Added AbstractSingleMediaPreview.

Telegram/SourceFiles/ui/chat/attach/attach_abstract_single_media_preview.cpp

@@ -0,0 +1,201 @@
+/*
+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 "ui/chat/attach/attach_abstract_single_media_preview.h"
+
+#include "editor/photo_editor_common.h"
+#include "ui/chat/attach/attach_controls.h"
+#include "ui/image/image_prepare.h"
+#include "ui/widgets/buttons.h"
+#include "styles/style_boxes.h"
+#include "styles/style_chat.h"
+#include "styles/style_layers.h"
+
+namespace Ui {
+namespace {
+
+constexpr auto kMinPreviewWidth = 20;
+
+} // namespace
+
+AbstractSingleMediaPreview::AbstractSingleMediaPreview(QWidget *parent)
+: RpWidget(parent)
+, _minThumbH(st::sendBoxAlbumGroupSize.height()
+	+ st::sendBoxAlbumGroupSkipTop * 2)
+, _photoEditorButton(base::make_unique_q<AbstractButton>(this))
+, _controls(base::make_unique_q<AttachControlsWidget>(this)) {
+}
+
+AbstractSingleMediaPreview::~AbstractSingleMediaPreview() = default;
+
+rpl::producer<> AbstractSingleMediaPreview::deleteRequests() const {
+	return _controls->deleteRequests();
+}
+
+rpl::producer<> AbstractSingleMediaPreview::editRequests() const {
+	return _controls->editRequests();
+}
+
+rpl::producer<> AbstractSingleMediaPreview::modifyRequests() const {
+	return _photoEditorButton->clicks() | rpl::to_empty;
+}
+
+void AbstractSingleMediaPreview::preparePreview(QImage preview) {
+	auto maxW = 0;
+	auto maxH = 0;
+	if (_animated && drawBackground()) {
+		auto limitW = st::sendMediaPreviewSize;
+		auto limitH = st::confirmMaxHeight;
+		maxW = qMax(preview.width(), 1);
+		maxH = qMax(preview.height(), 1);
+		if (maxW * limitH > maxH * limitW) {
+			if (maxW < limitW) {
+				maxH = maxH * limitW / maxW;
+				maxW = limitW;
+			}
+		} else {
+			if (maxH < limitH) {
+				maxW = maxW * limitH / maxH;
+				maxH = limitH;
+			}
+		}
+		preview = Images::prepare(
+			preview,
+			maxW * style::DevicePixelRatio(),
+			maxH * style::DevicePixelRatio(),
+			Images::Option::Smooth | Images::Option::Blurred,
+			maxW,
+			maxH);
+	}
+	auto originalWidth = preview.width();
+	auto originalHeight = preview.height();
+	if (!originalWidth || !originalHeight) {
+		originalWidth = originalHeight = 1;
+	}
+	_previewWidth = st::sendMediaPreviewSize;
+	if (preview.width() < _previewWidth) {
+		_previewWidth = qMax(preview.width(), kMinPreviewWidth);
+	}
+	auto maxthumbh = qMin(qRound(1.5 * _previewWidth), st::confirmMaxHeight);
+	_previewHeight = qRound(originalHeight
+		* float64(_previewWidth)
+		/ originalWidth);
+	if (_previewHeight > maxthumbh) {
+		_previewWidth = qRound(_previewWidth
+			* float64(maxthumbh)
+			/ _previewHeight);
+		accumulate_max(_previewWidth, kMinPreviewWidth);
+		_previewHeight = maxthumbh;
+	}
+	_previewLeft = (st::boxWideWidth - _previewWidth) / 2;
+	if (_previewHeight < _minThumbH) {
+		_previewTop = (_minThumbH - _previewHeight) / 2;
+	}
+
+	preview = std::move(preview).scaled(
+		_previewWidth * style::DevicePixelRatio(),
+		_previewHeight * style::DevicePixelRatio(),
+		Qt::IgnoreAspectRatio,
+		Qt::SmoothTransformation);
+	preview = Images::prepareOpaque(std::move(preview));
+	_preview = PixmapFromImage(std::move(preview));
+	_preview.setDevicePixelRatio(style::DevicePixelRatio());
+
+	_photoEditorButton->resize(_previewWidth, _previewHeight);
+	_photoEditorButton->moveToLeft(_previewLeft, _previewTop);
+	_photoEditorButton->setVisible(isPhoto());
+
+	resize(width(), std::max(_previewHeight, _minThumbH));
+}
+
+void AbstractSingleMediaPreview::resizeEvent(QResizeEvent *e) {
+	_controls->moveToRight(
+		st::boxPhotoPadding.right() + st::sendBoxAlbumGroupSkipRight,
+		st::sendBoxAlbumGroupSkipTop,
+		width());
+}
+
+void AbstractSingleMediaPreview::paintEvent(QPaintEvent *e) {
+	Painter p(this);
+
+	if (drawBackground()) {
+		const auto &padding = st::boxPhotoPadding;
+		if (_previewLeft > padding.left()) {
+			p.fillRect(
+				padding.left(),
+				_previewTop,
+				_previewLeft - padding.left(),
+				_previewHeight,
+				st::confirmBg);
+		}
+		if ((_previewLeft + _previewWidth) < (width() - padding.right())) {
+			p.fillRect(
+				_previewLeft + _previewWidth,
+				_previewTop,
+				width() - padding.right() - _previewLeft - _previewWidth,
+				_previewHeight,
+				st::confirmBg);
+		}
+		if (_previewTop > 0) {
+			p.fillRect(
+				padding.left(),
+				0,
+				width() - padding.right() - padding.left(),
+				height(),
+				st::confirmBg);
+		}
+	}
+	if (!tryPaintAnimation(p)) {
+		p.drawPixmap(_previewLeft, _previewTop, _preview);
+	}
+	if (_animated && !isAnimatedPreviewReady()) {
+		const auto innerSize = st::msgFileLayout.thumbSize;
+		auto inner = QRect(
+			_previewLeft + (_previewWidth - innerSize) / 2,
+			_previewTop + (_previewHeight - innerSize) / 2,
+			innerSize,
+			innerSize);
+		p.setPen(Qt::NoPen);
+		p.setBrush(st::msgDateImgBg);
+
+		{
+			PainterHighQualityEnabler hq(p);
+			p.drawEllipse(inner);
+		}
+
+		auto icon = &st::historyFileInPlay;
+		icon->paintInCenter(p, inner);
+	}
+}
+
+int AbstractSingleMediaPreview::previewLeft() const {
+	return _previewLeft;
+}
+
+int AbstractSingleMediaPreview::previewTop() const {
+	return _previewTop;
+}
+
+int AbstractSingleMediaPreview::previewWidth() const {
+	return _previewWidth;
+}
+
+int AbstractSingleMediaPreview::previewHeight() const {
+	return _previewHeight;
+}
+
+void AbstractSingleMediaPreview::setAnimated(bool animated) {
+	_animated = animated;
+}
+
+bool AbstractSingleMediaPreview::isPhoto() const {
+	return drawBackground()
+		&& !isAnimatedPreviewReady()
+		&& !_animated;
+}
+
+} // namespace Ui

