Re: [Lazarus] MDI implementation
On Thursday 17 of November 2011 08:24:33 Graeme Geldenhuys wrote: On 17/11/2011, zeljko zeljko@... wrote: What are you talking about ? An earlier post (from somebody else) said that LCL MDI support is only implemented in Win32 and Qt. All other platforms are not supported because their native widgetsets don't have something like MDI built in. LCL only wants to use native MDI. Thus LCL is a bit screwed because now you have a cross platform LCL, but not all features of LCL work on all platforms. Now the application developer is f**ked because he needs to keep checking which features work on which platforms. Oops! Totally defeating the point of a cross platform development framework don't you think. LCL is not screwed. As I said *mdiemulator is there for other widgetsets* Look screenshoots of gtk/gtk2 mdi here: http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk.png http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk2.png win32 ? http://wiki.lazarus.freepascal.org/Image:Mdiemulator_win32.png So, again: What are you talking about ? And now it's really funny. I got such a lot of sh*t from many lazarus developers about my custom drawn toolkit and how wrong that it compared to Lazarus native toolkit. Yet now somebody is working on implementing a custom drawn widgetset backend in the LCL. How ironic! No, it's not ironic since fpgui works only on linux and win.Custom drawn widgetset idea comes because of problems with android and wince, and I'm pretty sure that it'll be finished in next months and support at least x3 more targets than fpgui which will be same as it was 2-3 years ago. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Thu, Nov 17, 2011 at 8:24 AM, Graeme Geldenhuys graemeg.li...@gmail.com wrote: And now it's really funny. I got such a lot of sh*t from many lazarus developers about my custom drawn toolkit and how wrong that it compared to Lazarus native toolkit. Yet now somebody is working on implementing a custom drawn widgetset backend in the LCL. How ironic! Well, I personally think that the LCL umbrella is big enough to fit all tastes. There is no need to fight, people that prefer one or another way are free to develop the widgetsets which they prefer. And then each person can decide what to use: 1 Only native widgets or 2 Only custom drawn widgets (futurely) And we have a unique feature, which I've never heard of a framework having: 3 The hability to mix native and non-native widgets, which is very powerful for my projects, for example see this: http://wiki.lazarus.freepascal.org/fpbrowser#Screenshots fpBrowser in Mac OS X has access to the native menus, but the native TPageControl is undesirable in a browser. fpBrowser requires a TPageControl with a reliable look and feel across platforms, so it must be custom drawn. It also requires 2 features: Close Buttons and also the Add Button for adding new tabs. The Add button is not just an extra tab, since it's look can be anything depending on the Theme and it also doesn't receive the close button. The native TPageControl in Carbon/Cocoa cannot provide the required features. So here I optimized fpBrowser by using a mix of Lazarus controls: a native TMenu, but a non-native TPageControl. Since quite a long time we already have the hability to mix native and non-native Canvas support, TCanvas is the native one, TLazIntfImage+TFPImageCanvas is the non-native one. I just expanded this concept more broadly. -- Felipe Monteiro de Carvalho -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On 17/11/2011, zeljko zeljko@... wrote: LCL is not screwed. As I said *mdiemulator is there for other widgetsets* Is this emulator part of LCL? Also what is this MultiDoc I see in the lazarus wiki? I haven't created a MDI application in over a decade, so had to google it first. :-) I followed the following Delphi MDI tutorial to the letter - using latest Lazarus Trunk. I first tried that tutorial under Delphi 7 and it worked flawlessly. Then I tried Lazarus trunk. http://delphi.about.com/od/objectpascalide/l/aa042500a.htm I'm running under Linux, using the LCL-GTK2 widgetset. Needless to say, MDI under Linux did NOT work! All child forms are created outside the bounds of the MDI parent. Closing mdi child forms only work on the 3rd attempt clicking the top right X button. http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk.png http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk2.png Pretty pictures, but why doesn't it work in Lazarus trunk? No, it's not ironic since fpgui works only on linux and win. Correction, fpGUI works on: Linux, Windows, WinCE, Mac OS X (as an x11 style application), FreeBSD and family, OpenSolaris and Embedded arm-linux devices. targets than fpgui which will be same as it was 2-3 years ago. What are you talking about? -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On 17/11/2011, Felipe Monteiro de Carvalho felipemonteiro.carvalho@g wrote: all tastes. There is no need to fight, people that prefer one or another way are free to develop the widgetsets which they prefer. And then each person can decide what to use: And this I have been saying for years. The point is you simply can't create a cross-platform