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boredos_mirror/src/kernel/wm.c
Chris e939d50be6 1.44 Beta 
[BUG FIX UPDATE]
Updates until 1.50 will be bug fix updates as 1.50 will be a full release.
Bug fixes for 1.44:
-Stopped the crashing when moving stuff onto the desktop
-Fixed codeblock formatting in the markdown viewer.
2026-02-09 21:00:32 +01:00

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#include "wm.h"
#include "graphics.h"
#include "io.h"
#include "cmd.h"
#include "calculator.h"
#include "cli_apps/cli_utils.h"
#include "explorer.h"
#include "editor.h"
#include "markdown.h"
#include <stdbool.h>
#include <stddef.h>
#include "notepad.h"
#include "control_panel.h"
#include "about.h"
#include "minesweeper.h"
#include "fat32.h"
#include "memory_manager.h"
#include "paint.h"
// --- State ---
static int mx = 400, my = 300; // Mouse Pos
static int prev_mx = 400, prev_my = 300; // Previous mouse position
static bool start_menu_open = false;
static char *start_menu_pending_app = NULL; // For click vs drag detection
static int pending_desktop_icon_click = -1; // For desktop icon click vs drag
// Desktop Context Menu
static bool desktop_menu_visible = false;
static int desktop_menu_x = 0;
static int desktop_menu_y = 0;
static int desktop_menu_target_icon = -1; // -1 for background
// Desktop Dialog State
static int desktop_dialog_state = 0; // 0=None, 8=Rename
static char desktop_dialog_input[64];
static int desktop_dialog_cursor = 0;
static int desktop_dialog_target = -1;
// Message Box
static bool msg_box_visible = false;
static char msg_box_title[64];
static char msg_box_text[64];
// Hook definition
void (*wm_custom_paint_hook)(void) = NULL;
// Dragging State
static bool is_dragging = false;
static Window *drag_window = NULL;
static int drag_offset_x = 0;
static int drag_offset_y = 0;
// File Dragging State
bool is_dragging_file = false;
static char drag_file_path[256];
static int drag_icon_type = 0; // 0=File, 1=Folder, 2=App
static int drag_start_x = 0;
static int drag_start_y = 0;
static int drag_icon_orig_x = 0;
static int drag_icon_orig_y = 0;
static Window *drag_src_win = NULL;
// Windows array for z-order management
static Window *all_windows[32];
static int window_count = 0;
// Redraw system
static bool force_redraw = true; // Force full redraw on next tick
static uint32_t timer_ticks = 0;
static int desktop_refresh_timer = 0;
// Cursor state
static bool cursor_visible = true;
static int last_cursor_x = 400;
static int last_cursor_y = 300;
// --- Desktop State ---
#define MAX_DESKTOP_ICONS 32
typedef struct {
char name[64];
int x, y;
int type; // 0=File, 1=Folder, 2=App
} DesktopIcon;
static DesktopIcon desktop_icons[MAX_DESKTOP_ICONS];
static int desktop_icon_count = 0;
// Desktop Settings
bool desktop_snap_to_grid = true;
bool desktop_auto_align = true;
int desktop_max_rows_per_col = 9;
int desktop_max_cols = 15;
// Helper to check if string ends with suffix
static bool str_ends_with(const char *str, const char *suffix) {
int str_len = 0; while(str[str_len]) str_len++;
int suf_len = 0; while(suffix[suf_len]) suf_len++;
if (suf_len > str_len) return false;
for (int i = 0; i < suf_len; i++) {
if (str[str_len - suf_len + i] != suffix[i]) return false;
}
return true;
}
// Helper to check if string starts with prefix
static bool str_starts_with(const char *str, const char *prefix) {
while(*prefix) {
if (*prefix++ != *str++) return false;
}
return true;
}
static int str_eq(const char *s1, const char *s2) {
while (*s1 && (*s1 == *s2)) { s1++; s2++; }
return *(const unsigned char*)s1 - *(const unsigned char*)s2;
}
static void refresh_desktop_icons(void) {
// Update limit in FS
fat32_set_desktop_limit(desktop_max_cols * desktop_max_rows_per_col);
FAT32_FileInfo *files = (FAT32_FileInfo*)kmalloc(MAX_DESKTOP_ICONS * sizeof(FAT32_FileInfo));
if (!files) return;
int file_count = fat32_list_directory("/Desktop", files, MAX_DESKTOP_ICONS);
// Temp array to hold new state
DesktopIcon new_icons[MAX_DESKTOP_ICONS];
int new_count = 0;
bool file_processed[MAX_DESKTOP_ICONS];
for(int i=0; i<MAX_DESKTOP_ICONS; i++) file_processed[i] = false;
// 1. Preserve existing icons in their current order
for (int i = 0; i < desktop_icon_count; i++) {
// Find if this icon still exists in the file list
int found_idx = -1;
for (int j = 0; j < file_count; j++) {
if (!file_processed[j] && str_eq(desktop_icons[i].name, files[j].name) == 0) {
found_idx = j;
break;
}
}
if (found_idx != -1) {
// Keep it
if (new_count < MAX_DESKTOP_ICONS) {
new_icons[new_count] = desktop_icons[i];
new_count++;
file_processed[found_idx] = true;
}
}
}
// 2. Add new files (not currently on desktop) to the end
for (int i = 0; i < file_count; i++) {
if (!file_processed[i]) {
if (files[i].name[0] == '.') continue; // Skip . and ..
if (new_count >= MAX_DESKTOP_ICONS) break;
DesktopIcon *dest = &new_icons[new_count];
int k = 0; while(files[i].name[k] && k < 63) { dest->name[k] = files[i].name[k]; k++; }
dest->name[k] = 0;
if (files[i].is_directory) dest->type = 1;
else if (str_ends_with(dest->name, ".shortcut")) dest->type = 2;
else dest->type = 0;
dest->x = -1; // Mark as new for layout
dest->y = -1;
new_count++;
}
}
desktop_icon_count = new_count;
for(int i=0; i<new_count; i++) desktop_icons[i] = new_icons[i];
kfree(files);
// 3. Layout Icons
if (desktop_auto_align) {
int start_x = 20;
int start_y = 20;
int grid_x = 0;
int grid_y = 0;
// Find Recycle Bin index
int recycle_idx = -1;
for (int i = 0; i < desktop_icon_count; i++) {
if (str_starts_with(desktop_icons[i].name, "Recycle Bin")) {
recycle_idx = i;
break;
}
}
// Place Recycle Bin at bottom-right of grid
if (recycle_idx != -1) {
desktop_icons[recycle_idx].x = start_x + (desktop_max_cols - 1) * 80;
desktop_icons[recycle_idx].y = start_y + (desktop_max_rows_per_col - 1) * 80;
}
for (int i = 0; i < desktop_icon_count; i++) {
if (i == recycle_idx) continue;
desktop_icons[i].x = start_x + (grid_x * 80);
desktop_icons[i].y = start_y + (grid_y * 80);
grid_y++;
if (grid_y >= desktop_max_rows_per_col) {
grid_y = 0;
grid_x++;
}
}
} else {
// Place new icons in first available spot
bool occupied[16][16] = {false};
for (int i = 0; i < desktop_icon_count; i++) {
if (desktop_icons[i].x != -1) {
