83 lines
2.4 KiB
C++
83 lines
2.4 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/round_rect.h"
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#include "ui/style/style_core.h"
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#include "ui/image/image_prepare.h"
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#include "ui/ui_utility.h"
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namespace Ui {
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void DrawRoundedRect(
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QPainter &p,
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const QRect &rect,
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const QBrush &brush,
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const std::array<QImage, 4> &corners,
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RectParts parts) {
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const auto pixelRatio = style::DevicePixelRatio();
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const auto x = rect.x();
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const auto y = rect.y();
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const auto w = rect.width();
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const auto h = rect.height();
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auto cornerWidth = corners[0].width() / pixelRatio;
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auto cornerHeight = corners[0].height() / pixelRatio;
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if (w < 2 * cornerWidth || h < 2 * cornerHeight) return;
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if (w > 2 * cornerWidth) {
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if (parts & RectPart::Top) {
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p.fillRect(x + cornerWidth, y, w - 2 * cornerWidth, cornerHeight, brush);
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}
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if (parts & RectPart::Bottom) {
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p.fillRect(x + cornerWidth, y + h - cornerHeight, w - 2 * cornerWidth, cornerHeight, brush);
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}
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}
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if (h > 2 * cornerHeight) {
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if ((parts & RectPart::NoTopBottom) == RectPart::NoTopBottom) {
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p.fillRect(x, y + cornerHeight, w, h - 2 * cornerHeight, brush);
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} else {
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if (parts & RectPart::Left) {
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p.fillRect(x, y + cornerHeight, cornerWidth, h - 2 * cornerHeight, brush);
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}
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if ((parts & RectPart::Center) && w > 2 * cornerWidth) {
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p.fillRect(x + cornerWidth, y + cornerHeight, w - 2 * cornerWidth, h - 2 * cornerHeight, brush);
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}
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if (parts & RectPart::Right) {
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p.fillRect(x + w - cornerWidth, y + cornerHeight, cornerWidth, h - 2 * cornerHeight, brush);
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}
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}
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}
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if (parts & RectPart::TopLeft) {
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p.drawImage(x, y, corners[0]);
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}
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if (parts & RectPart::TopRight) {
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p.drawImage(x + w - cornerWidth, y, corners[1]);
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}
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if (parts & RectPart::BottomLeft) {
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p.drawImage(x, y + h - cornerHeight, corners[2]);
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}
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if (parts & RectPart::BottomRight) {
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p.drawImage(x + w - cornerWidth, y + h - cornerHeight, corners[3]);
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}
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}
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RoundRect::RoundRect(
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ImageRoundRadius radius,
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const style::color &color)
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: _color(color)
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, _corners(Images::PrepareCorners(radius, color)) {
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style::PaletteChanged(
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) | rpl::start_with_next([=] {
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_corners = Images::PrepareCorners(radius, _color);
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}, _lifetime);
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}
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void RoundRect::paint(QPainter &p, const QRect &rect) const {
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DrawRoundedRect(p, rect, _color, _corners);
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}
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} // namespace Ui
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