src/gtk/control.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/control.cpp
   3 // Purpose:     wxControl implementation for wxGTK
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_CONTROLS
  14
  15 #include "wx/control.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/settings.h"
  20 #endif
  21
  22 #include "wx/fontutil.h"
  23 #include "wx/gtk/private.h"
  24 #include "wx/utils.h"
  25 #include "wx/sysopt.h"
  26
  27 #include "wx/gtk/private/mnemonics.h"
  28
  29 // ============================================================================
  30 // wxControl implementation
  31 // ============================================================================
  32
  33 // ----------------------------------------------------------------------------
  34 // wxControl creation
  35 // ----------------------------------------------------------------------------
  36
  37 IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
  38
  39 wxControl::wxControl()
  40 {
  41 }
  42
  43 bool wxControl::Create( wxWindow *parent,
  44                       wxWindowID id,
  45                       const wxPoint &pos,
  46                       const wxSize &size,
  47                       long style,
  48                       const wxValidator& validator,
  49                       const wxString &name )
  50 {
  51     bool ret = wxWindow::Create(parent, id, pos, size, style, name);
  52
  53 #if wxUSE_VALIDATORS
  54     SetValidator(validator);
  55 #endif
  56
  57     return ret;
  58 }
  59
  60 wxSize wxControl::DoGetBestSize() const
  61 {
  62     // Do not return any arbitrary default value...
  63     wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
  64
  65     wxSize best;
  66     if (m_wxwindow)
  67     {
  68         // this is not a native control, size_request is likely to be (0,0)
  69         best = wxControlBase::DoGetBestSize();
  70     }
  71     else
  72     {
  73         GtkRequisition req;
  74         GTK_WIDGET_GET_CLASS(m_widget)->size_request(m_widget, &req);
  75         best.Set(req.width, req.height);
  76     }
  77     CacheBestSize(best);
  78     return best;
  79 }
  80
  81 void wxControl::PostCreation(const wxSize& size)
  82 {
  83     wxWindow::PostCreation();
  84
  85     // NB: GetBestSize needs to know the style, otherwise it will assume
  86     //     default font and if the user uses a different font, determined
  87     //     best size will be different (typically, smaller) than the desired
  88     //     size. This call ensure that a style is available at the time
  89     //     GetBestSize is called.
  90     gtk_widget_ensure_style(m_widget);
  91
  92     GTKApplyWidgetStyle();
  93     SetInitialSize(size);
  94 }
  95
  96 // ----------------------------------------------------------------------------
  97 // Work around a GTK+ bug whereby button is insensitive after being
  98 // enabled
  99 // ----------------------------------------------------------------------------
 100
 101 // Fix sensitivity due to bug in GTK+ < 2.14
 102 void wxControl::GTKFixSensitivity(bool onlyIfUnderMouse)
 103 {
 104     if (gtk_check_version(2,14,0)
 105 #if wxUSE_SYSTEM_OPTIONS
 106         && (wxSystemOptions::GetOptionInt(wxT("gtk.control.disable-sensitivity-fix")) != 1)
 107 #endif
 108         )
 109     {
 110         wxPoint pt = wxGetMousePosition();
 111         wxRect rect(ClientToScreen(wxPoint(0, 0)), GetSize());
 112         if (!onlyIfUnderMouse || rect.Contains(pt))
 113         {
 114             Hide();
 115             Show();
 116         }
 117     }
 118 }
 119
 120 // ----------------------------------------------------------------------------
 121 // wxControl dealing with labels
 122 // ----------------------------------------------------------------------------
 123
 124 void wxControl::GTKSetLabelForLabel(GtkLabel *w, const wxString& label)
 125 {
 126     const wxString labelGTK = GTKConvertMnemonics(label);
 127     gtk_label_set_text_with_mnemonic(w, wxGTK_CONV(labelGTK));
 128 }
 129
 130 void wxControl::GTKSetLabelWithMarkupForLabel(GtkLabel *w, const wxString& label)
 131 {
 132     const wxString labelGTK = GTKConvertMnemonicsWithMarkup(label);
 133     gtk_label_set_markup_with_mnemonic(w, wxGTK_CONV(labelGTK));
 134 }
 135
 136
 137 // ----------------------------------------------------------------------------
 138 // GtkFrame helpers
 139 //
 140 // GtkFrames do in fact support mnemonics in GTK2+ but not through
 141 // gtk_frame_set_label, rather you need to use a custom label widget
 142 // instead (idea gleaned from the native gtk font dialog code in GTK)
 143 // ----------------------------------------------------------------------------
 144
 145 GtkWidget* wxControl::GTKCreateFrame(const wxString& label)
 146 {
 147     const wxString labelGTK = GTKConvertMnemonics(label);
 148     GtkWidget* labelwidget = gtk_label_new_with_mnemonic(wxGTK_CONV(labelGTK));
 149     gtk_widget_show(labelwidget); // without this it won't show...
