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Subject[PATCH 4/6] perf ui: Separate showing the entries from running the browser
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

Another patch eroding the changes I had to move to a tree widget that
doesn't requires adding all entries in an existing list/tree structure
to a generic tree widget, but instead allows traversing just the entries
that should appear on the screen on a given moment.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/newt.c | 60 +++++++++++++++++++++++------------------------
1 files changed, 29 insertions(+), 31 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 0ffc828..9fa5b20 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -328,6 +328,32 @@ static void ui_browser__reset_index(struct ui_browser *self)
self->seek(self, 0, SEEK_SET);
}

+static int ui_browser__show(struct ui_browser *self, const char *title)
+{
+ if (self->form != NULL)
+ return 0;
+ ui_browser__refresh_dimensions(self);
+ newtCenteredWindow(self->width + 2, self->height, title);
+ self->form = newt_form__new();
+ if (self->form == NULL)
+ return -1;
+
+ self->sb = newtVerticalScrollbar(self->width + 1, 0, self->height,
+ HE_COLORSET_NORMAL,
+ HE_COLORSET_SELECTED);
+ if (self->sb == NULL)
+ return -1;
+
+ newtFormAddHotKey(self->form, NEWT_KEY_UP);
+ newtFormAddHotKey(self->form, NEWT_KEY_DOWN);
+ newtFormAddHotKey(self->form, NEWT_KEY_PGUP);
+ newtFormAddHotKey(self->form, NEWT_KEY_PGDN);
+ newtFormAddHotKey(self->form, NEWT_KEY_HOME);
+ newtFormAddHotKey(self->form, NEWT_KEY_END);
+ newtFormAddComponent(self->form, self->sb);
+ return 0;
+}
+
static int objdump_line__show(struct objdump_line *self, struct list_head *head,
int width, struct hist_entry *he, int len,
bool current_entry)
@@ -406,39 +432,10 @@ static int ui_browser__refresh_entries(struct ui_browser *self)
return 0;
}

-static int ui_browser__run(struct ui_browser *self, const char *title,
- struct newtExitStruct *es)
+static int ui_browser__run(struct ui_browser *self, struct newtExitStruct *es)
{
- if (self->form) {
- newtFormDestroy(self->form);
- newtPopWindow();
- }
-
- ui_browser__refresh_dimensions(self);
- newtCenteredWindow(self->width + 2, self->height, title);
- self->form = newt_form__new();
- if (self->form == NULL)
- return -1;
-
- self->sb = newtVerticalScrollbar(self->width + 1, 0, self->height,
- HE_COLORSET_NORMAL,
- HE_COLORSET_SELECTED);
- if (self->sb == NULL)
- return -1;
-
- newtFormAddHotKey(self->form, NEWT_KEY_UP);
- newtFormAddHotKey(self->form, NEWT_KEY_DOWN);
- newtFormAddHotKey(self->form, NEWT_KEY_PGUP);
- newtFormAddHotKey(self->form, NEWT_KEY_PGDN);
- newtFormAddHotKey(self->form, ' ');
- newtFormAddHotKey(self->form, NEWT_KEY_HOME);
- newtFormAddHotKey(self->form, NEWT_KEY_END);
- newtFormAddHotKey(self->form, NEWT_KEY_TAB);
- newtFormAddHotKey(self->form, NEWT_KEY_RIGHT);
-
if (ui_browser__refresh_entries(self) < 0)
return -1;
- newtFormAddComponent(self->form, self->sb);

while (1) {
off_t offset;
@@ -733,7 +730,8 @@ int hist_entry__tui_annotate(struct hist_entry *self)
}

browser.width += 18; /* Percentage */
- ret = ui_browser__run(&browser, self->ms.sym->name, &es);
+ ui_browser__show(&browser, self->ms.sym->name);
+ ui_browser__run(&browser, &es);
newtFormDestroy(browser.form);
newtPopWindow();
list_for_each_entry_safe(pos, n, &head, node) {
--
1.6.2.5
--
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