346 lines
12 KiB
C++
346 lines
12 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "history/history_service_layout.h"
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#include "data/data_abstract_structure.h"
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#include "styles/style_history.h"
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#include "mainwidget.h"
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#include "lang.h"
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namespace HistoryLayout {
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namespace {
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enum CircleMask {
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NormalMask = 0x00,
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InvertedMask = 0x01,
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};
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enum CircleMaskMultiplier {
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MaskMultiplier = 0x04,
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};
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enum CornerVerticalSide {
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CornerTop = 0x00,
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CornerBottom = 0x02,
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};
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enum CornerHorizontalSide {
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CornerLeft = 0x00,
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CornerRight = 0x01,
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};
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class ServiceMessageStyleData : public Data::AbstractStructure {
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public:
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// circle[CircleMask value]
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QImage circle[2];
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// corners[(CircleMask value) * MaskMultiplier | (CornerVerticalSide value) | (CornerHorizontalSide value)]
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QPixmap corners[8];
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};
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Data::GlobalStructurePointer<ServiceMessageStyleData> serviceMessageStyle;
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int historyServiceMsgRadius() {
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static int HistoryServiceMsgRadius = ([]() {
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auto minMsgHeight = (st::msgServiceFont->height + st::msgServicePadding.top() + st::msgServicePadding.bottom());
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return minMsgHeight / 2;
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})();
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return HistoryServiceMsgRadius;
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}
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int historyServiceMsgInvertedRadius() {
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static int HistoryServiceMsgInvertedRadius = ([]() {
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auto minRowHeight = st::msgServiceFont->height;
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return minRowHeight - historyServiceMsgRadius();
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})();
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return HistoryServiceMsgInvertedRadius;
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}
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int historyServiceMsgInvertedShrink() {
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static int HistoryServiceMsgInvertedShrink = ([]() {
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return (historyServiceMsgInvertedRadius() * 2) / 3;
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})();
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return HistoryServiceMsgInvertedShrink;
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}
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void createCircleMasks() {
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serviceMessageStyle.createIfNull();
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if (!serviceMessageStyle->circle[NormalMask].isNull()) return;
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int size = historyServiceMsgRadius() * 2;
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serviceMessageStyle->circle[NormalMask] = style::createCircleMask(size);
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int sizeInverted = historyServiceMsgInvertedRadius() * 2;
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serviceMessageStyle->circle[InvertedMask] = style::createInvertedCircleMask(sizeInverted);
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}
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QPixmap circleCorner(int corner) {
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if (serviceMessageStyle->corners[corner].isNull()) {
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int maskType = corner / MaskMultiplier;
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int radius = (maskType == NormalMask ? historyServiceMsgRadius() : historyServiceMsgInvertedRadius());
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int size = radius * cIntRetinaFactor();
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int xoffset = 0, yoffset = 0;
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if (corner & CornerRight) {
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xoffset = size;
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}
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if (corner & CornerBottom) {
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yoffset = size;
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}
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auto part = QRect(xoffset, yoffset, size, size);
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auto result = style::colorizeImage(serviceMessageStyle->circle[maskType], App::msgServiceBg(), part);
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result.setDevicePixelRatio(cRetinaFactor());
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serviceMessageStyle->corners[corner] = App::pixmapFromImageInPlace(std_::move(result));
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}
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return serviceMessageStyle->corners[corner];
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}
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enum class SideStyle {
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Rounded,
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Plain,
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Inverted,
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};
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// Returns amount of pixels already painted vertically (so you can skip them in the complex rect shape).
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int paintBubbleSide(Painter &p, int x, int y, int width, SideStyle style, CornerVerticalSide side) {
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if (style == SideStyle::Rounded) {
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auto left = circleCorner((NormalMask * MaskMultiplier) | side | CornerLeft);
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int leftWidth = left.width() / cIntRetinaFactor();
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p.drawPixmap(x, y, left);
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auto right = circleCorner((NormalMask * MaskMultiplier) | side | CornerRight);
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int rightWidth = right.width() / cIntRetinaFactor();
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p.drawPixmap(x + width - rightWidth, y, right);
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int cornerHeight = left.height() / cIntRetinaFactor();
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p.fillRect(x + leftWidth, y, width - leftWidth - rightWidth, cornerHeight, App::msgServiceBg());
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return cornerHeight;
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} else if (style == SideStyle::Inverted) {
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// CornerLeft and CornerRight are inverted for SideStyle::Inverted sprites.
