Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Isn't RichView supposed to be better than RichEdit ? http://wiki.lazarus.freepascal.org/index.php/RichView Razvan _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
BTW: Skype uses RichView too :) _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Quoting Graeme Geldenhuys [EMAIL PROTECTED]: I don't really know what a ActionManager is supposed to do, but under An Action Manager is replacement for an ActionList, with some additional goodies like an improved component editor, and a runtime add actions to toolbar dialog, like the Customize... option in M$ Office applications... The freeware RX Components included this component, before Delphi did. I don't know if CodeGear remake this component or actually took the RX source code. It's very useful, altought It can be very easy to build. platform RichEdit component? Maybe it's only possible when you have I started to do something similar, and NO, It's NOT AS DIFFICULT, AS IT DOES, but It takes time for a lone developer to do it. Cheers. maramirezc _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Quoting Graeme Geldenhuys [EMAIL PROTECTED]: kinds of components, but nobody every bothers to write a RichEdit component from scratch. I started to do something like that, in Delphi, and I didn 't get any far due to my job workload. And It was a single line editor, not the whole multiline. The main problem with this component is that it shows not just text in different colors or styles (bold, underlines, etc), but also in different sizes and it suppouse to show pictures, which makes development difficult. Cheers !!! maramirezc _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/4/07, Tom Verhoeff [EMAIL PROTECTED] wrote: They run into some problems. E.g. Lazarus apparently does not (yet) have ActionManagers. Hence, also the configuration of standard actions like Cut/Copy/Paste is not a matter of a few clicks. I don't really know what a ActionManager is supposed to do, but under Lazarus you can do the following. Drop a ActionList on the form. Double click it. Click on the down arrow next to the New Action button. Select New Standard Action and select from the list. There are the usual Edit actions (cut, copy, paste), dialog, help and database actions. Also, the RichEdit component seems to need a workaround (e.g. TMemo, TSynMemo, TSynEdit). I really don't get this either. Even in the commercial product I bought, Borland Kylix 3 Enterprise edition, there wasn't a RichEdit component. I would have expected more from Borland. I'm not a component writer, but is it really that difficult to write a cross platform RichEdit component? Maybe it's only possible when you have 250 Microsoft developers at you disposal - I don't know? I've seen Delphi code that implemented the document editor case study used in the Gang of Four book (Design Patterns - Elements of Reusable Object-Oriented Software). It handled text formatting, inserting of images, etc.. Maybe that could be a start to a new Lazarus RichEdit component. Let me know and I'll try and find that code again. -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Tom Verhoeff wrote: I have some students who are trying to complete the Delphi 6 Text Editor tutorial using Lazarus. See e.g. Chapter 4 of http://www.win.tue.nl/~hemerik/2IP20/Doc/Qs.pdf They run into some problems. E.g. Lazarus apparently does not (yet) have ActionManagers. Hence, also the configuration of standard actions like Cut/Copy/Paste is not a matter of a few clicks. How hard is it to do this yourself (i.e. not using an ActionManager, write the necessary code)? Note that TAction and a number of related facilities are available in Lazarus. Yes, actionmanagers at one time were introduced in Delphi. I've never taken the time to figure out what I can do with them and why they are usefull. So, if someone can give a brief clue, they might get added to Lazarus someday. Marc _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Thursday, April 05, 2007, 1:55:29 PM, Marc wrote: MW Tom Verhoeff wrote: I have some students who are trying to complete the Delphi 6 Text Editor tutorial using Lazarus. See e.g. Chapter 4 of http://www.win.tue.nl/~hemerik/2IP20/Doc/Qs.pdf They run into some problems. E.g. Lazarus apparently does not (yet) have ActionManagers. Hence, also the configuration of standard actions like Cut/Copy/Paste is not a matter of a few clicks. How hard is it to do this yourself (i.e. not using an ActionManager, write the necessary code)? Note that TAction and a number of related facilities are available in Lazarus. Typically, in Delphi you would do it like this (without TActionManager): 1. Drop an TActionList onto form 2. Add a standard action from StdAcnts unit (e.g. TEditCut) to it 3. Drop a TMainMenu and add a menu item to it 4. Assign the Action property of menu item to necessary TAction. 