TB10.1 Example Applications: examples/AppFramework/txtshell/txtglob.cpp Source File

00001 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 //
-00015 
-00016 #include "txtexamp.h"
-00017 
-00018 #include <fldset.h>
-00019 #include <fldbase.h>
-00020 #include <fldbltin.h>
-00021 #include <flddef.h>
-00022 
-00023 //
-00024 // field factory
-00025 //
-00026 
-00027 class TExampleFieldFactory : public MTextFieldFactory
-00028         // A text field factory. 
-00029         // It creates date/time fields only.
-00030         {
-00031 public:
-00032         virtual CTextField* NewFieldL(TUid aFieldType);
-00033         };
-00034 
-00035 CTextField* TExampleFieldFactory::NewFieldL(TUid aFieldType)
-00036         {
-00037         CTextField* field = NULL; // NULL keeps GCC compiler happy 
-00038         // Factory only produces date time fields, if aFieldType is 
-00039         // not a date time field type, do nothing.
-00040         if (aFieldType==KDateTimeFieldUid)
-00041                 field = (CTextField*)new(ELeave) CDateTimeField();
-00042         return field;
-00043         }
-00044 
-00045 //
-00046 // CGlobalControl implementation
-00047 //
-00048 
-00049 CGlobalControl::~CGlobalControl()
-00050         {
-00051         delete iTextView; // text view
-00052         delete iLayout; // layout
-00053         delete iGlobalText; // contained text object
-00054         delete iCharFormatLayer; // char format layer
-00055         delete iParaFormatLayer; // and para format layer
-00056         }
-00057 
-00058 void CGlobalControl::UpdateModelL()
-00059         {
-00060         // Create all constant literal descriptors used in this function, 
-00061         // e.g. for message text
-00062         _LIT(KPath,"\\globtxt.dat");
-00063         _LIT(KText1,"Some global text.");
-00064         _LIT(KText5, "To be, or not to be, that is the question; \
-00065 whether 'tis nobler in the mind to suffer the \
-00066 slings and arrows of outrageous fortune, or \
-00067 to stand against a sea of troubles, and by \
-00068 opposing end them."); 
-00069         _LIT(KText6,"Word at pos %d (\"%S\") has %d characters, starts at pos %d");
-00070         _LIT(KText2," And some more global text.");
-00071         _LIT(KText3,"A new paragraph.");
-00072         _LIT(KText4,"Number of characters=%d, words=%d, paras=%d");
-00073         _LIT(KText8,"%D%M%Y%H:%T:%S %1/%2/%3");
-00074         _LIT(KStatus0,"Initialised global text object and text view");
-00075         _LIT(KStatus1,"InsertL() at position zero");
-00076         _LIT(KStatus2,"InsertL() at end of document");
-00077         _LIT(KStatus3,"Insert new paragraph, and more text");
-00078         _LIT(KStatus5,"Inserted lots of text");
-00079         _LIT(KStatus7,"Inserted date time field");
-00080         _LIT(KStatus8,"Centre aligned paragraphs");
-00081         _LIT(KStatus9,"Set bold, italic and underline (and updated the field)");
-00082         _LIT(KStatus10,"Used StoreL() to store text and fields");
-00083         _LIT(KStatus12,"Used RestoreL() to restore text and fields");
-00084         _LIT(KStatus13,"Deleted lots of text");
-00085         _LIT(KStatus14,"Paragraph and character formatting reset to default values");
-00086         _LIT(KStatusReset,"Reset();");
-00087         _LIT(KStatusDefault,"(Overshot!!)");
-00088 
-00089         TBufC<28>   name(KPath);
-00090         
-00091         switch (Phase())
-00092                 {
-00093         case 0:
-00094                 {
-00095                 // Create text object, text view and layout.