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auto left = circleCorner((InvertedMask * MaskMultiplier) | side | CornerRight);
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int leftWidth = left.width() / cIntRetinaFactor();
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p.drawPixmap(x - leftWidth, y, left);
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auto right = circleCorner((InvertedMask * MaskMultiplier) | side | CornerLeft);
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p.drawPixmap(x + width, y, right);
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}
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return 0;
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}
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void paintBubblePart(Painter &p, int x, int y, int width, int height, SideStyle topStyle, SideStyle bottomStyle, bool forceShrink = false) {
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if (topStyle == SideStyle::Inverted || bottomStyle == SideStyle::Inverted || forceShrink) {
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width -= historyServiceMsgInvertedShrink() * 2;
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x += historyServiceMsgInvertedShrink();
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}
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if (int skip = paintBubbleSide(p, x, y, width, topStyle, CornerTop)) {
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y += skip;
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height -= skip;
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}
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int bottomSize = 0;
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if (bottomStyle == SideStyle::Rounded) {
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bottomSize = historyServiceMsgRadius();
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} else if (bottomStyle == SideStyle::Inverted) {
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bottomSize = historyServiceMsgInvertedRadius();
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}
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if (int skip = paintBubbleSide(p, x, y + height - bottomSize, width, bottomStyle, CornerBottom)) {
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height -= skip;
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}
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p.fillRect(x, y, width, height, App::msgServiceBg());
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}
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void paintPreparedDate(Painter &p, const QString &dateText, int dateTextWidth, int y, int w) {
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int left = st::msgServiceMargin.left();
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int maxwidth = w;
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if (Adaptive::Wide()) {
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maxwidth = qMin(maxwidth, int32(st::msgMaxWidth + 2 * st::msgPhotoSkip + 2 * st::msgMargin.left()));
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}
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w = maxwidth - st::msgServiceMargin.left() - st::msgServiceMargin.left();
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left += (w - dateTextWidth - st::msgServicePadding.left() - st::msgServicePadding.right()) / 2;
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int height = st::msgServicePadding.top() + st::msgServiceFont->height + st::msgServicePadding.bottom();
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ServiceMessagePainter::paintBubble(p, left, y + st::msgServiceMargin.top(), dateTextWidth + st::msgServicePadding.left() + st::msgServicePadding.left(), height);
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p.setFont(st::msgServiceFont);
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p.setPen(st::msgServiceColor);
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p.drawText(left + st::msgServicePadding.left(), y + st::msgServiceMargin.top() + st::msgServicePadding.top() + st::msgServiceFont->ascent, dateText);
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}
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} // namepsace
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void ServiceMessagePainter::paint(Painter &p, const HistoryService *message, const PaintContext &context, int height) {
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int left = 0, width = 0;
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message->countPositionAndSize(left, width);
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if (width < 1) return;
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uint64 fullAnimMs = App::main() ? App::main()->animActiveTimeStart(message) : 0;
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if (fullAnimMs > 0 && fullAnimMs <= context.ms) {
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int animms = context.ms - fullAnimMs;
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if (animms > st::activeFadeInDuration + st::activeFadeOutDuration) {
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App::main()->stopAnimActive();
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} else {
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int skiph = st::msgServiceMargin.top() - st::msgServiceMargin.bottom();
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textstyleSet(&st::inTextStyle);
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float64 dt = (animms > st::activeFadeInDuration) ? (1 - (animms - st::activeFadeInDuration) / float64(st::activeFadeOutDuration)) : (animms / float64(st::activeFadeInDuration));
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float64 o = p.opacity();
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p.setOpacity(o * dt);
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p.fillRect(0, skiph, message->history()->width, message->height() - skiph, textstyleCurrent()->selectOverlay->b);
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p.setOpacity(o);
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}
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}
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textstyleSet(&st::serviceTextStyle);
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if (auto media = message->getMedia()) {
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height -= st::msgServiceMargin.top() + media->height();
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int32 left = st::msgServiceMargin.left() + (width - media->maxWidth()) / 2, top = st::msgServiceMargin.top() + height + st::msgServiceMargin.top();
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p.translate(left, top);
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media->draw(p, context.clip.translated(-left, -top), message->toMediaSelection(context.selection), context.ms);
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p.translate(-left, -top);
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}
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QRect trect(QRect(left, st::msgServiceMargin.top(), width, height).marginsAdded(-st::msgServicePadding));
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paintComplexBubble(p, left, width, message->_text, trect);
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if (width > message->maxWidth()) {
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left += (width - message->maxWidth()) / 2;
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width = message->maxWidth();
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}
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p.setBrush(Qt::NoBrush);
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p.setPen(st::msgServiceColor);
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p.setFont(st::msgServiceFont);
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message->_text.draw(p, trect.x(), trect.y(), trect.width(), Qt::AlignCenter, 0, -1, context.selection, false);
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textstyleRestore();
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}
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void ServiceMessagePainter::paintDate(Painter &p, const QDateTime &date, int y, int w) {
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auto dateText = langDayOfMonthFull(date.date());
