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Revision: 65
Committed: Wed Jul 12 09:13:04 2017 UTC (6 years, 8 months ago) by tony
File size: 35164 byte(s)
Log Message:
IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
   entering a new name into the text box

File Contents

# User Rev Content
1 tony 56 IBX Change Log version (2.0.3) tba, 24 Feb 2017 12:17:53 +0000
2    
3     1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4     changes.
5    
6 tony 58 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7     Bug could result in truncated multi-byte character set values.
8    
9 tony 60 3. Changes consequential on moving fbintf character set utility functions from
10     IFirebirdAPI to IAttachment.
11    
12 tony 62 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
13    
14 tony 64 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15     results in autocomplete ignoring prefix text.
16    
17 tony 65 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
18     entering a new name into the text box.
19    
20 tony 51 IBX Change Log version (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
21 tony 49
22 tony 51 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
23 tony 49 include remote system name.
24    
25     2. TIBExtract: No longer include comment header and COMMIT statement for empty
26     tables when data included in output.
27    
28     3. Profiling: IBSQL now has conditional compilation flags to enable query performance
29     and timing information to be written to stdout. This may be used to locate
30     performance bottlenecks.
31    
32     4. SQLParser: only call "OnChanging" event handler when value is different.
33    
34     5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
35    
36 tony 50 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
37     that BindFields is called when the query is next activated. Avoids FieldName
38     not found error.
39    
40 tony 47 IBX Change Log version (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
41 tony 45
42 tony 47 1. TIBEvents: Fix uninitialised variable that could result in lost events.
43 tony 45
44 tony 47 2. TIBExtract: Added support for FB3 "USAGE" privilege.
45    
46     3. TIBExtract: data formatted as Charset set "octets" is now output using
47     hexadecimal notation.
48    
49     4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
50     using a simple XML format.
51    
52     5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
53     grants to these objects.
54    
55     6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
56     dependency problems restoring complex databases.
57    
58     7. TIBXScript: This component has been restructured to allow for the processing of
59     embedded XML in INSERT statements and to support interactive sources in addition
60     to non-interactive data sources such as files.
61    
62     8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
63    
64     9. TIBXScript: ISQL compatiable Set statements are now supported:
65     SET SQL DIALECT
66     SET TERM
67     SET AUTODDL
68     SET BAIL
69     SET ECHO
70     SET COUNT
71     SET STATS
72     SET NAMES <character set>
73    
74     10. IBVersion unit added to hold current IBX Version Number information.
75    
76     11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
77     and domain definitions.
78    
79     12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
80     fully supported.
81    
82     13. TIBExtract: when a database dump includes data, the generator values are now also set.
83    
84     14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
85    
86     IBX Change Log version (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
87    
88 tony 50 See also doc/IBX4LazarusGuide.pdf for important information on
89 tony 45 upgrading to IBX2.
90    
91     1. Size property of TIBStringField is now the width in characters of the field
92     and not the byte length. This applies only to multi-byte character sets such
93     as UTF8. The original approach aligned with TStringField. However, the TStringField
94     code is not recognised as a bug and hence this change to align the behaviour.
95     The TStringField change is expected in fpc 3.2.0.
96    
97     2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
98     true (default) then Size property value saved in the lfm is ignored. Size is
99     always set from the dynamic information read from the database. It is unclear
100     why anyone would want to override this and set Size to false.
101    
102     3. ibxscript: should now handle correctly a Case..End statement within a procedure
103     block.
104    
105     4. IBDatabase: new property - CreateIfNotExists. If true and database does not
106     exist when an attempt is made to connect to it (run time only) then an attempt
107     is made to create the database.
108    
109     5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
110     has been successfully created as a result of a call to CreateDatabase or when
111     creating a database after it was found not to exist.
112    
113     6. DBControlGrid: a race condition could result in the wrong row image being
114     written to the cache. This has been avoided by a trip round the message
115     loop before rendering the row image.
