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         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         gtk_widget_show(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         SetInitialSize(size);
 110
 111         // wxWindowGTK will connect to the enter_notify and leave_notify GTK+ signals
 112         // thus overriding GTK+'s internal signal handlers which set the cursor of
 113         // the widget - thus we need to manually set it here:
 114         SetCursor(wxCursor(wxCURSOR_HAND));
 115     }
 116     else
 117         return wxGenericHyperlinkCtrl::Create(parent, id, label, url, pos, size, style, name);
 118
 119     return true;
 120 }
 121
 122 wxSize wxHyperlinkCtrl::DoGetBestSize() const
 123 {
 124     if ( UseNative() )
 125         return wxControl::DoGetBestSize();
 126     return wxGenericHyperlinkCtrl::DoGetBestSize();
 127 }
 128
 129 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 130 {
 131     if ( UseNative() )
 132     {
 133         wxControl::SetLabel(label);
 134         const wxString labelGTK = GTKConvertMnemonics(label);
 135         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 136     }
 137     else
 138         wxGenericHyperlinkCtrl::SetLabel(label);
 139 }
 140
 141 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 142 {
 143     if ( UseNative() )
 144         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 145     else
 146         wxGenericHyperlinkCtrl::SetURL(uri);
 147 }
 148
 149 wxString wxHyperlinkCtrl::GetURL() const
 150 {
 151     if ( UseNative() )
 152     {
 153         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 154         return wxConvFileName->cMB2WX(str);
 155     }
 156
 157     return wxGenericHyperlinkCtrl::GetURL();
 158 }
 159
 160 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 161 {
 162     if ( UseNative() )
 163     {
 164         // simply do nothing: GTK+ does not allow us to change it :(
 165     }
 166     else
 167         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 168 }
 169
 170 wxColour wxHyperlinkCtrl::GetNormalColour() const
 171 {
 172     wxColour ret;
 173     if ( UseNative() )
 174     {
 175         GdkColor *link_color = NULL;
 176
 177         // convert GdkColor in wxColour
 178         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 179         if (link_color)
 180             ret = wxColour(*link_color);
 181         gdk_color_free (link_color);
 182     }
 183     else
 184         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 185
 186     return ret;
 187 }
 188
 189 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 190 {
 191     if ( UseNative() )
 192     {
 193         // simply do nothing: GTK+ does not allow us to change it :(
 194     }
 195     else
 196         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 197 }
 198
 199 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 200 {
 201     wxColour ret;
 202     if ( UseNative() )
 203     {
 204         GdkColor *link_color = NULL;
 205
 206         // convert GdkColor in wxColour
 207         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 208         if (link_color)
 209             ret = wxColour(*link_color);
 210         gdk_color_free (link_color);
 211     }
 212     else
 213         return wxGenericHyperlinkCtrl::GetVisitedColour();
 214
 215     return ret;
 216 }
 217
 218 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 219 {
 220     if ( UseNative() )
 221     {
 222         // simply do nothing: GTK+ does not allow us to change it :(
 223     }
 224     else
 225         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 226 }
 227
 228 wxColour wxHyperlinkCtrl::GetHoverColour() const
 229 {
 230     if ( UseNative() )
 231     {
 232         // hover colour == normal colour for native GTK+ widget
 233         return GetNormalColour();
 234     }
 235
 236     return wxGenericHyperlinkCtrl::GetHoverColour();
 237 }
 238
 239 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 240 {
 241     return UseNative() ? GTK_BUTTON(m_widget)->event_window
 242                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 243 }
 244
 245 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+