mirror of
https://github.com/libretro/scummvm.git
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384 lines
8.7 KiB
C++
384 lines
8.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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/*
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* This code is based on Labyrinth of Time code with assistance of
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*
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* Copyright (c) 1993 Terra Nova Development
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* Copyright (c) 2004 The Wyrmkeep Entertainment Co.
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*
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*/
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#include "common/events.h"
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#include "lab/lab.h"
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#include "lab/dispman.h"
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#include "lab/eventman.h"
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#include "lab/image.h"
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namespace Lab {
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static const byte mouseData[] = {
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1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 7, 1, 0, 0, 0, 0, 0, 0, 0,
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1, 7, 7, 1, 0, 0, 0, 0, 0, 0,
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1, 7, 7, 7, 1, 0, 0, 0, 0, 0,
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1, 7, 7, 7, 7, 1, 0, 0, 0, 0,
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1, 7, 7, 7, 7, 7, 1, 0, 0, 0,
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1, 7, 7, 7, 7, 7, 7, 1, 0, 0,
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1, 7, 7, 7, 7, 7, 7, 7, 1, 0,
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1, 7, 7, 7, 7, 7, 1, 1, 1, 1,
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1, 7, 7, 1, 7, 7, 1, 0, 0, 0,
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1, 7, 1, 0, 1, 7, 7, 1, 0, 0,
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1, 1, 0, 0, 1, 7, 7, 1, 0, 0,
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0, 0, 0, 0, 0, 1, 7, 7, 1, 0,
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0, 0, 0, 0, 0, 1, 7, 7, 1, 0,
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0, 0, 0, 0, 0, 0, 1, 1, 0, 0
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};
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#define MOUSE_WIDTH 10
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#define MOUSE_HEIGHT 15
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/**
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* Checks whether or not the cords fall within one of the buttons in a list
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* of buttons.
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*/
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Button *EventManager::checkButtonHit(ButtonList *buttonList, Common::Point pos) {
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for (ButtonList::iterator buttonItr = buttonList->begin(); buttonItr != buttonList->end(); ++buttonItr) {
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Button *button = *buttonItr;
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Common::Rect buttonRect(button->_x, button->_y, button->_x + button->_image->_width - 1, button->_y + button->_image->_height - 1);
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if (buttonRect.contains(pos) && button->_isEnabled) {
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if (_vm->_isHiRes) {
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_hitButton = button;
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} else {
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mouseHide();
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button->_altImage->drawImage(button->_x, button->_y);
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mouseShow();
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for (uint16 i = 0; i < 3; i++)
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_vm->waitTOF();
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mouseHide();
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button->_image->drawImage(button->_x, button->_y);
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mouseShow();
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}
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return button;
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}
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}
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return nullptr;
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}
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void EventManager::attachButtonList(ButtonList *buttonList) {
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if (_screenButtonList != buttonList)
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_lastButtonHit = nullptr;
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_screenButtonList = buttonList;
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}
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Button *EventManager::getButton(uint16 id) {
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for (ButtonList::iterator buttonItr = _screenButtonList->begin(); buttonItr != _screenButtonList->end(); ++buttonItr) {
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Button *button = *buttonItr;
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if (button->_buttonId == id)
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return button;
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}
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return nullptr;
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}
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EventManager::EventManager(LabEngine *vm) : _vm(vm) {
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_leftClick = false;
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_rightClick = false;
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_mouseHidden = true;
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_lastButtonHit = nullptr;
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_screenButtonList = nullptr;
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_hitButton = nullptr;
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_nextKeyIn = 0;
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_nextKeyOut = 0;
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_mousePos = Common::Point(0, 0);
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_mouseAtEdge = false;
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for (int i = 0; i < 64; i++)
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_keyBuf[i] = 0;
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}
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void EventManager::mouseHandler(int flag, Common::Point pos) {
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if (flag & 0x02) {
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// Left mouse button click
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Button *tmp = nullptr;
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if (_screenButtonList)
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tmp = checkButtonHit(_screenButtonList, _vm->_isHiRes ? pos : Common::Point(pos.x / 2, pos.y));
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if (tmp)
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_lastButtonHit = tmp;
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else
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_leftClick = true;
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}
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if (flag & 0x08)
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// Right mouse button click
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_rightClick = true;
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}
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void EventManager::updateMouse() {
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bool doUpdateDisplay = false;
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if (!_mouseHidden)
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doUpdateDisplay = true;
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if (_hitButton) {
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mouseHide();
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_hitButton->_altImage->drawImage(_hitButton->_x, _hitButton->_y);
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mouseShow();
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for (uint16 i = 0; i < 3; i++)
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_vm->waitTOF();
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mouseHide();
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_hitButton->_image->drawImage(_hitButton->_x, _hitButton->_y);
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mouseShow();
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doUpdateDisplay = true;
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_hitButton = nullptr;
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}
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if (doUpdateDisplay)
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_vm->_graphics->screenUpdate();
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}
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/**
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* Initializes the mouse.
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*/
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void EventManager::initMouse() {
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g_system->setMouseCursor(mouseData, MOUSE_WIDTH, MOUSE_HEIGHT, 0, 0, 0);
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g_system->showMouse(false);
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setMousePos(Common::Point(0, 0));
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}
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/**
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* Shows the mouse.
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*/
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void EventManager::mouseShow() {
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if (_mouseHidden) {
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processInput();
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_mouseHidden = false;
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}
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g_system->showMouse(true);
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}
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/**
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* Hides the mouse.
