109 lines
3.5 KiB
C#
109 lines
3.5 KiB
C#
using System.Numerics;
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using Dalamud.Interface;
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using Dalamud.Interface.Internal;
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using Dalamud.Interface.Utility;
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using ImGuiNET;
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using Screenie.Util;
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namespace Screenie.Ui;
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internal class Viewer : IDrawable {
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private Plugin Plugin { get; }
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private Guid Id { get; } = Guid.NewGuid();
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private IDalamudTextureWrap? Image { get; set; }
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private Exception? Error { get; set; }
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private bool _disposed;
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private bool _visible = true;
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internal string ImagePath { get; }
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internal Vector2? DotPosition { get; set; }
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internal Viewer(Plugin plugin, string path) {
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this.Plugin = plugin;
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this.ImagePath = path;
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Task.Factory.StartNew(async () => {
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try {
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var bytes = await File.ReadAllBytesAsync(this.ImagePath);
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this.Image = await ImageHelper.LoadImageAsync(this.Plugin.Interface.UiBuilder, bytes);
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} catch (Exception ex) {
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this.Error = ex;
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Plugin.Log.Warning(ex, $"Failed to load image at {this.ImagePath}");
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}
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});
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}
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public void Dispose() {
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if (this._disposed) {
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return;
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}
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this._disposed = true;
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// if (this.Image != null) {
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// this.Plugin.Framework.RunOnTick(this.Image.Dispose);
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// }
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this.Image?.Dispose();
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}
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public DrawStatus Draw() {
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if (!this._visible) {
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return DrawStatus.Finished;
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}
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ImGui.PushID($"viewer-{this.ImagePath}-{this.Id}");
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using var popId = new OnDispose(ImGui.PopID);
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using var end = new OnDispose(ImGui.End);
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if (!ImGui.Begin($"View {Path.GetFileName(this.ImagePath)}", ref this._visible, ImGuiWindowFlags.NoSavedSettings)) {
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return DrawStatus.Continuing;
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}
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var viewport = ImGui.GetWindowViewport();
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var viewportSize = viewport.Size;
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ImGui.SetWindowSize(viewportSize * new Vector2(0.20f), ImGuiCond.Appearing);
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if (this.Error != null) {
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ImGuiHelpers.CenteredText("An error ocurred loading the image.");
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ImGui.PushFont(UiBuilder.MonoFont);
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using var popFont = new OnDispose(ImGui.PopFont);
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ImGui.TextUnformatted(this.Error.Message);
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}
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if (this.Image != null) {
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var beforeImage = ImGui.GetCursorScreenPos();
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var avail = ImGui.GetContentRegionAvail();
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var imageSize = this.Image.Size;
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var constrainedX = avail.X < imageSize.X;
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var constrainedY = avail.Y < imageSize.Y;
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var sizeToUse = imageSize;
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if (constrainedX || constrainedY) {
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// var dividend = imageSize / avail;
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// var inv = Vector2.One / dividend;
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// scale the image based on the more-constrained dimension
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// var ratio = dividend.X > dividend.Y
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// ? inv.X // X is more constrained
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// : inv.Y; // Y is more constrained
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var dividend = avail / imageSize;
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// scale the image based on the more-constrained dimension
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var ratio = dividend.Y > dividend.X
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? dividend.X // X is more constrained
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: dividend.Y; // Y is more constrained
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sizeToUse = new Vector2(
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imageSize.X * ratio,
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imageSize.Y * ratio
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);
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}
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ImGui.Image(this.Image.ImGuiHandle, sizeToUse);
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}
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return DrawStatus.Continuing;
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}
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}
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