Open source Star Ruler 2 source code!

2018-07-17 14:15:37 +02:00
commit cc307720ff
4342 changed files with 2365070 additions and 0 deletions
@@ -0,0 +1,141 @@
+class WordWrap {
+	string[] lines;
+	int[] positions;
+	int[] ends;
+	int maxWidth;
+
+	bool changed;
+
+	const Font@ Font;
+	string Text;
+	int Width;
+
+	WordWrap() {
+		Width = 100;
+		maxWidth = 100;
+		changed = true;
+	}
+
+	void set_font(const Font@ fnt) {
+		if(fnt is Font)
+			return;
+		@Font = fnt;
+		changed = true;
+	}
+
+	void set_text(const string& txt) {
+		Text = txt;
+		changed = true;
+	}
+
+	void set_width(int wd) {
+		if(wd == Width)
+			return;
+		Width = wd;
+		changed = true;
+	}
+
+	int get_lineCount() {
+		return lines.length();
+	}
+
+	void update() {
+		if(!changed)
+			return;
+
+		uint len = Text.length();
+		uint line = 0;
+		uint start = 0;
+		int pos = 0;
+		int w = 0, ch = 0, prevCh = 0;
+		int word = -1, word_w = 0;
+		maxWidth = 0;
+
+		while(pos >= 0) {
+			int prevPos = pos;
+			u8next(Text, pos, ch);
+
+			if(ch == '\n') {
+				if(lines.length() <= line) {
+					lines.insertLast(Text.substr(start, prevPos - start));
+					positions.insertLast(start);
+					ends.insertLast(prevPos);
+				}
+				else {
+					lines[line] = Text.substr(start, prevPos - start);
+					positions[line] = start;
+					ends[line] = prevPos;
+				}
+
+				if(w > maxWidth)
+					maxWidth = w;
+
+				++line;
+				start = prevPos+1;
+				w = 0;
+				word = -1;
+			}
+			else {
+				int chW = Font.getDimension(ch, prevCh).x;
+				w += chW;
+
+				if(w > Width) {
+					if(word >= 0) {
+						prevPos = word;
+						w = w - word_w;
+					}
+					else {
+						w = chW;
+					}
+
+					if(lines.length() <= line) {
+						lines.insertLast(Text.substr(start, prevPos - start));
+						positions.insertLast(start);
+						ends.insertLast(prevPos);
+					}
+					else {
+						lines[line] = Text.substr(start, prevPos - start);
+						positions[line] = start;
+						ends[line] = prevPos;
+					}
+
+					++line;
+					start = prevPos;
+					word = -1;
+					maxWidth = Width;
+				}
+				else if(ch == ' ') {
+					word = pos;
+					word_w = w;
+				}
+			}
+
+			prevCh = ch;
+		}
+
+		if(start <= len) {
+			if(lines.length() <= line) {
+				lines.insertLast(Text.substr(start, len - start));
+				positions.insertLast(start);
+				ends.insertLast(len);
+			}
+			else {
+				lines[line] = Text.substr(start, len - start);
+				positions[line] = start;
+				ends[line] = len;
+			}
+			++line;
+		}
+
+		if(line != lines.length()) {
+			lines.resize(line);
+			positions.resize(line);
+			ends.resize(line);
+		}
+
+		if(w > maxWidth)
+			maxWidth = w;
+
+		changed = false;
+	}
+};