int col = (desktop_icons[i].x - 20) / 80;
int row = (desktop_icons[i].y - 20) / 80;
if (col >= 0 && col < 16 && row >= 0 && row < 16) occupied[col][row] = true;
}
}
for (int i = 0; i < desktop_icon_count; i++) {
if (desktop_icons[i].x == -1) {
int found_col = -1, found_row = -1;
for (int c = 0; c < 16; c++) {
for (int r = 0; r < desktop_max_rows_per_col; r++) {
if (!occupied[c][r]) {
found_col = c; found_row = r;
goto found;
}
}
}
found:
if (found_col != -1) {
desktop_icons[i].x = 20 + found_col * 80;
desktop_icons[i].y = 20 + found_row * 80;
occupied[found_col][found_row] = true;
}
}
}
}
}
void wm_refresh_desktop(void) {
refresh_desktop_icons();
force_redraw = true;
}
static void create_desktop_shortcut(const char *app_name) {
char path[128] = "/Desktop/";
int p = 9;
int n = 0; while(app_name[n]) path[p++] = app_name[n++];
const char *ext = ".shortcut";
int e = 0; while(ext[e]) path[p++] = ext[e++];
path[p] = 0;
FAT32_FileHandle *fh = fat32_open(path, "w");
if (fh) fat32_close(fh);
refresh_desktop_icons();
}
int wm_get_desktop_icon_count(void) {
return desktop_icon_count;
}
void wm_show_message(const char *title, const char *message) {
int i=0; while(title[i] && i<63) { msg_box_title[i] = title[i]; i++; } msg_box_title[i] = 0;
i=0; while(message[i] && i<63) { msg_box_text[i] = message[i]; i++; } msg_box_text[i] = 0;
msg_box_visible = true;
force_redraw = true;
}
static void draw_icon_label(int x, int y, const char *label) {
char line1[11] = {0}; // 10 chars + null
char line2[11] = {0}; // 10 chars + null
int len = 0; while(label[len]) len++;
if (len <= 10) {
for (int i = 0; i < len; i++) line1[i] = label[i];
} else {
// Dot-based wrap: keep extension together if prefix fits
int dot_pos = -1;
for (int i = len - 1; i >= 0; i--) {
if (label[i] == '.') { dot_pos = i; break; }
}
int split = -1;
if (dot_pos != -1 && dot_pos > 0 && dot_pos <= 10) {
split = dot_pos;
} else {
// Word-based wrap: look for space in the first 11 characters
for (int i = 10; i >= 0; i--) {
if (label[i] == ' ') {
split = i;
break;
}
}
}
if (split != -1) {
for (int i = 0; i < split; i++) line1[i] = label[i];
int start2 = (label[split] == ' ') ? split + 1 : split;
int j = 0;
while (label[start2 + j] && j < 10) {
line2[j] = label[start2 + j];
j++;
}
if (label[start2 + j] != 0) {
int t = (j > 8) ? 8 : j;
line2[t] = '.'; line2[t+1] = '.'; line2[t+2] = 0;
}
} else {
for (int i = 0; i < 10; i++) line1[i] = label[i];
int j = 0;
while (label[10 + j] && j < 10) {
line2[j] = label[10 + j];
j++;
}
if (label[10 + j] != 0) {
int t = (j > 8) ? 8 : j;
line2[t] = '.'; line2[t+1] = '.'; line2[t+2] = 0;
}
}
}
// Draw Line 1 Centered in 80px cell
int l1_len = 0; while(line1[l1_len]) l1_len++;
int l1_w = l1_len * 8;
// x passed is cell left. Center is x + 40. Text start is x + 40 - w/2
draw_string(x + (80 - l1_w)/2, y + 30, line1, COLOR_WHITE);
// Draw Line 2 Centered
if (line2[0]) {
int l2_len = 0; while(line2[l2_len]) l2_len++;
int l2_w = l2_len * 8;
draw_string(x + (80 - l2_w)/2, y + 40, line2, COLOR_WHITE);
}
}
// --- Drawing Helpers ---
void draw_bevel_rect(int x, int y, int w, int h, bool sunken) {
draw_rect(x, y, w, h, COLOR_GRAY);
uint32_t top_left = sunken ? COLOR_DKGRAY : COLOR_WHITE;
uint32_t bot_right = sunken ? COLOR_WHITE : COLOR_DKGRAY;
// Top
draw_rect(x, y, w, 1, top_left);
// Left
draw_rect(x, y, 1, h, top_left);
// Bottom
draw_rect(x, y + h - 1, w, 1, bot_right);
// Right
draw_rect(x + w - 1, y, 1, h, bot_right);
}
void draw_button(int x, int y, int w, int h, const char *text, bool pressed) {
draw_bevel_rect(x, y, w, h, pressed);
// Center Text
int len = 0; while(text[len]) len++;
int tx = x + (w - (len * 8)) / 2;
int ty = y + (h - 8) / 2;
if (pressed) { tx++; ty++; }
draw_string(tx, ty, text, COLOR_BLACK);
}
void draw_coffee_cup(int x, int y, int size) {
int cup_w = size;
int cup_h = size - 2;
draw_rect(x + 1, y + 2, cup_w - 2, cup_h - 3, COLOR_LTGRAY);
// Cup outline
draw_rect(x + 1, y + 2, cup_w - 2, 1, COLOR_BLACK); // Top
draw_rect(x + 1, y + 2, 1, cup_h - 3, COLOR_BLACK); // Left
draw_rect(x + cup_w - 2, y + 2, 1, cup_h - 3, COLOR_BLACK); // Right
draw_rect(x + 1, y + cup_h - 1, cup_w - 2, 1, COLOR_BLACK); // Bottom
draw_rect(x + 1, y + cup_h - 1, 1, 1, COLOR_LTGRAY);
draw_rect(x + cup_w - 2, y + cup_h - 1, 1, 1, COLOR_LTGRAY);
draw_rect(x + cup_w, y + 3, 2, 8, COLOR_BLACK);
draw_rect(x + cup_w - 2, y + 3, 2, 1, COLOR_BLACK);
draw_rect(x + cup_w - 2, y + 10, 2, 1, COLOR_BLACK);
int stripe_height = (cup_h - 5) / 6;
int coffee_y = y + 4;
draw_rect(x + 2, coffee_y, cup_w - 4, stripe_height, COLOR_APPLE_BLUE);
draw_rect(x + 2, coffee_y + stripe_height, cup_w - 4, stripe_height, COLOR_APPLE_GREEN);
draw_rect(x + 2, coffee_y + stripe_height * 2, cup_w - 4, stripe_height, COLOR_APPLE_YELLOW);
draw_rect(x + 2, coffee_y + stripe_height * 3, cup_w - 4, stripe_height, COLOR_APPLE_RED);
draw_rect(x + 2, coffee_y + stripe_height * 4, cup_w - 4, stripe_height, COLOR_APPLE_VIOLET);
draw_rect(x + 2, coffee_y + stripe_height * 5, cup_w - 4, stripe_height, COLOR_APPLE_BLUE);
}
void draw_icon(int x, int y, const char *label) {
// Simple "File" Icon
draw_rect(x + 29, y, 20, 25, COLOR_WHITE);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Label
draw_icon_label(x, y, label);
}
void draw_folder_icon(int x, int y, const char *label) {
// Folder icon (yellow folder)
// Folder tab
draw_rect(x + 27, y, 15, 6, COLOR_LTGRAY);
draw_rect(x + 27, y, 15, 1, COLOR_BLACK);
draw_rect(x + 27, y, 1, 6, COLOR_BLACK);
draw_rect(x + 41, y, 1, 6, COLOR_BLACK);
// Folder body
draw_rect(x + 27, y + 6, 25, 15, COLOR_APPLE_YELLOW);
draw_rect(x + 27, y + 6, 25, 1, COLOR_BLACK);
draw_rect(x + 27, y + 6, 1, 15, COLOR_BLACK);
draw_rect(x + 51, y + 6, 1, 15, COLOR_BLACK);
draw_rect(x + 27, y + 20, 25, 1, COLOR_BLACK);
// Label
draw_icon_label(x, y, label);
}
void draw_document_icon(int x, int y, const char *label) {
// Document icon (white paper with lines)
draw_rect(x + 29, y, 20, 25, COLOR_WHITE);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Lines on document
draw_rect(x + 33, y + 8, 12, 1, COLOR_BLACK);
draw_rect(x + 33, y + 12, 12, 1, COLOR_BLACK);
draw_rect(x + 33, y + 16, 12, 1, COLOR_BLACK);
// Label
draw_icon_label(x, y, label);
}
