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fe3b846ac8
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Assertions.h>
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#include <AK/StringBuilder.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Progressbar.h>
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#include <LibGfx/Palette.h>
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REGISTER_WIDGET(GUI, Progressbar)
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REGISTER_WIDGET(GUI, VerticalProgressbar)
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REGISTER_WIDGET(GUI, HorizontalProgressbar)
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namespace GUI {
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Progressbar::Progressbar(Orientation orientation)
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: m_orientation(orientation)
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{
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REGISTER_STRING_PROPERTY("text", text, set_text);
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REGISTER_ENUM_PROPERTY("format", format, set_format, Format,
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{ Format::NoText, "NoText" },
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{ Format::Percentage, "Percentage" },
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{ Format::ValueSlashMax, "ValueSlashMax" });
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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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}
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void Progressbar::set_value(int value)
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{
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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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}
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void Progressbar::set_range(int min, int max)
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{
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VERIFY(min <= max);
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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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}
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void Progressbar::paint_event(PaintEvent& event)
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{
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Frame::paint_event(event);
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Painter painter(*this);
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auto rect = frame_inner_rect();
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painter.add_clip_rect(rect);
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painter.add_clip_rect(event.rect());
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String progress_text;
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if (m_format != Format::NoText) {
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// Then we draw the progress text over the gradient.
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// We draw it twice, once offset (1, 1) for a drop shadow look.
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StringBuilder builder;
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builder.append(m_text);
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if (m_format == Format::Percentage) {
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float range_size = m_max - m_min;
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float progress = (m_value - m_min) / range_size;
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builder.appendff("{}%", (int)(progress * 100));
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} else if (m_format == Format::ValueSlashMax) {
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builder.appendff("{}/{}", m_value, m_max);
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}
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progress_text = builder.to_string();
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}
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Gfx::StylePainter::paint_progressbar(painter, rect, palette(), m_min, m_max, m_value, progress_text, m_orientation);
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}
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void Progressbar::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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}
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