From bd3408beb31294408ddb33d18de7542665788ed6 Mon Sep 17 00:00:00 2001
From: Dimitry Ivanov <di@noties.io>
Date: Mon, 1 Feb 2021 22:10:05 +0300
Subject: [PATCH] sample, imageSizeResolver usage

---
 app-sample/build.gradle                       |  4 --
 app-sample/samples.json                       | 12 ++++
 .../samples/image/ImageSizeResolverSample.kt  | 64 +++++++++++++++++++
 3 files changed, 76 insertions(+), 4 deletions(-)
 create mode 100644 app-sample/src/main/java/io/noties/markwon/app/samples/image/ImageSizeResolverSample.kt

diff --git a/app-sample/build.gradle b/app-sample/build.gradle
index 9019be25..bfd97997 100644
--- a/app-sample/build.gradle
+++ b/app-sample/build.gradle
@@ -99,10 +99,6 @@ android {
                 signingConfig signingConfigs.config
             }
         }
-    } else {
-        // it seems to be a bug in NDK handling, github fail to build the project with the:
-        // `com.android.builder.errors.EvalIssueException: No version of NDK matched the requested version 21.0.6113669. Versions available locally: 21.3.6528147`
-        ndkVersion '22.0.7026061'
     }
 }
 
diff --git a/app-sample/samples.json b/app-sample/samples.json
index b3bfbcca..5d665a9a 100644
--- a/app-sample/samples.json
+++ b/app-sample/samples.json
@@ -1,4 +1,16 @@
 [
+  {
+    "javaClassName": "io.noties.markwon.app.samples.image.ImageSizeResolverSample",
+    "id": "20210201165512",
+    "title": "ImageSizeResolver",
+    "description": "Custom `ImageSizeResolver` that treats dimension values as density-based (like `dp`, `dip` in resources)",
+    "artifacts": [
+      "CORE"
+    ],
+    "tags": [
+      "image"
+    ]
+  },
   {
     "javaClassName": "io.noties.markwon.app.samples.html.InspectHtmlTextSample",
     "id": "20210201140501",
diff --git a/app-sample/src/main/java/io/noties/markwon/app/samples/image/ImageSizeResolverSample.kt b/app-sample/src/main/java/io/noties/markwon/app/samples/image/ImageSizeResolverSample.kt
new file mode 100644
index 00000000..63e6172a
--- /dev/null
+++ b/app-sample/src/main/java/io/noties/markwon/app/samples/image/ImageSizeResolverSample.kt
@@ -0,0 +1,64 @@
+package io.noties.markwon.app.samples.image
+
+import android.content.res.Resources
+import io.noties.markwon.AbstractMarkwonPlugin
+import io.noties.markwon.Markwon
+import io.noties.markwon.MarkwonConfiguration
+import io.noties.markwon.app.sample.Tags
+import io.noties.markwon.app.sample.ui.MarkwonTextViewSample
+import io.noties.markwon.html.HtmlPlugin
+import io.noties.markwon.image.ImageSize
+import io.noties.markwon.image.ImageSizeResolverDef
+import io.noties.markwon.image.ImagesPlugin
+import io.noties.markwon.sample.annotations.MarkwonArtifact
+import io.noties.markwon.sample.annotations.MarkwonSampleInfo
+
+@MarkwonSampleInfo(
+  id = "20210201165512",
+  title = "ImageSizeResolver",
+  description = "Custom `ImageSizeResolver` that treats dimension values " +
+    "as density-based (like `dp`, `dip` in resources)",
+  artifacts = [MarkwonArtifact.CORE],
+  tags = [Tags.image]
+)
+class ImageSizeResolverSample : MarkwonTextViewSample() {
+  override fun render() {
+    val image = "https://github.com/dcurtis/markdown-mark/raw/master/png/208x128-solid.png"
+    val md = """
+      **150px x 150px**: <img src="$image" width="150px" height="150px" alt="150px x 150px" />
+      
+      **150 x 150**: <img src="$image" width="150" height="150" alt="150 x 150" />
+      
+      **no dimension**: <img src="$image" alt="no dimension" />
+      
+      **just width 150**: <img src="$image" width="150" alt="150" />
+    """.trimIndent()
+
+    val markwon = Markwon.builder(context)
+      .usePlugin(object : AbstractMarkwonPlugin() {
+        override fun configureConfiguration(builder: MarkwonConfiguration.Builder) {
+          builder.imageSizeResolver(DensityImageSizeResolver())
+        }
+      })
+      .usePlugin(ImagesPlugin.create())
+      .usePlugin(HtmlPlugin.create())
+      .build()
+
+    markwon.setMarkdown(textView, md)
+  }
+
+  class DensityImageSizeResolver : ImageSizeResolverDef() {
+
+    val density: Float by lazy(LazyThreadSafetyMode.NONE) {
+      Resources.getSystem().displayMetrics.density
+    }
+
+    override fun resolveAbsolute(dimension: ImageSize.Dimension, original: Int, textSize: Float): Int {
+      if (dimension.unit == null) {
+        // assume density pixels
+        return (dimension.value * density + 0.5F).toInt()
+      }
+      return super.resolveAbsolute(dimension, original, textSize)
+    }
+  }
+}
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