aboutsummaryrefslogtreecommitdiff
path: root/engines/macventure/cursor.cpp
blob: 94b69e9b117dd6f719cec783dc3c6642902fe958 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
/* 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.
 *
 */

/*
 * 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->selectForDrag(_pos);
		break;
	case kCursorDCStart:
		g_system->getTimerManager()->installTimerProc(&cursorTimerHandler, 300000, this, "macVentureCursor");
		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