ml
41 lines
1.3 KiB
Go
41 lines
1.3 KiB
Go
package render
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import (
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"math"
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"github.com/inkyblackness/imgui-go/v3"
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"github.com/inkyblackness/hacked/editor/graphics"
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"github.com/inkyblackness/hacked/ss1/resource"
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)
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// TextureImage renders an image centered and fitted within the given size.
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func TextureImage(label string, cache *graphics.TextureCache, key resource.Key, size imgui.Vec2) {
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textureID := TextureIDForBitmapTexture(key)
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imgui.PushStyleColor(imgui.StyleColorChildBg, imgui.Vec4{X: 0, Y: 0, Z: 0, W: 1})
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imgui.PushStyleVarVec2(imgui.StyleVarWindowPadding, imgui.Vec2{X: 0, Y: 0})
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if imgui.BeginChildV(label, size, false,
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imgui.WindowFlagsNoNav|imgui.WindowFlagsNoInputs|imgui.WindowFlagsNoScrollWithMouse|
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imgui.WindowFlagsNoScrollbar) {
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texture, err := cache.Texture(key)
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if err == nil {
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var uv imgui.Vec2
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uv.X, uv.Y = texture.UV()
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width, height := texture.Size()
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scaleFactor := float32(math.Min(float64(size.X/width), float64(size.Y/height)))
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imageSize := imgui.Vec2{X: width * scaleFactor, Y: height * scaleFactor}
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bufferSize := imgui.Vec2{X: (size.X - imageSize.X) / 2, Y: (size.Y - imageSize.Y) / 2}
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imgui.SetCursorPos(bufferSize)
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imgui.ImageV(textureID, imageSize, imgui.Vec2{}, uv,
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imgui.Vec4{X: 1, Y: 1, Z: 1, W: 1}, imgui.Vec4{X: 0, Y: 0, Z: 0, W: 0})
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}
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}
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imgui.EndChild()
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imgui.PopStyleVar()
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imgui.PopStyleColor()
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}
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