browser.c

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#include "../evlist.h"
#include "../cache.h"
#include "../evsel.h"
#include "../sort.h"
#include "../hist.h"
#include "../helpline.h"
#include "gtk.h"

#include <signal.h>

#define MAX_COLUMNS         32

static void perf_gtk__signal(int sig)
{
    perf_gtk__exit(false);
    psignal(sig, "perf");
}

static void perf_gtk__resize_window(GtkWidget *window)
{
    GdkRectangle rect;
    GdkScreen *screen;
    int monitor;
    int height;
    int width;

    screen = gtk_widget_get_screen(window);

    monitor = gdk_screen_get_monitor_at_window(screen, window->window);

    gdk_screen_get_monitor_geometry(screen, monitor, &rect);

    width   = rect.width * 3 / 4;
    height  = rect.height * 3 / 4;

    gtk_window_resize(GTK_WINDOW(window), width, height);
}

static const char *perf_gtk__get_percent_color(double percent)
{
    if (percent >= MIN_RED)
        return "<span fgcolor='red'>";
    if (percent >= MIN_GREEN)
        return "<span fgcolor='dark green'>";
    return NULL;
}

#define HPP__COLOR_FN(_name, _field)                        \
static int perf_gtk__hpp_color_ ## _name(struct perf_hpp *hpp,          \
                     struct hist_entry *he)         \
{                                       \
    struct hists *hists = he->hists;                    \
    double percent = 100.0 * he->stat._field / hists->stats.total_period;   \
    const char *markup;                         \
    int ret = 0;                                \
                                        \
    markup = perf_gtk__get_percent_color(percent);              \
    if (markup)                             \
        ret += scnprintf(hpp->buf, hpp->size, "%s", markup);        \
    ret += scnprintf(hpp->buf + ret, hpp->size - ret, "%6.2f%%", percent);  \
    if (markup)                             \
        ret += scnprintf(hpp->buf + ret, hpp->size - ret, "</span>");   \
                                        \
    return ret;                             \
}

HPP__COLOR_FN(overhead, period)
HPP__COLOR_FN(overhead_sys, period_sys)
HPP__COLOR_FN(overhead_us, period_us)
HPP__COLOR_FN(overhead_guest_sys, period_guest_sys)
HPP__COLOR_FN(overhead_guest_us, period_guest_us)

#undef HPP__COLOR_FN

void perf_gtk__init_hpp(void)
{
    perf_hpp__init();

    perf_hpp__format[PERF_HPP__OVERHEAD].color =
                perf_gtk__hpp_color_overhead;
    perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
                perf_gtk__hpp_color_overhead_sys;
    perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
                perf_gtk__hpp_color_overhead_us;
    perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
                perf_gtk__hpp_color_overhead_guest_sys;
    perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
                perf_gtk__hpp_color_overhead_guest_us;
}

static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
{
    GType col_types[MAX_COLUMNS];
    GtkCellRenderer *renderer;
    struct sort_entry *se;
    GtkListStore *store;
    struct rb_node *nd;
    GtkWidget *view;
    int i, col_idx;
    int nr_cols;
    char s[512];

    struct perf_hpp hpp = {
        .buf        = s,
        .size       = sizeof(s),
    };

    nr_cols = 0;

    for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
        if (!perf_hpp__format[i].cond)
            continue;

        col_types[nr_cols++] = G_TYPE_STRING;
    }

    list_for_each_entry(se, &hist_entry__sort_list, list) {
        if (se->elide)
            continue;

        col_types[nr_cols++] = G_TYPE_STRING;
    }

    store = gtk_list_store_newv(nr_cols, col_types);

    view = gtk_tree_view_new();

    renderer = gtk_cell_renderer_text_new();

    col_idx = 0;

    for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
        if (!perf_hpp__format[i].cond)
            continue;

        perf_hpp__format[i].header(&hpp);

        gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
                                -1, s,
                                renderer, "markup",
                                col_idx++, NULL);
    }

    list_for_each_entry(se, &hist_entry__sort_list, list) {
        if (se->elide)
            continue;

        gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
                                -1, se->se_header,
                                renderer, "text",
                                col_idx++, NULL);
    }

    gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store));

    g_object_unref(GTK_TREE_MODEL(store));

