[New] SaveAs support image #304

2024-11-29 18:38:08 +08:00 · 2022-01-21 12:01:22 +08:00 · 2022-01-21 12:01:22 +08:00 · 45e4a57c20
commit 45e4a57c20
parent fb30be7bd3
13 changed files with 105 additions and 19 deletions
--- a/README.md
+++ b/README.md
@ -469,6 +469,27 @@ MiniExcel.SaveAs(path, value, configuration: new OpenXmlConfiguration() { AutoFi



+#### 10. Create Image
+
+```csharp
+var value = new[] {
+    new { Name="github",Image=File.ReadAllBytes(PathHelper.GetFile("images/github_logo.png"))},
+    new { Name="google",Image=File.ReadAllBytes(PathHelper.GetFile("images/google_logo.png"))},
+    new { Name="microsoft",Image=File.ReadAllBytes(PathHelper.GetFile("images/microsoft_logo.png"))},
+    new { Name="reddit",Image=File.ReadAllBytes(PathHelper.GetFile("images/reddit_logo.png"))},
+    new { Name="statck_overflow",Image=File.ReadAllBytes(PathHelper.GetFile("images/statck_overflow_logo.png"))},
+};
+MiniExcel.SaveAs(path, value);
+```
+
+![image](https://user-images.githubusercontent.com/12729184/150462383-ad9931b3-ed8d-4221-a1d6-66f799743433.png)
+
+
+
+
+
+
+


 ### Fill Data To Excel Template <a name="getstart3"></a>
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@ -473,6 +473,29 @@ MiniExcel.SaveAs(path, value, configuration: new OpenXmlConfiguration() { AutoFi



+#### 10. 图片生成
+
+```csharp
+var value = new[] {
+    new { Name="github",Image=File.ReadAllBytes(PathHelper.GetFile("images/github_logo.png"))},
+    new { Name="google",Image=File.ReadAllBytes(PathHelper.GetFile("images/google_logo.png"))},
+    new { Name="microsoft",Image=File.ReadAllBytes(PathHelper.GetFile("images/microsoft_logo.png"))},
+    new { Name="reddit",Image=File.ReadAllBytes(PathHelper.GetFile("images/reddit_logo.png"))},
+    new { Name="statck_overflow",Image=File.ReadAllBytes(PathHelper.GetFile("images/statck_overflow_logo.png"))},
+};
+MiniExcel.SaveAs(path, value);
+```
+
+![image](https://user-images.githubusercontent.com/12729184/150462383-ad9931b3-ed8d-4221-a1d6-66f799743433.png)
+
+
+
+
+
+
+
+
+


 ### 模板填充 Excel <a name="getstart3"></a>
--- a/README.zh-Hant.md
+++ b/README.zh-Hant.md
@ -479,6 +479,27 @@ MiniExcel.SaveAs(path, value, configuration: new OpenXmlConfiguration() { AutoFi



+#### 10. 圖片生成
+
+```csharp
+var value = new[] {
+    new { Name="github",Image=File.ReadAllBytes(PathHelper.GetFile("images/github_logo.png"))},
+    new { Name="google",Image=File.ReadAllBytes(PathHelper.GetFile("images/google_logo.png"))},
+    new { Name="microsoft",Image=File.ReadAllBytes(PathHelper.GetFile("images/microsoft_logo.png"))},
+    new { Name="reddit",Image=File.ReadAllBytes(PathHelper.GetFile("images/reddit_logo.png"))},
+    new { Name="statck_overflow",Image=File.ReadAllBytes(PathHelper.GetFile("images/statck_overflow_logo.png"))},
+};
+MiniExcel.SaveAs(path, value);
+```
+
+![image](https://user-images.githubusercontent.com/12729184/150462383-ad9931b3-ed8d-4221-a1d6-66f799743433.png)
+
+
+
+
+
+
+



--- a/docs/README.md
+++ b/docs/README.md
@ -16,6 +16,9 @@

 ---

+### 0.20.0 
+- [New] SaveAs support image #304
+
 ### 0.19.3-beta
 - [Fix]  Excelnumberformat 1.1.0 valid date expired (Valid from: 2018-04-10 08:00:00 to 2021-04-14 20:00:00) [link](https://github.com/andersnm/ExcelNumberFormat/issues/34)

--- a/docs/README.zh-CN.md
+++ b/docs/README.zh-CN.md
@ -23,6 +23,9 @@

 ---

+### 0.20.0 
+- [New] SaveAs 支持图片生成 #304
+
 ### 0.19.3-beta
 - [Fix]  Excelnumberformat 1.1.0 凭证过期 (Valid from: 2018-04-10 08:00:00 to 2021-04-14 20:00:00) [link](https://github.com/andersnm/ExcelNumberFormat/issues/34)