 150
 151     GtkWidget* framewidget = gtk_frame_new(NULL);
 152     gtk_frame_set_label_widget(GTK_FRAME(framewidget), labelwidget);
 153
 154     return framewidget; // note that the label is already set so you'll
 155                         // only need to call wxControl::SetLabel afterwards
 156 }
 157
 158 void wxControl::GTKSetLabelForFrame(GtkFrame *w, const wxString& label)
 159 {
 160     wxControlBase::SetLabel(label);
 161
 162     GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w));
 163     GTKSetLabelForLabel(labelwidget, label);
 164 }
 165
 166 void wxControl::GTKFrameApplyWidgetStyle(GtkFrame* w, GtkRcStyle* style)
 167 {
 168     gtk_widget_modify_style(GTK_WIDGET(w), style);
 169     gtk_widget_modify_style(gtk_frame_get_label_widget (w), style);
 170 }
 171
 172 void wxControl::GTKFrameSetMnemonicWidget(GtkFrame* w, GtkWidget* widget)
 173 {
 174     GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w));
 175
 176     gtk_label_set_mnemonic_widget(labelwidget, widget);
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // worker function implementing GTK*Mnemonics() functions
 181 // ----------------------------------------------------------------------------
 182
 183 /* static */
 184 wxString wxControl::GTKRemoveMnemonics(const wxString& label)
 185 {
 186     return wxGTKRemoveMnemonics(label);
 187 }
 188
 189 /* static */
 190 wxString wxControl::GTKConvertMnemonics(const wxString& label)
 191 {
 192     return wxConvertMnemonicsToGTK(label);
 193 }
 194
 195 /* static */
 196 wxString wxControl::GTKConvertMnemonicsWithMarkup(const wxString& label)
 197 {
 198     return wxConvertMnemonicsToGTKMarkup(label);
 199 }
 200
 201 // ----------------------------------------------------------------------------
 202 // wxControl styles (a.k.a. attributes)
 203 // ----------------------------------------------------------------------------
 204
 205 wxVisualAttributes wxControl::GetDefaultAttributes() const
 206 {
 207     return GetDefaultAttributesFromGTKWidget(m_widget,
 208                                              UseGTKStyleBase());
 209 }
 210
 211 // static
 212 wxVisualAttributes
 213 wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,
 214                                              bool useBase,
 215                                              int state)
 216 {
 217     GtkStyle* style;
 218     wxVisualAttributes attr;
 219
 220     style = gtk_rc_get_style(widget);
 221     if (!style)
 222         style = gtk_widget_get_default_style();
 223
 224     if (!style)
 225     {
 226         return wxWindow::GetClassDefaultAttributes(wxWINDOW_VARIANT_NORMAL);
 227     }
 228
 229     if (state == -1)
 230         state = GTK_STATE_NORMAL;
 231
 232     // get the style's colours
 233     attr.colFg = wxColour(style->fg[state]);
 234     if (useBase)
 235         attr.colBg = wxColour(style->base[state]);
 236     else
 237         attr.colBg = wxColour(style->bg[state]);
 238
 239     // get the style's font
 240     if ( !style->font_desc )
 241         style = gtk_widget_get_default_style();
 242     if ( style && style->font_desc )
 243     {
 244         wxNativeFontInfo info;
 245         info.description = pango_font_description_copy(style->font_desc);
 246         attr.font = wxFont(info);
 247     }
 248     else
 249     {
 250         GtkSettings *settings = gtk_settings_get_default();
 251         gchar *font_name = NULL;
 252         g_object_get ( settings,
 253                        "gtk-font-name",
 254                        &font_name,
 255                        NULL);
 256         if (!font_name)
 257             attr.font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
 258         else
 259             attr.font = wxFont(wxString::FromAscii(font_name));
 260         g_free (font_name);
 261     }
 262
 263     return attr;
 264 }
 265
 266
 267 //static
 268 wxVisualAttributes
 269 wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNew_t widget_new,
 270                                              bool useBase,
 271                                              int state)
 272 {
 273     wxVisualAttributes attr;
 274     // NB: we need toplevel window so that GTK+ can find the right style
 275     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 276     GtkWidget* widget = widget_new();
 277     gtk_container_add(GTK_CONTAINER(wnd), widget);
 278     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
 279     gtk_widget_destroy(wnd);
 280     return attr;
 281 }
 282
 283 //static
 284 wxVisualAttributes
 285 wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromStr_t widget_new,
 286                                              bool useBase,
 287                                              int state)
 288 {
 289     wxVisualAttributes attr;
 290     // NB: we need toplevel window so that GTK+ can find the right style
 291     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 292     GtkWidget* widget = widget_new("");
 293     gtk_container_add(GTK_CONTAINER(wnd), widget);
 294     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
 295     gtk_widget_destroy(wnd);
 296     return attr;
 297 }
 298
 299
 300 //static
 301 wxVisualAttributes
 302 wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromAdj_t widget_new,
 303                                              bool useBase,
 304                                              int state)
 305 {
 306     wxVisualAttributes attr;
 307     // NB: we need toplevel window so that GTK+ can find the right style
 308     GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 309     GtkWidget* widget = widget_new(NULL);
 310     gtk_container_add(GTK_CONTAINER(wnd), widget);
 311     attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
 312     gtk_widget_destroy(wnd);
 313     return attr;
 314 }
 315
 316 #endif // wxUSE_CONTROLS