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 // ----------------------------------------------------------------------------
  51 // "clicked"
  52 // ----------------------------------------------------------------------------
  53
  54 extern "C" {
  55 static void gtk_hyperlink_clicked_callback( GtkWidget *WXUNUSED(widget),
  56                                             wxHyperlinkCtrl *linkCtrl )
  57 {
  58     // send the event
  59     linkCtrl->SendEvent();
  60 }
  61 }
  62
  63 // ----------------------------------------------------------------------------
  64 // wxHyperlinkCtrl
  65 // ----------------------------------------------------------------------------
  66
  67 bool wxHyperlinkCtrl::Create(wxWindow *parent, wxWindowID id,
  68     const wxString& label, const wxString& url, const wxPoint& pos,
  69     const wxSize& size, long style, const wxString& name)
  70 {
  71     if ( UseNative() )
  72     {
  73         // do validation checks:
  74         CheckParams(label, url, style);
  75
  76         if (!PreCreation( parent, pos, size ) ||
  77             !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  78         {
  79             wxFAIL_MSG( wxT("wxHyperlinkCtrl creation failed") );
  80             return false;
  81         }
  82
  83         m_widget = gtk_link_button_new("asdfsaf asdfdsaf asdfdsa");
  84         g_object_ref(m_widget);
  85         gtk_widget_show(m_widget);
  86
  87         // alignment
  88         float x_alignment = 0.5;
  89         if (HasFlag(wxHL_ALIGN_LEFT))
  90             x_alignment = 0.0;
  91         else if (HasFlag(wxHL_ALIGN_RIGHT))
  92             x_alignment = 1.0;
  93         gtk_button_set_alignment(GTK_BUTTON(m_widget), x_alignment, 0.5);
  94
  95         // set to non empty strings both the url and the label
  96         SetURL(url.empty() ? label : url);
  97         SetLabel(label.empty() ? url : label);
  98
  99         // our signal handlers:
 100         g_signal_connect_after (m_widget, "clicked",
 101                                 G_CALLBACK (gtk_hyperlink_clicked_callback),
 102                                 this);
 103
 104         m_parent->DoAddChild( this );
 105
 106         PostCreation(size);
 107
 108         // wxWindowGTK will connect to the enter_notify and leave_notify GTK+ signals
 109         // thus overriding GTK+'s internal signal handlers which set the cursor of
 110         // the widget - thus we need to manually set it here:
 111         SetCursor(wxCursor(wxCURSOR_HAND));
 112     }
 113     else
 114         return wxGenericHyperlinkCtrl::Create(parent, id, label, url, pos, size, style, name);
 115
 116     return true;
 117 }
 118
 119 wxSize wxHyperlinkCtrl::DoGetBestSize() const
 120 {
 121     if ( UseNative() )
 122         return wxControl::DoGetBestSize();
 123     return wxGenericHyperlinkCtrl::DoGetBestSize();
 124 }
 125
 126 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 127 {
 128     if ( UseNative() )
 129     {
 130         wxControl::SetLabel(label);
 131         const wxString labelGTK = GTKConvertMnemonics(label);
 132         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 133     }
 134     else
 135         wxGenericHyperlinkCtrl::SetLabel(label);
 136 }
 137
 138 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 139 {
 140     if ( UseNative() )
 141         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 142     else
 143         wxGenericHyperlinkCtrl::SetURL(uri);
 144 }
 145
 146 wxString wxHyperlinkCtrl::GetURL() const
 147 {
 148     if ( UseNative() )
 149     {
 150         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 151         return wxString::FromUTF8(str);
 152     }
 153
 154     return wxGenericHyperlinkCtrl::GetURL();
 155 }
 156
 157 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 158 {
 159     if ( UseNative() )
 160     {
 161         // simply do nothing: GTK+ does not allow us to change it :(
 162     }
 163     else
 164         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 165 }
 166
 167 wxColour wxHyperlinkCtrl::GetNormalColour() const
 168 {
 169     wxColour ret;
 170     if ( UseNative() )
 171     {
 172         GdkColor *link_color = NULL;
 173
 174         // convert GdkColor in wxColour
 175         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 176         if (link_color)
 177             ret = wxColour(*link_color);
 178         gdk_color_free (link_color);
 179     }
 180     else
 181         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 182
 183     return ret;
 184 }
 185
 186 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 187 {
 188     if ( UseNative() )
 189     {
 190         // simply do nothing: GTK+ does not allow us to change it :(
 191     }
 192     else
 193         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 194 }
 195
 196 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 197 {
 198     wxColour ret;
 199     if ( UseNative() )
 200     {
 201         GdkColor *link_color = NULL;
 202
 203         // convert GdkColor in wxColour
 204         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 205         if (link_color)
 206             ret = wxColour(*link_color);
 207         gdk_color_free (link_color);
 208     }
 209     else
 210         return wxGenericHyperlinkCtrl::GetVisitedColour();
 211
 212     return ret;
 213 }
 214
 215 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 216 {
 217     if ( UseNative() )
 218     {
 219         // simply do nothing: GTK+ does not allow us to change it :(
 220     }
 221     else
 222         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 223 }
 224
 225 wxColour wxHyperlinkCtrl::GetHoverColour() const
 226 {
 227     if ( UseNative() )
 228     {
 229         // hover colour == normal colour for native GTK+ widget
 230         return GetNormalColour();
 231     }
 232
 233     return wxGenericHyperlinkCtrl::GetHoverColour();
 234 }
 235
 236 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 237 {
 238     return UseNative() ? GTK_BUTTON(m_widget)->event_window
 239                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 240 }
 241
 242 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+