void draw_notepad_icon(int x, int y, const char *label) {
// Notepad icon (Blue notebook)
draw_rect(x + 29, y, 20, 25, COLOR_BLUE);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// White page inside
draw_rect(x + 31, y + 2, 17, 22, COLOR_WHITE);
// Lines
draw_rect(x + 33, y + 6, 13, 1, COLOR_GRAY);
draw_rect(x + 33, y + 10, 13, 1, COLOR_GRAY);
draw_rect(x + 33, y + 14, 13, 1, COLOR_GRAY);
draw_icon_label(x, y, label);
}
void draw_calculator_icon(int x, int y, const char *label) {
// Calculator icon
draw_rect(x + 29, y, 20, 25, COLOR_DKGRAY);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Screen
draw_rect(x + 32, y + 3, 14, 6, COLOR_APPLE_GREEN);
// Buttons
for(int r=0; r<3; r++) {
for(int c=0; c<3; c++) {
draw_rect(x + 32 + c*5, y + 12 + r*4, 3, 2, COLOR_WHITE);
}
}
draw_icon_label(x, y, label);
}
void draw_terminal_icon(int x, int y, const char *label) {
// Terminal icon
draw_rect(x + 27, y + 2, 24, 20, COLOR_BLACK);
draw_rect(x + 27, y + 2, 24, 1, COLOR_GRAY);
draw_rect(x + 27, y + 2, 1, 20, COLOR_GRAY);
draw_rect(x + 51, y + 2, 1, 20, COLOR_GRAY);
draw_rect(x + 27, y + 22, 25, 1, COLOR_GRAY);
// Prompt
draw_rect(x + 31, y + 6, 4, 1, COLOR_APPLE_GREEN); // >
draw_rect(x + 32, y + 7, 2, 1, COLOR_APPLE_GREEN);
draw_rect(x + 31, y + 8, 4, 1, COLOR_APPLE_GREEN);
draw_rect(x + 37, y + 6, 6, 1, COLOR_APPLE_GREEN); // _
draw_icon_label(x, y, label);
}
void draw_minesweeper_icon(int x, int y, const char *label) {
// Mine icon
draw_rect(x + 29, y, 20, 25, COLOR_LTGRAY);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Mine
draw_rect(x + 36, y + 8, 6, 8, COLOR_BLACK);
draw_rect(x + 34, y + 10, 10, 4, COLOR_BLACK);
// Spikes
draw_rect(x + 39, y + 6, 1, 12, COLOR_BLACK);
draw_rect(x + 33, y + 12, 12, 1, COLOR_BLACK);
draw_icon_label(x, y, label);
}
void draw_control_panel_icon(int x, int y, const char *label) {
// Control Panel (Gear/Sliders)
draw_rect(x + 29, y, 20, 25, COLOR_GRAY);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Sliders
draw_rect(x + 34, y + 5, 2, 15, COLOR_DKGRAY);
draw_rect(x + 33, y + 10, 4, 3, COLOR_WHITE); // Knob
draw_rect(x + 42, y + 5, 2, 15, COLOR_DKGRAY);
draw_rect(x + 41, y + 16, 4, 3, COLOR_WHITE); // Knob
draw_icon_label(x, y, label);
}
void draw_about_icon(int x, int y, const char *label) {
// About icon (Info)
draw_rect(x + 29, y, 20, 25, COLOR_WHITE);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// 'i'
draw_rect(x + 38, y + 5, 3, 3, COLOR_BLUE); // Dot
draw_rect(x + 38, y + 10, 3, 10, COLOR_BLUE); // Body
draw_icon_label(x, y, label);
}
void draw_recycle_bin_icon(int x, int y, const char *label) {
// Recycle Bin (Trash can)
draw_rect(x + 29, y, 20, 25, COLOR_LTGRAY);
draw_rect(x + 29, y, 20, 1, COLOR_BLACK);
draw_rect(x + 29, y, 1, 25, COLOR_BLACK);
draw_rect(x + 49, y, 1, 25, COLOR_BLACK);
draw_rect(x + 29, y + 25, 21, 1, COLOR_BLACK);
// Ribs
draw_rect(x + 32, y + 5, 2, 15, COLOR_DKGRAY);
draw_rect(x + 38, y + 5, 2, 15, COLOR_DKGRAY);
draw_rect(x + 44, y + 5, 2, 15, COLOR_DKGRAY);
draw_icon_label(x, y, label);
}
void draw_paint_icon(int x, int y, const char *label) {
// Paint Palette Icon
draw_rect(x + 27, y + 2, 26, 20, COLOR_WHITE);
draw_rect(x + 27, y + 2, 26, 1, COLOR_BLACK);
draw_rect(x + 27, y + 2, 1, 20, COLOR_BLACK);
draw_rect(x + 52, y + 2, 1, 20, COLOR_BLACK);
draw_rect(x + 27, y + 22, 26, 1, COLOR_BLACK);
// Color dots
draw_rect(x + 30, y + 5, 4, 4, COLOR_RED);
draw_rect(x + 38, y + 5, 4, 4, COLOR_APPLE_GREEN);
draw_rect(x + 46, y + 5, 4, 4, COLOR_APPLE_BLUE);
draw_rect(x + 30, y + 13, 4, 4, COLOR_APPLE_YELLOW);
draw_rect(x + 38, y + 13, 4, 4, COLOR_PURPLE);
draw_icon_label(x, y, label);
}
void draw_window(Window *win) {
if (!win->visible) return;
// Main Body
draw_bevel_rect(win->x, win->y, win->w, win->h, false);
// Title Bar
uint32_t title_color = win->focused ? COLOR_RED : COLOR_DKGRAY;
draw_rect(win->x + 3, win->y + 3, win->w - 6, 18, title_color);
draw_string(win->x + 8, win->y + 8, win->title, COLOR_WHITE);
// Close Button (X)
draw_button(win->x + win->w - 20, win->y + 5, 14, 14, "X", false);
// Client Area
draw_rect(win->x + 4, win->y + 24, win->w - 8, win->h - 28, COLOR_LTGRAY);
if (win->paint) {
win->paint(win);
}
}
// Draw Mouse Cursor (Simple Arrow)
void draw_cursor(int x, int y) {
// 0 = Transparent (skip), 1 = Black, 2 = White
static const uint8_t cursor_bitmap[10][10] = {
{1,1,0,0,0,0,0,0,0,0},
{1,2,1,0,0,0,0,0,0,0},
{1,2,2,1,0,0,0,0,0,0},
{1,2,2,2,1,0,0,0,0,0},
{1,2,2,2,2,1,0,0,0,0},
{1,2,2,2,2,2,1,0,0,0},
{1,2,2,1,1,1,1,0,0,0},
{1,1,1,0,1,2,1,0,0,0},
{0,0,0,0,0,1,2,1,0,0},
{0,0,0,0,0,0,1,0,0,0}
};
for (int r = 0; r < 10; r++) {
for (int c = 0; c < 10; c++) {
uint8_t p = cursor_bitmap[r][c];
if (p == 1) put_pixel(x + c, y + r, COLOR_BLACK);
else if (p == 2) put_pixel(x + c, y + r, COLOR_WHITE);
}
}
}
// Erase cursor by redrawing the background in that area
static void erase_cursor(int x, int y) {
int sw = get_screen_width();
int sh = get_screen_height();
// Clamp to screen
int x1 = x < 0 ? 0 : x;
int y1 = y < 0 ? 0 : y;
int x2 = x + 10 > sw ? sw : x + 10;
int y2 = y + 10 > sh ? sh : y + 10;
int w = x2 - x1;
int h = y2 - y1;
// Check what's underneath the cursor and redraw it
if (y1 < sh - 28) {
// Desktop or window area - draw teal background
draw_rect(x1, y1, w, h, COLOR_TEAL);
} else {
// Taskbar
draw_rect(x1, y1, w, h, COLOR_GRAY);
}
}
// --- Clock ---
static uint8_t rtc_read(uint8_t reg) {
outb(0x70, reg);
return inb(0x71);
}
static void draw_clock(int x, int y) {
// Wait for update in progress
while (rtc_read(0x0A) & 0x80);
uint8_t s = rtc_read(0x00);
uint8_t m = rtc_read(0x02);
uint8_t h = rtc_read(0x04);
uint8_t b = rtc_read(0x0B);
if (!(b & 0x04)) {
s = (s & 0x0F) + ((s >> 4) * 10);
m = (m & 0x0F) + ((m >> 4) * 10);
h = (h & 0x0F) + ((h >> 4) * 10);
}
char buf[9];
buf[0] = '0' + (h / 10);
buf[1] = '0' + (h % 10);
buf[2] = ':';
buf[3] = '0' + (m / 10);
buf[4] = '0' + (m % 10);
buf[5] = ':';
buf[6] = '0' + (s / 10);
buf[7] = '0' + (s % 10);
buf[8] = 0;
draw_string(x, y, buf, COLOR_BLACK);
}
// --- Main Paint Function ---
void wm_paint(void) {
int sw = get_screen_width();
int sh = get_screen_height();
// Ensure no stale clipping state interferes with the new frame
graphics_clear_clipping();
// First, erase the old cursor (before redrawing anything)
