libs/clearlooks-newer/widget-information.c

   1 #include <gtk/gtk.h>
   2
   3 #include "general-support.h"
   4 #include "widget-information.h"
   5 #include <math.h>
   6 #include <string.h>
   7
   8 /* Widget Type Lookups/Macros
   9
  10    Based on/modified from functions in
  11    Smooth-Engine.
  12 */
  13 gboolean
  14 ge_object_is_a (const GObject * object, const gchar * type_name)
  15 {
  16   gboolean result = FALSE;
  17
  18   if ((object))
  19     {
  20       GType tmp = g_type_from_name (type_name);
  21
  22       if (tmp)
  23         result = g_type_check_instance_is_a ((GTypeInstance *) object, tmp);
  24     }
  25
  26   return result;
  27 }
  28
  29 gboolean
  30 ge_is_combo_box_entry (GtkWidget * widget)
  31 {
  32   gboolean result = FALSE;
  33
  34   if ((widget) && (widget->parent))
  35     {
  36       if (GE_IS_COMBO_BOX_ENTRY (widget->parent))
  37         result = TRUE;
  38       else
  39         result = ge_is_combo_box_entry (widget->parent);
  40     }
  41   return result;
  42 }
  43
  44 static gboolean
  45 ge_combo_box_is_using_list (GtkWidget * widget)
  46 {
  47   gboolean result = FALSE;
  48
  49   if (GE_IS_COMBO_BOX (widget))
  50     {
  51       gboolean *tmp = NULL;
  52
  53       gtk_widget_style_get (widget, "appears-as-list", &result, NULL);
  54
  55       if (tmp)
  56         result = *tmp;
  57     }
  58
  59   return result;
  60 }
  61
  62 gboolean
  63 ge_is_combo_box (GtkWidget * widget, gboolean as_list)
  64 {
  65   gboolean result = FALSE;
  66
  67   if ((widget) && (widget->parent))
  68     {
  69       if (GE_IS_COMBO_BOX (widget->parent))
  70         {
  71           if (as_list)
  72             result = (ge_combo_box_is_using_list(widget->parent));
  73           else
  74             result = (!ge_combo_box_is_using_list(widget->parent));
  75         }
  76       else
  77         result = ge_is_combo_box (widget->parent, as_list);
  78     }
  79   return result;
  80 }
  81
  82 gboolean
  83 ge_is_combo (GtkWidget * widget)
  84 {
  85   gboolean result = FALSE;
  86
  87   if ((widget) && (widget->parent))
  88     {
  89       if (GE_IS_COMBO (widget->parent))
  90         result = TRUE;
  91       else
  92         result = ge_is_combo (widget->parent);
  93     }
  94   return result;
  95 }
  96
  97 gboolean
  98 ge_is_in_combo_box (GtkWidget * widget)
  99 {
 100   return ((ge_is_combo (widget) || ge_is_combo_box (widget, TRUE) || ge_is_combo_box_entry (widget)));
 101 }
 102
 103 gboolean
 104 ge_is_toolbar_item (GtkWidget * widget)
 105 {
 106   gboolean result = FALSE;
 107
 108   if ((widget) && (widget->parent)) {
 109     if ((GE_IS_BONOBO_TOOLBAR (widget->parent))
 110         || (GE_IS_BONOBO_DOCK_ITEM (widget->parent))
 111         || (GE_IS_EGG_TOOLBAR (widget->parent))
 112         || (GE_IS_TOOLBAR (widget->parent))
 113         || (GE_IS_HANDLE_BOX (widget->parent)))
 114       result = TRUE;
 115     else
 116       result = ge_is_toolbar_item (widget->parent);
 117   }
 118   return result;
 119 }
 120
 121 gboolean
 122 ge_is_panel_widget_item (GtkWidget * widget)
 123 {
 124   gboolean result = FALSE;
 125
 126   if ((widget) && (widget->parent))
 127     {
 128       if (GE_IS_PANEL_WIDGET (widget->parent))
 129         result = TRUE;
 130       else
 131         result = ge_is_panel_widget_item (widget->parent);
 132     }
 133   return result;
 134 }
 135
 136 gboolean
 137 ge_is_bonobo_dock_item (GtkWidget * widget)
 138 {
 139   gboolean result = FALSE;
 140
 141   if ((widget))
 142     {
 143       if (GE_IS_BONOBO_DOCK_ITEM(widget) || GE_IS_BONOBO_DOCK_ITEM (widget->parent))
 144         result = TRUE;
 145       else if (GE_IS_BOX(widget) || GE_IS_BOX(widget->parent))
 146         {
 147           GtkContainer *box = GE_IS_BOX(widget)?GTK_CONTAINER(widget):GTK_CONTAINER(widget->parent);
 148           GList *children = NULL, *child = NULL;
 149
 150           children = gtk_container_get_children(box);
 151
 152           for (child = g_list_first(children); child; child = g_list_next(child))
 153             {
 154               if (GE_IS_BONOBO_DOCK_ITEM_GRIP(child->data))
 155                 {
 156                   result = TRUE;
