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Can view large count directories, Names trimmed in viewers

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This commit is contained in:
Lucia Ceionia 2023-02-10 22:17:03 -06:00
parent 0953fe31ec
commit 36e66600f5
5 changed files with 60 additions and 22 deletions
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19
helper.c
View File

@ -5,6 +5,22 @@ uint16_t *nextLine(uint16_t *p, uint16_t *b) {
return (uint16_t *)(v + (160 - ((v - (uintptr_t)b) % 160)));
}
void trimPath(char *path, char *buff, uint32_t maxLen) {
int pathLen = 0;
for (;path[pathLen];pathLen++);
pathLen++;
if (pathLen < maxLen) {
for(int i = 0; i < pathLen; i++)
buff[i] = path[i];
return;
}
for (int i = 0; i < 3; i++)
buff[i] = '.';
for (int i = 3; i < maxLen; i++) {
buff[i] = path[pathLen-maxLen+i];
}
}
void V8086Int(uint8_t interrupt, union V86Regs_t *regs) {
// Edit the v8086 code with the interrupt
// Writing 4 bytes to ensure proper code
@ -65,7 +81,7 @@ void File83ToPath(char *src, char *path) {
path[tmp] = 0;
}
void GetFileList(DIRENT *entries, int32_t *entCount, VOLINFO *vi, DIRINFO *di) {
void GetFileList(DIRENT *entries, int32_t *entCount, int32_t maxEntries, VOLINFO *vi, DIRINFO *di) {
uint8_t *diskReadBuf = (uint8_t *)0x20000;
DIRENT de;
int32_t fileCount = 0;
@ -77,6 +93,7 @@ void GetFileList(DIRENT *entries, int32_t *entCount, VOLINFO *vi, DIRINFO *di) {
d[i] = s[i];
fileCount++;
}
if (fileCount >= maxEntries) break;
}
*entCount = fileCount;
}

3
helper.h
View File

@ -12,8 +12,9 @@ void SetVideo50Lines();
void SetCursorDisabled();
uint16_t *nextLine(uint16_t *p, uint16_t *b);
void trimPath(char *path, char *buff, uint32_t maxLen);
uint32_t OpenVol(VOLINFO *vi);
uint32_t OpenDir(uint8_t *path, VOLINFO *vi, DIRINFO *di);
void File83ToPath(char *src, char *path);
void GetFileList(DIRENT *entries, int32_t *entCount, VOLINFO *vi, DIRINFO *di);
void GetFileList(DIRENT *entries, int32_t *entCount, int32_t maxEntries, VOLINFO *vi, DIRINFO *di);

16
hexedit.c
View File

@ -244,11 +244,15 @@ void HexEditor(uint8_t *path, VOLINFO *vi) {
}
if (redraw) {
vga_text = (uint16_t *)0xb8000;
vga_text += printStr((char*)path, vga_text);
vga_text += printChar(fileChanged ? '*' : ' ', vga_text);
{
const char prnt[] = "Scroll: Up/Down PgUp/PgDown Home/End Exit: F1";
vga_text = &((uint16_t*)0xb8000)[80-sizeof(prnt)];
vga_text = &((uint16_t*)0xb8000)[0];
char pathBuff[22];
trimPath((char*)path, pathBuff, sizeof(pathBuff));
vga_text += printStr(pathBuff, vga_text);
vga_text += printChar(fileChanged ? '*' : ' ', vga_text);
for (;vga_text < &((uint16_t*)0xb8000)[80-sizeof(prnt)];)
vga_text += printChar(' ', vga_text);
vga_text += printStr((char*)prnt, vga_text);
}
vga_text = &((uint16_t*)0xb8000)[80];
@ -407,8 +411,12 @@ void HexEditor(uint8_t *path, VOLINFO *vi) {
}
if (!fileChanged) return;
vga_text = (uint16_t*)0xb8000;
vga_text += printStr((char*)path, vga_text);
{
char pathBuff[23];
trimPath((char*)path, pathBuff, sizeof(pathBuff));
vga_text += printStr(pathBuff, vga_text);
vga_text += printChar(fileChanged ? '*' : ' ', vga_text);
}
vga_text += printChar(' ', vga_text);
vga_text += printStr("Save changes to file? (Y/N)", vga_text);
for (;vga_text < &((uint16_t*)0xb8000)[80];vga_text++)