GUI development framework using native controls. There are just too many differences between each native toolkit, thus your cross-platform GUI framework can only at best use the common features. Seriously crippling your framework. This is why Qt (and Java Swing) implements its own widgets, but simply uses the native widget theme engine to paint on a Qt canvas. fpGUI could easily do the same in one of its themes (eg: the XP/Vista/Win7 theme - which is planned already). And we have a unique feature, which I've never heard of a framework having: 3 The hability to mix native and non-native widgets, which is very powerful for my projects, for example see this: Hardly unique. Delphi developers use many non-native widgets (Virtual Treeview, Raize components, DevX components etc.) in there VCL (native) applications. Anyway, we were talking about MDI -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Thursday 17 of November 2011 09:39:26 Graeme Geldenhuys wrote: On 17/11/2011, zeljko zeljko@... wrote: LCL is not screwed. As I said *mdiemulator is there for other widgetsets* Is this emulator part of LCL? Also what is this MultiDoc I see in the Not yet. lazarus wiki? Multidoc is trying to mimic mdi, I've tried it once and I didn't like it. I haven't created a MDI application in over a decade, so had to google it first. :-) I followed the following Delphi MDI tutorial to the letter - using latest Lazarus Trunk. I first tried that tutorial under Delphi 7 and it worked flawlessly. Then I tried Lazarus trunk. http://delphi.about.com/od/objectpascalide/l/aa042500a.htm I'm running under Linux, using the LCL-GTK2 widgetset. Needless to say, MDI under Linux did NOT work! All child forms are created outside the bounds of the MDI parent. Closing mdi child forms only work on the 3rd attempt clicking the top right X button. MDI started few days ago, only qt fully supports MDI on all targets where it works under lazarus (mac, linux, win). Gtk/Gtk2/Carbon isn't finished yet (depends on mdiemulator). Win32 will have native implementation (same as qt). http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk.png http://wiki.lazarus.freepascal.org/Image:Mdiemulator_gtk2.png Pretty pictures, but why doesn't it work in Lazarus trunk? Because, mdiemulator isn't ready yet. I don't want to commit partial/incomplete solution. No, it's not ironic since fpgui works only on linux and win. Correction, fpGUI works on: Linux, Windows, WinCE, Mac OS X (as an x11 style application), FreeBSD and family, OpenSolaris and Embedded arm-linux devices. targets than fpgui which will be same as it was 2-3 years ago. What are you talking about? I'm talking about fpgui :) zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On 17 November 2011 11:06, zeljko zeljko@h... wrote: MDI started few days ago, only qt fully supports MDI on all targets where it works under lazarus (mac, linux, win). OK, then the ever outdated LCL Roadmap wiki page needs to be updated. It mentions than MDI would be in Lazarus 0.9.30. That version has come and gone. http://wiki.freepascal.org/Roadmap What are you talking about? I'm talking about fpgui :) That's what I thought. Next time, research the subject before you spread FUD. You clearly haven't looked at fpGUI in the last 2-3 years. -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Thursday 17 of November 2011 10:12:00 Graeme Geldenhuys wrote: On 17 November 2011 11:06, zeljko zeljko@h... wrote: MDI started few days ago, only qt fully supports MDI on all targets where it works under lazarus (mac, linux, win). OK, then the ever outdated LCL Roadmap wiki page needs to be updated. It mentions than MDI would be in Lazarus 0.9.30. That version has come and gone. It does not mention that MDI would be in 0.9.30 . There's catch: An MDI LCL emulator for widgetsets which does not support MDI, also native implementation of MDI for qt and win32/64.Trivial version of MDI *probably* will be included with 0.9.30. . but, yes, roadmap should be updated. http://wiki.freepascal.org/Roadmap What are you talking about? I'm talking about fpgui :) That's what I thought. Next time, research the subject before you spread FUD. You clearly haven't looked at fpGUI in the last 2-3 years. I did not, you're right. Mea culpa. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
zeljko schrieb: On Wednesday 16 of November 2011 07:48:37 Hans-Peter Diettrich wrote: Why does the MDI implementation not use the DockManager interface? Because it uses native MDI where it's supported ? This reminds me on native CommCtrls, which don't exist on non-Win32 widgetsets. When all these controls come in a *portable* and a *Win32* flavor, the implementation would be simplified a lot. A DockManager has all functionality, required to implement MDI hosts and clients, so that only the properties (and menu) must be implemented. I don't know yet how to implement MDI via dockmanager for other targets than qt and win32 The implementation is independent from any widgetset. ... I've maded an mdiemulator which works but still has problems with positions inside mdi area. This should be feasable - can you provide your source code? DoDi -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Wednesday 