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-rw-r--r--shell/loadgraph.c183
1 files changed, 67 insertions, 116 deletions
diff --git a/shell/loadgraph.c b/shell/loadgraph.c
index 8fbeef48..ceb91720 100644
--- a/shell/loadgraph.c
+++ b/shell/loadgraph.c
@@ -20,11 +20,31 @@
* You should have received a copy of the GNU Lesser General Public
* License along with the Simple Load Graph; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307 USA.
+ * 02111-1307 USA.
*/
#include "loadgraph.h"
+struct _LoadGraph {
+ GdkPixmap *buf;
+ GdkGC *grid;
+ GdkGC *trace;
+ GdkGC *fill;
+ GtkWidget *area;
+
+ gint *data;
+ gfloat scale;
+
+ gint size;
+ gint width, height;
+ LoadGraphColor color;
+
+ gint max_value, remax_count;
+
+ PangoLayout *layout;
+ gchar *suffix;
+};
+
static void _draw(LoadGraph * lg);
LoadGraph *load_graph_new(gint size)
@@ -89,7 +109,7 @@ void load_graph_clear(LoadGraph * lg)
gint i;
for (i = 0; i < lg->size; i++)
- lg->data[i] = 0;
+ lg->data[i] = 0;
lg->scale = 1.0;
lg->max_value = 1;
@@ -119,14 +139,14 @@ void load_graph_destroy(LoadGraph * lg)
}
static gboolean _expose(GtkWidget * widget, GdkEventExpose * event,
- gpointer user_data)
+ gpointer user_data)
{
LoadGraph *lg = (LoadGraph *) user_data;
GdkDrawable *draw = GDK_DRAWABLE(lg->buf);
gdk_draw_drawable(lg->area->window,
- lg->area->style->black_gc,
- draw, 0, 0, 0, 0, lg->width, lg->height);
+ lg->area->style->black_gc,
+ draw, 0, 0, 0, 0, lg->width, lg->height);
return FALSE;
}
@@ -146,27 +166,17 @@ void load_graph_configure_expose(LoadGraph * lg)
/* init graphic contexts */
gdk_gc_set_line_attributes(lg->grid,
- 1, GDK_LINE_ON_OFF_DASH,
- GDK_CAP_NOT_LAST, GDK_JOIN_ROUND);
+ 1, GDK_LINE_ON_OFF_DASH,
+ GDK_CAP_NOT_LAST, GDK_JOIN_ROUND);
gdk_gc_set_dashes(lg->grid, 0, (gint8*)"\2\2", 2);
-
-#if 0 /* old-style grid */
- gdk_rgb_gc_set_foreground(lg->grid, 0x707070);
-#endif
gdk_gc_set_line_attributes(lg->trace,
- 1, GDK_LINE_SOLID,
- GDK_CAP_PROJECTING, GDK_JOIN_ROUND);
-
-#if 0 /* old-style fill */
- gdk_gc_set_line_attributes(lg->fill,
- 1, GDK_LINE_SOLID,
- GDK_CAP_BUTT, GDK_JOIN_BEVEL);
-#endif
+ 1, GDK_LINE_SOLID,
+ GDK_CAP_PROJECTING, GDK_JOIN_ROUND);
/* configures the expose event */
g_signal_connect(G_OBJECT(lg->area), "expose-event",
- (GCallback) _expose, lg);
+ (GCallback) _expose, lg);
}
static void _draw_label_and_line(LoadGraph * lg, gint position, gint value)
@@ -175,21 +185,21 @@ static void _draw_label_and_line(LoadGraph * lg, gint position, gint value)
/* draw lines */
if (position > 0)
- gdk_draw_line(GDK_DRAWABLE(lg->buf), lg->grid, 0, position,
- lg->width, position);
+ gdk_draw_line(GDK_DRAWABLE(lg->buf), lg->grid, 0, position,
+ lg->width, position);
else
- position = -1 * position;
+ position = -1 * position;
/* draw label */
tmp =
- g_strdup_printf("<span size=\"x-small\">%d%s</span>", value,
- lg->suffix);
+ g_strdup_printf("<span size=\"x-small\">%d%s</span>", value,
+ lg->suffix);
pango_layout_set_markup(lg->layout, tmp, -1);
pango_layout_set_width(lg->layout,
- lg->area->allocation.width * PANGO_SCALE);
+ lg->area->allocation.width * PANGO_SCALE);
gdk_draw_layout(GDK_DRAWABLE(lg->buf), lg->trace, 2, position,
- lg->layout);
+ lg->layout);
g_free(tmp);
}
@@ -201,15 +211,15 @@ static void _draw(LoadGraph * lg)
/* clears the drawing area */
gdk_draw_rectangle(draw, lg->area->style->black_gc,
- TRUE, 0, 0, lg->width, lg->height);
+ TRUE, 0, 0, lg->width, lg->height);
/* the graph */
GdkPoint *points = g_new0(GdkPoint, lg->size + 1);
for (i = 0; i < lg->size; i++) {
- points[i].x = i * 4;
- points[i].y = lg->height - lg->data[i] * lg->scale;
+ points[i].x = i * 4;
+ points[i].y = lg->height - lg->data[i] * lg->scale;
}
points[0].x = points[1].x = 0;
