bockbuild/mac-sdk/patches/gtk/0016-gtk-correctly-handle-toggling-of-the-scrollbar-visib.patch

   1 From 8d10b09aff0bc03c54c2f1899900cc062f36ad4b Mon Sep 17 00:00:00 2001
   2 From: Michael Natterer <mitch@gimp.org>
   3 Date: Thu, 16 Aug 2012 09:35:53 +0200
   4 Subject: [PATCH 16/68] gtk: correctly handle toggling of the scrollbar
   5  visibility setting
   6
   7 By doing most things unconditionally, like connecting to signals
   8 and creating the opacity adjustment. Queue a resize when the
   9 setting changes so things get recalculated properly, and make
  10 sure the scrollbars get expose events if they are visible.
  11 Unrelated: don't leak the priv->opacity adjustment.
  12 ---
  13  gtk/gtkscrolledwindow.c |  244 +++++++++++++++++++++++------------------------
  14  1 file changed, 119 insertions(+), 125 deletions(-)
  15
  16 diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
  17 index 3220e91..7680f5d 100644
  18 --- a/gtk/gtkscrolledwindow.c
  19 +++ b/gtk/gtkscrolledwindow.c
  20 @@ -529,29 +529,25 @@ gtk_scrolled_window_init (GtkScrolledWindow *scrolled_window)
  21                      G_CALLBACK (gtk_scrolled_window_overlay_scrollbars_changed),
  22                      scrolled_window);
  23
  24 -  if (g_getenv ("GTK2_KINETIC_SCROLLING"))
  25 -    {
  26 -      gtk_scrolled_window_set_kinetic_scrolling (scrolled_window, TRUE);
  27 -      gtk_scrolled_window_set_capture_button_press (scrolled_window, TRUE);
  28 -    }
  29 -
  30 -  if (priv->overlay_scrollbars)
  31 -    {
  32 -      priv->opacity = g_object_new (GTK_TYPE_ADJUSTMENT,
  33 -                                    "lower", 0.0,
  34 -                                    "upper", 0.5,
  35 -                                    "value", 0.0,
  36 -                                    NULL);
  37 -      priv->sb_min_height = 20;
  38 -      priv->sb_padding = 2;
  39 -      priv->sb_radius = 3;
  40 -      priv->sb_width = 6;
  41 -      priv->sb_fade_out_delay = 1000;
  42 -
  43 -      g_signal_connect (priv->opacity, "value-changed",
  44 -                        G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
  45 -                        scrolled_window);
  46 -    }
  47 +  gtk_scrolled_window_set_kinetic_scrolling (scrolled_window, TRUE);
  48 +  gtk_scrolled_window_set_capture_button_press (scrolled_window, TRUE);
  49 +
  50 +  priv->opacity = g_object_new (GTK_TYPE_ADJUSTMENT,
  51 +                                "lower", 0.0,
  52 +                                "upper", 0.5,
  53 +                                "value", 0.0,
  54 +                                NULL);
  55 +  g_object_ref_sink (priv->opacity);
  56 +
  57 +  priv->sb_min_height = 20;
  58 +  priv->sb_padding = 2;
  59 +  priv->sb_radius = 3;
  60 +  priv->sb_width = 6;
  61 +  priv->sb_fade_out_delay = 1000;
  62 +
  63 +  g_signal_connect (priv->opacity, "value-changed",
  64 +                    G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
  65 +                    scrolled_window);
  66  }
  67
  68  /**
  69 @@ -632,16 +628,12 @@ gtk_scrolled_window_set_hadjustment (GtkScrolledWindow *scrolled_window,
  70        g_signal_handlers_disconnect_by_func (old_adjustment,
  71                                             gtk_scrolled_window_adjustment_changed,
  72                                             scrolled_window);
  73 -
  74 -      if (priv->overlay_scrollbars)
  75 -        {
  76 -          g_signal_handlers_disconnect_by_func (old_adjustment,
  77 -                                                gtk_scrolled_window_adjustment_value_changed,
  78 -                                                scrolled_window);
  79 -          g_signal_handlers_disconnect_by_func (old_adjustment,
  80 -                                                gtk_scrolled_window_expose_scrollbars,
  81 -                                                scrolled_window);
  82 -        }
  83 +      g_signal_handlers_disconnect_by_func (old_adjustment,
  84 +                                            gtk_scrolled_window_adjustment_value_changed,
  85 +                                            scrolled_window);
  86 +      g_signal_handlers_disconnect_by_func (old_adjustment,
  87 +                                            gtk_scrolled_window_expose_scrollbars,
  88 +                                            scrolled_window);
  89
  90        gtk_range_set_adjustment (GTK_RANGE (scrolled_window->hscrollbar),
  91                                 hadjustment);
  92 @@ -658,19 +650,18 @@ gtk_scrolled_window_set_hadjustment (GtkScrolledWindow *scrolled_window,
  93    gtk_scrolled_window_adjustment_changed (hadjustment, scrolled_window);
  94    gtk_scrolled_window_adjustment_value_changed (hadjustment, scrolled_window);
