668 lines
19 KiB
C++
668 lines
19 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/chat/message_bar.h"
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#include "ui/text/text_options.h"
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#include "ui/image/image_prepare.h"
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#include "ui/painter.h"
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#include "ui/power_saving.h"
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#include "styles/style_chat.h"
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#include "styles/style_chat_helpers.h"
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#include "styles/palette.h"
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namespace Ui {
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namespace {
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[[nodiscard]] int SameFirstPartLength(const QString &a, const QString &b) {
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const auto [i, j] = ranges::mismatch(a, b);
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return (i - a.begin());
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}
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[[nodiscard]] bool MuchDifferent(
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int same,
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const QString &a,
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const QString &b) {
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return (same * 2 < a.size()) || (same * 2 < b.size());
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}
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[[nodiscard]] bool MuchDifferent(const QString &a, const QString &b) {
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return MuchDifferent(SameFirstPartLength(a, b), a, b);
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}
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[[nodiscard]] bool ComplexTitleAnimation(
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int same,
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const QString &a,
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const QString &b) {
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return !MuchDifferent(same, a, b)
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&& (same != a.size() || same != b.size());
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}
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} // namespace
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MessageBar::MessageBar(
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not_null<QWidget*> parent,
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const style::MessageBar &st,
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Fn<bool()> customEmojiPaused)
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: _st(st)
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, _widget(parent)
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, _customEmojiPaused(std::move(customEmojiPaused)) {
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setup();
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style::PaletteChanged(
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) | rpl::start_with_next([=] {
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_topBarGradient = _bottomBarGradient = QPixmap();
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}, _widget.lifetime());
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}
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void MessageBar::customEmojiRepaint() {
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if (_customEmojiRepaintScheduled) {
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return;
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}
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_customEmojiRepaintScheduled = true;
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_widget.update();
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}
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void MessageBar::setup() {
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_widget.resize(0, st::historyReplyHeight);
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_widget.paintRequest(
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) | rpl::start_with_next([=](QRect rect) {
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auto p = Painter(&_widget);
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p.setInactive(_customEmojiPaused());
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_customEmojiRepaintScheduled = false;
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paint(p);
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}, _widget.lifetime());
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}
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void MessageBar::set(MessageBarContent &&content) {
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_contentLifetime.destroy();
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tweenTo(std::move(content));
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}
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void MessageBar::set(rpl::producer<MessageBarContent> content) {
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_contentLifetime.destroy();
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std::move(
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content
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) | rpl::start_with_next([=](MessageBarContent &&content) {
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tweenTo(std::move(content));
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}, _contentLifetime);
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}
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MessageBar::BodyAnimation MessageBar::DetectBodyAnimationType(
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Animation *currentAnimation,
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const MessageBarContent ¤tContent,
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const MessageBarContent &nextContent) {
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const auto now = currentAnimation
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? currentAnimation->bodyAnimation
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: BodyAnimation::None;
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const auto somethingChanged = (currentContent.text != nextContent.text)
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|| (currentContent.title != nextContent.title)
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|| (currentContent.index != nextContent.index)
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|| (currentContent.count != nextContent.count);
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return (now == BodyAnimation::Full
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|| MuchDifferent(currentContent.title, nextContent.title)
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|| (currentContent.title.isEmpty() && somethingChanged))
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? BodyAnimation::Full
