3b445bc66a
This makes clicking on the track of a GUI::Slider actually move the knob more than 1 value unit (assuming page_step > 1)
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Assertions.h>
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#include <AK/StdLibExtras.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Slider.h>
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#include <LibGfx/Palette.h>
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#include <LibGfx/StylePainter.h>
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namespace GUI {
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AbstractSlider::AbstractSlider(Orientation orientation)
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: m_orientation(orientation)
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{
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REGISTER_INT_PROPERTY("value", value, set_value);
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REGISTER_INT_PROPERTY("min", min, set_min);
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REGISTER_INT_PROPERTY("max", max, set_max);
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REGISTER_INT_PROPERTY("step", step, set_step);
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REGISTER_INT_PROPERTY("page_step", page_step, set_page_step);
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REGISTER_ENUM_PROPERTY("orientation", this->orientation, set_orientation, Orientation,
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{ Orientation::Horizontal, "Horizontal" },
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{ Orientation::Vertical, "Vertical" });
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}
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AbstractSlider::~AbstractSlider()
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{
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}
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void AbstractSlider::set_orientation(Orientation value)
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{
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if (m_orientation == value)
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return;
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m_orientation = value;
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update();
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}
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void AbstractSlider::set_page_step(int page_step)
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{
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m_page_step = AK::max(0, page_step);
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}
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void AbstractSlider::set_range(int min, int max)
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{
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ASSERT(min <= max);
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if (m_min == min && m_max == max)
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return;
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m_min = min;
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m_max = max;
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m_value = clamp(m_value, m_min, m_max);
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update();
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}
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void AbstractSlider::set_value(int value)
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{
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value = clamp(value, m_min, m_max);
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if (m_value == value)
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return;
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m_value = value;
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update();
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if (on_value_changed)
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on_value_changed(m_value);
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}
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}
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