116    
117     7. DBControlGrid: It is strongly recommended not to open the source DataSet for
118     a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
119     known to risk corrupt rendering of row images when the control is first
120     displayed. If necessary use "Application.QueueAsyncCall" to delay opening
121     of the dataset (see DBControlGrid examples) until the Form's Window has been created.
122    
123     8. DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
124     a TDateEdit control located on an editor panel.
125    
126     9. TIBExtract: brought up-to-date plus many bug fixes.
127    
128     10. DBControlGrid: Removed memory leak when updating rows.
129    
130     11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
131    
132 tony 43 IBX Change Log version (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
133    
134     1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
135     when target codepage is CP_NONE. This is a workaround for
136     http://bugs.freepascal.org/view.php?id=30622.
137    
138     2. DBLog option removed from TIBStatisticalService - not supported by server
139     since Firebird 1.5.
140    
141     3. ibxscript: An error is no longer generated for "on commit preserve rows" or
142     similar.
143    
144     4. IBCodePage: updated mapping between codepages and character id.
145    
146     5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
147     Firebird. Character sets with a char width of two are not UTF16.
148    
149     6. Strings received from the database are now always transliterated into UTF8
150     regardless of the database character set or connection character set. This
151     is for compatibility with the LCL.
152    
153 tony 45 IBX Change Log version (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
154 tony 41
155     1. IBBlob: Defer reading of blob until read method called. This avoids having to
156     read in an entire blob just to get the size of the blob. General performance
157     improvement when opening datasets containing blobs.
158    
159     2. Clearing a Blob now sets the corresponding field's modified flag.
160    
161     3. IBLookupCombo: When not performing auto-complete, original query sort order
162     is now used.
163    
164     4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
165     determined.
166    
167     5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
168    
169     6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
170     lazarus 1.6.0
171    
172     7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
173     compilation error.
174    
175 tony 39 IBX Change Log version (1.4-1) Tue, 17 May 2016 09:14:51 +0100
176    
177     1. No character set specified for connection: when a text blob is retrieved, the
178     character set is determined by looking up the native character set using then
179     Firebird API. Otherwise a text mode blob is assumed to have the same character
180     set as the connection.
181    
182     2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
183     for Login Dialog returing a change to the database path.
184    
185     3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
186     to be changed from that given in the TIBDatabase/TIBServer component and for the
187     entered value to be saved on a project specific basis (design time only).
188    
189     4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
190     column fieldname. If they are the same then it is acts as a look up for the KeyValue
191     Otherwise, it sets the column text to the selected ListField Value.
192    
193     5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
194     column width.
195    
196     6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
197     and a case insensitive search is requested.
198    
199     7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
200     or column ListSource.
201    
202     8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
203     unprepare) when closing and the text has not changed.
204    
205     9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
206     Less likely to cause a cursor re-use error on Windows.
207    
208     10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
209     Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
210    
211     11. TIBTreeView: Guard against nil destination on record changed
212    
213     12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
214     string type with the code page set to reflect the returned field encoding after
215     Firebird driver transliteration, if any. FPC 3.0.0 onwards only. Behaviour unchanged for
216     earlier versions.
217    
218     13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
219     will now result in transliteration to the code page specified for the Firebird driver
220     if the assigned string has a different code page. FPC 3.0.0 onwards only.
221    
222     14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
223     is ignored and the lc_ctype value, when the database is opened, is set to align with
224     the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
225     platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
226     3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
227     the GETACP is used to determine the Windows code page.
228    
229     15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
230     name used as the lc_ctype when the database was opened. Only valid while the
231     Database is connected.
232    
233     16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
234     id that corresponds to the DefaultCharSetName.
