Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Sunday, February 7, 2010, 8:41:37 AM, you wrote: I think a deeper change in GTK is needed to handle this situation, maybe all controls must be APP_PAINTABLE and call some methods to perform the operations, but I'm not completly sure that it could be done in fact in GTK (following this logic). z No, same thing is with qt. APP_PAINTABLE = HasPaint with qt lcl. z This is how it goes: z 1.Paint event comes to control. z 2.If APP_PAINTABLE then LCL can do the job (usually forms,panels etc) z 3.If not - ws paints control with current theme (always after your changes - z so any of your changes via painting over such control are lost). z So whatever you do in paint event over TEdit, it's painted again by ws. z 4.The trick which can be done 1st call control paint from ws, do your changes z and say that result of event = true. z In that case we must have the way to tell ws that we want to paint that z control (eg. TEdit). Well the background border can be personalized which is painted by the theme engine, I think, but the inner text rect is always erased, so the problem seems to not be the theme engine (I have a nice textbox without any kind of border). -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Friday 05 February 2010 23:49, Graeme Geldenhuys wrote: I can only imagine such hacks will inevitably fail somewhere down the line - or is simply not supported by all widgetsets. Is it just my imagination, or is there more and more feature being added to LCL which only works on specific widgetsets (Restricted tab of Object Inspector). This is really not good news for LCL. :-( It's not proposal for LCL, but hack (or tip) for qt users which need such thing. It's not supported by all ws, and I'm against adding bunch of features which aren't supported on all widgetsets. This will never be in LCL, but hope that it'll help to some users. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Friday 05 February 2010 23:31, Kjow wrote: 2010/2/5 Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com: Yes, you need to mess with Gtk to do it. I would however recommend that you try it with Qt instead. The Qt API is much easier to use and the Qt interface is also much better organized. The downside is that you need the Pascal binding library if you use it. -- Felipe Monteiro de Carvalho What about licenses using of QT in commercial projects? it's LGPL. But you can buy commercial version if you want :) -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Friday 05 February 2010 19:56, JoshyFun wrote: More or less :) Mostly is tell to GTK2 that I'll paint something over TEdit and please GTK do not erase it :) or I you do it let me know to repaint my own content. Exact example is on my wiki page (but works with qt only :) ). -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 6 February 2010 04:28, Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com wrote: But now Lazarus uses and requires Qt 4.5+ which is LGPL, the same license as Gtk, which means in short: no problems What does that mean? Can you now use Qt 4.5+ in commercial software without buying a Qt License? Why then do they still sell licenses? What must you be doing before you require a Qt License? Note: I'm referring to writing commercial software, not free / open-source software. I already know you can use Qt with open-source software (KDE, Lazarus etc.). -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 6 February 2010 10:09, zeljko zel...@holobit.net wrote: and less buggy (just look at bug tracker, and compare number and type of qt bugs vs. gtk2 bugs), But that could also be explain as follows... not as many people are using the LCL-Qt widgetset compared to the LCL-GTK2 widgetset. :-) primary target. Sorry, but gtk2 is crap in it's current state for serious business application. GTK2 on it's own (not LCL-GTK2) is crap too. I simply hate the inconsistent sizes of components, Combobox drop-down behaviour (size and can't limit dropdown count), shitty treeview etc. Sadly though, I'm running Ubuntu with stock standard Gnome desktop. :-( I thought of trying Kubuntu, but I'm just not sure if I like the new KDE though - I'm still very much used to 3.5 (the little bit that I used it). I'll try Lazarus with LCL-Qt for the next week to see how it goes - I haven't tried LCL-Qt in a while. -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Saturday 06 February 2010 09:35, Graeme Geldenhuys wrote: On 6 February 2010 10:09, zeljko zel...@holobit.net wrote: and less buggy (just look at bug tracker, and compare number and type of qt bugs vs. gtk2 bugs), But that could also be explain as follows... not as many people are using the LCL-Qt widgetset compared to the LCL-GTK2 widgetset. :-) well, over 3500 client machines happily runs LCL-Qt apps (our customers), and there's no arguing about anything (was CLX before LCL-Qt). I can confirm that quality of LCL-Qt and lazarus qt is better than K3 at this moment.I've used K3 two months ago for the last time. Now starts D7 Ent. sometimes just to see some component behaviour and compare it to LCL. Goodbye borland,codegear,embarcadero FOREVER. primary target. Sorry, but gtk2 is crap in it's current state for serious business application. GTK2 on it's own (not LCL-GTK2) is crap too. I simply hate the inconsistent sizes of components, Combobox drop-down behaviour (size and can't limit dropdown count), shitty treeview etc. Sadly though, I'm running Ubuntu with stock standard Gnome desktop. :-( I thought of trying Kubuntu, but I'm just not sure if I like the new KDE though - I'm still very much used to 3.5 (the little bit that I used it). I'll try Lazarus with LCL-Qt for the next week to see how it goes - I haven't tried LCL-Qt in a while. Feedback is welcome :) -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
