From 2f7c1cca7803ed3ef20d8da4261d8d77aa04f9a9 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Wed, 4 Feb 2015 10:59:20 +0300
Subject: [PATCH] fixed bg cache for tiled background, linux version background
 supported

---
 Telegram/SourceFiles/app.cpp        | 2 +-
 Telegram/SourceFiles/mainwidget.cpp | 2 +-
 Telegram/Telegram.pro               | 2 ++
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/app.cpp b/Telegram/SourceFiles/app.cpp
index 330a60f93..9e3e5d416 100644
--- a/Telegram/SourceFiles/app.cpp
+++ b/Telegram/SourceFiles/app.cpp
@@ -2272,7 +2272,7 @@ namespace App {
 		componentsScroll[maxtomin[1]] = qMin(uint64(float64(componentsScroll[maxtomin[1]]) * maxScroll / float64(componentsScroll[maxtomin[0]])), 0xFFULL);
 		componentsScroll[maxtomin[0]] = qMin(maxScroll, 0xFFULL);
 
-		if (max > qRound(0.2 * 0xFF)) { // brightness greater than 20%
+        if (max > uint64(qRound(0.2 * 0xFF))) { // brightness greater than 20%
 			max -= qRound(0.2 * 0xFF);
 		} else {
 			max = 0;
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 0b5e4cdfc..019d05b80 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -720,7 +720,7 @@ void MainWidget::onCacheBackground() {
 	const QPixmap &bg(*cChatBackground());
 	if (cTileBackground()) {
 		QImage result(_willCacheFor.width() * cIntRetinaFactor(), _willCacheFor.height() * cIntRetinaFactor(), QImage::Format_RGB32);
-		result.setDevicePixelRatio(2);
+        result.setDevicePixelRatio(cRetinaFactor());
 		{
 			QPainter p(&result);
 			int left = 0, top = 0, right = _willCacheFor.width(), bottom = _willCacheFor.height();
diff --git a/Telegram/Telegram.pro b/Telegram/Telegram.pro
index c490ddc41..b839fa013 100644
--- a/Telegram/Telegram.pro
+++ b/Telegram/Telegram.pro
@@ -137,6 +137,7 @@ SOURCES += \
     ./SourceFiles/boxes/aboutbox.cpp \
     ./SourceFiles/boxes/addcontactbox.cpp \
     ./SourceFiles/boxes/addparticipantbox.cpp \
+    ./SourceFiles/boxes/backgroundbox.cpp \
     ./SourceFiles/boxes/confirmbox.cpp \
     ./SourceFiles/boxes/connectionbox.cpp \
     ./SourceFiles/boxes/contactsbox.cpp \
@@ -221,6 +222,7 @@ HEADERS += \
     ./SourceFiles/boxes/aboutbox.h \
     ./SourceFiles/boxes/addcontactbox.h \
     ./SourceFiles/boxes/addparticipantbox.h \
+    ./SourceFiles/boxes/backgroundbox.h \
     ./SourceFiles/boxes/confirmbox.h \
     ./SourceFiles/boxes/connectionbox.h \
     ./SourceFiles/boxes/contactsbox.h \