235    
236 tony 37 IBX Change Log version (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
237    
238     1. Unix: If Firebird Embedded Server shared object is loaded and a local database
239     path is given and database attach fails due to access permission issues on the
240     temp directory or security database, then the attach is retried with "localhost:"
241     prefixing the databasename. This should avoid problems when the database has to
242     be accessed by a local (e.g. classic) server and libfbembed is used.
243    
244     2. Windows: revised search order for Firebird DLL:
245     i. The Firebird Embedded Server in the application Directory.
246     ii. If the FIREBIRD environment variable is set then the directory this
247     points to is searched for the FB Client DLL and then then underlying
248     "bin" directory.
249     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
250     is used to locate the Firebird installation directory and the underlying
251     "bin" directory is searched for the FB Client DLL.
252     iv. The Default installation directories C:\Program Files\Firebird\Firebird_2_x
253     are searched for the FB Client DLL.
254     v. The PATH Environment variable is used to search for the FB Client DLL.
255     vi. Finally the PATH Environment variable is used to search for IBASE.DLL.
256    
257     3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
258     See doc/readme.scriptengine and example applications.
259    
260     4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
261     simplify the use of the embedded firebird server on both Linux and Windows platforms.
262     See dpc/readme.localdatabase and example applications.
263    
264     5. IBDynamicGrid: Reordering on column header click should now also work for
265     dynamic columns.
266    
267     6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
268     between incrementing/decrementing the lock count and signalling the event.
269    
270 tony 35 IBX Change Log version (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
271    
272 tony 37 1.3.2 was never formally released and only made available as beta copies.
273    
274 tony 35 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
275    
276     2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
277    
278     3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
279    
280     4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
281     i.e. when it is a calculated field
282    
283     5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
284     This problem was due to a race condition between recalculating row heights and
285     determining which row was selected by the mouse click. The row height calculation
286     is now deferred by an extra trip round the message loop allowing the row to
287     be always calculated on the current grid layout rather than risking it being
288     calculated on the grid layout after the expanded row has been shrunk.
289    
290     6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
291     Windows.
292    
293     7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
294     These properties allow the (Firebird) character set name for the field and the max number of bytes per character
295 tony 37 to be determined at runtime. See doc/readme.charactersets.html.
296 tony 35
297     8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
298 tony 37 TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
299 tony 35
300     9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
301     TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
302 tony 37 1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
303 tony 35
304     Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
305     from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
306     implies no truncation.
307    
308     10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
309    
310     11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
311     (avoids "Not in Edit Mode" error).
312    
313     12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
314    
315     13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
316     DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
317    
318     14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
319    
320     15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
321    
322     16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
323    
324     17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
325    
326 tony 33 IBX Change Log version (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
327 tony 31
328     1. OnCloseUp Event Handler added to TDBLookupProperties
329    
330     2. IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
331     problem with row size when exception is called.
332    
333     3. IBLookupComboEditBox: Force pending autocomplete on combobox exit.
334    
335     4. IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
336     in a TCustomComboBox and ignores return key if in a TCustomMemo
337    
338     5. IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
339     keyed in i.e. when autocomplete not performed
340    
341 tony 33 6. Cleanup of "Uses" clauses and add console mode support. IBX should now support
342     console mode applications with all LCL required functions (builtin dialogs and
343     cursor management) centralised in the IBDialogs unit. As long as "IBDialogs" is
344     not included in your project, IBX should compile and link with a console mode program.
345     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
346     console mode application or the IDE will automatically assume that your
347     application is GUI based. Instead, you should include the ibexpressconsolemode package.
348 tony 31
349     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
350     to use the built in dialogs and cursor management. IBDialogs is
351 tony 33 included by default if "ibexpress" is in your project source's "uses" clause.
352 tony 31 This should be the case for all projects created through the IDE. This is why
353     you do not want to add the ibexpress package to console mode applications. The
354     ibexpressconsolemode package has been created to allow console mode programs
355     to avoid adding LCL dependencies when using IBX, while still having the
356     unit search paths set up correctly.
