142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/widgets/side_bar_button.h"
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#include "ui/effects/ripple_animation.h"
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#include <QtGui/QtEvents>
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namespace Ui {
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namespace {
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constexpr auto kMaxLabelLines = 3;
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} // namespace
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SideBarButton::SideBarButton(
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not_null<QWidget*> parent,
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const QString &title,
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const style::SideBarButton &st)
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: RippleButton(parent, st.ripple)
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, _st(st)
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, _text(_st.minTextWidth) {
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_text.setText(_st.style, title);
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setAttribute(Qt::WA_OpaquePaintEvent);
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}
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void SideBarButton::setActive(bool active) {
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if (_active == active) {
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return;
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}
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_active = active;
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update();
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}
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void SideBarButton::setBadge(const QString &badge, bool muted) {
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if (_badge.toString() == badge && _badgeMuted == muted) {
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return;
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}
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_badge.setText(_st.badgeStyle, badge);
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_badgeMuted = muted;
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const auto width = badge.isEmpty()
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? 0
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: std::max(_st.badgeHeight, _badge.maxWidth() + 2 * _st.badgeSkip);
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if (_iconCacheBadgeWidth != width) {
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_iconCacheBadgeWidth = width;
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_iconCache = _iconCacheActive = QImage();
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}
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update();
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}
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int SideBarButton::resizeGetHeight(int newWidth) {
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auto result = _st.minHeight;
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const auto text = _text.countHeight(newWidth - _st.textSkip * 2);
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const auto add = text - _st.style.font->height;
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return result + std::max(add, 0);
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}
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void SideBarButton::paintEvent(QPaintEvent *e) {
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auto p = Painter(this);
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const auto clip = e->rect();
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p.fillRect(clip, _active ? _st.textBgActive : _st.textBg);
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RippleButton::paintRipple(p, 0, 0);
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const auto &icon = _active ? _st.iconActive : _st.icon;
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const auto x = (_st.iconPosition.x() < 0)
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? (width() - icon.width()) / 2
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: _st.iconPosition.x();
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const auto y = (_st.iconPosition.y() < 0)
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? (height() - icon.height()) / 2
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: _st.iconPosition.y();
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if (_iconCacheBadgeWidth) {
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validateIconCache();
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p.drawImage(x, y, _active ? _iconCacheActive : _iconCache);
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} else {
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icon.paint(p, x, y, width());
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}
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p.setPen(_active ? _st.textFgActive : _st.textFg);
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_text.drawElided(
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p,
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_st.textSkip,
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_st.textTop,
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(width() - 2 * _st.textSkip),
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kMaxLabelLines,
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style::al_top);
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if (_iconCacheBadgeWidth) {
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const auto x = width() / 2 + _st.badgePosition.x();
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const auto y = _st.badgePosition.y();
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auto hq = PainterHighQualityEnabler(p);
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p.setPen(Qt::NoPen);
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p.setBrush((_badgeMuted && !_active)
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? _st.badgeBgMuted
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: _st.badgeBg);
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const auto r = _st.badgeHeight / 2;
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p.drawRoundedRect(x, y, _iconCacheBadgeWidth, _st.badgeHeight, r, r);
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p.setPen(_st.badgeFg);
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_badge.draw(
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p,
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x + (_iconCacheBadgeWidth - _badge.maxWidth()) / 2,
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y + (_st.badgeHeight - _st.badgeStyle.font->height) / 2,
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width());
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}
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}
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void SideBarButton::validateIconCache() {
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Expects(_st.iconPosition.x() < 0);
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Expects(_st.iconPosition.y() >= 0);
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if (!(_active ? _iconCacheActive : _iconCache).isNull()) {
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return;
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}
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const auto &icon = _active ? _st.iconActive : _st.icon;
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auto image = QImage(
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icon.size() * style::DevicePixelRatio(),
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QImage::Format_ARGB32_Premultiplied);
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image.fill(Qt::transparent);
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{
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auto p = QPainter(&image);
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icon.paint(p, 0, 0, icon.width());
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p.setCompositionMode(QPainter::CompositionMode_Source);
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p.setBrush(Qt::transparent);
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auto pen = QPen(Qt::transparent);
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pen.setWidth(2 * _st.badgeStroke);
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p.setPen(pen);
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auto hq = PainterHighQualityEnabler(p);
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const auto x = (icon.width() / 2) + _st.badgePosition.x();
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const auto y = _st.badgePosition.y() - _st.iconPosition.y();
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const auto r = _st.badgeHeight / 2.;
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p.drawRoundedRect(x, y, _iconCacheBadgeWidth, _st.badgeHeight, r, r);
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}
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(_active ? _iconCacheActive : _iconCache) = std::move(image);
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}
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} // namespace Ui
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