if (cursor_visible) {
erase_cursor(last_cursor_x, last_cursor_y);
}
// 1. Desktop
draw_desktop_background();
// Draw Desktop Icons
for (int i = 0; i < desktop_icon_count; i++) {
DesktopIcon *icon = &desktop_icons[i];
if (icon->type == 1) draw_folder_icon(icon->x, icon->y, icon->name);
else if (icon->type == 2) {
// App icon - strip .app for display
char label[64];
int len = 0;
while(icon->name[len] && len < 63) { label[len] = icon->name[len]; len++; }
label[len] = 0;
// Remove .app suffix if present
if (len > 9 && str_ends_with(label, ".shortcut")) {
label[len-9] = 0;
}
if (str_starts_with(icon->name, "Notepad")) draw_notepad_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Calculator")) draw_calculator_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Terminal")) draw_terminal_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Minesweeper")) draw_minesweeper_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Control Panel")) draw_control_panel_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "About")) draw_about_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Recycle Bin")) draw_recycle_bin_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Explorer")) draw_folder_icon(icon->x, icon->y, label);
else if (str_starts_with(icon->name, "Paint")) draw_paint_icon(icon->x, icon->y, label);
else draw_icon(icon->x, icon->y, label);
} else {
if (str_ends_with(icon->name, ".pnt")) draw_paint_icon(icon->x, icon->y, icon->name);
else if (str_ends_with(icon->name, ".md")) {
draw_document_icon(icon->x, icon->y, icon->name);
draw_string(icon->x + 31, icon->y + 2, "MD", COLOR_BLACK);
} else if (str_ends_with(icon->name, ".c") || str_ends_with(icon->name, ".C")) {
draw_document_icon(icon->x, icon->y, icon->name);
draw_string(icon->x + 31, icon->y + 2, "C", COLOR_APPLE_BLUE);
}
else draw_document_icon(icon->x, icon->y, icon->name);
}
}
// 3. Windows - sort by z-index and draw
// Simple bubble sort by z-index
Window *sorted_windows[32];
for (int i = 0; i < window_count; i++) {
sorted_windows[i] = all_windows[i];
}
for (int i = 0; i < window_count - 1; i++) {
for (int j = 0; j < window_count - i - 1; j++) {
if (sorted_windows[j]->z_index > sorted_windows[j + 1]->z_index) {
Window *temp = sorted_windows[j];
sorted_windows[j] = sorted_windows[j + 1];
sorted_windows[j + 1] = temp;
}
}
}
// Draw windows in z-order (lowest first)
for (int i = 0; i < window_count; i++) {
draw_window(sorted_windows[i]);
}
// 4. Taskbar
draw_rect(0, sh - 28, sw, 28, COLOR_GRAY);
draw_rect(0, sh - 28, sw, 2, COLOR_WHITE); // Top highlight
// 5. Start Button
draw_bevel_rect(2, sh - 26, 90, 24, start_menu_open);
// Draw BrewOS logo
draw_coffee_cup(5, sh - 24, 20);
// Draw BrewOS text
draw_string(35, sh - 18, "BrewOS", COLOR_BLACK);
// Clock
draw_clock(sw - 80, sh - 20);
// 6. Start Menu (if open)
if (start_menu_open) {
int menu_h = 250;
int menu_y = sh - 28 - menu_h;
draw_bevel_rect(0, menu_y, 120, menu_h, false);
// Items
draw_string(8, menu_y + 8, "Explorer", COLOR_BLACK);
draw_string(8, menu_y + 28, "Notepad", COLOR_BLACK);
draw_string(8, menu_y + 48, "Editor", COLOR_BLACK);
draw_string(8, menu_y + 68, "CMD", COLOR_BLACK);
draw_string(8, menu_y + 88, "Calculator", COLOR_BLACK);
draw_string(8, menu_y + 108, "Minesweeper", COLOR_BLACK);
draw_string(8, menu_y + 128, "Control Panel", COLOR_BLACK);
draw_string(8, menu_y + 148, "Paint", COLOR_BLACK);
draw_string(8, menu_y + 168, "About BrewOS", COLOR_BLACK);
// Separator line
draw_rect(5, menu_y + 185, 110, 1, COLOR_BLACK);
// Power options at bottom
draw_string(8, menu_y + 195, "Shutdown", COLOR_BLACK);
draw_string(8, menu_y + 215, "Restart", COLOR_BLACK);
}
// Desktop Context Menu
if (desktop_menu_visible) {
int menu_w = 140;
int item_h = 25;
int menu_h = (desktop_menu_target_icon != -1) ? 125 : 75;
draw_rect(desktop_menu_x, desktop_menu_y, menu_w, menu_h, COLOR_LTGRAY);
draw_bevel_rect(desktop_menu_x, desktop_menu_y, menu_w, menu_h, true);
if (desktop_menu_target_icon != -1) {
bool can_paste = explorer_clipboard_has_content();
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
if (icon->type != 1) can_paste = false; // 1 is folder
draw_string(desktop_menu_x + 5, desktop_menu_y + 5, "Cut", COLOR_BLACK);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h, "Copy", COLOR_BLACK);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h * 2, "Paste", can_paste ? COLOR_BLACK : COLOR_DKGRAY);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h * 3, "Delete", COLOR_RED);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h * 4, "Rename", COLOR_BLACK);
} else {
bool can_paste = explorer_clipboard_has_content();
draw_string(desktop_menu_x + 5, desktop_menu_y + 5, "New File", COLOR_BLACK);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h, "New Folder", COLOR_BLACK);
draw_string(desktop_menu_x + 5, desktop_menu_y + 5 + item_h * 2, "Paste", can_paste ? COLOR_BLACK : COLOR_DKGRAY);
}
}
// Desktop Dialogs
if (desktop_dialog_state != 0) {
int dlg_w = 300; int dlg_h = 110;
int dlg_x = (sw - dlg_w) / 2;
int dlg_y = (sh - dlg_h) / 2;
draw_rect(dlg_x - 5, dlg_y - 5, dlg_w + 10, dlg_h + 10, COLOR_LTGRAY);
draw_bevel_rect(dlg_x, dlg_y, dlg_w, dlg_h, true);
const char *title = "Rename";
const char *btn_text = "Rename";
if (desktop_dialog_state == 1) { title = "Create New File"; btn_text = "Create"; }
else if (desktop_dialog_state == 2) { title = "Create New Folder"; btn_text = "Create"; }
draw_string(dlg_x + 10, dlg_y + 10, title, COLOR_BLACK);
draw_bevel_rect(dlg_x + 10, dlg_y + 35, 280, 20, false);
draw_string(dlg_x + 15, dlg_y + 40, desktop_dialog_input, COLOR_BLACK);
// Cursor
draw_rect(dlg_x + 15 + desktop_dialog_cursor * 8, dlg_y + 39, 2, 12, COLOR_BLACK);
draw_button(dlg_x + 50, dlg_y + 65, 80, 25, btn_text, false);
draw_button(dlg_x + 170, dlg_y + 65, 80, 25, "Cancel", false);
}
// Message Box
if (msg_box_visible) {
int mw = 320;
int mh = 100;
int mx = (sw - mw) / 2;
int my = (sh - mh) / 2;
draw_rect(mx, my, mw, mh, COLOR_LTGRAY);
draw_bevel_rect(mx, my, mw, mh, false);
draw_rect(mx + 3, my + 3, mw - 6, 20, COLOR_BLUE);
draw_string(mx + 8, my + 8, msg_box_title, COLOR_WHITE);
draw_string(mx + 10, my + 40, msg_box_text, COLOR_BLACK);
