[gthumb] adjust colors: removed unused variable

[Paolo Bacchilega <paobac src gnome org>]

commit 78e9ff4a16f16db623bf68f8a3e422f519a4fb5b
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Sep 21 13:06:50 2013 +0200

    adjust colors: removed unused variable

 .../file_tools/gth-file-tool-adjust-colors.c       |   18 +++++++-----------
 1 files changed, 7 insertions(+), 11 deletions(-)
---
diff --git a/extensions/file_tools/gth-file-tool-adjust-colors.c 
b/extensions/file_tools/gth-file-tool-adjust-colors.c
index 312b31c..0b57937 100644
--- a/extensions/file_tools/gth-file-tool-adjust-colors.c
+++ b/extensions/file_tools/gth-file-tool-adjust-colors.c
@@ -35,7 +35,6 @@ G_DEFINE_TYPE (GthFileToolAdjustColors, gth_file_tool_adjust_colors, GTH_TYPE_FI
 
 
 struct _GthFileToolAdjustColorsPrivate {
-       cairo_surface_t    *source;
        cairo_surface_t    *destination;
        cairo_surface_t    *preview;
        GtkBuilder         *builder;
@@ -427,6 +426,7 @@ gth_file_tool_adjust_colors_get_options (GthFileTool *base)
        GtkWidget               *window;
        GtkWidget               *viewer_page;
        GtkWidget               *viewer;
+       cairo_surface_t         *source;
        GtkWidget               *options;
        int                      width, height;
        GtkAllocation            allocation;
@@ -438,22 +438,21 @@ gth_file_tool_adjust_colors_get_options (GthFileTool *base)
        if (! GTH_IS_IMAGE_VIEWER_PAGE (viewer_page))
                return NULL;
 
-       cairo_surface_destroy (self->priv->source);
        cairo_surface_destroy (self->priv->destination);
        cairo_surface_destroy (self->priv->preview);
 
        viewer = gth_image_viewer_page_get_image_viewer (GTH_IMAGE_VIEWER_PAGE (viewer_page));
-       self->priv->source = cairo_surface_reference (gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER 
(viewer)));
-       if (self->priv->source == NULL)
+       source = gth_image_viewer_get_current_image (GTH_IMAGE_VIEWER (viewer));
+       if (source == NULL)
                return NULL;
 
-       width = cairo_image_surface_get_width (self->priv->source);
-       height = cairo_image_surface_get_height (self->priv->source);
+       width = cairo_image_surface_get_width (source);
+       height = cairo_image_surface_get_height (source);
        gtk_widget_get_allocation (GTK_WIDGET (viewer), &allocation);
        if (scale_keeping_ratio (&width, &height, PREVIEW_SIZE * allocation.width, PREVIEW_SIZE * 
allocation.height, FALSE))
-               self->priv->preview = _cairo_image_surface_scale_bilinear (self->priv->source, width, height);
+               self->priv->preview = _cairo_image_surface_scale_bilinear (source, width, height);
        else
-               self->priv->preview = cairo_surface_reference (self->priv->source);
+               self->priv->preview = cairo_surface_reference (source);
 
        self->priv->destination = cairo_surface_reference (self->priv->preview);
        self->priv->apply_to_original = FALSE;
@@ -572,7 +571,6 @@ gth_file_tool_adjust_colors_destroy_options (GthFileTool *base)
        gth_viewer_page_update_sensitivity (GTH_VIEWER_PAGE (viewer_page));
 
        _cairo_clear_surface (&self->priv->preview);
-       _cairo_clear_surface (&self->priv->source);
        _cairo_clear_surface (&self->priv->destination);
        _g_clear_object (&self->priv->builder);
 }
@@ -614,7 +612,6 @@ gth_file_tool_adjust_colors_init (GthFileToolAdjustColors *self)
        self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GTH_TYPE_FILE_TOOL_ADJUST_COLORS, 
GthFileToolAdjustColorsPrivate);
        self->priv->histogram = gth_histogram_new ();
        self->priv->preview = NULL;
-       self->priv->source = NULL;
        self->priv->destination = NULL;
        self->priv->builder = NULL;
 
@@ -634,7 +631,6 @@ gth_file_tool_adjust_colors_finalize (GObject *object)
        self = (GthFileToolAdjustColors *) object;
 
        cairo_surface_destroy (self->priv->preview);
-       cairo_surface_destroy (self->priv->source);
        cairo_surface_destroy (self->priv->destination);
        _g_object_unref (self->priv->builder);
        _g_object_unref (self->priv->histogram);