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: (now == BodyAnimation::Text || somethingChanged)
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? BodyAnimation::Text
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: BodyAnimation::None;
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}
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void MessageBar::tweenTo(MessageBarContent &&content) {
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Expects(content.count > 0);
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Expects(content.index >= 0 && content.index < content.count);
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_widget.update();
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if (!_st.duration || anim::Disabled() || _widget.size().isEmpty()) {
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updateFromContent(std::move(content));
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return;
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}
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const auto hasImageChanged = (_content.preview.isNull()
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!= content.preview.isNull());
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const auto bodyChanged = (_content.index != content.index
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|| _content.count != content.count
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|| _content.title != content.title
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|| _content.text != content.text
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|| _content.preview.constBits() != content.preview.constBits());
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const auto barCountChanged = (_content.count != content.count);
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const auto barFrom = _content.index;
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const auto barTo = content.index;
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auto animation = Animation();
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animation.bodyAnimation = DetectBodyAnimationType(
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_animation.get(),
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_content,
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content);
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animation.movingTo = (content.index > _content.index)
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? RectPart::Top
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: (content.index < _content.index)
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? RectPart::Bottom
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: RectPart::None;
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animation.imageFrom = grabImagePart();
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animation.spoilerFrom = std::move(_spoiler);
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animation.bodyOrTextFrom = grabBodyOrTextPart(animation.bodyAnimation);
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const auto sameLength = SameFirstPartLength(
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_content.title,
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content.title);
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if (animation.bodyAnimation == BodyAnimation::Text
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&& ComplexTitleAnimation(sameLength, _content.title, content.title)) {
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animation.titleSame = grabTitleBase(sameLength);
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animation.titleFrom = grabTitlePart(sameLength);
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}
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auto was = std::move(_animation);
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updateFromContent(std::move(content));
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animation.imageTo = grabImagePart();
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animation.bodyOrTextTo = grabBodyOrTextPart(animation.bodyAnimation);
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if (!animation.titleSame.isNull()) {
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animation.titleTo = grabTitlePart(sameLength);
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}
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if (was) {
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_animation = std::move(was);
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std::swap(*_animation, animation);
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_animation->imageShown = std::move(animation.imageShown);
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_animation->barScroll = std::move(animation.barScroll);
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_animation->barTop = std::move(animation.barTop);
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} else {
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_animation = std::make_unique<Animation>(std::move(animation));
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}
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if (hasImageChanged) {
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_animation->imageShown.start(
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[=] { _widget.update(); },
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_image.isNull() ? 1. : 0.,
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_image.isNull() ? 0. : 1.,
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_st.duration);
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}
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if (bodyChanged) {
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_animation->bodyMoved.start(
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[=] { _widget.update(); },
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0.,
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1.,
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_st.duration);
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}
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if (barCountChanged) {
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_animation->barScroll.stop();
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_animation->barTop.stop();
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} else if (barFrom != barTo) {
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const auto wasState = countBarState(barFrom);
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const auto nowState = countBarState(barTo);
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_animation->barScroll.start(
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[=] { _widget.update(); },
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wasState.scroll,
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nowState.scroll,
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_st.duration);
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_animation->barTop.start(
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[] {},
