perf ui gtk: Implement ui_progress functions

Implement progress update function for GTK2 front end.

Note that since it will be called before gtk main loop so that we should
call gtk event loop handler directly.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1352813436-14173-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 54 insertions, 0 deletions

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f8466b49b922..5a9075ea218e 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -648,6 +648,7 @@ ifndef NO_GTK2
                 LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/util.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
+                LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
                 # Make sure that it'd be included only once.
                 ifeq ($(findstring -DNEWT_SUPPORT,$(BASIC_CFLAGS)),)
                         LIB_OBJS += $(OUTPUT)ui/setup.o
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 687af0bba187..856320e2cc05 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -30,6 +30,7 @@ struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window);
 int perf_gtk__deactivate_context(struct perf_gtk_context **ctx);
 
 void perf_gtk__init_helpline(void);
+void perf_gtk__init_progress(void);
 void perf_gtk__init_hpp(void);
 
 #ifndef HAVE_GTK_INFO_BAR
diff --git a/tools/perf/ui/gtk/progress.c b/tools/perf/ui/gtk/progress.c
new file mode 100644
index 000000000000..903426fe27cf
--- /dev/null
+++ b/tools/perf/ui/gtk/progress.c
@@ -0,0 +1,50 @@
+#include <inttypes.h>
+
+#include "gtk.h"
+#include "../progress.h"
+#include "util.h"
+
+static GtkWidget *dialog;
+static GtkWidget *progress;
+
+static void gtk_progress_update(u64 curr, u64 total, const char *title)
+{
+        double fraction = total ? 1.0 * curr / total : 0.0;
+        char buf[1024];
+
+        if (dialog == NULL) {
+                GtkWidget *vbox = gtk_vbox_new(TRUE, 5);
+                GtkWidget *label = gtk_label_new(title);
+
+                dialog = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+                progress = gtk_progress_bar_new();
+
+                gtk_box_pack_start(GTK_BOX(vbox), label, TRUE, FALSE, 3);
+                gtk_box_pack_start(GTK_BOX(vbox), progress, TRUE, TRUE, 3);
+
+                gtk_container_add(GTK_CONTAINER(dialog), vbox);
+
+                gtk_window_set_title(GTK_WINDOW(dialog), "perf");
+                gtk_window_resize(GTK_WINDOW(dialog), 300, 80);
+                gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
+
+                gtk_widget_show_all(dialog);
+        }
+
+        gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progress), fraction);
+        snprintf(buf, sizeof(buf), "%"PRIu64" / %"PRIu64, curr, total);
+        gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), buf);
+
+        /* we didn't call gtk_main yet, so do it manually */
+        while (gtk_events_pending())
+                gtk_main_iteration();
+}
+
+static struct ui_progress gtk_progress_fns = {
+        .update         = gtk_progress_update,
+};
+
+void perf_gtk__init_progress(void)
+{
+        progress_fns = &gtk_progress_fns;
+}
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 3c4c6ef78283..6c2dd2e423f3 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -8,7 +8,9 @@ int perf_gtk__init(void)
 {
         perf_error__register(&perf_gtk_eops);
         perf_gtk__init_helpline();
+        perf_gtk__init_progress();
         perf_gtk__init_hpp();
+
         return gtk_init_check(NULL, NULL) ? 0 : -1;
 }