scummvm/engines/sword25/gfx/panel.cpp
2011-05-25 11:17:11 -04:00

107 lines
2.8 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 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.
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "sword25/gfx/panel.h"
#include "sword25/kernel/inputpersistenceblock.h"
#include "sword25/kernel/outputpersistenceblock.h"
#include "sword25/gfx/graphicengine.h"
#include "sword25/gfx/image/image.h"
namespace Sword25 {
Panel::Panel(RenderObjectPtr<RenderObject> parentPtr, int width, int height, uint color) :
RenderObject(parentPtr, RenderObject::TYPE_PANEL),
_color(color) {
_initSuccess = false;
_width = width;
_height = height;
if (_width < 0) {
error("Tried to initialize a panel with an invalid width (%d).", _width);
return;
}
if (_height < 0) {
error("Tried to initialize a panel with an invalid height (%d).", _height);
return;
}
_initSuccess = true;
}
Panel::Panel(InputPersistenceBlock &reader, RenderObjectPtr<RenderObject> parentPtr, uint handle) :
RenderObject(parentPtr, RenderObject::TYPE_PANEL, handle) {
_initSuccess = unpersist(reader);
}
Panel::~Panel() {
}
bool Panel::doRender() {
// Falls der Alphawert 0 ist, ist das Panel komplett durchsichtig und es muss nichts gezeichnet werden.
if (_color >> 24 == 0)
return true;
GraphicEngine *gfxPtr = Kernel::getInstance()->getGfx();
assert(gfxPtr);
return gfxPtr->fill(&_bbox, _color);
}
bool Panel::persist(OutputPersistenceBlock &writer) {
bool result = true;
result &= RenderObject::persist(writer);
writer.write(_color);
result &= RenderObject::persistChildren(writer);
return result;
}
bool Panel::unpersist(InputPersistenceBlock &reader) {
bool result = true;
result &= RenderObject::unpersist(reader);
uint color;
reader.read(color);
setColor(color);
result &= RenderObject::unpersistChildren(reader);
return reader.isGood() && result;
}
} // End of namespace Sword25