357    
358 tony 33 Existing users should check to ensure that the "ibexpress" unit is included in
359     each project's source file (*.lpr).
360    
361 tony 31 You may find that in order for the IDE to recognise that ibexpressconsolemode
362     exists, you have to first open the package in the IDE and then close it. This
363     adds it to the most recently accessed packages list. To make it permanently
364     available, add the package name to lazarus' staticpackages.inc file.
365    
366 tony 33 Thanks to Julio Jiménez for suggesting support of console mode.
367 tony 31
368     7. SQL Parser can now accept quoted strings that include new lines
369    
370     8. IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
371     of text on start of edit. This is particularly useful when tabbing to a
372     column and then inserting text.
373    
374     9. New Examples provided for IB Services and ISQLMonitor.
375    
376     10. Fix error when writing to blob streams that recorded only the last buffer
377     write in the blob stream. In most cases, this did not cause a problem as the
378     IB Blob Stream is written in a single write. However, with the TDBImage, write
379     of a graphic type prefix was lost which caused a problem when the image could
380     not be automatically recognised.
381    
382     11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
383 tony 33 already open" errors due to random numbers used for the cursor name being identical.
384 tony 31
385     12. IBTable: corrected error that could result in an "Index out of bounds" error
386     when opening the table and the Primary Key is the last or only column in the
387     table. Thanks to Rick Hoover for the fix.
388    
389 tony 33 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
390     of "UTF-8", and update list of available database character sets. Existing
391     users should check the current lc_ctype setting in their applications.
392 tony 29
393 tony 33 IBX Change Log version (1.2-4) Sat, 09 May 2015 12:38:29 +0100
394    
395 tony 29 1. Firebird Services: avoid List Index error when opening a service with an
396     empty Params property.
397    
398     2. IBControls: Fix problem with new link mechanism introduced in 1.2.3.
399     Link now set up in Loaded method - avoids occasional failure to apply
400     SQL markup on initial open.
401    
402     3. "Employees" example performance improvements when scrolling.
403    
404     4. DBControlGrid: Correctly handle edit panel removal when panel is child control of a
405     TFrame. Force recaching of selected frame to avoid GTK race (results in a
406     random image cached).
407    
408     5. DBControlGrid: Should now react to changes in panel height at run time.
409    
410     6. IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
411     even when further rows exist.
412    
413     7. DBControlGrid: DefaultRowHeight is no longer a published property as it should
414     always be derived from panel height and setting this property can cause confusion.
415     Note for existing projects: to avoid a missing property error at run time,
416     each form using the DBControlGrid must be opened, updated and saved in the IDE
417     in order to remove the property value from the lfm.
418    
419    
420 tony 33 IBX Change Log version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
421 tony 27
422     1. TIBStoredProc. Prepare now called by ParamByName to avoid need to always
423     call Prepare before setting parameter values.
424    
425     2. Error message on ParamByName (all cases) not found now includes name of missing parameter.
426    
427     3. Code tidyup and more robust handling of dsql information result vector.
428    
429     4. Support for centralised handling of transaction status changes. TIBTransaction
430     has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
431     and "AfterExecQuery". The first three are called after the same event is called
432     for an IBCustomDataSet descendent using the Transaction. The fourth is called
433     after a call to TIBSQL.ExecQuery, again using this transaction. These new events
434     enable monitoring of transaction status changes for a given transaction to be
435     handled in a single place. For example, when a change to the dataset occurs
436     an indicator can be set that shows the user that in order to save changes,
437     the transaction should be committed. Rather than doing this per dataset, this
438     can now be done per transaction.
