1 files changed, 425 insertions, 0 deletions
diff --git a/multiload/load-graph.c b/multiload/load-graph.c
new file mode 100644
index 00000000..9b294f33
--- /dev/null
+++ b/multiload/load-graph.c
@@ -0,0 +1,425 @@
+#include <config.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <signal.h>
+#include <dirent.h>
+#include <string.h>
+#include <time.h>
+#include <glib.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+#include <mate-panel-applet.h>
+#include <mate-panel-applet-mateconf.h>
+
+#include "global.h"
+
+
+/*
+ Shifts data right
+
+ data[i+1] = data[i]
+
+ data[i] are int*, so we just move the pointer, not the data.
+ But moving data loses data[n-1], so we save data[n-1] and reuse
+ it as new data[0]. In fact, we rotate data[].
+
+*/
+
+static void
+shift_right(LoadGraph *g)
+{
+ unsigned i;
+ int* last_data;
+
+ /* data[g->draw_width - 1] becomes data[0] */
+ last_data = g->data[g->draw_width - 1];
+
+ /* data[i+1] = data[i] */
+ for(i = g->draw_width - 1; i != 0; --i)
+ g->data[i] = g->data[i-1];
+
+ g->data[0] = last_data;
+}
+
+
+/* Redraws the backing pixmap for the load graph and updates the window */
+static void
+load_graph_draw (LoadGraph *g)
+{
+ GtkStyle *style;
+ guint i, j;
+
+ /* we might get called before the configure event so that
+ * g->disp->allocation may not have the correct size
+ * (after the user resized the applet in the prop dialog). */
+
+ if (!g->pixmap)
+ g->pixmap = gdk_pixmap_new (gtk_widget_get_window (g->disp),
+ g->draw_width, g->draw_height,
+ gtk_widget_get_visual (g->disp)->depth);
+ 
+ style = gtk_widget_get_style (g->disp);
+
+ /* Create GC if necessary. */
+ if (!g->gc)
+ {
+ g->gc = gdk_gc_new (gtk_widget_get_window (g->disp));
+ gdk_gc_copy (g->gc, style->black_gc);
+ }
+
+ /* Allocate colors. */
+ if (!g->colors_allocated)
+ {
+ GdkColormap *colormap;
+
+ colormap = gdk_drawable_get_colormap (gtk_widget_get_window (g->disp));
+ 
+ for (i = 0; i < g->n; i++)
+ gdk_colormap_alloc_color (colormap, &(g->colors [i]),
+ FALSE, TRUE);
+
+ g->colors_allocated = 1;
+ }
+ 
+ /* Erase Rectangle */
+ gdk_draw_rectangle (g->pixmap,
+ style->black_gc,
+ TRUE, 0, 0,
+ g->draw_width,
+ g->draw_height);
+
+ for (i = 0; i < g->draw_width; i++)
+ g->pos [i] = g->draw_height - 1;
+
+ for (j = 0; j < g->n; j++)
+ {
+ gdk_gc_set_foreground (g->gc, &(g->colors [j]));
+
+ for (i = 0; i < g->draw_width; i++) {
+ if (g->data [i][j] != 0) {
+ gdk_draw_line (g->pixmap, g->gc,
+ g->draw_width - i - 1,
+ g->pos[i],
+ g->draw_width - i - 1,
+ g->pos[i] - (g->data [i][j] - 1));
+
+ g->pos [i] -= g->data [i][j];
+ }
+ }
+ }
+ 
+ gdk_draw_drawable (gtk_widget_get_window (g->disp),
+ style->fg_gc [gtk_widget_get_state (g->disp)],
+ g->pixmap,
+ 0, 0,
+ 0, 0,
+ g->draw_width,
+ g->draw_height);
+}
+
+/* Updates the load graph when the timeout expires */
+static gboolean
+load_graph_update (LoadGraph *g)
+{
+ if (g->data == NULL)
+ return TRUE;
+
+ shift_right(g);
+
+ if (g->tooltip_update)
+ multiload_applet_tooltip_update(g);
+
+ g->get_data (g->draw_height, g->data [0], g);
+
+ load_graph_draw (g);
+ return TRUE;
+}
+
+void
+load_graph_unalloc (LoadGraph *g)
+{
+ guint i;
