fpspreadsheet: Finalize image and headerfooter_image demos. Update readme in other demos folder.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@4547 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpspreadsheet/examples/other/demo_write_headerfooter_images.lpr

@@ -19,23 +19,23 @@ const
   image3 = '../../images/components/TSCELLEDIT.png';
 
 begin
+  Writeln('Starting program "demo_write_headerfooter_images"...');
   // Create the spreadsheet
   MyWorkbook := TsWorkbook.Create;
-  MyWorkbook.Options := [boFileStream];
-
+  try
     MyWorksheet := MyWorkbook.AddWorksheet('Sheet 1');
     MyWorksheet.WriteText(0, 0, 'The header of this sheet contains an image');
-  MyWorksheet.Pagelayout.TopMargin := 30;
-  MyWorksheet.PageLayout.HeaderMargin := 10; //25;
+    MyWorksheet.PageLayout.HeaderMargin := 10;
+    MyWorksheet.Pagelayout.TopMargin := 30;     // the header is 20 mm high
     MyWorksheet.PageLayout.Headers[HEADER_FOOTER_INDEX_ALL] := '&CHeader with image!';
-//  MyWorksheet.PageLayout.AddHeaderImage(HEADER_FOOTER_INDEX_ALL, hfsLeft, image1);
+    MyWorksheet.PageLayout.AddHeaderImage(HEADER_FOOTER_INDEX_ALL, hfsLeft, image1);
 
     MyWorksheet := MyWorkbook.AddWorksheet('Sheet 2');
     MyWorksheet.WriteText(0, 0, 'The footer of this sheet contains an image');
     MyWorksheet.PageLayout.Footers[HEADER_FOOTER_INDEX_ALL] := '&CFooter with image!';
-//  MyWorksheet.PageLayout.AddFooterImage(HEADER_FOOTER_INDEX_ALL, hfsRight, image2);
+    MyWorksheet.PageLayout.AddFooterImage(HEADER_FOOTER_INDEX_ALL, hfsRight, image2);
 
-  // Save the spreadsheet to a file
+    // Save the spreadsheet to files
     MyDir := ExtractFilePath(ParamStr(0));
     MyWorkbook.WriteToFile(MyDir + 'hfimg.xlsx', sfOOXML, true);
     MyWorkbook.WriteToFile(MyDir + 'hfimg.ods', sfOpenDocument, true);
@@ -44,10 +44,17 @@ begin
 //  MyWorkbook.WriteToFile(MyDir + 'hfimg2.xls', sfExcel2, true);
 
     if MyWorkbook.ErrorMsg <> '' then
-  begin
       WriteLn(MyWorkbook.ErrorMsg);
-  end;
 
+    WriteLn('Finished.');
+    WriteLn('Please open the files "hfimg.*" in your spreadsheet program.');
+   {$ifdef WINDOWS}
+    WriteLn('Press ENTER to close this program...');
+    ReadLn;
+   {$endif}
+
+  finally
     MyWorkbook.Free;
+  end;
 end.
 

components/fpspreadsheet/examples/other/demo_write_images.lpr

@@ -19,25 +19,23 @@ const
   image3 = '../../images/components/TSCELLEDIT.png';
 
 begin
+  Writeln('Starting program "demo_write_images"...');
+
   // Create the spreadsheet
   MyWorkbook := TsWorkbook.Create;
-  MyWorkbook.Options := [boFileStream];
-
+  try
     MyWorksheet := MyWorkbook.AddWorksheet('Sheet 1');
     MyWorksheet.DefaultRowHeight := 1.2;
     MyWorksheet.WriteText(0, 0, 'There are images in cells A3 and B3'); //
-  MyWorksheet.WriteImage(2, 0, image1, 1.0, 1.0, 2.0, 2.0);
+    // These images are offset by 1mm in both directions from the top/left cell edge
+    MyWorksheet.WriteImage(2, 0, image1, 1.0, 1.0, 2.0, 2.0);   // This image is magnified by factor 2
     MyWorksheet.WriteImage(2, 1, image2, 1.0, 1.0);
-                                         {
+
     MyWorksheet := MyWorkbook.AddWorksheet('Sheet 2');
     MyWorksheet.WriteText(0, 0, 'There is an image in cell B3');
     MyWorksheet.WriteImage(2, 1, image3);
-//  MyWorksheet.WriteImage(0, 2, 'D:\Prog_Lazarus\svn\lazarus-ccr\components\fpspreadsheet\examples\read_write\ooxmldemo\laz_open.png');
-//  MyWorksheet.WriteHyperlink(0, 0, 'http://www.chip.de');
-//  MyWorksheet.PageLayout.AddHeaderImage(1, hfsLeft, 'D:\Prog_Lazarus\svn\lazarus-ccr\components\fpspreadsheet\examples\read_write\ooxmldemo\laz_open.png');
-//  MyWorksheet.PageLayout.Headers[1] := '&LThis is a header&R&G';
-                                          }
-  // Save the spreadsheet to a file
+
+    // Save the spreadsheet to files
     MyDir := ExtractFilePath(ParamStr(0));
     MyWorkbook.WriteToFile(MyDir + 'img.xlsx', sfOOXML, true);
     MyWorkbook.WriteToFile(MyDir + 'img.ods', sfOpenDocument, true);
@@ -46,10 +44,17 @@ begin
 //  MyWorkbook.WriteToFile(MyDir + 'img2.xls', sfExcel2, true);
 
     if MyWorkbook.ErrorMsg <> '' then
-  begin
       WriteLn(MyWorkbook.ErrorMsg);
-  end;
 
+    WriteLn('Finished.');
+    WriteLn('Please open the files "img.*" in your spreadsheet program.');
+   {$ifdef WINDOWS}
+    WriteLn('Press ENTER to close this program...');
+    ReadLn;
+   {$ENDIF}
+
+  finally
     MyWorkbook.Free;
+  end;
 end.
 

components/fpspreadsheet/examples/other/readme.txt

@@ -21,3 +21,7 @@ This folder contains various demo applications:
 - demo_write_formatting: shows some simple cell formatting
 
 - demo_write_formula: shows some rpn formulas
+
+- demo_write_images: adds images to worksheets
+
+- demo_write_headerfooter_images: adds images to worksheet headers and footers

components/fpspreadsheet/fpsopendocument.pas

@@ -5919,7 +5919,7 @@ function TsSpreadOpenDocWriter.WritePageLayoutAsXMLString(AStyleName: String;
     AHeaderImageStr := IfThen((hdrImg = '') or (hdrImgPos = ''), '', Format(
       '<style:background-image xlink:href="Pictures/%s" '+
         'xlink:type="simple" xlink:actuate="onLoad" '+
-        'style:position="top %s" style:repeat="no-repeat" />',
+        'style:position="center %s" style:repeat="no-repeat" />',
       [hdrImg, hdrImgPos] ));
 
     AFooterImageStr := IfThen((ftrImg = '') or (ftrImgPos = ''), '', Format(