kernelshark: Add methods to change the parent window gui

Add trace_set_cursor() and trace_put_cursor() to set and unset
the cursor of the parent window.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2 files changed, 35 insertions, 0 deletions

diff --git a/trace-dialog.c b/trace-dialog.c
index c585277..53e75d5 100644
--- a/trace-dialog.c
+++ b/trace-dialog.c
@@ -38,6 +38,7 @@ static GtkWidget *statuspix;
 static GString *statusstr;
 
 static GtkWidget *parent_window;
+static GdkCursor *parent_cursor;
 
 static void (*alt_warning)(const char *fmt, va_list ap);
 
@@ -88,6 +89,37 @@ void trace_dialog_register_window(GtkWidget *window)
         parent_window = window;
 }
 
+void trace_set_cursor(GdkCursorType type)
+{
+        GdkWindow *window = GTK_WIDGET(parent_window)->window;
+        GdkCursor *cursor;
+
+        if (!parent_cursor)
+                parent_cursor = gdk_window_get_cursor(window);
+        else {
+                /* destroy the old one */
+                cursor = gdk_window_get_cursor(window);
+                if (cursor && cursor != parent_cursor)
+                        gdk_cursor_unref(cursor);
+        }
+        
+        cursor = gdk_cursor_new(type);
+        if (!cursor)
+                die("Can't create cursor");
+        gdk_window_set_cursor(window, cursor);
+}
+
+void trace_put_cursor(void)
+{
+        GdkWindow *window = GTK_WIDGET(parent_window)->window;
+        GdkCursor *cursor;
+        
+        cursor = gdk_window_get_cursor(window);
+        if (cursor && cursor != parent_cursor)
+                gdk_cursor_unref(cursor);
+        gdk_window_set_cursor(window, parent_cursor);
+}
+
 /**
  * trace_dialog_register_alt_warning - register an alternate function for warning()
  * @alt: the function to be called instead of warning.
diff --git a/trace-gui.h b/trace-gui.h
index 6766f9d..c55940e 100644
--- a/trace-gui.h
+++ b/trace-gui.h
@@ -52,6 +52,9 @@ gchar *trace_get_file_dialog_filter(const gchar *title, const char *open,
 gchar *trace_get_file_dialog(const gchar *title, const char *open,
                              gboolean warn);
 
+void trace_set_cursor(GdkCursorType type);
+void trace_put_cursor(void);
+
 GtkWidget *
 trace_create_combo_box(GtkWidget *hbox, const gchar *text,
                        GtkTreeModel *(*combo_model_create)(gpointer data),