draw_button(mx + mw/2 - 30, my + 70, 60, 20, "OK", false);
}
// Custom Overlay (VM Graphics)
if (wm_custom_paint_hook) {
wm_custom_paint_hook();
}
// Draw Dragged Icon
if (is_dragging_file) {
// Extract filename for label
// Just draw a generic icon at mouse pos
if (drag_icon_type == 1) draw_folder_icon(mx - 20, my - 20, "Moving...");
else if (drag_icon_type == 2) draw_icon(mx - 20, my - 20, "Moving...");
else draw_document_icon(mx - 20, my - 20, "Moving...");
}
// 7. Mouse cursor (draw last so it's on top)
draw_cursor(mx, my);
last_cursor_x = mx;
last_cursor_y = my;
// Flip the buffer - display the rendered frame atomically
graphics_flip_buffer();
}
// --- Input Handling ---
bool rect_contains(int x, int y, int w, int h, int px, int py) {
return px >= x && px < x + w && py >= y && py < y + h;
}
void wm_bring_to_front(Window *win) {
// Clear focus from all windows
for (int i = 0; i < window_count; i++) {
all_windows[i]->focused = false;
}
// Find current max z-index
int max_z = 0;
for (int i = 0; i < window_count; i++) {
if (all_windows[i]->z_index > max_z) max_z = all_windows[i]->z_index;
}
win->visible = true;
win->focused = true;
win->z_index = max_z + 1;
}
void wm_add_window(Window *win) {
if (window_count < 32) {
all_windows[window_count++] = win;
}
}
void wm_handle_click(int x, int y) {
int sh = get_screen_height();
int sw = get_screen_width();
if (msg_box_visible) {
int mw = 320;
int mh = 100;
int mx = (sw - mw) / 2;
int my = (sh - mh) / 2;
if (rect_contains(mx + mw/2 - 30, my + 70, 60, 20, x, y)) {
msg_box_visible = false;
force_redraw = true;
}
return;
}
// Handle Desktop Context Menu Click
if (desktop_menu_visible) {
int menu_w = 140;
int menu_h = (desktop_menu_target_icon != -1) ? 125 : 75;
if (rect_contains(desktop_menu_x, desktop_menu_y, menu_w, menu_h, x, y)) {
int rel_y = y - desktop_menu_y;
int item = rel_y / 25;
if (item == 0 && desktop_menu_target_icon != -1) { // Cut
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
explorer_clipboard_cut(path);
} else if (item == 1 && desktop_menu_target_icon != -1) { // Copy
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
explorer_clipboard_copy(path);
} else if (item == 0 && desktop_menu_target_icon == -1) { // New File
desktop_dialog_state = 1;
desktop_dialog_input[0] = 0;
desktop_dialog_cursor = 0;
} else if (item == 1 && desktop_menu_target_icon == -1) { // New Folder
desktop_dialog_state = 2;
desktop_dialog_input[0] = 0;
desktop_dialog_cursor = 0;
} else if (item == 2) { // Paste
bool can_paste = explorer_clipboard_has_content();
if (desktop_menu_target_icon != -1) {
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
if (icon->type != 1) can_paste = false;
}
if (can_paste) {
int old_count = desktop_icon_count;
if (desktop_menu_target_icon != -1 && desktop_icons[desktop_menu_target_icon].type == 1) {
// Paste into folder
char path[128] = "/Desktop/";
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
explorer_clipboard_paste(&win_explorer, path);
} else {
// Paste to desktop
explorer_clipboard_paste(&win_explorer, "/Desktop");
}
refresh_desktop_icons();
// If auto-align is OFF and we pasted to the background, place at click location
if (!desktop_auto_align && desktop_icon_count > old_count && desktop_menu_target_icon == -1) {
int new_idx = desktop_icon_count - 1;
desktop_icons[new_idx].x = desktop_menu_x - 20;
desktop_icons[new_idx].y = desktop_menu_y - 20;
if (desktop_snap_to_grid) {
int col = (desktop_icons[new_idx].x - 20 + 40) / 80;
int row = (desktop_icons[new_idx].y - 20 + 40) / 80;
if (col < 0) col = 0; if (row < 0) row = 0;
desktop_icons[new_idx].x = 20 + col * 80;
desktop_icons[new_idx].y = 20 + row * 80;
}
}
}
}
else if (item == 3 && desktop_menu_target_icon != -1) { // Delete
DesktopIcon *icon = &desktop_icons[desktop_menu_target_icon];
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
explorer_delete_recursive(path);
refresh_desktop_icons();
}
else if (item == 4 && desktop_menu_target_icon != -1) { // Rename
desktop_dialog_state = 8;
desktop_dialog_target = desktop_menu_target_icon;
int k=0; while(desktop_icons[desktop_dialog_target].name[k]) {
desktop_dialog_input[k] = desktop_icons[desktop_dialog_target].name[k];
k++;
}
desktop_dialog_input[k] = 0;
desktop_dialog_cursor = k;
}
}
desktop_menu_visible = false;
force_redraw = true;
return;
}
// Handle Desktop Dialog Clicks
if (desktop_dialog_state != 0) {
int dlg_x = (sw - 300) / 2; int dlg_y = (sh - 110) / 2;
if (rect_contains(dlg_x + 50, dlg_y + 65, 80, 25, x, y)) { // Confirm
if (desktop_dialog_state == 8) { // Rename
char old_path[128] = "/Desktop/";
char new_path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_icons[desktop_dialog_target].name[n]) old_path[p++] = desktop_icons[desktop_dialog_target].name[n++]; old_path[p]=0;
p=9; n=0; while(desktop_dialog_input[n]) new_path[p++] = desktop_dialog_input[n++]; new_path[p]=0;
if (fat32_rename(old_path, new_path)) {
refresh_desktop_icons();
explorer_refresh_all();
}
} else if (desktop_dialog_state == 1 || desktop_dialog_state == 2) { // Create File/Folder
if (desktop_icon_count >= desktop_max_cols * desktop_max_rows_per_col) {
wm_show_message("Error", "Desktop is full!");
} else if (desktop_dialog_input[0] != 0) {
char path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_dialog_input[n]) path[p++] = desktop_dialog_input[n++]; path[p]=0;
if (desktop_dialog_state == 1) {
FAT32_FileHandle *fh = fat32_open(path, "w");
if (fh) fat32_close(fh);
} else {
fat32_mkdir(path);
}
refresh_desktop_icons();
explorer_refresh_all();
}
}
desktop_dialog_state = 0;
force_redraw = true;
return;
}
if (rect_contains(dlg_x + 170, dlg_y + 65, 80, 25, x, y)) { // Cancel
desktop_dialog_state = 0;
force_redraw = true;
return;
}
if (rect_contains(dlg_x + 10, dlg_y + 35, 280, 20, x, y)) {
desktop_dialog_cursor = (x - dlg_x - 15) / 8;
int len = 0; while(desktop_dialog_input[len]) len++;
if (desktop_dialog_cursor > len) desktop_dialog_cursor = len;
force_redraw = true;
return;
}
}
// Check Start Button
if (rect_contains(2, sh - 26, 90, 24, x, y)) {
start_menu_open = !start_menu_open;
force_redraw = true;
pending_desktop_icon_click = -1;
return;
}
// Start Menu items handled in wm_handle_mouse (on up/drag) to support dragging shortcuts.
