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92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/* assume Linux here */
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#include <sys/sysinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <FL/Fl.H>
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#include <FL/fl_draw.H>
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#include <edelib/Color.h>
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#include <edelib/Missing.h>
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#include <edelib/Nls.h>
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#include "MemMonitor.h"
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EDELIB_NS_USING(color_rgb_to_fltk)
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#define UPDATE_INTERVAL 1.0f
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#define STR_CMP(first, second, n) (strncmp(first, second, n) == 0)
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inline int height_from_perc(int perc, int h) {
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return (perc * h) / 100;
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}
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static void mem_timeout_cb(void *d) {
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((MemMonitor*)d)->update_status();
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Fl::repeat_timeout(UPDATE_INTERVAL, mem_timeout_cb, d);
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}
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MemMonitor::MemMonitor() : Fl_Box(0, 0, 45, 25), mem_usedp(0), swap_usedp(0) {
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box(FL_THIN_DOWN_BOX);
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}
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void MemMonitor::update_status(void) {
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struct sysinfo sys;
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if(sysinfo(&sys) != 0) return;
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long mem_total, mem_free, swap_total, swap_free;
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mem_total = (float)sys.totalram * (float)sys.mem_unit / 1048576.0f;
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mem_free = (float)sys.freeram * (float)sys.mem_unit / 1048576.0f;
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swap_total = (float)sys.totalswap * (float)sys.mem_unit / 1048576.0f;
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swap_free = (float)sys.freeswap * (float)sys.mem_unit / 1048576.0f;
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mem_usedp = 100 - (int)(((float)mem_free / (float)mem_total) * 100);
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swap_usedp = 100 - (int)(((float)swap_free / (float)swap_total) * 100);
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static char tip[100];
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snprintf(tip, sizeof(tip), _("Memory used: %i%%\nSwap used: %i%%"), mem_usedp, swap_usedp);
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tooltip(tip);
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redraw();
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}
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void MemMonitor::draw(void) {
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draw_box();
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int W, W2, H, X, Y, mh, sh;
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W = w() - Fl::box_dw(box());
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H = h() - Fl::box_dh(box());
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X = x() + Fl::box_dx(box());
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Y = y() + Fl::box_dy(box());
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W2 = W / 2;
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mh = height_from_perc(mem_usedp, H);
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sh = height_from_perc(swap_usedp, H);
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fl_rectf(X, Y + H - mh, W2, mh, (Fl_Color)color_rgb_to_fltk(166, 48, 48));
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fl_rectf(X + W2, Y + H - sh, W2, sh, (Fl_Color)color_rgb_to_fltk(54, 136, 79));
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}
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int MemMonitor::handle(int e) {
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switch(e) {
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case FL_SHOW: {
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int ret = Fl_Box::handle(e);
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Fl::add_timeout(UPDATE_INTERVAL, mem_timeout_cb, this);
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return ret;
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}
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case FL_HIDE:
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Fl::remove_timeout(mem_timeout_cb);
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/* fallthrough */
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}
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return Fl_Box::handle(e);
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}
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EDE_PANEL_APPLET_EXPORT (
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MemMonitor,
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EDE_PANEL_APPLET_OPTION_ALIGN_RIGHT,
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"Memory monitor",
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"0.1",
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"empty",
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"Sanel Zukan"
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)
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