Initial commit

engines/cruise/mouse.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 "cruise/cruise_main.h"
+#include "cruise/staticres.h"
+
+#include "common/system.h"
+#include "graphics/cursorman.h"
+
+namespace Cruise {
+
+int16 main10;
+
+struct MouseCursor {
+	int hotspotX;
+	int hotspotY;
+	const byte *bitmap;
+};
+
+static const MouseCursor mouseCursors[] = {
+	{ 1, 1, mouseCursorNormal },
+	{ 0, 0, mouseCursorDisk },
+	{ 7, 7, mouseCursorCross },
+	{ 0, 0, mouseCursorNoMouse },
+	{ 10, 6, mouseCursorWalk },
+	{ 10, 6, mouseCursorExit },
+	{ 10, 6, mouseCursorMagnifyingGlass }
+};
+
+CursorType currentCursor = CURSOR_NOMOUSE;
+
+static const byte cursorPalette[] = {
+	0, 0, 0,
+	0xff, 0xff, 0xff
+};
+
+void changeCursor(CursorType eType) {
+	assert(eType >= 0 && eType < CURSOR_MAX);
+	if (currentCursor != eType) {
+		byte mouseCursor[16 * 16];
+		const MouseCursor *mc = &mouseCursors[eType];
+		const byte *src = mc->bitmap;
+		for (int i = 0; i < 32; ++i) {
+			int offs = i * 8;
+			for (byte mask = 0x80; mask != 0; mask >>= 1) {
+				if (src[0] & mask) {
+					mouseCursor[offs] = 1;
+				} else if (src[32] & mask) {
+					mouseCursor[offs] = 0;
+				} else {
+					mouseCursor[offs] = 0xFF;
+				}
+				++offs;
+			}
+			++src;
+		}
+		CursorMan.replaceCursor(mouseCursor, 16, 16, mc->hotspotX, mc->hotspotY, 0xFF);
+		CursorMan.replaceCursorPalette(cursorPalette, 0, 2);
+		currentCursor = eType;
+	}
+}
+
+bool isMouseOn() {
+	return (currentCursor != CURSOR_NOMOUSE) && CursorMan.isVisible();
+}
+
+void mouseOff() {
+	CursorMan.showMouse(false);
+	g_system->updateScreen();
+}
+
+void mouseOn() {
+	CursorMan.showMouse(true);
+	g_system->updateScreen();
+}
+
+} // End of namespace Cruise