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__)
  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         m_needParent = true;
  80         m_acceptsFocus = true;
  81
  82         if (!PreCreation( parent, pos, size ) ||
  83             !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  84         {
  85             wxFAIL_MSG( wxT("wxHyperlinkCtrl creation failed") );
  86             return false;
  87         }
  88
  89         m_widget = gtk_link_button_new("asdfsaf asdfdsaf asdfdsa");
  90         gtk_widget_show( GTK_WIDGET(m_widget) );
  91
  92         // alignment
  93         float x_alignment = 0.5;
  94         if (HasFlag(wxHL_ALIGN_LEFT))
  95             x_alignment = 0.0;
  96         else if (HasFlag(wxHL_ALIGN_RIGHT))
  97             x_alignment = 1.0;
  98         gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, 0.5);
  99
 100         // set to non empty strings both the url and the label
 101         SetURL(url.empty() ? label : url);
 102         SetLabel(label.empty() ? url : label);
 103
 104         // our signal handlers:
 105         g_signal_connect_after (m_widget, "clicked",
 106                                 G_CALLBACK (gtk_hyperlink_clicked_callback),
 107                                 this);
 108
 109         m_parent->DoAddChild( this );
 110
 111         PostCreation(size);
 112         SetInitialSize(size);
 113
 114         // wxWindowGTK will connect to the enter_notify and leave_notify GTK+ signals
 115         // thus overriding GTK+'s internal signal handlers which set the cursor of
 116         // the widget - thus we need to manually set it here:
 117         SetCursor(wxCursor(wxCURSOR_HAND));
 118     }
 119     else
 120         return wxGenericHyperlinkCtrl::Create(parent, id, label, url, pos, size, style, name);
 121
 122     return true;
 123 }
 124
 125 wxSize wxHyperlinkCtrl::DoGetBestSize() const
 126 {
 127     if ( UseNative() )
 128         return wxControl::DoGetBestSize();
 129     return wxGenericHyperlinkCtrl::DoGetBestSize();
 130 }
 131
 132 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 133 {
 134     if ( UseNative() )
 135     {
 136         wxControl::SetLabel(label);
 137         const wxString labelGTK = GTKConvertMnemonics(label);
 138         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 139     }
 140     else
 141         wxGenericHyperlinkCtrl::SetLabel(label);
 142 }
 143
 144 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 145 {
 146     if ( UseNative() )
 147         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 148     else
 149         wxGenericHyperlinkCtrl::SetURL(uri);
 150 }
 151
 152 wxString wxHyperlinkCtrl::GetURL() const
 153 {
 154     if ( UseNative() )
 155     {
 156         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 157         return wxConvFileName->cMB2WX(str);
 158     }
 159
 160     return wxGenericHyperlinkCtrl::GetURL();
 161 }
 162
 163 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 164 {
 165     if ( UseNative() )
 166     {
 167         // simply do nothing: GTK+ does not allow us to change it :(
 168     }
 169     else
 170         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 171 }
 172
 173 wxColour wxHyperlinkCtrl::GetNormalColour() const
 174 {
 175     wxColour ret;
 176     if ( UseNative() )
 177     {
 178         GdkColor *link_color = NULL;
 179
 180         // convert GdkColor in wxColour
 181         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 182         if (link_color)
 183             ret = wxColour(*link_color);
 184         gdk_color_free (link_color);
 185     }
 186     else
 187         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 188
 189     return ret;
 190 }
 191
 192 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 193 {
 194     if ( UseNative() )
 195     {
 196         // simply do nothing: GTK+ does not allow us to change it :(
 197     }
 198     else
 199         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 200 }
 201
 202 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 203 {
 204     wxColour ret;
 205     if ( UseNative() )
 206     {
 207         GdkColor *link_color = NULL;
 208
 209         // convert GdkColor in wxColour
 210         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 211         if (link_color)
 212             ret = wxColour(*link_color);
 213         gdk_color_free (link_color);
 214     }
 215     else
 216         return wxGenericHyperlinkCtrl::GetVisitedColour();
 217
 218     return ret;
 219 }
 220
 221 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 222 {
 223     if ( UseNative() )
 224     {
 225         // simply do nothing: GTK+ does not allow us to change it :(
 226     }
 227     else
 228         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 229 }
 230
 231 wxColour wxHyperlinkCtrl::GetHoverColour() const
 232 {
 233     if ( UseNative() )
 234     {
 235         // hover colour == normal colour for native GTK+ widget
 236         return GetNormalColour();
 237     }
 238
 239     return wxGenericHyperlinkCtrl::GetHoverColour();
 240 }
 241
 242 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 243 {
 244     return UseNative() ? GTK_BUTTON(m_widget)->event_window
 245                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 246 }
 247
 248 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+