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 wxSize wxHyperlinkCtrl::DoGetBestClientSize() const
 127 {
 128     if ( UseNative() )
 129         return wxControl::DoGetBestClientSize();
 130     return wxGenericHyperlinkCtrl::DoGetBestClientSize();
 131 }
 132
 133 void wxHyperlinkCtrl::SetLabel(const wxString &label)
 134 {
 135     if ( UseNative() )
 136     {
 137         wxControl::SetLabel(label);
 138         const wxString labelGTK = GTKConvertMnemonics(label);
 139         gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 140     }
 141     else
 142         wxGenericHyperlinkCtrl::SetLabel(label);
 143 }
 144
 145 void wxHyperlinkCtrl::SetURL(const wxString &uri)
 146 {
 147     if ( UseNative() )
 148         gtk_link_button_set_uri(GTK_LINK_BUTTON(m_widget), wxGTK_CONV(uri));
 149     else
 150         wxGenericHyperlinkCtrl::SetURL(uri);
 151 }
 152
 153 wxString wxHyperlinkCtrl::GetURL() const
 154 {
 155     if ( UseNative() )
 156     {
 157         const gchar *str = gtk_link_button_get_uri(GTK_LINK_BUTTON(m_widget));
 158         return wxString::FromUTF8(str);
 159     }
 160
 161     return wxGenericHyperlinkCtrl::GetURL();
 162 }
 163
 164 void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
 165 {
 166     if ( UseNative() )
 167     {
 168         // simply do nothing: GTK+ does not allow us to change it :(
 169     }
 170     else
 171         wxGenericHyperlinkCtrl::SetNormalColour(colour);
 172 }
 173
 174 wxColour wxHyperlinkCtrl::GetNormalColour() const
 175 {
 176     wxColour ret;
 177     if ( UseNative() )
 178     {
 179         GdkColor *link_color = NULL;
 180
 181         // convert GdkColor in wxColour
 182         gtk_widget_style_get(m_widget, "link-color", &link_color, NULL);
 183         if (link_color)
 184             ret = wxColour(*link_color);
 185         gdk_color_free (link_color);
 186     }
 187     else
 188         ret = wxGenericHyperlinkCtrl::GetNormalColour();
 189
 190     return ret;
 191 }
 192
 193 void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
 194 {
 195     if ( UseNative() )
 196     {
 197         // simply do nothing: GTK+ does not allow us to change it :(
 198     }
 199     else
 200         wxGenericHyperlinkCtrl::SetVisitedColour(colour);
 201 }
 202
 203 wxColour wxHyperlinkCtrl::GetVisitedColour() const
 204 {
 205     wxColour ret;
 206     if ( UseNative() )
 207     {
 208         GdkColor *link_color = NULL;
 209
 210         // convert GdkColor in wxColour
 211         gtk_widget_style_get(m_widget, "visited-link-color", &link_color, NULL);
 212         if (link_color)
 213             ret = wxColour(*link_color);
 214         gdk_color_free (link_color);
 215     }
 216     else
 217         return wxGenericHyperlinkCtrl::GetVisitedColour();
 218
 219     return ret;
 220 }
 221
 222 void wxHyperlinkCtrl::SetHoverColour(const wxColour &colour)
 223 {
 224     if ( UseNative() )
 225     {
 226         // simply do nothing: GTK+ does not allow us to change it :(
 227     }
 228     else
 229         wxGenericHyperlinkCtrl::SetHoverColour(colour);
 230 }
 231
 232 wxColour wxHyperlinkCtrl::GetHoverColour() const
 233 {
 234     if ( UseNative() )
 235     {
 236         // hover colour == normal colour for native GTK+ widget
 237         return GetNormalColour();
 238     }
 239
 240     return wxGenericHyperlinkCtrl::GetHoverColour();
 241 }
 242
 243 GdkWindow *wxHyperlinkCtrl::GTKGetWindow(wxArrayGdkWindows& windows) const
 244 {
 245     return UseNative() ? GTK_BUTTON(m_widget)->event_window
 246                        : wxGenericHyperlinkCtrl::GTKGetWindow(windows);
 247 }
 248
 249 #endif // wxUSE_HYPERLINKCTRL && GTK+ 2.10+