Date: prev next · Thread: first prev next last
2013 Archives by date, by thread · List index


Hi,

I have submitted a patch for review:

    https://gerrit.libreoffice.org/2925

To pull it, you can do:

    git pull ssh://gerrit.libreoffice.org:29418/core refs/changes/25/2925/1

rhbz#876742 speed up table manipulation in Impress

It turns out this is not actually a performance problem but an oversight
in implementation (or a bug, if you want .-)

Every manipulation with a table (e.g., move, resize; actually even a
selection of the table) leads to creation of a full copy of the table
(SdrObject::getFullDragClone()). One of the actions the table copy impl.
does is to call sdr::CellProperties::SetStyleSheet() on every cell of
the new table. CellProperties is derived from
sdr::properties::TextProperties and CellProperties::SetStyleSheet() just
passes the call to TextProperties::SetStyleSheet(). This is where the
trouble begins :-)

The SDR representation of a table, SdrTableObj, is derived from
SdrTextObj. Because of that, SdrTextObj needs to be able to contain more
than one SdrText (because a table needs one for every cell). This is
handled correctly by TextProperties. But, because there is no SDR
representation of a single cell, CellProperties uses the SdrTableObj as
the SDR object it works on. Therefore TextProperties::SetStyleSheet()
processes all SdrText objects of the _whole table_, not just a single
cell. And this is repeated for every other cell...

Change-Id: Iab2e2d0e1e8038710645c0bd24666e6032b0a003
(cherry picked from commit 91864e19c84ae9834d6e97ee5ddc4db5bf957681)
---
M svx/Package_inc.mk
A svx/inc/svx/itextprovider.hxx
M svx/inc/svx/sdr/properties/textproperties.hxx
M svx/inc/svx/svdotext.hxx
M svx/source/sdr/properties/textproperties.cxx
M svx/source/table/cell.cxx
6 files changed, 125 insertions(+), 15 deletions(-)



diff --git a/svx/Package_inc.mk b/svx/Package_inc.mk
index 3eac094..fa3313d 100644
--- a/svx/Package_inc.mk
+++ b/svx/Package_inc.mk
@@ -31,6 +31,7 @@
 $(eval $(call gb_Package_add_file,svx_inc,inc/svx/fntctl.hxx,svx/fntctl.hxx))
 $(eval $(call gb_Package_add_file,svx_inc,inc/svx/svdattr.hxx,svx/svdattr.hxx))
 $(eval $(call gb_Package_add_file,svx_inc,inc/svx/imapdlg.hxx,svx/imapdlg.hxx))
+$(eval $(call gb_Package_add_file,svx_inc,inc/svx/itextprovider.hxx,svx/itextprovider.hxx))
 $(eval $(call gb_Package_add_file,svx_inc,inc/svx/linkwarn.hxx,svx/linkwarn.hxx))
 $(eval $(call 
gb_Package_add_file,svx_inc,inc/svx/formatpaintbrushctrl.hxx,svx/formatpaintbrushctrl.hxx))
 $(eval $(call gb_Package_add_file,svx_inc,inc/svx/xcolit.hxx,svx/xcolit.hxx))
diff --git a/svx/inc/svx/itextprovider.hxx b/svx/inc/svx/itextprovider.hxx
new file mode 100644
index 0000000..3202e4d
--- /dev/null
+++ b/svx/inc/svx/itextprovider.hxx
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#if !defined SVX_ITEXTPROVIDER_HXX_INCLUDED
+#define SVX_ITEXTPROVIDER_HXX_INCLUDED
+
+#include <sal/types.h>
+
+#include <svx/svxdllapi.h>
+
+class SdrText;
+
+namespace svx
+{
+
+    /** This interface provides access to text object(s) in an SdrObject.
+
+     */
+    class SVX_DLLPUBLIC ITextProvider
+    {
+    public:
+        /** Return the number of texts available for this object. */
+        virtual sal_Int32 getTextCount() const = 0;
+
+        /** Return the nth available text. */
+        virtual SdrText* getText(sal_Int32 nIndex) const = 0;
+
+    protected:
+        ~ITextProvider() {}
+    };
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/inc/svx/sdr/properties/textproperties.hxx 
b/svx/inc/svx/sdr/properties/textproperties.hxx
index ac6a613..456b104 100644
--- a/svx/inc/svx/sdr/properties/textproperties.hxx
+++ b/svx/inc/svx/sdr/properties/textproperties.hxx
@@ -20,6 +20,7 @@
 #ifndef _SDR_PROPERTIES_TEXTPROPERTIES_HXX
 #define _SDR_PROPERTIES_TEXTPROPERTIES_HXX
 