 157                   child = NULL;
 158                 }
 159             }
 160
 161           if (children)
 162             g_list_free(children);
 163         }
 164     }
 165   return result;
 166 }
 167
 168 static GtkWidget *
 169 ge_find_combo_box_entry_widget (GtkWidget * widget)
 170 {
 171   GtkWidget *result = NULL;
 172
 173   if (widget)
 174     {
 175       if (GE_IS_COMBO_BOX_ENTRY (widget))
 176         result = widget;
 177       else
 178         result = ge_find_combo_box_entry_widget (widget->parent);
 179     }
 180
 181   return result;
 182 }
 183
 184 static GtkWidget *
 185 ge_find_combo_box_widget (GtkWidget * widget, gboolean as_list)
 186 {
 187   GtkWidget *result = NULL;
 188
 189   if (widget)
 190     {
 191       if (GE_IS_COMBO_BOX (widget))
 192         {
 193           if (as_list)
 194             result = (ge_combo_box_is_using_list(widget))?widget:NULL;
 195           else
 196             result = (!ge_combo_box_is_using_list(widget))?widget:NULL;
 197         }
 198       else
 199         result = ge_find_combo_box_widget (widget->parent, as_list);
 200     }
 201   return result;
 202 }
 203
 204 static GtkWidget *
 205 ge_find_combo_widget (GtkWidget * widget)
 206 {
 207   GtkWidget *result = NULL;
 208
 209   if (widget)
 210     {
 211       if (GE_IS_COMBO (widget))
 212         result = widget;
 213       else
 214         result = ge_find_combo_widget(widget->parent);
 215     }
 216   return result;
 217 }
 218
 219 GtkWidget*
 220 ge_find_combo_box_widget_parent (GtkWidget * widget)
 221 {
 222    GtkWidget *result = NULL;
 223
 224    if (!result)
 225      result = ge_find_combo_widget(widget);
 226
 227    if (!result)
 228      result = ge_find_combo_box_widget(widget, TRUE);
 229
 230    if (!result)
 231      result = ge_find_combo_box_entry_widget(widget);
 232
 233   return result;
 234 }
 235
 236 /***********************************************
 237  * option_menu_get_props -
 238  *
 239  *   Find Option Menu Size and Spacing
 240  *
 241  *   Taken from Smooth
 242  ***********************************************/
 243 void
 244 ge_option_menu_get_props (GtkWidget * widget,
 245                        GtkRequisition * indicator_size,
 246                        GtkBorder * indicator_spacing)
 247 {
 248   GtkRequisition default_size = { 9, 5 };
 249   GtkBorder default_spacing = { 7, 5, 2, 2 };
 250   GtkRequisition *tmp_size = NULL;
 251   GtkBorder *tmp_spacing = NULL;
 252
 253   if ((widget) && GE_IS_OPTION_MENU(widget))
 254     gtk_widget_style_get (widget,
 255                           "indicator_size", &tmp_size,
 256                           "indicator_spacing", &tmp_spacing, NULL);
 257
 258   if (tmp_size)
 259     {
 260       *indicator_size = *tmp_size;
 261       gtk_requisition_free (tmp_size);
 262     }
 263   else
 264     *indicator_size = default_size;
 265
 266   if (tmp_spacing)
 267     {
 268       *indicator_spacing = *tmp_spacing;
 269       gtk_border_free (tmp_spacing);
 270     }
 271   else
 272     *indicator_spacing = default_spacing;
 273 }
 274
 275 void
 276 ge_button_get_default_border (GtkWidget *widget,
 277                               GtkBorder *border)
 278 {
 279         GtkBorder default_border = {1, 1, 1, 1};
 280         GtkBorder *tmp_border = NULL;
 281
 282         if (widget && GE_IS_BUTTON (widget))
 283                 gtk_widget_style_get (widget, "default-border", &tmp_border, NULL);
 284
 285         if (tmp_border)
 286         {
 287                 *border = *tmp_border;
 288                 gtk_border_free (tmp_border);
 289         }
 290         else
 291         {
 292                 *border = default_border;
 293         }
 294 }
 295
 296
 297 gboolean
 298 ge_widget_is_ltr (GtkWidget *widget)
 299 {
 300         GtkTextDirection dir = GTK_TEXT_DIR_NONE;
 301
 302         if (GE_IS_WIDGET (widget))
 303                 dir = gtk_widget_get_direction (widget);
 304
 305         if (dir == GTK_TEXT_DIR_NONE)
 306                 dir = gtk_widget_get_default_direction ();
 307
 308         if (dir == GTK_TEXT_DIR_RTL)
 309                 return FALSE;
 310         else
 311                 return TRUE;
 312 }