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Diffstat (limited to 'src/gui/base/widgets/slider.cpp')
| -rw-r--r-- | src/gui/base/widgets/slider.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/gui/base/widgets/slider.cpp b/src/gui/base/widgets/slider.cpp new file mode 100644 index 000000000..a1a106303 --- /dev/null +++ b/src/gui/base/widgets/slider.cpp @@ -0,0 +1,231 @@ +/* + * The ManaPlus Client + * Copyright (C) 2011-2014 The ManaPlus Developers + * + * This file is part of The ManaPlus Client. + * + * 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 + * 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, see <http://www.gnu.org/licenses/>. + */ + +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naessén a.k.a jansem/yakslem + * + * Visit: http://guichan.sourceforge.net + * + * License: (BSD) + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name of Guichan nor the names of its contributors may + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * For comments regarding functions please see the header file. + */ + +#include "gui/base/widgets/slider.hpp" + +#include "gui/base/graphics.hpp" +#include "gui/base/key.hpp" +#include "gui/base/mouseinput.hpp" + +#include "debug.h" + +namespace gcn +{ + Slider::Slider(const double scaleEnd) : + gcn::Widget(), + gcn::MouseListener(), + gcn::KeyListener(), + mDragged(false), + mValue(0), + mStepLength(scaleEnd / 10), + mMarkerLength(10), + mScaleStart(0), + mScaleEnd(scaleEnd), + mOrientation(HORIZONTAL) + { + setFocusable(true); + setFrameSize(1); + + addMouseListener(this); + addKeyListener(this); + } + + Slider::Slider(const double scaleStart, const double scaleEnd) : + gcn::Widget(), + gcn::MouseListener(), + gcn::KeyListener(), + mDragged(false), + mValue(scaleStart), + mStepLength((scaleEnd - scaleStart) / 10), + mMarkerLength(10), + mScaleStart(scaleStart), + mScaleEnd(scaleEnd), + mOrientation(HORIZONTAL) + { + setFocusable(true); + setFrameSize(1); + + addMouseListener(this); + addKeyListener(this); + } + + void Slider::setScale(double scaleStart, double scaleEnd) + { + mScaleStart = scaleStart; + mScaleEnd = scaleEnd; + } + + double Slider::getScaleStart() const + { + return mScaleStart; + } + + void Slider::setScaleStart(double scaleStart) + { + mScaleStart = scaleStart; + } + + double Slider::getScaleEnd() const + { + return mScaleEnd; + } + + void Slider::setScaleEnd(double scaleEnd) + { + mScaleEnd = scaleEnd; + } + + void Slider::setValue(double value) + { + if (value > getScaleEnd()) + { + mValue = getScaleEnd(); + return; + } + + if (value < getScaleStart()) + { + mValue = getScaleStart(); + return; + } + + mValue = value; + } + + double Slider::getValue() const + { + return mValue; + } + + int Slider::getMarkerLength() const + { + return mMarkerLength; + } + + void Slider::setMarkerLength(int length) + { + mMarkerLength = length; + } + + void Slider::setOrientation(Slider::Orientation orientation) + { + mOrientation = orientation; + } + + Slider::Orientation Slider::getOrientation() const + { + return mOrientation; + } + + double Slider::markerPositionToValue(int v) const + { + int w; + if (getOrientation() == HORIZONTAL) + w = getWidth(); + else + w = getHeight(); + + const double pos = v / (static_cast<double>(w) - getMarkerLength()); + return (1.0 - pos) * getScaleStart() + pos * getScaleEnd(); + } + + int Slider::valueToMarkerPosition(double value) const + { + int v; + if (getOrientation() == HORIZONTAL) + v = getWidth(); + else + v = getHeight(); + + const int w = static_cast<int>((v - getMarkerLength()) + * (value - getScaleStart()) + / (getScaleEnd() - getScaleStart())); + + if (w < 0) + return 0; + + if (w > v - getMarkerLength()) + return v - getMarkerLength(); + + return w; + } + + void Slider::setStepLength(double length) + { + mStepLength = length; + } + + double Slider::getStepLength() const + { + return mStepLength; + } + + int Slider::getMarkerPosition() const + { + return valueToMarkerPosition(getValue()); + } +} // namespace gcn |