439    
440     5. TDataSet.CheckBrowseMode automatically posts changes to the current row when
441     the dataset is scrolled. However, any changes to the current row are, by default,
442     discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
443     have a new property "DataSetCloseAction" that adds automatic posting of changes
444     on dataset close. If this property is set to dcDiscardChanges (default) then the
445     behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
446     then IBX will attempt to post any unsaved changes before the dataset is closed
447     (and after the BeforeClose event handler is called). The exception is when the
448     dataset is being closed as a result of a transaction rollback. In this case,
449     no action is taken and any unsaved changes are discarded. This avoids both
450     unnecessary overhead and the risk that a validation error may occur in the Post
451     raising an exception and thereby preventing a rollback.
452    
453     6. String Field sizes and Display Widths should now be correct for multi-byte character sets.
454     In earlier versions, the Display Width was set to the maximum byte width rather than the character
455     width. Display Widths are now corrected by dividing by the max byte width per character.
456     For UTF8 character sets, the byte width is four and hence the Display Width will be
457     the byte width divided by 4. The byte width of each character set is determined
458     dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
459     system table. (see also http://bugs.freepascal.org/view.php?id=27766).
460    
461     7. SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
462    
463     8. IBLookupComboEditBox: List should now always be restored to full list when the
464     control loses focus. Default Key press default interval reduced to 200ms.
465    
466     9. DBControlGrid: Ensure that selection is changed to newly appended row, even
467     when dataset rows are less than visible rows.
468    
469     10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
470     does not exist or DataSet is empty. More responsive on dataset open. New event
471     OnRestorePosition. Column sort disabled if no header row.
472    
473     11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
474     while dataset state is dsInsert. Avoids posting errors.
475    
476     12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
477     avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
478    
479     13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
480    
481     14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
482     to solve a specific problem. That is when the dataset cursor is moved (e.g. by
483     a grid mouse click and the current row is being edited or inserted. In this case, TDataset
484     always "posts" the current record regardless or whether or not it may be more appropriate
485     to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
486     "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
487     as the first action of the "Post" method and allows the handler to convert the Post
488     into a Cancel if that is the appropriate action on moving to a different row. This is
489     achieved by returning with "CancelPost" argument set to true. Note that an exception could be
490     raised here, but it may still be more appropriate to validate a post and signal
491     a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
492    
493     15. On Unix derived systems, the Firebird library name can now be given as a colon
494     separated list. Each library name on the list is tried in turn, in left to right
495     order with the first found being used as the firebird library. By default, on Linux,
496     the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
497     overidden by the FBLIB environment variable or the OnGetLibraryName function.
498    
499     Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
500     then it will still attempt to access the database via the Firebird Server and will
501     require a username and password. If only the pathname is given, then the username
502     and password should be omitted and the unix file permissions are used to grant
503     access.
504    
505 tony 33 IBX Change Log version (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
506 tony 23
507     1. A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
508     rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
509     that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
510 tony 27 corresponds to a row of the linked DataSource. Any data aware control on the
511 tony 23 replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
512    
513     2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
514 tony 25 When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
515 tony 23 takes place during database access. This may be useful when there are performance issues with
516     the change of cursor. Setting the property to false suppresses the change of cursor.
517    
518     3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
519     and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
520     Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
521     making all changes permanent immediately rather than when the transaction is explicitly
522     committed.
523    
524 tony 25 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
525 tony 27 using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
526 tony 23
527 tony 33 IBX Change Log version (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
528 tony 25
529     Development version only.
530    
531 tony 33 IBX Change Log version (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
532 tony 21
533     1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
534     This is typically used during an "OnBeforeOpen" event handler to manipulate the
535     "Where" and "Having" clauses to implement user specified filters of arbitrary
536     complexity.
537    
538     2. A new Component Palette entry "Firebird Data Controls" is now available. This has
539     three new data aware controls dependent on IBX and which make use of the SQL Parser.
540     These are:
541    
542     - TIBLookupComboEditBox
543     - TIBDynamicGrid
544     - TIBTreeview
545    
546     TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
547     of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
548     to revise the available list and restrict it to items that are prefixed by the
549 tony 25 typed text (either case sensitive or case insensitive). Autoinsert allows a
550 tony 21 newly typed entry to be added to the list dataset and included in the available
551     list items.
