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feat: convert procmgr and mandelbrot to Window Server apps

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This commit is contained in:
Daniel Hammer
2026-03-28 10:54:31 +01:00
parent 48378e3bea
commit b9dfaba5d1
22 changed files with 927 additions and 644 deletions
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programs/src/procmgr/main.cpp
+277
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/*
* main.cpp
* MontaukOS Process Manager - standalone Window Server app
* Preserves the old desktop-integrated Processes window layout
* Copyright (c) 2026 Daniel Hammer
*/
#include <montauk/syscall.h>
#include <montauk/string.h>
#include <montauk/heap.h>
#include <gui/gui.hpp>
#include <gui/canvas.hpp>
#include <gui/standalone.hpp>
#include <gui/truetype.hpp>
extern "C" {
#include <stdio.h>
}
using namespace gui;
static constexpr int INIT_W = 520;
static constexpr int INIT_H = 400;
static constexpr int PM_TOOLBAR_H = 36;
static constexpr int PM_HEADER_H = 24;
static constexpr int PM_ITEM_H = 28;
static constexpr int PM_MAX_PROCS = 16;
static constexpr int PM_POLL_MS = 1000;
static constexpr int FONT_SIZE = 18;
struct ProcMgrState {
Montauk::ProcInfo procs[PM_MAX_PROCS];
int proc_count;
int selected;
uint64_t last_poll_ms;
};
static WsWindow g_win;
static ProcMgrState g_pm = {};
static void format_size(char* buf, int size) {
if (size < 1024) {
snprintf(buf, 16, "%d B", size);
} else if (size < 1024 * 1024) {
int kb = size / 1024;
int frac = ((size % 1024) * 10) / 1024;
if (kb < 10) snprintf(buf, 16, "%d.%d KB", kb, frac);
else snprintf(buf, 16, "%d KB", kb);
} else {
int mb = size / (1024 * 1024);
int frac = ((size % (1024 * 1024)) * 10) / (1024 * 1024);
if (mb < 10) snprintf(buf, 16, "%d.%d MB", mb, frac);
else snprintf(buf, 16, "%d MB", mb);
}
}
static bool refresh_processes(bool force) {
uint64_t now = montauk::get_milliseconds();
if (!force && now - g_pm.last_poll_ms < PM_POLL_MS)
return false;
g_pm.last_poll_ms = now;
int prev_pid = -1;
if (g_pm.selected >= 0 && g_pm.selected < g_pm.proc_count)
prev_pid = g_pm.procs[g_pm.selected].pid;
g_pm.proc_count = montauk::proclist(g_pm.procs, PM_MAX_PROCS);
g_pm.selected = -1;
if (prev_pid >= 0) {
for (int i = 0; i < g_pm.proc_count; i++) {
if (g_pm.procs[i].pid == prev_pid) {
g_pm.selected = i;
break;
}
}
}
return true;
}
static bool can_kill_selected() {
return g_pm.selected >= 0
&& g_pm.selected < g_pm.proc_count
&& g_pm.procs[g_pm.selected].pid != 0;
}
static void kill_selected() {
if (!can_kill_selected())
return;
montauk::kill(g_pm.procs[g_pm.selected].pid);
refresh_processes(true);
}
static void render() {
TrueTypeFont* font = fonts::system_font;
Canvas c = g_win.canvas();
c.fill(colors::WINDOW_BG);
int fh = text_height(font, FONT_SIZE);
c.fill_rect(0, 0, g_win.width, PM_TOOLBAR_H, Color::from_rgb(0xF5, 0xF5, 0xF5));
c.hline(0, PM_TOOLBAR_H - 1, g_win.width, colors::BORDER);
int btn_w = 100;
int btn_h = 26;
int btn_x = 8;
int btn_y = (PM_TOOLBAR_H - btn_h) / 2;
Color btn_bg = can_kill_selected()
? Color::from_rgb(0xCC, 0x33, 0x33)
: Color::from_rgb(0xAA, 0xAA, 0xAA);
draw_button(c, font, btn_x, btn_y, btn_w, btn_h, "End Process",
btn_bg, colors::WHITE, 4, FONT_SIZE);
char count_str[24];
snprintf(count_str, sizeof(count_str), "%d processes", g_pm.proc_count);
int count_w = text_width(font, count_str, FONT_SIZE);
draw_text(c, font, g_win.width - count_w - 12, (PM_TOOLBAR_H - fh) / 2,
count_str, colors::TEXT_COLOR, FONT_SIZE);
int header_y = PM_TOOLBAR_H;