5. Optionally, drop a TToolBar, add button and assign it to the same TAction. These steps do not require any coding. The same may be done with Lazarus. However, the problem is that its StdActns unit is currently just a skeleton, it has no functionality. MW Yes, actionmanagers at one time were introduced in Delphi. I've never MW taken the time to figure out what I can do with them and why they are MW usefull. So, if someone can give a brief clue, they might get added to MW Lazarus someday. The ActionManagers look like an attempt to mimic MSOffice 2000 user interface (the same look, the ability to customize menus and toolbars at runtime, and the ability to hide rarely used commands). On the other hand, they represent much more elaborated design than it was before. Briefly, you drag an action to menu bar and it's automatically rendered as menu item, then you drag the same action to the toolbar and it's rendered as a button. The whole thing was designed to custom paint its UI and support visual styles (at least partially, as ColorMaps). With proper implementation, this component could easily be completely cross-platform. However, regarding its actual implementation I have a feeling that everything possible and impossible was done so that nobody could ever use it with CLX. -- Best regards, Sergei _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Graeme Geldenhuys wrote: On 4/4/07, Tom Verhoeff [EMAIL PROTECTED] wrote: They run into some problems. E.g. Lazarus apparently does not (yet) have ActionManagers. Hence, also the configuration of standard actions like Cut/Copy/Paste is not a matter of a few clicks. I don't really know what a ActionManager is supposed to do, but under Lazarus you can do the following. Drop a ActionList on the form. Double click it. Click on the down arrow next to the New Action button. Select New Standard Action and select from the list. There are the usual Edit actions (cut, copy, paste), dialog, help and database actions. Also, the RichEdit component seems to need a workaround (e.g. TMemo, TSynMemo, TSynEdit). I really don't get this either. Even in the commercial product I bought, Borland Kylix 3 Enterprise edition, there wasn't a RichEdit component. I would have expected more from Borland. I'm not a component writer, but is it really that difficult to write a cross platform RichEdit component? Maybe it's only possible when you have 250 Microsoft developers at you disposal - I don't know? I've seen Delphi code that implemented the document editor case study used in the Gang of Four book (Design Patterns - Elements of Reusable Object-Oriented Software). It handled text formatting, inserting of images, etc.. Maybe that could be a start to a new Lazarus RichEdit component. Let me know and I'll try and find that code again. The TRichEdit component is a simple wrapper around a standard Windows widget, implemented in the riched32.dll. It doesn't show up in Kylix because there is no equivalent in the QT widget set. The WINE guys http://www.winehq.org have been working on this for years and still don't have a fully functional replacement. Gus _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/5/07, Gus Wirth [EMAIL PROTECTED] wrote: The TRichEdit component is a simple wrapper around a standard Windows widget, implemented in the riched32.dll. It doesn't show up in Kylix because there is no equivalent in the QT widget set. The WINE guys I know under Delphi it's a wrapper for that .dll, but why couldn't Borland just write one from scratch for Kylix? The same goes for Lazarus. Strangely enough, developers come up with all different kinds of components, but nobody every bothers to write a RichEdit component from scratch. That's why I'm asking if it's such an impossible thing that nobody can do, except the hordes of Microsoft employees. -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
RE: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
Do you want to (a) create RTF files programmatically and/or display RTF files from your program or do you want to (b) allow your users to have a simple rich-text editor in your program. You can do (a) now in a cross-platform way with the FPC rtfpars unit and an external word processor. -Original Message- From: Graeme Geldenhuys [mailto:[EMAIL PROTECTED] Sent: Thursday, April 05, 2007 3:14 PM To: lazarus@miraclec.com Subject: Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus? On 4/5/07, Gus Wirth [EMAIL PROTECTED] wrote: The TRichEdit component is a simple wrapper around a standard Windows widget, implemented in the riched32.dll. It doesn't show up in Kylix because there is no equivalent in the QT widget set. The WINE guys I know under Delphi it's a wrapper for that .dll, but why couldn't Borland just write one from scratch for Kylix? The same goes for Lazarus. Strangely enough, developers come up with all different kinds of components, but nobody every bothers to write a RichEdit component from scratch. That's why I'm asking if it's such an impossible thing that nobody can do, except the hordes of Microsoft employees. -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/5/07, Graeme Geldenhuys [EMAIL PROTECTED] wrote: That's why I'm asking if it's such an impossible thing that nobody can do, except the hordes of Microsoft employees. It´s not at all impossible. It just happens that so far noone was interrested enougth on this to actually implement it, or pay someone else to do it. I, for example, never needed a rich text component. -- Felipe Monteiro de Carvalho _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/5/07, Hess, Philip J [EMAIL PROTECTED] wrote: Do you want to (a) create RTF files programmatically and/or display RTF files from your program or do you want to (b) allow your users to have a simple rich-text editor in your program. You can do (a) now in a cross-platform way with the FPC rtfpars unit and an external word processor. At one stage (long ago when I worked with