SHERLOCK: RT: Split TattooEngine code into separate widget classes

1 files changed, 210 insertions, 0 deletions

diff --git a/engines/sherlock/tattoo/widget_credits.cpp b/engines/sherlock/tattoo/widget_credits.cpp
new file mode 100644
index 0000000000..dcb73b5adb
--- /dev/null
+++ b/engines/sherlock/tattoo/widget_credits.cpp
@@ -0,0 +1,210 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "sherlock/tattoo/widget_credits.h"
+#include "sherlock/tattoo/tattoo.h"
+
+namespace Sherlock {
+
+namespace Tattoo {
+
+WidgetCredits::WidgetCredits(SherlockEngine *vm) : _vm(vm) {
+	_creditSpeed = 4;
+	_creditsActive = false;
+}
+
+void WidgetCredits::initCredits() {
+	Resources &res = *_vm->_res;
+	Screen &screen = *_vm->_screen;
+	Common::SeekableReadStream *stream = res.load("credits.txt");
+	int spacing = screen.fontHeight() * 2;
+	int yp = screen.h();
+
+	_creditsActive = true;
+	_creditLines.clear();
+
+	while (stream->pos() < stream->size()) {
+		Common::String line = stream->readLine();
+
+		if (line.hasPrefix("Scroll Speed")) {
+			const char *p = line.c_str() + 12;
+			while ((*p < '0') || (*p > '9'))
+				p++;
+			
+			_creditSpeed = atoi(p);
+		} else if (line.hasPrefix("Y Spacing")) {
+			const char *p = line.c_str() + 12;
+			while ((*p < '0') || (*p > '9'))
+				p++;
+
+			spacing = atoi(p) + screen.fontHeight() + 1;
+		} else {
+			int width = screen.stringWidth(line) + 2;
+
+			_creditLines.push_back(CreditLine(line, Common::Point((screen.w() - width) / 2 + 1, yp), width));
+			yp += spacing;
+		}
+	}
+
+	// Post-processing for finding split lines
+	for (int l = 0; l < (int)_creditLines.size(); ++l) {
+		CreditLine &cl = _creditLines[l];
+		const char *p = strchr(cl._line.c_str(), '-');
+
+		if (p != nullptr && p[1] == '>') {
+			cl._line2 = Common::String(p + 3);
+			cl._line = Common::String(cl._line.c_str(), p);
+			
+			int width = cl._width;
+			int width1 = screen.stringWidth(cl._line);
+			int width2 = screen.stringWidth(cl._line2);
+
+			int c = 1;
+			for (int l1 = l + 1; l1 < (int)_creditLines.size(); ++l1) {
+				if ((p = strchr(_creditLines[l1]._line.c_str(), '-')) != nullptr) {
+					if (p[1] == '>') {
+						Common::String line1 = Common::String(_creditLines[l1]._line.c_str(), p);
+						Common::String line2 = Common::String(p + 3);
+
+						width1 = MAX(width1, screen.stringWidth(line1));
+
+						if (screen.stringWidth(line2) > width2)
+							width2 = screen.stringWidth(line2);
+						++c;
+					} else {
+						break;
+					}
+				} else {
+					break;
+				}
+			}
+
+			width = width1 + width2 + screen.widestChar();
+			width1 += screen.widestChar();
+
+			for (int l1 = l; l1 < l + c; ++l1) {
+				_creditLines[l1]._width = width;
+				_creditLines[l1]._xOffset = width1;
+			}
+
+			l += c - 1;
+		}
+	}
+
+	delete stream;
+}
+
+void WidgetCredits::drawCredits() {
+	Screen &screen = *_vm->_screen;
+	Common::Rect screenRect(0, 0, screen.w(), screen.h());
+	Surface &bb1 = screen._backBuffer1;
+
+	for (uint idx = 0; idx < _creditLines.size() && _creditLines[idx]._position.y < screen.h(); ++idx) {
+		if (screenRect.contains(_creditLines[idx]._position)) {
+			if (!_creditLines[idx]._line2.empty()) {
+				int x1 = _creditLines[idx]._position.x;
+				int x2 = x1 + _creditLines[idx]._xOffset;
+				const Common::String &line1 = _creditLines[idx]._line;
+				const Common::String &line2 = _creditLines[idx]._line2;
+
