Printers, made the cairo postscript canvas the default for cups backend (gtk2), printing latin, greek, cyrillic, arabic, chinese, etc. should now work, fixes issues #15161 and #19435

git-svn-id: trunk@40677 -

components/printers/printer4lazarus.lpk

@@ -219,14 +219,17 @@
       </Item43>
     </Files>
     <Type Value="RunAndDesignTime"/>
-    <RequiredPkgs Count="2">
+    <RequiredPkgs Count="3">
       <Item1>
-        <PackageName Value="LCL"/>
+        <PackageName Value="cairocanvas_pkg"/>
       </Item1>
       <Item2>
+        <PackageName Value="LCL"/>
+      </Item2>
+      <Item3>
         <PackageName Value="FCL"/>
         <MinVersion Major="1" Valid="True"/>
-      </Item2>
+      </Item3>
     </RequiredPkgs>
     <UsageOptions>
       <UnitPath Value="$(PkgOutDir)"/>
@@ -235,5 +238,8 @@
       <Version Value="2"/>
       <CommandAfter Value="tar czf $MakeFile($(ProjPublishDir)).tgz $(ProjPublishDir)"/>
     </PublishOptions>
+    <CustomOptions Items="ExternHelp" Version="2">
+      <_ExternHelp Items="Count"/>
+    </CustomOptions>
   </Package>
 </CONFIG>

components/printers/unix/cupsprinters.inc

@@ -1184,7 +1184,8 @@ end;
 
 function TCUPSPrinter.DoGetDefaultCanvasClass: TPrinterCanvasRef;
 begin
-  Result := TPostscriptPrinterCanvas;
+  //Result := TPostscriptPrinterCanvas;
+  Result := TCairoPsCanvas;
 end;
 
 function TCUPSPrinter.GetPrinterType: TPrinterType;

components/printers/unix/cupsprinters_h.inc

@@ -55,7 +55,7 @@
   ---------------------------------------------------------------------}
 uses
   Classes, SysUtils, LCLProc, PostScriptCanvas, Printers, Dialogs, Controls,
-  CUPSDyn;
+  CUPSDyn, CairoCanvas;
   
 type
   TCUPSPrinterState = (