+#include <svx/itextprovider.hxx>
 #include <svx/sdr/properties/attributeproperties.hxx>
 #include "svx/svxdllapi.h"
 
@@ -45,6 +46,9 @@
             // react on ItemSet changes
             virtual void ItemSetChanged(const SfxItemSet& rSet);
 
+            /// Get the TextProvider related to our SdrObject
+            virtual const svx::ITextProvider& getTextProvider() const;
+
         public:
             // basic constructor
             explicit TextProperties(SdrObject& rObj);
diff --git a/svx/inc/svx/svdotext.hxx b/svx/inc/svx/svdotext.hxx
index 5f1eeac..551cf58 100644
--- a/svx/inc/svx/svdotext.hxx
+++ b/svx/inc/svx/svdotext.hxx
@@ -21,6 +21,7 @@
 #define _SVDOTEXT_HXX
 
 #include <vcl/field.hxx>
+#include <svx/itextprovider.hxx>
 #include <svx/svdoattr.hxx>
 #include <svx/svdtrans.hxx> // GeoStat
 #include <tools/datetime.hxx>
@@ -123,7 +124,7 @@
 //   SdrTextObj
 //************************************************************
 
-class SVX_DLLPUBLIC SdrTextObj : public SdrAttrObj
+class SVX_DLLPUBLIC SdrTextObj : public SdrAttrObj, public svx::ITextProvider
 {
 private:
     // Cell needs access to ImpGetDrawOutliner();
diff --git a/svx/source/sdr/properties/textproperties.cxx 
b/svx/source/sdr/properties/textproperties.cxx
index e4eb5cd..db1a34a 100644
--- a/svx/source/sdr/properties/textproperties.cxx
+++ b/svx/source/sdr/properties/textproperties.cxx
@@ -82,14 +82,15 @@
         void TextProperties::ItemSetChanged(const SfxItemSet& rSet)
         {
             SdrTextObj& rObj = (SdrTextObj&)GetSdrObject();
-            sal_Int32 nText = rObj.getTextCount();
+            const svx::ITextProvider& rTextProvider(getTextProvider());
+            sal_Int32 nText = rTextProvider.getTextCount();
 
             // #i101556# ItemSet has changed -> new version
             maVersion++;
 
             while( --nText >= 0 )
             {
-                SdrText* pText = rObj.getText( nText );
+                SdrText* pText = rTextProvider.getText( nText );
 
                 OutlinerParaObject* pParaObj = pText ? pText->GetOutlinerParaObject() : 0;
 
@@ -170,10 +171,11 @@
             {
                 SdrOutliner& rOutliner = rObj.ImpGetDrawOutliner();
 
-                sal_Int32 nCount = rObj.getTextCount();
+                const svx::ITextProvider& rTextProvider(getTextProvider());
+                sal_Int32 nCount = rTextProvider.getTextCount();
                 while( nCount-- )
                 {
-                    SdrText* pText = rObj.getText( nCount );
+                    SdrText* pText = rTextProvider.getText( nCount );
                     OutlinerParaObject* pParaObj = pText->GetOutlinerParaObject();
                     if( pParaObj )
                     {
@@ -223,6 +225,11 @@
             }
         }
 
