Huge Text Editor Update:

1) Finished Indent levels rendering & logic

 2) Added Format Code bind (SHIFT+F)

 3) Added auto-completion to "", '', [] and () pairs and auto-generated brace {} scaffolds for if/try/catch/method blocks with proper indent level.

 4) Enter/Backspace/Up/Down now account for current indent level

 5) Tab/SHIF+TAB now cycle between next/previous indent levels accordingly
This commit is contained in:
bigguy345 committed 2025-12-17 20:06:47 +02:00
1 parent fb7bd685d4
commit e6423a6de0
1 file changed
+373 -31
@@ -120,7 +120,7 @@ public class GuiScriptTextArea extends GuiNpcTextField {
List<JavaTextContainer.LineData> list = new ArrayList<>(container.lines);
// Build brace spans: depth, open line, close line (inclusive)
// Build brace spans: {origDepth, open line, close line, adjustedDepth}
List<int[]> braceSpans = computeBraceSpans(text, list);
String wordHightLight = null;
@@ -177,11 +177,12 @@ public class GuiScriptTextArea extends GuiNpcTextField {
int visStart = scrolledLine;
int visEnd = Math.min(list.size() - 1, scrolledLine + container.visibleLines - 1);
for (int[] span : braceSpans) {
int depth = span[0];
int originalDepth = span[0];
int openLine = span[1];
int closeLine = span[2];
// Skip top-level (depth 1) to avoid class/global fields guides
if (depth <= 1)
int depth = span.length > 3 ? span[3] : originalDepth;
// Skip top-level (depth 1) using the original depth to avoid hiding nested guides when adjusted
if (originalDepth <= 1)
continue;
int startLine = openLine + 1; // start under the opening brace
int endLine = closeLine - 1; // stop before the closing brace
@@ -193,7 +194,8 @@ public class GuiScriptTextArea extends GuiNpcTextField {
int drawStart = Math.max(startLine, visStart);
int drawEnd = Math.min(endLine, visEnd);
// Compute horizontal position: 4 spaces per indent level, minus a tiny left offset
int spaces = (depth - 1) * 4;
int safeDepth = Math.max(1, depth);
int spaces = (safeDepth - 1) * 4;
StringBuilder sb = new StringBuilder();
for (int k = 0; k < spaces; k++)
sb.append(' ');
@@ -264,7 +266,7 @@ public class GuiScriptTextArea extends GuiNpcTextField {
return 0;
}
// Computes brace spans as {depth, openLineIndex, closeLineIndex}, inclusive of brace lines
// Computes brace spans as {originalDepth, openLineIndex, closeLineIndex, adjustedDepth}, inclusive of brace lines
private List<int[]> computeBraceSpans(String fullText, List<LineData> lines) {
List<int[]> spans = new ArrayList<>();
if (fullText == null || fullText.isEmpty() || lines == null || lines.isEmpty())
@@ -273,7 +275,6 @@ public class GuiScriptTextArea extends GuiNpcTextField {
int lineIdx = 0;
int lineEnd = lines.get(0).end;
List<Integer> openStack = new ArrayList<>(); // line indices of unmatched opens
List<Integer> unmatchedOpenLines = new ArrayList<>();
boolean inLineComment = false;
boolean inBlockComment = false;
@@ -297,6 +298,9 @@ public class GuiScriptTextArea extends GuiNpcTextField {
escape = true;
} else if (c == stringDelimiter) {
inString = false;
} else if (c == '\n') {
// Treat unterminated strings as ending at EOL to avoid breaking later brace parsing
inString = false;
}
continue;
}
@@ -345,28 +349,20 @@ public class GuiScriptTextArea extends GuiNpcTextField {
}
}
// Normalize depths to reduce impact of unmatched opens without hiding nested guides
if (!openStack.isEmpty()) {
unmatchedOpenLines.addAll(openStack);
unmatchedOpenLines.sort(Integer::compareTo);
int baseline = openStack.size();
List<int[]> adjusted = new ArrayList<>(spans.size());
for (int[] span : spans) {
int openLine = span[1];
int adjust = 0;
for (int unmatched : unmatchedOpenLines) {
if (unmatched <= openLine) {
adjust++;
} else {
break;
}
}
int newDepth = span[0] - adjust;
if (newDepth > 0) {
adjusted.add(new int[]{newDepth, openLine, span[2]});
}
int adjustedDepth = Math.max(1, span[0] - baseline);
adjusted.add(new int[]{span[0], span[1], span[2], adjustedDepth});
}
spans = adjusted;
} else {