2010/2/6 Graeme Geldenhuys graemeg.li...@gmail.com: On 6 February 2010 00:31, Kjow antispamm...@gmail.com wrote: What about licenses using of QT in commercial projects? You need to purchase a commercial license. $2500 US per developer - starting price (if I remember correctly). -- Regards, - Graeme - WOW... really too much for me. Well, I'll develop with QT only if I'll be a milionaire :( Kjow -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Saturday 06 February 2010 12:02, Kjow wrote: 2010/2/6 Graeme Geldenhuys graemeg.li...@gmail.com: On 6 February 2010 00:31, Kjow antispamm...@gmail.com wrote: What about licenses using of QT in commercial projects? You need to purchase a commercial license. $2500 US per developer - starting price (if I remember correctly). -- Regards, - Graeme - WOW... really too much for me. Well, I'll develop with QT only if I'll be a milionaire :( No, Graeme is wrong. Qt is LGPL-ed so you can create commercial apps without buying Qt commercial licenses. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
2010/2/6 zeljko zel...@holobit.net: No, Graeme is wrong. Qt is LGPL-ed so you can create commercial apps without buying Qt commercial licenses. zeljko Oh, well this reevaluates the question. So if I use QT in my Lazarus projects I don't have to pay nothing to Nokia. And what about sources? Do I need to release it? So, the difference between LGPL and commercial licenses is the official support? ( I found this: http://qt.nokia.com/products/licensing ) Thanks, Kjow -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 06/02/2010, zeljko zel...@holobit.net wrote: No, Graeme is wrong. Qt is LGPL-ed so you can create commercial apps without buying Qt commercial licenses. So when do you need a Qt license then? -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 06/02/2010, zeljko zel...@holobit.net wrote: I'll try Lazarus with LCL-Qt for the next week to see how it goes - I haven't tried LCL-Qt in a while. Feedback is welcome :) See my new message thread Lazarus IDE + Qt annoyances. -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Saturday 06 February 2010 12:39, Kjow wrote: 2010/2/6 zeljko zel...@holobit.net: No, Graeme is wrong. Qt is LGPL-ed so you can create commercial apps without buying Qt commercial licenses. zeljko Oh, well this reevaluates the question. So if I use QT in my Lazarus projects I don't have to pay nothing to Nokia. And what about sources? Do I need to release it? no So, the difference between LGPL and commercial licenses is the official support? ( I found this: http://qt.nokia.com/products/licensing ) yes -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Saturday, February 6, 2010, 9:17:01 AM, you wrote: The problem with LCL is that it inherits a lot of habits from Windows platforms GG This is something I have experienced as well, so am glad to see others GG are noticing the same thing. LCL is meant to be cross-platform, but GG very often things are implemented base on how Windows works. Sometimes GG that simply doesn't cut it for the other 5 widgetsets LCL also GG supports. But that's how LCL is, we can not change it, or better we should not change it. GG My other problem with LCL (and this is a BIG one), is that to GG implement anything new, you need to be well versed in ALL the GG widgetsets LCL supports. That is near impossible. With LCL you can't Hmmm, no I think you must have a good know of the widgetset and a good know of LCL and most of us fail in the last one, the know of the LCL. That answers that different widgetsets raises events in different order in example. I never had serious problems using LCL for regular programs, only in the same troubles as when using Delphi (different problems but with similar roots). -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Sunday 07 February 2010 00:08, JoshyFun wrote: No problem is not solved because: 1) EraseBackground is now invoked, but calling inherited EraseBackground does not perform the default erasebackground procedure. 2) Now background is completly gone due (1) 3) WMPaint is invoked but the paint is always performed (whichever result is set in the message) so the inner rect in the TEdit is cleared always. I think a deeper change in GTK is needed to handle this situation, maybe all controls must be APP_PAINTABLE and call some methods to perform the operations, but I'm not completly sure that it could be done in fact in GTK (following this logic). No, same thing is with qt. APP_PAINTABLE = HasPaint with qt lcl. This is how it goes: 1.Paint event comes to control. 2.If APP_PAINTABLE then LCL can do the job (usually forms,panels etc) 3.If not - ws paints control with current theme (always after your changes - so any of your changes via painting over such control are lost). So whatever you do in paint event over TEdit, it's painted again by ws. 4.The trick which can be done 1st call control paint from ws, do your changes and say that result of event = true. In that case we must have the way to tell ws that we want to paint that control (eg. TEdit). zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
