Initial commit

engines/titanic/support/mouse_cursor.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 "titanic/support/mouse_cursor.h"
+#include "titanic/support/screen_manager.h"
+#include "titanic/support/transparency_surface.h"
+#include "titanic/support/video_surface.h"
+#include "titanic/events.h"
+#include "titanic/input_handler.h"
+#include "titanic/messages/mouse_messages.h"
+#include "titanic/titanic.h"
+#include "graphics/cursorman.h"
+#include "graphics/screen.h"
+
+namespace Titanic {
+
+#define CURSOR_SIZE 64
+
+static const int CURSOR_DATA[NUM_CURSORS][4] = {
+	{ 1, 136, 19, 18 },
+	{ 2, 139, 1, 1 },
+	{ 3, 140, 32, 1 },
+	{ 4, 137, 13, 0 },
+	{ 5, 145, 13, 0 },
+	{ 6, 144, 13, 22 },
+	{ 7, 137, 14, 0 },
+	{ 8, 148, 22, 40 },
+	{ 9, 136, 19, 18 },
+	{ 10, 143, 11, 11 },
+	{ 11, 146, 11, 11 },
+	{ 12, 136, 19, 18 },
+	{ 13, 136, 19, 25 },
+	{ 14, 136, 13, 22 },
+	{ 15, 138, 20, 28 }
+};
+
+CMouseCursor::CursorEntry::~CursorEntry() {
+	delete _surface;
+}
+
+CMouseCursor::CMouseCursor(CScreenManager *screenManager) :
+		_screenManager(screenManager), _cursorId(CURSOR_HOURGLASS), _hideCounter(0),
+		_busyCount(0), _cursorSuppressed(false), _setCursorCount(0), _inputEnabled(true), _fieldE8(0) {
+	loadCursorImages();
+	setCursor(CURSOR_ARROW);
+	CursorMan.showMouse(true);
+}
+
+CMouseCursor::~CMouseCursor() {
+}
+
+void CMouseCursor::loadCursorImages() {
+	const CResourceKey key("ycursors.avi");
+
+	// Iterate through getting each cursor
+	for (int idx = 0; idx < NUM_CURSORS; ++idx) {
+		assert(CURSOR_DATA[idx][0] == (idx + 1));
+		_cursors[idx]._centroid = Common::Point(CURSOR_DATA[idx][2],
+			CURSOR_DATA[idx][3]);
+
+		// Create the surface
+		CVideoSurface *surface = _screenManager->createSurface(CURSOR_SIZE, CURSOR_SIZE);
+
+		// Open the cursors video and move to the given frame
+		OSMovie *movie = new OSMovie(key, surface);
+		movie->setFrame(idx);
+		Graphics::ManagedSurface *transSurface = movie->duplicateTransparency();
+
+		// Create a managed surface to hold the RGBA version of the cursor
+		Graphics::PixelFormat rgbaFormat(4, 8, 8, 8, 8, 24, 16, 8, 0);
+		_cursors[idx]._surface = new Graphics::ManagedSurface(CURSOR_SIZE, CURSOR_SIZE, rgbaFormat);
+
+		// Copy the cursor from the movie's video surface
+		surface->lock();
+		_cursors[idx]._surface->blitFrom(*surface->getRawSurface());
+		surface->unlock();
+
+		// We need to separately merge in the transparency surface
+		for (int y = 0; y < CURSOR_SIZE; ++y) {
+			const byte *srcP = (const byte *)transSurface->getBasePtr(0, y);
+			uint32 *destP = (uint32 *)_cursors[idx]._surface->getBasePtr(0, y);
+
+			for (int x = 0; x < CURSOR_SIZE; ++x, ++srcP, ++destP)
+				*destP = (*destP & ~0xff) | *srcP;
+		}
+
+		delete movie;
+		delete transSurface;
+		delete surface;
+	}
+}
+
+void CMouseCursor::incBusyCount() {
+	if (_busyCount == 0)
+		setCursor(CURSOR_HOURGLASS);
+	++_busyCount;
+}
+
+void CMouseCursor::decBusyCount() {
+	assert(_busyCount > 0);
+	if (--_busyCount == 0)
+		setCursor(CURSOR_ARROW);
+}
+
+void CMouseCursor::incHideCounter() {
+	if (_hideCounter++ == 0)
+		CursorMan.showMouse(false);
+}
+
+void CMouseCursor::decHideCounter() {
+	--_hideCounter;
+	assert(_hideCounter >= 0);
+	if (_hideCounter == 0)
+		CursorMan.showMouse(true);
+}
+
+void CMouseCursor::suppressCursor() {
+	_cursorSuppressed = true;
+	CursorMan.showMouse(false);
+}
+
+void CMouseCursor::unsuppressCursor() {
+	_cursorSuppressed = false;
+	if (_hideCounter == 0)
+		CursorMan.showMouse(true);
+}
+
+void CMouseCursor::setCursor(CursorId cursorId) {
+	++_setCursorCount;
+
+	if (cursorId != _cursorId && _busyCount == 0) {
+		const CursorEntry &ce = _cursors[cursorId - 1];
+		_cursorId = cursorId;
+
+		// Set the cursor
+		CursorMan.replaceCursor(*ce._surface, ce._centroid.x, ce._centroid.y, 0, false);
+	}
+}
+
+void CMouseCursor::update() {
+	if (!_inputEnabled && _moveStartTime) {
+		uint32 time = CLIP(g_system->getMillis(), _moveStartTime, _moveEndTime);
+		Common::Point pt(
+			_moveStartPos.x + (_moveDestPos.x - _moveStartPos.x) *
+				(int)(time - _moveStartTime) / (int)(_moveEndTime - _moveStartTime),
+			_moveStartPos.y + (_moveDestPos.y - _moveStartPos.y) *
+			(int)(time - _moveStartTime) / (int)(_moveEndTime - _moveStartTime)
+		);
+
+		if (pt != g_vm->_events->getMousePos()) {
+			g_vm->_events->setMousePos(pt);
+
+			CInputHandler &inputHandler = *CScreenManager::_screenManagerPtr->_inputHandler;
+			CMouseMoveMsg msg(pt, 0);
+			inputHandler.handleMessage(msg, false);
+		}
+
+		if (time == _moveEndTime)
+			_moveStartTime = _moveEndTime = 0;
+	}
+}
+
+void CMouseCursor::disableControl() {
+	_inputEnabled = false;
+	CScreenManager::_screenManagerPtr->_inputHandler->incLockCount();
+}
+
+void CMouseCursor::enableControl() {
+	_inputEnabled = true;
+	_fieldE8 = 0;
+	CScreenManager::_screenManagerPtr->_inputHandler->decLockCount();
+}
+
+void CMouseCursor::setPosition(const Point &pt, double duration) {
+	_moveStartPos = g_vm->_events->getMousePos();
+	_moveDestPos = pt;
+	_moveStartTime = g_system->getMillis();
+	_moveEndTime = _moveStartTime + (int)duration;
+	update();
+}
+
+} // End of namespace Titanic