c.fill_rect(0, header_y, g_win.width, PM_HEADER_H, Color::from_rgb(0xF0, 0xF0, 0xF0));
int col_pid = 12;
int col_name = 64;
int col_mem = g_win.width - 120;
int col_state = g_win.width - 52;
int header_text_y = header_y + (PM_HEADER_H - fh) / 2;
Color header_color = Color::from_rgb(0x66, 0x66, 0x66);
draw_text(c, font, col_pid, header_text_y, "PID", header_color, FONT_SIZE);
draw_text(c, font, col_name, header_text_y, "Name", header_color, FONT_SIZE);
draw_text(c, font, col_mem, header_text_y, "Mem", header_color, FONT_SIZE);
draw_text(c, font, col_state, header_text_y, "St", header_color, FONT_SIZE);
c.hline(0, header_y + PM_HEADER_H - 1, g_win.width, colors::BORDER);
int list_y = PM_TOOLBAR_H + PM_HEADER_H;
for (int i = 0; i < g_pm.proc_count; i++) {
int row_y = list_y + i * PM_ITEM_H;
if (row_y + PM_ITEM_H > g_win.height)
break;
if (i == g_pm.selected)
c.fill_rect(0, row_y, g_win.width, PM_ITEM_H, colors::MENU_HOVER);
int text_y = row_y + (PM_ITEM_H - fh) / 2;
char pid_str[8];
snprintf(pid_str, sizeof(pid_str), "%d", (int)g_pm.procs[i].pid);
int pid_w = text_width(font, pid_str, FONT_SIZE);
draw_text(c, font, col_pid + 32 - pid_w, text_y, pid_str, colors::TEXT_COLOR, FONT_SIZE);
draw_text(c, font, col_name, text_y, g_pm.procs[i].name, colors::TEXT_COLOR, FONT_SIZE);
char mem_str[16];
format_size(mem_str, (int)g_pm.procs[i].heapUsed);
draw_text(c, font, col_mem, text_y, mem_str, colors::TEXT_COLOR, FONT_SIZE);
const char* state_str = "?";
Color state_color = colors::TEXT_COLOR;
switch (g_pm.procs[i].state) {
case 1:
state_str = "Rdy";
state_color = Color::from_rgb(0x33, 0x66, 0xCC);
break;
case 2:
state_str = "Run";
state_color = Color::from_rgb(0x22, 0x88, 0x22);
break;
case 3:
state_str = "Term";
state_color = Color::from_rgb(0xCC, 0x33, 0x33);
break;
}
draw_text(c, font, col_state, text_y, state_str, state_color, FONT_SIZE);
}
}
static bool handle_mouse(const Montauk::WinEvent& ev) {
bool left_pressed = (ev.mouse.buttons & 1) && !(ev.mouse.prev_buttons & 1);
if (!left_pressed)
return false;
int mx = ev.mouse.x;
int my = ev.mouse.y;
int btn_w = 100;
int btn_h = 26;
int btn_x = 8;
int btn_y = (PM_TOOLBAR_H - btn_h) / 2;
Rect btn_rect = {btn_x, btn_y, btn_w, btn_h};
if (btn_rect.contains(mx, my)) {
kill_selected();
return true;
}
int list_y = PM_TOOLBAR_H + PM_HEADER_H;
if (my < list_y)
return false;
int row = (my - list_y) / PM_ITEM_H;
if (row >= 0 && row < g_pm.proc_count) g_pm.selected = row;
else g_pm.selected = -1;
return true;
}
static bool handle_key(const Montauk::KeyEvent& key) {
if (!key.pressed)
return false;
if (key.scancode == 0x48) {
if (g_pm.selected > 0) g_pm.selected--;
else if (g_pm.proc_count > 0) g_pm.selected = 0;
return true;
}
if (key.scancode == 0x50) {
if (g_pm.selected < g_pm.proc_count - 1) g_pm.selected++;
return true;
}
if (key.scancode == 0x53) {
if (can_kill_selected()) {
kill_selected();
return true;
}
}
return false;
}
extern "C" void _start() {
if (!fonts::init())
montauk::exit(1);
if (!g_win.create("Processes", INIT_W, INIT_H))
montauk::exit(1);
g_pm.selected = -1;
refresh_processes(true);
render();
g_win.present();
while (!g_win.closed) {
bool redraw = refresh_processes(false);
Montauk::WinEvent ev;
int r = g_win.poll(&ev);
if (r < 0) break;
if (r == 0) {
if (redraw) {
render();
g_win.present();
}
montauk::sleep_ms(16);
continue;
}
if (ev.type == 3)
break;
if (ev.type == 1) redraw |= handle_mouse(ev);
else if (ev.type == 0) redraw |= handle_key(ev.key);
else if (ev.type == 2 || ev.type == 4) redraw = true;
if (redraw) {
render();
g_win.present();
}
}
g_win.destroy();
montauk::exit(0);
}