// Find topmost window at click location
Window *topmost = NULL;
int topmost_z = -1;
for (int i = 0; i < window_count; i++) {
Window *win = all_windows[i];
if (win->visible && rect_contains(win->x, win->y, win->w, win->h, x, y)) {
if (win->z_index > topmost_z) {
topmost = win;
topmost_z = win->z_index;
}
}
}
// If a window was clicked
if (topmost != NULL) {
wm_bring_to_front(topmost);
// Check close button
if (rect_contains(topmost->x + topmost->w - 20, topmost->y + 5, 14, 14, x, y)) {
topmost->visible = false;
// Reset window state on close
if (topmost == &win_explorer) {
explorer_reset();
} else if (topmost == &win_notepad) {
notepad_reset();
} else if (topmost == &win_control_panel) {
control_panel_reset();
} else if (topmost == &win_paint) {
paint_reset();
}
} else if (y < topmost->y + 24) {
// Dragging the title bar
is_dragging = true;
drag_window = topmost;
drag_offset_x = x - topmost->x;
drag_offset_y = y - topmost->y;
} else {
// Content click
if (topmost->handle_click) {
topmost->handle_click(topmost, x - topmost->x, y - topmost->y);
}
}
pending_desktop_icon_click = -1;
} else {
// No window clicked - check desktop icons
// Clear focus from all windows first
for (int w = 0; w < window_count; w++) {
all_windows[w]->focused = false;
}
pending_desktop_icon_click = -1;
for (int i = 0; i < desktop_icon_count; i++) {
DesktopIcon *icon = &desktop_icons[i];
if (rect_contains(icon->x + 20, icon->y, 40, 40, x, y)) {
// Handle click - Defer to mouse up to allow dragging
pending_desktop_icon_click = i;
return;
}
}
}
// Close start menu if clicked elsewhere
if (start_menu_open) {
start_menu_open = false;
}
force_redraw = true;
}
// Handle right click (context menu or special actions)
void wm_handle_right_click(int x, int y) {
desktop_menu_visible = false; // Close if open
// Find topmost window at click location
Window *topmost = NULL;
int topmost_z = -1;
for (int i = 0; i < window_count; i++) {
Window *win = all_windows[i];
if (win->visible && rect_contains(win->x, win->y, win->w, win->h, x, y)) {
if (win->z_index > topmost_z) {
topmost = win;
topmost_z = win->z_index;
}
}
}
// If a window was clicked
if (topmost != NULL) {
// Don't process close button or title bar for right click
if (y >= topmost->y + 24) {
// Content right click
if (topmost->handle_right_click) {
topmost->handle_right_click(topmost, x - topmost->x, y - topmost->y);
}
}
} else {
// Desktop Right Click
desktop_menu_visible = true;
desktop_menu_x = x;
desktop_menu_y = y;
desktop_menu_target_icon = -1;
// Check if clicked on an icon
for (int i = 0; i < desktop_icon_count; i++) {
if (rect_contains(desktop_icons[i].x + 20, desktop_icons[i].y, 40, 40, x, y)) {
desktop_menu_target_icon = i;
break;
}
}
}
force_redraw = true;
}void wm_handle_mouse(int dx, int dy, uint8_t buttons) {
int sw = get_screen_width();
int sh = get_screen_height();
prev_mx = mx;
prev_my = my;
mx += dx;
my += dy;
if (mx < 0) mx = 0;
if (my < 0) my = 0;
if (mx >= sw) mx = sw - 1;
if (my >= sh) my = sh - 1;
static bool prev_left = false;
static bool prev_right = false;
bool left = buttons & 0x01;
bool right = buttons & 0x02;
if (left && !prev_left) {
// Mouse Down
drag_start_x = mx;
drag_start_y = my;
if (win_paint.focused && win_paint.visible) {
paint_reset_last_pos();
}
// Check Start Menu for potential drag
if (start_menu_open) {
int menu_h = 250;
int menu_y = sh - 28 - menu_h;
if (rect_contains(0, menu_y, 120, menu_h, mx, my)) {
if (my < menu_y + 25) start_menu_pending_app = "Explorer";
else if (my < menu_y + 45) start_menu_pending_app = "Notepad";
else if (my < menu_y + 65) start_menu_pending_app = "Editor";
else if (my < menu_y + 85) start_menu_pending_app = "Terminal";
else if (my < menu_y + 105) start_menu_pending_app = "Calculator";
else if (my < menu_y + 125) start_menu_pending_app = "Minesweeper";
else if (my < menu_y + 145) start_menu_pending_app = "Control Panel";
else if (my < menu_y + 165) start_menu_pending_app = "Paint";
else if (my < menu_y + 185) start_menu_pending_app = "About";
else if (my < menu_y + 205) start_menu_pending_app = "Shutdown";
else start_menu_pending_app = "Restart";
} else {
wm_handle_click(mx, my);
}
} else {
wm_handle_click(mx, my);
}
} else if (right && !prev_right) {
wm_handle_right_click(mx, my);
} else if (left && win_paint.focused && win_paint.visible && !is_dragging) {
int rel_x = mx - win_paint.x;
int rel_y = my - win_paint.y;
paint_handle_mouse(rel_x, rel_y);
force_redraw = true;
} else if (left && is_dragging && drag_window) {
drag_window->x = mx - drag_offset_x;
drag_window->y = my - drag_offset_y;
// Mark for full redraw since window moved
force_redraw = true;
} else if (left && !is_dragging && !is_dragging_file && (dx != 0 || dy != 0)) {
// Check deadzone
int dist_x = mx - drag_start_x;
int dist_y = my - drag_start_y;
if (dist_x < 0) dist_x = -dist_x;
if (dist_y < 0) dist_y = -dist_y;
if (dist_x >= 5 || dist_y >= 5) {
// Check for Start Menu Drag
if (start_menu_pending_app) {
// Start dragging app from start menu
is_dragging_file = true;
drag_icon_type = 2;
// Construct special path for app drag
char *p = drag_file_path;
const char *prefix = "::APP::";
while(*prefix) *p++ = *prefix++;
char *n = start_menu_pending_app;
while(*n) *p++ = *n++;
*p = 0;
start_menu_pending_app = NULL;
}
// Mouse moving with left button, check for file drag start
// 1. Check Desktop Icons
if (pending_desktop_icon_click != -1) {
int i = pending_desktop_icon_click;
DesktopIcon *icon = &desktop_icons[i];
is_dragging_file = true;
drag_icon_type = icon->type;
pending_desktop_icon_click = -1; // Cancel pending click since we are dragging
drag_icon_orig_x = icon->x;
drag_icon_orig_y = icon->y;
// Construct path
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
int k=0; while(path[k]) { drag_file_path[k] = path[k]; k++; } drag_file_path[k]=0;
}
// 2. Check Explorer Items
if (!is_dragging_file) {
bool is_dir;
if (explorer_get_file_at(drag_start_x, drag_start_y, drag_file_path, &is_dir)) {
is_dragging_file = true;
drag_icon_type = is_dir ? 1 : 0;
drag_src_win = NULL;
// Find which explorer window was clicked to clear its state
for (int w = 0; w < window_count; w++) {
Window *win = all_windows[w];
if (win->visible && rect_contains(win->x, win->y, win->w, win->h, drag_start_x, drag_start_y)) {
// This is a bit of a hack, but we check if it's an explorer window
if (str_starts_with(win->title, "File Explorer")) {
drag_src_win = win;
explorer_clear_click_state(win);
}
}
}
}
}
if (is_dragging_file) force_redraw = true;
}
} else if (!left) {
if (is_dragging) {
is_dragging = false;
drag_window = NULL;
force_redraw = true;
}
// Handle Start Menu Click (Mouse Up without Drag)
if (start_menu_pending_app) {
// Launch App
if (str_starts_with(start_menu_pending_app, "Explorer")) {
explorer_open_directory("/");
} else if (str_starts_with(start_menu_pending_app, "Notepad")) {
wm_bring_to_front(&win_notepad);
} else if (str_starts_with(start_menu_pending_app, "Editor")) {
wm_bring_to_front(&win_editor);
} else if (str_starts_with(start_menu_pending_app, "Terminal")) {
cmd_reset(); wm_bring_to_front(&win_cmd);
} else if (str_starts_with(start_menu_pending_app, "Calculator")) {
wm_bring_to_front(&win_calculator);
} else if (str_starts_with(start_menu_pending_app, "Minesweeper")) {
wm_bring_to_front(&win_minesweeper);