16 of November 2011 15:11:00 Hans-Peter Diettrich wrote: zeljko schrieb: On Wednesday 16 of November 2011 07:48:37 Hans-Peter Diettrich wrote: Why does the MDI implementation not use the DockManager interface? Because it uses native MDI where it's supported ? This reminds me on native CommCtrls, which don't exist on non-Win32 widgetsets. When all these controls come in a *portable* and a *Win32* flavor, the implementation would be simplified a lot. qt mdi implementation works on all targets (win32,mac, linux, wince,android ...whatever). zeljko A DockManager has all functionality, required to implement MDI hosts and clients, so that only the properties (and menu) must be implemented. I don't know yet how to implement MDI via dockmanager for other targets than qt and win32 The implementation is independent from any widgetset. ... I've maded an mdiemulator which works but still has problems with positions inside mdi area. This should be feasable - can you provide your source code? Yes, but must find it first :) zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On 16/11/2011, zeljko zeljko@h wrote: qt mdi implementation works on all targets (win32,mac, linux, wince,android ...whatever). Yes, because they don't use OS supplied MDI, they implemented their own cross-platform version. So why LCL doesn't want to do the same, beats me. But if you guys like struggling, that's your prerogative. -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Thursday 17 of November 2011 07:55:16 Graeme Geldenhuys wrote: On 16/11/2011, zeljko zeljko@h wrote: qt mdi implementation works on all targets (win32,mac, linux, wince,android ...whatever). Yes, because they don't use OS supplied MDI, they implemented their own cross-platform version. So why LCL doesn't want to do the same, beats me. But if you guys like struggling, that's your prerogative. What are you talking about ? 1.MDI interface have same properties/routines as Delphi 2.Only 2 widgetsets have their MDI implementaton (win32, qt) 3.For other's I've written mdiemulator (which basically works), but have problem with left/top positions, so handle part should be rethinked, so widgetset (gtk2, carbon etc) should create form + title and take care of client rect (without title bar of mdi). 4.One day (but that's *one day in future*) we'll have lazarus custom drawn widgetset (yes, something like fpgui , but more friendly to lcl), and then we can talk about implement everything in lcl. 5.MDI support just started, so don't expect that it'll be finished next week (it could be if someone provide patches). zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On 17/11/2011, zeljko zeljko@... wrote: What are you talking about ? An earlier post (from somebody else) said that LCL MDI support is only implemented in Win32 and Qt. All other platforms are not supported because their native widgetsets don't have something like MDI built in. LCL only wants to use native MDI. Thus LCL is a bit screwed because now you have a cross platform LCL, but not all features of LCL work on all platforms. Now the application developer is f**ked because he needs to keep checking which features work on which platforms. Oops! Totally defeating the point of a cross platform development framework don't you think. And now it's really funny. I got such a lot of sh*t from many lazarus developers about my custom drawn toolkit and how wrong that it compared to Lazarus native toolkit. Yet now somebody is working on implementing a custom drawn widgetset backend in the LCL. How ironic! -- Regards, - Graeme - ___ fpGUI - a cross-platform Free Pascal GUI toolkit http://fpgui.sourceforge.net -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] MDI implementation
Why does the MDI implementation not use the DockManager interface? A DockManager has all functionality, required to implement MDI hosts and clients, so that only the properties (and menu) must be implemented. DoDi -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
16.11.2011 14:48, Hans-Peter Diettrich wrote: Why does the MDI implementation not use the DockManager interface? A DockManager has all functionality, required to implement MDI hosts and clients, so that only the properties (and menu) must be implemented. Maybe because lazarus goal is to implement things as much native as possible? And since qt and win32 have native MDI lazarus must use them. Best regards, Paul Ishenin. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
