nixpkgs/pkgs/os-specific/linux/xsensors/replace-deprecated-gtk.patch

Author: Nanley Chery <nanleychery@gmail.com>
Subject: Update deprecated gtk casts and replace deprecated function calls with their analogous cairo counterparts.
Bug-Debian: http://bugs.debian.org/622005
Bug-Debian: http://bugs.debian.org/610321
---
--- a/src/gui.c
+++ b/src/gui.c
@@ -27,10 +27,10 @@
 GtkWidget *mainwindow = NULL;
 
 GdkColor colorWhite = { 0, 0xFFFF, 0xFFFF, 0xFFFF };
-    
-GdkColormap *cmap = NULL;
 
-GdkPixmap *theme = NULL;
+GdkPixbuf *theme = NULL;
+
+cairo_surface_t *surface = NULL;
 
 /* Destroy the main window. */
 gint destroy_gui( GtkWidget *widget, gpointer data ) {
@@ -76,17 +76,16 @@
     }
 }
 
-static void draw_digits( GtkWidget *widget, const gchar *digits, int highLow )
+static void draw_digits( GtkWidget *widget, cairo_t *cr, const gchar *digits, int highLow )
 {
     const gchar *digit = digits;
     int pos = 0, x = 0, y = 0, w = 0;
 
     while ( *digit ) {
         get_pm_location( *digit, &x, &y, &w );
-        gdk_draw_drawable( widget->window,
-                           widget->style->fg_gc[ GTK_WIDGET_STATE
-                           (widget) ], theme, x, y + highLow,
-                           pos, 0, w, 30 );
+        cairo_set_source_surface (cr, surface, pos-x, 0-(y + highLow));
+		cairo_rectangle(cr, pos, 0, w, 30);
+		cairo_fill(cr);
         pos += w;
         digit++;
     }
@@ -102,6 +101,8 @@
 
     gchar result[7];
 
+    cairo_t *cr = gdk_cairo_create(widget->window);
+
 #ifdef DEBUG_XSENSORS
     printf( "area.width = %d, area.height = %d\n", event->area.width,
             event->area.height );
@@ -117,13 +118,11 @@
 
             /* Display the digits */
             if ( g_snprintf( result, 6, "%5.0f", current->curvalue ) >= 0 )
-               draw_digits( widget, result, highLow );
+               draw_digits( widget, cr, result, highLow );
 
             /* Display RPM */
-            gdk_draw_drawable( widget->window, 
-                               widget->style->fg_gc[ GTK_WIDGET_STATE 
-                               (widget) ], theme, 0, 120 + highLow, 
-                               90, 0, 57, 30 );
+            cairo_set_source_surface (cr, surface, 90-0, 0-(120 + highLow));
+     	    cairo_rectangle(cr, 90, 0, 57, 30);
             break;
         case TEMP:
             if ( current->curvalue > current->curmax )
@@ -134,17 +133,15 @@
 
             /* Display the digits */
             if ( g_snprintf( result, 7, "%6.1f", current->curvalue ) >= 0 )
-               draw_digits( widget, result, highLow );
+               draw_digits( widget, cr, result, highLow );
 
             /* Display degree symbol */
             if ( tf == FALSE )
                 x = 0;
             else
                 x = 57;
-            gdk_draw_drawable( widget->window, 
-                             widget->style->fg_gc[ GTK_WIDGET_STATE 
-                             (widget) ], theme, x, 60 + highLow, 
-                             96, 0, 57, 30 );
+            cairo_set_source_surface (cr, surface, 96-x, 0-(60 + highLow));
+     	    cairo_rectangle(cr, 96, 0, 57, 30);
             
             break;
         case VOLT:
@@ -154,20 +151,17 @@
             
             /* Display the digits */
             if ( g_snprintf( result, 7, "%6.2f", current->curvalue ) >= 0 )
-               draw_digits( widget, result, highLow );
+               draw_digits( widget, cr, result, highLow );
 
             /* Display V */
-            gdk_draw_drawable( widget->window, 
-                             widget->style->fg_gc[ GTK_WIDGET_STATE 
-                             (widget) ], theme, 114, 60 + highLow, 
-                             96, 0, 57, 30 );
-
-
+            cairo_set_source_surface (cr, surface, 96-114, 0-(60 + highLow));
+     	    cairo_rectangle(cr, 96, 0, 57, 30);
             break;
         default:
             break;
     }
-            
+    cairo_fill(cr);
+    cairo_destroy(cr);
     return TRUE;
 }
 
@@ -260,7 +254,7 @@
 
     /* Setup timer for updates. */
     g_timeout_add( update_time * 1000,
-                             (GtkFunction) update_sensor_data, 
+                             (GSourceFunc) update_sensor_data,
 			     (gpointer) data );
 
     return SUCCESS;
@@ -460,8 +454,6 @@
     g_signal_connect( G_OBJECT (mainwindow), "delete_event",
                       G_CALLBACK (destroy_gui), NULL );
 
-    /* Graphics needed for drawing info. */
-    cmap = gtk_widget_get_colormap( mainwindow );
 
     /* Set up the image file used for displaying characters. */
     if ( imagefile == NULL ) {
@@ -481,12 +473,10 @@
                        "Image file not found in either location!  Exiting!\n" );
                 exit( 1 );
             } else {
-                theme = gdk_pixmap_colormap_create_from_xpm( NULL, cmap,
-                        NULL, NULL, "./images/default.xpm" );
+                theme = gdk_pixbuf_new_from_file("./images/default.xpm", NULL );
             }
         } else {
-            theme = gdk_pixmap_colormap_create_from_xpm( NULL, cmap,
-                    NULL, NULL, imagefile );
+            theme = gdk_pixbuf_new_from_file(imagefile, NULL );
         }
     } else {
         if ( stat( imagefile, &sbuf ) != 0 ) {
@@ -495,11 +485,15 @@
                     "Image file not found in specified location!  Exiting!\n" );
             exit( 1 );
         } else {
-            theme = gdk_pixmap_colormap_create_from_xpm( NULL, cmap,
-                    NULL, NULL, imagefile );
+            theme = gdk_pixbuf_new_from_file(imagefile, NULL );
         }
     }
-    
+    surface = cairo_image_surface_create_for_data(gdk_pixbuf_get_pixels(theme),
+                                        CAIRO_FORMAT_RGB24,
+										gdk_pixbuf_get_width(theme),
+										gdk_pixbuf_get_height(theme),
+										gdk_pixbuf_get_rowstride(theme));
+
     /* Create notebook for sensors. */
     notebook = gtk_notebook_new( );
     gtk_widget_modify_bg( notebook, GTK_STATE_NORMAL, &colorWhite );