scummvm/engines/macventure/cursor.cpp
2021-12-26 18:48:43 +01:00

136 lines
3.5 KiB
C++

/* 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->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