On Wednesday 16 of November 2011 07:48:37 Hans-Peter Diettrich wrote: Why does the MDI implementation not use the DockManager interface? Because it uses native MDI where it's supported ? A DockManager has all functionality, required to implement MDI hosts and clients, so that only the properties (and menu) must be implemented. I don't know yet how to implement MDI via dockmanager for other targets than qt and win32 ... I've maded an mdiemulator which works but still has problems with positions inside mdi area. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Hi, You can get the last version for Multidoc from the svn for my skychart application, see http://wiki.lazarus.freepascal.org/MultiDoc It work with Lazarus 0.9.30 and svn trunk. But the zeljko way look much better, so I eagerly await I can trash it :-) Patrick -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Maybe i'll say a pile of bullshit, but: Could contraints solve this problem as a workaround? William de Oliveira Ferreira Bacharel em Sistemas de Informação 2011/4/4 Patrick Chevalley pcheval...@gmail.com: Hi, You can get the last version for Multidoc from the svn for my skychart application, see http://wiki.lazarus.freepascal.org/MultiDoc It work with Lazarus 0.9.30 and svn trunk. But the zeljko way look much better, so I eagerly await I can trash it :-) Patrick -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Quoting Daniel Franzini daniel.franz...@gmail.com: Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). MDI isn't yet supported on lazarus, but will be available soon. You can see progres at my todo list. http://wiki.lazarus.freepascal.org/User:Zeljan There are also some mdi screenshoots. zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Thank you, Peter. I already tried in Delphi and it works fine. I wanted to do this in Lazarus because I intended it to work in Linux too. But thanks anyway for the tip and the code. 2011/4/2 Peter Williams pewilliams2...@live.com Hi Daniel, -- Date: Sat, 2 Apr 2011 19:02:46 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: [Lazarus] MDI implementation Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you I cannot tell you exactly what you're doing wrong, but I can do the next best thing. I have a Simple_Ed (simple text editor) which supports unlimited MDI child text windows working. You can find it here: https://sites.google.com/site/pewtas/home/delphi_source_code https://sites.google.com/site/pewtas/home/delphi_source_codeand the download for the Delphi 7 source code is here: simple_ed_005_src.zip https://sites.google.com/site/pewtas/simple_ed_005_src.zip?attredirects=019 KB - The Delphi source code files only (Note that this has a main form and a child MDI form). Best Regards, Peter / pew -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. ( http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. ( http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Hi Daniel, Date: Sun, 3 Apr 2011 10:28:07 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: Re: [Lazarus] MDI implementation Thank you, Peter. I already tried in Delphi and it works fine. I wanted to do this in Lazarus because I intended it to work in Linux too. But thanks anyway for the tip and the code. I found that my Delphi code does not compile in Lazarus for MDI forms. http://wiki.lazarus.freepascal.org/MultiDoc MultiDoc is the Lazarus version of MDI forms. http://sourceforge.net/projects/lazarus-ccr/files/MultiDoc/MultiDoc%200.2/multidoc-0.2.zip/download I installed it and ran the demo and found that when I have some child forms, when I close one of the forms I get an EAccess violation error (216) exception. Does anyone know how we can get rid of this AV error ??? Note the component is dated 2007-01-06 and version 0.2. Best Regards,Peter / pew 2011/4/2 Peter Williams pewilliams2...@live.com Hi Daniel, Date: Sat, 2 Apr 2011 19:02:46 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: [Lazarus] MDI implementation Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you I cannot tell you exactly what you're doing wrong, but I can do the next best thing. I have a Simple_Ed (simple text editor) which supports unlimited MDI child text windows working. You can find it here: https://sites.google.com/site/pewtas/home/delphi_source_code and the download for the Delphi 7 source code is here: simple_ed_005_src.zip 19 KB - The Delphi source code files only (Note that this has a main form and a child MDI form). Best Regards,Peter / pew -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. (http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. (http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Hi Peter. I found this version to be newer. http://www.oocities.org/br/hipernetjr/lmdi/index_en.html It seems to work well, but needs further testing. 2011/4/3 Peter Williams pewilliams2...@live.com Hi Daniel, -- Date: Sun, 3 Apr 2011 10:28:07 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: Re: [Lazarus] MDI implementation Thank you, Peter. I already tried in Delphi and it works fine. I wanted to do this in Lazarus because I intended it to work in Linux too. But thanks anyway for the tip and the code. I found that my Delphi code does not compile in Lazarus for MDI forms. http://wiki.lazarus.freepascal.org/MultiDoc MultiDoc is the Lazarus version of MDI forms. http://sourceforge.net/projects/lazarus-ccr/files/MultiDoc/MultiDoc%200.2/multidoc-0.2.zip/download I installed it and ran the demo and found that when I have some child forms, when I close one of the forms I get an EAccess violation error (216) exception. Does anyone know how we can get rid of this AV error ??? Note the component is dated 2007-01-06 and version 0.2. Best Regards, Peter / pew 2011/4/2 Peter Williams pewilliams2...