Added saving of color and size of brush from photo editor to settings.

Telegram/SourceFiles/core/core_settings.cpp

@@ -113,7 +113,8 @@ QByteArray Settings::serialize() const {
 		+ sizeof(qint64)
 		+ sizeof(qint32) * 2
 		+ Serialize::bytearraySize(windowPosition)
-		+ sizeof(qint32);
+		+ sizeof(qint32)
+		+ Serialize::bytearraySize(_photoEditorBrush);
 	for (const auto &[id, rating] : recentEmojiPreloadData) {
 		size += Serialize::stringSize(id) + sizeof(quint16);
 	}
@@ -216,7 +217,8 @@ QByteArray Settings::serialize() const {
 			<< qint32(_workMode.current())
 			<< proxy
 			<< qint32(_hiddenGroupCallTooltips.value())
-			<< qint32(_disableOpenGL ? 1 : 0);
+			<< qint32(_disableOpenGL ? 1 : 0)
+			<< _photoEditorBrush;
 	}
 	return result;
 }
@@ -297,6 +299,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	qint32 workMode = static_cast<qint32>(_workMode.current());
 	QByteArray proxy;
 	qint32 hiddenGroupCallTooltips = qint32(_hiddenGroupCallTooltips.value());
+	QByteArray photoEditorBrush = _photoEditorBrush;
 
 	stream >> themesAccentColors;
 	if (!stream.atEnd()) {
@@ -444,6 +447,9 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	if (!stream.atEnd()) {
 		stream >> disableOpenGL;
 	}
+	if (!stream.atEnd()) {
+		stream >> photoEditorBrush;
+	}
 	if (stream.status() != QDataStream::Ok) {
 		LOG(("App Error: "
 			"Bad data for Core::Settings::constructFromSerialized()"));
@@ -573,6 +579,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 				? Tooltip::Microphone
 				: Tooltip(0));
 	}();
+	_photoEditorBrush = photoEditorBrush;
 }
 
 QString Settings::getSoundPath(const QString &key) const {

Telegram/SourceFiles/core/core_settings.h

@@ -434,6 +434,13 @@ public:
 		_videoPipGeometry = geometry;
 	}
 
+	[[nodiscard]] QByteArray photoEditorBrush() const {
+		return _photoEditorBrush;
+	}
+	void setPhotoEditorBrush(QByteArray brush) {
+		_photoEditorBrush = brush;
+	}
+
 	[[nodiscard]] float64 rememberedSongVolume() const {
 		return _rememberedSongVolume;
 	}
@@ -696,6 +703,8 @@ private:
 	bool _rememberedSoundNotifyFromTray = false;
 	bool _rememberedFlashBounceNotifyFromTray = false;
 
+	QByteArray _photoEditorBrush;
+
 };
 
 } // namespace Core

Telegram/SourceFiles/editor/color_picker.cpp

@@ -17,7 +17,7 @@ namespace Editor {
 namespace {
 
 constexpr auto kPrecision = 1000;
-constexpr auto kMinBrushSize = 0.1;
+constexpr auto kMinBrushSize = 0.1f;
 constexpr auto kMouseSkip = 1.4;
 
 constexpr auto kMinInnerHeight = 0.2;
@@ -83,7 +83,9 @@ inline float64 InterpolationRatio(int from, int to, int result) {
 
 } // namespace
 
-ColorPicker::ColorPicker(not_null<Ui::RpWidget*> parent)
+ColorPicker::ColorPicker(
+	not_null<Ui::RpWidget*> parent,
+	const Brush &savedBrush)
 : _circleColor(Qt::white)
 , _width(st::photoEditorColorPickerWidth)
 , _lineHeight(st::photoEditorColorPickerLineHeight)
@@ -93,7 +95,14 @@ ColorPicker::ColorPicker(not_null<Ui::RpWidget*> parent)
 , _outlinedStop(FindOutlinedStop(_circleColor, _gradientStops, _width))
 , _gradientBrush(
 	GradientBrush(QPoint(_width, _lineHeight / 2), _gradientStops))
-, _brush(Brush{ .sizeRatio = kMinBrushSize, .color = QColor() }) {
+, _brush(Brush{
+	.sizeRatio = (savedBrush.sizeRatio
+		? savedBrush.sizeRatio
+		: kMinBrushSize),
+	.color = (savedBrush.color.isValid()
+		? savedBrush.color
+		: _gradientStops.front().second),
+}) {
 	_colorLine->resize(_width, _lineHeight);
 	_canvasForCircle->resize(
 		_width + circleHeight(kMax),
@@ -101,6 +110,8 @@ ColorPicker::ColorPicker(not_null<Ui::RpWidget*> parent)
 
 	_canvasForCircle->setAttribute(Qt::WA_TransparentForMouseEvents);
 
+	_down.pos = QPoint(colorToPosition(savedBrush.color), 0);
+
 	_colorLine->paintRequest(
 	) | rpl::start_with_next([=] {
 		Painter p(_colorLine);
@@ -146,6 +157,9 @@ ColorPicker::ColorPicker(not_null<Ui::RpWidget*> parent)
 		}
 		const auto e = static_cast<QMouseEvent*>(event.get());
 		updateMousePosition(e->pos(), progress);
+		if (isRelease) {
+			_saveBrushRequests.fire_copy(_brush);
+		}
 
 		_canvasForCircle->update();
 	}, _colorLine->lifetime());
@@ -168,18 +182,14 @@ void ColorPicker::updateMousePosition(const QPoint &pos, float64 progress) {
 	const auto from = 0;
 	const auto to = bottom - skip;
 
