UnityWindowsFileDrag-Drop/ImageExample.cs at master · Bunny83/UnityWindowsFileDrag-Drop · GitHub

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usingSystem.Collections.Generic;
usingUnityEngine;
usingSystem.Linq;
usingB83.Win32;


publicclassImageExample:MonoBehaviour
{
Texture2D[]textures=newTexture2D[6];
DropInfodropInfo=null;
classDropInfo
{
publicstringfile;
publicVector2pos;
}
voidOnEnable()
{
UnityDragAndDropHook.InstallHook();
UnityDragAndDropHook.OnDroppedFiles+=OnFiles;

}
voidOnDisable()
{
UnityDragAndDropHook.UninstallHook();
}

voidOnFiles(List<string>aFiles,POINTaPos)
{
stringfile="";
// scan through dropped files and filter out supported image types
foreach(varfinaFiles)
{
varfi=newSystem.IO.FileInfo(f);
varext=fi.Extension.ToLower();
if(ext==".png"||ext==".jpg"||ext==".jpeg")
{
file=f;
break;
}
}
// If the user dropped a supported file, create a DropInfo
if(file!="")
{
varinfo=newDropInfo
{
file=file,
pos=newVector2(aPos.x,aPos.y)
};
dropInfo=info;
}
}

voidLoadImage(intaIndex,DropInfoaInfo)
{
if(aInfo==null)
return;
// get the GUI rect of the last Label / box
varrect=GUILayoutUtility.GetLastRect();
// check if the drop position is inside that rect
if(rect.Contains(aInfo.pos))
{
vardata=System.IO.File.ReadAllBytes(aInfo.file);
vartex=newTexture2D(1,1);
tex.LoadImage(data);
if(textures[aIndex]!=null)
Destroy(textures[aIndex]);
textures[aIndex]=tex;
}
}

privatevoidOnGUI()
{
DropInfotmp=null;
if(Event.current.type==EventType.Repaint&&dropInfo!=null)
{
tmp=dropInfo;
dropInfo=null;
}
GUILayout.BeginHorizontal();
for(inti=0;i<3;i++)
{
if(textures[i]!=null)
GUILayout.Label(textures[i],GUILayout.Width(200),GUILayout.Height(200));
else
GUILayout.Box("Drag image here",GUILayout.Width(200),GUILayout.Height(200));
LoadImage(i,tmp);
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
for(inti=3;i<6;i++)
{
if(textures[i]!=null)
GUILayout.Label(textures[i],GUILayout.Width(200),GUILayout.Height(200));
else
GUILayout.Box("Drag image here",GUILayout.Width(200),GUILayout.Height(200));
LoadImage(i,tmp);
}
GUILayout.EndHorizontal();
}
}