    for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
        struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
        GtkTreeIter iter;

        if (h->filtered)
            continue;

        gtk_list_store_append(store, &iter);

        col_idx = 0;

        for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
            if (!perf_hpp__format[i].cond)
                continue;

            if (perf_hpp__format[i].color)
                perf_hpp__format[i].color(&hpp, h);
            else
                perf_hpp__format[i].entry(&hpp, h);

            gtk_list_store_set(store, &iter, col_idx++, s, -1);
        }

        list_for_each_entry(se, &hist_entry__sort_list, list) {
            if (se->elide)
                continue;

            se->se_snprintf(h, s, ARRAY_SIZE(s),
                    hists__col_len(hists, se->se_width_idx));

            gtk_list_store_set(store, &iter, col_idx++, s, -1);
        }
    }

    gtk_container_add(GTK_CONTAINER(window), view);
}

#ifdef HAVE_GTK_INFO_BAR
static GtkWidget *perf_gtk__setup_info_bar(void)
{
    GtkWidget *info_bar;
    GtkWidget *label;
    GtkWidget *content_area;

    info_bar = gtk_info_bar_new();
    gtk_widget_set_no_show_all(info_bar, TRUE);

    label = gtk_label_new("");
    gtk_widget_show(label);

    content_area = gtk_info_bar_get_content_area(GTK_INFO_BAR(info_bar));
    gtk_container_add(GTK_CONTAINER(content_area), label);

    gtk_info_bar_add_button(GTK_INFO_BAR(info_bar), GTK_STOCK_OK,
                GTK_RESPONSE_OK);
    g_signal_connect(info_bar, "response",
             G_CALLBACK(gtk_widget_hide), NULL);

    pgctx->info_bar = info_bar;
    pgctx->message_label = label;

    return info_bar;
}
#endif

static GtkWidget *perf_gtk__setup_statusbar(void)
{
    GtkWidget *stbar;
    unsigned ctxid;

    stbar = gtk_statusbar_new();

    ctxid = gtk_statusbar_get_context_id(GTK_STATUSBAR(stbar),
                         "perf report");
    pgctx->statbar = stbar;
    pgctx->statbar_ctx_id = ctxid;

    return stbar;
}

int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                  const char *help,
                  void (*timer) (void *arg)__maybe_unused,
                  void *arg __maybe_unused,
                  int delay_secs __maybe_unused)
{
    struct perf_evsel *pos;
    GtkWidget *vbox;
    GtkWidget *notebook;
    GtkWidget *info_bar;
    GtkWidget *statbar;
    GtkWidget *window;

    signal(SIGSEGV, perf_gtk__signal);
    signal(SIGFPE,  perf_gtk__signal);
    signal(SIGINT,  perf_gtk__signal);
    signal(SIGQUIT, perf_gtk__signal);
    signal(SIGTERM, perf_gtk__signal);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    gtk_window_set_title(GTK_WINDOW(window), "perf report");

    g_signal_connect(window, "delete_event", gtk_main_quit, NULL);

    pgctx = perf_gtk__activate_context(window);
    if (!pgctx)
        return -1;

    vbox = gtk_vbox_new(FALSE, 0);

    notebook = gtk_notebook_new();

    list_for_each_entry(pos, &evlist->entries, node) {
        struct hists *hists = &pos->hists;
        const char *evname = perf_evsel__name(pos);
        GtkWidget *scrolled_window;
        GtkWidget *tab_label;

        scrolled_window = gtk_scrolled_window_new(NULL, NULL);

        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
                            GTK_POLICY_AUTOMATIC,
                            GTK_POLICY_AUTOMATIC);

        perf_gtk__show_hists(scrolled_window, hists);

        tab_label = gtk_label_new(evname);

        gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
    }

    gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);

    info_bar = perf_gtk__setup_info_bar();
    if (info_bar)
        gtk_box_pack_start(GTK_BOX(vbox), info_bar, FALSE, FALSE, 0);

    statbar = perf_gtk__setup_statusbar();
    gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);

    gtk_container_add(GTK_CONTAINER(window), vbox);

    gtk_widget_show_all(window);

    perf_gtk__resize_window(window);

    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

    ui_helpline__push(help);

    gtk_main();

    perf_gtk__deactivate_context(&pgctx);

    return 0;
}