116 lines
5 KiB
C#
116 lines
5 KiB
C#
// Decompiled with JetBrains decompiler
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// Type: Terraria.GameContent.UI.Elements.UIScrollbar
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// Assembly: Terraria, Version=1.4.0.5, Culture=neutral, PublicKeyToken=null
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// MVID: 67F9E73E-0A81-4937-A22C-5515CD405A83
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// Assembly location: C:\Users\mikeyisbaeyt\Downloads\depotdownloader-2.4.5\depots\105601\6707058\Terraria.exe
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using ReLogic.Content;
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using Terraria.Audio;
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using Terraria.UI;
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namespace Terraria.GameContent.UI.Elements
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{
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public class UIScrollbar : UIElement
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{
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private float _viewPosition;
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private float _viewSize = 1f;
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private float _maxViewSize = 20f;
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private bool _isDragging;
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private bool _isHoveringOverHandle;
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private float _dragYOffset;
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private Asset<Texture2D> _texture;
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private Asset<Texture2D> _innerTexture;
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public float ViewPosition
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{
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get => this._viewPosition;
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set => this._viewPosition = MathHelper.Clamp(value, 0.0f, this._maxViewSize - this._viewSize);
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}
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public bool CanScroll => (double) this._maxViewSize != (double) this._viewSize;
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public UIScrollbar()
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{
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this.Width.Set(20f, 0.0f);
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this.MaxWidth.Set(20f, 0.0f);
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this._texture = Main.Assets.Request<Texture2D>("Images/UI/Scrollbar", (AssetRequestMode) 1);
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this._innerTexture = Main.Assets.Request<Texture2D>("Images/UI/ScrollbarInner", (AssetRequestMode) 1);
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this.PaddingTop = 5f;
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this.PaddingBottom = 5f;
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}
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public void SetView(float viewSize, float maxViewSize)
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{
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viewSize = MathHelper.Clamp(viewSize, 0.0f, maxViewSize);
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this._viewPosition = MathHelper.Clamp(this._viewPosition, 0.0f, maxViewSize - viewSize);
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this._viewSize = viewSize;
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this._maxViewSize = maxViewSize;
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}
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public float GetValue() => this._viewPosition;
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private Rectangle GetHandleRectangle()
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{
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CalculatedStyle innerDimensions = this.GetInnerDimensions();
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if ((double) this._maxViewSize == 0.0 && (double) this._viewSize == 0.0)
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{
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this._viewSize = 1f;
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this._maxViewSize = 1f;
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}
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return new Rectangle((int) innerDimensions.X, (int) ((double) innerDimensions.Y + (double) innerDimensions.Height * ((double) this._viewPosition / (double) this._maxViewSize)) - 3, 20, (int) ((double) innerDimensions.Height * ((double) this._viewSize / (double) this._maxViewSize)) + 7);
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}
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private void DrawBar(
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SpriteBatch spriteBatch,
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Texture2D texture,
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Rectangle dimensions,
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Color color)
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{
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spriteBatch.Draw(texture, new Rectangle(dimensions.X, dimensions.Y - 6, dimensions.Width, 6), new Rectangle?(new Rectangle(0, 0, texture.Width, 6)), color);
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spriteBatch.Draw(texture, new Rectangle(dimensions.X, dimensions.Y, dimensions.Width, dimensions.Height), new Rectangle?(new Rectangle(0, 6, texture.Width, 4)), color);
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spriteBatch.Draw(texture, new Rectangle(dimensions.X, dimensions.Y + dimensions.Height, dimensions.Width, 6), new Rectangle?(new Rectangle(0, texture.Height - 6, texture.Width, 6)), color);
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}
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protected override void DrawSelf(SpriteBatch spriteBatch)
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{
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CalculatedStyle dimensions = this.GetDimensions();
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CalculatedStyle innerDimensions = this.GetInnerDimensions();
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if (this._isDragging)
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this._viewPosition = MathHelper.Clamp((UserInterface.ActiveInstance.MousePosition.Y - innerDimensions.Y - this._dragYOffset) / innerDimensions.Height * this._maxViewSize, 0.0f, this._maxViewSize - this._viewSize);
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Rectangle handleRectangle = this.GetHandleRectangle();
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Vector2 mousePosition = UserInterface.ActiveInstance.MousePosition;
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int num = this._isHoveringOverHandle ? 1 : 0;
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this._isHoveringOverHandle = handleRectangle.Contains(new Point((int) mousePosition.X, (int) mousePosition.Y));
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if (num == 0 && this._isHoveringOverHandle && Main.hasFocus)
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SoundEngine.PlaySound(12);
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this.DrawBar(spriteBatch, this._texture.Value, dimensions.ToRectangle(), Color.White);
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this.DrawBar(spriteBatch, this._innerTexture.Value, handleRectangle, Color.White * (this._isDragging || this._isHoveringOverHandle ? 1f : 0.85f));
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}
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public override void MouseDown(UIMouseEvent evt)
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{
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base.MouseDown(evt);
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if (evt.Target != this)
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return;
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Rectangle handleRectangle = this.GetHandleRectangle();
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if (handleRectangle.Contains(new Point((int) evt.MousePosition.X, (int) evt.MousePosition.Y)))
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{
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this._isDragging = true;
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this._dragYOffset = evt.MousePosition.Y - (float) handleRectangle.Y;
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}
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else
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{
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CalculatedStyle innerDimensions = this.GetInnerDimensions();
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this._viewPosition = MathHelper.Clamp((UserInterface.ActiveInstance.MousePosition.Y - innerDimensions.Y - (float) (handleRectangle.Height >> 1)) / innerDimensions.Height * this._maxViewSize, 0.0f, this._maxViewSize - this._viewSize);
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}
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}
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public override void MouseUp(UIMouseEvent evt)
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{
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base.MouseUp(evt);
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this._isDragging = false;
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}
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}
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}
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