Add a proper build system

Also lowers the minimum required Qt version to 5.5.

QtGui/QtPaintDevice.mm

@@ -1,106 +0,0 @@
-/*
- * Copyright (c) 2017, Jonathan Schleifer <js@heap.zone>
- *
- * https://heap.zone/git/objqt.git
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice is present in all copies.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import "QtPaintDevice.h"
-
-#include <QObject>
-
-using ObjQt::toQt;
-
-@implementation QtPaintDevice
-@dynamic qObject;
-
-- (QPaintDevice*)qPaintDevice
-{
-	return dynamic_cast<QPaintDevice*>([self qObject]);
-}
-
-- (int)colorCount
-{
-	return toQt(self)->colorCount();
-}
-
-- (int)depth
-{
-	return toQt(self)->depth();
-}
-
-- (int)devicePixelRatio
-{
-	return toQt(self)->devicePixelRatio();
-}
-
-- (double)devicePixelRatioF
-{
-	return toQt(self)->devicePixelRatioF();
-}
-
-- (int)height
-{
-	return toQt(self)->height();
-}
-
-- (int)heightMM
-{
-	return toQt(self)->heightMM();
-}
-
-- (int)logicalDPIX
-{
-	return toQt(self)->logicalDpiX();
-}
-
-- (int)logicalDPIY
-{
-	return toQt(self)->logicalDpiY();
-}
-
-- (QPaintEngine*)paintEngine
-{
-	return toQt(self)->paintEngine();
-}
-
-- (bool)paintingActive
-{
-	return toQt(self)->paintingActive();
-}
-
-- (int)physicalDPIX
-{
-	return toQt(self)->physicalDpiX();
-}
-
-- (int)physicalDPIY
-{
-	return toQt(self)->physicalDpiY();
-}
-
-- (int)width
-{
-	return toQt(self)->width();
-}
-
-- (int)widthMM
-{
-	return toQt(self)->widthMM();
-}
-@end