33
kernel.c
View File

@ -253,12 +253,13 @@ void RestoreVGA() {
SetPalette();
}
int32_t fileCount;
int32_t fileCount, fileOffset;
DIRENT *entries = (DIRENT*)0x400000;
#define MAXDISPFILES 16
void PrintFileList(uint16_t *vga) {
uint16_t *vga_text = &((uint16_t *)vga)[80*6+3];
for (int i = 0; i < fileCount; i++) {
DIRENT *de = &entries[i];
for (int i = 0; (i + fileOffset) < fileCount && i < MAXDISPFILES; i++) {
DIRENT *de = &entries[i + fileOffset];
for (int i = 0; i < 11 && de->name[i]; i++) {
if (i == 8) { *(uint8_t*)vga_text = ' '; vga_text++; } // space for 8.3
*(uint8_t *)vga_text = de->name[i];
@ -297,7 +298,8 @@ void FileSelect() {
current_path_end = 1;
fileCount = 5;
uint16_t *vga_text = (uint16_t *)FileSelectScreen;
int32_t fileHovered = 0, lastFileHovered = 0;
int32_t fileHovered = 0;
fileOffset = 0;
for (char reload = 1;;) {
DrawScreen(vga_text);
// Info line (4)
@ -321,15 +323,22 @@ void FileSelect() {
OpenVol(&vi);
current_path[current_path_end] = 0;
OpenDir(current_path, &vi, &di);
GetFileList(entries, &fileCount, &vi, &di);
GetFileList(entries, &fileCount, INT32_MAX, &vi, &di);
reload = 0;
}
PrintFileList(vga_text);
if (lastFileHovered != fileHovered) {
*(uint8_t*)&vga_text[80*(6+lastFileHovered)+2] = ' ';
lastFileHovered = fileHovered;
if (fileHovered >= fileCount) {
fileOffset = fileCount - MAXDISPFILES;
fileHovered = fileCount - 1;
}
*(uint8_t*)&vga_text[80*(6+fileHovered)+2] = '>';
if ((fileHovered - fileOffset) >= MAXDISPFILES)
fileOffset = fileHovered - MAXDISPFILES + 1;
else if ((fileHovered - fileOffset) < 0)
fileOffset = fileHovered;
PrintFileList(vga_text);
for (int i = 6; i < 24; i++) {
*(uint8_t*)&vga_text[80*i+2] = ' ';
}
*(uint8_t*)&vga_text[80*(6+(fileHovered-fileOffset))+2] = '>';
// Copy to real VGA
for (int i = 0; i < 80*25; i++)
((uint16_t*)0xb8000)[i] = vga_text[i];
@ -338,7 +347,7 @@ void FileSelect() {
switch (key & 0xff) { // scancode component
case KEY_DOWN: // down
fileHovered++;
if (fileHovered >= fileCount) fileHovered = 0;
if (fileHovered >= fileCount) { fileHovered = 0; fileOffset = 0; }
break;
case KEY_UP: // up
fileHovered--;
@ -392,6 +401,7 @@ void FileSelect() {
current_path[current_path_end] = 0;
reload = 1;
fileHovered = 0;
fileOffset = 0;
break;
}
for (int i = 0; (i + current_path_end) < sizeof(current_path); i++)
@ -402,6 +412,7 @@ void FileSelect() {
current_path[current_path_end] = 0;
reload = 1;
fileHovered = 0;
fileOffset = 0;
}
break;
case KEY_F6:

9
progs.c
View File

@ -62,16 +62,17 @@ void TextViewTest(uint8_t *path, VOLINFO *vi) {
vga_text = (uint16_t *)0xb8000;
for (int i = 0; i < screenSize; i++)
vga_text[i] = 0x0f00;
vga_text += printStr((char*)path, vga_text);
char pathBuff[22];
trimPath((char*)path, pathBuff, sizeof(pathBuff));
vga_text += printStr(pathBuff, vga_text);
vga_text += 2;
vga_text += printStr("Line: ", vga_text);
vga_text += printDec(currLine, vga_text);
vga_text += printChar('/', vga_text);
vga_text += printDec(lastLine, vga_text);
vga_text += printStr(" Scroll: Up/Down PgUp/PgDown Home/End", vga_text);
{
const char prnt[] = "Exit: E ";
vga_text = &((uint16_t*)0xb8000)[80-sizeof(prnt)];
const char prnt[] = "Exit: E";
vga_text = &((uint16_t*)0xb8000)[80-sizeof(prnt)+1];
vga_text += printStr((char*)prnt, vga_text);
}
for (vga_text = &((uint16_t*)0xb8000)[84]; vga_text < &((uint16_t*)0xb8000)[screenSize]; vga_text += 80)