+        const svx::ITextProvider& TextProperties::getTextProvider() const
+        {
+            return static_cast<const SdrTextObj&>(GetSdrObject());
+        }
+
         void TextProperties::SetStyleSheet(SfxStyleSheet* pNewStyleSheet, sal_Bool 
bDontRemoveHardAttr)
         {
             SdrTextObj& rObj = (SdrTextObj&)GetSdrObject();
@@ -237,11 +244,12 @@
             {
                 SdrOutliner& rOutliner = rObj.ImpGetDrawOutliner();
 
-                sal_Int32 nText = rObj.getTextCount();
+                const svx::ITextProvider& rTextProvider(getTextProvider());
+                sal_Int32 nText = rTextProvider.getTextCount();
 
                 while( --nText >= 0 )
                 {
-                    SdrText* pText = rObj.getText( nText );
+                    SdrText* pText = rTextProvider.getText( nText );
 
                     OutlinerParaObject* pParaObj = pText ? pText->GetOutlinerParaObject() : 0;
                     if( !pParaObj )
@@ -396,11 +404,12 @@
                 && !rObj.IsLinkedText())
             {
                 Outliner* pOutliner = SdrMakeOutliner(OUTLINERMODE_OUTLINEOBJECT, rObj.GetModel());
-                sal_Int32 nText = rObj.getTextCount();
+                const svx::ITextProvider& rTextProvider(getTextProvider());
+                sal_Int32 nText = rTextProvider.getTextCount();
 
                 while( --nText >= 0 )
                 {
-                    SdrText* pText = rObj.getText( nText );
+                    SdrText* pText = rTextProvider.getText( nText );
 
                     OutlinerParaObject* pParaObj = pText ? pText->GetOutlinerParaObject() : 0;
                     if( !pParaObj )
@@ -542,6 +551,7 @@
             SdrTextObj& rObj = (SdrTextObj&)GetSdrObject();
             if(rObj.HasText())
             {
+                const svx::ITextProvider& rTextProvider(getTextProvider());
                 if(HAS_BASE(SfxStyleSheet, &rBC))
                 {
                     SfxSimpleHint* pSimple = PTR_CAST(SfxSimpleHint, &rHint);
@@ -551,10 +561,10 @@
                     {
                         rObj.SetPortionInfoChecked(sal_False);
 
-                        sal_Int32 nText = rObj.getTextCount();
+                        sal_Int32 nText = rTextProvider.getTextCount();
                         while( --nText > 0 )
                         {
-                            OutlinerParaObject* pParaObj = rObj.getText(nText 
)->GetOutlinerParaObject();
+                            OutlinerParaObject* pParaObj = rTextProvider.getText( nText 
)->GetOutlinerParaObject();
                             if( pParaObj )
                                 pParaObj->ClearPortionInfo();
                         }
@@ -574,10 +584,10 @@
                     if(SFX_HINT_DYING == nId)
                     {
                         rObj.SetPortionInfoChecked(sal_False);
-                        sal_Int32 nText = rObj.getTextCount();
+                        sal_Int32 nText = rTextProvider.getTextCount();
                         while( --nText > 0 )
                         {
-                            OutlinerParaObject* pParaObj = rObj.getText(nText 
)->GetOutlinerParaObject();
+                            OutlinerParaObject* pParaObj = rTextProvider.getText( nText 
)->GetOutlinerParaObject();
                             if( pParaObj )
                                 pParaObj->ClearPortionInfo();
                         }
@@ -596,10 +606,10 @@
 
