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Update 1.03

Browse Source 
New feature(s):
- Markdown reader (Automatically opens when opening .MD files, right click a .MD file to edit.
Bug fixes:
-N/A
This commit is contained in:
Chris
2026-02-05 20:02:20 +01:00
parent a852075701
commit d9fc8fbeda
22 changed files with 904 additions and 132 deletions
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129
src/kernel/editor.c
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@@ -54,7 +54,10 @@ static void editor_ensure_cursor_visible(void);
static void editor_clear_all(void) {
for (int i = 0; i < EDITOR_MAX_LINES; i++) {
lines[i].content[0] = 0;
// Zero out entire buffer to prevent ghost text from previous file
for (int j = 0; j < EDITOR_MAX_LINE_LEN; j++) {
lines[i].content[j] = 0;
}
lines[i].length = 0;
}
line_count = 1;
@@ -264,44 +267,104 @@ static void editor_paint(Window *win) {
// Fill editor background
draw_rect(offset_x, offset_y + 30, content_width, content_height - 55, COLOR_WHITE);
// Draw line numbers and content
int visible_lines = (content_height - 55) / EDITOR_LINE_HEIGHT;
int max_line = scroll_top + visible_lines;
if (max_line > line_count) max_line = line_count;
// Calculate available width for text (accounting for line numbers)
int text_start_x = offset_x + 40;
int available_width = content_width - 40;
int max_chars_per_line = available_width / EDITOR_CHAR_WIDTH;
if (max_chars_per_line < 1) max_chars_per_line = 1;
for (int i = scroll_top; i < max_line; i++) {
int display_y = offset_y + 35 + (i - scroll_top) * EDITOR_LINE_HEIGHT;
// Draw line numbers and content with word wrapping
int display_line = 0;
int visible_lines = (content_height - 55) / EDITOR_LINE_HEIGHT;
int max_display_lines = visible_lines;
int line_idx = scroll_top;
while (line_idx < line_count && display_line < max_display_lines) {
int display_y = offset_y + 35 + display_line * EDITOR_LINE_HEIGHT;
// Draw line number
char line_num_str[16];
int temp = i + 1;
int str_len = 0;
if (temp == 0) {
line_num_str[0] = '0';
str_len = 1;
} else {
while (temp > 0) {
line_num_str[str_len++] = (temp % 10) + '0';
temp /= 10;
// Only draw line number for first wrapped line of this editor line
if (display_line == 0 || line_idx < line_count) {
// Draw line number
char line_num_str[16];
int temp = line_idx + 1;
int str_len = 0;
if (temp == 0) {
line_num_str[0] = '0';
str_len = 1;
} else {
while (temp > 0) {
line_num_str[str_len++] = (temp % 10) + '0';
temp /= 10;
}
// Reverse
for (int j = 0; j < str_len / 2; j++) {
char t = line_num_str[j];
line_num_str[j] = line_num_str[str_len - 1 - j];
line_num_str[str_len - 1 - j] = t;
}
}
// Reverse
for (int j = 0; j < str_len / 2; j++) {
char t = line_num_str[j];
line_num_str[j] = line_num_str[str_len - 1 - j];
line_num_str[str_len - 1 - j] = t;
line_num_str[str_len] = 0;
draw_string(offset_x + 4, display_y, line_num_str, COLOR_DKGRAY);
}
// Word-based text wrapping for this line
const char *text = lines[line_idx].content;
int text_len = lines[line_idx].length;
int char_idx = 0;
int local_display_line = 0;
while (char_idx < text_len && display_line < max_display_lines) {
int current_display_y = offset_y + 35 + display_line * EDITOR_LINE_HEIGHT;
// Extract segment (up to max_chars_per_line)
char segment[256];
int segment_len = 0;
int segment_start = char_idx;
while (char_idx < text_len && segment_len < max_chars_per_line) {
segment[segment_len++] = text[char_idx++];
}
segment[segment_len] = 0;
// Word-based wrapping: find last space if we didn't reach end
if (char_idx < text_len && segment_len > 0) {
int last_space = -1;
for (int i = segment_len - 1; i >= 0; i--) {
if (segment[i] == ' ') {
last_space = i;
break;
}
}
if (last_space > 0) {
segment_len = last_space;
segment[segment_len] = 0;
char_idx = segment_start + last_space + 1;
// Skip additional spaces
while (char_idx < text_len && text[char_idx] == ' ') {
char_idx++;
}
}
}
// Draw the text segment
if (segment_len > 0) {
draw_string(text_start_x, current_display_y, segment, COLOR_BLACK);
}
// Draw cursor if on this line and wrapped segment
if (line_idx == cursor_line && cursor_col >= segment_start && cursor_col < segment_start + segment_len) {
int cursor_x = text_start_x + ((cursor_col - segment_start) * EDITOR_CHAR_WIDTH);
draw_rect(cursor_x, current_display_y, 2, 10, COLOR_BLACK);
}
display_line++;
local_display_line++;
if (char_idx >= text_len) break;
}
line_num_str[str_len] = 0;
draw_string(offset_x + 4, display_y, line_num_str, COLOR_DKGRAY);
// Draw line content
draw_string(offset_x + 40, display_y, lines[i].content, COLOR_BLACK);
// Draw cursor if on this line
if (i == cursor_line) {
int cursor_x = offset_x + 40 + (cursor_col * EDITOR_CHAR_WIDTH);
draw_rect(cursor_x, display_y, 2, 10, COLOR_BLACK);
}
line_idx++;
}
// Draw status bar at bottom