-00096                 iParaFormatLayer=CParaFormatLayer::NewL(); // required para format layer
-00097                 iCharFormatLayer=CCharFormatLayer::NewL(); // required char format layer
-00098                 // Create an empty global text object
-00099                 iGlobalText=CGlobalText::NewL(iParaFormatLayer, iCharFormatLayer);
-00100                 // prerequisites for view - viewing rectangle
-00101                 iViewRect=Rect();
-00102                 iViewRect.Shrink(3,3);
-00103                 // context and device
-00104                 CWindowGc& gc=SystemGc(); // get graphics context
-00105                 CBitmapDevice *device=(CBitmapDevice*) (gc.Device()); // device
-00106                 // Create the text layout, (required by text view),
-00107                 // with the text object and a wrap width (=width of view rect)
-00108                 iLayout=CTextLayout::NewL(iGlobalText,iViewRect.Width());
-00109                 // Create text view
-00110                 iTextView=CTextView::NewL(iLayout, iViewRect,
-00111                                 device,
-00112                                 device,
-00113                                 &Window(),
-00114                                 0, // no window group
-00115                                 &iCoeEnv->WsSession()
-00116                                 ); // new view
-00117                 // message to say what we did
-00118                 iFormObserver->NotifyStatus(KStatus0);
-00119                 break;
-00120                 }
-00121         case 1:
-00122                 // Set some character formatting - applied globally
-00123                 iCharFormatMask.SetAttrib(EAttFontStrokeWeight); // set weight (for bold)
-00124 
-00125                 // Set bold     
-00126                 iCharFormat.iFontSpec.iFontStyle.SetStrokeWeight(EStrokeWeightBold);
-00127 
-00128                 // apply formatting - pos and length are irrelevent
-00129                 iGlobalText->ApplyCharFormatL(iCharFormat,iCharFormatMask, 0,0);
-00130                 
-00131                 // Insert some text
-00132                 iGlobalText->InsertL(0,KText1);
-00133                 iFormObserver->NotifyStatus(KStatus1);
-00134                 break;
-00135         case 2:
-00136                 // Insert some more text
-00137                 iGlobalText->InsertL(iGlobalText->LdDocumentLength(),KText2);
-00138                 iFormObserver->NotifyStatus(KStatus2);
-00139                 break;
-00140         case 3:
-00141                 // Insert a new paragraph
-00142                 iGlobalText->InsertL(iGlobalText->LdDocumentLength(),CEditableText::EParagraphDelimiter);
-00143                 // Insert text to follow new paragraph delimiter
-00144                 iGlobalText->InsertL(iGlobalText->LdDocumentLength(),KText3);
-00145                 iFormObserver->NotifyStatus(KStatus3);
-00146                 break;
-00147         case 4:
-00148                 {
-00149                 // Display document info in status message
-00150                 TBuf<80> message; // for formatting status messages
-00151                 message.Format(KText4,
-00152                                 iGlobalText->LdDocumentLength(),
-00153                                                 // length up to and excluding final para mark
-00154                                 iGlobalText->WordCount(), // white-space delimited words
-00155                                 iGlobalText->ParagraphCount() // number paras including the final one
-00156                                 );
-00157                 iFormObserver->NotifyStatus(message);
-00158                 break;
-00159                 }
-00160         case 5:
-00161                 // Insert lots of text
-00162                 iGlobalText->InsertL(iGlobalText->LdDocumentLength(),CEditableText::EParagraphDelimiter);
-00163                 iGlobalText->InsertL(iGlobalText->LdDocumentLength(),KText5);
-00164                 iFormObserver->NotifyStatus(KStatus5);
-00165                 break;
-00166         case 6:
-00167                 {
-00168                 // Display information about a random document position
-00169                 TBuf<80> message; // for formatting status messages
-00170                 // Print info about word at a document position
-00171                 TInt pos=iGlobalText->LdDocumentLength()/2;
-00172                 TInt startPos, length; // results of function
-00173                 iGlobalText->GetWordInfo(pos,startPos,length,EFalse,ETrue);
-00174                                 // gets startPos and length, given pos
