LOK: add setPartMode.

This API seems to be simplest in the long run where we'll want to be
able to select between rendering slides/notes/both/embedded objects,
and maybe even adding the option of switching between continuous
and single page mode in writer (although I have no idea how hard
getting a single page mode out of writer would be).

Change-Id: I5bdfdb61854c37281c6992c8f3ed1c50c8aa0919

desktop/source/lib/init.cxx

@@ -185,6 +185,7 @@ static int doc_getParts(LibreOfficeKitDocument* pThis);
 static int doc_getPart(LibreOfficeKitDocument* pThis);
 static void doc_setPart(LibreOfficeKitDocument* pThis, int nPart);
 static char* doc_getPartName(LibreOfficeKitDocument* pThis, int nPart);
+static void doc_setPartMode(LibreOfficeKitDocument* pThis, LibreOfficeKitPartMode ePartMode);
 void        doc_paintTile(LibreOfficeKitDocument* pThis,
                           unsigned char* pBuffer,
                           const int nCanvasWidth, const int nCanvasHeight,
@@ -216,6 +217,7 @@ struct LibLODocument_Impl : public _LibreOfficeKitDocument
             m_pDocumentClass->getPart = doc_getPart;
             m_pDocumentClass->setPart = doc_setPart;
             m_pDocumentClass->getPartName = doc_getPartName;
+            m_pDocumentClass->setPartMode = doc_setPartMode;
             m_pDocumentClass->paintTile = doc_paintTile;
             m_pDocumentClass->getDocumentSize = doc_getDocumentSize;
 
@@ -490,6 +492,21 @@ static char* doc_getPartName(LibreOfficeKitDocument* pThis, int nPart)
 
 }
 
+static void doc_setPartMode(LibreOfficeKitDocument* pThis,
+                            LibreOfficeKitPartMode ePartMode)
+{
+    LibLODocument_Impl* pDocument = static_cast<LibLODocument_Impl*>(pThis);
+
+    ::vcl::ITiledRenderable* pDoc = dynamic_cast< ::vcl::ITiledRenderable* >( pDocument->mxComponent.get() );
+    if (!pDoc)
+    {
+        gImpl->maLastExceptionMsg = "Document doesn't support tiled rendering";
+        return;
+    }
+
+    pDoc->setPartMode(ePartMode);
+}
+
 void doc_paintTile (LibreOfficeKitDocument* pThis,
                     unsigned char* pBuffer,
                     const int nCanvasWidth, const int nCanvasHeight,

include/LibreOfficeKit/LibreOfficeKit.h

@@ -40,6 +40,16 @@ typedef enum
   LOK_DOCTYPE_OTHER
 }
 LibreOfficeKitDocumentType;
+
+typedef enum
+{
+    LOK_PARTMODE_DEFAULT,
+    LOK_PARTMODE_SLIDE,
+    LOK_PARTMODE_NOTES,
+    LOK_PARTMODE_SLIDENOTES,
+    LOK_PARTMODE_EMBEDDEDOBJ
+}
+LibreOfficeKitPartMode;
 #endif // LOK_USE_UNSTABLE_API
 
 struct _LibreOfficeKit
@@ -86,6 +96,9 @@ struct _LibreOfficeKitDocumentClass
   char* (*getPartName)    (LibreOfficeKitDocument* pThis,
                            int nPart);
 
+  void (*setPartMode)     (LibreOfficeKitDocument* pThis,
+                           LibreOfficeKitPartMode eMode);
+
   // Get a pointer to a raw array, of size 3*nCanvasWidth*nCanvasHeight
   // Basebmp's bitmap device seems to round the width up if needed
   // for its internal buffer, i.e. the rowstride for the buffer may be larger

include/vcl/ITiledRenderable.hxx

@@ -11,6 +11,8 @@
 #ifndef INCLUDED_VCL_ITILEDRENDERABLE_HXX
 #define INCLUDED_VCL_ITILEDRENDERABLE_HXX
 
+#define LOK_USE_UNSTABLE_API
+#include <LibreOfficeKit/LibreOfficeKit.h>
 #include <tools/gen.hxx>
 #include <vcl/virdev.hxx>
 
@@ -67,6 +69,11 @@ public:
         (void) nPart;
         return "";
     }
+
+    virtual void setPartMode(LibreOfficeKitPartMode ePartMode)
+    {
+        (void) ePartMode;
+    }
 };
 
 } // namespace vcl