+
+ if (!g->allocated)
+ return;
+
+ for (i = 0; i < g->draw_width; i++)
+ {
+ g_free (g->data [i]);
+ }
+
+ g_free (g->data);
+ g_free (g->pos);
+
+ g->pos = NULL;
+ g->data = NULL;
+ 
+ g->size = mate_panel_applet_mateconf_get_int(g->multiload->applet, "size", NULL);
+ g->size = MAX (g->size, 10);
+
+ if (g->pixmap) {
+ g_object_unref (g->pixmap);
+ g->pixmap = NULL;
+ }
+
+ if (g->gc) {
+ g_object_unref (g->gc);
+ g->gc = NULL;
+ }
+
+ g->allocated = FALSE;
+}
+
+static void
+load_graph_alloc (LoadGraph *g)
+{
+ guint i;
+
+ if (g->allocated)
+ return;
+
+ g->data = g_new0 (gint *, g->draw_width);
+ g->pos = g_new0 (guint, g->draw_width);
+
+ g->data_size = sizeof (guint) * g->n;
+
+ for (i = 0; i < g->draw_width; i++) {
+ g->data [i] = g_malloc0 (g->data_size);
+ }
+
+ g->allocated = TRUE;
+}
+
+static gint
+load_graph_configure (GtkWidget *widget, GdkEventConfigure *event,
+ gpointer data_ptr)
+{
+ GtkAllocation allocation;
+ LoadGraph *c = (LoadGraph *) data_ptr;
+ 
+ load_graph_unalloc (c);
+
+ gtk_widget_get_allocation (c->disp, &allocation);
+
+ c->draw_width = allocation.width;
+ c->draw_height = allocation.height;
+ c->draw_width = MAX (c->draw_width, 1);
+ c->draw_height = MAX (c->draw_height, 1);
+ 
+ load_graph_alloc (c);
+ 
+ if (!c->pixmap)
+ c->pixmap = gdk_pixmap_new (gtk_widget_get_window (c->disp),
+ c->draw_width,
+ c->draw_height,
+ gtk_widget_get_visual (c->disp)->depth);
+
+ gdk_draw_rectangle (c->pixmap,
+ (gtk_widget_get_style (widget))->black_gc,
+ TRUE, 0,0,
+ c->draw_width,
+ c->draw_height);
+ gdk_draw_drawable (gtk_widget_get_window (widget),
+ (gtk_widget_get_style (c->disp))->fg_gc [gtk_widget_get_state (widget)],
+ c->pixmap,
+ 0, 0,
+ 0, 0,
+ c->draw_width,
+ c->draw_height);
+
+ return TRUE;
+}
+
+static gint
+load_graph_expose (GtkWidget *widget, GdkEventExpose *event,
+ gpointer data_ptr)
+{
+ LoadGraph *g = (LoadGraph *) data_ptr;
+
+ gdk_draw_drawable (gtk_widget_get_window (widget),
+ (gtk_widget_get_style (widget))->fg_gc [gtk_widget_get_state (widget)],
+ g->pixmap,
+ event->area.x, event->area.y,
+ event->area.x, event->area.y,
+ event->area.width, event->area.height);
+
+ return FALSE;
+}
+
+static void
+load_graph_destroy (GtkWidget *widget, gpointer data_ptr)
+{
+ LoadGraph *g = (LoadGraph *) data_ptr;
+
+ load_graph_stop (g);
+ netspeed_delete(g->netspeed_in);
+ netspeed_delete(g->netspeed_out);
+
+ gtk_widget_destroy(widget);
+}
+
+static gboolean
+load_graph_clicked (GtkWidget *widget, GdkEventButton *event, LoadGraph *load)
+{
+ load->multiload->last_clicked = load->id;
+
+ return FALSE;
+}
+
+static gboolean
+load_graph_enter_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
+{
+ LoadGraph *graph;
+ graph = (LoadGraph *)data;
+
+ graph->tooltip_update = TRUE;
+ multiload_applet_tooltip_update(graph);
+
+ return TRUE;
+}
+
+static gboolean
+load_graph_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
+{
+ LoadGraph *graph;
+ graph = (LoadGraph *)data;
+
+ graph->tooltip_update = FALSE;
+
+ return TRUE;
+}
+
+static void
+load_graph_load_config (LoadGraph *g)
+{
+ 
+ gchar name [BUFSIZ], *temp;
+ guint i;
+
+ if (!g->colors)