--- a/docs/README.zh-Hant.md
+++ b/docs/README.zh-Hant.md
@ -17,6 +17,8 @@

 ---

+### 0.20.0 
+- [New] SaveAs 支持圖片生成 #304

 ### 0.19.3-beta
 - [Fix]  Excelnumberformat 1.1.0 憑證過期 (Valid from: 2018-04-10 08:00:00 to 2021-04-14 20:00:00) [link](https://github.com/andersnm/ExcelNumberFormat/issues/34)
--- a/samples/images/google_logo.png
+++ b/samples/images/google_logo.png
--- a/samples/images/microsoft_logo.png
+++ b/samples/images/microsoft_logo.png
--- a/samples/images/reddit_logo.png
+++ b/samples/images/reddit_logo.png
--- a/samples/images/statck_overflow_logo.png
+++ b/samples/images/statck_overflow_logo.png
--- a/src/MiniExcel/OpenXml/ExcelOpenXmlSheetWriter.cs
+++ b/src/MiniExcel/OpenXml/ExcelOpenXmlSheetWriter.cs
@ -15,18 +15,20 @@ namespace MiniExcelLibs.OpenXml
 {
    internal class ImageDto
    {
-        public string ID { get; set; } = $"R{Guid.NewGuid().ToString("N")}".Substring(0,5);
+        public string ID { get; set; } = $"R{Guid.NewGuid().ToString("N")}";
        public string Extension { get; set; }
-        public string Path { get { return $"xl/media/image{ID}.{Extension}"; }}  
+        public string Path { get { return $"xl/media/image{ID}.{Extension}"; } }
        public string Path2 { get { return $"/xl/media/image{ID}.{Extension}"; } }
        public Byte[] Byte { get; set; }
+        public int RowIndex { get; set; }
+        public int CellIndex { get; set; }
    }
    internal class SheetDto
    {
        public string ID { get; set; } = $"R{Guid.NewGuid().ToString("N")}";
        public string Name { get; set; }
        public int SheetIdx { get; set; }
-        public string Path { get { return $"xl/worksheets/sheet{SheetIdx}.xml"; }  }
+        public string Path { get { return $"xl/worksheets/sheet{SheetIdx}.xml"; } }
    }
    internal class DrawingDto
    {
@ -49,7 +51,7 @@ namespace MiniExcelLibs.OpenXml
            this._configuration = configuration as OpenXmlConfiguration ?? OpenXmlConfiguration.DefaultConfig;
            this._printHeader = printHeader;
            this._value = value;
-            _sheets.Add(new SheetDto{ Name =sheetName, SheetIdx =1}); //TODO:remove
+            _sheets.Add(new SheetDto { Name = sheetName, SheetIdx = 1 }); //TODO:remove
        }

        public void SaveAs()
@ -344,7 +346,7 @@ namespace MiniExcelLibs.OpenXml
            }
        }

-        private void WriteCell(StreamWriter writer, int yIndex, int cellIndex, object value, ExcelCustomPropertyInfo p)
+        private void WriteCell(StreamWriter writer, int rowIndex, int cellIndex, object value, ExcelCustomPropertyInfo p)
        {
            var v = string.Empty;
            var t = "str";
@ -400,11 +402,14 @@ namespace MiniExcelLibs.OpenXml
                        {
                            //it can't insert to zip first to avoid cache image to memory
                            //because sheet xml is opening.. https://github.com/shps951023/MiniExcel/issues/304#issuecomment-1017031691
+                            //int rowIndex, int cellIndex
                            _images.Add(new ImageDto()
                            {
                                Extension = format.ToString(),
                                Byte = bytes,
-                            }); 
+                                RowIndex = rowIndex,
+                                CellIndex = cellIndex
+                            });
                        }
                    }
                }
@ -428,7 +433,7 @@ namespace MiniExcelLibs.OpenXml
                }
            }