  95
  96 -  if (priv->overlay_scrollbars)
  97 -    {
  98 -      g_signal_connect (hadjustment, "value-changed",
  99 -                        G_CALLBACK (gtk_scrolled_window_adjustment_value_changed),
 100 -                        scrolled_window);
 101 +#if 0
 102 +  g_signal_connect (hadjustment, "value-changed",
 103 +                    G_CALLBACK (gtk_scrolled_window_adjustment_value_changed),
 104 +                    scrolled_window);
 105 +#endif
 106
 107 -      g_signal_connect (hadjustment, "changed",
 108 -                        G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 109 -                        scrolled_window);
 110 -      g_signal_connect (hadjustment, "value-changed",
 111 -                        G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 112 -                        scrolled_window);
 113 -    }
 114 +  g_signal_connect (hadjustment, "changed",
 115 +                    G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 116 +                    scrolled_window);
 117 +  g_signal_connect (hadjustment, "value-changed",
 118 +                    G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 119 +                    scrolled_window);
 120
 121    if (bin->child)
 122      gtk_widget_set_scroll_adjustments (bin->child,
 123 @@ -725,16 +716,12 @@ gtk_scrolled_window_set_vadjustment (GtkScrolledWindow *scrolled_window,
 124        g_signal_handlers_disconnect_by_func (old_adjustment,
 125                                             gtk_scrolled_window_adjustment_changed,
 126                                             scrolled_window);
 127 -
 128 -      if (priv->overlay_scrollbars)
 129 -        {
 130 -          g_signal_handlers_disconnect_by_func (old_adjustment,
 131 -                                                gtk_scrolled_window_adjustment_value_changed,
 132 -                                                scrolled_window);
 133 -          g_signal_handlers_disconnect_by_func (old_adjustment,
 134 -                                                gtk_scrolled_window_expose_scrollbars,
 135 -                                                scrolled_window);
 136 -        }
 137 +      g_signal_handlers_disconnect_by_func (old_adjustment,
 138 +                                            gtk_scrolled_window_adjustment_value_changed,
 139 +                                            scrolled_window);
 140 +      g_signal_handlers_disconnect_by_func (old_adjustment,
 141 +                                            gtk_scrolled_window_expose_scrollbars,
 142 +                                            scrolled_window);
 143
 144        gtk_range_set_adjustment (GTK_RANGE (scrolled_window->vscrollbar),
 145                                 vadjustment);
 146 @@ -751,20 +738,19 @@ gtk_scrolled_window_set_vadjustment (GtkScrolledWindow *scrolled_window,
 147    gtk_scrolled_window_adjustment_changed (vadjustment, scrolled_window);
 148    gtk_scrolled_window_adjustment_value_changed (vadjustment, scrolled_window);
 149
 150 -  if (priv->overlay_scrollbars)
 151 -    {
 152 -      g_signal_connect (vadjustment,
 153 -                        "value-changed",
 154 -                        G_CALLBACK (gtk_scrolled_window_adjustment_value_changed),
 155 -                        scrolled_window);
 156 +#if 0
 157 +  g_signal_connect (vadjustment,
 158 +                    "value-changed",
 159 +                    G_CALLBACK (gtk_scrolled_window_adjustment_value_changed),
 160 +                    scrolled_window);
 161 +#endif
 162
 163 -      g_signal_connect (vadjustment, "changed",
 164 -                        G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 165 -                        scrolled_window);
 166 -      g_signal_connect (vadjustment, "value-changed",
 167 -                        G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 168 -                        scrolled_window);
 169 -    }
 170 +  g_signal_connect (vadjustment, "changed",
 171 +                    G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 172 +                    scrolled_window);
 173 +  g_signal_connect (vadjustment, "value-changed",
 174 +                    G_CALLBACK (gtk_scrolled_window_expose_scrollbars),
 175 +                    scrolled_window);
 176
 177    if (bin->child)
 178      gtk_widget_set_scroll_adjustments (bin->child,
 179 @@ -1224,16 +1210,12 @@ gtk_scrolled_window_destroy (GtkObject *object)
 180        g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
 181                                             gtk_scrolled_window_adjustment_changed,
 182                                             scrolled_window);
 183 -
 184 -      if (priv->overlay_scrollbars)