552    
553     TIBDynamicGrid is a TDBGrid descendent that provides for:
554     - automatic resizing of selected columns to fill the available row length
555     - automatic positioning and sizing of a "totals" control, typically at the
556     column footer, on a per column basis.
557     - DataSet resorting on header row click, sorting the dataset by the selected column.
558     A second click on the same header cell reversed the sort order.
559     - Support for a "Panel Editor". That is on clicking the indicator column, the row
560     is automatically expanded and a panel superimposed on it. The panel can have any
561     number of child controls, typically data aware controls with the same datasource
562     as the grid allowing for editing of additional fields and more complex editors.
563     - Reselection of the same row following resorting.
564     - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
565     Its properties are specified on a per column basis and allows for one or more
566     columns to have their values selected from a list provided by a dataset.
567     Autocomplete and autoinsert are also available. The existing picklist editor
568     is unaffected by the extension.
569    
570     TIBTreeView is a data aware TCustomTreeView.
571    
572     3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
573     zero scale will no longer return an error. An Int64 will be returned instead.
574    
575     4. TIBTransaction now has events for Before and After Transaction End and a new function
576     "GetEndAction" allowing the EndAction to be accessed by these event handlers.
577    
578     5. TIBQuery can now handle correctly queries which contain the same keyword parameter
579     repeated multiple times.
580    
581     6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
582     check used to get in the way of using Stored Procedures, and "Update or Insert"
583     statements.
584    
585     7. Insert, Modify and Delete property Editors now support Query Generation from
586     Stored Procedures.
587    
588     8. Three new examples illustrate the use of the new IB Controls
589    
590    
591 tony 33 IBX Change Log version (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
592 tony 19
593     1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
594     setting performance. See "readme.field+param.names in the doc folder.(Thanks to
595     Gabor Boros for reporting this problem and for testing the improvements).
596    
597     2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
598     See readme.field+param.names in the doc folder.
599    
600     3. IBX SQL Editors will now automatically add double quotes around column names when the database
601     dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
602    
603     4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
604    
605     5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
606     actions.
607    
608     6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
609     thanks to Yuriy Kopnin for pointing this out).
610    
611     7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
612    
613     8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
614     for both fields and parameter setting.
615    
616     9. Changes to the Select SQL in an IBCustomDataset descendent should now be
617     visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
618    
619     10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
620     when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
621    
622     11. TIBTable now has a property editor for "MasterFields"
623    
624     12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
625     GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
626    
627     13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
628     of settings is unrecognised. Selecting this radio button has no effect on the settings.
629    
630    
631 tony 17 IBX Change Log version (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
632    
633     1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
634    
635 tony 15 IBX Change Log version (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
636    
637     1. In a TIBCustomDataset descendent, a generator now only sets the value when
638     it is null. This allows for alternative user defined setting of the generator
639    
640     Many thanks to Julio Jiménez for this fix
641    
642     2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
643     and suggests that the user may have forgotten to install it.
644    
645 tony 13 IBX Change Log version (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
646    
647     1. Conditional compilation used to limit registration of TIntegerField to
648     Lazarus versions less than 1.1
649    
650     2. When a database connection is created, character set is now by default set
651     to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
652     1250 to 1254.
653    
654    
655 tony 11 IBX Change Log version (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
656    
657     1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
658    
659    
660 tony 9 IBX Change Log version (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
661 tony 7
662     1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
663     Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
664    
665     2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
666     package is changed to do this (which it should do).
667    
668     IBX Change Log version (1.0-0) Sat, 28 Apr 2012 16:43:00 +0100
669    
670     1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
671    
672     2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
673    
674     3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
675    
676     4. Property editors should now correctly resize.
677    
678     5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
679     (restored original functionality)
680    
681     6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
682     library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.