wehub-resource-sync
72 lines
2.6 KiB
C#
72 lines
2.6 KiB
C#
#nullable enable
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using ImGuiNET;
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using T3.Core.Utils;
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using T3.Editor.Gui.Styling;
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namespace T3.Editor.Gui.Interaction;
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internal static class ImageBackgroundFading
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{
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/// <summary>
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/// Computes fading out the image background below graph, when mouse pointer approaches left window border
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/// </summary>
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public static void HandleImageBackgroundFading(GraphImageBackground imageBackground, out float backgroundImageOpacity)
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{
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backgroundImageOpacity = ComputeFadeFactor(ImGui.GetMousePos().X- ImGui.GetWindowPos().X);
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if (!imageBackground.IsActive || backgroundImageOpacity != 0)
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return;
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if (ImGui.IsMouseClicked(ImGuiMouseButton.Left))
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{
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//imageBackground.ClearBackground();
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}
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}
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private const float ActiveBorderWidth = 50;
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private const float FadeOutWidth = 100;
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private static float ComputeFadeFactor(float distanceFromEdge)
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{
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return distanceFromEdge.RemapAndClamp(ActiveBorderWidth, ActiveBorderWidth + FadeOutWidth, 0, 1);
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}
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public static void HandleGraphFading(GraphImageBackground imageBackground, ImDrawListPtr drawList, out float graphOpacity)
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{
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graphOpacity = 1;
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if (!imageBackground.IsActive)
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{
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return;
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}
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if (!ImGui.IsWindowHovered())
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return;
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var windowPos = Vector2.Zero;
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var appWindowSize = ImGui.GetIO().DisplaySize;
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var mouseDistanceFromEdge = appWindowSize.X - ImGui.GetMousePos().X;
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graphOpacity = ComputeFadeFactor(mouseDistanceFromEdge);
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if (graphOpacity < 1)
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{
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var x = windowPos.X + appWindowSize.X - ActiveBorderWidth;
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drawList.AddRectFilled(new Vector2(x, windowPos.Y),
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new Vector2(x + 1, windowPos.Y + appWindowSize.Y),
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UiColors.BackgroundFull.Fade((1 - graphOpacity)) * 0.5f);
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drawList.AddRectFilled(new Vector2(x + 1, windowPos.Y),
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new Vector2(x + 2, windowPos.Y + appWindowSize.Y),
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UiColors.ForegroundFull.Fade((1 - graphOpacity)) * 0.5f);
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}
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if (graphOpacity <= 0 && !ImGui.IsAnyItemActive() && ImGui.IsMouseClicked(ImGuiMouseButton.Left))
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{
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imageBackground.HasInteractionFocus = !imageBackground.HasInteractionFocus;
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}
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if (imageBackground.HasInteractionFocus)
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{
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graphOpacity *= 0.15f;
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}
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}
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} |