABEL(m_impl->m_label), wxGTK_CONV(msg)); |
| 174 | |
| 175 | if ( !IsShown() ) |
| 176 | Show(); |
| 177 | |
| 178 | UpdateParent(); |
| 179 | } |
| 180 | |
| 181 | void wxInfoBar::Dismiss() |
| 182 | { |
| 183 | if ( !UseNative() ) |
| 184 | { |
| 185 | wxInfoBarGeneric::Dismiss(); |
| 186 | return; |
| 187 | } |
| 188 | |
| 189 | Hide(); |
| 190 | |
| 191 | UpdateParent(); |
| 192 | } |
| 193 | |
| 194 | void wxInfoBar::GTKResponse(int btnid) |
| 195 | { |
| 196 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, btnid); |
| 197 | event.SetEventObject(this); |
| 198 | |
| 199 | if ( !HandleWindowEvent(event) ) |
| 200 | Dismiss(); |
| 201 | } |
| 202 | |
| 203 | GtkWidget *wxInfoBar::GTKAddButton(wxWindowID btnid, const wxString& label) |
| 204 | { |
| 205 | // as GTK+ lays out the buttons vertically, adding another button changes |
| 206 | // our best size (at least in vertical direction) |
| 207 | InvalidateBestSize(); |
| 208 | |
| 209 | GtkWidget *button = gtk_info_bar_add_button |
| 210 | ( |
| 211 | GTK_INFO_BAR(m_widget), |
| 212 | (label.empty() |
| 213 | ? GTKConvertMnemonics(wxGetStockGtkID(btnid)) |
| 214 | : label).utf8_str(), |
| 215 | btnid |
| 216 | ); |
| 217 | |
| 218 | wxASSERT_MSG( button, "unexpectedly failed to add button to info bar" ); |
| 219 | |
| 220 | return button; |
| 221 | } |
| 222 | |
| 223 | void wxInfoBar::AddButton(wxWindowID btnid, const wxString& label) |
| 224 | { |
| 225 | if ( !UseNative() ) |
| 226 | { |
| 227 | wxInfoBarGeneric::AddButton(btnid, label); |
| 228 | return; |
| 229 | } |
| 230 | |
| 231 | // if we had created the default close button before, remove it now that we |
| 232 | // have some user-defined button |
| 233 | if ( m_impl->m_close ) |
| 234 | { |
| 235 | gtk_widget_destroy(m_impl->m_close); |
| 236 | m_impl->m_close = NULL; |
| 237 | } |
| 238 | |
| 239 | GtkWidget * const button = GTKAddButton(btnid, label); |
| 240 | if ( button ) |
| 241 | m_impl->m_buttons.push_back(wxInfoBarGTKImpl::Button(button, btnid)); |
| 242 | } |
| 243 | |
| 244 | void wxInfoBar::RemoveButton(wxWindowID btnid) |
| 245 | { |
| 246 | if ( !UseNative() ) |
| 247 | { |
| 248 | wxInfoBarGeneric::RemoveButton(btnid); |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | // as in the generic version, look for the button starting from the end |
| 253 | wxInfoBarGTKImpl::Buttons& buttons = m_impl->m_buttons; |
| 254 | for ( wxInfoBarGTKImpl::Buttons::reverse_iterator i = buttons.rbegin(); |
| 255 | i != buttons.rend(); |
| 256 | ++i ) |
| 257 | { |
| 258 | if (i->id == btnid) |
| 259 | { |
| 260 | gtk_widget_destroy(i->button); |
| 261 | buttons.erase(i.base()); |
| 262 | |
| 263 | // see comment in GTKAddButton() |
| 264 | InvalidateBestSize(); |
| 265 | |
| 266 | return; |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | wxFAIL_MSG( wxString::Format("button with id %d not found", btnid) ); |
| 271 | } |
| 272 | |
| 273 | void wxInfoBar::DoApplyWidgetStyle(GtkRcStyle *style) |
| 274 | { |
| 275 | wxInfoBarGeneric::DoApplyWidgetStyle(style); |
| 276 | |
| 277 | if ( UseNative() ) |
| 278 | gtk_widget_modify_style(m_impl->m_label, style); |
| 279 | } |
| 280 | |
| 281 | #endif // wxUSE_INFOBAR |