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wasState.offset,
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nowState.offset,
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_st.duration);
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}
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}
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void MessageBar::updateFromContent(MessageBarContent &&content) {
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_content = std::move(content);
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_title.setText(_st.title, _content.title);
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_text.setMarkedText(
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_st.text,
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_content.text,
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Ui::DialogTextOptions(),
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_content.context);
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_image = prepareImage(_content.preview);
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if (!_content.spoilerRepaint) {
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_spoiler = nullptr;
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} else if (!_spoiler) {
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_spoiler = std::make_unique<SpoilerAnimation>(
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_content.spoilerRepaint);
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}
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}
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QRect MessageBar::imageRect() const {
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const auto left = st::msgReplyBarSkip + st::msgReplyBarSkip;
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const auto top = st::msgReplyPadding.top();
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const auto size = st::msgReplyBarSize.height();
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return QRect(left, top, size, size);
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}
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QRect MessageBar::titleRangeRect(int from, int till) const {
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auto result = bodyRect();
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result.setHeight(st::msgServiceNameFont->height);
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const auto left = from
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? st::msgServiceNameFont->width(_content.title.mid(0, from))
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: 0;
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const auto right = (till <= _content.title.size())
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? st::msgServiceNameFont->width(_content.title.mid(0, till))
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: result.width();
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result.setLeft(result.left() + left);
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result.setWidth(right - left);
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return result;
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}
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QRect MessageBar::bodyRect(bool withImage) const {
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const auto innerLeft = st::msgReplyBarSkip + st::msgReplyBarSkip;
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const auto imageSkip = st::msgReplyBarSize.height()
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+ st::msgReplyBarSkip
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- st::msgReplyBarSize.width()
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- st::msgReplyBarPos.x();
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const auto left = innerLeft + (withImage ? imageSkip : 0);
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const auto top = st::msgReplyPadding.top();
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const auto width = _widget.width() - left - st::msgReplyPadding.right();
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const auto height = st::msgReplyBarSize.height();
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return QRect(left, top, width, height) - _content.margins;
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}
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QRect MessageBar::bodyRect() const {
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return bodyRect(!_image.isNull());
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}
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QRect MessageBar::textRect() const {
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auto result = bodyRect();
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result.setTop(result.top() + st::msgServiceNameFont->height);
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return result;
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}
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auto MessageBar::makeGrabGuard() {
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auto imageShown = _animation
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? std::move(_animation->imageShown)
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: Ui::Animations::Simple();
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auto spoiler = std::move(_spoiler);
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auto fromSpoiler = _animation
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? std::move(_animation->spoilerFrom)
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: nullptr;
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return gsl::finally([
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&,
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shown = std::move(imageShown),
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spoiler = std::move(spoiler),
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fromSpoiler = std::move(fromSpoiler)
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]() mutable {
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if (_animation) {
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_animation->imageShown = std::move(shown);
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_animation->spoilerFrom = std::move(fromSpoiler);
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}
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_spoiler = std::move(spoiler);
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});
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}
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QPixmap MessageBar::grabBodyOrTextPart(BodyAnimation type) {
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return (type == BodyAnimation::Full)
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? grabBodyPart()
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: (type == BodyAnimation::Text)
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? grabTextPart()
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: QPixmap();
