LCOV - code coverage report
Current view: top level - libreoffice/sd/source/ui/toolpanel/controls - MasterPageContainerProviders.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 9 0.0 %
Date: 2012-12-27 Functions: 0 14 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef SD_TOOLPANEL_CONTROLS_MASTER_PAGE_CONTAINER_PROVIDERS_HXX
      21             : #define SD_TOOLPANEL_CONTROLS_MASTER_PAGE_CONTAINER_PROVIDERS_HXX
      22             : 
      23             : #include <rtl/ustring.hxx>
      24             : #include <sfx2/objsh.hxx>
      25             : 
      26             : class Image;
      27             : class SdDrawDocument;
      28             : class SdPage;
      29             : namespace sd { class PreviewRenderer; }
      30             : namespace sd { class DrawDocShell; }
      31             : 
      32             : 
      33             : namespace sd { namespace toolpanel { namespace controls {
      34             : 
      35             : 
      36             : /** Interface for a provider of page objects.  It is used by the
      37             :     MasterPageDescriptor to create master page objects on demand.
      38             : */
      39           0 : class PageObjectProvider
      40             : {
      41             : public:
      42             :     /** Return a master page either by returning an already existing one, by
      43             :         creating a new page, or by loading a document.
      44             :         @param pDocument
      45             :             The document of the MasterPageContainer.  It may be used to
      46             :             create new pages.
      47             :     */
      48             :     virtual SdPage* operator() (SdDrawDocument* pDocument) = 0;
      49             : 
      50             :     /** An abstract value for the expected cost of providing a master page
      51             :         object.
      52             :         @return
      53             :             A value of 0 represents for the lowest cost, i.e. an almost
      54             :             immediate return.  Positive values stand for higher costs.
      55             :             Negative values are not supported.
      56             :     */
      57             :     virtual int GetCostIndex (void) = 0;
      58             : 
      59             :     virtual bool operator== (const PageObjectProvider& rProvider) = 0;
      60             : 
      61             : protected:
      62           0 :     ~PageObjectProvider() {}
      63             : };
      64             : 
      65             : 
      66             : 
      67             : 
      68           0 : class PreviewProvider
      69             : {
      70             : public:
      71             :     /** Create a preview image in the specified width.
      72             :         @param nWidth
      73             :             Requested width of the preview.  The calling method can cope
      74             :             with other sizes as well but the resulting image quality is
      75             :             better when the returned image has the requested size.
      76             :         @param pPage
      77             :             Page object for which a preview is requested.  This may be NULL
      78             :             when the page object is expensive to get and the PreviewProvider
      79             :             does not need this object (NeedsPageObject() returns false.)
      80             :         @param rRenderer
      81             :             This PreviewRenderer may be used by the PreviewProvider to
      82             :             create a preview image.
      83             :     */
      84             :     virtual Image operator() (int nWidth, SdPage* pPage, ::sd::PreviewRenderer& rRenderer) = 0;
      85             : 
      86             :     /** Return a value that indicates how expensive the creation of a
      87             :         preview image is.  The higher the returned value the more expensive
      88             :         is the preview creation.  Return 0 when the preview is already
      89             :         present and can be returned immediately.
      90             :     */
      91             :     virtual int GetCostIndex (void) = 0;
      92             : 
      93             :     /** Return whether the page object passed is necessary to create a
      94             :         preview.
      95             :     */
      96             :     virtual bool NeedsPageObject (void) = 0;
      97             : 
      98             : protected:
      99           0 :     ~PreviewProvider() {}
     100             : };
     101             : 
     102             : 
     103             : 
     104             : 
     105             : /** Provide previews of existing page objects by rendering them.
     106             : */
     107             : class PagePreviewProvider : public PreviewProvider
     108             : {
     109             : public:
     110             :     PagePreviewProvider (void);
     111           0 :     virtual ~PagePreviewProvider() {}
     112             :     virtual Image operator () (int nWidth, SdPage* pPage, ::sd::PreviewRenderer& rRenderer);
     113             :     virtual int GetCostIndex (void);
     114             :     virtual bool NeedsPageObject (void);
     115             : private:
     116             : };
     117             : 
     118             : 
     119             : 
     120             : 
     121             : /** Provide master page objects for template documents for which only the
     122             :     URL is given.
     123             : */
     124             : class TemplatePageObjectProvider : public PageObjectProvider
     125             : {
     126             : public:
     127             :     TemplatePageObjectProvider (const ::rtl::OUString& rsURL);
     128           0 :     virtual ~TemplatePageObjectProvider (void) {};
     129             :     virtual SdPage* operator () (SdDrawDocument* pDocument);
     130             :     virtual int GetCostIndex (void);
     131             :     virtual bool operator== (const PageObjectProvider& rProvider);
     132             : private:
     133             :     ::rtl::OUString msURL;
     134             :     SfxObjectShellLock mxDocumentShell;
     135             :     ::sd::DrawDocShell* LoadDocument (const ::rtl::OUString& sFileName);
     136             : };
     137             : 
     138             : 
     139             : 
     140             : 
     141             : /** Provide previews for template documents by loading the thumbnails from
     142             :     the documents.
     143             : */
     144             : class TemplatePreviewProvider : public PreviewProvider
     145             : {
     146             : public:
     147             :     TemplatePreviewProvider (const ::rtl::OUString& rsURL);
     148           0 :     virtual ~TemplatePreviewProvider (void) {};
     149             :     virtual Image operator() (int nWidth, SdPage* pPage, ::sd::PreviewRenderer& rRenderer);
     150             :     virtual int GetCostIndex (void);
     151             :     virtual bool NeedsPageObject (void);
     152             : private:
     153             :     ::rtl::OUString msURL;
     154             : };
     155             : 
     156             : 
     157             : 
     158             : 
     159             : /** Create an empty default master page.
     160             : */
     161             : class DefaultPageObjectProvider : public PageObjectProvider
     162             : {
     163             : public:
     164             :     DefaultPageObjectProvider (void);
     165           0 :     virtual ~DefaultPageObjectProvider() {}
     166             :     virtual SdPage* operator () (SdDrawDocument* pDocument);
     167             :     virtual int GetCostIndex (void);
     168             :     virtual bool operator== (const PageObjectProvider& rProvider);
     169             : };
     170             : 
     171             : 
     172             : 
     173             : /** This implementation of the PageObjectProvider simply returns an already
     174             :     existing master page object.
     175             : */
     176             : class ExistingPageProvider : public ::sd::toolpanel::controls::PageObjectProvider
     177             : {
     178             : public:
     179             :     ExistingPageProvider (SdPage* pPage);
     180           0 :     virtual ~ExistingPageProvider() {}
     181             :     virtual SdPage* operator() (SdDrawDocument* pDocument);
     182             :     virtual int GetCostIndex (void);
     183             :     virtual bool operator== (const PageObjectProvider& rProvider);
     184             : private:
     185             :     SdPage* mpPage;
     186             : };
     187             : 
     188             : } } } // end of namespace ::sd::toolpanel::controls
     189             : 
     190             : #endif
     191             : 
     192             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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