fpexif: Add very simple console demo

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@6083 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpexif/examples/console_demo/console_demo.lpi

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="10"/>
+    <PathDelim Value="\"/>
+    <General>
+      <Flags>
+        <MainUnitHasCreateFormStatements Value="False"/>
+        <MainUnitHasTitleStatement Value="False"/>
+        <MainUnitHasScaledStatement Value="False"/>
+      </Flags>
+      <SessionStorage Value="InProjectDir"/>
+      <MainUnit Value="0"/>
+      <Title Value="console_demo"/>
+      <UseAppBundle Value="False"/>
+      <ResourceType Value="res"/>
+    </General>
+    <BuildModes Count="1">
+      <Item1 Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+    </PublishOptions>
+    <RunParams>
+      <local>
+        <FormatVersion Value="1"/>
+      </local>
+    </RunParams>
+    <RequiredPackages Count="1">
+      <Item1>
+        <PackageName Value="fpexif_pkg"/>
+      </Item1>
+    </RequiredPackages>
+    <Units Count="1">
+      <Unit0>
+        <Filename Value="console_demo.pas"/>
+        <IsPartOfProject Value="True"/>
+      </Unit0>
+    </Units>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="11"/>
+    <PathDelim Value="\"/>
+    <Target>
+      <Filename Value="console_demo"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+  </CompilerOptions>
+  <Debugging>
+    <Exceptions Count="3">
+      <Item1>
+        <Name Value="EAbort"/>
+      </Item1>
+      <Item2>
+        <Name Value="ECodetoolError"/>
+      </Item2>
+      <Item3>
+        <Name Value="EFOpenError"/>
+      </Item3>
+    </Exceptions>
+  </Debugging>
+</CONFIG>

components/fpexif/examples/console_demo/console_demo.pas

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+program console_demo;
+
+{$mode objfpc}{$H+}
+
+uses
+  Classes,
+  fpeMetaData, fpeTags;
+
+var
+  imgInfo: TImgInfo;
+  tag: TTag;
+
+begin
+  imgInfo := TImgInfo.Create;
+  try
+    // Read file
+    imgInfo.LoadFromFile('..\test-image.jpg');
+
+    // Check for EXIF
+    if imgInfo.HasExif then begin
+
+      // Write out some tags
+      // (1) date and time when the picture was taken
+      Write('Date/time: ':20);
+      tag := imgInfo.ExifData.TagByName['DateTime'];
+      if tag = nil then
+        WriteLn('--- not available in this file ---')
+      else
+        WriteLn(tag.AsString);
+
+      // (2) shutter speed used when taking the photo
+      Write('Shutter speed: ':20);
+      tag := imgInfo.ExifData.TagByName['ShutterSpeed'];
+      if tag = nil then
+        WriteLn('--- not available in this file ---')
+      else
+        WriteLn(tag.AsString);
+
+      // Add user comment
+      imgInfo.ExifData.TagByName['UserComment'].AsString := 'This is my favorite photo.';
+
+      // Save to file
+      imgInfo.SaveToFile('edited_image.jpg');
+    end
+    else
+      WriteLn('No EXIF data in this file.');
+
+    // Check for IPTC
+    if imgInfo.HasIPTC then begin
+      // Write out IPTC key words
+      Write('Keywords: ':20);
+      tag := imgInfo.IptcData.TagByName['Keywords'];
+      if tag = nil then
+        WriteLn('--- not available in this file ---')
+      else
+        WriteLn(tag.AsString);
+    end
+    else
+      WriteLn('No IPTC data in this file.');
+
+  finally
+    imgInfo.Free;
+  end;
+
+  WriteLn('Press ENTER to quit...');
+  ReadLn;
+
+end.
+