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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.
*
*/
#include "common/util.h"
#include "gob/surface.h"
#include "gob/minigames/geisha/meter.h"
namespace Gob {
namespace Geisha {
Meter::Meter(int16 x, int16 y, int16 width, int16 height, uint8 frontColor,
uint8 backColor, int32 maxValue, Direction direction) :
_x(x), _y(y), _width(width), _height(height), _frontColor(frontColor),
_backColor(backColor), _value(0), _maxValue(maxValue), _direction(direction),
_needUpdate(true), _surface(0) {
}
Meter::~Meter() {
delete _surface;
}
int32 Meter::getValue() const {
return _value;
}
void Meter::setValue(int32 value) {
value = CLIP<int32>(value, 0, _maxValue);
if (_value == value)
return;
_value = value;
_needUpdate = true;
}
void Meter::setMaxValue() {
setValue(_maxValue);
}
void Meter::increase(int32 n) {
int32 value = CLIP<int32>(_value + n, 0, _maxValue);
if (_value == value)
return;
_value = value;
_needUpdate = true;
}
void Meter::decrease(int32 n) {
int32 value = CLIP<int32>(_value - n, 0, _maxValue);
if (_value == value)
return;
_value = value;
_needUpdate = true;
}
void Meter::draw(Surface &dest, int16 &left, int16 &top, int16 &right, int16 &bottom) {
if (!_surface) {
_surface = new Surface(_width, _height, dest.getBPP());
_needUpdate = true;
}
update();
left = CLIP<int16>(_x , 0, dest.getWidth () - 1);
top = CLIP<int16>(_y , 0, dest.getHeight() - 1);
right = CLIP<int16>(_x + _width - 1, 0, dest.getWidth () - 1);
bottom = CLIP<int16>(_y + _height - 1, 0, dest.getHeight() - 1);
dest.blit(*_surface, left - _x, top - _y, _width, _height, left, top);
}
void Meter::update() {
if (!_needUpdate)
return;
_needUpdate = false;
_surface->fill(_backColor);
int32 n = (int32)floor((((float) _width) / _maxValue * _value) + 0.5);
if (n <= 0)
return;
if (_direction == kFillToLeft)
_surface->fillRect(_width - n, 0, _width - 1, _height - 1, _frontColor);
else
_surface->fillRect(0 , 0, n - 1, _height - 1, _frontColor);
}
} // End of namespace Geisha
} // End of namespace Gob
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