src/gtk/hyperlink.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/hyperlink.cpp
   3 // Purpose:     Hyperlink control
   4 // Author:      Francesco Montorsi
   5 // Created:     14/2/2007
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2007 Francesco Montorsi
   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 #if wxUSE_HYPERLINKCTRL && defined(__WXGTK210__) && !defined(__WXUNIVERSAL__)
  27
  28 #include "wx/hyperlink.h"
  29
  30 #ifndef WX_PRECOMP
  31 #endif
  32
  33 #include <gtk/gtk.h>
  34 #include "wx/gtk/private.h"
  35
  36 // ----------------------------------------------------------------------------
  37 // local functions
  38 // ----------------------------------------------------------------------------
  39
  40 static inline bool UseNative()
  41 {
  42     // native gtk_link_button widget is only available in GTK+ 2.10 and later
  43     return !gtk_check_version(2, 10, 0);
  44 }
  45
  46 // ============================================================================
  47 // implementation
  48 // ============================================================================
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxHyperlinkCtrl, wxGenericHyperlinkCtrl)
  51
  52
  53 // ----------------------------------------------------------------------------
  54 // "clicked"
  55 // ----------------------------------------------------------------------------
  56
  57 extern "C" {
  58 static void gtk_hyperlink_clicked_callback( GtkWidget *WXUNUSED(widget),
  59                                             wxHyperlinkCtrl *linkCtrl )
  60 {
  61     // send the event
  62     linkCtrl->SendEvent();
  63 }
  64 }
  65
  66 // ----------------------------------------------------------------------------
  67 // wxHyperlinkCtrl
  68 // ----------------------------------------------------------------------------
  69
  70 bool wxHyperlinkCtrl::Create(wxWindow *parent, wxWindowID id,
  71     const wxString& label, const wxString& url, const wxPoint& pos,
  72     const wxSize& size, long style, const wxString& name)
  73 {
  74     if ( UseNative() )
  75     {
  76         // do validation checks:
  77         CheckParams(label, url, style);
  78
  79         if (!PreCreation( parent, pos, size ) ||
  80             !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  81         {
  82             wxFAIL_MSG( wxT("wxHyperlinkCtrl creation failed") );
  83             return false;
  84         }
  85
  86         m_widget = gtk_link_button_new("asdfsaf asdfdsaf asdfdsa");
  87         g_object_ref(m_widget);
  88         gtk_widget_show(m_widget);
  89
  90         // alignment
  91         float x_alignment = 0.5;
  92         if (HasFlag(wxHL_ALIGN_LEFT))
  93             x_alignment = 0.0;
  94         else if (HasFlag(wxHL_ALIGN_RIGHT))
  95             x_alignment = 1.0;
  96         gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, 0.5);
  97
  98         // set to non empty strings both the url and the label
  99         SetURL(url.empty() ? label : url);
 100         SetLabel(label.empty() ? url : label);
 101
 102         // our signal handlers:
 103         g_signal_connect_after (m_widget, "clicked",
 104                                 G_CALLBACK (gtk_hyperlink_clicked_callback),
 105                                 this);
 106
 107         m_parent->DoAddChild( this );
 108
 109         PostCreation(size);
 110         SetInitialSize(size);
 111
 112         // wxWindowGTK will connect to the enter_notify and leave_notify GTK+ signals
 113         // thus overriding GTK+'s internal signal handlers which set the cursor of
 114         // the widget - thus we need to manually set it here:
 115         SetCursor(wxCursor(wxCURSOR_HAND));
 116     }
 117     else
 118         return wxGenericHyperlinkCtrl::Create(parent, id, label, url, pos, size, style, name);
 119
 120     return true;
 121 }
 122
 123 wxSize wxHyperlinkCtrl::DoGetBestSize() const
 124 {
 125     if ( UseNative() )
 126         return wxControl::DoGetBestSize();
 127     return wxGenericHyperlinkCtrl::DoGetBestSize();
 128 }
 129
 130 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 131 {
 132     if ( UseNative() )
 133     {
 134         wxControl::SetLabel(label);
 135         const wxString labelGTK = GTKConvertMnemonics(label);
 136         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 137     }
 138     else
 139         wxGenericHyperlinkCtrl::SetLabel(label);
 140 }
 141
 142 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 143 {
 144     if ( UseNative() )
 145         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 146     else
 147         wxGenericHyperlinkCtrl::SetURL(uri);
 148 }
 149
 150 wxString wxHyperlinkCtrl::GetURL() const
 151 {
 152     if ( UseNative() )
 153     {
 154         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 155         return wxString(str, *wxConvFileName);
 156     }
 157
 158     return wxGenericHyperlinkCtrl::GetURL();
 159 }
 160
 161 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 162 {
 163     if ( UseNative() )
 164     {
 165         // simply do nothing: GTK+ does not allow us to change it :(
 166     }
 167     else
 168         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 169 }
 170
 171 wxColour wxHyperlinkCtrl::GetNormalColour() const
 172 {
 173     wxColour ret;
 174     if ( UseNative() )
 175     {
 176         GdkColor *link_color = NULL;
 177
 178         // convert GdkColor in wxColour
 179         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 180         if (link_color)
 181             ret = wxColour(*link_color);
 182         gdk_color_free (link_color);
 183     }
 184     else
 185         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 186
 187     return ret;
 188 }
 189
 190 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 191 {
 192     if ( UseNative() )
 193     {
 194         // simply do nothing: GTK+ does not allow us to change it :(
 195     }
 196     else
 197         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 198 }
 199
 200 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 201 {
 202     wxColour ret;
 203     if ( UseNative() )
 204     {
 205         GdkColor *link_color = NULL;
 206
 207         // convert GdkColor in wxColour
 208         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 209         if (link_color)
 210             ret = wxColour(*link_color);
 211         gdk_color_free (link_color);
 212     }
 213     else
 214         return wxGenericHyperlinkCtrl::GetVisitedColour();
 215
 216     return ret;
 217 }
 218
 219 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 220 {
 221     if ( UseNative() )
 222     {
 223         // simply do nothing: GTK+ does not allow us to change it :(
 224     }
 225     else
 226         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 227 }
 228
 229 wxColour wxHyperlinkCtrl::GetHoverColour() const
 230 {
 231     if ( UseNative() )
 232     {
 233         // hover colour == normal colour for native GTK+ widget
 234         return GetNormalColour();
 235     }
 236
 237     return wxGenericHyperlinkCtrl::GetHoverColour();
 238 }
 239
 240 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 241 {
 242     return UseNative() ? GTK_BUTTON(m_widget)->event_window
 243                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 244 }
 245
 246 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+