10 Screenshot

置顶 UnityEditor UnityEditor

Created At : 2020-05-11 11:41

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使用Editor编写一个截屏得window面板

使用Editor编写一个截屏得window面板

1:先理解一些手机概念的定义.手机参数概念
手机5.2英寸的定义是:手机的对角线是5.2英寸,1英寸（inch）=2.54厘米（cm）,计算方式就是勾股定理,算斜边的长度就是卖手机的时候所说的手机尺寸.
手机分辨率是1920PX*1080PX:PX的意思就是像素,可以默认为像素是分辨率,手机的点,线,面都是由一个个的像素表现的,可以理解为一个像素是一个小网格,这个含义表示,在手机的竖向上面有1920个像素,在手机的横向上面有1080个像素.
屏幕像素密度:即在一个对角线长度为1英寸的正方形内所拥有的像素数
2:如果需要查看camera/px/size/unit 摄像机,摄像机的size,像素,单位,x,y,width,height的区别,百度一下.RenderTexture概念1,RenderTexture概念2,RenderTexture概念3

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

public class ScreenshotWindow : EditorWindow
{
int resWidth = Screen.width * 4;
int resHeight = Screen.height * 4;

public Camera currentCamera;

int scale = 1;

string path = "";

bool showPreview = true;

RenderTexture renderTexture;

bool isTransparent = false;

float lastTime;

string lastPath;


[MenuItem("Tools/截屏")]
public static void ShowScreenshotWindow()
{
    EditorWindow ew = GetWindow<ScreenshotWindow>();
    ew.autoRepaintOnSceneChange = true;//窗口发生变化时,自动重绘
    ew.titleContent = new GUIContent("截屏");
}


private void OnGUI()
{
    {
        EditorGUILayout.LabelField("分辨率", EditorStyles.boldLabel);
        resWidth = EditorGUILayout.IntField("截取宽度:", resWidth);
        resHeight = EditorGUILayout.IntField("截取高度:", resHeight);
        EditorGUILayout.Space();
        scale = EditorGUILayout.IntSlider("缩放", scale, 1, 15);
        //显示帮助信息
        EditorGUILayout.HelpBox("截屏的默认模式是裁剪-所以选择一个合适的宽度和高度。比例是一个因素，以倍增或扩大渲染而不失去质量。", MessageType.None);
        EditorGUILayout.Space();
    }

    {
        GUILayout.Label("Save Path", EditorStyles.boldLabel);

        EditorGUILayout.BeginHorizontal();
        EditorGUILayout.TextField(path, GUILayout.MaxWidth(500));
        if (GUILayout.Button("选择文件"))
        {
            path = EditorUtility.SaveFolderPanel("Path to Save Images", path, Application.dataPath);
        }
        EditorGUILayout.EndHorizontal();
        //显示帮助信息
        EditorGUILayout.HelpBox("选择文件夹保存截取的图片", MessageType.None);
        EditorGUILayout.Space();
    }
    {
        GUILayout.Label("Select Camera", EditorStyles.boldLabel);
        currentCamera = EditorGUILayout.ObjectField("选择摄像机", currentCamera, typeof(Camera), true) as Camera;
        if (currentCamera==null)
        {
            currentCamera = Camera.main;
        }
        isTransparent = EditorGUILayout.Toggle("是否需要透明背景", isTransparent);
        EditorGUILayout.HelpBox("选择要捕捉渲染的摄像机,可以使用透明选项使背景透明.", MessageType.None);
        EditorGUILayout.Space();
    }
    {
        EditorGUILayout.BeginHorizontal();
        if (GUILayout.Button("当前屏幕分辨率"))
        {
            resWidth = (int)Handles.GetMainGameViewSize().x;
            resHeight = (int)Handles.GetMainGameViewSize().y;
        }

        if (GUILayout.Button("默认屏幕分辨率"))
        {
            resHeight = 1440;
            resWidth = 2560;
            scale = 1;
        }

        EditorGUILayout.EndHorizontal();
        EditorGUILayout.LabelField("截图将于 " + resWidth * scale + " x " + resHeight * scale + " 像素拍摄", EditorStyles.boldLabel);
        EditorGUILayout.Space();
    }
    {
        if (GUILayout.Button("截屏",GUILayout.MinHeight(40)))
        {
            TakeScreenshot();
        }
        EditorGUILayout.BeginHorizontal();
        if (GUILayout.Button("Open Last Screenshot", GUILayout.MaxWidth(160), GUILayout.MinHeight(40)))
        {
            if (lastPath != "")
            {
                Application.OpenURL("file://" + lastPath);
            }
        }
        if (GUILayout.Button("Open Folder", GUILayout.MaxWidth(100), GUILayout.MinHeight(40)))
        {

            Application.OpenURL("file://" + path);
        }
        if (GUILayout.Button("More Assets", GUILayout.MaxWidth(100), GUILayout.MinHeight(40)))
        {
            Application.OpenURL("https://www.assetstore.unity3d.com/en/#!/publisher/5951");
        }
        EditorGUILayout.EndHorizontal();
    }

