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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
* aint32 with this program; if not, write to the Free Software
*
*
* Based on the original sources
* Faery Tale II -- The Halls of the Dead
* (c) 1993-1996 The Wyrmkeep Entertainment Co.
*/
#include "graphics/cursorman.h"
#include "saga2/saga2.h"
#include "saga2/gpointer.h"
namespace Saga2 {
gMousePointer::gMousePointer(gDisplayPort &port) {
_hideCount = 0; // pointer not hidden
// initialize coords
_offsetPosition.x = _offsetPosition.y = 0;
_currentPosition.x = _currentPosition.y = 0;
// a backsave extent of 0 means not saved
_saveExtent.width = _saveExtent.height = 0;
_shown = 0;
// set up the backsave port
_savePort.setMap(&_saveMap);
_savePort.setMode(kDrawModeReplace);
_videoPort = &port;
// no imagery at this time.
_pointerImage = nullptr;
}
gMousePointer::~gMousePointer() {
if (_saveMap._data)
free(_saveMap._data);
}
// Init & status check
bool gMousePointer::init(Point16 pointerLimits) {
return true;
}
// Private routine to draw the mouse pointer image
void gMousePointer::draw() {
if (_hideCount < 1) {
CursorMan.showMouse(true);
_shown = 1;
} else
_shown = 0;
}
// Private routine to restore the mouse pointer image
void gMousePointer::restore() {
if (_shown) {
// blit from the saved map to the current position.
CursorMan.showMouse(false);
// A height of zero means backsave is invalid
_shown = 0;
}
}
// Makes the mouse pointer visible
void gMousePointer::show() {
assert(_hideCount > 0);
if (--_hideCount == 0) {
draw();
}
}
// Makes the mouse pointer invisible
void gMousePointer::hide() {
if (_hideCount++ == 0) {
restore();
}
}
// Makes the mouse pointer visible
void gMousePointer::show(gPort &port, Rect16 r) {
Point16 org = port.getOrigin();
r.x += org.x;
r.y += org.y;
if (_saveExtent.overlap(r)) {
if (--_hideCount == 0) {
draw();
}
}
}
// Makes the mouse pointer visible
int gMousePointer::manditoryShow() {
int rv = 0;
while (_hideCount > 0) {
show();
rv++;
}
while (_hideCount < 0) {
hide();
rv--;
}
if (!_shown)
draw();
return rv;
}
// Makes the mouse pointer invisible
void gMousePointer::hide(gPort &port, Rect16 r) {
Point16 org = port.getOrigin();
r.x += org.x;
r.y += org.y;
if (_saveExtent.overlap(r)) {
if (_hideCount++ == 0) {
restore();
CursorMan.showMouse(false);
}
}
}
// Moves the mouse pointer to a new position
void gMousePointer::move(Point16 pos) {
Point16 offsetPos = pos + _offsetPosition;
if (offsetPos != _currentPosition) {
restore();
_currentPosition = offsetPos;
draw();
}
}
// Sets the mouse pointer imagery
void gMousePointer::setImage(
gPixelMap &img,
int x,
int y) {
Point16 pos = _currentPosition - _offsetPosition;
if (_pointerImage != &img
|| x != _offsetPosition.x
|| y != _offsetPosition.y
|| img._size != _saveMap._size) {
_offsetPosition.x = x;
_offsetPosition.y = y;
hide();
if (_saveMap._data)
free(_saveMap._data);
_saveMap._size = img._size;
_saveMap._data = (uint8 *)malloc(img.bytes());
_pointerImage = &img;
_currentPosition = pos + _offsetPosition;
CursorMan.replaceCursor(img._data, img._size.x, img._size.y, -x, -y, 0);
CursorMan.showMouse(true);
show();
}
}
} // end of namespace Saga2
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