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}
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QPixmap MessageBar::grabTitleBase(int till) {
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return grabTitleRange(0, till);
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}
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QPixmap MessageBar::grabTitlePart(int from) {
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Expects(from <= _content.title.size());
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return grabTitleRange(from, _content.title.size());
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}
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QPixmap MessageBar::grabTitleRange(int from, int till) {
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const auto guard = makeGrabGuard();
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return GrabWidget(widget(), titleRangeRect(from, till));
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}
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QPixmap MessageBar::grabBodyPart() {
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const auto guard = makeGrabGuard();
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return GrabWidget(widget(), bodyRect());
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}
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QPixmap MessageBar::grabTextPart() {
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const auto guard = makeGrabGuard();
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return GrabWidget(widget(), textRect());
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}
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QPixmap MessageBar::grabImagePart() {
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if (!_animation) {
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return _image;
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}
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const auto guard = makeGrabGuard();
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return (_animation->bodyMoved.animating()
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&& !_animation->imageFrom.isNull()
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&& !_animation->imageTo.isNull())
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? GrabWidget(widget(), imageRect())
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: _animation->imageFrom;
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}
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void MessageBar::finishAnimating() {
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if (_animation) {
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_animation = nullptr;
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_widget.update();
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}
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}
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QPixmap MessageBar::prepareImage(const QImage &preview) {
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return QPixmap::fromImage(preview, Qt::ColorOnly);
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}
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void MessageBar::paint(Painter &p) {
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const auto progress = _animation ? _animation->bodyMoved.value(1.) : 1.;
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const auto imageFinal = _image.isNull() ? 0. : 1.;
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const auto imageShown = _animation
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? _animation->imageShown.value(imageFinal)
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: imageFinal;
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if (progress == 1. && imageShown == imageFinal && _animation) {
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_animation = nullptr;
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}
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const auto body = [&] {
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if (!_animation || !_animation->imageShown.animating()) {
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return bodyRect();
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}
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const auto noImage = bodyRect(false);
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const auto withImage = bodyRect(true);
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return QRect(
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anim::interpolate(noImage.x(), withImage.x(), imageShown),
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noImage.y(),
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anim::interpolate(noImage.width(), withImage.width(), imageShown),
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noImage.height());
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}();
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const auto text = textRect();
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const auto image = imageRect();
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const auto width = _widget.width();
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const auto noShift = !_animation
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|| (_animation->movingTo == RectPart::None);
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const auto shiftFull = st::msgReplyBarSkip;
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const auto shiftTo = noShift
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? 0
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: (_animation->movingTo == RectPart::Top)
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? anim::interpolate(shiftFull, 0, progress)
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: anim::interpolate(-shiftFull, 0, progress);
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const auto shiftFrom = noShift
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? 0
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: (_animation->movingTo == RectPart::Top)
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? (shiftTo - shiftFull)
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: (shiftTo + shiftFull);
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const auto now = crl::now();
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const auto paused = p.inactive();
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const auto pausedSpoiler = paused || On(PowerSaving::kChatSpoiler);
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paintLeftBar(p);
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if (!_animation) {
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if (!_image.isNull()) {
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paintImageWithSpoiler(
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p,
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image,
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_image,
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_spoiler.get(),
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now,