+ g->colors = g_new0(GdkColor, g->n);
+ 
+ for (i = 0; i < g->n; i++)
+ {
+ g_snprintf(name, sizeof(name), "%s_color%u", g->name, i);
+ temp = mate_panel_applet_mateconf_get_string(g->multiload->applet, name, NULL);
+ if (!temp)
+ temp = g_strdup ("#000000");
+ gdk_color_parse(temp, &(g->colors[i]));
+ g_free(temp);
+ }
+}
+
+LoadGraph *
+load_graph_new (MultiloadApplet *ma, guint n, const gchar *label,
+ guint id, guint speed, guint size, gboolean visible, 
+ const gchar *name, LoadGraphDataFunc get_data)
+{
+ LoadGraph *g;
+ MatePanelAppletOrient orient;
+ 
+ g = g_new0 (LoadGraph, 1);
+ g->netspeed_in = netspeed_new(g);
+ g->netspeed_out = netspeed_new(g);
+ g->visible = visible;
+ g->name = name;
+ g->n = n;
+ g->id = id;
+ g->speed = MAX (speed, 50);
+ g->size = MAX (size, 10);
+ g->pixel_size = mate_panel_applet_get_size (ma->applet);
+ g->tooltip_update = FALSE;
+ g->show_frame = TRUE;
+ g->multiload = ma;
+ 
+ g->main_widget = gtk_vbox_new (FALSE, 0);
+
+ g->box = gtk_vbox_new (FALSE, 0);
+ 
+ orient = mate_panel_applet_get_orient (g->multiload->applet);
+ switch (orient)
+ {
+ case MATE_PANEL_APPLET_ORIENT_UP:
+ case MATE_PANEL_APPLET_ORIENT_DOWN:
+ {
+ g->orient = FALSE;
+ break;
+ }
+ case MATE_PANEL_APPLET_ORIENT_LEFT:
+ case MATE_PANEL_APPLET_ORIENT_RIGHT:
+ {
+ g->orient = TRUE;
+ break;
+ }
+ default:
+ g_assert_not_reached ();
+ }
+ 
+ if (g->show_frame)
+ {
+ g->frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (g->frame), GTK_SHADOW_IN);
+ gtk_container_add (GTK_CONTAINER (g->frame), g->box);
+ gtk_box_pack_start (GTK_BOX (g->main_widget), g->frame, TRUE, TRUE, 0);
+ }
+ else
+ {
+ g->frame = NULL;
+ gtk_box_pack_start (GTK_BOX (g->main_widget), g->box, TRUE, TRUE, 0);
+ }
+
+ load_graph_load_config (g);
+
+ g->get_data = get_data;
+
+ g->timer_index = -1;
+
+ if (g->orient)
+ gtk_widget_set_size_request (g->main_widget, -1, g->size);
+ else
+ gtk_widget_set_size_request (g->main_widget, g->size, -1);
+
+ g->disp = gtk_drawing_area_new ();
+ gtk_widget_set_events (g->disp, GDK_EXPOSURE_MASK |
+ GDK_ENTER_NOTIFY_MASK |
+ GDK_LEAVE_NOTIFY_MASK |
+ GDK_BUTTON_PRESS_MASK);
+ 
+ g_signal_connect (G_OBJECT (g->disp), "expose_event",
+ G_CALLBACK (load_graph_expose), g);
+ g_signal_connect (G_OBJECT(g->disp), "configure_event",
+ G_CALLBACK (load_graph_configure), g);
+ g_signal_connect (G_OBJECT(g->disp), "destroy",
+ G_CALLBACK (load_graph_destroy), g);
+ g_signal_connect (G_OBJECT(g->disp), "button-press-event",
+ G_CALLBACK (load_graph_clicked), g);
+ g_signal_connect (G_OBJECT(g->disp), "enter-notify-event",
+ G_CALLBACK(load_graph_enter_cb), g);
+ g_signal_connect (G_OBJECT(g->disp), "leave-notify-event",
+ G_CALLBACK(load_graph_leave_cb), g);
+ 
+ gtk_box_pack_start (GTK_BOX (g->box), g->disp, TRUE, TRUE, 0); 
+ gtk_widget_show_all(g->box);
+
+ return g;
+}
+
+void
+load_graph_start (LoadGraph *g)
+{
+ if (g->timer_index != -1)
+ g_source_remove (g->timer_index);
+
+ g->timer_index = g_timeout_add (g->speed,
+ (GSourceFunc) load_graph_update, g);
+}
+
+void
+load_graph_stop (LoadGraph *g)
+{
+ if (g->timer_index != -1)
+ g_source_remove (g->timer_index);
+ 
+ g->timer_index = -1;
+}