-00175                 // Insert all text into buffer from startPos (start of word at 
-00176                 // position pos) onwards
-00177                 TPtrC ptr=iGlobalText->Read(startPos,length); 
-00178                 // Print out word and word info
-00179                 message.Format(KText6, pos, &ptr, length, startPos);
-00180                 iFormObserver->NotifyStatus(message);
-00181                 break;
-00182                 }
-00183         case 7:
-00184                 {
-00185                 // Insert date/time field into document
-00186                 TExampleFieldFactory* factory = new(ELeave) TExampleFieldFactory();
-00187                 CleanupStack::PushL(factory);
-00188                 // Set up the field factory
-00189                 iGlobalText->SetFieldFactory(factory);
-00190                 CTextField* field = iGlobalText->NewTextFieldL(KDateTimeFieldUid);
-00191                 // Format date to hour:minute:second day/month/year 
-00192                 ((CDateTimeField*)field)->SetFormat(KText8); 
-00193                 iGlobalText->InsertFieldL(0,field,KDateTimeFieldUid);
-00194                 // Evaluate the field (makes contents visible)
-00195                 iGlobalText->UpdateAllFieldsL();
-00196                 // Insert new para delimiter after field
-00197                 // First get length of field we've just inserted
-00198                 TFindFieldInfo info; 
-00199                 TInt pos=0;
-00200                 TInt range=0;
-00201                 iGlobalText->FindFields(info,pos,range);
-00202                 iGlobalText->InsertL(info.iFirstFieldLen,CEditableText::EParagraphDelimiter);
-00203                 iFormObserver->NotifyStatus(KStatus7);
-00204                 // clean up
-00205                 CleanupStack::PopAndDestroy(); // factory
-00206                 break;
-00207                 }
-00208         case 8:
-00209                 {
-00210                 // Set some paragraph formatting - applied globally
-00211                 CParaFormat* paraFormat=CParaFormat::NewLC();
-00212                 TParaFormatMask paraFormatMask;
-00213                 // Set centre alignment
-00214                 paraFormat->iHorizontalAlignment=CParaFormat::ECenterAlign; 
-00215                 paraFormatMask.SetAttrib(EAttAlignment);
-00216                 // apply formatting - pos and length are irrelevent
-00217                 iGlobalText->ApplyParaFormatL(paraFormat,paraFormatMask,0,0);
-00218                 iFormObserver->NotifyStatus(KStatus8);
-00219                 CleanupStack::PopAndDestroy();  // paraFormat
-00220                 break;
-00221                 }
-00222         case 9:
-00223                 {
-00224                 // Set some character formatting - applied globally
-00225                 TCharFormat charFormat;
-00226                 TCharFormatMask charFormatMask;
-00227                 // Interested in underline, posture and weight
-00228                 charFormatMask.SetAttrib(EAttFontUnderline); // set underline
-00229                 charFormatMask.SetAttrib(EAttFontPosture); // and posture (for italic)
-00230                 charFormatMask.SetAttrib(EAttFontStrokeWeight); // set weight (for bold)
-00231 
-00232                 // Set bold, italics and underlining
-00233                 charFormat.iFontPresentation.iUnderline=EUnderlineOn;
-00234                 charFormat.iFontSpec.iFontStyle.SetPosture(EPostureItalic); 
-00235                 charFormat.iFontSpec.iFontStyle.SetStrokeWeight(EStrokeWeightBold);
-00236                 // apply formatting - pos and length are irrelevent
-00237                 iGlobalText->ApplyCharFormatL(charFormat,charFormatMask, 0,0);
-00238                 // And update the field
-00239                 iGlobalText->UpdateFieldL(0);
-00240                 iFormObserver->NotifyStatus(KStatus9);
-00241                 break;
-00242                 }
-00243 // Storing and restoring
-00244         case 10:                                                                           
-00245                 // set up a file store
-00246                 {
-00247                 RFs         theFs;
-00248                 CFileStore* theStore;
-00249                 TParse      filestorename;
-00250                 // Make a connection to the file server
-00251                 theFs.Connect();
-00252                 theFs.Parse(name,filestorename);
-00253                 theStore=CDirectFileStore::ReplaceLC(theFs,filestorename.FullName(),EFileRead|EFileWrite);
-00254                 theStore->SetTypeL(KDirectFileStoreLayoutUid);
-00255                 // store global text to file store
