Initial commit

engines/ultima/ultima0/gfx/gfx_surface.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ultima/ultima0/gfx/gfx_surface.h"
+#include "ultima/ultima0/gfx/font.h"
+#include "ultima/ultima0/ultima0.h"
+
+namespace Ultima {
+namespace Ultima0 {
+namespace Gfx {
+
+void GfxSurface::writeString(const Common::Point &pt, const Common::String &str,
+		Graphics::TextAlign align) {
+	_textPos = pt;
+	writeString(str, align);
+}
+
+void GfxSurface::writeString(const Common::String &str, Graphics::TextAlign align) {
+	size_t strSize = 0;
+	for (const char *p = str.c_str(); *p; ++p)
+		strSize += Common::isPrint(*p) ? 1 : 0;
+
+	switch (align) {
+	case Graphics::kTextAlignCenter:
+		_textPos.x -= strSize / 2;
+		break;
+	case Graphics::kTextAlignRight:
+		_textPos.x -= strSize;
+		break;
+	case Graphics::kTextAlignLeft:
+	default:
+		break;
+	}
+
+	for (const char *p = str.c_str(); *p; ++p) {
+		if (*p == '\n') {
+			assert(align == Graphics::kTextAlignLeft);
+			newLine();
+		} else if (*p < 32) {
+			setColor((byte)*p);
+		} else {
+			writeChar(*p);
+		}
+	}
+}
+
+void GfxSurface::writeChar(uint32 chr) {
+	if (chr >= ' ') {
+		Font::writeChar(this, chr, Common::Point(_textPos.x * GLYPH_WIDTH,
+			_textPos.y * GLYPH_HEIGHT), _textColor);
+		++_textPos.x;
+	}
+
+	if (_textPos.x >= TEXT_WIDTH || chr == '\n') {
+		newLine();
+	}
+}
+
+void GfxSurface::newLine() {
+	_textPos.x = 0;
+	_textPos.y++;
+
+	if (_textPos.y >= TEXT_HEIGHT) {
+		_textPos.y = TEXT_HEIGHT - 1;
+
+		// Scroll the screen contents up
+		blitFrom(*this, Common::Rect(0, GLYPH_HEIGHT, DEFAULT_SCX, DEFAULT_SCY),
+			Common::Point(0, 0));
+		fillRect(Common::Rect(0, DEFAULT_SCX - GLYPH_HEIGHT, DEFAULT_SCX, DEFAULT_SCY), 0);
+	}
+}
+
+void GfxSurface::setTextPos(const Common::Point &pt) {
+	_textPos = pt;
+}
+
+byte GfxSurface::setColor(byte color) {
+	byte oldColor = _textColor;
+	_textColor = color;
+	return oldColor;
+}
+
+byte GfxSurface::setColor(byte r, byte g, byte b) {
+	byte oldColor = _textColor;
+	_textColor = g_engine->_palette.findBestColor(r, g, b);
+	return oldColor;
+}
+
+} // namespace Gfx
+} // namespace Ultima0
+} // namespace Ultima