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author | Perberos <[email protected]> | 2011-11-14 18:24:48 -0300 |
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committer | Perberos <[email protected]> | 2011-11-14 18:24:48 -0300 |
commit | 312ba610a1e98fc656fb58178227d7d45a64494e (patch) | |
tree | 54a3c2b6084c80e63fb0526c6e7b8e01627acbd7 /multiload/load-graph.c | |
download | mate-applets-312ba610a1e98fc656fb58178227d7d45a64494e.tar.bz2 mate-applets-312ba610a1e98fc656fb58178227d7d45a64494e.tar.xz |
initial
Diffstat (limited to 'multiload/load-graph.c')
-rw-r--r-- | multiload/load-graph.c | 425 |
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; +} |