05.02.2010 19:57, JoshyFun wrote: Hello Lazarus-List, I wrote a little text induction feature to TCustomEdit, is is being done using LCL in Windows platform (without using Windows unit) where it works fine. The induction is the grayed text that appears in some textboxes like the attached one (taken from my windows code). To work in Windows it overrides the EraseBackground to paint the induction and the WMPaint message to not paint anything if no text available in the textbox. The problem is that in GTK2 this effect is not obtained as the EraseBackground is never called and message WMEraseBackground is never called also. GTK2 is almost new to me so I'm lost on how to solve this and if is in fact possible to solve it with the current LCL/GTK2 interaction. I hope somebody can give some hints or maybe simple says that impossible with current LCL implementation. EraseBackground message is only send for TCustomControl descendants. Therefore you get no message for TEdit. Best regards, Paul Ishenin. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 05/02/2010 12:57, JoshyFun wrote: Hello Lazarus-List, I wrote a little text induction feature to TCustomEdit, is is being done using LCL in Windows platform (without using Windows unit) where it works fine. The induction is the grayed text that appears in some textboxes like the attached one (taken from my windows code). To work in Windows it overrides the EraseBackground to paint the induction and the WMPaint message to not paint anything if no text available in the textbox. why don't you override/change RealSetText (called by SetText). If it's empty, supply the special text (and change the color). if it isn't empty, change the color back (only if it was changed; if the text was empty before) Martin -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Friday, February 5, 2010, 2:47:20 PM, you wrote: M why don't you override/change RealSetText (called by SetText). M If it's empty, supply the special text (and change the color). if it M isn't empty, change the color back (only if it was changed; if the text M was empty before) Because in that case you are fooling the text content and prone to errors because the control must handle every possible way to get the text content including windows messages from other applications and maybe other unknown modes from GTK2 or other widgetset. This code should alter the way a information is presented, not the information itself to avoid incompatibilities. That was my first approach but I discard it due changing internal data. -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 5 February 2010 16:30, JoshyFun joshy...@gmail.com wrote: Because in that case you are fooling the text content and prone to errors because the control must handle every possible way to get the In fpGUI we introduced a new property called TfpgEdit.ExtraHint That way it doesn't interfere with the actual text content - no matter how it is set. The ExtraHint text is painted directly onto the TfpgEdit background. But then again in fpGUI I have full control over all components design - I don't know the various LCL backends and there limitations on doing things. Painting directly onto TEdit's background canvas - is that what you are having issues with under GTK2? -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Friday 05 February 2010 16:35, Graeme Geldenhuys wrote: On 5 February 2010 16:30, JoshyFun joshy...@gmail.com wrote: Because in that case you are fooling the text content and prone to errors because the control must handle every possible way to get the In fpGUI we introduced a new property called TfpgEdit.ExtraHint That way it doesn't interfere with the actual text content - no matter how it is set. The ExtraHint text is painted directly onto the TfpgEdit background. But then again in fpGUI I have full control over all components design - I don't know the various LCL backends and there limitations on doing things. Painting directly onto TEdit's background canvas - is that what you are having issues with under GTK2? It's because ws paints such control (same like under qt), you can paint on it whatever, but at the end your changes won't be visible since ws theme painter do the job. At the end of this page http://wiki.lazarus.freepascal.org/User:Zeljan you can find the way how to cheat qt (so maybe there's similar way with gtk2), and have own paintings, but LCL doesn't provide eg. OwnerDraw property for TCustomEdit, or some result from paint message, where ws should know how to paint control (does ws paint , or we cheat it and we made our custom painting). zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Yes, trying to change the painting of standard controls leads to problems because each widgetset will deal with it differently. The most assured solution to work everywhere is to implement your own TEdit from scratch with just custom painting. -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Friday, February 5, 2010, 4:35:18 PM, you wrote: GG In fpGUI we introduced a new property called TfpgEdit.ExtraHint GG That way it doesn't interfere with the actual text content - no matter GG how it is set. The ExtraHint text is painted directly onto the GG TfpgEdit background. But then again in fpGUI I have full control over GG all components design - I don't know the various LCL backends and GG there limitations on doing things. fpGUI is not a problem as they are not native, you can draw whichever you want, but lost other capabilities inherited from the native system like the syntetic read for impared people. GG Painting directly onto TEdit's background canvas - is that what you GG are having issues with under GTK2? More or less :) Mostly is tell to GTK2 that I'll paint something over TEdit and please GTK do not erase it :) or I you do it let me know to repaint my own content. -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Friday, February 5, 2010, 5:33:29 PM, you wrote: Painting directly onto TEdit's background canvas - is that what you are having issues with under GTK2? z It's because ws paints such control (same like under qt), you can paint on it z whatever, but at the end your changes won't be visible since ws theme painter z do the job. Yes that seems to be the cause, something out of my control is finally painting the content. z At the end of this page z http://wiki.lazarus.freepascal.org/User:Zeljan you can z find the way how to cheat qt (so maybe there's similar way with gtk2), and z have own paintings, but LCL doesn't provide eg. OwnerDraw property for z TCustomEdit, or some result from paint message, where ws should know how to z paint control (does ws paint , or we cheat it and we made our custom z painting). I do not wish to struggle GTK, I wish to do everything in plain LCL way, but seems to be not possible. Anyway I'll investigate a bit and get more familiar with GTK way of life. -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Fri, Feb 5, 2010 at 5:00 PM, JoshyFun joshy...