Telegram/SourceFiles/ui/chat/attach/attach_abstract_single_media_preview.h

@@ -0,0 +1,61 @@
+/*
+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
+*/
+#pragma once
+
+#include "ui/rp_widget.h"
+#include "ui/abstract_button.h"
+
+namespace Ui {
+
+class AttachControlsWidget;
+
+class AbstractSingleMediaPreview : public RpWidget {
+public:
+	AbstractSingleMediaPreview(QWidget *parent);
+	~AbstractSingleMediaPreview();
+
+	[[nodiscard]] rpl::producer<> deleteRequests() const;
+	[[nodiscard]] rpl::producer<> editRequests() const;
+	[[nodiscard]] rpl::producer<> modifyRequests() const;
+
+	[[nodiscard]] bool isPhoto() const;
+
+protected:
+	virtual bool drawBackground() const = 0;
+	virtual bool tryPaintAnimation(Painter &p) = 0;
+	virtual bool isAnimatedPreviewReady() const = 0;
+
+	void preparePreview(QImage preview);
+
+	int previewLeft() const;
+	int previewTop() const;
+	int previewWidth() const;
+	int previewHeight() const;
+
+	void setAnimated(bool animated);
+
+private:
+	void paintEvent(QPaintEvent *e) override;
+	void resizeEvent(QResizeEvent *e) override;
+
+	bool _animated = false;
+	QPixmap _preview;
+	int _previewLeft = 0;
+	int _previewTop = 0;
+	int _previewWidth = 0;
+	int _previewHeight = 0;
+
+	const int _minThumbH;
+	const base::unique_qptr<AbstractButton> _photoEditorButton;
+	const base::unique_qptr<AttachControlsWidget> _controls;
+
+	rpl::event_stream<> _modifyRequests;
+
+};
+
+} // namespace Ui

