[gtk/listview-for-merge: 166/174] column view title: Show sort indicators



commit 6b1c80db007e7efe3a38f3ddb9532e038c7e2c39
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 4 08:52:12 2019 -0500

    column view title: Show sort indicators

 gtk/gtkcolumnviewtitle.c | 74 +++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 70 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkcolumnviewtitle.c b/gtk/gtkcolumnviewtitle.c
index 7170018eb4..306064bcd8 100644
--- a/gtk/gtkcolumnviewtitle.c
+++ b/gtk/gtkcolumnviewtitle.c
@@ -21,10 +21,15 @@
 
 #include "gtkcolumnviewtitleprivate.h"
 
+#include "gtkcolumnviewprivate.h"
 #include "gtkcolumnviewcolumnprivate.h"
+#include "gtkcolumnviewsorterprivate.h"
 #include "gtkintl.h"
 #include "gtklabel.h"
 #include "gtkwidgetprivate.h"
+#include "gtkbox.h"
+#include "gtkimage.h"
+#include "gtkgestureclick.h"
 
 struct _GtkColumnViewTitle
 {
@@ -32,7 +37,9 @@ struct _GtkColumnViewTitle
 
   GtkColumnViewColumn *column;
 
+  GtkWidget *box;
   GtkWidget *title;
+  GtkWidget *sort;
 };
 
 struct _GtkColumnViewTitleClass
@@ -74,7 +81,7 @@ gtk_column_view_title_dispose (GObject *object)
 {
   GtkColumnViewTitle *self = GTK_COLUMN_VIEW_TITLE (object);
 
-  g_clear_pointer(&self->title, gtk_widget_unparent);
+  g_clear_pointer (&self->box, gtk_widget_unparent);
 
   g_clear_object (&self->column);
 
@@ -104,15 +111,47 @@ gtk_column_view_title_resize_func (GtkWidget *widget)
     gtk_column_view_column_queue_resize (self->column);
 }
 
+static void
+click_pressed_cb (GtkGestureClick *gesture,
+                  guint            n_press,
+                  gdouble          x,
+                  gdouble          y,
+                  GtkWidget       *widget)
+{
+  GtkColumnViewTitle *self = GTK_COLUMN_VIEW_TITLE (widget);
+  GtkSorter *sorter;
+  GtkColumnView *view;
+  GtkColumnViewSorter *view_sorter;
+
+  sorter = gtk_column_view_column_get_sorter (self->column);
+  if (sorter == NULL)
+    return;
+
+  view = gtk_column_view_column_get_column_view (self->column);
+  view_sorter = GTK_COLUMN_VIEW_SORTER (gtk_column_view_get_sorter (view));
+  gtk_column_view_sorter_add_column (view_sorter, self->column);
+}
+
 static void
 gtk_column_view_title_init (GtkColumnViewTitle *self)
 {
   GtkWidget *widget = GTK_WIDGET (self);
+  GtkGesture *gesture;
 
   widget->priv->resize_func = gtk_column_view_title_resize_func;
 
+  self->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (self->box, widget);
+
   self->title = gtk_label_new (NULL);
-  gtk_widget_set_parent (self->title, widget);
+  gtk_box_append (GTK_BOX (self->box), self->title);
+
+  self->sort = gtk_image_new ();
+  gtk_box_append (GTK_BOX (self->box), self->sort);
+
+  gesture = gtk_gesture_click_new ();
+  g_signal_connect (gesture, "pressed", G_CALLBACK (click_pressed_cb), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
 }
 
 GtkWidget *
@@ -120,8 +159,7 @@ gtk_column_view_title_new (GtkColumnViewColumn *column)
 {
   GtkColumnViewTitle *title;
 
-  title = g_object_new (GTK_TYPE_COLUMN_VIEW_TITLE,
-                        NULL);
+  title = g_object_new (GTK_TYPE_COLUMN_VIEW_TITLE, NULL);
 
   title->column = g_object_ref (column);
   gtk_column_view_title_update (title);
@@ -132,7 +170,35 @@ gtk_column_view_title_new (GtkColumnViewColumn *column)
 void
 gtk_column_view_title_update (GtkColumnViewTitle *self)
 {
+  GtkSorter *sorter;
+  GtkColumnView *view;
+  GtkColumnViewSorter *view_sorter;
+  gboolean inverted;
+  GtkColumnViewColumn *active;
+
   gtk_label_set_label (GTK_LABEL (self->title), gtk_column_view_column_get_title (self->column));
+
+  sorter = gtk_column_view_column_get_sorter (self->column);
+
+  if (sorter)
+    {
+      view = gtk_column_view_column_get_column_view (self->column);
+      view_sorter = GTK_COLUMN_VIEW_SORTER (gtk_column_view_get_sorter (view));
+      active = gtk_column_view_sorter_get_sort_column (view_sorter, &inverted);
+
+      gtk_widget_show (self->sort);
+      if (self->column == active)
+        {
+          if (inverted)
+            gtk_image_set_from_icon_name (GTK_IMAGE (self->sort), "pan-down-symbolic");
+          else
+            gtk_image_set_from_icon_name (GTK_IMAGE (self->sort), "pan-up-symbolic");
+        }
+      else
+        gtk_image_clear (GTK_IMAGE (self->sort));
+    }
+  else
+    gtk_widget_hide (self->sort);
 }
 
 GtkColumnViewColumn *


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