@live.com Hi Daniel, -- Date: Sat, 2 Apr 2011 19:02:46 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: [Lazarus] MDI implementation Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you I cannot tell you exactly what you're doing wrong, but I can do the next best thing. I have a Simple_Ed (simple text editor) which supports unlimited MDI child text windows working. You can find it here: https://sites.google.com/site/pewtas/home/delphi_source_code https://sites.google.com/site/pewtas/home/delphi_source_codeand the download for the Delphi 7 source code is here: simple_ed_005_src.zip https://sites.google.com/site/pewtas/simple_ed_005_src.zip?attredirects=019 KB - The Delphi source code files only (Note that this has a main form and a child MDI form). Best Regards, Peter / pew -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. ( http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. ( http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Daniel Let us change our
Re: [Lazarus] MDI implementation
Hi Daniel, I am getting now an error with the new version. I try to install it and it comes back with cannot find package LMDI (or possibly graph). Best Regards,Peter / pew Date: Sun, 3 Apr 2011 14:17:18 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: Re: [Lazarus] MDI implementation Hi Peter. I found this version to be newer. http://www.oocities.org/br/hipernetjr/lmdi/index_en.html It seems to work well, but needs further testing. 2011/4/3 Peter Williams pewilliams2...@live.com Hi Daniel, Date: Sun, 3 Apr 2011 10:28:07 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: Re: [Lazarus] MDI implementation Thank you, Peter. I already tried in Delphi and it works fine. I wanted to do this in Lazarus because I intended it to work in Linux too. But thanks anyway for the tip and the code. I found that my Delphi code does not compile in Lazarus for MDI forms. http://wiki.lazarus.freepascal.org/MultiDoc MultiDoc is the Lazarus version of MDI forms. http://sourceforge.net/projects/lazarus-ccr/files/MultiDoc/MultiDoc%200.2/multidoc-0.2.zip/download I installed it and ran the demo and found that when I have some child forms, when I close one of the forms I get an EAccess violation error (216) exception. Does anyone know how we can get rid of this AV error ??? Note the component is dated 2007-01-06 and version 0.2. Best Regards,Peter / pew 2011/4/2 Peter Williams pewilliams2...@live.com Hi Daniel, Date: Sat, 2 Apr 2011 19:02:46 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: [Lazarus] MDI implementation Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you I cannot tell you exactly what you're doing wrong, but I can do the next best thing. I have a Simple_Ed (simple text editor) which supports unlimited MDI child text windows working. You can find it here: https://sites.google.com/site/pewtas/home/delphi_source_code and the download for the Delphi 7 source code is here: simple_ed_005_src.zip 19 KB - The Delphi source code files only (Note that this has a main form and a child MDI form). Best Regards,Peter / pew -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. (http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. (http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] MDI implementation
Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. ( http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] MDI implementation
Hi Daniel, Date: Sat, 2 Apr 2011 19:02:46 -0300 From: daniel.franz...@gmail.com To: lazarus@lists.lazarus.freepascal.org Subject: [Lazarus] MDI implementation Hi there. I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31). I created the main form and set its FormStyle property to fsMDIForm. Then I created the child form and set its FormsStyle to fsMDIChild. I also created a menu where I can start a new form. I moved the child form the non-automatic-created form list. And used the following code to create it: - procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject); var frmChild: TfrmRelatVend; begin frmChild := TfrmRelatVend.Create(self); frmChild.Show; end; - I also wrote a formClose handler for the child so it gets freed when I close it. - procedure TfrmRelatVend.FormClose(Sender: TObject; var CloseAction: TCloseAction); begin CloseAction := caFree; end; - Altough the form gets created and shows up, it does not have a MDI behavior, eg, it does not stay in the limits of its parent form and it gets maximized on top of its parent form. What am I doing wrong? thank you I cannot tell you exactly what you're doing wrong, but I can do the next best thing. I have a Simple_Ed (simple text editor) which supports unlimited MDI child text windows working. You can find it here: https://sites.google.com/site/pewtas/home/delphi_source_code and the download for the Delphi 7 source code is here: simple_ed_005_src.zip 19 KB - The Delphi source code files only (Note that this has a main form and a child MDI form). Best Regards,Peter / pew -- Daniel Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do. (Donald Knuth) Yes, technogeeks can be funny, even if only to each other. (http://www.boogieonline.com/revolution/science/humor/) Man is driven to create; I know I really love to create things. And while I'm not good at painting, drawing, or music, I can write software. (Yukihiro Matsumoto, a.k.a. ``Matz'') -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