Telegram/SourceFiles/ui/chat/attach/attach_single_media_preview.cpp

@@ -8,22 +8,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/chat/attach/attach_single_media_preview.h"
 
 #include "editor/photo_editor_common.h"
-#include "ui/chat/attach/attach_controls.h"
 #include "ui/chat/attach/attach_prepare.h"
-#include "ui/widgets/buttons.h"
 #include "core/mime_type.h"
 #include "lottie/lottie_single_player.h"
-#include "styles/style_boxes.h"
-#include "styles/style_chat.h"
-#include "styles/style_layers.h"
-#include "styles/palette.h"
 
 namespace Ui {
-namespace {
-
-constexpr auto kMinPreviewWidth = 20;
-
-} // namespace
 
 SingleMediaPreview *SingleMediaPreview::Create(
 		QWidget *parent,
@@ -65,119 +54,59 @@ SingleMediaPreview::SingleMediaPreview(
 	bool animated,
 	bool sticker,
 	const QString &animatedPreviewPath)
-: RpWidget(parent)
+: AbstractSingleMediaPreview(parent)
 , _gifPaused(std::move(gifPaused))
-, _animated(animated)
-, _sticker(sticker)
-, _minThumbH(st::sendBoxAlbumGroupSize.height()
-	+ st::sendBoxAlbumGroupSkipTop * 2)
-, _photoEditorButton(base::make_unique_q<AbstractButton>(this))
-, _controls(base::make_unique_q<AttachControlsWidget>(this)) {
+, _sticker(sticker) {
 	Expects(!preview.isNull());
+	setAnimated(animated);
 
-	preparePreview(preview, animatedPreviewPath);
+	prepareAnimatedPreview(animatedPreviewPath, animated);
+	preparePreview(preview);
 }
 
-SingleMediaPreview::~SingleMediaPreview() = default;
-
-rpl::producer<> SingleMediaPreview::deleteRequests() const {
-	return _controls->deleteRequests();
+bool SingleMediaPreview::drawBackground() const {
+	return !_sticker;
 }
 
-rpl::producer<> SingleMediaPreview::editRequests() const {
-	return _controls->editRequests();
+bool SingleMediaPreview::tryPaintAnimation(Painter &p) {
+	if (_gifPreview && _gifPreview->started()) {
+		auto s = QSize(previewWidth(), previewHeight());
+		auto paused = _gifPaused();
+		auto frame = _gifPreview->current(
+			s.width(),
+			s.height(),
+			s.width(),
+			s.height(),
+			ImageRoundRadius::None,
+			RectPart::None,
+			paused ? 0 : crl::now());
+		p.drawPixmap(previewLeft(), previewTop(), frame);
+		return true;
+	} else if (_lottiePreview && _lottiePreview->ready()) {
+		const auto frame = _lottiePreview->frame();
+		const auto size = frame.size() / style::DevicePixelRatio();
+		p.drawImage(
+			QRect(
+				previewLeft() + (previewWidth() - size.width()) / 2,
+				(previewHeight() - size.height()) / 2,
+				size.width(),
+				size.height()),
+			frame);
+		_lottiePreview->markFrameShown();
+		return true;
+	}
+	return false;
 }
 