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pausedSpoiler);
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}
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} else if (!_animation->imageTo.isNull()
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|| (!_animation->imageFrom.isNull()
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&& _animation->imageShown.animating())) {
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const auto rect = [&] {
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if (!_animation->imageShown.animating()) {
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return image;
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}
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const auto size = anim::interpolate(0, image.width(), imageShown);
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return QRect(
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image.x(),
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image.y() + (image.height() - size) / 2,
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size,
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size);
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}();
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if (_animation->bodyMoved.animating()) {
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p.setOpacity(1. - progress);
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paintImageWithSpoiler(
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p,
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rect.translated(0, shiftFrom),
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_animation->imageFrom,
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_animation->spoilerFrom.get(),
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now,
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pausedSpoiler);
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p.setOpacity(progress);
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paintImageWithSpoiler(
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p,
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rect.translated(0, shiftTo),
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_animation->imageTo,
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_spoiler.get(),
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now,
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pausedSpoiler);
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p.setOpacity(1.);
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} else {
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paintImageWithSpoiler(
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p,
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rect,
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_image,
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_spoiler.get(),
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now,
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pausedSpoiler);
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}
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}
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if (!_animation || _animation->bodyAnimation == BodyAnimation::None) {
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if (_title.isEmpty()) {
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// "Loading..." state.
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p.setPen(st::historyComposeAreaFgService);
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_text.drawLeftElided(
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p,
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body.x(),
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body.y() + (body.height() - st::normalFont->height) / 2,
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body.width(),
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width);
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} else {
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p.setPen(_st.textFg);
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_text.draw(p, {
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.position = { body.x(), text.y() },
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.outerWidth = width,
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.availableWidth = body.width(),
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.palette = &_st.textPalette,
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.spoiler = Ui::Text::DefaultSpoilerCache(),
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.now = now,
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.pausedEmoji = paused || On(PowerSaving::kEmojiChat),
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.pausedSpoiler = pausedSpoiler,
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.elisionOneLine = true,
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});
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}
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} else if (_animation->bodyAnimation == BodyAnimation::Text) {
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p.setOpacity(1. - progress);
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p.drawPixmap(
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body.x(),
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text.y() + shiftFrom,
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_animation->bodyOrTextFrom);
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p.setOpacity(progress);
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p.drawPixmap(body.x(), text.y() + shiftTo, _animation->bodyOrTextTo);
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p.setOpacity(1.);
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}
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if (!_animation || _animation->bodyAnimation != BodyAnimation::Full) {
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if (_animation && !_animation->titleSame.isNull()) {
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const auto factor = style::DevicePixelRatio();
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p.drawPixmap(body.x(), body.y(), _animation->titleSame);
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p.setOpacity(1. - progress);
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p.drawPixmap(
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body.x() + (_animation->titleSame.width() / factor),
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body.y() + shiftFrom,
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_animation->titleFrom);
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p.setOpacity(progress);
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p.drawPixmap(
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body.x() + (_animation->titleSame.width() / factor),
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body.y() + shiftTo,
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_animation->titleTo);
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p.setOpacity(1.);
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} else {
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p.setPen(_st.titleFg);
