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#pragma once
#include <map>
#include "base.h"
#include "application.h"
#include "timer.h"
#include "builder.h"
namespace cru::ui::animations
{
class Animation;
class AnimationManager : public Object
{
public:
static AnimationManager* GetInstance()
{
return Application::GetInstance()->GetAnimationManager();
}
public:
AnimationManager();
AnimationManager(const AnimationManager& other) = delete;
AnimationManager(AnimationManager&& other) = delete;
AnimationManager& operator=(const AnimationManager& other) = delete;
AnimationManager& operator=(AnimationManager&& other) = delete;
~AnimationManager() override;
void AddAnimation(Animation* animation);
void RemoveAnimation(Animation* animation);
private:
std::map<String, Animation*> animations_;
std::shared_ptr<ITimerTask> timer_;
std::shared_ptr<Action<>> timer_action_;
};
class Animation : public Object
{
friend class AnimationManager;
protected:
Animation(
String tag,
double duration,
const Vector<std::shared_ptr<Action<Animation*, double>>>& step_handlers,
const Vector<std::shared_ptr<Action<Animation*>>>& start_handlers,
const Vector<std::shared_ptr<Action<Animation*>>>& finish_handlers,
const Vector<std::shared_ptr<Action<Animation*>>>& cancel_handlers
);
public:
Animation(const Animation& other) = delete;
Animation(Animation&& other) = delete;
Animation& operator=(const Animation& other) = delete;
Animation& operator=(Animation&& other) = delete;
~Animation() override = default; // The animation will never destroy by users.
bool Step(double time);
void Cancel();
String GetTag() const
{
return tag_;
}
private:
const String tag_;
const double duration_;
Vector<std::shared_ptr<Action<Animation*, double>>> step_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> start_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> finish_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> cancel_handlers_;
double current_time_ = 0;
public:
class Builder : public OneTimeBuilder<Animation>
{
public:
Builder(String tag, const double duration)
: tag(std::move(tag)), duration(duration)
{
}
String tag;
double duration;
Builder& AddStepHandler(Action<Animation*, double>&& handler)
{
if (IsValid())
step_handlers_.push_back(std::make_shared<Action<Animation*, double>>(std::move(handler)));
return *this;
}
Builder& AddStartHandler(Action<Animation*>&& handler)
{
if (IsValid())
start_handlers_.push_back(std::make_shared<Action<Animation*>>(std::move(handler)));
return *this;
}
Builder& AddFinishHandler(Action<Animation*>&& handler)
{
if (IsValid())
finish_handlers_.push_back(std::make_shared<Action<Animation*>>(std::move(handler)));
return *this;
}
Builder& AddCancelHandler(Action<Animation*>&& handler)
{
if (IsValid())
cancel_handlers_.push_back(std::make_shared<Action<Animation*>>(std::move(handler)));
return *this;
}
protected:
Animation* OnCreate() override
{
return new Animation(std::move(tag), duration, step_handlers_, start_handlers_, finish_handlers_, cancel_handlers_);
}
private:
Vector<std::shared_ptr<Action<Animation*, double>>> step_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> start_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> finish_handlers_;
Vector<std::shared_ptr<Action<Animation*>>> cancel_handlers_;
};
};
}
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