for (int idx = 0; idx < spans.size(); idx++) {
int[] span = spans.get(idx);
spans.set(idx, new int[]{span[0], span[1], span[2], span[0]});
}
}
return spans;
@@ -453,7 +449,7 @@ public class GuiScriptTextArea extends GuiNpcTextField {
j = m.start();
}
}
int newPos = Math.min(cursorPosition + j, text.length()); //-2 for the \n
int newPos = Math.min(cursorPosition + j, text.length());
setCursor(newPos, GuiScreen.isShiftKeyDown());
return true;
}
@@ -558,6 +554,50 @@ public class GuiScriptTextArea extends GuiNpcTextField {
String s = getSelectionBeforeText();
if (startSelection > 0 && startSelection == endSelection) {
LineData curr = null;
for (LineData line : container.lines) {
if (cursorPosition >= line.start && cursorPosition <= line.end) {
curr = line;
break;
}
}
if (curr != null) {
int col = cursorPosition - curr.start;
int indent = getLineIndent(curr.text);
if (col <= indent && startSelection - 1 >= 0 && text.charAt(startSelection - 1) == '\n') {
// At or before indent: jump to previous line indent by removing newline
LineData prev = null;
int idx = container.lines.indexOf(curr);
if (idx > 0)
prev = container.lines.get(idx - 1);
String before = text.substring(0, startSelection - 1);
String after = startSelection < text.length() ? text.substring(startSelection) : "";
setText(before + after);
int newCursor = startSelection - 1;
if (prev != null) {
int prevIndent = getLineIndent(prev.text);
newCursor = prev.start + Math.min(prevIndent, Math.max(0, prev.text.length()));
}
endSelection = cursorPosition = startSelection = Math.max(0, newCursor);
return true;
}
}
// If deleting an opening bracket/quote and the immediate next char is the matching closer,
// remove both so the auto-inserted closer doesn't remain orphaned.
if (startSelection > 0 && startSelection < text.length()) {
char prev = text.charAt(startSelection - 1);
char nextc = text.charAt(startSelection);
boolean removedPair = false;
if ((prev == '(' && nextc == ')') || (prev == '[' && nextc == ']') || (prev == '{' && nextc == '}') || (prev == '\'' && nextc == '\'') || (prev == '"' && nextc == '"')) {
String before = text.substring(0, startSelection - 1);
String after = startSelection + 1 < text.length() ? text.substring(startSelection + 1) : "";
setText(before + after);
startSelection -= 1;
endSelection = cursorPosition = startSelection;
return true;
}
}
s = s.substring(0, s.length() - 1);
startSelection--;
}
@@ -608,12 +648,93 @@ public class GuiScriptTextArea extends GuiNpcTextField {
return true;
}
if (i == Keyboard.KEY_TAB) {
addText(" ");
boolean shift = isShiftKeyDown();
if (shift) {
handleShiftTab();
} else {
handleTab();
}
}
if (i == Keyboard.KEY_F && isCtrlKeyDown()) {
formatText();
return true;
}
if (i == Keyboard.KEY_RETURN) {
addText(Character.toString('\n') + getAutoIndentForEnter());
if (cursorPosition > 0 && cursorPosition <= text.length() && text.charAt(cursorPosition - 1) == '{') {
String indent = getIndentCurrentLine();
String childIndent = indent + " ";
String before = getSelectionBeforeText();
String after = getSelectionAfterText();
// Find the next non-whitespace character and its indent to decide if this brace is already closed at the same scope.
int nextNonWsIndex = -1;
for (int idx = 0; idx < after.length(); idx++) {
char ch = after.charAt(idx);
if (!Character.isWhitespace(ch)) {
nextNonWsIndex = idx;
break;
}
}
boolean hasMatchingCloseSameIndent = false;
if (nextNonWsIndex >= 0 && after.charAt(nextNonWsIndex) == '}') {
// Compute indent of that closing brace
int lineStart = after.lastIndexOf('\n', nextNonWsIndex);
int indentLen = 0;
for (int k = lineStart + 1; k < after.length(); k++) {
char ch = after.charAt(k);
if (ch == ' ') indentLen++; else if (ch == '\t') indentLen += 4; else break;
if (k == nextNonWsIndex) break;
}
if (indentLen == indent.length()) {
hasMatchingCloseSameIndent = true;
}
}
if (hasMatchingCloseSameIndent) {
addText("\n" + childIndent);
} else {
String insert = "\n" + childIndent + "\n" + indent + "}";
setText(before + insert + after);