-rpl::producer<> SingleMediaPreview::modifyRequests() const {
-	return _photoEditorButton->clicks() | rpl::to_empty;
-}
-
-void SingleMediaPreview::preparePreview(
-		QImage preview,
-		const QString &animatedPreviewPath) {
-	auto maxW = 0;
-	auto maxH = 0;
-	if (_animated && !_sticker) {
-		auto limitW = st::sendMediaPreviewSize;
-		auto limitH = st::confirmMaxHeight;
-		maxW = qMax(preview.width(), 1);
-		maxH = qMax(preview.height(), 1);
-		if (maxW * limitH > maxH * limitW) {
-			if (maxW < limitW) {
-				maxH = maxH * limitW / maxW;
-				maxW = limitW;
-			}
-		} else {
-			if (maxH < limitH) {
-				maxW = maxW * limitH / maxH;
-				maxH = limitH;
-			}
-		}
-		preview = Images::prepare(
-			preview,
-			maxW * style::DevicePixelRatio(),
-			maxH * style::DevicePixelRatio(),
-			Images::Option::Smooth | Images::Option::Blurred,
-			maxW,
-			maxH);
-	}
-	auto originalWidth = preview.width();
-	auto originalHeight = preview.height();
-	if (!originalWidth || !originalHeight) {
-		originalWidth = originalHeight = 1;
-	}
-	_previewWidth = st::sendMediaPreviewSize;
-	if (preview.width() < _previewWidth) {
-		_previewWidth = qMax(preview.width(), kMinPreviewWidth);
-	}
-	auto maxthumbh = qMin(qRound(1.5 * _previewWidth), st::confirmMaxHeight);
-	_previewHeight = qRound(originalHeight
-		* float64(_previewWidth)
-		/ originalWidth);
-	if (_previewHeight > maxthumbh) {
-		_previewWidth = qRound(_previewWidth
-			* float64(maxthumbh)
-			/ _previewHeight);
-		accumulate_max(_previewWidth, kMinPreviewWidth);
-		_previewHeight = maxthumbh;
-	}
-	_previewLeft = (st::boxWideWidth - _previewWidth) / 2;
-	if (_previewHeight < _minThumbH) {
-		_previewTop = (_minThumbH - _previewHeight) / 2;
-	}
-
-	preview = std::move(preview).scaled(
-		_previewWidth * style::DevicePixelRatio(),
-		_previewHeight * style::DevicePixelRatio(),
-		Qt::IgnoreAspectRatio,
-		Qt::SmoothTransformation);
-	preview = Images::prepareOpaque(std::move(preview));
-	_preview = PixmapFromImage(std::move(preview));
-	_preview.setDevicePixelRatio(style::DevicePixelRatio());
-
-	prepareAnimatedPreview(animatedPreviewPath);
-
-	_photoEditorButton->resize(_previewWidth, _previewHeight);
-	_photoEditorButton->moveToLeft(_previewLeft, _previewTop);
-	_photoEditorButton->setVisible(!_sticker
-		&& !_gifPreview
-		&& !_lottiePreview
-		&& !_animated);
-
-	resize(width(), std::max(_previewHeight, _minThumbH));
-}
-
-void SingleMediaPreview::resizeEvent(QResizeEvent *e) {
-	_controls->moveToRight(
-		st::boxPhotoPadding.right() + st::sendBoxAlbumGroupSkipRight,
-		st::sendBoxAlbumGroupSkipTop,
-		width());
+bool SingleMediaPreview::isAnimatedPreviewReady() const {
+	return _gifPreview || _lottiePreview;
 }
 
 void SingleMediaPreview::prepareAnimatedPreview(
-		const QString &animatedPreviewPath) {
-	if (_sticker && _animated) {
-		const auto box = QSize(_previewWidth, _previewHeight)
+		const QString &animatedPreviewPath,
+		bool animated) {
+	if (_sticker && animated) {
+		const auto box = QSize(previewWidth(), previewHeight())
 			* style::DevicePixelRatio();
 		_lottiePreview = std::make_unique<Lottie::SinglePlayer>(
 			Lottie::ReadContent(QByteArray(), animatedPreviewPath),
@@ -206,7 +135,7 @@ void SingleMediaPreview::clipCallback(
 		}
 
 		if (_gifPreview && _gifPreview->ready() && !_gifPreview->started()) {
-			auto s = QSize(_previewWidth, _previewHeight);
+			const auto s = QSize(previewWidth(), previewHeight());
 			_gifPreview->start(
 				s.width(),
 				s.height(),
@@ -227,80 +156,4 @@ void SingleMediaPreview::clipCallback(
 	}
 }
 
