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