                         if(!aOldName.Equals(aNewName))
                         {
-                            sal_Int32 nText = rObj.getTextCount();
+                            sal_Int32 nText = rTextProvider.getTextCount();
                             while( --nText > 0 )
                             {
-                                OutlinerParaObject* pParaObj = rObj.getText(nText 
)->GetOutlinerParaObject();
+                                OutlinerParaObject* pParaObj = rTextProvider.getText( nText 
)->GetOutlinerParaObject();
                                 if( pParaObj )
                                     pParaObj->ChangeStyleSheetName(eFamily, aOldName, aNewName);
                             }
diff --git a/svx/source/table/cell.cxx b/svx/source/table/cell.cxx
index e931007..9a52903 100644
--- a/svx/source/table/cell.cxx
+++ b/svx/source/table/cell.cxx
@@ -99,6 +99,46 @@
     return &aSvxCellPropertySet;
 }
 
+namespace
+{
+
+class CellTextProvider : public svx::ITextProvider
+{
+public:
+    explicit CellTextProvider(const sdr::table::CellRef xCell);
+    virtual ~CellTextProvider();
+
+private:
+    virtual sal_Int32 getTextCount() const;
+    virtual SdrText* getText(sal_Int32 nIndex) const;
+
+private:
+    const sdr::table::CellRef m_xCell;
+};
+
+CellTextProvider::CellTextProvider(const sdr::table::CellRef xCell)
+    : m_xCell(xCell)
+{
+}
+
+CellTextProvider::~CellTextProvider()
+{
+}
+
+sal_Int32 CellTextProvider::getTextCount() const
+{
+    return 1;
+}
+
+SdrText* CellTextProvider::getText(sal_Int32 nIndex) const
+{
+    (void) nIndex;
+    assert(nIndex == 0);
+    return m_xCell.get();
+}
+
+}
+
 namespace sdr
 {
     namespace properties
@@ -108,6 +148,8 @@
         protected:
             // create a new itemset
             SfxItemSet& CreateObjectSpecificItemSet(SfxItemPool& rPool);
+
+            const svx::ITextProvider& getTextProvider() const;
 
         public:
             // basic constructor
@@ -131,6 +173,9 @@
             void SetStyleSheet(SfxStyleSheet* pNewStyleSheet, sal_Bool bDontRemoveHardAttr);
 
             sdr::table::CellRef mxCell;
+
+        private:
+            const CellTextProvider maTextProvider;
         };
 
         // create a new itemset
@@ -153,15 +198,22 @@
                 0, 0));
         }
 
+        const svx::ITextProvider& CellProperties::getTextProvider() const
+        {
+            return maTextProvider;
+        }
+
         CellProperties::CellProperties(SdrObject& rObj, sdr::table::Cell* pCell)
         :   TextProperties(rObj)
         ,   mxCell(pCell)
+        ,   maTextProvider(mxCell)
         {
         }
 
         CellProperties::CellProperties(const CellProperties& rProps, SdrObject& rObj, 
sdr::table::Cell* pCell)
         :   TextProperties(rProps, rObj)
         ,   mxCell( pCell )
+        ,   maTextProvider(mxCell)
         {
         }
 

-- 
To view, visit https://gerrit.libreoffice.org/2925
To unsubscribe, visit https://gerrit.libreoffice.org/settings

Gerrit-MessageType: newchange
Gerrit-Change-Id: Iab2e2d0e1e8038710645c0bd24666e6032b0a003
Gerrit-PatchSet: 1
Gerrit-Project: core
Gerrit-Branch: libreoffice-4-0
Gerrit-Owner: David Tardon <dtardon@redhat.com>


Context


Privacy Policy | Impressum (Legal Info) | Copyright information: Unless otherwise specified, all text and images on this website are licensed under the Creative Commons Attribution-Share Alike 3.0 License. This does not include the source code of LibreOffice, which is licensed under the Mozilla Public License (MPLv2). "LibreOffice" and "The Document Foundation" are registered trademarks of their corresponding registered owners or are in actual use as trademarks in one or more countries. Their respective logos and icons are also subject to international copyright laws. Use thereof is explained in our trademark policy.