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_title.drawLeftElided(p, body.x(), body.y(), body.width(), width);
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}
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} else {
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p.setOpacity(1. - progress);
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p.drawPixmap(
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body.x(),
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body.y() + shiftFrom,
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_animation->bodyOrTextFrom);
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p.setOpacity(progress);
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p.drawPixmap(body.x(), body.y() + shiftTo, _animation->bodyOrTextTo);
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p.setOpacity(1.);
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}
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}
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auto MessageBar::countBarState(int index) const -> BarState {
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Expects(index >= 0 && index < _content.count);
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auto result = BarState();
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const auto line = st::msgReplyBarSize.width();
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const auto height = st::msgReplyBarSize.height();
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const auto count = _content.count;
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const auto shownCount = std::min(count, 4);
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const auto dividers = (shownCount - 1) * line;
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const auto size = float64(st::msgReplyBarSize.height() - dividers)
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/ shownCount;
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const auto fullHeight = count * size + (count - 1) * line;
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const auto topByIndex = [&](int index) {
|
|
return index * (size + line);
|
|
};
|
|
result.scroll = (count < 5 || index < 2)
|
|
? 0
|
|
: (index >= count - 2)
|
|
? (fullHeight - height)
|
|
: (topByIndex(index) - (height - size) / 2);
|
|
result.size = size;
|
|
result.skip = line;
|
|
result.offset = topByIndex(index);
|
|
return result;
|
|
}
|
|
|
|
auto MessageBar::countBarState() const -> BarState {
|
|
return countBarState(_content.index);
|
|
}
|
|
|
|
void MessageBar::ensureGradientsCreated(int size) {
|
|
if (!_topBarGradient.isNull()) {
|
|
return;
|
|
}
|
|
const auto rows = size * style::DevicePixelRatio() - 2;
|
|
auto bottomMask = QImage(
|
|
QSize(1, size) * style::DevicePixelRatio(),
|
|
QImage::Format_ARGB32_Premultiplied);
|
|
const auto step = ((1ULL << 24) - 1) / rows;
|
|
const auto limit = step * rows;
|
|
auto bits = bottomMask.bits();
|
|
const auto perLine = bottomMask.bytesPerLine();
|
|
for (auto counter = uint32(0); counter != limit; counter += step) {
|
|
const auto value = (counter >> 16);
|
|
memset(bits, int(value), perLine);
|
|
bits += perLine;
|
|
}
|
|
memset(bits, 255, perLine * 2);
|
|
auto bottom = style::colorizeImage(bottomMask, st::historyPinnedBg);
|
|
bottom.setDevicePixelRatio(style::DevicePixelRatio());
|
|
auto top = bottom.mirrored();
|
|
_bottomBarGradient = Images::PixmapFast(std::move(bottom));
|
|
_topBarGradient = Images::PixmapFast(std::move(top));
|
|
}
|
|
|
|
void MessageBar::paintImageWithSpoiler(
|
|
QPainter &p,
|
|
QRect rect,
|
|
const QPixmap &image,
|
|
SpoilerAnimation *spoiler,
|
|
crl::time now,
|
|
bool paused) const {
|
|
p.drawPixmap(rect, image);
|
|
if (spoiler) {
|
|
const auto frame = DefaultImageSpoiler().frame(
|
|
spoiler->index(now, paused));
|
|
FillSpoilerRect(p, rect, frame);
|
|
}
|
|
}
|
|
|
|
void MessageBar::paintLeftBar(Painter &p) {
|
|
const auto state = countBarState();
|
|
const auto gradientSize = int(std::ceil(state.size * 2.5));
|
|
if (_content.count > 4) {
|
|
ensureGradientsCreated(gradientSize);
|
|
}
|
|
|
|
const auto scroll = _animation
|
|
? _animation->barScroll.value(state.scroll)
|
|
: state.scroll;
|
|
const auto offset = _animation
|
|
? _animation->barTop.value(state.offset)
|
|
: state.offset;
|
|
const auto line = st::msgReplyBarSize.width();
|
|
const auto height = st::msgReplyBarSize.height();
|
|
const auto activeFrom = offset - scroll;
|
|
const auto activeTill = activeFrom + state.size;
|
|
const auto single = state.size + state.skip;
|
|
|
|
const auto barSkip = st::msgReplyPadding.top() + st::msgReplyBarPos.y();
|
|
const auto fullHeight = barSkip + height + barSkip;
|
|
const auto bar = QRect(
|
|
st::msgReplyBarSkip + st::msgReplyBarPos.x(),
|
|
barSkip,
|
|
line,
|
|
state.size);
|
|
const auto paintFromScroll = std::max(scroll - barSkip, 0.);
|
|
const auto paintFrom = int(std::floor(paintFromScroll / single));
|
|
const auto paintTillScroll = (scroll + height + barSkip);
|
|
const auto paintTill = std::min(
|
|
int(std::floor(paintTillScroll / single)) + 1,
|
|
_content.count);
|
|
|
|
p.setPen(Qt::NoPen);
|
|
const auto activeBrush = QBrush(st::msgInReplyBarColor);
|
|
const auto inactiveBrush = QBrush(QColor(
|
|
st::msgInReplyBarColor->c.red(),
|
|
st::msgInReplyBarColor->c.green(),
|
|
st::msgInReplyBarColor->c.blue(),
|
|
st::msgInReplyBarColor->c.alpha() / 3));
|
|
const auto radius = line / 2.;
|
|
auto hq = PainterHighQualityEnabler(p);
|
|
p.setClipRect(bar.x(), 0, bar.width(), fullHeight);
|
|
for (auto i = paintFrom; i != paintTill; ++i) {
|
|
const auto top = i * single - scroll;
|
|
const auto bottom = top + state.size;
|
|
const auto active = (top == activeFrom);
|
|
p.setBrush(active ? activeBrush : inactiveBrush);
|
|
p.drawRoundedRect(bar.translated(0, top), radius, radius);
|
|
if (active
|
|
|| bottom - line <= activeFrom
|
|
|| top + line >= activeTill) {
|
|
continue;
|
|
}
|
|
const auto partFrom = std::max(top, activeFrom);
|
|
const auto partTill = std::min(bottom, activeTill);
|
|
p.setBrush(activeBrush);
|
|
p.drawRoundedRect(
|
|
QRect(bar.x(), bar.y() + partFrom, line, partTill - partFrom),
|
|
radius,
|
|
radius);
|
|
}
|
|
p.setClipping(false);
|
|
if (_content.count > 4) {
|
|
const auto firstScroll = countBarState(2).scroll;
|
|
const auto gradientTop = (scroll >= firstScroll)
|
|
? 0
|
|
: anim::interpolate(-gradientSize, 0, scroll / firstScroll);
|
|
const auto lastScroll = countBarState(_content.count - 3).scroll;
|
|
const auto largestScroll = countBarState(_content.count - 1).scroll;
|
|
const auto gradientBottom = (scroll <= lastScroll)
|
|
? fullHeight
|
|
: anim::interpolate(
|
|
fullHeight,
|
|
fullHeight + gradientSize,
|
|
(scroll - lastScroll) / (largestScroll - lastScroll));
|
|
if (gradientTop > -gradientSize) {
|
|
p.drawPixmap(
|
|
QRect(bar.x(), gradientTop, bar.width(), gradientSize),
|
|
_topBarGradient);
|
|
}
|
|
if (gradientBottom < fullHeight + gradientSize) {
|
|
p.drawPixmap(
|
|
QRect(
|
|
bar.x(),
|
|
gradientBottom - gradientSize,
|
|
bar.width(),
|
|
gradientSize),
|
|
_bottomBarGradient);
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace Ui
|