int newCursor = before.length() + 1 + childIndent.length();
startSelection = endSelection = cursorPosition = newCursor;
}
} else {
addText(Character.toString('\n') + getAutoIndentForEnter());
}
}
if (ChatAllowedCharacters.isAllowedCharacter(c)) {
String before = getSelectionBeforeText();
String after = getSelectionAfterText();
// If typing a closing char and the next char is already that closer, skip over it
if ((c == ')' || c == ']' || c == '"' || c == '\'' ) && after.length() > 0 && after.charAt(0) == c) {
// move cursor forward over existing closer
startSelection = endSelection = cursorPosition = before.length() + 1;
return true;
}
if (c == '"') {
setText(before + "\"\"" + after);
startSelection = endSelection = cursorPosition = before.length() + 1;
return true;
}
if (c == '\'') {
setText(before + "''" + after);
startSelection = endSelection = cursorPosition = before.length() + 1;
return true;
}
if (c == '[') {
setText(before + "[]" + after);
startSelection = endSelection = cursorPosition = before.length() + 1;
return true;
}
if (c == '(') {
setText(before + "()" + after);
startSelection = endSelection = cursorPosition = before.length() + 1;
return true;
}
addText(Character.toString(c));
}
@@ -866,6 +987,219 @@ public class GuiScriptTextArea extends GuiNpcTextField {
return baseIndent;
}
private int getLineIndent(String lineText) {
int leading = 0;
while (leading < lineText.length() && (lineText.charAt(leading) == ' ' || lineText.charAt(
leading) == '\t')) {
leading++;
}
return leading;
}
private int getTabSize() {
return 4;
}
private String repeatSpace(int count) {
if (count <= 0)
return "";
char[] arr = new char[count];
java.util.Arrays.fill(arr, ' ');
return new String(arr);
}
private void formatText() {
String[] linesArr = text.split("\n", -1);
StringBuilder out = new StringBuilder(text.length() + 32);
boolean inString = false;
boolean escape = false;
boolean inBlockComment = false;
int depth = 0;
int tab = getTabSize();
for (int li = 0; li < linesArr.length; li++) {
String line = linesArr[li];
String trimmedLeading = line.replaceAll("^[ \t]+", "");
int lineIndentDec = 0;
int opens = 0, closes = 0;
boolean startsWithClose = false;
// First pass to determine startsWithClose and brace counts ignoring strings/comments
for (int idx = 0; idx < line.length(); idx++) {
char c = line.charAt(idx);
char next = idx + 1 < line.length() ? line.charAt(idx + 1) : 0;
if (inString) {
if (escape) {
escape = false;
} else if (c == '\\') {
escape = true;
} else if (c == '"') {
inString = false;
}
continue;
}
if (inBlockComment) {
if (c == '*' && next == '/') {
inBlockComment = false;
idx++;
}
continue;
}
if (c == '/' && next == '/') {
break; // rest of line is comment
}
if (c == '/' && next == '*') {
inBlockComment = true;
idx++;
continue;
}
if (c == '"') {
inString = true;
escape = false;
continue;
}
if (c == '{') {
opens++;
} else if (c == '}') {
closes++;
if (!startsWithClose) {
String prefix = line.substring(0, idx);
if (prefix.trim().isEmpty()) {
startsWithClose = true;
}
}
}
}
int indentLevel = depth;
if (startsWithClose)
indentLevel = Math.max(0, indentLevel - 1);
int targetIndent = indentLevel * tab;
out.append(repeatSpace(targetIndent)).append(trimmedLeading);
if (li < linesArr.length - 1)
out.append('\n');
depth = Math.max(0, depth + opens - closes);
}
setText(out.toString());
}
private void handleTab() {
LineData currentLine = null;
for (LineData line : this.container.lines) {
if (this.cursorPosition >= line.start && this.cursorPosition <= line.end) {
currentLine = line;
break;
}
}
if (currentLine == null) {
addText(" ");
return;
}
int tab = getTabSize();
int indentLen = getLineIndent(currentLine.text);
int textStartPos = currentLine.start + indentLen;
if (this.cursorPosition <= textStartPos) {
// Cursor before any text: if cursor is exactly at text start, move forward to next tab stop.
// If cursor is inside leading whitespace (before text start), choose nearest tab stop (tie -> forward).