@@ -223,8 +233,8 @@ static void _draw(LoadGraph * lg)
/* vertical bars */
for (i = lg->width, d = 0; i > 1; i--, d++)
- if ((d % 45) == 0 && d)
- gdk_draw_line(draw, lg->grid, i, 0, i, lg->height);
+ if ((d % 45) == 0 && d)
+ gdk_draw_line(draw, lg->grid, i, 0, i, lg->height);
/* horizontal bars and labels; 25%, 50% and 75% */
_draw_label_and_line(lg, -1, lg->max_value);
@@ -232,41 +242,27 @@ static void _draw(LoadGraph * lg)
_draw_label_and_line(lg, lg->height / 2, lg->max_value / 2);
_draw_label_and_line(lg, 3 * (lg->height / 4), lg->max_value / 4);
-#if 0 /* old-style drawing */
- for (i = 0; i < lg->size; i++) {
- gint this = lg->height - lg->data[i] * lg->scale;
- gint next = lg->height - lg->data[i + 1] * lg->scale;
- gint i4 = i * 4;
-
- gdk_draw_line(draw, lg->fill, i4, this, i4, lg->height);
- gdk_draw_line(draw, lg->fill, i4 + 2, this, i4 + 2, lg->height);
- }
-
- for (i = 0; i < lg->size; i++) {
- gint this = lg->height - lg->data[i] * lg->scale;
- gint next = lg->height - lg->data[i + 1] * lg->scale;
- gint i4 = i * 4;
-
- gdk_draw_line(draw, lg->trace, i4, this, i4 + 2,
- (this + next) / 2);
- gdk_draw_line(draw, lg->trace, i4 + 2, (this + next) / 2,
- i4 + 4, next);
- }
-#endif
-
gtk_widget_queue_draw(lg->area);
}
-void load_graph_update(LoadGraph * lg, gint value)
+void load_graph_update_ex(LoadGraph *lg, guint line, gdouble value)
+{
+ /* not implemented */
+ if (line == 0)
+ load_graph_update(lg, value);
+}
+
+void load_graph_update(LoadGraph * lg, gdouble v)
{
gint i;
+ gint value = (gint)v;
if (value < 0)
- return;
+ return;
/* shift-right our data */
for (i = 0; i < lg->size - 1; i++) {
- lg->data[i] = lg->data[i + 1];
+ lg->data[i] = lg->data[i + 1];
}
/* insert the updated value */
@@ -274,20 +270,20 @@ void load_graph_update(LoadGraph * lg, gint value)
/* calculates the maximum value */
if (lg->remax_count++ > 20) {
- /* only finds the maximum amongst the data every 20 times */
- lg->remax_count = 0;
+ /* only finds the maximum amongst the data every 20 times */
+ lg->remax_count = 0;
- gint max = lg->data[0];
- for (i = 1; i < lg->size; i++) {
- if (lg->data[i] > max)
- max = lg->data[i];
- }
+ gint max = lg->data[0];
+ for (i = 1; i < lg->size; i++) {
+ if (lg->data[i] > max)
+ max = lg->data[i];
+ }
- lg->max_value = max;
+ lg->max_value = max;
} else {
- /* otherwise, select the maximum between the current maximum
- and the supplied value */
- lg->max_value = MAX(value, lg->max_value);
+ /* otherwise, select the maximum between the current maximum
+ and the supplied value */
+ lg->max_value = MAX(value, lg->max_value);
}
/* recalculates the scale; always use 90% of it */
@@ -297,53 +293,8 @@ void load_graph_update(LoadGraph * lg, gint value)
_draw(lg);
}
-#ifdef LOADGRAPH_UNIT_TEST
-gboolean lg_update(gpointer d)
-{
- LoadGraph *lg = (LoadGraph *) d;
-
- static int i = 0;
- static int j = 1;
-
- if (i > 150) {
- j = -1;
- } else if (i < 0) {
- j = 1;
- }
-
- i += j;
- if (rand() % 10 > 8)
- i *= 2;
- if (rand() % 10 < 2)
- i /= 2;
- load_graph_update(lg, i + rand() % 50);
-
- return TRUE;
-}
-
-int main(int argc, char **argv)
-{
-
-
- LoadGraph *lg;
- GtkWidget *window;
-
- gtk_init(&argc, &argv);
-
- window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
- gtk_widget_show(window);
-
- lg = load_graph_new(50);
- gtk_container_add(GTK_CONTAINER(window), load_graph_get_framed(lg));
- gtk_container_set_border_width(GTK_CONTAINER(window), 20);
- load_graph_configure_expose(lg);
-
- lg_update(lg);
-
- g_timeout_add(100, lg_update, lg);
-
- gtk_main();
-
+gint load_graph_get_height(LoadGraph *lg) {
+ if (lg != NULL)
+ return lg->height;
return 0;
}
-#endif
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