LASTEXPRESS: Merge in the engine.

svn-id: r53579

1 files changed, 144 insertions, 0 deletions

diff --git a/engines/lastexpress/data/cursor.cpp b/engines/lastexpress/data/cursor.cpp
new file mode 100644
index 0000000000..4e7003578a
--- /dev/null
+++ b/engines/lastexpress/data/cursor.cpp
@@ -0,0 +1,144 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "lastexpress/data/cursor.h"
+
+#include "lastexpress/lastexpress.h"
+
+#include "common/system.h"
+#include "graphics/cursorman.h"
+
+namespace LastExpress {
+
+Cursor::Cursor() : _current(kCursorMAX) {
+	memset(&_cursors, 0, sizeof(_cursors));
+}
+
+bool Cursor::load(Common::SeekableReadStream *stream) {
+	if (!stream)
+		return false;
+
+	// Load the whole file to memory
+	Common::MemoryReadStream *data = stream->readStream((uint32) stream->size());
+	delete stream;
+	if (!data)
+		return false;
+
+	// Read the hotspot data
+	for (int i = 0; i < kCursorMAX; i++) {
+		_cursors[i].hotspotX = data->readUint16LE();
+		_cursors[i].hotspotY = data->readUint16LE();
+		debugC(15, kLastExpressDebugCursor | kLastExpressDebugAll,
+			"Cursor %d hotspot x: %d, hotspot y: %d",
+			i, _cursors[i].hotspotX, _cursors[i].hotspotY);
+	}
+
+	// Read the pixel data
+	for (int i = 0; i < kCursorMAX; i++)
+		for (int pix = 0; pix < 32 * 32; pix++)
+			_cursors[i].image[pix] = data->readUint16LE();
+
+	delete data;
+	return true;
+}
+
+void Cursor::show(bool visible) const {
+	CursorMan.showMouse(visible);
+}
+
+bool Cursor::checkStyle(CursorStyle style) const {
+	if (style >= kCursorMAX) {
+		debugC(2, kLastExpressDebugGraphics, "Trying to use an invalid cursor style: was %d, max %d", (int)style, kCursorMAX);
+		return false;
+	}
+
+	return true;
+}
+
+void Cursor::setStyle(CursorStyle style) {
+	if (!checkStyle(style))
+		return;
+
+	if (style == _current)
+		return;
+
+	debugC(10, kLastExpressDebugCursor | kLastExpressDebugAll, "Cursor: setting style: %d", style);
+
+	// Save the new cursor
+	_current = style;
+
+	// Reuse the screen pixel format
+	Graphics::PixelFormat pf = g_system->getScreenFormat();
+	CursorMan.replaceCursor((const byte *)getCursorImage(style),
+	                        32, 32, _cursors[style].hotspotX, _cursors[style].hotspotY,
+	                        0, 1, &pf);
+}
+
+const uint16 *Cursor::getCursorImage(CursorStyle style) const {
+	if (!checkStyle(style))
+		return NULL;
+
+	return _cursors[style].image;
+}
+
+
+Icon::Icon(CursorStyle style) : _style(style), _x(0), _y(0), _brightness(100) {}
+
+void Icon::setPosition(int16 x, int16 y) {
+	_x = x;
+	_y = y;
+}
+
+void Icon::setBrightness(uint brightness) {
+	assert(brightness <= 100);
+
+	_brightness = (uint8)brightness;
+}
+
+Common::Rect Icon::draw(Graphics::Surface *surface) {
+	const uint16 *image = ((LastExpressEngine *)g_engine)->getCursor()->getCursorImage((CursorStyle)_style);
+	if (!image)
+		return Common::Rect();
+
+	// TODO adjust brightness. The original game seems to be using a table for that (at least in the highlighting case)
+	for (int j = 0; j < 32; j++) {
+		uint16 *s = (uint16 *)surface->getBasePtr(_x, _y + j);
+		for (int i = 0; i < 32; i++) {
+			if (_brightness == 100)
+				*s = *image;
+			else
+				// HACK change color to show highlight
+				*s = (*image & 0x739C) >> 1;
+
+			// Update the image and surface pointers
+			image++;
+			s++;
+		}
+	}
+
+	return Common::Rect(_x, _y, _x + 32, _y + 32);
+}
+
+} // End of namespace LastExpress