TITANIC: Added CCreditText loading

5 files changed, 137 insertions, 17 deletions

diff --git a/engines/titanic/core/game_object.cpp b/engines/titanic/core/game_object.cpp
index d33a0c928b..af4ffab1e3 100644
--- a/engines/titanic/core/game_object.cpp
+++ b/engines/titanic/core/game_object.cpp
@@ -193,8 +193,11 @@ void CGameObject::load(SimpleFile *file) {
 void CGameObject::draw(CScreenManager *screenManager) {
 	if (!_visible)
 		return;
-	if (_credits) {
-		error("TODO: Block in CGameObject::draw");
+	if (_credits && _credits->_objectP == this) {
+		if (!_credits->draw())
+			CGameObject::deinit();
+		
+		return;
 	}
 
 	if (_field40) {
diff --git a/engines/titanic/support/credit_text.cpp b/engines/titanic/support/credit_text.cpp
index e70d1dcf7a..1f12341e71 100644
--- a/engines/titanic/support/credit_text.cpp
+++ b/engines/titanic/support/credit_text.cpp
@@ -26,13 +26,13 @@
 namespace Titanic {
 
 CCreditText::CCreditText() : _screenManagerP(nullptr), _field14(0),
-	_ticks(0), _fontHeight(1), _objectP(nullptr), _field34(0), _field38(0),
-	_field3C(0), _field40(0), _field44(0), _field48(0), _field4C(0),
-	_field50(0), _field54(0), _field58(0), _field5C(0) {
+	_ticks(0), _fontHeight(1), _objectP(nullptr), _totalHeight(0),
+	_field40(0), _field44(0), _field48(0), _field4C(0), _field50(0),
+	_field54(0), _field58(0), _field5C(0) {
 }
 
 void CCreditText::clear() {
-	_list.destroyContents();
+	_groups.destroyContents();
 	_objectP = nullptr;
 }
 
@@ -41,6 +41,9 @@ void CCreditText::load(CGameObject *obj, CScreenManager *screenManager,
 	_objectP = obj;
 	_screenManagerP = screenManager;
 	_field14 = v;
+
+	setup();
+
 	_ticks = g_vm->_events->getTicksCount();
 	_field40 = 0;
 	_field44 = 0xFF;
@@ -53,7 +56,95 @@ void CCreditText::load(CGameObject *obj, CScreenManager *screenManager,
 }
 
 void CCreditText::setup() {
-	// TODO
+	Common::SeekableReadStream *stream = g_vm->_filesManager->getResource(
+		CString::format("TEXT/155"));
+	int oldFontNumber = _screenManagerP->setFontNumber(3);
+	_fontHeight = _screenManagerP->getFontHeight();
+
+	while (stream->pos() < stream->size()) {
+		// Read in the line
+		CString srcLine = readLine(stream);
+
+		// Create a new group and line within it
+		CCreditLineGroup *group = new CCreditLineGroup();
+		CCreditLine *line = new CCreditLine(srcLine, 
+			_screenManagerP->stringWidth(srcLine));
+		group->_lines.push_back(line);
+
+		// Loop to add more lines to the group
+		bool hasDots = false;
+		while (stream->pos() < stream->size()) {
+			srcLine = readLine(stream);
+			if (srcLine.empty())
+				break;
+
+			CCreditLine *line = new CCreditLine(srcLine,
+				_screenManagerP->stringWidth(srcLine));
+			group->_lines.push_back(line);
+
+			if (srcLine.contains("...."))
+				hasDots = true;
+		}
+
+		_groups.push_back(group);
+	}
+
+	_groupIt = _groups.begin();
+	_lineIt = (*_groupIt)->_lines.begin();
+	_totalHeight = _objectP->getBounds().height() + _fontHeight * 2;
+}
+
+CString CCreditText::readLine(Common::SeekableReadStream *stream) {
+	CString line;
+	char c = stream->readByte();
+
+	while (c != '\r' && c != '\n' && c != '\0') {
+		line += c;
+
+		if (stream->pos() == stream->size())
+			break;
+		c = stream->readByte();
+	}
+
+	if (c == '\r') {
+		c = stream->readByte();
+		if (c != '\n')
+			stream->skip(-1);
+	}
+
+	return line;
+}
+
+void CCreditText::handleDots(CCreditLineGroup *group) {
+	uint maxWidth = 0;
+	CCreditLines::iterator second = group->_lines.begin();
+	++second;
+
+	// Figure out the maximum width of secondary lines
+	for (CCreditLines::iterator i = second; i != group->_lines.end(); ++i)
+		maxWidth = MAX(maxWidth, (*i)->_lineWidth);
+	
+	int charWidth = _screenManagerP->stringWidth(".");
+
+	// Process the secondary lines
+	for (CCreditLines::iterator i = second; i != group->_lines.end(); ++i) {
+		CCreditLine *line = *i;
+		if (line->_lineWidth >= maxWidth)
+			continue;
+
+		int dotsCount = (maxWidth + charWidth / 2 - line->_lineWidth) / charWidth;
+		int dotIndex = line->_line.indexOf("....");
+
+		if (dotIndex > 0) {
+			CString leftStr = line->_line.left(dotIndex);
+			CString dotsStr('.', dotsCount);
+			CString rightStr = line->_line.right(dotIndex);
+
+			line->_line = CString::format("%s%s%s", leftStr.c_str(),
+				dotsStr.c_str(), rightStr.c_str());
+			line->_lineWidth = maxWidth;
+		}
+	}
 }
 