int targetIndent;
if (this.cursorPosition == textStartPos) {
targetIndent = ((indentLen / tab) + 1) * tab;
} else {
int remainder = indentLen % tab;
if (remainder == 0) {
targetIndent = indentLen + tab; // already aligned -> next level
} else {
int down = indentLen - remainder;
int up = indentLen + (tab - remainder);
int distDown = remainder;
int distUp = tab - remainder;
if (distUp < distDown) targetIndent = up;
else if (distUp > distDown) targetIndent = down;
else targetIndent = up; // tie -> forward
}
}
if (targetIndent < 0) targetIndent = 0;
String newIndent = repeatSpace(targetIndent);
String rest = currentLine.text.substring(indentLen);
String before = text.substring(0, currentLine.start);
int contentEnd = Math.min(currentLine.start + currentLine.text.length(), text.length());
int sepEnd = Math.min(currentLine.end, text.length());
String sep = contentEnd < sepEnd ? text.substring(contentEnd, sepEnd) : "";
String after = text.substring(sepEnd);
setText(before + newIndent + rest + sep + after);
int newCursor = currentLine.start + targetIndent;
startSelection = endSelection = cursorPosition = Math.min(newCursor, this.text.length());
} else {
// Cursor is after start of text: insert spaces at cursor to move following text to next tab stop
int column = this.cursorPosition - currentLine.start;
int targetColumn = ((column / tab) + 1) * tab;
int toInsert = Math.max(0, targetColumn - column);
if (toInsert > 0) {
String spaces = repeatSpace(toInsert);
addText(spaces);
}
}
}
private void handleShiftTab() {
LineData currentLine = null;
for (LineData line : this.container.lines) {
if (this.cursorPosition >= line.start && this.cursorPosition <= line.end) {
currentLine = line;
break;
}
}
if (currentLine == null)
return;
int tab = getTabSize();
int indentLen = getLineIndent(currentLine.text);
int textStartPos = currentLine.start + indentLen;
if (this.cursorPosition <= textStartPos) {
// Cursor before any text: reduce leading indent to previous tab stop
int targetIndent = Math.max(0, ((indentLen - 1) / tab) * tab);
String newIndent = repeatSpace(targetIndent);
String rest = currentLine.text.substring(indentLen);
String before = text.substring(0, currentLine.start);
int contentEnd = Math.min(currentLine.start + currentLine.text.length(), text.length());
int sepEnd = Math.min(currentLine.end, text.length());
String sep = contentEnd < sepEnd ? text.substring(contentEnd, sepEnd) : "";
String after = text.substring(sepEnd);
setText(before + newIndent + rest + sep + after);
int newCursor = currentLine.start + targetIndent;
startSelection = endSelection = cursorPosition = Math.min(newCursor, this.text.length());
} else {
// Cursor after start of text: remove up to previous tab stop worth of spaces immediately before cursor
int column = this.cursorPosition - currentLine.start;
int mod = column % tab;
int toRemove = mod == 0 ? tab : mod;
int removed = 0;
int pos = this.cursorPosition - 1;
while (pos >= currentLine.start && removed < toRemove && text.charAt(pos) == ' ') {
pos--;
removed++;
}
if (removed > 0) {
int removeStart = pos + 1;
String before = text.substring(0, removeStart);
String after = text.substring(this.cursorPosition);
setText(before + after);
int newCursor = removeStart;
startSelection = endSelection = cursorPosition = Math.min(newCursor, this.text.length());
}
}
}
private void setCursor(int i, boolean select) {
i = Math.min(Math.max(i, 0), this.text.length());
if (i != this.cursorPosition) {
@@ -905,8 +1239,12 @@ public class GuiScriptTextArea extends GuiNpcTextField {
return 0;
}
int var10000 = this.cursorPosition - data.start;
return this.getSelectionPos(this.x + 1 + ClientProxy.Font.width(data.text.substring(0, this.cursorPosition - data.start)), this.y + 1 + (i - 1 - this.scrolledLine) * this.container.lineHeight);
int column = this.cursorPosition - data.start;
LineData target = this.container.lines.get(i - 1);
int targetPos = this.getSelectionPos(this.x + 1 + ClientProxy.Font.width(data.text.substring(0, column)), this.y + 1 + (i - 1 - this.scrolledLine) * this.container.lineHeight);
int targetIndent = getLineIndent(target.text);
int minPos = target.start + Math.min(targetIndent, Math.max(0, target.text.length()));
return Math.max(minPos, targetPos);
}
}
@@ -919,8 +1257,12 @@ public class GuiScriptTextArea extends GuiNpcTextField {
for (int i = 0; i < this.container.lines.size(); ++i) {
LineData data = (LineData) this.container.lines.get(i);
if (this.cursorPosition >= data.start && this.cursorPosition < data.end) {
int var10000 = this.cursorPosition - data.start;
return this.getSelectionPos(this.x + 1 + ClientProxy.Font.width(data.text.substring(0, this.cursorPosition - data.start)), this.y + 1 + (i + 1 - this.scrolledLine) * this.container.lineHeight);
int column = this.cursorPosition - data.start;
LineData target = this.container.lines.get(Math.min(i + 1, this.container.lines.size() - 1));
int targetPos = this.getSelectionPos(this.x + 1 + ClientProxy.Font.width(data.text.substring(0, column)), this.y + 1 + (i + 1 - this.scrolledLine) * this.container.lineHeight);
int targetIndent = getLineIndent(target.text);
int minPos = target.start + Math.min(targetIndent, Math.max(0, target.text.length()));
return Math.max(minPos, targetPos);
}
}