Moved out chart header to separated files.

Telegram/CMakeLists.txt

@@ -1282,6 +1282,8 @@ PRIVATE
     settings/settings_type.h
     settings/settings_websites.cpp
     settings/settings_websites.h
+    statistics/chart_header_widget.cpp
+    statistics/chart_header_widget.h
     statistics/chart_horizontal_lines_data.cpp
     statistics/chart_horizontal_lines_data.h
     statistics/chart_widget.cpp

Telegram/SourceFiles/statistics/chart_header_widget.cpp

@@ -0,0 +1,45 @@
+/*
+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 "statistics/chart_header_widget.h"
+
+#include "ui/painter.h"
+#include "styles/style_statistics.h"
+
+namespace Statistic {
+
+void Header::setTitle(QString title) {
+	_titleWidth = st::statisticsHeaderTitleTextStyle.font->width(title);
+	_title.setText(st::statisticsHeaderTitleTextStyle, std::move(title));
+}
+
+void Header::setRightInfo(QString rightInfo) {
+	_rightInfo.setText(
+		st::statisticsHeaderDatesTextStyle,
+		std::move(rightInfo));
+}
+
+void Header::paintEvent(QPaintEvent *e) {
+	auto p = Painter(this);
+
+	p.fillRect(rect(), st::boxBg);
+
+	p.setPen(st::boxTextFg);
+	const auto top = (height()
+		- st::statisticsHeaderTitleTextStyle.font->height) / 2;
+	_title.drawLeftElided(p, 0, top, width(), width());
+	_rightInfo.drawRightElided(
+		p,
+		0,
+		top,
+		width() - _titleWidth,
+		width(),
+		1,
+		style::al_right);
+}
+
+} // namespace Statistic

Telegram/SourceFiles/statistics/chart_header_widget.h

@@ -0,0 +1,31 @@
+/*
+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"
+
+namespace Statistic {
+
+class Header final : public Ui::RpWidget {
+public:
+	using Ui::RpWidget::RpWidget;
+
+	void setTitle(QString title);
+	void setRightInfo(QString rightInfo);
+
+protected:
+	void paintEvent(QPaintEvent *e) override;
+
+private:
+	Ui::Text::String _title;
+	Ui::Text::String _rightInfo;
+	int _titleWidth = 0;
+
+};
+
+} // namespace Statistic

Telegram/SourceFiles/statistics/chart_widget.cpp

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/effects/show_animation.h"
 #include "base/qt/qt_key_modifiers.h"
 #include "lang/lang_keys.h"
+#include "statistics/chart_header_widget.h"
 #include "statistics/chart_lines_filter_widget.h"
 #include "statistics/point_details_widget.h"
 #include "statistics/view/abstract_chart_view.h"
@@ -164,53 +165,6 @@ void RpMouseWidget::mouseReleaseEvent(QMouseEvent *e) {
 	_mouseStateChanged.fire({ e->pos(), QEvent::MouseButtonRelease });
 }
 
-class ChartWidget::Header final : public RpWidget {
-public:
-	using RpWidget::RpWidget;
-
-	void setTitle(QString title);
-	void setRightInfo(QString rightInfo);
-
-protected:
-	void paintEvent(QPaintEvent *e) override;
-
-private:
-	Ui::Text::String _title;
-	Ui::Text::String _rightInfo;
-	int _titleWidth = 0;
-
-};
-
-void ChartWidget::Header::setTitle(QString title) {
-	_titleWidth = st::statisticsHeaderTitleTextStyle.font->width(title);
-	_title.setText(st::statisticsHeaderTitleTextStyle, std::move(title));
-}
-
-void ChartWidget::Header::setRightInfo(QString rightInfo) {
-	_rightInfo.setText(
-		st::statisticsHeaderDatesTextStyle,
-		std::move(rightInfo));
-}
-
-void ChartWidget::Header::paintEvent(QPaintEvent *e) {
-	auto p = Painter(this);
-
-	p.fillRect(rect(), st::boxBg);
-
-	p.setPen(st::boxTextFg);
-	const auto top = (height()
-		- st::statisticsHeaderTitleTextStyle.font->height) / 2;
-	_title.drawLeftElided(p, 0, top, width(), width());
-	_rightInfo.drawRightElided(
-		p,
-		0,
-		top,
-		width() - _titleWidth,
-		width(),
-		1,
-		style::al_right);
-}
-
 class ChartWidget::Footer final : public RpMouseWidget {
 public:
 	using PaintCallback = Fn<void(QPainter &, const QRect &)>;

Telegram/SourceFiles/statistics/chart_widget.h

@@ -20,6 +20,7 @@ class RpMouseWidget;
 class PointDetailsWidget;
 class ChartLinesFilterWidget;
 class AbstractChartView;
+class Header;
 
 class ChartWidget : public Ui::RpWidget {
 public:
@@ -50,7 +51,6 @@ protected:
 	int resizeGetHeight(int newWidth) override;
 
 private:
-	class Header;
 	class Footer;
 
 	class ChartAnimationController final {