@gmail.com wrote: I do not wish to struggle GTK, I wish to do everything in plain LCL way, but seems to be not possible. Anyway I'll investigate a bit and get more familiar with GTK way of life. Yes, you need to mess with Gtk to do it. I would however recommend that you try it with Qt instead. The Qt API is much easier to use and the Qt interface is also much better organized. The downside is that you need the Pascal binding library if you use it. -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
2010/2/5 Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com: Yes, you need to mess with Gtk to do it. I would however recommend that you try it with Qt instead. The Qt API is much easier to use and the Qt interface is also much better organized. The downside is that you need the Pascal binding library if you use it. -- Felipe Monteiro de Carvalho What about licenses using of QT in commercial projects? Kjow -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 5 February 2010 18:33, zeljko zel...@holobit.net wrote: It's because ws paints such control (same like under qt), you can paint on it whatever, but at the end your changes won't be visible since ws theme painter do the job. OK, I understand the problem now. So background/theme painting is out of LCL's control - another negative point for wrapping external/native toolkits I guess. find the way how to cheat qt (so maybe there's similar way with gtk2), and have own paintings, but LCL doesn't provide eg. OwnerDraw property for I can only imagine such hacks will inevitably fail somewhere down the line - or is simply not supported by all widgetsets. Is it just my imagination, or is there more and more feature being added to LCL which only works on specific widgetsets (Restricted tab of Object Inspector). This is really not good news for LCL. :-( -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 5 February 2010 19:19, Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com wrote: Yes, trying to change the painting of standard controls leads to problems because each widgetset will deal with it differently. Ah, so you confirmed what I was thinking (in my reply to zeljko). No solution that works on all widgetsets. The most assured solution to work everywhere is to implement your own TEdit from scratch with just custom painting. But LCL doesn't want to go that way, because it's custom drawn (a la fpGUI). ;-) -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 5 February 2010 23:03, Felipe Monteiro de Carvalho felipemonteiro.carva...@gmail.com wrote: Yes, you need to mess with Gtk to do it. I would however recommend that you try it with Qt instead. But that defeats the point of LCL then - not all features work in all widgetsets. So you end up having an application that looks or behaves different depending on widgetset used (Qt, GTK1, GTK2, Win32, Carbon etc.). Consistent cross-platform out the window. :-( -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On 6 February 2010 00:31, Kjow antispamm...@gmail.com wrote: What about licenses using of QT in commercial projects? You need to purchase a commercial license. $2500 US per developer - starting price (if I remember correctly). -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://opensoft.homeip.net/fpgui/ -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
Hello Lazarus-List, Saturday, February 6, 2010, 12:01:38 AM, you wrote: GG On 5 February 2010 20:56, JoshyFun joshy...@gmail.com wrote: More or less :) Mostly is tell to GTK2 that I'll paint something over TEdit and please GTK do not erase it :) or I you do it let me know to repaint my own content. GG I think you are fighting a 'no win' situation. Theme painting always GG seems to take priority. Some years ago when I still used LCL I wanted [...] GG work up to a point with very limited customization - anything more and GG you end up having to implement the whole component as custom drawn. GG Hence fpGUI and MSEgui exist. Every widgetset has its own pros/cons and most things can be done in all of them. The problem with LCL is that it inherits a lot of habits from Windows platforms which is not wrong it is simply a as is as. GTK2 seems to me (I only know a bit of it) that does not perform a good abstraction between data and data representation, but I could be completly wrong. fpGUI and others are very useful for some tasks and very bad for others. QT seems to ambrace most of both worlds but it requieres a big runtime to be installed and has a poor presence en Windows environments. From my point of view, the use of native widgets is the best choice but some advanced things could be a nightmare :( GG So maybe it's time you implement that TJoshyFunEdit component. :-) Oh! no! for sure no, that's not the intention. My intention was to add a new facility to native TEdit, in fact I only need that facility for Win32 but as it is very simple I'm using it to investigate other widgetsets and try to resolve the same problem in different toys. -- Best regards, JoshyFun -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] GTK2 EraseBackgound
On Fri, Feb 5, 2010 at 8:31 PM, Kjow antispamm...@gmail.com wrote: What about licenses using of QT in commercial projects? This is a problem if you are using Qt 4.4 or previous. But now Lazarus uses and requires Qt 4.5+ which is LGPL, the same license as Gtk, which means in short: no problems Nokia changed the license. -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
