stylecontext: Deprecate functions

- gtk_style_context_get_background_color()
- gtk_style_context_get_border_color()

Those functions shouldn't be used anymore, because they don't represent
anything from the CSS styling we support. The background color often
isn't used due to background images and there are actually 4 different
border colors (1 for each side) - if there isn't also a border image in
use.

gtk/gtkcolorswatch.c

@@ -206,8 +206,10 @@ swatch_draw (GtkWidget *widget,
         }
       else
         {
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
           gtk_style_context_get_background_color (context, state, &bg);
           gtk_style_context_get_border_color (context, state, &border);
+G_GNUC_END_IGNORE_DEPRECATIONS
           gtk_style_context_get_border (context, state, &border_width);
 
           cairo_new_sub_path (cr);

gtk/gtkentry.c

@@ -6422,7 +6422,9 @@ draw_text_with_color (GtkEntry *entry,
       state = gtk_widget_get_state_flags (widget);
       state |= GTK_STATE_FLAG_SELECTED;
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
       gtk_style_context_get_background_color (context, state, &selection_color);
+G_GNUC_END_IGNORE_DEPRECATIONS
       gtk_style_context_get_color (context, state, &text_color);
 
       for (i = 0; i < n_ranges; ++i)
@@ -6594,7 +6596,9 @@ gtk_entry_draw_cursor (GtkEntry  *entry,
           GdkRGBA color;
 
           state = gtk_widget_get_state_flags (widget);
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
           gtk_style_context_get_background_color (context, state, &color);
+G_GNUC_END_IGNORE_DEPRECATIONS
 
           gdk_cairo_rectangle (cr, &rect);
           cairo_clip (cr);

gtk/gtkflowbox.c

@@ -2614,7 +2614,9 @@ gtk_flow_box_draw (GtkWidget *widget,
           cairo_path_destroy (path);
 
           state = gtk_widget_get_state_flags (widget);
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
           gtk_style_context_get_border_color (context, state, &border_color);
+G_GNUC_END_IGNORE_DEPRECATIONS
           gtk_style_context_get_border (context, state, &border);
 
           cairo_set_line_width (cr, border.left);

gtk/gtkpopover.c

@@ -898,7 +898,9 @@ gtk_popover_draw (GtkWidget *widget,
   /* Render the border of the arrow tip */
   if (border.bottom > 0)
     {
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
       gtk_style_context_get_border_color (context, state, &border_color);
+G_GNUC_END_IGNORE_DEPRECATIONS
       gtk_popover_apply_tail_path (popover, cr);
       gdk_cairo_set_source_rgba (cr, &border_color);
 

gtk/gtkstylecontext.c

@@ -3499,7 +3499,9 @@ G_GNUC_END_IGNORE_DEPRECATIONS
       {
         GdkRGBA bg;
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
         gtk_style_context_get_background_color (context, GTK_STATE_FLAG_NORMAL, &bg);
+G_GNUC_END_IGNORE_DEPRECATIONS
 
         color->red = (color->red + bg.red) * 0.5;
         color->green = (color->green + bg.green) * 0.5;
@@ -3890,7 +3892,9 @@ _gtk_style_context_get_attributes (AtkAttributeSet *attributes,
   GdkRGBA color;
   gchar *value;
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
   gtk_style_context_get_background_color (context, flags, &color);
+G_GNUC_END_IGNORE_DEPRECATIONS
   value = g_strdup_printf ("%u,%u,%u",
                            (guint) ceil (color.red * 65536 - color.red),
                            (guint) ceil (color.green * 65536 - color.green),

gtk/gtkstylecontext.h

@@ -1083,11 +1083,11 @@ GDK_AVAILABLE_IN_ALL
 void gtk_style_context_get_color            (GtkStyleContext *context,
                                              GtkStateFlags    state,
                                              GdkRGBA         *color);
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_3_16_FOR(gtk_render_background)
 void gtk_style_context_get_background_color (GtkStyleContext *context,
                                              GtkStateFlags    state,
                                              GdkRGBA         *color);
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_3_16_FOR(gtk_render_frame)
 void gtk_style_context_get_border_color     (GtkStyleContext *context,
                                              GtkStateFlags    state,
                                              GdkRGBA         *color);

gtk/gtktextdisplay.c

@@ -591,7 +591,9 @@ render_para (GtkTextRenderer    *text_renderer,
 
   state |= GTK_STATE_FLAG_SELECTED;
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
   gtk_style_context_get_background_color (context, state, &selection);
+G_GNUC_END_IGNORE_DEPRECATIONS
 
   do
     {
@@ -783,7 +785,9 @@ render_para (GtkTextRenderer    *text_renderer,
                   GdkRGBA color;
 
                   state = gtk_widget_get_state_flags (text_renderer->widget);
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
                   gtk_style_context_get_background_color (context, state, &color);
+G_GNUC_END_IGNORE_DEPRECATIONS
 
                   gdk_cairo_set_source_rgba (cr, &color);
 

gtk/gtktextutil.c

@@ -270,7 +270,9 @@ gtk_text_view_set_attributes_from_style (GtkTextView        *text_view,
   context = gtk_widget_get_style_context (GTK_WIDGET (text_view));
   state = gtk_widget_get_state_flags (GTK_WIDGET (text_view));
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
   gtk_style_context_get_background_color (context, state, &bg_color);
+G_GNUC_END_IGNORE_DEPRECATIONS
   gtk_style_context_get_color (context, state, &fg_color);
 
   values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535);

gtk/gtktextview.c

@@ -7259,7 +7259,9 @@ gtk_text_view_set_attributes_from_style (GtkTextView        *text_view,
   gtk_style_context_save (context);
   gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
 
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
   gtk_style_context_get_background_color (context, state, &bg_color);
+G_GNUC_END_IGNORE_DEPRECATIONS
   gtk_style_context_get_color (context, state, &fg_color);
 
   values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535);