}

private void TakeScreenshot()
{
    int resWidthN = resWidth * scale;
    int resHeightN = resHeight * scale;
    RenderTexture rt = new RenderTexture(resWidth, resHeight, 24);
    currentCamera.targetTexture = rt;
    TextureFormat tf = TextureFormat.RGB24;
    if (isTransparent)
    {
        tf = TextureFormat.RGBA32;
    }
    Texture2D screenShot = new Texture2D(resWidthN, resHeightN, tf, false);
    currentCamera.Render();//将屏幕渲染到targetTexture里面
    RenderTexture.active = rt;//当前活跃的RenderTexture
    //将GPU中的FrameBufferObject可读对象拷贝到CPU中存储为一个buffer,然后读取到Texture2D中
    screenShot.ReadPixels(new Rect(0, 0, resWidthN, resHeightN), 0, 0);
    currentCamera.targetTexture = null;
    RenderTexture.active = null;
    byte[] bytes = screenShot.EncodeToPNG();//编码成PNG
    lastPath = string.Format("{0}/screen_{1}x{2}_{3}.png", path, resWidthN, resHeightN, System.DateTime.Now.ToString("yyyy-mm-dd_HH-mm-ss"));
    System.IO.File.WriteAllBytes(lastPath, bytes);
    Application.OpenURL(lastPath);//打开图片
    AssetDatabase.Refresh(); 
}

}

* 4:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.IO;

public class ScriptToText : EditorWindow
{
[MenuItem(“Tools/脚本与文件互转”)]
static void ShowScriptToTextWindow()
{
GetWindow(“脚本与文件互转”);
}

private void OnGUI()
{
    //整个窗口为水平布局
    GUILayout.BeginHorizontal();
    DrawLeft();
    //GUILayout.Label("|", GUILayout.MinHeight(10000));
    DrawRight();
    GUILayout.EndHorizontal();
}

private string scriptsContext = "";
private Vector2 scrollposition;

/// <summary>
/// 绘制左边的区域
/// </summary>
private void DrawLeft()
{
    //局部为垂直窗口区域
    GUILayout.BeginVertical();
    GUILayout.Label("显示脚本中的所有内容:");
    //开始滑动的区域
    scrollposition = GUILayout.BeginScrollView(scrollposition);

    //绘制文本
    scriptsContext = GUILayout.TextArea(scriptsContext, GUILayout.ExpandHeight(true));//动态高度,会占满

    GUILayout.EndScrollView();
    GUILayout.EndVertical();
}

//文件资源对象
TextAsset textAssetObject;
//脚本资源对象
TextAsset scriptAssetObject;

//文件保存的路径
string saveFilePath = "";
//脚本保存的路径
string scriptFilePath = "";

//绘制2D图像
Texture2D texture2D;

private void DrawRight()
{
    //局部为垂直窗口区域
    GUILayout.BeginVertical();
    {

        textAssetObject = (TextAsset)EditorGUILayout.ObjectField("script转txt", textAssetObject, typeof(TextAsset), true);
        EditorGUILayout.LabelField("被保存在    " + saveFilePath + "/" + "    路径下面");
        //绘制Text字段，用户获取用户指定的路径
        if (GUILayout.Button("选择txt保存的路径"))
        {
            saveFilePath = EditorUtility.SaveFolderPanel("Path to Save Images", saveFilePath, Application.dataPath);
        }
        if (GUILayout.Button("script保存为txt"))
        {
            //执行这个方法
            SaveFile(".txt");
        }
        if (textAssetObject!=null && !textAssetObject.text.Equals(""))
        {
            scriptsContext = textAssetObject.text;
        }
    }
    GUILayout.Space(40);
    {

        scriptAssetObject = (TextAsset)EditorGUILayout.ObjectField("txt转script", scriptAssetObject, typeof(TextAsset), true);
        EditorGUILayout.LabelField("被保存在    " + saveFilePath + "/" + "    路径下面");
        //绘制Text字段，用户获取用户指定的路径
        if (GUILayout.Button("选择脚本保存的路径"))
        {
            saveFilePath = EditorUtility.SaveFolderPanel("Path to Save Images", saveFilePath, Application.dataPath);
        }
        if (GUILayout.Button("txt保存为script"))
        {
            //执行这个方法
            SaveFile(".cs");
        }
        if (scriptAssetObject != null && !scriptAssetObject.text.Equals(""))
        {
            scriptsContext = textAssetObject.text;
        }
    }
    GUILayout.Space(40);
    {
        Texture2D texture2D = AssetDatabase.LoadAssetAtPath("Assets/Texture/Battleground_bg.png", typeof(Texture2D)) as Texture2D;
        GUI.DrawTexture(GUILayoutUtility.GetRect(500, 300), texture2D);
    }
    GUILayout.EndVertical();
}

//默认文件保存路径
private const string defaultFilePath = "Assets/TextFiles/";

//默认脚本保存路径
private const string defaultScriptPath = "Assets/Scripts/";

/// <summary>
/// 脚本转换为文本
/// </summary>
void SaveFile(string suffix)
{
    string path = defaultFilePath;
    if (!saveFilePath.Equals(""))
    {
        path = saveFilePath;
    }
    if (!Directory.Exists(path))
    {
        Directory.CreateDirectory(path);
    }
    //写入文件
    StreamWriter sw = new StreamWriter(defaultFilePath + textAssetObject.name + suffix);
    sw.Write(textAssetObject.text);
    sw.Close();
    AssetDatabase.Refresh();
}

}

```

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