-            var columname = ExcelOpenXmlUtils.ConvertXyToCell(cellIndex, yIndex);
+            var columname = ExcelOpenXmlUtils.ConvertXyToCell(cellIndex, rowIndex);
            if (v != null && (v.StartsWith(" ") || v.EndsWith(" "))) /*Prefix and suffix blank space will lost after SaveAs #294*/
                writer.Write($"<x:c r=\"{columname}\" {(t == null ? "" : $"t =\"{t}\"")} s=\"{s}\" xml:space=\"preserve\"><x:v>{v}</x:v></x:c>");
            else
@ -582,15 +587,15 @@ namespace MiniExcelLibs.OpenXml
                {
                    drawing.Append($@"<xdr:oneCellAnchor>
        <xdr:from>
-            <xdr:col>0</xdr:col>
+            <xdr:col>{i.CellIndex- 1/* why -1 : https://user-images.githubusercontent.com/12729184/150460189-f08ed939-44d4-44e1-be6e-9c533ece6be8.png*/}</xdr:col>
            <xdr:colOff>0</xdr:colOff>
-            <xdr:row>0</xdr:row>
+            <xdr:row>{i.RowIndex-1}</xdr:row>
            <xdr:rowOff>0</xdr:rowOff>
        </xdr:from>
        <xdr:ext cx=""609600"" cy=""190500"" />
        <xdr:pic>
            <xdr:nvPicPr>
-                <xdr:cNvPr id=""{_images.IndexOf(i)+1}"" descr="""" name=""2a3f9147-58ea-4a79-87da-7d6114c4877b"" />
+                <xdr:cNvPr id=""{_images.IndexOf(i) + 1}"" descr="""" name=""2a3f9147-58ea-4a79-87da-7d6114c4877b"" />
                <xdr:cNvPicPr>
                    <a:picLocks noChangeAspect=""1"" />
                </xdr:cNvPicPr>
@ -641,7 +646,7 @@ namespace MiniExcelLibs.OpenXml
                CreateZipEntry(@"xl/workbook.xml", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
                    _defaultWorkbookXml.Replace("{{sheets}}", workbookXml.ToString()));
                CreateZipEntry(@"xl/_rels/workbook.xml.rels", "",
-                    _defaultWorkbookXmlRels.Replace("{{sheets}}", workbookRelsXml.ToString()));             
+                    _defaultWorkbookXmlRels.Replace("{{sheets}}", workbookRelsXml.ToString()));
            }

            //[Content_Types].xml 
--- a/tests/MiniExcelTests/MiniExcelIssueTests.cs
+++ b/tests/MiniExcelTests/MiniExcelIssueTests.cs
@ -34,15 +34,23 @@ namespace MiniExcelLibs.Tests
        [Fact]
        public void TestIssue304()
        {
-            var imagePath = PathHelper.GetFile("images/github_logo.png");
-            var image = File.ReadAllBytes(imagePath);
-            var value = Enumerable.Range(1, 5).Select(s => new { image });
-            var path = PathHelper.GetRandomPath();
+            var path = PathHelper.GetTempFilePath();
+            var value = new[] {
+                new { Name="github",Image=File.ReadAllBytes(PathHelper.GetFile("images/github_logo.png"))},
+                new { Name="google",Image=File.ReadAllBytes(PathHelper.GetFile("images/google_logo.png"))},
+                new { Name="microsoft",Image=File.ReadAllBytes(PathHelper.GetFile("images/microsoft_logo.png"))},
+                new { Name="reddit",Image=File.ReadAllBytes(PathHelper.GetFile("images/reddit_logo.png"))},
+                new { Name="statck_overflow",Image=File.ReadAllBytes(PathHelper.GetFile("images/statck_overflow_logo.png"))},
+            };
            MiniExcel.SaveAs(path, value);

-
-            //TODO: Read from base 64 not work
-            //var image = Convert.FromBase64String("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQAAAAA3bvkkAAAAEElEQVR4nGJgAQAAAP//AwAABgAFV7+r1AAAAABJRU5ErkJggg==");
+            {
+                Assert.Contains("/xl/media/image", Helpers.GetZipFileContent(path, "xl/drawings/_rels/drawing1.xml.rels"));
+                Assert.Contains("ext cx=\"609600\" cy=\"190500\"", Helpers.GetZipFileContent(path, "xl/drawings/drawing1.xml"));
+                Assert.Contains("/xl/drawings/drawing1.xml", Helpers.GetZipFileContent(path, "[Content_Types].xml"));
+                Assert.Contains("drawing r:id=", Helpers.GetZipFileContent(path, "xl/worksheets/sheet1.xml"));
+                Assert.Contains("../drawings/drawing1.xml", Helpers.GetZipFileContent(path, "xl/worksheets/_rels/sheet1.xml.rels"));
+            }
        }

        /// <summary>
--- a/tests/MiniExcelTests/Utils/PathHelper.cs
+++ b/tests/MiniExcelTests/Utils/PathHelper.cs
@ -20,7 +20,7 @@
            return path;
        }

-        public static string GetRandomPath(string extension = "xlsx")
+        public static string GetTempFilePath(string extension = "xlsx")
        {
            return Path.GetTempPath() + Guid.NewGuid().ToString() + "." + extension;
        }