-	const auto size = (mappedY > to)
+	// Don't change the brush size when we are on the color line.
-		? _brush.current().sizeRatio // Don't change value.
+	if (mappedY <= to) {
-		: std::clamp(
+		_brush.sizeRatio = std::clamp(
-			1. - InterpolationRatio(from, to, _down.pos.y()),
+			float(1. - InterpolationRatio(from, to, _down.pos.y())),
 			kMinBrushSize,
-			1.);
+			1.f);
-	const auto color = positionToColor(_down.pos.x());
+	}
-
+	_brush.color = positionToColor(_down.pos.x());
-	_brush = Brush{
-		.sizeRatio = float(size),
-		.color = color,
-	};
 }
 
 void ColorPicker::moveLine(const QPoint &position) {
@@ -239,9 +249,9 @@ void ColorPicker::paintCircle(Painter &p) {
 	const auto innerH = InterpolateF(
 		h * kMinInnerHeight,
 		h * kMaxInnerHeight,
-		_brush.current().sizeRatio);
+		_brush.sizeRatio);
 
-	p.setBrush(_brush.current().color);
+	p.setBrush(_brush.color);
 
 	const auto innerRect = QRectF(
 		r.x() + (r.width() - innerH) / 2.,
@@ -297,8 +307,18 @@ void ColorPicker::setVisible(bool visible) {
 	_canvasForCircle->setVisible(visible);
 }
 
-rpl::producer<Brush> ColorPicker::brushValue() const {
+rpl::producer<Brush> ColorPicker::saveBrushRequests() const {
-	return _brush.value();
+	return _saveBrushRequests.events();
+}
+
+int ColorPicker::colorToPosition(const QColor &color) const {
+	const auto step = 1. / kPrecision;
+	for (auto i = 0.; i <= 1.; i += step) {
+		if (positionToColor(i * _width) == color) {
+			return i * _width;
+		}
+	}
+	return 0;
 }
 
 } // namespace Editor

Telegram/SourceFiles/editor/color_picker.h

@@ -25,17 +25,18 @@ public:
 		std::optional<int> nextStopPos = std::nullopt;
 	};
 
-	ColorPicker(not_null<Ui::RpWidget*> parent);
+	ColorPicker(not_null<Ui::RpWidget*> parent, const Brush &savedBrush);
 
 	void moveLine(const QPoint &position);
 	void setVisible(bool visible);
 
-	rpl::producer<Brush> brushValue() const;
+	rpl::producer<Brush> saveBrushRequests() const;
 
 private:
 	void paintCircle(Painter &p);
 	void paintOutline(Painter &p, const QRectF &rect);
 	QColor positionToColor(int x) const;
+	int colorToPosition(const QColor &color) const;
 	int circleHeight(float64 progress = 0.) const;
 	void updateMousePosition(const QPoint &pos, float64 progress);
 
@@ -54,10 +55,12 @@ private:
 		QPoint pos;
 		bool pressed = false;
 	} _down;
-	rpl::variable<Brush> _brush;
+	Brush _brush;
 
 	Ui::Animations::Simple _circleAnimation;
 
+	rpl::event_stream<Brush> _saveBrushRequests;
+
 };
 
 } // namespace Editor

Telegram/SourceFiles/editor/photo_editor.cpp

@@ -7,6 +7,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "editor/photo_editor.h"
 
+#include "core/application.h"
+#include "core/core_settings.h"
 #include "editor/color_picker.h"
 #include "editor/photo_editor_content.h"
 #include "editor/photo_editor_controls.h"
@@ -14,6 +16,32 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_editor.h"
 
 namespace Editor {
+namespace {
+
+constexpr auto kPrecision = 100000;
+
+[[nodiscard]] QByteArray Serialize(const Brush &brush) {
+	auto result = QByteArray();
+	auto stream = QDataStream(&result, QIODevice::WriteOnly);
+	stream.setVersion(QDataStream::Qt_5_3);
+	stream << qint32(brush.sizeRatio * kPrecision) << brush.color;
+	stream.device()->close();
+
+	return result;
+}
+
+[[nodiscard]] Brush Deserialize(const QByteArray &data) {
+	auto stream = QDataStream(data);
+	auto result = Brush();
+	auto size = qint32(0);
+	stream >> size >> result.color;
+	result.sizeRatio = size / float(kPrecision);
+	return (stream.status() != QDataStream::Ok)
+		? Brush()
+		: result;
+}
+
+} // namespace
 
 PhotoEditor::PhotoEditor(
 	not_null<Ui::RpWidget*> parent,
@@ -28,7 +56,10 @@ PhotoEditor::PhotoEditor(
 	_modifications,
 	_undoController))
 , _controls(base::make_unique_q<PhotoEditorControls>(this, _undoController))
-, _colorPicker(std::make_unique<ColorPicker>(this)) {
+, _colorPicker(std::make_unique<ColorPicker>(
+	this,
+	Deserialize(Core::App().settings().photoEditorBrush()))) {
+
 	sizeValue(
 	) | rpl::start_with_next([=](const QSize &size) {
 		if (size.isEmpty()) {
@@ -97,9 +128,18 @@ PhotoEditor::PhotoEditor(
 		}
 	}, lifetime());
 
-	_colorPicker->brushValue(
+	rpl::single(
+		Deserialize(Core::App().settings().photoEditorBrush())
+	) | rpl::then(
+		_colorPicker->saveBrushRequests()
 	) | rpl::start_with_next([=](const Brush &brush) {
 		_content->applyBrush(brush);
+
+		const auto serialized = Serialize(brush);
+		if (Core::App().settings().photoEditorBrush() != serialized) {
+			Core::App().settings().setPhotoEditorBrush(serialized);
+			Core::App().saveSettingsDelayed();
+		}
 	}, lifetime());
 }