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*/
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void EventManager::mouseHide() {
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if (!_mouseHidden) {
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_mouseHidden = true;
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g_system->showMouse(false);
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}
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}
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/**
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* Gets the current mouse co-ordinates. NOTE: On IBM version, will scale
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* from virtual to screen co-ordinates automatically.
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*/
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Common::Point EventManager::getMousePos() {
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if (_vm->_isHiRes)
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return _mousePos;
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else
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return Common::Point(_mousePos.x / 2, _mousePos.y);
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}
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/**
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* Moves the mouse to new co-ordinates.
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*/
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void EventManager::setMousePos(Common::Point pos) {
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if (_vm->_isHiRes)
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g_system->warpMouse(pos.x, pos.y);
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else
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g_system->warpMouse(pos.x * 2, pos.y);
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if (!_mouseHidden)
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processInput();
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}
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/**
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* Checks whether or not the mouse buttons have been pressed, and the last
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* co-ordinates of the button press. leftbutton tells whether to check the
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* left or right button.
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*/
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bool EventManager::mouseButton(uint16 *x, uint16 *y, bool leftButton) {
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if (leftButton) {
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if (_leftClick) {
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*x = (!_vm->_isHiRes) ? (uint16)_mousePos.x / 2 : (uint16)_mousePos.x;
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*y = (uint16)_mousePos.y;
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_leftClick = false;
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return true;
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}
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} else {
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if (_rightClick) {
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*x = (!_vm->_isHiRes) ? (uint16)_mousePos.x / 2 : (uint16)_mousePos.x;
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*y = (uint16)_mousePos.y;
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_rightClick = false;
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return true;
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}
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}
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return false;
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}
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Button *EventManager::mouseButton() {
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Button *temp = _lastButtonHit;
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_lastButtonHit = nullptr;
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return temp;
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}
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/**
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* Checks whether or not a key has been pressed.
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*/
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bool EventManager::keyPress(uint16 *keyCode) {
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if (haveNextChar()) {
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*keyCode = getNextChar();
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return true;
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}
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return false;
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}
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bool EventManager::haveNextChar() {
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processInput();
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return _nextKeyIn != _nextKeyOut;
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}
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void EventManager::processInput(bool canDelay) {
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Common::Event event;
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if (1) { //!g_IgnoreProcessInput
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int flags = 0;
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while (g_system->getEventManager()->pollEvent(event)) {
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switch (event.type) {
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case Common::EVENT_RBUTTONDOWN:
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flags |= 8;
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mouseHandler(flags, _mousePos);
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break;
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case Common::EVENT_LBUTTONDOWN:
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flags |= 2;
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mouseHandler(flags, _mousePos);
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break;
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case Common::EVENT_MOUSEMOVE: {
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int lastMouseAtEdge = _mouseAtEdge;
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_mouseAtEdge = false;
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_mousePos.x = event.mouse.x;
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if (event.mouse.x <= 0) {
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_mousePos.x = 0;
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_mouseAtEdge = true;
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}
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if (_mousePos.x >= _vm->_graphics->_screenWidth) {
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_mousePos.x = _vm->_graphics->_screenWidth;
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_mouseAtEdge = true;
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}
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_mousePos.y = event.mouse.y;
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if (event.mouse.y <= 0) {
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_mousePos.y = 0;
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_mouseAtEdge = true;
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}
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if (_mousePos.y >= _vm->_graphics->_screenHeight) {
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_mousePos.y = _vm->_graphics->_screenHeight;
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_mouseAtEdge = true;
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}
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if (!lastMouseAtEdge || !_mouseAtEdge)
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mouseHandler(1, _mousePos);
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}
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break;
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case Common::EVENT_KEYDOWN:
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switch (event.kbd.keycode) {
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case Common::KEYCODE_LEFTBRACKET:
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_vm->changeVolume(-1);
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break;
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case Common::KEYCODE_RIGHTBRACKET:
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_vm->changeVolume(1);
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break;
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case Common::KEYCODE_z:
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//saveSettings();
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break;
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default: {
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int n = ((((unsigned int)((_nextKeyIn + 1) >> 31) >> 26) + (byte)_nextKeyIn + 1) & 0x3F)
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- ((unsigned int)((_nextKeyIn + 1) >> 31) >> 26);
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if (n != _nextKeyOut) {
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_keyBuf[_nextKeyIn] = event.kbd.keycode;
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_nextKeyIn = n;
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}
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}
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}
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break;
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case Common::EVENT_QUIT:
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case Common::EVENT_RTL:
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default:
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break;
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}
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g_system->copyRectToScreen(_vm->_graphics->_displayBuffer, _vm->_graphics->_screenWidth, 0, 0, _vm->_graphics->_screenWidth, _vm->_graphics->_screenHeight);
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g_system->updateScreen();
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}
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}
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if (canDelay)
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g_system->delayMillis(10);
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}
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uint16 EventManager::getNextChar() {
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uint16 chr = 0;
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processInput();
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if (_nextKeyIn != _nextKeyOut) {
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chr = _keyBuf[_nextKeyOut];
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_nextKeyOut = ((((unsigned int)((_nextKeyOut + 1) >> 31) >> 26) + (byte)_nextKeyOut + 1) & 0x3F)
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- ((unsigned int)((_nextKeyOut + 1) >> 31) >> 26);
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}
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return chr;
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}
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Common::Point EventManager::updateAndGetMousePos() {
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processInput();
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return _mousePos;
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}
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} // End of namespace Lab
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