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Telegram/lib_ui/ui/rect.h

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#pragma once
+
+#include <QtCore/QRect>
+
+namespace rect {
+
+// Margins.
+namespace m {
+namespace sum {
+
+/*
+	Horizontal.
+	rect::m::sum::h(mypadding);
+*/
+[[nodiscard]] inline int h(const QMargins &margins) {
+	return margins.left() + margins.right();
+}
+
+[[nodiscard]] inline float64 h(const QMarginsF &margins) {
+	return margins.left() + margins.right();
+}
+
+/*
+	Vertical.
+	rect::m::sum::v(mypadding);
+*/
+[[nodiscard]] inline int v(const QMargins &margins) {
+	return margins.top() + margins.bottom();
+}
+
+[[nodiscard]] inline float64 v(const QMarginsF &margins) {
+	return margins.top() + margins.bottom();
+}
+
+} // namespace sum
+
+namespace pos {
+
+/*
+	Top-left.
+	rect::m::pos::tl(mypadding);
+*/
+[[nodiscard]] inline QPoint tl(const QMargins &margins) {
+	return { margins.left(), margins.top() };
+}
+
+[[nodiscard]] inline QPointF tl(const QMarginsF &margins) {
+	return { margins.left(), margins.top() };
+}
+
+} // namespace pos
+} // namespace m
+
+/*
+	rect::right(mywidget);
+*/
+[[nodiscard]] inline int right(const QRect &r) {
+	return r.left() + r.width();
+}
+
+[[nodiscard]] inline float64 right(const QRectF &r) {
+	return r.left() + r.width();
+}
+
+[[nodiscard]] inline int right(not_null<QWidget*> w) {
+	return w->x() + w->width();
+}
+
+/*
+	rect::bottom(mywidget);
+*/
+[[nodiscard]] inline int bottom(const QRect &r) {
+	return r.top() + r.height();
+}
+
+[[nodiscard]] inline float64 bottom(const QRectF &r) {
+	return r.top() + r.height();
+}
+
+[[nodiscard]] inline int bottom(not_null<const QWidget*> w) {
+	return w->y() + w->height();
+}
+
+/*
+	rect::center(mywidget);
+*/
+[[nodiscard]] inline QPoint center(const QRect &r) {
+	return { r.left() + r.width() / 2, r.top() + r.height() / 2 };
+}
+
+[[nodiscard]] inline QPointF center(const QRectF &r) {
+	return { r.left() + r.width() / 2, r.top() + r.height() / 2 };
+}
+
+[[nodiscard]] inline QPoint center(not_null<const QWidget*> w) {
+	return { w->x() + w->width() / 2, w->y() + w->height() / 2 };
+}
+
+} // namespace rect
+
+/*
+	Rect(mysize);
+*/
+[[nodiscard]] inline QRect Rect(const QSize &s) {
+	return QRect(QPoint(), s);
+}
+
+[[nodiscard]] inline QRectF Rect(const QSizeF &s) {
+	return QRectF(QPointF(), s);
+}
+
+/*
+	Rect(x, y, mysize);
+*/
+[[nodiscard]] inline QRect Rect(int x, int y, const QSize &s) {
+	return QRect(QPoint(x, y), s);
+}
+
+[[nodiscard]] inline QRectF Rect(float64 x, float64 y, const QSizeF &s) {
+	return QRectF(QPointF(x, y), s);
+}
+
+/*
+	Size(myside);
+*/
+[[nodiscard]] inline QSize Size(int side) {
+	return QSize(side, side);
+}
+
+[[nodiscard]] inline QSizeF Size(float64 side) {
+	return QSizeF(side, side);
+}
+
+/*
+	Margins(myvalue);
+*/
+[[nodiscard]] inline QMargins Margins(int side) {
+	return QMargins{ side, side, side, side };
+}
+
+[[nodiscard]] inline QMarginsF Margins(float64 side) {
+	return QMarginsF{ side, side, side, side };
+}