 185 -        {
 186 -          g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
 187 -                                                gtk_scrolled_window_adjustment_value_changed,
 188 -                                                scrolled_window);
 189 -          g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
 190 -                                                gtk_scrolled_window_expose_scrollbars,
 191 -                                                scrolled_window);
 192 -        }
 193 +      g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
 194 +                                            gtk_scrolled_window_adjustment_value_changed,
 195 +                                            scrolled_window);
 196 +      g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->hscrollbar)),
 197 +                                            gtk_scrolled_window_expose_scrollbars,
 198 +                                            scrolled_window);
 199
 200        gtk_widget_unparent (scrolled_window->hscrollbar);
 201        gtk_widget_destroy (scrolled_window->hscrollbar);
 202 @@ -1245,16 +1227,12 @@ gtk_scrolled_window_destroy (GtkObject *object)
 203        g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)),
 204                                             gtk_scrolled_window_adjustment_changed,
 205                                             scrolled_window);
 206 -
 207 -      if (priv->overlay_scrollbars)
 208 -        {
 209 -          g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)),
 210 -                                                gtk_scrolled_window_adjustment_value_changed,
 211 -                                                scrolled_window);
 212 -          g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)),
 213 -                                                gtk_scrolled_window_expose_scrollbars,
 214 -                                                scrolled_window);
 215 -        }
 216 +      g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)),
 217 +                                            gtk_scrolled_window_adjustment_value_changed,
 218 +                                            scrolled_window);
 219 +      g_signal_handlers_disconnect_by_func (gtk_range_get_adjustment (GTK_RANGE (scrolled_window->vscrollbar)),
 220 +                                            gtk_scrolled_window_expose_scrollbars,
 221 +                                            scrolled_window);
 222
 223        gtk_widget_unparent (scrolled_window->vscrollbar);
 224        gtk_widget_destroy (scrolled_window->vscrollbar);
 225 @@ -1283,6 +1261,12 @@ gtk_scrolled_window_destroy (GtkObject *object)
 226        priv->button_press_event = NULL;
 227      }
 228
 229 +  if (priv->opacity)
 230 +    {
 231 +      g_object_unref (priv->opacity);
 232 +      priv->opacity = NULL;
 233 +    }
 234 +
 235    GTK_OBJECT_CLASS (gtk_scrolled_window_parent_class)->destroy (object);
 236  }
 237
 238 @@ -1482,11 +1466,23 @@ static gboolean
 239  gtk_scrolled_window_expose (GtkWidget      *widget,
 240                             GdkEventExpose *event)
 241  {
 242 +  GtkScrolledWindow *scrolled_window = GTK_SCROLLED_WINDOW (widget);
 243    GtkScrolledWindowPrivate *priv = GTK_SCROLLED_WINDOW_GET_PRIVATE (widget);
 244
 245    if (gtk_widget_is_drawable (widget))
 246      {
 247 -      if (event->window == priv->overshoot_window)
 248 +      GdkWindow *hscrollbar_window = NULL;
 249 +      GdkWindow *vscrollbar_window = NULL;
 250 +
 251 +      if (scrolled_window->hscrollbar)
 252 +        hscrollbar_window = gtk_widget_get_window (scrolled_window->hscrollbar);
 253 +
 254 +      if (scrolled_window->vscrollbar)
 255 +        vscrollbar_window = gtk_widget_get_window (scrolled_window->vscrollbar);
 256 +
 257 +      if (event->window == priv->overshoot_window ||
 258 +          event->window == hscrollbar_window ||
 259 +          event->window == vscrollbar_window)
 260          GTK_WIDGET_CLASS (gtk_scrolled_window_parent_class)->expose_event (widget, event);
 261        else
 262          gtk_scrolled_window_paint (widget, &event->area);
 263 @@ -1935,8 +1931,7 @@ gtk_scrolled_window_size_allocate (GtkWidget     *widget,
 264    priv = GTK_SCROLLED_WINDOW_GET_PRIVATE (scrolled_window);
 265    bin = GTK_BIN (scrolled_window);
 266
 267 -  if (priv->overlay_scrollbars)
 268 -    gtk_scrolled_window_expose_scrollbars (NULL, scrolled_window);
 269 +  gtk_scrolled_window_expose_scrollbars (NULL, scrolled_window);
 270
 271    scrollbar_spacing = _gtk_scrolled_window_get_scrollbar_spacing (scrolled_window);
 272    gtk_widget_style_get (widget, "scrollbars-within-bevel", &scrollbars_within_bevel, NULL);