} else if (str_starts_with(start_menu_pending_app, "Control Panel")) {
wm_bring_to_front(&win_control_panel);
} else if (str_starts_with(start_menu_pending_app, "Paint")) {
wm_bring_to_front(&win_paint);
} else if (str_starts_with(start_menu_pending_app, "About")) {
wm_bring_to_front(&win_about);
} else if (str_starts_with(start_menu_pending_app, "Shutdown")) {
cli_cmd_shutdown(NULL);
} else if (str_starts_with(start_menu_pending_app, "Restart")) {
cli_cmd_reboot(NULL);
}
start_menu_open = false;
start_menu_pending_app = NULL;
force_redraw = true;
}
// Handle Desktop Icon Click (Mouse Up)
if (pending_desktop_icon_click != -1) {
int i = pending_desktop_icon_click;
if (i < desktop_icon_count) {
DesktopIcon *icon = &desktop_icons[i];
if (icon->type == 2) { // App Shortcut
// Check name to launch app
if (str_ends_with(icon->name, "Notepad.shortcut")) {
notepad_reset(); wm_bring_to_front(&win_notepad);
} else if (str_ends_with(icon->name, "Calculator.shortcut")) {
wm_bring_to_front(&win_calculator);
} else if (str_ends_with(icon->name, "Minesweeper.shortcut")) {
wm_bring_to_front(&win_minesweeper);
} else if (str_ends_with(icon->name, "Control Panel.shortcut")) {
wm_bring_to_front(&win_control_panel);
} else if (str_ends_with(icon->name, "Terminal.shortcut")) {
wm_bring_to_front(&win_cmd);
} else if (str_ends_with(icon->name, "About.shortcut")) {
wm_bring_to_front(&win_about);
} else if (str_ends_with(icon->name, "Explorer.shortcut")) {
explorer_open_directory("/");
} else if (str_ends_with(icon->name, "Recycle Bin.shortcut")) {
explorer_open_directory("/RecycleBin");
} else if (str_ends_with(icon->name, "Paint.shortcut")) {
wm_bring_to_front(&win_paint);
}
// Generic Shortcut Handling
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
if (str_ends_with(icon->name, ".shortcut") && !str_starts_with(icon->name, "Recycle Bin")) {
FAT32_FileHandle *fh = fat32_open(path, "r");
if (fh) {
char buf[256];
int len = fat32_read(fh, buf, 255);
fat32_close(fh);
if (len > 0) {
buf[len] = 0;
if (fat32_is_directory(buf)) {
explorer_open_directory(buf);
} else {
editor_open_file(buf);
wm_bring_to_front(&win_editor);
}
pending_desktop_icon_click = -1;
return;
}
}
}
} else if (icon->type == 1) { // Folder
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
explorer_open_directory(path);
} else { // File
char path[128] = "/Desktop/";
int p=9; int n=0; while(icon->name[n]) path[p++] = icon->name[n++]; path[p]=0;
if (str_ends_with(icon->name, ".pnt")) {
paint_load(path);
wm_bring_to_front(&win_paint);
} else if (str_ends_with(icon->name, ".md")) {
markdown_open_file(path);
wm_bring_to_front(&win_markdown);
} else {
editor_open_file(path);
wm_bring_to_front(&win_editor);
}
}
}
pending_desktop_icon_click = -1;
}
if (is_dragging_file) {
// Drop logic
// Check drop target - iterate through all windows to find if dropped on an Explorer
Window *drop_win = NULL;
int topmost_z = -1;
for (int w = 0; w < window_count; w++) {
Window *win = all_windows[w];
if (win->visible && rect_contains(win->x, win->y, win->w, win->h, mx, my)) {
if (win->z_index > topmost_z && str_starts_with(win->title, "File Explorer")) {
drop_win = win;
topmost_z = win->z_index;
}
}
}
if (drop_win) {
char target_path[256];
bool is_dir;
// Check if dropped on a folder inside this explorer
if (explorer_get_file_at(mx, my, target_path, &is_dir) && is_dir) {
explorer_import_file_to(drop_win, drag_file_path, target_path);
} else {
// Dropped in current dir of this explorer
explorer_import_file(drop_win, drag_file_path);
}
if (str_starts_with(drag_file_path, "/Desktop/")) {
refresh_desktop_icons();
}
} else {
// Dropped on Desktop (or elsewhere)
if (drag_file_path[0] == ':' && drag_file_path[1] == ':' && drag_file_path[2] == 'A') {
// Dropped Start Menu App -> Create Shortcut
create_desktop_shortcut(drag_file_path + 7); // Skip ::APP::
} else {
// If source was NOT desktop, move to desktop
// Check if path starts with /Desktop/
bool from_desktop = (drag_file_path[0]=='/' && drag_file_path[1]=='D' && drag_file_path[2]=='e');
bool dropped_on_target = false;
for (int i = 0; i < desktop_icon_count; i++) {
if (from_desktop) {
char path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_icons[i].name[n]) path[p++] = desktop_icons[i].name[n++]; path[p]=0;
if (str_eq(path, drag_file_path) == 0) continue;
}
if (rect_contains(desktop_icons[i].x + 20, desktop_icons[i].y, 40, 40, mx, my)) {
if (desktop_icons[i].type == 1) {
char target_path[256] = "/Desktop/";
int p=9; int n=0; while(desktop_icons[i].name[n]) target_path[p++] = desktop_icons[i].name[n++]; target_path[p]=0;
explorer_import_file_to(&win_explorer, drag_file_path, target_path);
refresh_desktop_icons();
dropped_on_target = true;
break;
} else if (desktop_icons[i].type == 2 && str_starts_with(desktop_icons[i].name, "Recycle Bin")) {
explorer_import_file_to(&win_explorer, drag_file_path, "/RecycleBin");
refresh_desktop_icons();
dropped_on_target = true;
break;
} else {
dropped_on_target = true;
break;
}
}
}
if (!dropped_on_target && !from_desktop) {
// Dragged from Explorer to Desktop
// Check limit first
if (desktop_icon_count >= desktop_max_cols * desktop_max_rows_per_col) {
wm_show_message("Error", "Desktop is full!");
} else {
explorer_import_file_to(&win_explorer, drag_file_path, "/Desktop");
}
// Handle insertion at specific position
char filename[64];
int len = 0; while(drag_file_path[len]) len++;
int s = len - 1; while(s >= 0 && drag_file_path[s] != '/') s--;
s++;
int d = 0; while(drag_file_path[s] && d < 63) filename[d++] = drag_file_path[s++];
filename[d] = 0;
if (desktop_auto_align && !msg_box_visible) {
int new_idx = -1;
for(int i=0; i<desktop_icon_count; i++) {
if (str_eq(desktop_icons[i].name, filename) == 0) {
new_idx = i;
break;
}
}
if (new_idx != -1) {
int target_col = (mx - 20) / 80;
int target_row = (my - 20) / 80;
if (target_col < 0) target_col = 0;
if (target_row < 0) target_row = 0;
int target_idx = target_col * desktop_max_rows_per_col + target_row;
if (target_idx >= desktop_icon_count) target_idx = desktop_icon_count - 1;
// Move new_idx to target_idx
DesktopIcon temp = desktop_icons[new_idx];
// Shift down to make space
for (int i = new_idx; i > target_idx; i--) desktop_icons[i] = desktop_icons[i-1];
desktop_icons[target_idx] = temp;
refresh_desktop_icons(); // Re-apply layout
}
} else if (!desktop_auto_align && !msg_box_visible) {
for(int i=0; i<desktop_icon_count; i++) {
if (str_eq(desktop_icons[i].name, filename) == 0) {
desktop_icons[i].x = mx - 20;
desktop_icons[i].y = my - 20;
if (desktop_snap_to_grid) {
int col = (desktop_icons[i].x - 20 + 40) / 80;
int row = (desktop_icons[i].y - 20 + 40) / 80;
if (col < 0) col = 0; if (row < 0) row = 0;
desktop_icons[i].x = 20 + col * 80;
desktop_icons[i].y = 20 + row * 80;
}
break;
}
}
}
} else if (!dropped_on_target) {
// Moved within desktop
// Find which icon was dragged
int dragged_idx = -1;
for(int i=0; i<desktop_icon_count; i++) {
char path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_icons[i].name[n]) path[p++] = desktop_icons[i].name[n++]; path[p]=0;
if (str_eq(path, drag_file_path) == 0) {
dragged_idx = i;
break;
}
}
if (dragged_idx != -1) {
if (desktop_auto_align) {
int cell_h = 80;
int rel_y = my - 20;
if (rel_y < 0) rel_y = 0;
int target_col = (mx - 20) / 80;
if (target_col < 0) target_col = 0;
int target_row = rel_y / cell_h;
int row_offset = rel_y % cell_h;
