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#import "AppViewBase.h"
#include "NativeAppBase.hpp"
#include <memory>
#include <string>
@interface AppViewBase ()
{
std::unique_ptr<Diligent::NativeAppBase> _theApp;
NSInteger _preferredFramesPerSecond;
CADisplayLink* _displayLink;
std::string _error;
}
@end
@implementation AppViewBase
- (void) initApp:(int)deviceType;
{
try
{
_theApp.reset(Diligent::CreateApplication());
// Init our renderer.
_theApp->Initialize(deviceType, (__bridge void*)self.layer);
}
catch(std::runtime_error &err)
{
_error = err.what();
_theApp.reset();
}
[super stopAnimation];
_preferredFramesPerSecond = 60;
_displayLink = nil;
}
- (void) render
{
if(_theApp)
{
_theApp->Update();
_theApp->Render();
_theApp->Present();
}
}
- (void) layoutSubviews
{
auto bounds = [self.layer bounds];
auto scale = [self.layer contentsScale];
if(_theApp)
{
_theApp->WindowResize(bounds.size.width * scale, bounds.size.height * scale);
}
}
- (NSInteger) preferredFramesPerSecond
{
return _preferredFramesPerSecond;
}
- (void) setPreferredFramesPerSecond:(NSInteger)preferredFPS
{
if (preferredFPS >= 1)
{
_preferredFramesPerSecond = preferredFPS;
if (self.animating)
{
[self stopAnimation];
[self startAnimation];
}
}
}
- (void) startAnimation
{
if (!self.animating)
{
// Create the display link and set the callback to our drawView method
_displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(drawView:)];
// Set it to our _animationFrameInterval
[_displayLink setPreferredFramesPerSecond:_preferredFramesPerSecond];
// Have the display link run on the default run loop (and the main thread)
[_displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
[super startAnimation];
}
}
- (void)stopAnimation
{
if (self.animating)
{
[_displayLink invalidate];
_displayLink = nil;
[super stopAnimation];
}
}
- (void)terminate
{
_theApp.reset();
[super terminate];
}
- (NSString*)getError
{
return _error.empty() ? nil : [NSString stringWithFormat:@"%s", _error.c_str()];
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches
withEvent:(UIEvent *)event;
{
UITouch *firstTouch = touches.allObjects[0];
CGPoint location = [firstTouch locationInView:self];
if(_theApp)
{
_theApp->OnTouchBegan(location.x, location.y);
}
}
- (void)touchesMoved:(NSSet<UITouch *> *)touches
withEvent:(UIEvent *)event;
{
UITouch *firstTouch = touches.allObjects[0];
CGPoint location = [firstTouch locationInView:self];
if(_theApp)
{
_theApp->OnTouchMoved(location.x, location.y);
}
}
- (void)touchesEnded:(NSSet<UITouch *> *)touches
withEvent:(UIEvent *)event;
{
UITouch *firstTouch = touches.allObjects[0];
CGPoint location = [firstTouch locationInView:self];
if(_theApp)
{
_theApp->OnTouchEnded(location.x, location.y);
}
}
- (void)touchesCancelled:(NSSet<UITouch *> *)touches
withEvent:(UIEvent *)event;
{
UITouch *firstTouch = touches.allObjects[0];
CGPoint location = [firstTouch locationInView:self];
if(_theApp)
{
_theApp->OnTouchEnded(location.x, location.y);
}
}
@end
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