mirror of https://github.com/xemu-project/xemu.git
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
//
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// xemu User Interface
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//
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// Copyright (C) 2020-2022 Matt Borgerson
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//
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// This program 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 2 of the License, or
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// (at your option) any later version.
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//
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// This program 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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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#pragma once
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#include "common.hh"
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const ImVec2 EASE_VECTOR_DOWN = ImVec2(0, -25);
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const ImVec2 EASE_VECTOR_LEFT = ImVec2(25, 0);
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const ImVec2 EASE_VECTOR_RIGHT = ImVec2(-25, 0);
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enum AnimationState
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{
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PreEasingIn,
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EasingIn,
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Idle,
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EasingOut,
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PostEasingOut
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};
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// Step a value from 0 to 1 over some duration of time.
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class Animation
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{
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protected:
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float m_duration;
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float m_acc;
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public:
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Animation(float duration = 0);
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void Reset();
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void SetDuration(float duration);
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void Step();
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bool IsComplete();
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float GetLinearValue();
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void SetLinearValue(float t);
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float GetSinInterpolatedValue();
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};
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// Stateful animation sequence for easing in and out: 0->1->0
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class EasingAnimation
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{
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protected:
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AnimationState m_state;
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Animation m_animation;
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float m_duration_out;
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float m_duration_in;
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public:
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EasingAnimation(float ease_in_duration = 1.0, float ease_out_duration = 1.0);
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void EaseIn();
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void EaseIn(float duration);
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void EaseOut();
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void EaseOut(float duration);
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void Step();
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float GetLinearValue();
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float GetSinInterpolatedValue();
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bool IsAnimating();
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bool IsComplete();
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};
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