Kylix) I needed something like (b). A richtext component, but have no need for it in my current projects. Though I can see some uses for it in Lazarus. * Editing FPDoc documentation using 'lazde' and having a richedit component for the descriptions would be nice. The richedit component could have a swapable backend for saving to different formats like the xml needed in the documentation. No need for anybody wanting to create documentation to learn the fpdoc formatting tags. Just type, highlight text and click whatever formatting you want to apply (like all other word processors). * Help Viewer for when Lazarus one day has a cross platform help file (like .chm or .hlp). You get the idea... -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/5/07, Carlos German Tejero [EMAIL PROTECTED] wrote: wxWidgets, it's a good widgetset for Lazarus, Not really. There are no pascal bindings yet. -- Felipe Monteiro de Carvalho _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
On 4/5/07, Felipe Monteiro de Carvalho [EMAIL PROTECTED] wrote: It´s not at all impossible. It just happens that so far noone was interrested enougth on this to actually implement it, or pay someone else to do it. I didn't really think it being impossible, but like you say. Most probably everybody had the same idea, wait for somebody else to implement it. Either way, I'll see if I can find that code I spoke of, based on the GoF case study. Maybe that will give someone a starting point or some inspiration. -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
RE: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
If you substitute Qt for wxWidgets you have the layers of the Qt widgetset, which seems pretty fast. Certainly a lot faster than, say, the GTK2 widgetset, which only has 3 layers. I'm not sure that the number of layers affects performance that much in this case. There's probably something else going on. The advantage of wxWidgets is that Lazarus would need only 1 widgetset in order to use any of the backends that wxWidgets supports, similar to the way the Qt widgetset supports the backends that Qt supports. -Original Message- From: Graeme Geldenhuys [mailto:[EMAIL PROTECTED] Sent: Thursday, April 05, 2007 5:01 PM To: lazarus@miraclec.com Subject: Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus? On 4/5/07, Felipe Monteiro de Carvalho [EMAIL PROTECTED] wrote: On 4/5/07, Carlos German Tejero [EMAIL PROTECTED] wrote: wxWidgets, it's a good widgetset for Lazarus, Not really. There are no pascal bindings yet. The other problem being that it would be something like four layers of frameworks which can't be good for maintenance or performance. Native Compontents (GTK, GDI) - wxWidgets - Pascal Bindings - LCL -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
RE: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus?
TRichEdit has/had 3 basic problems: (1) Borland never supported Rich Edit 2 (RICHED20.DLL), only the original Rich Edit 1 (RICHED32.DLL). Rich Edit 2 has been part of Windows since the late 90's but Borland never supported it, not even in Delphi 2006. (2) Microsoft never fixed the bugs in RICHED20.DLL and doesn't appear to have made any improvements to it in years. (3) Even RICHED20.DLL only supports a fairly limited set of RTF control words. By hacking Delphi's ComCtrls.pas it is possible to enable support for RICHED20.DLL in TRichEdit, although this doesn't solve (2) or (3). Any Rich Edit control built from scratch would have the same problem of (3), that is, what subset of RTF to support? One problem with a control like this is that people want to use it like a word processor, which it's not. One person's useful control word is the next person's useless baggage. Ideally you could wrap a smallish word processor like AbiWord and use it in Lazarus. Then you would automatically have support for most of the RTF spec. Note that OS X has its own Help Viewer, so a Rich Edit control wouldn't be useful for viewing help on Macs, except in a non-standard way. -Original Message- From: Graeme Geldenhuys [mailto:[EMAIL PROTECTED] Sent: Thursday, April 05, 2007 4:55 PM To: lazarus@miraclec.com Subject: Re: [lazarus] Doing the Delphi 6 Text Editor Tutorial in Lazarus? On 4/5/07, Hess, Philip J [EMAIL PROTECTED] wrote: Do you want to (a) create RTF files programmatically and/or display RTF files from your program or do you want to (b) allow your users to have a simple rich-text editor in your program. You can do (a) now in a cross-platform way with the FPC rtfpars unit and an external word processor. At one stage (long ago when I worked with Kylix) I needed something like (b). A richtext component, but have no need for it in my current projects. Though I can see some uses for it in Lazarus. * Editing FPDoc documentation using 'lazde' and having a richedit component for the descriptions would be nice. The richedit component could have a swapable backend for saving to different formats like the xml needed in the documentation. No need for anybody wanting to create documentation to learn the fpdoc formatting tags. Just type, highlight text and click whatever formatting you want to apply (like all other word processors). * Help Viewer for when Lazarus one day has a cross platform help file (like .chm or .hlp). You get the idea... -- Graeme Geldenhuys There's no place like S34° 03.168' E018° 49.342' _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