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auto dateTextWidth = st::msgServiceFont->width(dateText);
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paintPreparedDate(p, dateText, dateTextWidth, y, w);
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}
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void ServiceMessagePainter::paintDate(Painter &p, const QString &dateText, int dateTextWidth, int y, int w) {
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paintPreparedDate(p, dateText, dateTextWidth, y, w);
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}
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void ServiceMessagePainter::paintBubble(Painter &p, int x, int y, int w, int h) {
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createCircleMasks();
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paintBubblePart(p, x, y, w, h, SideStyle::Rounded, SideStyle::Rounded);
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}
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void ServiceMessagePainter::paintComplexBubble(Painter &p, int left, int width, const Text &text, const QRect &textRect) {
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createCircleMasks();
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auto lineWidths = countLineWidths(text, textRect);
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int y = st::msgServiceMargin.top(), previousRichWidth = 0;
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bool previousShrink = false, forceShrink = false;
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SideStyle topStyle = SideStyle::Rounded, bottomStyle;
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for (int i = 0, count = lineWidths.size(); i < count; ++i) {
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auto lineWidth = lineWidths.at(i);
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if (i + 1 < count) {
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auto nextLineWidth = lineWidths.at(i + 1);
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if (nextLineWidth > lineWidth) {
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bottomStyle = SideStyle::Inverted;
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} else if (nextLineWidth < lineWidth) {
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bottomStyle = SideStyle::Rounded;
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} else {
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bottomStyle = SideStyle::Plain;
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}
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} else {
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bottomStyle = SideStyle::Rounded;
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}
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auto richWidth = lineWidth + st::msgServicePadding.left() + st::msgServicePadding.right();
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auto richHeight = st::msgServiceFont->height;
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if (topStyle == SideStyle::Rounded) {
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richHeight += st::msgServicePadding.top();
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} else if (topStyle == SideStyle::Inverted) {
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richHeight -= st::msgServicePadding.bottom();
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}
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if (bottomStyle == SideStyle::Rounded) {
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richHeight += st::msgServicePadding.bottom();
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} else if (bottomStyle == SideStyle::Inverted) {
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richHeight -= st::msgServicePadding.top();
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}
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forceShrink = previousShrink && (richWidth == previousRichWidth);
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paintBubblePart(p, left + ((width - richWidth) / 2), y, richWidth, richHeight, topStyle, bottomStyle, forceShrink);
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y += richHeight;
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previousShrink = forceShrink || (topStyle == SideStyle::Inverted) || (bottomStyle == SideStyle::Inverted);
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previousRichWidth = richWidth;
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if (bottomStyle == SideStyle::Inverted) {
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topStyle = SideStyle::Rounded;
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} else if (bottomStyle == SideStyle::Rounded) {
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topStyle = SideStyle::Inverted;
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} else {
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topStyle = SideStyle::Plain;
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}
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}
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}
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QVector<int> ServiceMessagePainter::countLineWidths(const Text &text, const QRect &textRect) {
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int linesCount = qMax(textRect.height() / st::msgServiceFont->height, 1);
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QVector<int> lineWidths;
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lineWidths.reserve(linesCount);
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text.countLineWidths(textRect.width(), &lineWidths);
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int minDelta = 2 * (historyServiceMsgRadius() + historyServiceMsgInvertedRadius() - historyServiceMsgInvertedShrink());
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for (int i = 0, count = lineWidths.size(); i < count; ++i) {
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int width = qMax(lineWidths.at(i), 0);
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if (i > 0) {
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int widthBefore = lineWidths.at(i - 1);
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if (width < widthBefore && width + minDelta > widthBefore) {
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width = widthBefore;
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}
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}
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if (i + 1 < count) {
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int widthAfter = lineWidths.at(i + 1);
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if (width < widthAfter && width + minDelta > widthAfter) {
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width = widthAfter;
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}
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}
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if (width > lineWidths.at(i)) {
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lineWidths[i] = width;
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if (i > 0) {
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int widthBefore = lineWidths.at(i - 1);
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if (widthBefore != width && widthBefore < width + minDelta && widthBefore + minDelta > width) {
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i -= 2;
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}
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}
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}
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}
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return lineWidths;
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}
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void serviceColorsUpdated() {
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if (serviceMessageStyle) {
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for (auto &corner : serviceMessageStyle->corners) {
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corner = QPixmap();
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}
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}
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}
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} // namespace HistoryLayout
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