init

Telegram/SourceFiles/info/profile/info_profile_music_button.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "info/profile/info_profile_music_button.h"
+
+#include "ui/effects/animation_value.h"
+#include "ui/text/text_utilities.h"
+#include "ui/painter.h"
+#include "ui/rect.h"
+#include "ui/ui_utility.h"
+#include "styles/style_chat.h"
+#include "styles/style_info.h"
+
+namespace Info::Profile {
+
+MusicButton::MusicButton(
+	QWidget *parent,
+	MusicButtonData data,
+	Fn<void()> handler)
+: RippleButton(parent, st::infoMusicButtonRipple)
+, _noteSymbol(u"\u266B"_q + QChar(' '))
+, _noteWidth(st::normalFont->width(_noteSymbol)) {
+	updateData(std::move(data));
+	setClickedCallback(std::move(handler));
+}
+
+MusicButton::~MusicButton() = default;
+
+void MusicButton::updateData(MusicButtonData data) {
+	const auto result = data.name.textWithEntities();
+	const auto performerLength = result.entities.empty()
+		? 0
+		: int(result.entities.front().length());
+	_performer.setText(
+		st::semiboldTextStyle,
+		result.text.mid(0, performerLength));
+	_title.setText(
+		st::defaultTextStyle,
+		result.text.mid(performerLength, result.text.size()));
+	update();
+}
+
+void MusicButton::setOverrideBg(std::optional<QColor> color) {
+	_overrideBg = color;
+	update();
+}
+
+void MusicButton::paintEvent(QPaintEvent *e) {
+	auto p = QPainter(this);
+
+	if (_overrideBg) {
+		p.fillRect(e->rect(), Ui::BlendColors(
+			*_overrideBg,
+			Qt::black,
+			st::infoProfileTopBarActionButtonBgOpacity));
+	} else {
+		p.fillRect(e->rect(), st::shadowFg);
+	}
+	paintRipple(p, QPoint());
+
+	const auto &icon = st::topicButtonArrow;
+	const auto iconWidth = icon.width();
+	const auto iconHeight = icon.height();
+
+	const auto padding = st::infoMusicButtonPadding;
+	const auto skip = st::normalFont->spacew;
+
+	const auto titleWidth = _title.maxWidth();
+	const auto performerWidth = _performer.maxWidth();
+	const auto totalNeeded = titleWidth + performerWidth + skip;
+	const auto availableWidth = width()
+		- rect::m::sum::h(padding)
+		- iconWidth
+		- skip
+		- _noteWidth;
+
+	auto actualTitleWidth = 0;
+	auto actualPerformerWidth = 0;
+	if (totalNeeded <= availableWidth) {
+		actualTitleWidth = titleWidth;
+		actualPerformerWidth = performerWidth;
+	} else {
+		const auto ratio = float64(titleWidth) / totalNeeded;
+		actualPerformerWidth = int(availableWidth * (1.0 - ratio));
+		actualTitleWidth = availableWidth - actualPerformerWidth;
+	}
+
+	const auto totalContentWidth = _noteWidth
+		+ actualPerformerWidth
+		+ skip
+		+ actualTitleWidth
+		+ skip
+		+ iconWidth;
+	const auto centerX = width() / 2;
+	const auto contentStartX = centerX - totalContentWidth / 2;
+	const auto textTop = (height() - st::normalFont->height) / 2;
+
+	p.setPen(_overrideBg ? st::groupCallMembersFg : st::windowBoldFg);
+	p.setFont(st::normalFont);
+	p.drawText(contentStartX, textTop + st::normalFont->ascent, _noteSymbol);
+
+	_performer.draw(p, {
+		.position = { contentStartX + _noteWidth, textTop },
+		.availableWidth = actualPerformerWidth,
+		.now = crl::now(),
+		.elisionLines = 1,
+		.elisionMiddle = true,
+	});
+
+	p.setPen(_overrideBg ? st::groupCallVideoSubTextFg : st::windowSubTextFg);
+	_title.draw(p, {
+		.position = QPoint(
+			contentStartX + _noteWidth + actualPerformerWidth + skip,
+			textTop),
+		.availableWidth = actualTitleWidth,
+		.now = crl::now(),
+		.elisionLines = 1,
+		.elisionMiddle = true,
+	});
+
+	const auto iconLeft = contentStartX
+		+ _noteWidth
+		+ actualPerformerWidth
+		+ actualTitleWidth
+		+ skip
+		+ skip;
+	const auto iconTop = (height() - iconHeight) / 2;
+	icon.paint(p, iconLeft, iconTop, iconWidth, p.pen().color());
+}
+
+int MusicButton::resizeGetHeight(int newWidth) {
+	const auto padding = st::infoMusicButtonPadding;
+	const auto &font = st::defaultTextStyle.font;
+
+	return padding.top() + font->height + padding.bottom();
+}
+
+} // namespace Info::Profile