 273 @@ -3108,12 +3103,9 @@ gtk_scrolled_window_add (GtkContainer *container,
 274      g_warning ("gtk_scrolled_window_add(): cannot add non scrollable widget "
 275                "use gtk_scrolled_window_add_with_viewport() instead");
 276
 277 -  if (priv->overlay_scrollbars)
 278 -    {
 279 -      g_signal_connect_after (child, "expose-event",
 280 -                              G_CALLBACK (gtk_scrolled_window_child_expose),
 281 -                              container);
 282 -    }
 283 +  g_signal_connect_after (child, "expose-event",
 284 +                          G_CALLBACK (gtk_scrolled_window_child_expose),
 285 +                          container);
 286  }
 287
 288  static void
 289 @@ -3128,12 +3120,9 @@ gtk_scrolled_window_remove (GtkContainer *container,
 290
 291    priv = GTK_SCROLLED_WINDOW_GET_PRIVATE (container);
 292
 293 -  if (priv->overlay_scrollbars)
 294 -    {
 295 -      g_signal_handlers_disconnect_by_func (child,
 296 -                                            gtk_scrolled_window_child_expose,
 297 -                                            container);
 298 -    }
 299 +  g_signal_handlers_disconnect_by_func (child,
 300 +                                        gtk_scrolled_window_child_expose,
 301 +                                        container);
 302
 303    gtk_widget_set_scroll_adjustments (child, NULL, NULL);
 304
 305 @@ -3624,6 +3613,9 @@ gtk_scrolled_window_child_expose (GtkWidget         *widget,
 306     GdkRectangle hslider_rect;
 307     cairo_t   *cr;
 308
 309 +   if (!priv->overlay_scrollbars)
 310 +     return FALSE;
 311 +
 312     cr = gdk_cairo_create (eevent->window);
 313     gdk_cairo_region (cr, eevent->region);
 314     cairo_clip (cr);
 315 @@ -3769,27 +3761,32 @@ static void
 316  gtk_scrolled_window_expose_scrollbars (GtkAdjustment     *adj,
 317                                         GtkScrolledWindow *scrolled_window)
 318  {
 319 -  GtkWidget *child = gtk_bin_get_child (GTK_BIN (scrolled_window));
 320 +  GtkScrolledWindowPrivate *priv = GTK_SCROLLED_WINDOW_GET_PRIVATE (scrolled_window);
 321
 322 -  if (child && gtk_widget_get_visible (child))
 323 +  if (priv->overlay_scrollbars)
 324      {
 325 -      GtkAllocation alloc;
 326 -
 327 -      gtk_widget_get_allocation (child, &alloc);
 328 -
 329 -      if (scrolled_window->vscrollbar)
 330 -        gtk_widget_queue_draw_area (child,
 331 -                                    alloc.width - 20,
 332 -                                    0,
 333 -                                    20,
 334 -                                    alloc.height);
 335 +      GtkWidget *child = gtk_bin_get_child (GTK_BIN (scrolled_window));
 336
 337 -      if (scrolled_window->hscrollbar)
 338 -        gtk_widget_queue_draw_area (child,
 339 -                                    0,
 340 -                                    alloc.height - 20,
 341 -                                    alloc.width,
 342 -                                    20);
 343 +      if (child && gtk_widget_get_visible (child))
 344 +        {
 345 +          GtkAllocation alloc;
 346 +
 347 +          gtk_widget_get_allocation (child, &alloc);
 348 +
 349 +          if (scrolled_window->vscrollbar)
 350 +            gtk_widget_queue_draw_area (child,
 351 +                                        alloc.width - 20,
 352 +                                        0,
 353 +                                        20,
 354 +                                        alloc.height);
 355 +
 356 +          if (scrolled_window->hscrollbar)
 357 +            gtk_widget_queue_draw_area (child,
 358 +                                        0,
 359 +                                        alloc.height - 20,
 360 +                                        alloc.width,
 361 +                                        20);
 362 +        }
 363      }
 364  }
 365
 366 @@ -3798,17 +3795,14 @@ gtk_scrolled_window_overlay_scrollbars_changed (GtkSettings *settings,
 367                                                  GParamSpec  *arg,
 368                                                  gpointer     user_data)
 369  {
 370 -  GtkScrolledWindow *scrolled_window = GTK_SCROLLED_WINDOW (user_data);
 371    GtkScrolledWindowPrivate *priv = GTK_SCROLLED_WINDOW_GET_PRIVATE (user_data);
 372
 373 -  /* FIXME: tear down/set up things to make the switch */
 374 -
 375    g_object_get (settings,
 376                  "gtk-enable-overlay-scrollbars",
 377                  &priv->overlay_scrollbars,
 378                  NULL);
 379
 380 -  g_print ("enable-overlay-scrollbar is now: %d\n", priv->overlay_scrollbars);
 381 +  gtk_widget_queue_resize (user_data);
 382  }
 383
 384  #define __GTK_SCROLLED_WINDOW_C__
 385 --
 386 1.7.10.2 (Apple Git-33)