Initial commit

engines/macventure/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/>.
+ *
+ */
+
+/*
+ * Based on
+ * WebVenture (c) 2010, Sean Kasun
+ * https://github.com/mrkite/webventure, http://seancode.com/webventure/
+ *
+ * Used with explicit permission from the author
+ */
+
+#include "macventure/gui.h"
+
+namespace MacVenture {
+
+static void cursorTimerHandler(void *refCon);
+
+static const ClickState _transitionTable[kCursorStateCount][kCursorInputCount] = {
+	/*				Button down,		Button Up,		Tick		*/
+	/* Idle */		{kCursorSCStart,	kCursorIdle,	kCursorIdle	},
+	/* SC Start */	{kCursorSCStart,	kCursorDCStart,	kCursorSCDrag},
+	/* SC Do */		{kCursorSCDrag, 	kCursorIdle,	kCursorSCDrag},
+	/* DC Start */	{kCursorDCDo,		kCursorDCStart,	kCursorSCSink},
+	/* DC Do */		{kCursorDCDo,		kCursorIdle,	kCursorDCDo	},
+	/* SC Sink */	{kCursorIdle,		kCursorIdle,	kCursorIdle	}
+};
+
+Cursor::Cursor(Gui *gui) {
+	_gui = gui;
+	_state = kCursorIdle;
+}
+Cursor::~Cursor() {}
+
+void Cursor::tick() {
+	changeState(kTickCol);
+}
+
+bool Cursor::processEvent(const Common::Event &event) {
+	if (event.type == Common::EVENT_MOUSEMOVE) {
+		_pos = event.mouse;
+		return true;
+	}
+	if (event.type == Common::EVENT_LBUTTONDOWN) {
+		changeState(kButtonDownCol);
+		return true;
+	}
+	if (event.type == Common::EVENT_LBUTTONUP) {
+		changeState(kButtonUpCol);
+		return true;
+	}
+
+	return false;
+}
+
+Common::Point Cursor::getPos() {
+	return _pos;
+}
+
+bool Cursor::canSelectDraggable() {
+	return _state == kCursorSCDrag;
+}
+
+void Cursor::changeState(CursorInput input) {
+	debugC(3, kMVDebugGUI, "Change cursor state: [%d] -> [%d]", _state, _transitionTable[_state][input]);
+	if (_state != _transitionTable[_state][input]) {
+		executeStateOut();
+		_state = _transitionTable[_state][input];
+		executeStateIn();
+	}
+}
+
+void Cursor::executeStateIn() {
+	switch (_state) {
+	case kCursorSCStart:
+		g_system->getTimerManager()->installTimerProc(&cursorTimerHandler, 300000, this, "macVentureCursor");
+		_gui->select(_pos, false, false);
+		break;
+	case kCursorDCStart:
+		g_system->getTimerManager()->installTimerProc(&cursorTimerHandler, 300000, this, "macVentureCursor");
+		_gui->select(_pos, false, true);
+		break;
+	case kCursorSCSink:
+		_gui->handleSingleClick();
+		changeState(kTickCol);
+		break;
+	default:
+		break;
+	}
+}
+
+void Cursor::executeStateOut() {
+	switch (_state) {
+	case kCursorIdle:
+		break;
+	case kCursorSCStart:
+		g_system->getTimerManager()->removeTimerProc(&cursorTimerHandler);
+		break;
+	case kCursorSCDrag:
+		_gui->handleSingleClick();
+		break;
+	case kCursorDCStart:
+		g_system->getTimerManager()->removeTimerProc(&cursorTimerHandler);
+		break;
+	case kCursorDCDo:
+		_gui->handleDoubleClick();
+		break;
+	default:
+		break;
+	}
+}
+
+static void cursorTimerHandler(void *refCon) {
+	Cursor *cursor = (Cursor *)refCon;
+	cursor->tick();
+}
+
+
+} // End of namespace MacVenture