+				bb1.writeString(line1, Common::Point(x1 - 1, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(line1, Common::Point(x1, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(line1, Common::Point(x1 + 1, _creditLines[idx]._position.y - 1), 0);
+
+				bb1.writeString(line1, Common::Point(x1 - 1, _creditLines[idx]._position.y), 0);
+				bb1.writeString(line1, Common::Point(x1 + 1, _creditLines[idx]._position.y), 0);
+
+				bb1.writeString(line1, Common::Point(x1 - 1, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(line1, Common::Point(x1, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(line1, Common::Point(x1 + 1, _creditLines[idx]._position.y + 1), 0);
+
+				bb1.writeString(line1, Common::Point(x1, _creditLines[idx]._position.y), INFO_TOP);
+
+				bb1.writeString(line2, Common::Point(x2 - 1, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(line2, Common::Point(x2, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(line2, Common::Point(x2 + 1, _creditLines[idx]._position.y - 1), 0);
+
+				bb1.writeString(line2, Common::Point(x2 - 1, _creditLines[idx]._position.y), 0);
+				bb1.writeString(line2, Common::Point(x2 + 1, _creditLines[idx]._position.y), 0);
+
+				bb1.writeString(line2, Common::Point(x2 - 1, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(line2, Common::Point(x2, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(line2, Common::Point(x2 + 1, _creditLines[idx]._position.y + 1), 0);
+
+				bb1.writeString(line2, Common::Point(x2, _creditLines[idx]._position.y), INFO_TOP);
+			} else {
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x - 1, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x, _creditLines[idx]._position.y - 1), 0);
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x + 1, _creditLines[idx]._position.y - 1), 0);
+
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x - 1, _creditLines[idx]._position.y), 0);
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x + 1, _creditLines[idx]._position.y), 0);
+
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x - 1, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x, _creditLines[idx]._position.y + 1), 0);
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x + 1, _creditLines[idx]._position.y + 1), 0);
+
+				bb1.writeString(_creditLines[idx]._line, Common::Point(_creditLines[idx]._position.x, _creditLines[idx]._position.y), INFO_TOP);
+			}
+		}
+	}
+}
+
+void WidgetCredits::blitCredits() {
+	Screen &screen = *_vm->_screen;
+	Common::Rect screenRect(0, -_creditSpeed, screen.w(), screen.h() + _creditSpeed);
+
+	for (uint idx = 0; idx < _creditLines.size(); ++idx) {
+		if (screenRect.contains(_creditLines[idx]._position)) {
+			Common::Rect r(_creditLines[idx]._width, screen.fontHeight() + 2);
+			r.moveTo(_creditLines[idx]._position.x, _creditLines[idx]._position.y - 1);
+
+			screen.slamRect(r);
+		}
+
+		_creditLines[idx]._position.y -= _creditSpeed;
+	}
+}
+
+void WidgetCredits::eraseCredits() {
+	Screen &screen = *_vm->_screen;
+	Common::Rect screenRect(0, -_creditSpeed, screen.w(), screen.h() + _creditSpeed);
+
+	for (uint idx = 0; idx < _creditLines.size(); ++idx) {
+		if (screenRect.contains(_creditLines[idx]._position)) {
+			Common::Rect r(_creditLines[idx]._width, screen.fontHeight() + 3);
+			r.moveTo(_creditLines[idx]._position.x, _creditLines[idx]._position.y - 1 + _creditSpeed);
+
+			screen.restoreBackground(r);
+		}
+	}
+
+	if (_creditLines[_creditLines.size() - 1]._position.y < -_creditSpeed) {
+		_creditLines.clear();
+		_creditsActive = false;
+		_vm->setFlags(!3000);
+	}
+}
+
+} // End of namespace Tattoo
+
+} // End of namespace Sherlock