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 // Copyright:   (c) 2007 Francesco Montorsi
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // ============================================================================
  11 // declarations
  12 // ============================================================================
  13
  14 // --------------------------------------------------------------------------
  15 // headers
  16 // --------------------------------------------------------------------------
  17
  18 // For compilers that support precompilation, includes "wx.h".
  19 #include "wx/wxprec.h"
  20
  21 #ifdef __BORLANDC__
  22     #pragma hdrstop
  23 #endif
  24
  25 #if wxUSE_HYPERLINKCTRL && defined(__WXGTK210__) && !defined(__WXUNIVERSAL__)
  26
  27 #include "wx/hyperlink.h"
  28
  29 #ifndef WX_PRECOMP
  30 #endif
  31
  32 #include <gtk/gtk.h>
  33 #include "wx/gtk/private.h"
  34
  35 // ----------------------------------------------------------------------------
  36 // local functions
  37 // ----------------------------------------------------------------------------
  38
  39 static inline bool UseNative()
  40 {
  41     // native gtk_link_button widget is only available in GTK+ 2.10 and later
  42 #ifdef __WXGTK3__
  43     return true;
  44 #else
  45     return !gtk_check_version(2, 10, 0);
  46 #endif
  47 }
  48
  49 // ============================================================================
  50 // implementation
  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
  89         // alignment
  90         float x_alignment = 0.5;
  91         if (HasFlag(wxHL_ALIGN_LEFT))
  92             x_alignment = 0.0;
  93         else if (HasFlag(wxHL_ALIGN_RIGHT))
  94             x_alignment = 1.0;
  95         gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, 0.5);
  96
  97         // set to non empty strings both the url and the label
  98         SetURL(url.empty() ? label : url);
  99         SetLabel(label.empty() ? url : label);
 100
 101         // our signal handlers:
 102         g_signal_connect_after (m_widget, "clicked",
 103                                 G_CALLBACK (gtk_hyperlink_clicked_callback),
 104                                 this);
 105
 106         m_parent->DoAddChild( this );
 107
 108         PostCreation(size);
 109
 110         // wxWindowGTK will connect to the enter_notify and leave_notify GTK+ signals
 111         // thus overriding GTK+'s internal signal handlers which set the cursor of
 112         // the widget - thus we need to manually set it here:
 113         SetCursor(wxCursor(wxCURSOR_HAND));
 114     }
 115     else
 116         return wxGenericHyperlinkCtrl::Create(parent, id, label, url, pos, size, style, name);
 117
 118     return true;
 119 }
 120
 121 wxSize wxHyperlinkCtrl::DoGetBestSize() const
 122 {
 123     if ( UseNative() )
 124         return wxControl::DoGetBestSize();
 125     return wxGenericHyperlinkCtrl::DoGetBestSize();
 126 }
 127
 128 wxSize wxHyperlinkCtrl::DoGetBestClientSize() const
 129 {
 130     if ( UseNative() )
 131         return wxControl::DoGetBestClientSize();
 132     return wxGenericHyperlinkCtrl::DoGetBestClientSize();
 133 }
 134
 135 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 136 {
 137     if ( UseNative() )
 138     {
 139         wxControl::SetLabel(label);
 140         const wxString labelGTK = GTKConvertMnemonics(label);
 141         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 142     }
 143     else
 144         wxGenericHyperlinkCtrl::SetLabel(label);
 145 }
 146
 147 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 148 {
 149     if ( UseNative() )
 150         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 151     else
 152         wxGenericHyperlinkCtrl::SetURL(uri);
 153 }
 154
 155 wxString wxHyperlinkCtrl::GetURL() const
 156 {
 157     if ( UseNative() )
 158     {
 159         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 160         return wxString::FromUTF8(str);
 161     }
 162
 163     return wxGenericHyperlinkCtrl::GetURL();
 164 }
 165
 166 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 167 {
 168     if ( UseNative() )
 169     {
 170         // simply do nothing: GTK+ does not allow us to change it :(
 171     }
 172     else
 173         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 174 }
 175
 176 wxColour wxHyperlinkCtrl::GetNormalColour() const
 177 {
 178     wxColour ret;
 179     if ( UseNative() )
 180     {
 181         GdkColor *link_color = NULL;
 182
 183         // convert GdkColor in wxColour
 184         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 185         if (link_color)
 186             ret = wxColour(*link_color);
 187         gdk_color_free (link_color);
 188     }
 189     else
 190         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 191
 192     return ret;
 193 }
 194
 195 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 196 {
 197     if ( UseNative() )
 198     {
 199         // simply do nothing: GTK+ does not allow us to change it :(
 200     }
 201     else
 202         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 203 }
 204
 205 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 206 {
 207     wxColour ret;
 208     if ( UseNative() )
 209     {
 210         GdkColor *link_color = NULL;
 211
 212         // convert GdkColor in wxColour
 213         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 214         if (link_color)
 215             ret = wxColour(*link_color);
 216         gdk_color_free (link_color);
 217     }
 218     else
 219         return wxGenericHyperlinkCtrl::GetVisitedColour();
 220
 221     return ret;
 222 }
 223
 224 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 225 {
 226     if ( UseNative() )
 227     {
 228         // simply do nothing: GTK+ does not allow us to change it :(
 229     }
 230     else
 231         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 232 }
 233
 234 wxColour wxHyperlinkCtrl::GetHoverColour() const
 235 {
 236     if ( UseNative() )
 237     {
 238         // hover colour == normal colour for native GTK+ widget
 239         return GetNormalColour();
 240     }
 241
 242     return wxGenericHyperlinkCtrl::GetHoverColour();
 243 }
 244
 245 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 246 {
 247     return UseNative() ? gtk_button_get_event_window(GTK_BUTTON(m_widget))
 248                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 249 }
 250
 251 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+