 bool CCreditText::draw() {
diff --git a/engines/titanic/support/credit_text.h b/engines/titanic/support/credit_text.h
index 82da833bbe..ec8fc22cda 100644
--- a/engines/titanic/support/credit_text.h
+++ b/engines/titanic/support/credit_text.h
@@ -30,15 +30,21 @@ namespace Titanic {
 class CGameObject;
 class CScreenManager;
 
-class COverrideSubItem : public ListItem {
-
+class CCreditLine : public ListItem {
+public:
+	CString _line;
+	uint _lineWidth;
+public:
+	CCreditLine() : _lineWidth(0) {}
+	CCreditLine(const CString &line, uint lineWidth) : _line(line), _lineWidth(lineWidth) {}
 };
-typedef List<COverrideSubItem> CCreditTextSubList;
-
-class CCreditTextItem : public ListItem {
+typedef List<CCreditLine> CCreditLines;
 
+class CCreditLineGroup : public ListItem {
+public:
+	CCreditLines _lines;
 };
-typedef List<CCreditTextItem> CCreditTextList;
+typedef List<CCreditLineGroup> CCreditLineGroups;
 
 class CCreditText {
 private:
@@ -46,17 +52,27 @@ private:
 	 * Sets up needed data
 	 */
 	void setup();
+
+	/**
+	 * Read in a text line from the passed stream
+	 */
+	CString readLine(Common::SeekableReadStream *stream);
+
+	/**
+	 * Handles a group where the .... sequence was encountered
+	 */
+	void handleDots(CCreditLineGroup *group);
 public:
 	CScreenManager *_screenManagerP;
 	Rect _rect;
 	int _field14;
-	CCreditTextList _list;
+	CCreditLineGroups _groups;
 	uint _ticks;
 	uint _fontHeight;
 	CGameObject *_objectP;
-	int _field34;
-	int _field38;
-	int _field3C;
+	CCreditLineGroups::iterator _groupIt;
+	CCreditLines::iterator _lineIt;
+	uint _totalHeight;
 	int _field40;
 	int _field44;
 	int _field48;
diff --git a/engines/titanic/support/string.cpp b/engines/titanic/support/string.cpp
index d85fcfc515..cd39c03861 100644
--- a/engines/titanic/support/string.cpp
+++ b/engines/titanic/support/string.cpp
@@ -63,6 +63,11 @@ int CString::indexOf(char c) const {
 	return charP ? charP - c_str() : -1;
 }
 
+int CString::indexOf(const char *s) const {
+	const char *strP = strstr(c_str(), s);
+	return strP ? strP - c_str() : -1;
+}
+
 int CString::lastIndexOf(char c) const {
 	const char *charP = strrchr(c_str(), c);
 	return charP ? charP - c_str() : -1;
diff --git a/engines/titanic/support/string.h b/engines/titanic/support/string.h
index fdaf92cfad..9550ce88a7 100644
--- a/engines/titanic/support/string.h
+++ b/engines/titanic/support/string.h
@@ -75,6 +75,11 @@ public:
 	int indexOf(char c) const;
 
 	/**
+	 * Returns the index of the first occurance of a given string
+	 */
+	int indexOf(const char *s) const;
+
+	/**
 	 * Returns the index of the last occurance of a given character
 	 */
 	int lastIndexOf(char c) const;