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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 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.
*
* $URL$
* $Id$
*
*/
#include "graphics/cursorman.h"
#include "common/util.h"
#include "common/events.h"
#include "sci/sci.h"
#include "sci/engine/state.h"
#include "sci/graphics/palette.h"
#include "sci/graphics/screen.h"
#include "sci/graphics/view.h"
#include "sci/graphics/cursor.h"
namespace Sci {
Cursor::Cursor(ResourceManager *resMan, GfxPalette *palette, GfxScreen *screen)
: _resMan(resMan), _palette(palette), _screen(screen) {
_upscaledHires = _screen->getUpscaledHires();
// center mouse cursor
setPosition(Common::Point(_screen->getDisplayWidth() / 2, _screen->getDisplayHeight() / 2));
setMoveZone(Common::Rect(0, 0, _screen->getDisplayWidth(), _screen->getDisplayHeight()));
_isVisible = true;
}
Cursor::~Cursor() {
purgeCache();
}
void Cursor::show() {
CursorMan.showMouse(true);
_isVisible = true;
}
void Cursor::hide() {
CursorMan.showMouse(false);
_isVisible = false;
}
bool Cursor::isVisible() {
return _isVisible;
}
void Cursor::purgeCache() {
for (CursorCache::iterator iter = _cachedCursors.begin(); iter != _cachedCursors.end(); ++iter) {
delete iter->_value;
iter->_value = 0;
}
_cachedCursors.clear();
}
void Cursor::setShape(GuiResourceId resourceId) {
Resource *resource;
byte *resourceData;
Common::Point hotspot = Common::Point(0, 0);
byte colorMapping[4];
int16 x, y;
byte color;
int16 maskA, maskB;
byte *pOut;
byte *rawBitmap = new byte[SCI_CURSOR_SCI0_HEIGHTWIDTH * SCI_CURSOR_SCI0_HEIGHTWIDTH];
if (resourceId == -1) {
// no resourceId given, so we actually hide the cursor
hide();
delete[] rawBitmap;
return;
}
// Load cursor resource...
resource = _resMan->findResource(ResourceId(kResourceTypeCursor, resourceId), false);
if (!resource)
error("cursor resource %d not found", resourceId);
if (resource->size != SCI_CURSOR_SCI0_RESOURCESIZE)
error("cursor resource %d has invalid size", resourceId);
resourceData = resource->data;
// hotspot is specified for SCI1 cursors
hotspot.x = READ_LE_UINT16(resourceData);
hotspot.y = READ_LE_UINT16(resourceData + 2);
// bit 0 of resourceData[3] is set on <SCI1 games, which means center hotspot
if ((hotspot.x == 0) && (hotspot.y == 256))
hotspot.x = hotspot.y = SCI_CURSOR_SCI0_HEIGHTWIDTH / 2;
// Now find out what colors we are supposed to use
colorMapping[0] = 0; // Black is hardcoded
colorMapping[1] = _screen->getColorWhite(); // White is also hardcoded
colorMapping[2] = SCI_CURSOR_SCI0_TRANSPARENCYCOLOR;
colorMapping[3] = _palette->matchColor(&_palette->_sysPalette, 170, 170, 170); // Grey
// Seek to actual data
resourceData += 4;
pOut = rawBitmap;
for (y = 0; y < SCI_CURSOR_SCI0_HEIGHTWIDTH; y++) {
maskA = READ_LE_UINT16(resourceData + (y << 1));
maskB = READ_LE_UINT16(resourceData + 32 + (y << 1));
for (x = 0; x < SCI_CURSOR_SCI0_HEIGHTWIDTH; x++) {
color = (((maskA << x) & 0x8000) | (((maskB << x) >> 1) & 0x4000)) >> 14;
*pOut++ = colorMapping[color];
}
}
CursorMan.replaceCursor(rawBitmap, SCI_CURSOR_SCI0_HEIGHTWIDTH, SCI_CURSOR_SCI0_HEIGHTWIDTH, hotspot.x, hotspot.y, SCI_CURSOR_SCI0_TRANSPARENCYCOLOR);
show();
delete[] rawBitmap;
}
void Cursor::setView(GuiResourceId viewNum, int loopNum, int celNum, Common::Point *hotspot) {
if (_cachedCursors.size() >= MAX_CACHED_CURSORS)
purgeCache();
if (!_cachedCursors.contains(viewNum))
_cachedCursors[viewNum] = new View(_resMan, _screen, _palette, viewNum);
View *cursorView = _cachedCursors[viewNum];
CelInfo *celInfo = cursorView->getCelInfo(loopNum, celNum);
int16 width = celInfo->width;
int16 height = celInfo->height;
byte clearKey = celInfo->clearKey;
Common::Point *cursorHotspot = hotspot;
if (!cursorHotspot)
// Compute hotspot from xoffset/yoffset
cursorHotspot = new Common::Point((celInfo->width >> 1) - celInfo->displaceX, celInfo->height - celInfo->displaceY - 1);
// Eco Quest 1 uses a 1x1 transparent cursor to hide the cursor from the user. Some scalers don't seem to support this
if (width < 2 || height < 2) {
hide();
delete cursorHotspot;
return;
}
byte *cursorBitmap = cursorView->getBitmap(loopNum, celNum);
if (_upscaledHires) {
// Scale cursor by 2x
width *= 2;
height *= 2;
cursorHotspot->x *= 2;
cursorHotspot->y *= 2;
cursorBitmap = new byte[width * height];
_screen->scale2x(celInfo->rawBitmap, cursorBitmap, celInfo->width, celInfo->height);
}
CursorMan.replaceCursor(cursorBitmap, width, height, cursorHotspot->x, cursorHotspot->y, clearKey);
if (_upscaledHires)
delete[] cursorBitmap;
show();
delete cursorHotspot;
}
void Cursor::setPosition(Common::Point pos) {
if (!_upscaledHires) {
g_system->warpMouse(pos.x, pos.y);
} else {
g_system->warpMouse(pos.x * 2, pos.y * 2);
}
}
Common::Point Cursor::getPosition() {
Common::Point mousePos = g_system->getEventManager()->getMousePos();
if (_upscaledHires) {
mousePos.x /= 2;
mousePos.y /= 2;
}
return mousePos;
}
void Cursor::refreshPosition() {
bool clipped = false;
Common::Point mousePoint = getPosition();
if (mousePoint.x < _moveZone.left) {
mousePoint.x = _moveZone.left;
clipped = true;
} else if (mousePoint.x >= _moveZone.right) {
mousePoint.x = _moveZone.right - 1;
clipped = true;
}
if (mousePoint.y < _moveZone.top) {
mousePoint.y = _moveZone.top;
clipped = true;
} else if (mousePoint.y >= _moveZone.bottom) {
mousePoint.y = _moveZone.bottom - 1;
clipped = true;
}
// FIXME: Do this only when mouse is grabbed?
if (clipped)
setPosition(mousePoint);
}
} // End of namespace Sci
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