-00256                 iStreamId=iGlobalText->StoreL(*theStore);
-00257                 // close file store
-00258                 CleanupStack::PopAndDestroy(); // pop and destroy store
-00259                 // Disconnect from file server
-00260                 theFs.Close();
-00261                 iFormObserver->NotifyStatus(KStatus10);
-00262                 break;
-00263                 }
-00264         case 11:
-00265                 // reset document, clearing it of all content
-00266                 iGlobalText->Reset();
-00267                 iFormObserver->NotifyStatus(KStatusReset);
-00268                 break;
-00269         case 12:
-00270                 {
-00271                 // set up file store
-00272                 RFs         theFs;
-00273                 CFileStore* theStore;
-00274                 TParse      filestorename;
-00275 
-00276                 theFs.Connect();
-00277                 theFs.Parse(name,filestorename);
-00278                 theStore=CDirectFileStore::OpenLC(theFs,filestorename.FullName(),EFileRead|EFileShareReadersOnly);
-00279                 if (theStore->Type()[0]!=KDirectFileStoreLayoutUid)
-00280                         User::Leave(KErrUnknown);
-00281                 // restore text and components from file store
-00282                 iGlobalText->RestoreL(*theStore,iStreamId);
-00283                 // close file store
-00284                 CleanupStack::PopAndDestroy(); // pop and destroy store
-00285                 theFs.Close();
-00286                 iGlobalText->UpdateFieldL(0);
-00287                 iFormObserver->NotifyStatus(KStatus12);
-00288                 break;
-00289                 }
-00290         case 13:
-00291                 // Delete all text from paragraph containing a random doc position to 
-00292                 // end of document. Also delete preceding paragraph delimiter to keep 
-00293                 // paragraph count correct.
-00294                 {
-00295                 TInt pos=iGlobalText->LdDocumentLength()/2;
-00296                 iGlobalText->ToParagraphStart(pos); // pos set to start of paragraph
-00297                 pos--; // decrement so pos = preceding para delimiter
-00298                 iGlobalText->DeleteL(pos, iGlobalText->LdDocumentLength()-pos);
-00299                                 // delete rest of text
-00300                 iFormObserver->NotifyStatus(KStatus13);
-00301                 break;
-00302                 }
-00303         case 14:
-00304                 {
-00305                 // Reset all formatting back to the default
-00306                 TCharFormat charFormat;
-00307                 TCharFormatMask charFormatMask;
-00308                 CParaFormat* paraFormat=CParaFormat::NewLC();
-00309                 TParaFormatMask paraFormatMask;
-00310                 // Reset all character format attributes
-00311                 charFormatMask.SetAll();
-00312                 iGlobalText->ApplyCharFormatL(charFormat,charFormatMask,0,1);
-00313                         // format is all empty, mask is all set: thus, everything to default
-00314                 paraFormatMask.SetAll();
-00315                 iGlobalText->ApplyParaFormatL(paraFormat, paraFormatMask, 0,1);
-00316                         // ditto
-00317                 iFormObserver->NotifyStatus(KStatus14);
-00318                 CleanupStack::PopAndDestroy();  // paraFormat
-00319                 break;
-00320                 }
-00321         case 15:
-00322                 // reset document, clearing it of all text content and fields
-00323                 iGlobalText->Reset();
-00324                 iFormObserver->NotifyStatus(KStatusReset);
-00325                 break;
-00326         default:
-00327                 iFormObserver->NotifyStatus(KStatusDefault);
-00328                 break;
-00329                 }
-00330         }
-00331 
-00332 void CGlobalControl::Draw(const TRect& aRect) const
-00333         {
-00334         // draw surround
-00335         CGraphicsContext& gc=SystemGc(); // context to draw into
-00336         TRect rect=Rect(); // screen boundary
-00337         gc.DrawRect(rect); // outline screen boundary
-00338         rect.Shrink(1,1);
-00339         gc.SetPenColor(KRgbWhite);
-00340         gc.DrawRect(rect);
-00341         rect.Shrink(1,1);
-00342         gc.SetPenColor(KRgbBlack);
-00343         gc.DrawRect(rect);
-00344         // draw editable text - will work unless OOM
-00345         TInt err;
-00346         TRAP(err,iTextView->FormatTextL());
-00347         if (err) return;
-00348         TRAP(err,iTextView->DrawL(aRect));
-00349         }
-00350 
-00351 
-