MADS: Beginnings of dialog class hierarchy

1 files changed, 200 insertions, 0 deletions

diff --git a/engines/mads/dialogs.cpp b/engines/mads/dialogs.cpp
new file mode 100644
index 0000000000..4e64f08822
--- /dev/null
+++ b/engines/mads/dialogs.cpp
@@ -0,0 +1,200 @@
+/* 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 "common/scummsys.h"
+#include "common/config-manager.h"
+#include "mads/mads.h"
+#include "mads/graphics.h"
+#include "mads/msurface.h"
+#include "mads/nebular/dialogs_nebular.h"
+
+namespace MADS {
+
+Dialog::Dialog(MADSEngine *vm): _vm(vm), _savedSurface(nullptr),
+		_position(Common::Point(-1, -1)), _width(0), _height(0) {
+}
+
+Dialog::~Dialog() {
+	delete _savedSurface;
+}
+
+
+void Dialog::save(MSurface *s) {
+	_savedSurface = MSurface::init(_width, _height);
+	s->copyTo(_savedSurface, 
+		Common::Rect(_position.x, _position.y, _position.x + _width, _position.y + _height),
+		Common::Point());
+}
+
+void Dialog::restore(MSurface *s) {
+	_savedSurface->copyTo(s, _position);
+	delete _savedSurface;
+	_savedSurface = nullptr;
+}
+
+/*------------------------------------------------------------------------*/
+
+TextDialog::TextDialog(MADSEngine *vm, const Common::String &fontName, 
+		const Common::Point &pos, int maxChars):
+		Dialog(vm) {
+	_vm = vm;
+	_fontName = fontName;
+	_position = pos;
+	
+	_vm->_font->setFont(FONT_INTERFACE);
+	_vm->_font->setColors(TEXTDIALOG_FONT, TEXTDIALOG_FONT, TEXTDIALOG_FONT, TEXTDIALOG_FONT);
+
+	_innerWidth = (_vm->_font->maxWidth() + 1) * maxChars;
+	_width = _innerWidth + 10;
+	_lineSize = maxChars * 2;
+	_lineWidth = 0;
+	_currentX = 0;
+	_numLines = 0;
+	Common::fill(&_lineXp[0], &_lineXp[TEXT_DIALOG_MAX_LINES], 0);
+	
+	Common::copy(&_vm->_palette->_mainPalette[TEXTDIALOG_F8 * 3], 
+		&_vm->_palette->_mainPalette[TEXTDIALOG_F8 * 3 + 8 * 3], 
+		&_savedPalette[0]);
+	Palette::setGradient(_vm->_palette->_mainPalette, TEXTDIALOG_F8, 2, 0x24, 0x20);
+	Palette::setGradient(_vm->_palette->_mainPalette, TEXTDIALOG_FA, 2, 0x27, 0x1C);
+	Palette::setGradient(_vm->_palette->_mainPalette, TEXTDIALOG_FC, 2, 0x24, 0x20);
+	Palette::setGradient(_vm->_palette->_mainPalette, TEXTDIALOG_FE, 1, 0x37, 0x37);
+
+	_vm->_palette->setPalette(_vm->_palette->_mainPalette + (TEXTDIALOG_F8 * 3),
+		TEXTDIALOG_F8, 8);
+}
+
+TextDialog::~TextDialog() {
+}
+
+void TextDialog::addLine(const Common::String &line, bool underline) {
+	if (_lineWidth > 0 || _currentX > 0)
+		incNumLines();
+
+	int stringWidth = _vm->_font->getWidth(line);
+	if (stringWidth >= _innerWidth || (int)line.size() >= _lineSize) {
+		wordWrap(line);
+	} else {
+		_lineXp[_numLines] = (_innerWidth / 2) - (stringWidth / 2);
+		_lines[_numLines] = line;
+
+		if (underline)
+			underlineLine();
+	}
+
+	incNumLines();
+}
+
+void TextDialog::underlineLine() {
+	_lineXp[_numLines] |= 0x80;
+}
+
+void TextDialog::incNumLines() {
+	_lineWidth = 0;
+	_currentX = 0;
+	if (++_numLines == TEXT_DIALOG_MAX_LINES)
+		error("Exceeded text dialog line max");
+}
+
+void TextDialog::wordWrap(const Common::String &line) {
+	Common::String tempLine;
+
+	if (!line.empty()) {
+		const char *srcP = line.c_str();
+		
+		do {
+			tempLine = "";
+			bool endWord = false;
+			bool newLine = false;
+			bool continueFlag = true;
+
+			do {
+				if (!*srcP) {
+					continueFlag = false;
+				} else {
+					tempLine += *srcP;
+
+					if (*srcP == 10) {
+						continueFlag = false;
+						newLine = true;
+						++srcP;
+						tempLine.deleteLastChar();
+					} else if (*srcP == ' ') {
+						++srcP;
+						endWord = true;
+					} else if (!endWord) {
+						++srcP;
+					} else {
+						tempLine.deleteLastChar();
+						continueFlag = false;
+					}
+				}
+			} while (continueFlag);
+
+			if (tempLine.hasSuffix(" "))
+				tempLine.deleteLastChar();
+
+			Common::String tempLine2;
+			if (_currentX > 0)
+				tempLine2 += ' ';
+			tempLine2 += tempLine;
+
+			int lineWidth = _vm->_font->getWidth(tempLine2, 1);
+			if (((_currentX + (int)tempLine2.size()) > _lineSize) ||
+					((_lineWidth + lineWidth) > _innerWidth)) {
+				incNumLines();
+				appendLine(tempLine);
+			} else {
+				appendLine(tempLine2);
+			}
+
+			if (newLine)
+				incNumLines();
+		} while (*srcP);
+	}
+}
+
+void TextDialog::appendLine(const Common::String &line) {
+	_currentX += line.size();
+	_lineWidth += _vm->_font->getWidth(line, 1);
+	_lines[_numLines] += line;
+}
+
+/*------------------------------------------------------------------------*/
+
+MessageDialog::MessageDialog(MADSEngine *vm, int maxChars, ...): 
+		TextDialog(vm, FONT_INTERFACE, Common::Point(-1, -1), maxChars) {
+	// Add in passed line list
+	va_list va;
+	va_start(va, maxChars);
+
+	const char *line = va_arg(va, const char *);
+	while (line) {
+		addLine(line);
+		line = va_arg(va, const char *);
+	}
+	va_end(va);
+
+	// TODO
+}
+
+} // End of namespace MADS