mirror of
https://github.com/transmission/transmission.git
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105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
// This file Copyright © Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <algorithm>
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#include <QPainter>
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#include <QStaticText>
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#include <QStyleOptionProgressBar>
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#include "StyleHelper.h"
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QIcon::Mode StyleHelper::getIconMode(QStyle::State const& state)
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{
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if (!state.testFlag(QStyle::State_Enabled))
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{
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return QIcon::Disabled;
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}
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if (state.testFlag(QStyle::State_Selected))
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{
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return QIcon::Selected;
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}
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return QIcon::Normal;
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}
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void StyleHelper::drawProgressBar(QPainter& painter, QStyleOptionProgressBar const& option)
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{
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painter.save();
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auto rect = option.rect.adjusted(0, 0, -1, -1);
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painter.setPen(option.palette.color(QPalette::Base));
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painter.drawRect(rect);
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rect.adjust(1, 1, 0, 0);
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auto const max_pos = std::max(option.maximum - option.minimum, 1);
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auto const pos = std::min(std::max(option.progress - option.minimum, 0), max_pos);
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auto const bar_width = pos * rect.width() / max_pos;
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auto const is_inverted = option.invertedAppearance != (option.direction == Qt::RightToLeft);
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if (pos < max_pos)
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{
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auto back_rect = rect;
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if (pos > 0)
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{
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back_rect.setWidth(back_rect.width() - bar_width);
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if (!is_inverted)
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{
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back_rect.moveRight(rect.right());
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}
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}
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painter.fillRect(back_rect, option.palette.brush(QPalette::Window));
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}
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if (pos > 0)
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{
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auto bar_rect = rect;
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if (pos < max_pos)
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{
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bar_rect.setWidth(bar_width);
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if (is_inverted)
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{
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bar_rect.moveRight(rect.right());
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}
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}
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painter.fillRect(bar_rect, option.palette.brush(QPalette::Highlight));
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}
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if (option.textVisible)
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{
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rect.adjust(1, 0, -1, 0);
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auto text = QStaticText(option.text);
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text.setTextFormat(Qt::PlainText);
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text.prepare({}, painter.font());
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auto const text_pos = QStyle::alignedRect(option.direction, option.textAlignment, text.size().toSize(), rect).topLeft();
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auto const text_color = option.palette.color(QPalette::WindowText);
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auto const shadow_color = text_color.value() <= 128 ? QColor(255, 255, 255, 160) : QColor(0, 0, 0, 160);
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painter.setPen(shadow_color);
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for (int i = -1; i <= 1; ++i)
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{
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for (int j = -1; j <= 1; ++j)
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{
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if (i != 0 && j != 0)
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{
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painter.drawStaticText(text_pos.x() + i, text_pos.y() + j, text);
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}
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}
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}
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painter.setPen(text_color);
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painter.drawStaticText(text_pos, text);
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}
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painter.restore();
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}
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