// 20% threshold logic: Only insert "before" if in the top 20%
if (row_offset > (int)(cell_h * 0.2)) {
target_row++;
}
int target_idx = target_col * desktop_max_rows_per_col + target_row;
if (target_idx >= desktop_icon_count) target_idx = desktop_icon_count - 1;
// Shift items
DesktopIcon temp = desktop_icons[dragged_idx];
if (target_idx > dragged_idx) {
for (int i = dragged_idx; i < target_idx; i++) desktop_icons[i] = desktop_icons[i+1];
} else {
for (int i = dragged_idx; i > target_idx; i--) desktop_icons[i] = desktop_icons[i-1];
}
desktop_icons[target_idx] = temp;
refresh_desktop_icons(); // Re-applies layout
} else {
desktop_icons[dragged_idx].x = mx - 20;
desktop_icons[dragged_idx].y = my - 20;
if (desktop_snap_to_grid) {
int col = (desktop_icons[dragged_idx].x - 20 + 40) / 80;
int row = (desktop_icons[dragged_idx].y - 20 + 40) / 80;
if (col < 0) col = 0;
if (row < 0) row = 0;
desktop_icons[dragged_idx].x = 20 + col * 80;
desktop_icons[dragged_idx].y = 20 + row * 80;
}
// Check for collision with other icons
// Folders already checked above, this is for overlap prevention
for (int i = 0; i < desktop_icon_count; i++) {
if (i == dragged_idx) continue;
// Simple distance check or rect overlap
int dx = desktop_icons[i].x - desktop_icons[dragged_idx].x;
int dy = desktop_icons[i].y - desktop_icons[dragged_idx].y;
if (dx < 0) dx = -dx;
if (dy < 0) dy = -dy;
if (dx < 35 && dy < 35) {
// Collision with non-folder (or we would have handled it)
// Revert position
desktop_icons[dragged_idx].x = drag_icon_orig_x;
desktop_icons[dragged_idx].y = drag_icon_orig_y;
break;
}
}
}
}
}
}
}
is_dragging_file = false;
force_redraw = true;
}
}
if (is_dragging_file) {
force_redraw = true;
}
prev_left = left;
prev_right = right;
if (prev_mx != mx || prev_my != my) {
// Cursor moved - just mark dirty cursor areas
wm_mark_dirty(prev_mx, prev_my, 10, 10);
wm_mark_dirty(mx, my, 10, 10);
}
prev_left = left;
}
// Input Queue
#define INPUT_QUEUE_SIZE 128
static char key_queue[INPUT_QUEUE_SIZE];
static volatile int key_head = 0;
static volatile int key_tail = 0;
static void wm_dispatch_key(char c) {
if (desktop_dialog_state != 0) {
int len = 0; while(desktop_dialog_input[len]) len++;
if (c == '\n') {
if (desktop_dialog_state == 8) { // Rename
char old_path[128] = "/Desktop/";
char new_path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_icons[desktop_dialog_target].name[n]) old_path[p++] = desktop_icons[desktop_dialog_target].name[n++]; old_path[p]=0;
p=9; n=0; while(desktop_dialog_input[n]) new_path[p++] = desktop_dialog_input[n++]; new_path[p]=0;
if (fat32_rename(old_path, new_path)) {
refresh_desktop_icons();
explorer_refresh_all();
}
} else if (desktop_dialog_state == 1 || desktop_dialog_state == 2) { // Create File/Folder
if (desktop_icon_count >= desktop_max_cols * desktop_max_rows_per_col) {
wm_show_message("Error", "Desktop is full!");
} else if (desktop_dialog_input[0] != 0) {
char path[128] = "/Desktop/";
int p=9; int n=0; while(desktop_dialog_input[n]) path[p++] = desktop_dialog_input[n++]; path[p]=0;
if (desktop_dialog_state == 1) {
FAT32_FileHandle *fh = fat32_open(path, "w");
if (fh) fat32_close(fh);
} else {
fat32_mkdir(path);
}
refresh_desktop_icons();
explorer_refresh_all();
}
}
desktop_dialog_state = 0;
} else if (c == 27) {
desktop_dialog_state = 0;
} else if (c == '\b' || c == 127) {
if (desktop_dialog_cursor > 0) {
for(int i = desktop_dialog_cursor - 1; i < len; i++) desktop_dialog_input[i] = desktop_dialog_input[i+1];
desktop_dialog_cursor--;
}
} else if (c == 19) { // Left
if (desktop_dialog_cursor > 0) desktop_dialog_cursor--;
} else if (c == 20) { // Right
if (desktop_dialog_cursor < len) desktop_dialog_cursor++;
} else if (c >= 32 && c <= 126 && len < 63) {
for(int i = len; i >= desktop_dialog_cursor; i--) desktop_dialog_input[i+1] = desktop_dialog_input[i];
desktop_dialog_input[desktop_dialog_cursor] = c;
desktop_dialog_cursor++;
}
force_redraw = true;
return;
}
Window *target = NULL;
for (int i = 0; i < window_count; i++) {
if (all_windows[i]->focused && all_windows[i]->visible) {
target = all_windows[i];
break;
}
}
if (!target) return;
if (target->handle_key) {
target->handle_key(target, c);
}
// Mark window as needing redraw on next timer tick
wm_mark_dirty(target->x, target->y, target->w, target->h);
}
void wm_handle_key(char c) {
int next = (key_head + 1) % INPUT_QUEUE_SIZE;
if (next != key_tail) {
key_queue[key_head] = c;
key_head = next;
}
}
void wm_process_input(void) {
while (key_head != key_tail) {
char c = key_queue[key_tail];
key_tail = (key_tail + 1) % INPUT_QUEUE_SIZE;
wm_dispatch_key(c);
}
}
void wm_mark_dirty(int x, int y, int w, int h) {
graphics_mark_dirty(x, y, w, h);
}
void wm_refresh(void) {
force_redraw = true;
}
void wm_init(void) {
notepad_init();
cmd_init();
calculator_init();
explorer_init();
editor_init();
markdown_init();
control_panel_init();
about_init();
minesweeper_init();
paint_init();
refresh_desktop_icons();
// Initialize z-indices
win_notepad.z_index = 0;
win_cmd.z_index = 1;
win_calculator.z_index = 2;
win_explorer.z_index = 3;
win_editor.z_index = 4;
win_markdown.z_index = 5;
win_control_panel.z_index = 6;
win_about.z_index = 7;
win_minesweeper.z_index = 8;
win_paint.z_index = 9;
// Register windows in array
all_windows[0] = &win_notepad;
all_windows[1] = &win_cmd;
all_windows[2] = &win_calculator;
all_windows[3] = &win_explorer;
all_windows[4] = &win_editor;
all_windows[5] = &win_markdown;
all_windows[6] = &win_control_panel;
all_windows[7] = &win_about;
all_windows[8] = &win_minesweeper;
all_windows[9] = &win_paint;
window_count = 10;
// Only show Explorer and Notepad on desktop (Explorer on top)
win_explorer.visible = false;
win_explorer.focused = false;
win_explorer.z_index = 10;
win_notepad.visible = false;
win_notepad.focused = false;
win_notepad.z_index = 9;
// Rest are hidden initially
win_cmd.visible = false;
win_calculator.visible = false;
win_editor.visible = false;
win_markdown.visible = false;
win_control_panel.visible = false;
win_about.visible = false;
win_minesweeper.visible = false;
force_redraw = true;
}
uint32_t wm_get_ticks(void) {
return timer_ticks;
}
// Called by timer interrupt ~60Hz
void wm_timer_tick(void) {
timer_ticks++;
// Auto-refresh desktop every second (approx 60 ticks)
// But NOT if we are currently dragging something, to avoid state conflicts
if (!is_dragging && !is_dragging_file) {
desktop_refresh_timer++;
if (desktop_refresh_timer >= 60) {
refresh_desktop_icons();
explorer_refresh_all();
desktop_refresh_timer = 0;
force_redraw = true;
}
}
// Only redraw if there are dirty areas (clock updates at most every second, cursor rarely moves in timer only)
// Most of the time, nothing changes between ticks
static uint8_t last_second = 0xFF;
outb(0x70, 0x00);
uint8_t current_sec = inb(0x71);
if (current_sec != last_second) {
last_second = current_sec;
int sw = get_screen_width();
int sh = get_screen_height();
// Mark clock area + a bit of buffer
wm_mark_dirty(sw - 90, sh - 30, 90, 20);
}
// If force_redraw is set, do a full redraw
if (force_redraw) {
graphics_mark_screen_dirty();
force_redraw = false;
}
// Perform redraw if there are dirty areas
DirtyRect dirty = graphics_get_dirty_rect();
if (dirty.active) {
wm_paint();
graphics_clear_dirty();
}
}
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