-void SingleMediaPreview::paintEvent(QPaintEvent *e) {
-	Painter p(this);
-
-	if (!_sticker) {
-		const auto &padding = st::boxPhotoPadding;
-		if (_previewLeft > padding.left()) {
-			p.fillRect(
-				padding.left(),
-				_previewTop,
-				_previewLeft - padding.left(),
-				_previewHeight,
-				st::confirmBg);
-		}
-		if ((_previewLeft + _previewWidth) < (width() - padding.right())) {
-			p.fillRect(
-				_previewLeft + _previewWidth,
-				_previewTop,
-				width() - padding.right() - _previewLeft - _previewWidth,
-				_previewHeight,
-				st::confirmBg);
-		}
-		if (_previewTop > 0) {
-			p.fillRect(
-				padding.left(),
-				0,
-				width() - padding.right() - padding.left(),
-				height(),
-				st::confirmBg);
-		}
-	}
-	if (_gifPreview && _gifPreview->started()) {
-		auto s = QSize(_previewWidth, _previewHeight);
-		auto paused = _gifPaused();
-		auto frame = _gifPreview->current(
-			s.width(),
-			s.height(),
-			s.width(),
-			s.height(),
-			ImageRoundRadius::None,
-			RectPart::None,
-			paused ? 0 : crl::now());
-		p.drawPixmap(_previewLeft, _previewTop, frame);
-	} else if (_lottiePreview && _lottiePreview->ready()) {
-		const auto frame = _lottiePreview->frame();
-		const auto size = frame.size() / style::DevicePixelRatio();
-		p.drawImage(
-			QRect(
-				_previewLeft + (_previewWidth - size.width()) / 2,
-				(_previewHeight - size.height()) / 2,
-				size.width(),
-				size.height()),
-			frame);
-		_lottiePreview->markFrameShown();
-	} else {
-		p.drawPixmap(_previewLeft, _previewTop, _preview);
-	}
-	if (_animated && !_gifPreview && !_lottiePreview) {
-		const auto innerSize = st::msgFileLayout.thumbSize;
-		auto inner = QRect(
-			_previewLeft + (_previewWidth - innerSize) / 2,
-			_previewTop + (_previewHeight - innerSize) / 2,
-			innerSize,
-			innerSize);
-		p.setPen(Qt::NoPen);
-		p.setBrush(st::msgDateImgBg);
-
-		{
-			PainterHighQualityEnabler hq(p);
-			p.drawEllipse(inner);
-		}
-
-		auto icon = &st::historyFileInPlay;
-		icon->paintInCenter(p, inner);
-	}
-}
-
 } // namespace Ui

Telegram/SourceFiles/ui/chat/attach/attach_single_media_preview.h

@@ -7,8 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
-#include "ui/rp_widget.h"
-#include "ui/abstract_button.h"
+#include "ui/chat/attach/attach_abstract_single_media_preview.h"
 #include "media/clip/media_clip_reader.h"
 
 namespace Lottie {
@@ -17,11 +16,9 @@ class SinglePlayer;
 
 namespace Ui {
 
-class AttachControlsWidget;
 struct PreparedFile;
-class IconButton;
 
-class SingleMediaPreview final : public RpWidget {
+class SingleMediaPreview final : public AbstractSingleMediaPreview {
 public:
 	static SingleMediaPreview *Create(
 		QWidget *parent,
@@ -35,39 +32,23 @@ public:
 		bool animated,
 		bool sticker,
 		const QString &animatedPreviewPath);
-	~SingleMediaPreview();
 
-	[[nodiscard]] rpl::producer<> deleteRequests() const;
-	[[nodiscard]] rpl::producer<> editRequests() const;
-	[[nodiscard]] rpl::producer<> modifyRequests() const;
+protected:
+	bool drawBackground() const override;
+	bool tryPaintAnimation(Painter &p) override;
+	bool isAnimatedPreviewReady() const override;
 
 private:
-	void paintEvent(QPaintEvent *e) override;
-	void resizeEvent(QResizeEvent *e) override;
-
-	void preparePreview(
-		QImage preview,
-		const QString &animatedPreviewPath);
-	void prepareAnimatedPreview(const QString &animatedPreviewPath);
+	void prepareAnimatedPreview(
+		const QString &animatedPreviewPath,
+		bool animated);
 	void clipCallback(Media::Clip::Notification notification);
 
-	Fn<bool()> _gifPaused;
-	bool _animated = false;
-	bool _sticker = false;
-	QPixmap _preview;
-	int _previewLeft = 0;
-	int _previewTop = 0;
-	int _previewWidth = 0;
-	int _previewHeight = 0;
+	const Fn<bool()> _gifPaused;
+	const bool _sticker = false;
 	Media::Clip::ReaderPointer _gifPreview;
 	std::unique_ptr<Lottie::SinglePlayer> _lottiePreview;
 
-	const int _minThumbH;
-	const base::unique_qptr<AbstractButton> _photoEditorButton;
-	const base::unique_qptr<AttachControlsWidget> _controls;
-
-	rpl::event_stream<> _modifyRequests;
-
 };
 
 } // namespace Ui

Telegram/cmake/td_ui.cmake

@@ -108,6 +108,8 @@ PRIVATE
     ui/boxes/single_choice_box.h
     ui/chat/attach/attach_abstract_single_file_preview.cpp
     ui/chat/attach/attach_abstract_single_file_preview.h
+    ui/chat/attach/attach_abstract_single_media_preview.cpp
+    ui/chat/attach/attach_abstract_single_media_preview.h
     ui/chat/attach/attach_album_preview.cpp
     ui/chat/attach/attach_album_preview.h
     ui/chat/attach/attach_album_thumbnail.cpp